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

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Here is the source code for org.apache.tajo.storage.TestFileSystems.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 org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.LocalFileSystem;
import org.apache.hadoop.fs.Path;
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.StoreType;
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.Fragment;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;

import java.io.IOException;
import java.net.URI;
import java.util.Arrays;
import java.util.Collection;
import java.util.List;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

@RunWith(Parameterized.class)
public class TestFileSystems {

    private static String TEST_PATH = "target/test-data/TestFileSystem";
    private TajoConf conf;
    private FileStorageManager sm;
    private FileSystem fs;
    private Path testDir;

    public TestFileSystems(FileSystem fs) throws IOException {
        this.fs = fs;
        this.conf = new TajoConf(fs.getConf());
        sm = (FileStorageManager) StorageManager.getFileStorageManager(conf);
        testDir = getTestDir(this.fs, TEST_PATH);
    }

    public Path getTestDir(FileSystem fs, String dir) throws IOException {
        Path path = new Path(dir);
        if (fs.exists(path))
            fs.delete(path, true);

        fs.mkdirs(path);

        return fs.makeQualified(path);
    }

    @Parameterized.Parameters
    public static Collection<Object[]> generateParameters() throws IOException {
        return Arrays.asList(new Object[][] { { FileSystem.getLocal(new TajoConf()) }, });
    }

    @Before
    public void setup() throws IOException {
        if (!(fs instanceof LocalFileSystem)) {
            conf.set("fs.local.block.size", "10");
            fs.initialize(URI.create(fs.getScheme() + ":///"), conf);
            fs.setConf(conf);
        }
    }

    @After
    public void tearDown() throws IOException {
        if (!(fs instanceof LocalFileSystem)) {
            fs.setConf(new TajoConf());
        }
    }

    @Test
    public void testBlockSplit() throws IOException {

        Schema schema = new Schema();
        schema.addColumn("id", Type.INT4);
        schema.addColumn("age", Type.INT4);
        schema.addColumn("name", Type.TEXT);

        TableMeta meta = CatalogUtil.newTableMeta(StoreType.CSV);

        Tuple[] tuples = new Tuple[4];
        for (int i = 0; i < tuples.length; i++) {
            tuples[i] = new VTuple(3);
            tuples[i].put(new Datum[] { DatumFactory.createInt4(i), DatumFactory.createInt4(i + 32),
                    DatumFactory.createText("name" + i) });
        }

        Path path = StorageUtil.concatPath(testDir, "testGetScannerAndAppender", "table.csv");
        fs.mkdirs(path.getParent());

        Appender appender = sm.getAppender(meta, schema, path);
        appender.init();
        for (Tuple t : tuples) {
            appender.addTuple(t);
        }
        appender.close();
        FileStatus fileStatus = fs.getFileStatus(path);

        List<Fragment> splits = sm.getSplits("table", meta, schema, path);
        int splitSize = (int) Math.ceil(fileStatus.getLen() / (double) fileStatus.getBlockSize());
        assertEquals(splitSize, splits.size());

        for (Fragment fragment : splits) {
            assertTrue(fragment.getLength() <= fileStatus.getBlockSize());
        }
    }
}