com.linkedin.pinot.core.util.CrcUtilsTest.java Source code

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Here is the source code for com.linkedin.pinot.core.util.CrcUtilsTest.java

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/**
 * Copyright (C) 2014-2016 LinkedIn Corp. (pinot-core@linkedin.com)
 *
 * Licensed 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.linkedin.pinot.core.util;

import com.linkedin.pinot.util.TestUtils;
import java.io.File;
import java.util.concurrent.TimeUnit;

import org.apache.commons.io.FileUtils;
import org.testng.Assert;
import org.testng.annotations.Test;

import com.linkedin.pinot.common.segment.ReadMode;
import com.linkedin.pinot.common.segment.SegmentMetadata;
import com.linkedin.pinot.core.chunk.creator.impl.ChunkIndexCreationDriverImplTest;
import com.linkedin.pinot.core.indexsegment.generator.SegmentGeneratorConfig;
import com.linkedin.pinot.core.segment.creator.SegmentIndexCreationDriver;
import com.linkedin.pinot.core.segment.creator.impl.SegmentCreationDriverFactory;
import com.linkedin.pinot.core.segment.index.loader.Loaders;
import com.linkedin.pinot.segments.v1.creator.SegmentTestUtils;

/**
 * Dec 4, 2014
 */

public class CrcUtilsTest {

    private static final String AVRO_DATA = "data/test_data-mv.avro";
    private static File INDEX_DIR = new File("/tmp/testingCrc");

    @Test
    public void test1() throws Exception {
        if (INDEX_DIR.exists()) {
            FileUtils.deleteQuietly(INDEX_DIR);
        }

        final CrcUtils u1 = CrcUtils.forAllFilesInFolder(new File(makeSegmentAndReturnPath()));
        final long crc1 = u1.computeCrc();
        final String md51 = u1.computeMD5();

        FileUtils.deleteQuietly(INDEX_DIR);

        final CrcUtils u2 = CrcUtils.forAllFilesInFolder(new File(makeSegmentAndReturnPath()));
        final long crc2 = u2.computeCrc();
        final String md52 = u2.computeMD5();

        Assert.assertEquals(crc1, crc2);
        Assert.assertEquals(md51, md52);

        FileUtils.deleteQuietly(INDEX_DIR);

        final com.linkedin.pinot.core.indexsegment.IndexSegment segment = Loaders.IndexSegment
                .load(new File(makeSegmentAndReturnPath()), ReadMode.mmap);
        final SegmentMetadata m = segment.getSegmentMetadata();

        System.out.println(m.getCrc());
        System.out.println(m.getIndexCreationTime());

        FileUtils.deleteQuietly(INDEX_DIR);

    }

    private String makeSegmentAndReturnPath() throws Exception {
        final String filePath = TestUtils.getFileFromResourceUrl(
                ChunkIndexCreationDriverImplTest.class.getClassLoader().getResource(AVRO_DATA));

        final SegmentGeneratorConfig config = SegmentTestUtils.getSegmentGenSpecWithSchemAndProjectedColumns(
                new File(filePath), INDEX_DIR, "daysSinceEpoch", TimeUnit.DAYS, "testTable");
        config.setSegmentNamePostfix("1");
        config.setTimeColumnName("daysSinceEpoch");
        final SegmentIndexCreationDriver driver = SegmentCreationDriverFactory.get(null);
        driver.init(config);
        driver.build();

        return new File(INDEX_DIR, driver.getSegmentName()).getAbsolutePath();
    }
}