| /* |
| * 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.samza.zk; |
| |
| import org.I0Itec.zkclient.exception.ZkInterruptedException; |
| import org.apache.samza.config.ZkConfig; |
| import org.apache.samza.coordinator.CoordinationUtils; |
| import org.apache.samza.coordinator.DistributedLockWithState; |
| import org.apache.samza.coordinator.Latch; |
| import org.apache.samza.coordinator.LeaderElector; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| |
| public class ZkCoordinationUtils implements CoordinationUtils { |
| private static final Logger LOG = LoggerFactory.getLogger(ZkCoordinationUtils.class); |
| |
| public final ZkConfig zkConfig; |
| public final ZkUtils zkUtils; |
| public final String processorIdStr; |
| |
| public ZkCoordinationUtils(String processorId, ZkConfig zkConfig, ZkUtils zkUtils) { |
| this.zkConfig = zkConfig; |
| this.zkUtils = zkUtils; |
| this.processorIdStr = processorId; |
| } |
| |
| @Override |
| public LeaderElector getLeaderElector() { |
| return new ZkLeaderElector(processorIdStr, zkUtils); |
| } |
| |
| @Override |
| public Latch getLatch(int size, String latchId) { |
| return new ZkProcessorLatch(size, latchId, processorIdStr, zkUtils); |
| } |
| |
| @Override |
| public DistributedLockWithState getLockWithState(String lockId) { |
| return new ZkDistributedLock(processorIdStr, zkUtils, lockId); |
| } |
| |
| public void close() { |
| try { |
| if (zkUtils != null) |
| zkUtils.close(); |
| } catch (ZkInterruptedException ex) { |
| // Swallowing due to occurrence in the last stage of lifecycle(Not actionable). |
| LOG.error("Exception in close(): ", ex); |
| } |
| } |
| |
| // TODO - SAMZA-1128 CoordinationService should directly depend on ZkUtils and DebounceTimer |
| public ZkUtils getZkUtils() { |
| return zkUtils; |
| } |
| } |