| /** |
| * 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.hbase.mapreduce; |
| |
| import edu.umd.cs.findbugs.annotations.Nullable; |
| import java.io.IOException; |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.Map; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.hbase.HBaseClassTestRule; |
| import org.apache.hadoop.hbase.TableName; |
| import org.apache.hadoop.hbase.client.Scan; |
| import org.apache.hadoop.hbase.io.ImmutableBytesWritable; |
| import org.apache.hadoop.hbase.logging.Log4jUtils; |
| import org.apache.hadoop.hbase.snapshot.SnapshotTestingUtils; |
| import org.apache.hadoop.hbase.testclassification.LargeTests; |
| import org.apache.hadoop.hbase.testclassification.VerySlowMapReduceTests; |
| import org.apache.hadoop.hbase.util.Bytes; |
| import org.apache.hadoop.hbase.util.CommonFSUtils; |
| import org.apache.hadoop.mapreduce.Job; |
| import org.junit.Before; |
| import org.junit.BeforeClass; |
| import org.junit.ClassRule; |
| import org.junit.experimental.categories.Category; |
| |
| import org.apache.hbase.thirdparty.com.google.common.base.Function; |
| import org.apache.hbase.thirdparty.com.google.common.collect.ImmutableList; |
| import org.apache.hbase.thirdparty.com.google.common.collect.Multimaps; |
| |
| @Category({ VerySlowMapReduceTests.class, LargeTests.class }) |
| public class TestMultiTableSnapshotInputFormat extends MultiTableInputFormatTestBase { |
| |
| @ClassRule |
| public static final HBaseClassTestRule CLASS_RULE = |
| HBaseClassTestRule.forClass(TestMultiTableSnapshotInputFormat.class); |
| |
| protected Path restoreDir; |
| |
| @BeforeClass |
| public static void setUpSnapshots() throws Exception { |
| Log4jUtils.enableDebug(MultiTableSnapshotInputFormat.class); |
| Log4jUtils.enableDebug(MultiTableSnapshotInputFormatImpl.class); |
| |
| // take a snapshot of every table we have. |
| for (String tableName : TABLES) { |
| SnapshotTestingUtils.createSnapshotAndValidate(TEST_UTIL.getAdmin(), |
| TableName.valueOf(tableName), ImmutableList.of(INPUT_FAMILY), null, |
| snapshotNameForTable(tableName), CommonFSUtils.getRootDir(TEST_UTIL.getConfiguration()), |
| TEST_UTIL.getTestFileSystem(), true); |
| } |
| } |
| |
| @Before |
| public void setUp() throws Exception { |
| this.restoreDir = TEST_UTIL.getRandomDir(); |
| } |
| |
| @Override |
| protected void initJob(List<Scan> scans, Job job) throws IOException { |
| TableMapReduceUtil |
| .initMultiTableSnapshotMapperJob(getSnapshotScanMapping(scans), ScanMapper.class, |
| ImmutableBytesWritable.class, ImmutableBytesWritable.class, job, true, restoreDir); |
| } |
| |
| protected Map<String, Collection<Scan>> getSnapshotScanMapping(final List<Scan> scans) { |
| return Multimaps.index(scans, new Function<Scan, String>() { |
| @Nullable |
| @Override |
| public String apply(Scan input) { |
| return snapshotNameForTable( |
| Bytes.toStringBinary(input.getAttribute(Scan.SCAN_ATTRIBUTES_TABLE_NAME))); |
| } |
| }).asMap(); |
| } |
| |
| public static String snapshotNameForTable(String tableName) { |
| return tableName + "_snapshot"; |
| } |
| |
| } |