com.cloudera.cdk.data.hcatalog.TestHCatalogDatasetRepository.java Source code

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Here is the source code for com.cloudera.cdk.data.hcatalog.TestHCatalogDatasetRepository.java

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/**
 * Copyright 2013 Cloudera Inc.
 *
 * 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.cloudera.cdk.data.hcatalog;

import com.cloudera.cdk.data.Dataset;
import com.cloudera.cdk.data.DatasetDescriptor;
import com.google.common.io.Files;
import java.io.File;
import java.io.IOException;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.FileUtil;
import org.apache.hadoop.fs.Path;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import static com.cloudera.cdk.data.filesystem.DatasetTestUtilities.*;

public class TestHCatalogDatasetRepository {

    private static final Logger logger = LoggerFactory.getLogger(TestHCatalogDatasetRepository.class);

    private static final String TABLE_NAME = "test1";

    private FileSystem fileSystem;
    private Path testDirectory;
    private HCatalogDatasetRepository repo;

    @Before
    public void setUp() throws IOException {
        fileSystem = FileSystem.get(new Configuration());
    }

    @Test
    public void testManagedTable() throws IOException {
        File tableDir = new File("/tmp/test/user/hive/warehouse/" + TABLE_NAME);
        FileUtil.fullyDelete(tableDir); // clear out possible previous failed runs
        Assert.assertFalse("Data directory should not exist before test", tableDir.exists());
        repo = new HCatalogDatasetRepository();

        Dataset ds = repo.create(TABLE_NAME, new DatasetDescriptor.Builder().schema(USER_SCHEMA_URL).get());
        Assert.assertTrue("Data directory should exist after dataset creation", tableDir.exists());

        writeTestUsers(ds, 10);
        checkTestUsers(ds, 10);
        Assert.assertTrue("Data directory should exist after writing", tableDir.exists());

        repo.delete(TABLE_NAME);
        Assert.assertFalse("Data directory should not exist after dropping", tableDir.exists());
    }

    @Test
    public void testExternalTable() throws IOException {
        Path testDirectory = new Path(Files.createTempDir().getAbsolutePath());
        File tableDir = new File(testDirectory.toString(), TABLE_NAME);
        Assert.assertFalse("Data directory should not exist before test", tableDir.exists());
        repo = new HCatalogDatasetRepository(fileSystem, testDirectory);

        Dataset ds = repo.create(TABLE_NAME, new DatasetDescriptor.Builder().schema(USER_SCHEMA_URL).get());
        Assert.assertTrue("Data directory should exist after dataset creation", tableDir.exists());

        writeTestUsers(ds, 10);
        checkTestUsers(ds, 10);
        Assert.assertTrue("Data directory should exist after writing", tableDir.exists());

        repo.delete(TABLE_NAME);
        Assert.assertFalse("Data directory should not exist after dropping", tableDir.exists());
    }

}