org.apache.tajo.storage.TestRowFile.java Source code

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Here is the source code for org.apache.tajo.storage.TestRowFile.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.tajo.storage;

import com.google.common.collect.Sets;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.tajo.TajoTestingCluster;
import org.apache.tajo.TpchTestBase;
import org.apache.tajo.catalog.CatalogUtil;
import org.apache.tajo.catalog.Schema;
import org.apache.tajo.catalog.TableMeta;
import org.apache.tajo.catalog.proto.CatalogProtos.TableProto;
import org.apache.tajo.catalog.statistics.TableStats;
import org.apache.tajo.common.TajoDataTypes.Type;
import org.apache.tajo.conf.TajoConf;
import org.apache.tajo.datum.Datum;
import org.apache.tajo.datum.DatumFactory;
import org.apache.tajo.storage.fragment.FileFragment;
import org.apache.tajo.util.FileUtil;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

import java.io.IOException;
import java.util.Set;

import static org.junit.Assert.assertEquals;

public class TestRowFile {
    private static final Log LOG = LogFactory.getLog(TestRowFile.class);

    private TajoTestingCluster cluster;
    private TajoConf conf;

    @Before
    public void setup() throws Exception {
        cluster = TpchTestBase.getInstance().getTestingCluster();
        conf = cluster.getConfiguration();
    }

    @After
    public void teardown() throws Exception {
    }

    @Test
    public void test() throws IOException {
        Schema schema = new Schema();
        schema.addColumn("id", Type.INT4);
        schema.addColumn("age", Type.INT8);
        schema.addColumn("description", Type.TEXT);

        TableMeta meta = CatalogUtil.newTableMeta("ROWFILE");

        FileTablespace sm = (FileTablespace) TablespaceManager.get(cluster.getDefaultFileSystem().getUri()).get();

        Path tablePath = new Path("/test");
        Path metaPath = new Path(tablePath, ".meta");
        Path dataPath = new Path(tablePath, "test.tbl");
        FileSystem fs = sm.getFileSystem();
        fs.mkdirs(tablePath);

        FileUtil.writeProto(fs, metaPath, meta.getProto());

        Appender appender = sm.getAppender(meta, schema, dataPath);
        appender.enableStats();
        appender.init();

        int tupleNum = 200;
        Tuple tuple;
        Datum stringDatum = DatumFactory.createText("abcdefghijklmnopqrstuvwxyz");
        Set<Integer> idSet = Sets.newHashSet();

        tuple = new VTuple(3);
        long start = System.currentTimeMillis();
        for (int i = 0; i < tupleNum; i++) {
            tuple.put(0, DatumFactory.createInt4(i + 1));
            tuple.put(1, DatumFactory.createInt8(25l));
            tuple.put(2, stringDatum);
            appender.addTuple(tuple);
            idSet.add(i + 1);
        }
        appender.close();

        TableStats stat = appender.getStats();
        assertEquals(tupleNum, stat.getNumRows().longValue());

        FileStatus file = fs.getFileStatus(dataPath);
        TableProto proto = (TableProto) FileUtil.loadProto(cluster.getDefaultFileSystem(), metaPath,
                TableProto.getDefaultInstance());
        meta = new TableMeta(proto);
        FileFragment fragment = new FileFragment("test.tbl", dataPath, 0, file.getLen());

        int tupleCnt = 0;
        start = System.currentTimeMillis();
        Scanner scanner = sm.getScanner(meta, schema, fragment);
        scanner.init();
        while ((tuple = scanner.next()) != null) {
            tupleCnt++;
        }
        scanner.close();

        assertEquals(tupleNum, tupleCnt);

        tupleCnt = 0;
        long fileStart = 0;
        long fileLen = file.getLen() / 13;

        for (int i = 0; i < 13; i++) {
            fragment = new FileFragment("test.tbl", dataPath, fileStart, fileLen);
            scanner = new RowFile.RowFileScanner(conf, schema, meta, fragment);
            scanner.init();
            while ((tuple = scanner.next()) != null) {
                if (!idSet.remove(tuple.getInt4(0)) && LOG.isDebugEnabled()) {
                    LOG.debug("duplicated! " + tuple.getInt4(0));
                }
                tupleCnt++;
            }
            scanner.close();
            fileStart += fileLen;
            if (i == 11) {
                fileLen = file.getLen() - fileStart;
            }
        }
        assertEquals(tupleNum, tupleCnt);
    }
}