Line data    Source code

       1             : // Copyright (C) 2015 The Android Open Source Project
       2             : //
       3             : // Licensed under the Apache License, Version 2.0 (the "License");
       4             : // you may not use this file except in compliance with the License.
       5             : // You may obtain a copy of the License at
       6             : //
       7             : // http://www.apache.org/licenses/LICENSE-2.0
       8             : //
       9             : // Unless required by applicable law or agreed to in writing, software
      10             : // distributed under the License is distributed on an "AS IS" BASIS,
      11             : // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      12             : // See the License for the specific language governing permissions and
      13             : // limitations under the License.
      14             : 
      15             : package com.google.gerrit.server.extensions.events;
      16             : 
      17             : import com.google.gerrit.common.UsedAt;
      18             : import com.google.gerrit.extensions.events.PluginEventListener;
      19             : import com.google.gerrit.server.plugincontext.PluginSetContext;
      20             : import com.google.inject.Inject;
      21             : import com.google.inject.Singleton;
      22             : 
      23             : /** Helper class to let plugins fire a plugin-specific event. */
      24             : @Singleton
      25             : @UsedAt(UsedAt.Project.PLUGINS_ALL)
      26             : public class PluginEvent {
      27             :   private final PluginSetContext<PluginEventListener> listeners;
      28             : 
      29             :   @Inject
      30           0 :   PluginEvent(PluginSetContext<PluginEventListener> listeners) {
      31           0 :     this.listeners = listeners;
      32           0 :   }
      33             : 
      34             :   public void fire(String pluginName, String type, String data) {
      35           0 :     if (!listeners.iterator().hasNext()) {
      36           0 :       return;
      37             :     }
      38           0 :     Event e = new Event(pluginName, type, data);
      39           0 :     listeners.runEach(l -> l.onPluginEvent(e));
      40           0 :   }
      41             : 
      42             :   /** Event to be fired by plugins. */
      43             :   private static class Event extends AbstractNoNotifyEvent implements PluginEventListener.Event {
      44             :     private final String pluginName;
      45             :     private final String type;
      46             :     private final String data;
      47             : 
      48           0 :     Event(String pluginName, String type, String data) {
      49           0 :       this.pluginName = pluginName;
      50           0 :       this.type = type;
      51           0 :       this.data = data;
      52           0 :     }
      53             : 
      54             :     @Override
      55             :     public String pluginName() {
      56           0 :       return pluginName;
      57             :     }
      58             : 
      59             :     @Override
      60             :     public String getType() {
      61           0 :       return type;
      62             :     }
      63             : 
      64             :     @Override
      65             :     public String getData() {
      66           0 :       return data;
      67             :     }
      68             :   }
      69             : }