hbase-server/src/test/java/org/apache/hadoop/hbase/replication/ReplicationSourceDummy.java

   1 /*
   2  * Licensed to the Apache Software Foundation (ASF) under one
   3  * or more contributor license agreements.  See the NOTICE file
   4  * distributed with this work for additional information
   5  * regarding copyright ownership.  The ASF licenses this file
   6  * to you under the Apache License, Version 2.0 (the
   7  * "License"); you may not use this file except in compliance
   8  * with the License.  You may obtain a copy of the License at
   9  *
  10  *     http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  */
  18 package org.apache.hadoop.hbase.replication;
  19
  20 import java.io.IOException;
  21 import java.util.List;
  22 import java.util.UUID;
  23 import java.util.concurrent.atomic.AtomicBoolean;
  24 import org.apache.hadoop.conf.Configuration;
  25 import org.apache.hadoop.fs.FileSystem;
  26 import org.apache.hadoop.fs.Path;
  27 import org.apache.hadoop.hbase.Server;
  28 import org.apache.hadoop.hbase.ServerName;
  29 import org.apache.hadoop.hbase.TableName;
  30 import org.apache.hadoop.hbase.replication.regionserver.MetricsSource;
  31 import org.apache.hadoop.hbase.replication.regionserver.ReplicationSourceInterface;
  32 import org.apache.hadoop.hbase.replication.regionserver.ReplicationSourceManager;
  33 import org.apache.hadoop.hbase.replication.regionserver.WALFileLengthProvider;
  34 import org.apache.hadoop.hbase.util.Pair;
  35 import org.apache.hadoop.hbase.wal.WAL.Entry;
  36
  37 /**
  38  * Source that does nothing at all, helpful to test ReplicationSourceManager
  39  */
  40 public class ReplicationSourceDummy implements ReplicationSourceInterface {
  41
  42   private ReplicationSourceManager manager;
  43   private ReplicationPeer replicationPeer;
  44   private String peerClusterId;
  45   private Path currentPath;
  46   private MetricsSource metrics;
  47   private WALFileLengthProvider walFileLengthProvider;
  48   private AtomicBoolean startup = new AtomicBoolean(false);
  49
  50   @Override
  51   public void init(Configuration conf, FileSystem fs, ReplicationSourceManager manager,
  52       ReplicationQueueStorage rq, ReplicationPeer rp, Server server, String peerClusterId,
  53       UUID clusterId, WALFileLengthProvider walFileLengthProvider, MetricsSource metrics)
  54       throws IOException {
  55     this.manager = manager;
  56     this.peerClusterId = peerClusterId;
  57     this.metrics = metrics;
  58     this.walFileLengthProvider = walFileLengthProvider;
  59     this.replicationPeer = rp;
  60   }
  61
  62   @Override
  63   public void enqueueLog(Path log) {
  64     this.currentPath = log;
  65     metrics.incrSizeOfLogQueue();
  66   }
  67
  68   @Override
  69   public Path getCurrentPath() {
  70     return this.currentPath;
  71   }
  72
  73   @Override
  74   public ReplicationSourceInterface startup() {
  75     startup.set(true);
  76     return this;
  77   }
  78
  79   public boolean isStartup() {
  80     return startup.get();
  81   }
  82
  83   @Override
  84   public void terminate(String reason) {
  85     terminate(reason, null);
  86   }
  87
  88   @Override
  89   public void terminate(String reason, Exception e) {
  90     terminate(reason, e, true);
  91   }
  92
  93   @Override
  94   public void terminate(String reason, Exception e, boolean clearMetrics) {
  95     if (clearMetrics) {
  96       this.metrics.clear();
  97     }
  98   }
  99
 100   @Override
 101   public String getQueueId() {
 102     return peerClusterId;
 103   }
 104
 105   @Override
 106   public String getPeerId() {
 107     String[] parts = peerClusterId.split("-", 2);
 108     return parts.length != 1 ?
 109         parts[0] : peerClusterId;
 110   }
 111
 112   @Override
 113   public String getStats() {
 114     return "";
 115   }
 116
 117   @Override
 118   public void addHFileRefs(TableName tableName, byte[] family, List<Pair<Path, Path>> files)
 119       throws ReplicationException {
 120     return;
 121   }
 122
 123   @Override
 124   public boolean isPeerEnabled() {
 125     return true;
 126   }
 127
 128   @Override
 129   public boolean isSourceActive() {
 130     return true;
 131   }
 132
 133   @Override
 134   public MetricsSource getSourceMetrics() {
 135     return metrics;
 136   }
 137
 138   @Override
 139   public ReplicationEndpoint getReplicationEndpoint() {
 140     return null;
 141   }
 142
 143   @Override
 144   public ReplicationSourceManager getSourceManager() {
 145     return manager;
 146   }
 147
 148   @Override
 149   public void tryThrottle(int batchSize) throws InterruptedException {
 150   }
 151
 152   @Override
 153   public void postShipEdits(List<Entry> entries, int batchSize) {
 154   }
 155
 156   @Override
 157   public WALFileLengthProvider getWALFileLengthProvider() {
 158     return walFileLengthProvider;
 159   }
 160
 161   @Override
 162   public ServerName getServerWALsBelongTo() {
 163     return null;
 164   }
 165
 166   @Override
 167   public ReplicationQueueStorage getReplicationQueueStorage() {
 168     return null;
 169   }
 170
 171   @Override
 172   public ReplicationPeer getPeer() {
 173     return replicationPeer;
 174   }
 175 }