| /* |
| * 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 com.google.code.gossip.manager.random; |
| |
| import java.util.List; |
| import java.util.Random; |
| |
| import com.google.code.gossip.GossipService; |
| import com.google.code.gossip.LocalGossipMember; |
| import com.google.code.gossip.manager.GossipManager; |
| import com.google.code.gossip.manager.impl.SendMembersActiveGossipThread; |
| |
| public class RandomActiveGossipThread extends SendMembersActiveGossipThread { |
| |
| /** The Random used for choosing a member to gossip with. */ |
| private final Random random; |
| |
| public RandomActiveGossipThread(GossipManager gossipManager) { |
| super(gossipManager); |
| random = new Random(); |
| } |
| |
| /** |
| * [The selectToSend() function.] Find a random peer from the local membership list. In the case |
| * where this client is the only member in the list, this method will return null. |
| * |
| * @return Member random member if list is greater than 1, null otherwise |
| */ |
| protected LocalGossipMember selectPartner(List<LocalGossipMember> memberList) { |
| LocalGossipMember member = null; |
| if (memberList.size() > 0) { |
| int randomNeighborIndex = random.nextInt(memberList.size()); |
| member = memberList.get(randomNeighborIndex); |
| } else { |
| GossipService.LOGGER.debug("I am alone in this world."); |
| } |
| return member; |
| } |
| |
| } |