| /** |
| * 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.hadoop.hdfs.server.blockmanagement; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertNull; |
| |
| import java.util.Queue; |
| |
| import org.apache.hadoop.hdfs.DFSTestUtil; |
| import org.apache.hadoop.hdfs.protocol.Block; |
| import org.apache.hadoop.hdfs.server.blockmanagement.PendingDataNodeMessages.ReportedBlockInfo; |
| import org.apache.hadoop.hdfs.server.common.HdfsServerConstants.ReplicaState; |
| import org.junit.Test; |
| |
| import com.google.common.base.Joiner; |
| |
| |
| public class TestPendingDataNodeMessages { |
| PendingDataNodeMessages msgs = new PendingDataNodeMessages(); |
| |
| private final Block block1Gs1 = new Block(1, 0, 1); |
| private final Block block1Gs2 = new Block(1, 0, 2); |
| private final Block block1Gs2DifferentInstance = |
| new Block(1, 0, 2); |
| private final Block block2Gs1 = new Block(2, 0, 1); |
| |
| @Test |
| public void testQueues() { |
| DatanodeDescriptor fakeDN = DFSTestUtil.getLocalDatanodeDescriptor(); |
| msgs.enqueueReportedBlock(fakeDN, block1Gs1, ReplicaState.FINALIZED); |
| msgs.enqueueReportedBlock(fakeDN, block1Gs2, ReplicaState.FINALIZED); |
| |
| assertEquals(2, msgs.count()); |
| |
| // Nothing queued yet for block 2 |
| assertNull(msgs.takeBlockQueue(block2Gs1)); |
| assertEquals(2, msgs.count()); |
| |
| Queue<ReportedBlockInfo> q = |
| msgs.takeBlockQueue(block1Gs2DifferentInstance); |
| assertEquals( |
| "ReportedBlockInfo [block=blk_1_1, dn=127.0.0.1:50010, reportedState=FINALIZED]," + |
| "ReportedBlockInfo [block=blk_1_2, dn=127.0.0.1:50010, reportedState=FINALIZED]", |
| Joiner.on(",").join(q)); |
| assertEquals(0, msgs.count()); |
| |
| // Should be null if we pull again |
| assertNull(msgs.takeBlockQueue(block1Gs1)); |
| assertEquals(0, msgs.count()); |
| } |
| } |