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/*
 * Copyright (c) 2010-2015 Pivotal Software, Inc. All rights reserved.
 *
 * 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. See accompanying
 * LICENSE file.
 */

package com.gemstone.gemfire.internal;

import java.io.IOException;
import java.io.ObjectOutput;

import com.gemstone.gemfire.internal.shared.Version;

/**
 * An extension to {@link ObjectOutput} that implements
 * {@link VersionedDataStream} wrapping given {@link ObjectOutput} for a stream
 * directed to a different product version.
 * 
 * @author swale
 * @since 7.1
 */
public final class VersionedObjectOutput implements ObjectOutput,
    VersionedDataStream {

  private final ObjectOutput out;
  private final Version version;

  /**
   * Creates a VersionedObjectOutput that wraps the specified underlying
   * ObjectOutput.
   * 
   * @param out
   *          the underlying {@link ObjectOutput}
   * @param version
   *          the product version that serialized object on the given
   *          {@link ObjectOutput}
   */
  public VersionedObjectOutput(ObjectOutput out, Version version) {
    if (version.compareTo(Version.CURRENT) > 0) {
      Assert.fail("unexpected version: " + version + ", CURRENT: "
          + Version.CURRENT);
    }
    this.out = out;
    this.version = version;
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public Version getVersion() {
    return this.version;
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public void write(int b) throws IOException {
    this.out.write(b);
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public void write(byte[] b) throws IOException {
    this.out.write(b);
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public void write(byte[] b, int off, int len) throws IOException {
    this.out.write(b, off, len);
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public void writeBoolean(boolean v) throws IOException {
    this.out.writeBoolean(v);
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public void writeByte(int v) throws IOException {
    this.out.writeByte(v);
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public void writeShort(int v) throws IOException {
    this.out.writeShort(v);
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public void writeChar(int v) throws IOException {
    this.out.writeChar(v);
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public void writeInt(int v) throws IOException {
    this.out.writeInt(v);
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public void writeLong(long v) throws IOException {
    this.out.writeLong(v);
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public void writeFloat(float v) throws IOException {
    this.out.writeFloat(v);
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public void writeDouble(double v) throws IOException {
    this.out.writeDouble(v);
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public void writeBytes(String s) throws IOException {
    this.out.writeBytes(s);
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public void writeChars(String s) throws IOException {
    this.out.writeChars(s);
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public void writeUTF(String s) throws IOException {
    this.out.writeUTF(s);
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public void writeObject(Object obj) throws IOException {
    this.out.writeObject(obj);
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public void flush() throws IOException {
    this.out.flush();
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public void close() throws IOException {
    this.out.close();
  }
}