/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file 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
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.juneau.json.annotation;

import static java.lang.annotation.ElementType.*;
import static java.lang.annotation.RetentionPolicy.*;

import java.lang.annotation.*;

import org.apache.juneau.annotation.*;
import org.apache.juneau.json.*;
import org.apache.juneau.serializer.*;

/**
 * Annotation for specifying config properties defined in {@link JsonSerializer} and {@link JsonParser}.
 *
 * <p>
 * Used primarily for specifying bean configuration properties on REST classes and methods.
 *
 * <h5 class='section'>See Also:</h5><ul>
 *    <li class='link'><a class="doclink" href="https://juneau.apache.org/docs/topics/JsonBasics">JSON Basics</a>
 * </ul>
 */
@Target({ TYPE, METHOD })
@Retention(RUNTIME)
@Inherited
@ContextApply({ JsonConfigAnnotation.SerializerApply.class, JsonConfigAnnotation.ParserApply.class })
public @interface JsonConfig {

   /**
    * Add <js>"_type"</js> properties when needed.
    *
    * <p>
    * If <js>"true"</js>, then <js>"_type"</js> properties will be added to beans if their type cannot be inferred
    * through reflection.
    *
    * <p>
    * When present, this value overrides the {@link org.apache.juneau.serializer.Serializer.Builder#addBeanTypes()} setting and is
    * provided to customize the behavior of specific serializers in a {@link SerializerSet}.
    *
    * <ul class='values'>
    *    <li><js>"true"</js>
    *    <li><js>"false"</js> (default)
    * </ul>
    *
    * <h5 class='section'>Notes:</h5><ul>
    *    <li class='note'>
    *       Supports <a class="doclink" href="https://juneau.apache.org/docs/topics/DefaultVarResolver">VarResolver.DEFAULT</a> (e.g. <js>"$C{myConfigVar}"</js>).
    * </ul>
    *
    * <h5 class='section'>See Also:</h5><ul>
    *    <li class='jm'>{@link org.apache.juneau.json.JsonSerializer.Builder#addBeanTypesJson()}
    * </ul>
    *
    * @return The annotation value.
    */
   String addBeanTypes() default "";

   /**
    * Prefix solidus <js>'/'</js> characters with escapes.
    *
    * <p>
    * If <js>"true"</js>, solidus (e.g. slash) characters should be escaped.
    * The JSON specification allows for either format.
    * <br>However, if you're embedding JSON in an HTML script tag, this setting prevents confusion when trying to serialize
    * <xt>&lt;\/script&gt;</xt>.
    *
    * <ul class='values'>
    *    <li><js>"true"</js>
    *    <li><js>"false"</js> (default)
    * </ul>
    *
    * <h5 class='section'>Notes:</h5><ul>
    *    <li class='note'>
    *       Supports <a class="doclink" href="https://juneau.apache.org/docs/topics/DefaultVarResolver">VarResolver.DEFAULT</a> (e.g. <js>"$C{myConfigVar}"</js>).
    * </ul>
    *
    * <h5 class='section'>See Also:</h5><ul>
    *    <li class='jm'>{@link org.apache.juneau.json.JsonSerializer.Builder#escapeSolidus()}
    * </ul>
    *
    * @return The annotation value.
    */
   String escapeSolidus() default "";

   /**
    * Optional rank for this config.
    *
    * <p>
    * Can be used to override default ordering and application of config annotations.
    *
    * @return The annotation value.
    */
   int rank() default 0;

   /**
    * Simple JSON attribute mode.
    *
    * <p>
    * If <js>"true"</js>, JSON attribute names will only be quoted when necessary.
    * <br>Otherwise, they are always quoted.
    *
    * <p>
    * Attributes do not need to be quoted when they conform to the following:
    * <ol class='spaced-list'>
    *    <li>They start with an ASCII character or <js>'_'</js>.
    *    <li>They contain only ASCII characters or numbers or <js>'_'</js>.
    *    <li>They are not one of the following reserved words:
    *       <p class='bcode'>
    *    arguments, break, case, catch, class, const, continue, debugger, default,
    *    delete, do, else, enum, eval, export, extends, false, finally, for, function,
    *    if, implements, import, in, instanceof, interface, let, new, null, package,
    *    private, protected, public, return, static, super, switch, this, throw,
    *    true, try, typeof, var, void, while, with, undefined, yield
    *       </p>
    * </ol>
    *
    * <ul class='values'>
    *    <li><js>"true"</js>
    *    <li><js>"false"</js> (default)
    * </ul>
    *
    * <h5 class='section'>Notes:</h5><ul>
    *    <li class='note'>
    *       Supports <a class="doclink" href="https://juneau.apache.org/docs/topics/DefaultVarResolver">VarResolver.DEFAULT</a> (e.g. <js>"$C{myConfigVar}"</js>).
    * </ul>
    *
    * <h5 class='section'>See Also:</h5><ul>
    *    <li class='jm'>{@link org.apache.juneau.json.JsonSerializer.Builder#simpleAttrs()}
    * </ul>
    *
    * @return The annotation value.
    */
   String simpleAttrs() default "";

   /**
    * Validate end.
    *
    * <p>
    * If <js>"true"</js>, after parsing a POJO from the input, verifies that the remaining input in
    * the stream consists of only comments or whitespace.
    *
    * <ul class='values'>
    *    <li><js>"true"</js>
    *    <li><js>"false"</js> (default)
    * </ul>
    *
    * <h5 class='section'>Notes:</h5><ul>
    *    <li class='note'>
    *       Supports <a class="doclink" href="https://juneau.apache.org/docs/topics/DefaultVarResolver">VarResolver.DEFAULT</a> (e.g. <js>"$C{myConfigVar}"</js>).
    * </ul>
    *
    * <h5 class='section'>See Also:</h5><ul>
    *    <li class='jm'>{@link org.apache.juneau.json.JsonParser.Builder#validateEnd()}
    * </ul>
    *
    * @return The annotation value.
    */
   String validateEnd() default "";
}