/*
 * 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.beam.runners.flink.translation.wrappers;

import java.io.IOException;
import java.io.OutputStream;
import org.apache.flink.core.memory.DataOutputView;

/**
 * Wrapper for {@link org.apache.flink.core.memory.DataOutputView}. We need this because Flink
 * writes data using a {@link org.apache.flink.core.memory.DataInputView} while Dataflow {@link
 * org.apache.beam.sdk.coders.Coder}s expect an {@link java.io.OutputStream}.
 */
public class DataOutputViewWrapper extends OutputStream {

  private DataOutputView outputView;

  public DataOutputViewWrapper(DataOutputView outputView) {
    this.outputView = outputView;
  }

  public void setOutputView(DataOutputView outputView) {
    this.outputView = outputView;
  }

  @Override
  public void write(int b) throws IOException {
    outputView.write(b);
  }

  @Override
  public void write(byte[] b, int off, int len) throws IOException {
    outputView.write(b, off, len);
  }
}
