/*
 * Copyright 2014-present Open Networking Foundation
 *
 * 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.
 */
package io.atomix.utils.serializer;

class KryoOutputPool extends KryoIOPool<ByteArrayOutput> {

  private static final int MAX_BUFFER_SIZE = 768 * 1024;
  static final int MAX_POOLED_BUFFER_SIZE = 512 * 1024;

  @Override
  protected ByteArrayOutput create(int bufferSize) {
    return new ByteArrayOutput(bufferSize, MAX_BUFFER_SIZE, new BufferAwareByteArrayOutputStream(bufferSize));
  }

  @Override
  protected boolean recycle(ByteArrayOutput output) {
    if (output.getByteArrayOutputStream().getBufferSize() < MAX_POOLED_BUFFER_SIZE) {
      output.getByteArrayOutputStream().reset();
      output.clear();
      return true;
    }
    return false; // discard
  }
}