001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.procedure2.store.region;
019
020import static org.junit.jupiter.api.Assertions.assertEquals;
021
022import java.io.BufferedReader;
023import java.io.ByteArrayInputStream;
024import java.io.ByteArrayOutputStream;
025import java.io.InputStreamReader;
026import java.io.PrintStream;
027import java.nio.charset.StandardCharsets;
028import java.util.ArrayList;
029import java.util.List;
030import org.apache.hadoop.fs.FileSystem;
031import org.apache.hadoop.fs.Path;
032import org.apache.hadoop.hbase.HConstants;
033import org.apache.hadoop.hbase.master.region.MasterRegionFactory;
034import org.apache.hadoop.hbase.testclassification.MasterTests;
035import org.apache.hadoop.hbase.testclassification.SmallTests;
036import org.apache.hadoop.util.ToolRunner;
037import org.junit.jupiter.api.Tag;
038import org.junit.jupiter.api.Test;
039import org.slf4j.Logger;
040import org.slf4j.LoggerFactory;
041
042@Tag(SmallTests.TAG)
043@Tag(MasterTests.TAG)
044public class TestWALProcedurePrettyPrinter extends RegionProcedureStoreTestBase {
045
046  private static final Logger LOG = LoggerFactory.getLogger(TestWALProcedurePrettyPrinter.class);
047
048  @Test
049  public void test() throws Exception {
050    List<RegionProcedureStoreTestProcedure> procs = new ArrayList<>();
051    for (int i = 0; i < 10; i++) {
052      RegionProcedureStoreTestProcedure proc = new RegionProcedureStoreTestProcedure();
053      store.insert(proc, null);
054      procs.add(proc);
055    }
056    store.region.flush(true);
057    for (int i = 0; i < 5; i++) {
058      store.delete(procs.get(i).getProcId());
059    }
060    store.cleanup();
061    Path walParentDir = new Path(htu.getDataTestDir(),
062      MasterRegionFactory.MASTER_STORE_DIR + "/" + HConstants.HREGION_LOGDIR_NAME);
063    FileSystem fs = walParentDir.getFileSystem(htu.getConfiguration());
064    Path walDir = fs.listStatus(walParentDir)[0].getPath();
065    Path walFile = fs.listStatus(walDir)[0].getPath();
066    store.region.requestRollAll();
067    store.region.waitUntilWalRollFinished();
068    ByteArrayOutputStream bos = new ByteArrayOutputStream();
069    PrintStream out = new PrintStream(bos);
070    WALProcedurePrettyPrinter printer = new WALProcedurePrettyPrinter(out);
071    assertEquals(0, ToolRunner.run(htu.getConfiguration(), printer,
072      new String[] { fs.makeQualified(walFile).toString() }));
073    try (BufferedReader reader = new BufferedReader(
074      new InputStreamReader(new ByteArrayInputStream(bos.toByteArray()), StandardCharsets.UTF_8))) {
075      long inserted = 0;
076      long markedDeleted = 0;
077      long deleted = 0;
078      for (;;) {
079        String line = reader.readLine();
080        LOG.info(line);
081        if (line == null) {
082          break;
083        }
084        if (line.startsWith("\t")) {
085          if (line.startsWith("\tpid=")) {
086            inserted++;
087          } else {
088            assertEquals("\tmark deleted", line);
089            markedDeleted++;
090          }
091        } else if (line.contains("type=DeleteFamily")) {
092          deleted++;
093        }
094      }
095      assertEquals(10, inserted);
096      assertEquals(5, markedDeleted);
097      assertEquals(5, deleted);
098    }
099  }
100}