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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 com.gemstone.gemfire.internal;

import java.io.DataInputStream;
import java.io.InputStream;


/**
 * An extension to {@link DataInputStream} that implements
 * {@link VersionedDataStream} for a stream coming from a different product
 * version.
 * 
 * @author swale
 * @since 7.1
 */
public final class VersionedDataInputStream extends DataInputStream implements
    VersionedDataStream {

  private final Version version;

  /**
   * Creates a VersionedDataInputStream that uses the specified underlying
   * InputStream.
   * 
   * @param in
   *          the specified input stream
   * @param version
   *          the product version that serialized object on the given input
   *          stream
   */
  public VersionedDataInputStream(InputStream in, Version version) {
    super(in);
    this.version = version;
  }

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

  /**
   * {@inheritDoc}
   */
  @Override
  public String toString() {
    return super.toString() + " (" + this.version + ')';
  }
}