com.streamsets.datacollector.execution.runner.common.TestProductionSourceOffsetCommitterOffsetTracker.java Source code

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Here is the source code for com.streamsets.datacollector.execution.runner.common.TestProductionSourceOffsetCommitterOffsetTracker.java

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/**
 * Copyright 2015 StreamSets Inc.
 *
 * Licensed under 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 com.streamsets.datacollector.execution.runner.common;

import com.codahale.metrics.MetricRegistry;
import com.streamsets.datacollector.main.RuntimeInfo;
import com.streamsets.datacollector.main.RuntimeModule;
import com.streamsets.datacollector.runner.production.OffsetFileUtil;
import com.streamsets.datacollector.runner.production.ProductionSourceOffsetCommitterOffsetTracker;
import com.streamsets.pipeline.api.OffsetCommitter;
import com.streamsets.pipeline.api.StageException;

import org.apache.commons.io.FileUtils;
import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;

import java.io.File;
import java.io.IOException;
import java.util.Arrays;

public class TestProductionSourceOffsetCommitterOffsetTracker {
    private static final String PIPELINE_NAME = "myPipeline";
    private static final String PIPELINE_REV = "2.0";

    @BeforeClass
    public static void beforeClass() throws IOException {
        System.setProperty(RuntimeModule.SDC_PROPERTY_PREFIX + RuntimeInfo.DATA_DIR, "./target/var");
        File f = new File(System.getProperty(RuntimeModule.SDC_PROPERTY_PREFIX + RuntimeInfo.DATA_DIR));
        FileUtils.deleteDirectory(f);
    }

    @AfterClass
    public static void afterClass() {
        System.getProperties().remove(RuntimeModule.SDC_PROPERTY_PREFIX + RuntimeInfo.DATA_DIR);
    }

    @Test
    public void testProductionSourceOffsetCommitterOffsetTracker() {

        RuntimeInfo info = new RuntimeInfo(RuntimeModule.SDC_PROPERTY_PREFIX, new MetricRegistry(),
                Arrays.asList(getClass().getClassLoader()));
        ProductionSourceOffsetCommitterOffsetTracker offsetTracker = new ProductionSourceOffsetCommitterOffsetTracker(
                PIPELINE_NAME, PIPELINE_REV, info, new OffsetCommitter() {
                    @Override
                    public void commit(String offset) throws StageException {
                        //no-op
                    }
                });

        Assert.assertEquals(false, offsetTracker.isFinished());
        Assert.assertEquals("", offsetTracker.getOffset());

        offsetTracker.setOffset("abc");
        offsetTracker.commitOffset();
        Assert.assertEquals("abc", offsetTracker.getOffset());

        Assert.assertEquals(OffsetFileUtil.getPipelineOffsetFile(info, PIPELINE_NAME, PIPELINE_REV).lastModified(),
                offsetTracker.getLastBatchTime());
    }
}