alluxio.client.block.stream.TestDataWriter.java Source code

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Here is the source code for alluxio.client.block.stream.TestDataWriter.java

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/*
 * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
 * (the "License"). You may not use this work except in compliance with the License, which is
 * available at www.apache.org/licenses/LICENSE-2.0
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied, as more fully set forth in the License.
 *
 * See the NOTICE file distributed with this work for information regarding copyright ownership.
 */

package alluxio.client.block.stream;

import io.netty.buffer.ByteBuf;

import java.io.IOException;
import java.nio.ByteBuffer;

/**
 * A {@link DataWriter} which writes data to a bytebuffer.
 */
public class TestDataWriter implements DataWriter {
    private final ByteBuffer mBuffer;

    public TestDataWriter(ByteBuffer buffer) {
        mBuffer = buffer;
    }

    @Override
    public void writeChunk(ByteBuf chunk) throws IOException {
        mBuffer.limit(mBuffer.position() + chunk.readableBytes());
        chunk.readBytes(mBuffer);
    }

    @Override
    public void cancel() {
        return;
    }

    @Override
    public void flush() {
        return;
    }

    @Override
    public int chunkSize() {
        return 128;
    }

    @Override
    public long pos() {
        return mBuffer.position();
    }

    @Override
    public void close() {
        return;
    }
}