com.dasasian.chok.testutil.AbstractWritableTest.java Source code

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Here is the source code for com.dasasian.chok.testutil.AbstractWritableTest.java

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/**
 * Copyright (C) 2014 Dasasian (damith@dasasian.com)
 *
 * 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.dasasian.chok.testutil;

import org.apache.hadoop.io.DataInputBuffer;
import org.apache.hadoop.io.DataOutputBuffer;
import org.apache.hadoop.io.Writable;

import java.io.IOException;

/**
 * Abstract base test for {@link Writable}s.
 */
public abstract class AbstractWritableTest extends AbstractTest {

    protected DataOutputBuffer writeWritable(Writable writable) throws IOException {
        DataOutputBuffer out = new DataOutputBuffer(1024);
        writable.write(out);
        out.flush();
        return out;
    }

    protected Writable readWritable(DataOutputBuffer out, Writable writable) throws IOException {
        DataInputBuffer inputBuffer = new DataInputBuffer();
        inputBuffer.reset(out.getData(), out.getData().length);
        writable.readFields(inputBuffer);
        return writable;
    }

}