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

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Here is the source code for org.apache.flume.channel.file.TestCheckpoint.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 java.io.File;
import java.io.IOException;

import junit.framework.Assert;

import org.apache.commons.io.FileUtils;
import org.junit.After;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;

public class TestCheckpoint {

    File file;
    File inflightPuts;
    File inflightTakes;
    File queueSet;
    File queueSet2;
    File queueSet3;

    @Before
    public void setup() throws IOException {
        file = File.createTempFile("Checkpoint", "");
        inflightPuts = File.createTempFile("inflightPuts", "");
        FileUtils.forceDeleteOnExit(inflightPuts);
        inflightTakes = File.createTempFile("inflightTakes", "");
        FileUtils.forceDeleteOnExit(inflightTakes);
        queueSet = File.createTempFile("queueset", "");
        FileUtils.forceDeleteOnExit(queueSet);
        queueSet2 = File.createTempFile("queueset2", "");
        FileUtils.forceDeleteOnExit(queueSet2);
        queueSet3 = File.createTempFile("queueset3", "");
        FileUtils.forceDeleteOnExit(queueSet3);

        Assert.assertTrue(file.isFile());
        Assert.assertTrue(file.canWrite());
    }

    @After
    public void cleanup() {
        file.delete();
    }

    @Test
    public void testSerialization() throws Exception {
        EventQueueBackingStore backingStore = new EventQueueBackingStoreFileV2(file, 1, "test");
        FlumeEventPointer ptrIn = new FlumeEventPointer(10, 20);
        FlumeEventQueue queueIn = new FlumeEventQueue(backingStore, inflightTakes, inflightPuts, queueSet);
        queueIn.addHead(ptrIn);
        FlumeEventQueue queueOut = new FlumeEventQueue(backingStore, inflightTakes, inflightPuts, queueSet2);
        Assert.assertEquals(0, queueOut.getLogWriteOrderID());
        queueIn.checkpoint(false);
        FlumeEventQueue queueOut2 = new FlumeEventQueue(backingStore, inflightTakes, inflightPuts, queueSet3);
        FlumeEventPointer ptrOut = queueOut2.removeHead(0L);
        Assert.assertEquals(ptrIn, ptrOut);
        Assert.assertTrue(queueOut2.getLogWriteOrderID() > 0);
    }
}