| /* |
| * 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.gossip.manager; |
| |
| import com.codahale.metrics.MetricRegistry; |
| import org.apache.gossip.Member; |
| import org.apache.gossip.GossipSettings; |
| import org.apache.gossip.StartupSettings; |
| import org.apache.gossip.event.GossipListener; |
| import org.apache.gossip.manager.handlers.MessageHandler; |
| import org.apache.gossip.manager.handlers.MessageHandlerFactory; |
| |
| import java.net.URI; |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| public class GossipManagerBuilder { |
| |
| public static ManagerBuilder newBuilder() { |
| return new ManagerBuilder(); |
| } |
| |
| public static final class ManagerBuilder { |
| private String cluster; |
| private URI uri; |
| private String id; |
| private GossipSettings settings; |
| private List<Member> gossipMembers; |
| private GossipListener listener; |
| private MetricRegistry registry; |
| private Map<String,String> properties; |
| private MessageHandler messageHandler; |
| |
| private ManagerBuilder() {} |
| |
| private void checkArgument(boolean check, String msg) { |
| if (!check) { |
| throw new IllegalArgumentException(msg); |
| } |
| } |
| |
| public ManagerBuilder cluster(String cluster) { |
| this.cluster = cluster; |
| return this; |
| } |
| |
| public ManagerBuilder properties(Map<String,String> properties) { |
| this.properties = properties; |
| return this; |
| } |
| |
| public ManagerBuilder id(String id) { |
| this.id = id; |
| return this; |
| } |
| |
| public ManagerBuilder gossipSettings(GossipSettings settings) { |
| this.settings = settings; |
| return this; |
| } |
| |
| public ManagerBuilder startupSettings(StartupSettings startupSettings) { |
| this.cluster = startupSettings.getCluster(); |
| this.id = startupSettings.getId(); |
| this.settings = startupSettings.getGossipSettings(); |
| this.gossipMembers = startupSettings.getGossipMembers(); |
| this.uri = startupSettings.getUri(); |
| return this; |
| } |
| |
| public ManagerBuilder gossipMembers(List<Member> members) { |
| this.gossipMembers = members; |
| return this; |
| } |
| |
| public ManagerBuilder listener(GossipListener listener) { |
| this.listener = listener; |
| return this; |
| } |
| |
| public ManagerBuilder registry(MetricRegistry registry) { |
| this.registry = registry; |
| return this; |
| } |
| |
| public ManagerBuilder uri(URI uri){ |
| this.uri = uri; |
| return this; |
| } |
| |
| public ManagerBuilder messageHandler(MessageHandler messageHandler) { |
| this.messageHandler = messageHandler; |
| return this; |
| } |
| |
| public GossipManager build() { |
| checkArgument(id != null, "You must specify an id"); |
| checkArgument(cluster != null, "You must specify a cluster name"); |
| checkArgument(settings != null, "You must specify gossip settings"); |
| checkArgument(uri != null, "You must specify a uri"); |
| if (registry == null){ |
| registry = new MetricRegistry(); |
| } |
| if (properties == null){ |
| properties = new HashMap<String,String>(); |
| } |
| if (listener == null){ |
| listener((a,b) -> {}); |
| } |
| if (gossipMembers == null) { |
| gossipMembers = new ArrayList<>(); |
| } |
| |
| if (messageHandler == null) { |
| messageHandler = MessageHandlerFactory.defaultHandler(); |
| } |
| return new GossipManager(cluster, uri, id, properties, settings, gossipMembers, listener, registry, messageHandler) {} ; |
| } |
| } |
| |
| } |