core/src/main/java/org/apache/carbondata/core/util/ReUsableByteArrayDataOutputStream.java

/*
 * 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.carbondata.core.util;

import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;

/**
 * wrapper around DataOutputStream. Which clears the buffer for reuse
 */
public final class ReUsableByteArrayDataOutputStream extends DataOutputStream {

  private ByteArrayOutputStream outputStream;

  public ReUsableByteArrayDataOutputStream(ByteArrayOutputStream outputStream) {
    super(outputStream);
    this.outputStream = outputStream;
  }

  public void reset() {
    outputStream.reset();
  }

  public int getSize() {
    return outputStream.size();
  }

  public byte[] getByteArray() {
    return outputStream.toByteArray();
  }

}