org.apache.drill.exec.store.sequencefile.TestSequenceFileReader.java Source code

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Here is the source code for org.apache.drill.exec.store.sequencefile.TestSequenceFileReader.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.drill.exec.store.sequencefile;

import java.io.DataOutputStream;
import java.io.ByteArrayOutputStream;

import org.junit.Test;
import org.apache.drill.BaseTestQuery;
import org.apache.drill.common.util.FileUtils;
import org.apache.hadoop.io.BytesWritable;

public class TestSequenceFileReader extends BaseTestQuery {

    public static String byteWritableString(String input) throws Exception {
        final ByteArrayOutputStream bout = new ByteArrayOutputStream();
        DataOutputStream out = new DataOutputStream(bout);
        final BytesWritable writable = new BytesWritable(input.getBytes("UTF-8"));
        writable.write(out);
        return new String(bout.toByteArray());
    }

    @Test
    public void testSequenceFileReader() throws Exception {
        String root = FileUtils.getResourceAsFile("/sequencefiles/simple.seq").toURI().toString();
        final String query = String
                .format("select convert_from(t.binary_key, 'UTF8') as k, convert_from(t.binary_value, 'UTF8') as v "
                        + "from dfs_test.`%s` t", root);
        testBuilder().sqlQuery(query).ordered().baselineColumns("k", "v")
                .baselineValues(byteWritableString("key0"), byteWritableString("value0"))
                .baselineValues(byteWritableString("key1"), byteWritableString("value1")).build().run();
    }
}