org.apache.flume.channel.file.TestCheckpointRebuilder.java Source code

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Here is the source code for org.apache.flume.channel.file.TestCheckpointRebuilder.java

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/*
 * 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.flume.channel.file;

import static org.apache.flume.channel.file.TestUtils.*;

import java.io.File;
import java.util.Map;
import java.util.Set;

import org.apache.commons.io.FileUtils;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.google.common.collect.Maps;

public class TestCheckpointRebuilder extends TestFileChannelBase {

    protected static final Logger LOG = LoggerFactory.getLogger(TestCheckpointRebuilder.class);

    @Before
    public void setup() throws Exception {
        super.setup();
    }

    @After
    public void teardown() {
        super.teardown();
    }

    @Test
    public void testFastReplay() throws Exception {
        Map<String, String> overrides = Maps.newHashMap();
        overrides.put(FileChannelConfiguration.CAPACITY, String.valueOf(50));
        overrides.put(FileChannelConfiguration.TRANSACTION_CAPACITY, String.valueOf(50));
        channel = createFileChannel(overrides);
        channel.start();
        Assert.assertTrue(channel.isOpen());
        Set<String> in = fillChannel(channel, "checkpointBulder");
        channel.stop();
        checkpointDir = new File(baseDir, "chkpt2");
        File checkpointFile = new File(checkpointDir, "checkpoint");
        File metaDataFile = Serialization.getMetaDataFile(checkpointFile);
        File inflightTakesFile = new File(checkpointDir, "inflighttakes");
        File inflightPutsFile = new File(checkpointDir, "inflightputs");
        File queueSetDir = new File(checkpointDir, "queueset");
        FileUtils.forceDeleteOnExit(checkpointFile);
        FileUtils.forceDeleteOnExit(metaDataFile);
        FileUtils.forceDeleteOnExit(inflightPutsFile);
        FileUtils.forceDeleteOnExit(inflightTakesFile);
        checkpointDir.mkdirs();
        FileUtils.forceDeleteOnExit(checkpointDir);
        EventQueueBackingStore backingStore = EventQueueBackingStoreFactory.get(checkpointFile, 50, "test");
        FlumeEventQueue queue = new FlumeEventQueue(backingStore, inflightTakesFile, inflightPutsFile, queueSetDir);
        CheckpointRebuilder checkpointRebuilder = new CheckpointRebuilder(getAllLogs(dataDirs), queue, true);
        Assert.assertTrue(checkpointRebuilder.rebuild());
        queue.close();
        channel = createFileChannel(overrides);
        channel.start();
        Assert.assertTrue(channel.isOpen());
        Set<String> out = consumeChannel(channel);
        compareInputAndOut(in, out);
    }
}