Line data    Source code

       1             : // Copyright (C) 2014 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.events;
      16             : 
      17             : import com.google.common.collect.ImmutableMap;
      18             : import java.util.HashMap;
      19             : import java.util.Map;
      20             : 
      21             : /** Class for registering event types */
      22           0 : public class EventTypes {
      23           3 :   private static final Map<String, Class<?>> typesByString = new HashMap<>();
      24             : 
      25             :   static {
      26           3 :     register(AssigneeChangedEvent.TYPE, AssigneeChangedEvent.class);
      27           3 :     register(ChangeAbandonedEvent.TYPE, ChangeAbandonedEvent.class);
      28           3 :     register(ChangeDeletedEvent.TYPE, ChangeDeletedEvent.class);
      29           3 :     register(ChangeMergedEvent.TYPE, ChangeMergedEvent.class);
      30           3 :     register(ChangeRestoredEvent.TYPE, ChangeRestoredEvent.class);
      31           3 :     register(CommentAddedEvent.TYPE, CommentAddedEvent.class);
      32           3 :     register(CommitReceivedEvent.TYPE, CommitReceivedEvent.class);
      33           3 :     register(HashtagsChangedEvent.TYPE, HashtagsChangedEvent.class);
      34           3 :     register(PatchSetCreatedEvent.TYPE, PatchSetCreatedEvent.class);
      35           3 :     register(PrivateStateChangedEvent.TYPE, PrivateStateChangedEvent.class);
      36           3 :     register(ProjectCreatedEvent.TYPE, ProjectCreatedEvent.class);
      37           3 :     register(RefReceivedEvent.TYPE, RefReceivedEvent.class);
      38           3 :     register(RefUpdatedEvent.TYPE, RefUpdatedEvent.class);
      39           3 :     register(ReviewerAddedEvent.TYPE, ReviewerAddedEvent.class);
      40           3 :     register(ReviewerDeletedEvent.TYPE, ReviewerDeletedEvent.class);
      41           3 :     register(TopicChangedEvent.TYPE, TopicChangedEvent.class);
      42           3 :     register(VoteDeletedEvent.TYPE, VoteDeletedEvent.class);
      43           3 :     register(WorkInProgressStateChangedEvent.TYPE, WorkInProgressStateChangedEvent.class);
      44           3 :   }
      45             : 
      46             :   /**
      47             :    * Register an event type and associated class.
      48             :    *
      49             :    * @param eventType The event type to register.
      50             :    * @param eventClass The event class to register.
      51             :    */
      52             :   public static void register(String eventType, Class<? extends Event> eventClass) {
      53           3 :     typesByString.put(eventType, eventClass);
      54           3 :   }
      55             : 
      56             :   /**
      57             :    * Get the class for an event type.
      58             :    *
      59             :    * @param type The type.
      60             :    * @return The event class, or null if no class is registered with the given type
      61             :    */
      62             :   public static Class<?> getClass(String type) {
      63           1 :     return typesByString.get(type);
      64             :   }
      65             : 
      66             :   /**
      67             :    * Get a copy of all currently registered events.
      68             :    *
      69             :    * <p>The key is the one given to the evenType parameter of the {@link #register} method.
      70             :    *
      71             :    * @return ImmutableMap of event types, Event classes.
      72             :    */
      73             :   public static Map<String, Class<?>> getRegisteredEvents() {
      74           1 :     return ImmutableMap.copyOf(typesByString);
      75             :   }
      76             : }