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// * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.  See the NOTICE file *
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// * to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance            *
// * with the License.  You may obtain a copy of the License at                                                              *
// *                                                                                                                         *
// *  http://www.apache.org/licenses/LICENSE-2.0                                                                             *
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// * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an  *
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// * specific language governing permissions and limitations under the License.                                              *
// ***************************************************************************************************************************
package org.apache.juneau.rest.client;

import static org.apache.juneau.internal.StringUtils.*;
import static org.apache.juneau.parser.Parser.*;
import static org.apache.juneau.rest.client.RestClient.*;
import static org.apache.juneau.serializer.Serializer.*;
import static org.apache.juneau.uon.UonSerializer.*;

import java.lang.reflect.*;
import java.net.*;
import java.security.*;
import java.util.*;
import java.util.concurrent.*;
import java.util.logging.*;

import javax.net.ssl.*;

import org.apache.http.*;
import org.apache.http.auth.*;
import org.apache.http.client.*;
import org.apache.http.client.CookieStore;
import org.apache.http.client.config.*;
import org.apache.http.client.entity.*;
import org.apache.http.config.*;
import org.apache.http.conn.*;
import org.apache.http.conn.routing.*;
import org.apache.http.conn.socket.*;
import org.apache.http.conn.ssl.*;
import org.apache.http.conn.util.*;
import org.apache.http.cookie.*;
import org.apache.http.impl.client.*;
import org.apache.http.impl.conn.*;
import org.apache.http.protocol.*;
import org.apache.juneau.*;
import org.apache.juneau.http.*;
import org.apache.juneau.httppart.*;
import org.apache.juneau.json.*;
import org.apache.juneau.parser.*;
import org.apache.juneau.serializer.*;
import org.apache.juneau.uon.*;

/**
 * Builder class for the {@link RestClient} class.
 * 
 * <p>
 * Instances of this class are created by the following methods:
 * <ul>
 *    <li>{@link RestClient#create()} - Create from scratch.
 *    <li>{@link RestClient#create(Serializer,Parser)} - Create from scratch using specified serializer/parser.
 *    <li>{@link RestClient#create(Class,Class)} - Create from scratch using specified serializer/parser classes.
 *    <li>{@link RestClient#builder()} - Copy settings from an existing client.
 * </ul>
 * 
 * <h5 class='section'>See Also:</h5>
 * <ul>
 *    <li class='link'><a class="doclink" href="../../../../../overview-summary.html#juneau-rest-client">Overview &gt; juneau-rest-client</a>
 * </ul>
 */
public class RestClientBuilder extends BeanContextBuilder {

   private HttpClientConnectionManager httpClientConnectionManager;
   private HttpClientBuilder httpClientBuilder;
   private CloseableHttpClient httpClient;
   private SSLOpts sslOpts;
   private boolean pooled;

   /**
    * Constructor.
    */
   RestClientBuilder(PropertyStore ps, HttpClientBuilder httpClientBuilder) {
      super(ps);
      this.httpClientBuilder = httpClientBuilder != null ? httpClientBuilder : createHttpClientBuilder();
   }

   @SuppressWarnings("resource")
   @Override /* ContextBuilder */
   public RestClient build() {
      try {
         CloseableHttpClient c = httpClient != null ? httpClient : createHttpClient();
         PropertyStore ps = psb.build();

         return new RestClient(ps, httpClientBuilder, c);
      } catch (Exception e) {
         throw new RuntimeException(e);
      }
   }

   /**
    * Creates an instance of an {@link HttpClient} to be used to handle all HTTP communications with the target server.
    * 
    * <p>
    * This HTTP client is used when the HTTP client is not specified through one of the constructors or the
    * {@link #httpClient(CloseableHttpClient, boolean)} method.
    * 
    * <p>
    * Subclasses can override this method to provide specially-configured HTTP clients to handle stuff such as
    * SSL/TLS certificate handling, authentication, etc.
    * 
    * <p>
    * The default implementation returns an instance of {@link HttpClient} using the client builder returned by
    * {@link #createHttpClientBuilder()}.
    * 
    * @return The HTTP client to use.
    * @throws Exception
    */
   protected CloseableHttpClient createHttpClient() throws Exception {
      // Don't call createConnectionManager() if RestClient.setConnectionManager() was called.
      if (httpClientConnectionManager == null)
         httpClientBuilder.setConnectionManager(createConnectionManager());
      return httpClientBuilder.build();
   }

   /**
    * Creates an instance of an {@link HttpClientBuilder} to be used to create the {@link HttpClient}.
    * 
    * <p>
    * Subclasses can override this method to provide their own client builder.
    * 
    * <p>
    * The predefined method returns an {@link HttpClientBuilder} with the following settings:
    * <ul>
    *    <li>Lax redirect strategy.
    *    <li>The connection manager returned by {@link #createConnectionManager()}.
    * </ul>
    * 
    * @return The HTTP client builder to use to create the HTTP client.
    */
   protected HttpClientBuilder createHttpClientBuilder() {
      HttpClientBuilder b = HttpClientBuilder.create();
      b.setRedirectStrategy(new AllowAllRedirects());
      return b;
   }

   /**
    * Creates the {@link HttpClientConnectionManager} returned by {@link #createConnectionManager()}.
    * 
    * <p>
    * Subclasses can override this method to provide their own connection manager.
    * 
    * <p>
    * The default implementation returns an instance of a {@link PoolingHttpClientConnectionManager}.
    * 
    * @return The HTTP client builder to use to create the HTTP client.
    */
   @SuppressWarnings("resource")
   protected HttpClientConnectionManager createConnectionManager() {
      if (sslOpts != null) {
         HostnameVerifier hv = null;
         switch (sslOpts.getHostVerify()) {
            case LAX: hv = new NoopHostnameVerifier(); break;
            case DEFAULT: hv = new DefaultHostnameVerifier(); break;
            default: throw new RuntimeException("Programmer error");
         }

         for (String p : split(sslOpts.getProtocols())) {
            try {
               TrustManager tm = new SimpleX509TrustManager(sslOpts.getCertValidate() == SSLOpts.CertValidate.LAX);

               SSLContext ctx = SSLContext.getInstance(p);
               ctx.init(null, new TrustManager[] { tm }, null);

               // Create a socket to ensure this algorithm is acceptable.
               // This will correctly disallow certain configurations (such as SSL_TLS under FIPS)
               ctx.getSocketFactory().createSocket().close();
               SSLConnectionSocketFactory sf = new SSLConnectionSocketFactory(ctx, hv);
               setSSLSocketFactory(sf);

               Registry<ConnectionSocketFactory> r = RegistryBuilder.<ConnectionSocketFactory> create().register("https", sf).build();

               return (pooled ? new PoolingHttpClientConnectionManager(r) : new BasicHttpClientConnectionManager(r));
            } catch (Throwable t) {}
         }
      }

         // Using pooling connection so that this client is threadsafe.
      return (pooled ? new PoolingHttpClientConnectionManager() : new BasicHttpClientConnectionManager());
   }

   /**
    * Enable SSL support on this client.
    * 
    * @param opts
    *    The SSL configuration options.
    *    See {@link SSLOpts} for details.
    *    This method is a no-op if <code>sslConfig</code> is <jk>null</jk>.
    * @return This object (for method chaining).
    * @throws KeyStoreException
    * @throws NoSuchAlgorithmException
    */
   public RestClientBuilder enableSSL(SSLOpts opts) throws KeyStoreException, NoSuchAlgorithmException {
      this.sslOpts = opts;
      return this;
   }

   /**
    * Enable LAX SSL support.
    * 
    * <p>
    * Certificate chain validation and hostname verification is disabled.
    * 
    * @return This object (for method chaining).
    * @throws KeyStoreException
    * @throws NoSuchAlgorithmException
    */
   public RestClientBuilder enableLaxSSL() throws KeyStoreException, NoSuchAlgorithmException {
      return enableSSL(SSLOpts.LAX);
   }

   /**
    * Sets the client version by setting the value for the <js>"X-Client-Version"</js> header.
    * 
    * @param version The version string (e.g. <js>"1.2.3"</js>)
    * @return This object (for method chaining).
    */
   public RestClientBuilder clientVersion(String version) {
      return header("X-Client-Version", version);
   }

   /**
    * Adds a {@link RestCallLogger} to the list of interceptors on this class.
    * 
    * @param level The log level to log messages at.
    * @param log The logger to log messages to.
    * @return This object (for method chaining).
    */
   public RestClientBuilder logTo(Level level, Logger log) {
      return interceptors(new RestCallLogger(level, log));
   }

   /**
    * When called, the {@link #createConnectionManager()} method will return a {@link PoolingHttpClientConnectionManager}
    * instead of a {@link BasicHttpClientConnectionManager}.
    * 
    * @return This object (for method chaining).
    */
   public RestClientBuilder pooled() {
      this.pooled = true;
      return this;
   }

   /**
    * Set up this client to use BASIC auth.
    * 
    * @param host The auth scope hostname.
    * @param port The auth scope port.
    * @param user The username.
    * @param pw The password.
    * @return This object (for method chaining).
    */
   public RestClientBuilder basicAuth(String host, int port, String user, String pw) {
      AuthScope scope = new AuthScope(host, port);
      Credentials up = new UsernamePasswordCredentials(user, pw);
      CredentialsProvider p = new BasicCredentialsProvider();
      p.setCredentials(scope, up);
      setDefaultCredentialsProvider(p);
      return this;
   }

   /**
    * Sets the internal {@link HttpClient} to use for handling HTTP communications.
    * 
    * @param httpClient The HTTP client.
    * @param keepHttpClientOpen Don't close this client when the {@link RestClient#close()} method is called.
    * @return This object (for method chaining).
    */
   public RestClientBuilder httpClient(CloseableHttpClient httpClient, boolean keepHttpClientOpen) {
      this.httpClient = httpClient;
      set(RESTCLIENT_keepHttpClientOpen, keepHttpClientOpen);
      return this;
   }


   //--------------------------------------------------------------------------------
   // HTTP headers
   //--------------------------------------------------------------------------------

   /**
    * Sets the value for the <code>Accept</code> request header.
    * 
    * <p>
    * This overrides the media type specified on the parser, but is overridden by calling
    * <code>header(<js>"Accept"</js>, value);</code>
    * 
    * @param value The new header value.
    * @return This object (for method chaining).
    */
   public RestClientBuilder accept(Object value) {
      return header("Accept", value);
   }

   /**
    * Sets the value for the <code>Accept-Charset</code> request header.
    * 
    * <p>
    * This is a shortcut for calling <code>header(<js>"Accept-Charset"</js>, value);</code>
    * 
    * @param value The new header value.
    * @return This object (for method chaining).
    */
   public RestClientBuilder acceptCharset(Object value) {
      return header("Accept-Charset", value);
   }

   /**
    * Sets the value for the <code>Accept-Encoding</code> request header.
    * 
    * <p>
    * This is a shortcut for calling <code>header(<js>"Accept-Encoding"</js>, value);</code>
    * 
    * @param value The new header value.
    * @return This object (for method chaining).
    */
   public RestClientBuilder acceptEncoding(Object value) {
      return header("Accept-Encoding", value);
   }

   /**
    * Sets the value for the <code>Accept-Language</code> request header.
    * 
    * <p>
    * This is a shortcut for calling <code>header(<js>"Accept-Language"</js>, value);</code>
    * 
    * @param value The new header value.
    * @return This object (for method chaining).
    */
   public RestClientBuilder acceptLanguage(Object value) {
      return header("Accept-Language", value);
   }

   /**
    * Sets the value for the <code>Authorization</code> request header.
    * 
    * <p>
    * This is a shortcut for calling <code>header(<js>"Authorization"</js>, value);</code>
    * 
    * @param value The new header value.
    * @return This object (for method chaining).
    */
   public RestClientBuilder authorization(Object value) {
      return header("Authorization", value);
   }

   /**
    * Sets the value for the <code>Cache-Control</code> request header.
    * 
    * <p>
    * This is a shortcut for calling <code>header(<js>"Cache-Control"</js>, value);</code>
    * 
    * @param value The new header value.
    * @return This object (for method chaining).
    */
   public RestClientBuilder cacheControl(Object value) {
      return header("Cache-Control", value);
   }

   /**
    * Sets the value for the <code>Connection</code> request header.
    * 
    * <p>
    * This is a shortcut for calling <code>header(<js>"Connection"</js>, value);</code>
    * 
    * @param value The new header value.
    * @return This object (for method chaining).
    */
   public RestClientBuilder connection(Object value) {
      return header("Connection", value);
   }

   /**
    * Sets the value for the <code>Content-Length</code> request header.
    * 
    * <p>
    * This is a shortcut for calling <code>header(<js>"Content-Length"</js>, value);</code>
    * 
    * @param value The new header value.
    * @return This object (for method chaining).
    */
   public RestClientBuilder contentLength(Object value) {
      return header("Content-Length", value);
   }

   /**
    * Sets the value for the <code>Content-Type</code> request header.
    * 
    * <p>
    * This overrides the media type specified on the serializer, but is overridden by calling
    * <code>header(<js>"Content-Type"</js>, value);</code>
    * 
    * @param value The new header value.
    * @return This object (for method chaining).
    */
   public RestClientBuilder contentType(Object value) {
      return header("Content-Type", value);
   }

   /**
    * Sets the value for the <code>Date</code> request header.
    * 
    * <p>
    * This is a shortcut for calling <code>header(<js>"Date"</js>, value);</code>
    * 
    * @param value The new header value.
    * @return This object (for method chaining).
    */
   public RestClientBuilder date(Object value) {
      return header("Date", value);
   }

   /**
    * Sets the value for the <code>Expect</code> request header.
    * 
    * <p>
    * This is a shortcut for calling <code>header(<js>"Expect"</js>, value);</code>
    * 
    * @param value The new header value.
    * @return This object (for method chaining).
    */
   public RestClientBuilder expect(Object value) {
      return header("Expect", value);
   }

   /**
    * Sets the value for the <code>Forwarded</code> request header.
    * 
    * <p>
    * This is a shortcut for calling <code>header(<js>"Forwarded"</js>, value);</code>
    * 
    * @param value The new header value.
    * @return This object (for method chaining).
    */
   public RestClientBuilder forwarded(Object value) {
      return header("Forwarded", value);
   }

   /**
    * Sets the value for the <code>From</code> request header.
    * 
    * <p>
    * This is a shortcut for calling <code>header(<js>"From"</js>, value);</code>
    * 
    * @param value The new header value.
    * @return This object (for method chaining).
    */
   public RestClientBuilder from(Object value) {
      return header("From", value);
   }

   /**
    * Sets the value for the <code>Host</code> request header.
    * 
    * <p>
    * This is a shortcut for calling <code>header(<js>"Host"</js>, value);</code>
    * 
    * @param value The new header value.
    * @return This object (for method chaining).
    */
   public RestClientBuilder host(Object value) {
      return header("Host", value);
   }

   /**
    * Sets the value for the <code>If-Match</code> request header.
    * 
    * <p>
    * This is a shortcut for calling <code>header(<js>"If-Match"</js>, value);</code>
    * 
    * @param value The new header value.
    * @return This object (for method chaining).
    */
   public RestClientBuilder ifMatch(Object value) {
      return header("If-Match", value);
   }

   /**
    * Sets the value for the <code>If-Modified-Since</code> request header.
    * 
    * <p>
    * This is a shortcut for calling <code>header(<js>"If-Modified-Since"</js>, value);</code>
    * 
    * @param value The new header value.
    * @return This object (for method chaining).
    */
   public RestClientBuilder ifModifiedSince(Object value) {
      return header("If-Modified-Since", value);
   }

   /**
    * Sets the value for the <code>If-None-Match</code> request header.
    * 
    * <p>
    * This is a shortcut for calling <code>header(<js>"If-None-Match"</js>, value);</code>
    * 
    * @param value The new header value.
    * @return This object (for method chaining).
    */
   public RestClientBuilder ifNoneMatch(Object value) {
      return header("If-None-Match", value);
   }

   /**
    * Sets the value for the <code>If-Range</code> request header.
    * 
    * <p>
    * This is a shortcut for calling <code>header(<js>"If-Range"</js>, value);</code>
    * 
    * @param value The new header value.
    * @return This object (for method chaining).
    */
   public RestClientBuilder ifRange(Object value) {
      return header("If-Range", value);
   }

   /**
    * Sets the value for the <code>If-Unmodified-Since</code> request header.
    * 
    * <p>
    * This is a shortcut for calling <code>header(<js>"If-Unmodified-Since"</js>, value);</code>
    * 
    * @param value The new header value.
    * @return This object (for method chaining).
    */
   public RestClientBuilder ifUnmodifiedSince(Object value) {
      return header("If-Unmodified-Since", value);
   }

   /**
    * Sets the value for the <code>Max-Forwards</code> request header.
    * 
    * <p>
    * This is a shortcut for calling <code>header(<js>"Max-Forwards"</js>, value);</code>
    * 
    * @param value The new header value.
    * @return This object (for method chaining).
    */
   public RestClientBuilder maxForwards(Object value) {
      return header("If-Unmodified-Since", value);
   }

   /**
    * When called, <code>No-Trace: true</code> is added to requests.
    * 
    * <p>
    * This gives the opportunity for the servlet to not log errors on invalid requests.
    * This is useful for testing purposes when you don't want your log file to show lots of errors that are simply the
    * results of testing.
    * 
    * @return This object (for method chaining).
    */
   public RestClientBuilder noTrace() {
      return header("No-Trace", true);
   }

   /**
    * Sets the value for the <code>Origin</code> request header.
    * 
    * <p>
    * This is a shortcut for calling <code>header(<js>"Origin"</js>, value);</code>
    * 
    * @param value The new header value.
    * @return This object (for method chaining).
    */
   public RestClientBuilder origin(Object value) {
      return header("If-Unmodified-Since", value);
   }

   /**
    * Sets the value for the <code>Pragma</code> request header.
    * 
    * <p>
    * This is a shortcut for calling <code>header(<js>"Pragma"</js>, value);</code>
    * 
    * @param value The new header value.
    * @return This object (for method chaining).
    */
   public RestClientBuilder pragma(Object value) {
      return header("Pragma", value);
   }

   /**
    * Sets the value for the <code>Proxy-Authorization</code> request header.
    * 
    * <p>
    * This is a shortcut for calling <code>header(<js>"Proxy-Authorization"</js>, value);</code>
    * 
    * @param value The new header value.
    * @return This object (for method chaining).
    */
   public RestClientBuilder proxyAuthorization(Object value) {
      return header("Proxy-Authorization", value);
   }

   /**
    * Sets the value for the <code>Range</code> request header.
    * 
    * <p>
    * This is a shortcut for calling <code>header(<js>"Range"</js>, value);</code>
    * 
    * @param value The new header value.
    * @return This object (for method chaining).
    */
   public RestClientBuilder range(Object value) {
      return header("Range", value);
   }

   /**
    * Sets the value for the <code>Referer</code> request header.
    * 
    * <p>
    * This is a shortcut for calling <code>header(<js>"Referer"</js>, value);</code>
    * 
    * @param value The new header value.
    * @return This object (for method chaining).
    */
   public RestClientBuilder referer(Object value) {
      return header("Referer", value);
   }

   /**
    * Sets the value for the <code>TE</code> request header.
    * 
    * <p>
    * This is a shortcut for calling <code>header(<js>"TE"</js>, value);</code>
    * 
    * @param value The new header value.
    * @return This object (for method chaining).
    */
   public RestClientBuilder te(Object value) {
      return header("TE", value);
   }

   /**
    * Sets the value for the <code>User-Agent</code> request header.
    * 
    * <p>
    * This is a shortcut for calling <code>header(<js>"User-Agent"</js>, value);</code>
    * 
    * @param value The new header value.
    * @return This object (for method chaining).
    */
   public RestClientBuilder userAgent(Object value) {
      return header("User-Agent", value);
   }

   /**
    * Sets the value for the <code>Upgrade</code> request header.
    * 
    * <p>
    * This is a shortcut for calling <code>header(<js>"Upgrade"</js>, value);</code>
    * 
    * @param value The new header value.
    * @return This object (for method chaining).
    */
   public RestClientBuilder upgrade(Object value) {
      return header("Upgrade", value);
   }

   /**
    * Sets the value for the <code>Via</code> request header.
    * 
    * <p>
    * This is a shortcut for calling <code>header(<js>"Via"</js>, value);</code>
    * 
    * @param value The new header value.
    * @return This object (for method chaining).
    */
   public RestClientBuilder via(Object value) {
      return header("Via", value);
   }

   /**
    * Sets the value for the <code>Warning</code> request header.
    * 
    * <p>
    * This is a shortcut for calling <code>header(<js>"Warning"</js>, value);</code>
    * 
    * @param value The new header value.
    * @return This object (for method chaining).
    */
   public RestClientBuilder warning(Object value) {
      return header("Warning", value);
   }


   //--------------------------------------------------------------------------------
   // Properties
   //--------------------------------------------------------------------------------

   /**
    * Configuration property:  Executor service.
    * 
    * <p>
    * Defines the executor service to use when calling future methods on the {@link RestCall} class.
    * 
    * <p>
    * This executor service is used to create {@link Future} objects on the following methods:
    * <ul>
    *    <li>{@link RestCall#runFuture()}
    *    <li>{@link RestCall#getResponseFuture(Class)}
    *    <li>{@link RestCall#getResponseFuture(Type,Type...)}
    *    <li>{@link RestCall#getResponseAsString()}
    * </ul>
    * 
    * <p>
    * The default executor service is a single-threaded {@link ThreadPoolExecutor} with a 30 second timeout
    * and a queue size of 10.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link RestClient#RESTCLIENT_executorService}
    *    <li class='jf'>{@link RestClient#RESTCLIENT_executorServiceShutdownOnClose}
    * </ul>
    * 
    * @param executorService The executor service.
    * @param shutdownOnClose Call {@link ExecutorService#shutdown()} when {@link RestClient#close()} is called.
    * @return This object (for method chaining).
    */
   public RestClientBuilder executorService(ExecutorService executorService, boolean shutdownOnClose) {
      set(RESTCLIENT_executorService, executorService);
      set(RESTCLIENT_executorServiceShutdownOnClose, shutdownOnClose);
      return this;
   }

   /**
    * Configuration property:  Request headers.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link RestClient#RESTCLIENT_headers}
    * </ul>
    * 
    * @param key The header name.
    * @param value The header value.
    * @return This object (for method chaining).
    */
   public RestClientBuilder header(String key, Object value) {
      return addTo(RESTCLIENT_headers, key, value);
   }

   /**
    * Configuration property:  Keep HttpClient open.
    * 
    * <p>
    * Don't close this client when the {@link RestClient#close()} method is called.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link RestClient#RESTCLIENT_keepHttpClientOpen}
    * </ul>
    * 
    * @param value 
    *    The new value for this property.
    *    <br>The default value is <jk>false</jk>.
    * @return This object (for method chaining).
    */
   public RestClientBuilder keepHttpClientOpen(boolean value) {
      return set(RESTCLIENT_keepHttpClientOpen, value);
   }

   /**
    * Configuration property:  Call interceptors.
    * 
    * <p>
    * Adds an interceptor that gets called immediately after a connection is made.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link RestClient#RESTCLIENT_interceptors}
    * </ul>
    * 
    * @param value The values to add to this setting.
    * @return This object (for method chaining).
    */
   public RestClientBuilder interceptors(RestCallInterceptor...value) {
      return addTo(RESTCLIENT_interceptors, value);
   }

   /**
    * Configuration property:  Parser.
    * 
    * <p>
    * The parser to use for parsing POJOs in response bodies.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link RestClient#RESTCLIENT_parser}
    * </ul>
    * 
    * @param value 
    *    The new value for this setting.
    *    <br>The default value is {@link JsonParser#DEFAULT}.
    * @return This object (for method chaining).
    */
   public RestClientBuilder parser(Class<? extends Parser> value) {
      return set(RESTCLIENT_parser, value);
   }

   /**
    * Configuration property:  Parser.
    * 
    * <p>
    * Same as {@link #parser(Parser)} except takes in a parser instance.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link RestClient#RESTCLIENT_parser}
    * </ul>
    * 
    * @param value 
    *    The new value for this setting.
    *    <br>The default value is {@link JsonParser#DEFAULT}.
    * @return This object (for method chaining).
    */
   public RestClientBuilder parser(Parser value) {    
      return set(RESTCLIENT_parser, value);
   }

   /**
    * Configuration property:  Part serializer.
    * 
    * <p>
    * The serializer to use for serializing POJOs in form data, query parameters, headers, and path variables.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link RestClient#RESTCLIENT_partSerializer}
    * </ul>
    * 
    * @param value 
    *    The new value for this setting.
    *    <br>The default value is {@link SimpleUonPartSerializer}.
    * @return This object (for method chaining).
    */
   public RestClientBuilder partSerializer(Class<? extends HttpPartSerializer> value) {
      return set(RESTCLIENT_partSerializer, value);
   }

   /**
    * Configuration property:  Part serializer.
    * 
    * <p>
    * Same as {@link #partSerializer(Class)} but takes in a parser instance.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link RestClient#RESTCLIENT_partSerializer}
    * </ul>
    * 
    * @param value 
    *    The new value for this setting.
    *    <br>The default value is {@link SimpleUonPartSerializer}.
    * @return This object (for method chaining).
    */
   public RestClientBuilder partSerializer(HttpPartSerializer value) {
      return set(RESTCLIENT_partSerializer, value);
   }

   /**
    * Make HTTP calls retryable if an error response (>=400) is received.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link RestClient#RESTCLIENT_retries}
    *    <li class='jf'>{@link RestClient#RESTCLIENT_retryInterval}
    *    <li class='jf'>{@link RestClient#RESTCLIENT_retryOn}
    * </ul>
    * 
    * @param retries The number of retries to attempt.
    * @param interval The time in milliseconds between attempts.
    * @param retryOn
    *    Optional object used for determining whether a retry should be attempted.
    *    If <jk>null</jk>, uses {@link RetryOn#DEFAULT}.
    * @return This object (for method chaining).
    */
   public RestClientBuilder retryable(int retries, int interval, RetryOn retryOn) {
      set(RESTCLIENT_retries, retries);
      set(RESTCLIENT_retryInterval, interval);
      set(RESTCLIENT_retryOn, retryOn);
      return this;
   }

   /**
    * Configuration property:  Root URI.
    * 
    * <p>
    * When set, relative URL strings passed in through the various rest call methods (e.g. {@link RestClient#doGet(Object)}
    * will be prefixed with the specified root.
    * <br>This root URL is ignored on those methods if you pass in a {@link URL}, {@link URI}, or an absolute URL string.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link RestClient#RESTCLIENT_rootUri}
    * </ul>
    * 
    * @param value
    *    The root URL to prefix to relative URL strings.
    *    <br>Trailing slashes are trimmed.
    *    <br>Usually a <code>String</code> but you can also pass in <code>URI</code> and <code>URL</code> objects as well.
    * @return This object (for method chaining).
    */
   public RestClientBuilder rootUrl(Object value) {
      return set(RESTCLIENT_rootUri, value);
   }

   /**
    * Configuration property:  Request query parameters.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link RestClient#RESTCLIENT_query}
    * </ul>
    * 
    * @param key The query parameter name.
    * @param value The query parameter value value.
    * @return This object (for method chaining).
    */
   public RestClientBuilder query(String key, Object value) {
      return addTo(RESTCLIENT_query, key, value);
   }

   /**
    * Configuration property:  Serializer.
    * 
    * <p>
    * The serializer to use for serializing POJOs in request bodies.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link RestClient#RESTCLIENT_serializer}
    * </ul>
    * 
    * @param value 
    *    The new value for this setting.
    *    <br>The default is {@link JsonSerializer}.
    * @return This object (for method chaining).
    */
   public RestClientBuilder serializer(Class<? extends Serializer> value) {
      return set(RESTCLIENT_serializer, value);
   }

   /**
    * Configuration property:  Serializer.
    * 
    * <p>
    * Same as {@link #serializer(Class)} but takes in a serializer instance.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link RestClient#RESTCLIENT_serializer}
    * </ul>
    * 
    * @param value 
    *    The new value for this setting.
    *    <br>The default is {@link JsonSerializer}.
    * @return This object (for method chaining).
    */
   public RestClientBuilder serializer(Serializer value) {
      return set(RESTCLIENT_serializer, value);
   }

   /**
    * Configuration property:  Abridged output.
    * 
    * <p>
    * When enabled, it is assumed that the parser knows the exact Java POJO type being parsed, and therefore top-level
    * type information that might normally be included to determine the data type will not be serialized.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Serializer#SERIALIZER_abridged}
    * </ul>
    * 
    * @param value 
    *    The new value for this property.
    *    <br>The default is <jk>false</jk>.
    * @return This object (for method chaining).
    */
   public RestClientBuilder abridged(boolean value) {
      return set(SERIALIZER_abridged, value);
   }

   /**
    * Configuration property:  Abridged output.
    * 
    * <p>
    * Shortcut for calling <code>abridged(<jk>true</jk>)</code>.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Serializer#SERIALIZER_abridged}
    * </ul>
    * 
    * @return This object (for method chaining).
    */
   public RestClientBuilder abridged() {
      return set(SERIALIZER_abridged, true);
   }

   /**
    * Configuration property:  Add <js>"_type"</js> properties when needed.
    * 
    * <p>
    * If <jk>true</jk>, then <js>"_type"</js> properties will be added to beans if their type cannot be inferred
    * through reflection.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Serializer#SERIALIZER_addBeanTypeProperties}
    * </ul>
    * 
    * @param value 
    *    The new value for this property.
    *    <br>The default is <jk>true</jk>.
    * @return This object (for method chaining).
    */
   public RestClientBuilder addBeanTypeProperties(boolean value) {
      return set(SERIALIZER_addBeanTypeProperties, value);
   }

   /**
    * Configuration property:  Automatically detect POJO recursions.
    * 
    * <p>
    * Specifies that recursions should be checked for during serialization.
    * 
    * <h5 class='section'>Notes:</h5>
    * <ul class='spaced-list'>
    *    <li>
    *       Checking for recursion can cause a small performance penalty.
    * </ul>
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Serializer#SERIALIZER_detectRecursions}
    * </ul>
    * 
    * @param value 
    *    The new value for this property.
    *    <br>The default is <jk>false</jk>.
    * @return This object (for method chaining).
    */
   public RestClientBuilder detectRecursions(boolean value) {
      return set(SERIALIZER_detectRecursions, value);
   }

   /**
    * Configuration property:  Automatically detect POJO recursions.
    * 
    * <p>
    * Shortcut for calling <code>detectRecursions(<jk>true</jk>)</code>.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Serializer#SERIALIZER_detectRecursions}
    * </ul>
    * 
    * @return This object (for method chaining).
    */
   public RestClientBuilder detectRecursions() {
      return set(SERIALIZER_detectRecursions, true);
   }

   /**
    * Configuration property:  Ignore recursion errors.
    * 
    * <p>
    * If <jk>true</jk>, when we encounter the same object when serializing a tree, we set the value to <jk>null</jk>.
    * Otherwise, an exception is thrown.
    * 
    * <h5 class='section'>Notes:</h5>
    * <ul class='spaced-list'>
    *    <li>
    *       Checking for recursion can cause a small performance penalty.
    * </ul>
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Serializer#SERIALIZER_ignoreRecursions}
    * </ul>
    * 
    * @param value 
    *    The new value for this property.
    *    <br>The default is <jk>false</jk>.
    * @return This object (for method chaining).
    */
   public RestClientBuilder ignoreRecursions(boolean value) {
      return set(SERIALIZER_ignoreRecursions, value);
   }

   /**
    * Configuration property:  Ignore recursion errors.
    * 
    * <p>
    * Shortcut for calling <code>ignoreRecursions(<jk>true</jk>)</code>.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Serializer#SERIALIZER_ignoreRecursions}
    * </ul>
    * 
    * @return This object (for method chaining).
    */
   public RestClientBuilder ignoreRecursions() {
      return set(SERIALIZER_ignoreRecursions, true);
   }

   /**
    * Configuration property:  Initial depth.
    * 
    * <p>
    * The initial indentation level at the root.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Serializer#SERIALIZER_initialDepth}
    * </ul>
    * 
    * @param value 
    *    The new value for this property.
    *    <br>The default is <code>0</code>.
    * @return This object (for method chaining).
    */
   public RestClientBuilder initialDepth(int value) {
      return set(SERIALIZER_initialDepth, value);
   }

   /**
    * Configuration property:  Serializer listener.
    * 
    * <p>
    * Class used to listen for errors and warnings that occur during serialization.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Serializer#SERIALIZER_listener}
    * </ul>
    * 
    * @param value 
    *    The new value for this property.
    * @return This object (for method chaining).
    */
   public RestClientBuilder listenerS(Class<? extends SerializerListener> value) {
      return set(SERIALIZER_listener, value);
   }

   /**
    * Configuration property:  Max serialization depth.
    * 
    * <p>
    * Abort serialization if specified depth is reached in the POJO tree.
    * <br>If this depth is exceeded, an exception is thrown.
    * <br>This prevents stack overflows from occurring when trying to serialize models with recursive references.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Serializer#SERIALIZER_maxDepth}
    * </ul>
    * 
    * @param value 
    *    The new value for this property.
    *    <br>The default is <code>100</code>.
    * @return This object (for method chaining).
    */
   public RestClientBuilder maxDepth(int value) {
      return set(SERIALIZER_maxDepth, value);
   }

   /**
    * Configuration property:  Maximum indentation.
    * 
    * <p>
    * Specifies the maximum indentation level in the serialized document.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Serializer#SERIALIZER_maxIndent}
    * </ul>
    * 
    * @param value 
    *    The new value for this property.
    *    <br>The default is <code>100</code>.
    * @return This object (for method chaining).
    */
   public RestClientBuilder maxIndent(boolean value) {
      return set(SERIALIZER_maxIndent, value);
   }

   /**
    * Configuration property:  Quote character.
    * 
    * <p>
    * This is the character used for quoting attributes and values.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Serializer#SERIALIZER_quoteChar}
    * </ul>
    * 
    * @param value 
    *    The new value for this property.
    *    <br>The default is <js>'"'</js>.
    * @return This object (for method chaining).
    */
   public RestClientBuilder quoteChar(char value) {
      return set(SERIALIZER_quoteChar, value);
   }

   /**
    * Configuration property:  Quote character.
    * 
    * <p>
    * Shortcut for calling <code>quoteChar(<js>'\''</js>)</code>.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Serializer#SERIALIZER_quoteChar}
    * </ul>
    * 
    * @return This object (for method chaining).
    */
   public RestClientBuilder sq() {
      return set(SERIALIZER_quoteChar, '\'');
   }

   /**
    * Configuration property:  Sort arrays and collections alphabetically.
    * 
    * <p>
    * Copies and sorts the contents of arrays and collections before serializing them.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Serializer#SERIALIZER_sortCollections}
    * </ul>
    * 
    * @param value 
    *    The new value for this property.
    *    <br>The default is <jk>false</jk>.
    * @return This object (for method chaining).
    */
   public RestClientBuilder sortCollections(boolean value) {
      return set(SERIALIZER_sortCollections, value);
   }

   /**
    * Configuration property:  Sort arrays and collections alphabetically.
    * 
    * <p>
    * Shortcut for calling <code>sortCollections(<jk>true</jk>)</code>.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Serializer#SERIALIZER_sortCollections}
    * </ul>
    * 
    * @return This object (for method chaining).
    */
   public RestClientBuilder sortCollections() {
      return set(SERIALIZER_sortCollections, true);
   }

   /**
    * Sets the {@link Serializer#SERIALIZER_sortMaps} property on all serializers in this group.
    * 
    * <p>
    * Copies and sorts the contents of maps before serializing them.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Serializer#SERIALIZER_sortMaps}
    * </ul>
    * 
    * @param value The new value for this property.
    * @return This object (for method chaining).
    */
   public RestClientBuilder sortMaps(boolean value) {
      return set(SERIALIZER_sortMaps, value);
   }

   /**
    * Configuration property:  Sort maps alphabetically.
    * 
    * <p>
    * Shortcut for calling <code>sortMaps(<jk>true</jk>)</code>.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Serializer#SERIALIZER_sortMaps}
    * </ul>
    * 
    * @return This object (for method chaining).
    */
   public RestClientBuilder sortMaps() {
      return set(SERIALIZER_sortMaps, true);
   }

   /**
    * Configuration property:  Trim empty lists and arrays.
    * 
    * <p>
    * If <jk>true</jk>, empty list values will not be serialized to the output.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Serializer#SERIALIZER_trimEmptyCollections}
    * </ul>
    * 
    * @param value 
    *    The new value for this property.
    *    <br>The default is <jk>false</jk>.
    * @return This object (for method chaining).
    */
   public RestClientBuilder trimEmptyCollections(boolean value) {
      return set(SERIALIZER_trimEmptyCollections, value);
   }

   /**
    * Configuration property:  Trim empty lists and arrays.
    * 
    * <p>
    * Shortcut for calling <code>trimEmptyCollections(<jk>true</jk>)</code>.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Serializer#SERIALIZER_trimEmptyCollections}
    * </ul>
    * 
    * @return This object (for method chaining).
    */
   public RestClientBuilder trimEmptyCollections() {
      return set(SERIALIZER_trimEmptyCollections, true);
   }

   /**
    * Configuration property:  Trim empty maps.
    * 
    * <p>
    * If <jk>true</jk>, empty map values will not be serialized to the output.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Serializer#SERIALIZER_trimEmptyMaps}
    * </ul>
    * 
    * @param value 
    *    The new value for this property.
    *    <br>The default is <jk>false</jk>.
    * @return This object (for method chaining).
    */
   public RestClientBuilder trimEmptyMaps(boolean value) {
      return set(SERIALIZER_trimEmptyMaps, value);
   }

   /**
    * Configuration property:  Trim empty maps.
    * 
    * <p>
    * Shortcut for calling <code>trimEmptyMaps(<jk>true</jk>)</code>.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Serializer#SERIALIZER_trimEmptyMaps}
    * </ul>
    * 
    * @return This object (for method chaining).
    */
   public RestClientBuilder trimEmptyMaps() {
      return set(SERIALIZER_trimEmptyMaps, true);
   }

   /**
    * Configuration property:  Trim null bean property values.
    * 
    * <p>
    * If <jk>true</jk>, null bean values will not be serialized to the output.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Serializer#SERIALIZER_trimNullProperties}
    * </ul>
    * 
    * @param value 
    *    The new value for this property.
    *    <br>The default is <jk>true</jk>.
    * @return This object (for method chaining).
    */
   public RestClientBuilder trimNullProperties(boolean value) {
      return set(SERIALIZER_trimNullProperties, value);
   }

   /**
    * Configuration property:  Trim strings.
    * 
    * <p>
    * If <jk>true</jk>, string values will be trimmed of whitespace using {@link String#trim()} before being serialized.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Serializer#SERIALIZER_trimStrings}
    * </ul>
    * 
    * @param value 
    *    The new value for this property.
    *    <br>The default is <jk>false</jk>.
    * @return This object (for method chaining).
    */
   public RestClientBuilder trimStringsS(boolean value) {
      return set(SERIALIZER_trimStrings, value);
   }

   /**
    * Configuration property:  Trim strings.
    * 
    * <p>
    * Shortcut for calling <code>trimStrings(<jk>true</jk>)</code>.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Serializer#SERIALIZER_trimStrings}
    * </ul>
    * 
    * @return This object (for method chaining).
    */
   public RestClientBuilder trimStringsS() {
      return set(SERIALIZER_trimStrings, true);
   }

   /**
    * Configuration property:  URI context bean.
    * 
    * <p>
    * Bean used for resolution of URIs to absolute or root-relative form.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Serializer#SERIALIZER_uriContext}
    * </ul>
    * 
    * @param value The new value for this property.
    * @return This object (for method chaining).
    */
   public RestClientBuilder uriContext(UriContext value) {
      return set(SERIALIZER_uriContext, value);
   }

   /**
    * Configuration property:  URI relativity.
    * 
    * <p>
    * Defines what relative URIs are relative to when serializing URI/URL objects.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Serializer#SERIALIZER_uriRelativity}
    * </ul>
    * 
    * @param value 
    *    The new value for this property.
    *    <br>The default is {@link UriRelativity#RESOURCE}
    * @return This object (for method chaining).
    */
   public RestClientBuilder uriRelativity(UriRelativity value) {
      return set(SERIALIZER_uriRelativity, value);
   }

   /**
    * Configuration property:  URI resolution.
    * 
    * <p>
    * Defines the resolution level for URIs when serializing URI/URL objects.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Serializer#SERIALIZER_uriResolution}
    * </ul>
    * 
    * @param value 
    *    The new value for this property.
    *    <br>The default is {@link UriResolution#NONE}
    * @return This object (for method chaining).
    */
   public RestClientBuilder uriResolution(UriResolution value) {
      return set(SERIALIZER_uriResolution, value);
   }

   /**
    * Configuration property:  Use whitespace.
    * 
    * <p>
    * If <jk>true</jk>, newlines and indentation and spaces are added to the output to improve readability.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Serializer#SERIALIZER_useWhitespace}
    * </ul>
    * 
    * @param value 
    *    The new value for this property.
    *    <br>The default is <jk>false</jk>.
    * @return This object (for method chaining).
    */
   public RestClientBuilder useWhitespace(boolean value) {
      return set(SERIALIZER_useWhitespace, value);
   }
   
   /**
    * Configuration property:  Use whitespace.
    * 
    * <p>
    * Shortcut for calling <code>useWhitespace(<jk>true</jk>)</code>.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Serializer#SERIALIZER_useWhitespace}
    * </ul>
    * @return This object (for method chaining).
    */
   public RestClientBuilder useWhitespace() {
      return set(SERIALIZER_useWhitespace, true);
   }

   /**
    * Configuration property:  Use whitespace.
    * 
    * <p>
    * Shortcut for calling <code>useWhitespace(<jk>true</jk>)</code>.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Serializer#SERIALIZER_useWhitespace}
    * </ul>
    * 
    * @return This object (for method chaining).
    */
   public RestClientBuilder ws() {
      return set(SERIALIZER_useWhitespace, true);
   }

   /**
    * Configuration property:  Auto-close streams.
    * 
    * If <jk>true</jk>, <l>InputStreams</l> and <l>Readers</l> passed into parsers will be closed
    * after parsing is complete.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Parser#PARSER_autoCloseStreams}
    * </ul>
    * 
    * @param value 
    *    The new value for this property.
    *    <br>The default value is <jk>false</jk>.
    * @return This object (for method chaining).
    */
   public RestClientBuilder autoCloseStreams(boolean value) {
      return set(PARSER_autoCloseStreams, value);
   }

   /**
    * Configuration property:  Auto-close streams.
    * 
    * <p>
    * Shortcut for calling <code>autoCloseStreams(<jk>true</jk>)</code>.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Parser#PARSER_autoCloseStreams}
    * </ul>
    * 
    * @return This object (for method chaining).
    */
   public RestClientBuilder autoCloseStreams() {
      return set(PARSER_autoCloseStreams, true);
   }

   /**
    * Configuration property:  File charset.
    * 
    * <p>
    * The character set to use for reading <code>Files</code> from the file system.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Parser#PARSER_fileCharset}
    * </ul>
    * 
    * @param value 
    *    The new value for this property.
    *    <br>The default value is <js>"DEFAULT"</js> which causes the system default to be used.
    * @return This object (for method chaining).
    */
   public RestClientBuilder fileCharset(String value) {
      return set(PARSER_fileCharset, value);
   }

   /**
    * Configuration property:  Input stream charset.
    * 
    * <p>
    * The character set to use for converting <code>InputStreams</code> and byte arrays to readers.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Parser#PARSER_inputStreamCharset}
    * </ul>
    * 
    * @param value 
    *    The new value for this property.
    *    <br>The default value is <js>"UTF-8"</js>.
    * @return This object (for method chaining).
    */
   public RestClientBuilder inputStreamCharset(String value) {
      return set(PARSER_inputStreamCharset, value);
   }

   /**
    * Configuration property:  Parser listener.
    * 
    * <p>
    * Class used to listen for errors and warnings that occur during parsing.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Parser#PARSER_listener}
    * </ul>
    * 
    * @param value The new value for this property.
    * @return This object (for method chaining).
    */
   public RestClientBuilder listenerP(Class<? extends ParserListener> value) {
      return set(PARSER_listener, value);
   }

   /**
    * Configuration property:  Strict mode.
    * 
    * <p>
    * If <jk>true</jk>, strict mode for the parser is enabled.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Parser#PARSER_strict}
    * </ul>
    * 
    * @param value 
    *    The new value for this property.
    *    <br>The default value is <jk>false</jk>.
    * @return This object (for method chaining).
    */
   public RestClientBuilder strict(boolean value) {
      return set(PARSER_strict, value);
   }

   /**
    * Configuration property:  Strict mode.
    * 
    * <p>
    * Shortcut for calling <code>strict(<jk>true</jk>)</code>.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Parser#PARSER_strict}
    * </ul>
    * 
    * @return This object (for method chaining).
    */
   public RestClientBuilder strict() {
      return set(PARSER_strict, true);
   }

   /**
    * Configuration property:  Trim parsed strings.
    * 
    * <p>
    * If <jk>true</jk>, string values will be trimmed of whitespace using {@link String#trim()} before being added to
    * the POJO.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Parser#PARSER_trimStrings}
    * </ul>
    * 
    * @param value 
    *    The new value for this property.
    *    <br>The default value is <jk>false</jk>.
    * @return This object (for method chaining).
    */
   public RestClientBuilder trimStringsP(boolean value) {
      return set(PARSER_trimStrings, value);
   }

   /**
    * Configuration property:  Trim parsed strings.
    * 
    * <p>
    * Shortcut for calling <code>trimStrings(<jk>true</jk>)</code>.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Parser#PARSER_trimStrings}
    * </ul>
    * 
    * @return This object (for method chaining).
    */
   public RestClientBuilder trimStringsP() {
      return set(PARSER_trimStrings, true);
   }

   /**
    * Configuration property:  Unbuffered.
    * 
    * If <jk>true</jk>, don't use internal buffering during parsing.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Parser#PARSER_unbuffered}
    * </ul>
    * 
    * @param value 
    *    The new value for this property.
    *    <br>The default value is <jk>false</jk>.
    * @return This object (for method chaining).
    */
   public RestClientBuilder unbuffered(boolean value) {
      return set(PARSER_unbuffered, value);
   }

   /**
    * Configuration property:  Unbuffered.
    * 
    * <p>
    * Shortcut for calling <code>unbuffered(<jk>true</jk>)</code>.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link Parser#PARSER_unbuffered}
    * </ul>
    * 
    * @return This object (for method chaining).
    */
   public RestClientBuilder unbuffered() {
      return set(PARSER_unbuffered, true);
   }

   /**
    * Configuration property:  Parameter format.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link UonSerializer#UON_paramFormat}
    * </ul>
    * 
    * @param value The new value for this property.
    * @return This object (for method chaining).
    */
   public RestClientBuilder paramFormat(String value) {
      return set(UON_paramFormat, value);
   }

   /**
    * Configuration property:  Parameter format.
    * 
    * <h5 class='section'>See Also:</h5>
    * <ul>
    *    <li class='jf'>{@link UonSerializer#UON_paramFormat}
    * </ul>
    * 
    * @return This object (for method chaining).
    */
   public RestClientBuilder paramFormatPlain() {
      return set(UON_paramFormat, "PLAINTEXT");
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder beansRequireDefaultConstructor(boolean value) {
      super.beansRequireDefaultConstructor(value);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder beansRequireDefaultConstructor() {
      super.beansRequireDefaultConstructor();
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder beansRequireSerializable(boolean value) {
      super.beansRequireSerializable(value);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder beansRequireSerializable() {
      super.beansRequireSerializable();
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder beansRequireSettersForGetters(boolean value) {
      super.beansRequireSettersForGetters(value);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder beansRequireSettersForGetters() {
      super.beansRequireSettersForGetters();
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder beansRequireSomeProperties(boolean value) {
      super.beansRequireSomeProperties(value);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder beanMapPutReturnsOldValue(boolean value) {
      super.beanMapPutReturnsOldValue(value);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder beanMapPutReturnsOldValue() {
      super.beanMapPutReturnsOldValue();
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder beanConstructorVisibility(Visibility value) {
      super.beanConstructorVisibility(value);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder beanClassVisibility(Visibility value) {
      super.beanClassVisibility(value);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder beanFieldVisibility(Visibility value) {
      super.beanFieldVisibility(value);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder beanMethodVisibility(Visibility value) {
      super.beanMethodVisibility(value);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder useJavaBeanIntrospector(boolean value) {
      super.useJavaBeanIntrospector(value);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder useJavaBeanIntrospector() {
      super.useJavaBeanIntrospector();
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder useInterfaceProxies(boolean value) {
      super.useInterfaceProxies(value);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder ignoreUnknownBeanProperties(boolean value) {
      super.ignoreUnknownBeanProperties(value);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder ignoreUnknownBeanProperties() {
      super.ignoreUnknownBeanProperties();
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder ignoreUnknownNullBeanProperties(boolean value) {
      super.ignoreUnknownNullBeanProperties(value);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder ignorePropertiesWithoutSetters(boolean value) {
      super.ignorePropertiesWithoutSetters(value);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder ignoreInvocationExceptionsOnGetters(boolean value) {
      super.ignoreInvocationExceptionsOnGetters(value);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder ignoreInvocationExceptionsOnGetters() {
      super.ignoreInvocationExceptionsOnGetters();
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder ignoreInvocationExceptionsOnSetters(boolean value) {
      super.ignoreInvocationExceptionsOnSetters(value);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder ignoreInvocationExceptionsOnSetters() {
      super.ignoreInvocationExceptionsOnSetters();
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder sortProperties(boolean value) {
      super.sortProperties(value);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder sortProperties() {
      super.sortProperties();
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder notBeanPackages(Object...values) {
      super.notBeanPackages(values);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder notBeanPackages(String...values) {
      super.notBeanPackages(values);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder notBeanPackages(boolean append, Object...values) {
      super.notBeanPackages(append, values);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder notBeanPackagesRemove(Object...values) {
      super.notBeanPackagesRemove(values);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder notBeanClasses(Object...values) {
      super.notBeanClasses(values);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder notBeanClasses(Class<?>...values) {
      super.notBeanClasses(values);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder notBeanClasses(boolean append, Object...values) {
      super.notBeanClasses(append, values);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder notBeanClassesRemove(Object...values) {
      super.notBeanClassesRemove(values);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder beanFilters(Object...values) {
      super.beanFilters(values);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder beanFilters(Class<?>...values) {
      super.beanFilters(values);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder beanFilters(boolean append, Object...values) {
      super.beanFilters(append, values);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder beanFiltersRemove(Object...values) {
      super.beanFiltersRemove(values);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder pojoSwaps(Object...values) {
      super.pojoSwaps(values);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder pojoSwaps(Class<?>...values) {
      super.pojoSwaps(values);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder pojoSwaps(boolean append, Object...values) {
      super.pojoSwaps(append, values);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder pojoSwapsRemove(Object...values) {
      super.pojoSwapsRemove(values);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder implClasses(Map<String,Class<?>> values) {
      super.implClasses(values);
      return this;
   }

   @Override /* BeanContextBuilder */
   public <T> RestClientBuilder implClass(Class<T> interfaceClass, Class<? extends T> implClass) {
      super.implClass(interfaceClass, implClass);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder beanDictionary(Object...values) {
      super.beanDictionary(values);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder beanDictionary(Class<?>...values) {
      super.beanDictionary(values);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder beanDictionary(boolean append, Object...values) {
      super.beanDictionary(append, values);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder beanDictionaryRemove(Object...values) {
      super.beanDictionaryRemove(values);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder beanTypePropertyName(String value) {
      super.beanTypePropertyName(value);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder locale(Locale value) {
      super.locale(value);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder timeZone(TimeZone value) {
      super.timeZone(value);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder mediaType(MediaType value) {
      super.mediaType(value);
      return this;
   }

   @Override /* BeanContextBuilder */
   public RestClientBuilder debug() {
      super.debug();
      set(RESTCLIENT_debug, true);
      header("Debug", true);
      return this;
   }

   @Override /* ContextBuilder */
   public RestClientBuilder set(String name, Object value) {
      super.set(name, value);
      return this;
   }

   @Override /* ContextBuilder */
   public RestClientBuilder set(boolean append, String name, Object value) {
      super.set(append, name, value);
      return this;
   }

   @Override /* ContextBuilder */
   public RestClientBuilder set(Map<String,Object> properties) {
      super.set(properties);
      return this;
   }

   @Override /* ContextBuilder */
   public RestClientBuilder add(Map<String,Object> properties) {
      super.add(properties);
      return this;
   }

   @Override /* ContextBuilder */
   public RestClientBuilder addTo(String name, Object value) {
      super.addTo(name, value);
      return this;
   }

   @Override /* ContextBuilder */
   public RestClientBuilder addTo(String name, String key, Object value) {
      super.addTo(name, key, value);
      return this;
   }

   @Override /* ContextBuilder */
   public RestClientBuilder removeFrom(String name, Object value) {
      super.removeFrom(name, value);
      return this;
   }

   @Override /* ContextBuilder */
   public RestClientBuilder apply(PropertyStore copyFrom) {
      super.apply(copyFrom);
      return this;
   }


   //------------------------------------------------------------------------------------------------
   // Passthrough methods for HttpClientBuilder.
   //------------------------------------------------------------------------------------------------

   /**
    * @param redirectStrategy
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setRedirectStrategy(RedirectStrategy)
    */
   public RestClientBuilder setRedirectStrategy(RedirectStrategy redirectStrategy) {
      httpClientBuilder.setRedirectStrategy(redirectStrategy);
      return this;
   }

   /**
    * @param cookieSpecRegistry
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setDefaultCookieSpecRegistry(Lookup)
    */
   public RestClientBuilder setDefaultCookieSpecRegistry(Lookup<CookieSpecProvider> cookieSpecRegistry) {
      httpClientBuilder.setDefaultCookieSpecRegistry(cookieSpecRegistry);
      return this;
   }

   /**
    * @param requestExec
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setRequestExecutor(HttpRequestExecutor)
    */
   public RestClientBuilder setRequestExecutor(HttpRequestExecutor requestExec) {
      httpClientBuilder.setRequestExecutor(requestExec);
      return this;
   }

   /**
    * @param hostnameVerifier
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setSSLHostnameVerifier(HostnameVerifier)
    */
   public RestClientBuilder setSSLHostnameVerifier(HostnameVerifier hostnameVerifier) {
      httpClientBuilder.setSSLHostnameVerifier(hostnameVerifier);
      return this;
   }

   /**
    * @param publicSuffixMatcher
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setPublicSuffixMatcher(PublicSuffixMatcher)
    */
   public RestClientBuilder setPublicSuffixMatcher(PublicSuffixMatcher publicSuffixMatcher) {
      httpClientBuilder.setPublicSuffixMatcher(publicSuffixMatcher);
      return this;
   }

   /**
    * @param sslContext
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setSSLContext(SSLContext)
    */
   public RestClientBuilder setSSLContext(SSLContext sslContext) {
      httpClientBuilder.setSSLContext(sslContext);
      return this;
   }

   /**
    * @param sslSocketFactory
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setSSLSocketFactory(LayeredConnectionSocketFactory)
    */
   public RestClientBuilder setSSLSocketFactory(LayeredConnectionSocketFactory sslSocketFactory) {
      httpClientBuilder.setSSLSocketFactory(sslSocketFactory);
      return this;
   }

   /**
    * @param maxConnTotal
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setMaxConnTotal(int)
    */
   public RestClientBuilder setMaxConnTotal(int maxConnTotal) {
      httpClientBuilder.setMaxConnTotal(maxConnTotal);
      return this;
   }

   /**
    * @param maxConnPerRoute
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setMaxConnPerRoute(int)
    */
   public RestClientBuilder setMaxConnPerRoute(int maxConnPerRoute) {
      httpClientBuilder.setMaxConnPerRoute(maxConnPerRoute);
      return this;
   }

   /**
    * @param config
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setDefaultSocketConfig(SocketConfig)
    */
   public RestClientBuilder setDefaultSocketConfig(SocketConfig config) {
      httpClientBuilder.setDefaultSocketConfig(config);
      return this;
   }

   /**
    * @param config
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setDefaultConnectionConfig(ConnectionConfig)
    */
   public RestClientBuilder setDefaultConnectionConfig(ConnectionConfig config) {
      httpClientBuilder.setDefaultConnectionConfig(config);
      return this;
   }

   /**
    * @param connTimeToLive
    * @param connTimeToLiveTimeUnit
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setConnectionTimeToLive(long,TimeUnit)
    */
   public RestClientBuilder setConnectionTimeToLive(long connTimeToLive, TimeUnit connTimeToLiveTimeUnit) {
      httpClientBuilder.setConnectionTimeToLive(connTimeToLive, connTimeToLiveTimeUnit);
      return this;
   }

   /**
    * @param connManager
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setConnectionManager(HttpClientConnectionManager)
    */
   public RestClientBuilder setConnectionManager(HttpClientConnectionManager connManager) {
      this.httpClientConnectionManager = connManager;
      httpClientBuilder.setConnectionManager(connManager);
      return this;
   }

   /**
    * @param shared
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setConnectionManagerShared(boolean)
    */
   public RestClientBuilder setConnectionManagerShared(boolean shared) {
      httpClientBuilder.setConnectionManagerShared(shared);
      return this;
   }

   /**
    * @param reuseStrategy
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setConnectionReuseStrategy(ConnectionReuseStrategy)
    */
   public RestClientBuilder setConnectionReuseStrategy(ConnectionReuseStrategy reuseStrategy) {
      httpClientBuilder.setConnectionReuseStrategy(reuseStrategy);
      return this;
   }

   /**
    * @param keepAliveStrategy
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setKeepAliveStrategy(ConnectionKeepAliveStrategy)
    */
   public RestClientBuilder setKeepAliveStrategy(ConnectionKeepAliveStrategy keepAliveStrategy) {
      httpClientBuilder.setKeepAliveStrategy(keepAliveStrategy);
      return this;
   }

   /**
    * @param targetAuthStrategy
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setTargetAuthenticationStrategy(AuthenticationStrategy)
    */
   public RestClientBuilder setTargetAuthenticationStrategy(AuthenticationStrategy targetAuthStrategy) {
      httpClientBuilder.setTargetAuthenticationStrategy(targetAuthStrategy);
      return this;
   }

   /**
    * @param proxyAuthStrategy
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setProxyAuthenticationStrategy(AuthenticationStrategy)
    */
   public RestClientBuilder setProxyAuthenticationStrategy(AuthenticationStrategy proxyAuthStrategy) {
      httpClientBuilder.setProxyAuthenticationStrategy(proxyAuthStrategy);
      return this;
   }

   /**
    * @param userTokenHandler
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setUserTokenHandler(UserTokenHandler)
    */
   public RestClientBuilder setUserTokenHandler(UserTokenHandler userTokenHandler) {
      httpClientBuilder.setUserTokenHandler(userTokenHandler);
      return this;
   }

   /**
    * @return This object (for method chaining).
    * @see HttpClientBuilder#disableConnectionState()
    */
   public RestClientBuilder disableConnectionState() {
      httpClientBuilder.disableConnectionState();
      return this;
   }

   /**
    * @param schemePortResolver
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setSchemePortResolver(SchemePortResolver)
    */
   public RestClientBuilder setSchemePortResolver(SchemePortResolver schemePortResolver) {
      httpClientBuilder.setSchemePortResolver(schemePortResolver);
      return this;
   }

   /**
    * @param userAgent
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setUserAgent(String)
    */
   public RestClientBuilder setUserAgent(String userAgent) {
      httpClientBuilder.setUserAgent(userAgent);
      return this;
   }

   /**
    * @param defaultHeaders
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setDefaultHeaders(Collection)
    */
   public RestClientBuilder setDefaultHeaders(Collection<? extends Header> defaultHeaders) {
      httpClientBuilder.setDefaultHeaders(defaultHeaders);
      return this;
   }

   /**
    * @param itcp
    * @return This object (for method chaining).
    * @see HttpClientBuilder#addInterceptorFirst(HttpResponseInterceptor)
    */
   public RestClientBuilder addInterceptorFirst(HttpResponseInterceptor itcp) {
      httpClientBuilder.addInterceptorFirst(itcp);
      return this;
   }

   /**
    * @param itcp
    * @return This object (for method chaining).
    * @see HttpClientBuilder#addInterceptorLast(HttpResponseInterceptor)
    */
   public RestClientBuilder addInterceptorLast(HttpResponseInterceptor itcp) {
      httpClientBuilder.addInterceptorLast(itcp);
      return this;
   }

   /**
    * @param itcp
    * @return This object (for method chaining).
    * @see HttpClientBuilder#addInterceptorFirst(HttpRequestInterceptor)
    */
   public RestClientBuilder addInterceptorFirst(HttpRequestInterceptor itcp) {
      httpClientBuilder.addInterceptorFirst(itcp);
      return this;
   }

   /**
    * @param itcp
    * @return This object (for method chaining).
    * @see HttpClientBuilder#addInterceptorLast(HttpRequestInterceptor)
    */
   public RestClientBuilder addInterceptorLast(HttpRequestInterceptor itcp) {
      httpClientBuilder.addInterceptorLast(itcp);
      return this;
   }

   /**
    * @return This object (for method chaining).
    * @see HttpClientBuilder#disableCookieManagement()
    */
   public RestClientBuilder disableCookieManagement() {
      httpClientBuilder.disableCookieManagement();
      return this;
   }

   /**
    * @return This object (for method chaining).
    * @see HttpClientBuilder#disableContentCompression()
    */
   public RestClientBuilder disableContentCompression() {
      httpClientBuilder.disableContentCompression();
      return this;
   }

   /**
    * @return This object (for method chaining).
    * @see HttpClientBuilder#disableAuthCaching()
    */
   public RestClientBuilder disableAuthCaching() {
      httpClientBuilder.disableAuthCaching();
      return this;
   }

   /**
    * @param httpprocessor
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setHttpProcessor(HttpProcessor)
    */
   public RestClientBuilder setHttpProcessor(HttpProcessor httpprocessor) {
      httpClientBuilder.setHttpProcessor(httpprocessor);
      return this;
   }

   /**
    * @param retryHandler
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setRetryHandler(HttpRequestRetryHandler)
    */
   public RestClientBuilder setRetryHandler(HttpRequestRetryHandler retryHandler) {
      httpClientBuilder.setRetryHandler(retryHandler);
      return this;
   }

   /**
    * @return This object (for method chaining).
    * @see HttpClientBuilder#disableAutomaticRetries()
    */
   public RestClientBuilder disableAutomaticRetries() {
      httpClientBuilder.disableAutomaticRetries();
      return this;
   }

   /**
    * @param proxy
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setProxy(HttpHost)
    */
   public RestClientBuilder setProxy(HttpHost proxy) {
      httpClientBuilder.setProxy(proxy);
      return this;
   }

   /**
    * @param routePlanner
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setRoutePlanner(HttpRoutePlanner)
    */
   public RestClientBuilder setRoutePlanner(HttpRoutePlanner routePlanner) {
      httpClientBuilder.setRoutePlanner(routePlanner);
      return this;
   }

   /**
    * @return This object (for method chaining).
    * @see HttpClientBuilder#disableRedirectHandling()
    */
   public RestClientBuilder disableRedirectHandling() {
      httpClientBuilder.disableRedirectHandling();
      return this;
   }

   /**
    * @param connectionBackoffStrategy
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setConnectionBackoffStrategy(ConnectionBackoffStrategy)
    */
   public RestClientBuilder setConnectionBackoffStrategy(ConnectionBackoffStrategy connectionBackoffStrategy) {
      httpClientBuilder.setConnectionBackoffStrategy(connectionBackoffStrategy);
      return this;
   }

   /**
    * @param backoffManager
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setBackoffManager(BackoffManager)
    */
   public RestClientBuilder setBackoffManager(BackoffManager backoffManager) {
      httpClientBuilder.setBackoffManager(backoffManager);
      return this;
   }

   /**
    * @param serviceUnavailStrategy
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setServiceUnavailableRetryStrategy(ServiceUnavailableRetryStrategy)
    */
   public RestClientBuilder setServiceUnavailableRetryStrategy(ServiceUnavailableRetryStrategy serviceUnavailStrategy) {
      httpClientBuilder.setServiceUnavailableRetryStrategy(serviceUnavailStrategy);
      return this;
   }

   /**
    * @param cookieStore
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setDefaultCookieStore(CookieStore)
    */
   public RestClientBuilder setDefaultCookieStore(CookieStore cookieStore) {
      httpClientBuilder.setDefaultCookieStore(cookieStore);
      return this;
   }

   /**
    * @param credentialsProvider
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setDefaultCredentialsProvider(CredentialsProvider)
    */
   public RestClientBuilder setDefaultCredentialsProvider(CredentialsProvider credentialsProvider) {
      httpClientBuilder.setDefaultCredentialsProvider(credentialsProvider);
      return this;
   }

   /**
    * @param authSchemeRegistry
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setDefaultAuthSchemeRegistry(Lookup)
    */
   public RestClientBuilder setDefaultAuthSchemeRegistry(Lookup<AuthSchemeProvider> authSchemeRegistry) {
      httpClientBuilder.setDefaultAuthSchemeRegistry(authSchemeRegistry);
      return this;
   }

   /**
    * @param contentDecoderMap
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setContentDecoderRegistry(Map)
    */
   public RestClientBuilder setContentDecoderRegistry(Map<String,InputStreamFactory> contentDecoderMap) {
      httpClientBuilder.setContentDecoderRegistry(contentDecoderMap);
      return this;
   }

   /**
    * @param config
    * @return This object (for method chaining).
    * @see HttpClientBuilder#setDefaultRequestConfig(RequestConfig)
    */
   public RestClientBuilder setDefaultRequestConfig(RequestConfig config) {
      httpClientBuilder.setDefaultRequestConfig(config);
      return this;
   }

   /**
    * @return This object (for method chaining).
    * @see HttpClientBuilder#useSystemProperties()
    */
   public RestClientBuilder useSystemProperties() {
      httpClientBuilder.useSystemProperties();
      return this;
   }

   /**
    * @return This object (for method chaining).
    * @see HttpClientBuilder#evictExpiredConnections()
    */
   public RestClientBuilder evictExpiredConnections() {
      httpClientBuilder.evictExpiredConnections();
      return this;
   }

   /**
    * @param maxIdleTime
    * @param maxIdleTimeUnit
    * @return This object (for method chaining).
    * @see HttpClientBuilder#evictIdleConnections(long,TimeUnit)
    */
   public RestClientBuilder evictIdleConnections(long maxIdleTime, TimeUnit maxIdleTimeUnit) {
      httpClientBuilder.evictIdleConnections(maxIdleTime, maxIdleTimeUnit);
      return this;
   }
}