/**
* 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.namenode;
import static org.apache.hadoop.hdfs.server.namenode.NNStorage.getFinalizedEditsFileName;
import static org.apache.hadoop.hdfs.server.namenode.NNStorage.getImageFileName;
import static org.apache.hadoop.hdfs.server.namenode.NNStorage.getInProgressEditsFileName;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertTrue;
import java.io.File;
import java.io.IOException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.hdfs.server.common.Storage.StorageDirectory;
import org.apache.hadoop.hdfs.server.namenode.FSImageStorageInspector.FSImageFile;
import org.apache.hadoop.hdfs.server.namenode.NNStorage.NameNodeDirType;
import org.junit.Test;
public class TestFSImageStorageInspector {
private static final Log LOG = LogFactory.getLog(
TestFSImageStorageInspector.class);
/**
* Simple test with image, edits, and inprogress edits
*/
@Test
public void testCurrentStorageInspector() throws IOException {
FSImageTransactionalStorageInspector inspector =
new FSImageTransactionalStorageInspector();
StorageDirectory mockDir = FSImageTestUtil.mockStorageDirectory(
NameNodeDirType.IMAGE_AND_EDITS,
false,
"/foo/current/" + getImageFileName(123),
"/foo/current/" + getFinalizedEditsFileName(123, 456),
"/foo/current/" + getImageFileName(456),
"/foo/current/" + getInProgressEditsFileName(457));
inspector.inspectDirectory(mockDir);
assertEquals(2, inspector.foundImages.size());
FSImageFile latestImage = inspector.getLatestImages().get(0);
assertEquals(456, latestImage.txId);
assertSame(mockDir, latestImage.sd);
assertTrue(inspector.isUpgradeFinalized());
assertEquals(new File("/foo/current/"+getImageFileName(456)),
latestImage.getFile());
}
}