/*
 * 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.iotdb.db.queryengine.execution.operator.window.ainode;

import org.apache.tsfile.utils.ReadWriteIOUtils;

import java.io.DataOutputStream;
import java.io.IOException;
import java.nio.ByteBuffer;

public class BottomInferenceWindowParameter extends InferenceWindowParameter {

  long windowSize;

  public BottomInferenceWindowParameter(long windowSize) {
    this.windowSize = windowSize;
    this.windowType = InferenceWindowType.TAIL;
  }

  public long getWindowSize() {
    return windowSize;
  }

  @Override
  public void serializeAttributes(ByteBuffer buffer) {
    ReadWriteIOUtils.write(windowSize, buffer);
  }

  @Override
  public void serializeAttributes(DataOutputStream stream) throws IOException {
    ReadWriteIOUtils.write(windowSize, stream);
  }

  public static BottomInferenceWindowParameter deserialize(ByteBuffer byteBuffer) {
    long windowSize = byteBuffer.getLong();
    return new BottomInferenceWindowParameter(windowSize);
  }

  @Override
  public boolean equals(Object obj) {
    if (this == obj) {
      return true;
    }
    if (!(obj instanceof BottomInferenceWindowParameter)) {
      return false;
    }
    BottomInferenceWindowParameter parameter = (BottomInferenceWindowParameter) obj;
    return windowSize == parameter.windowSize;
  }

  @Override
  public int hashCode() {
    return Long.hashCode(windowSize);
  }
}
