001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.juneau.microservice.console;
018
019import static org.apache.juneau.commons.utils.Utils.*;
020
021import java.io.*;
022import java.util.*;
023
024import org.apache.juneau.collections.*;
025import org.apache.juneau.cp.*;
026import org.apache.juneau.microservice.*;
027
028/**
029 * Implements the 'config' console command to get or set configuration.
030 *
031 * <h5 class='section'>See Also:</h5><ul>
032 *    <li class='link'><a class="doclink" href="https://juneau.apache.org/docs/topics/JuneauMicroserviceCoreBasics">juneau-microservice-core Basics</a>
033 * </ul>
034 */
035public class ConfigCommand extends ConsoleCommand {
036
037   private final Messages mb = Messages.of(ConfigCommand.class, "Messages");
038
039   @Override /* Overridden from ConsoleCommand */
040   public boolean execute(Scanner in, PrintWriter out, Args args) {
041      var conf = Microservice.getInstance().getConfig();
042      if (args.size() > 2) {
043         var option = args.getArg(1);
044         var key = args.getArg(2);
045         if (option.equals("get")) {
046            // config get <key>
047            if (args.size() == 3) {
048               var val = conf.get(key).orElse(null);
049               if (nn(val))
050                  out.println(val);
051               else
052                  out.println(mb.getString("KeyNotFound", key));
053            } else {
054               out.println(mb.getString("TooManyArguments"));
055            }
056         } else if (option.equals("set")) {
057            // config set <key> <value>
058            if (args.size() == 4) {
059               conf.set(key, args.getArg(3));
060               out.println(mb.getString("ConfigSet"));
061            } else if (args.size() < 4) {
062               out.println(mb.getString("InvalidArguments"));
063            } else {
064               out.println(mb.getString("TooManyArguments"));
065            }
066         } else if (option.equals("remove")) {
067            // config remove <key>
068            if (args.size() == 3) {
069               if (conf.get(key).isPresent()) {
070                  conf.remove(key);
071                  out.println(mb.getString("ConfigRemove", key));
072               } else {
073                  out.println(mb.getString("KeyNotFound", key));
074               }
075            } else {
076               out.println(mb.getString("TooManyArguments"));
077            }
078         } else {
079            out.println(mb.getString("InvalidArguments"));
080         }
081      } else {
082         out.println(mb.getString("InvalidArguments"));
083      }
084      return false;
085   }
086
087   @Override /* Overridden from ConsoleCommand */
088   public String getDescription() { return mb.getString("description"); }
089
090   @Override /* Overridden from ConsoleCommand */
091   public String getInfo() { return mb.getString("info"); }
092
093   @Override /* Overridden from ConsoleCommand */
094   public String getName() { return "config"; }
095
096   @Override /* Overridden from ConsoleCommand */
097   public String getSynopsis() { return "config [get|set]"; }
098}