/*
 * 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
 *
 *     https://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.avro.specific;

import java.io.InputStream;
import java.io.IOException;
import java.io.ObjectInput;

/**
 * Helper to permit Externalizable implementations that write to an InputStream.
 */
class ExternalizableInput extends InputStream {
  private final ObjectInput in;

  public ExternalizableInput(ObjectInput in) {
    this.in = in;
  }

  @Override
  public int available() throws IOException {
    return in.available();
  }

  @Override
  public void close() throws IOException {
    in.close();
  }

  @Override
  public boolean markSupported() {
    return false;
  }

  @Override
  public int read() throws IOException {
    return in.read();
  }

  @Override
  public int read(byte[] b) throws IOException {
    return in.read(b);
  }

  @Override
  public int read(byte[] b, int offset, int len) throws IOException {
    return in.read(b, offset, len);
  }

  @Override
  public long skip(long n) throws IOException {
    return in.skip(n);
  }
}
