org.apache.carbondata.sdk.file.ConcurrentAvroSdkWriterTest.java Source code

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Here is the source code for org.apache.carbondata.sdk.file.ConcurrentAvroSdkWriterTest.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.carbondata.sdk.file;

import java.io.File;
import java.io.IOException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;

import org.apache.avro.generic.GenericData;
import org.apache.commons.io.FileUtils;
import org.junit.Assert;
import org.junit.Test;

/**
 * multi-thread Test suite for {@link CSVCarbonWriter}
 */
public class ConcurrentAvroSdkWriterTest {

    private static final int recordsPerItr = 10;
    private static final short numOfThreads = 4;

    @Test
    public void testWriteFiles() throws IOException {
        String path = "./testWriteFiles";
        FileUtils.deleteDirectory(new File(path));

        String mySchema = "{" + "  \"name\": \"address\", " + "   \"type\": \"record\", " + "    \"fields\": [  "
                + "  { \"name\": \"name\", \"type\": \"string\"}, " + "  { \"name\": \"age\", \"type\": \"int\"}, "
                + "  { " + "    \"name\": \"address\", " + "      \"type\": { " + "    \"type\" : \"record\", "
                + "        \"name\" : \"my_address\", " + "        \"fields\" : [ "
                + "    {\"name\": \"street\", \"type\": \"string\"}, "
                + "    {\"name\": \"city\", \"type\": \"string\"} " + "  ]} " + "  } " + "] " + "}";

        String json = "{\"name\":\"bob\", \"age\":10, \"address\" : {\"street\":\"abc\", \"city\":\"bang\"}}";

        // conversion to GenericData.Record
        org.apache.avro.Schema avroSchema = new org.apache.avro.Schema.Parser().parse(mySchema);
        GenericData.Record record = TestUtil.jsonToAvro(json, mySchema);

        ExecutorService executorService = Executors.newFixedThreadPool(numOfThreads);
        try {
            CarbonWriterBuilder builder = CarbonWriter.builder().outputPath(path).withThreadSafe(numOfThreads);
            CarbonWriter writer = builder.withAvroInput(avroSchema).writtenBy("ConcurrentAvroSdkWriterTest")
                    .build();
            // write in multi-thread
            for (int i = 0; i < numOfThreads; i++) {
                executorService.submit(new WriteLogic(writer, record));
            }
            executorService.shutdown();
            executorService.awaitTermination(2, TimeUnit.HOURS);
            writer.close();
        } catch (Exception e) {
            e.printStackTrace();
            Assert.fail(e.getMessage());
        }

        // read the files and verify the count
        CarbonReader reader;
        try {
            reader = CarbonReader.builder(path, "_temp2122").projection(new String[] { "name", "age" }).build();
            int i = 0;
            while (reader.hasNext()) {
                Object[] row = (Object[]) reader.readNextRow();
                i++;
            }
            Assert.assertEquals(i, numOfThreads * recordsPerItr);
            reader.close();
        } catch (InterruptedException e) {
            e.printStackTrace();
            Assert.fail(e.getMessage());
        }

        FileUtils.deleteDirectory(new File(path));
    }

    class WriteLogic implements Runnable {
        CarbonWriter writer;
        GenericData.Record record;

        WriteLogic(CarbonWriter writer, GenericData.Record record) {
            this.writer = writer;
            this.record = record;
        }

        @Override
        public void run() {
            try {
                for (int i = 0; i < recordsPerItr; i++) {
                    writer.write(record);
                }
            } catch (IOException e) {
                e.printStackTrace();
                Assert.fail(e.getMessage());
            }
        }
    }

}