content: /*
   * Tencent is pleased to support the open source community by making Angel available.
   *
   * Copyright (C) 2017-2018 THL A29 Limited, a Tencent company. All rights reserved.
   *
   * 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
   *
   * https://opensource.org/licenses/Apache-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.tencent.angel.graph.client.node2vec.params;
  
  import com.tencent.angel.PartitionKey;
  import com.tencent.angel.ml.matrix.psf.update.base.PartitionUpdateParam;
  import io.netty.buffer.ByteBuf;
  
  public class PartitionUpdateParamWithIds extends PartitionUpdateParam {
  
    protected long[] keyIds;
    protected int startIdx;
    protected int endIdx;
  
    public PartitionUpdateParamWithIds(int matrixId, boolean updateClock, PartitionKey partKey,
        long[] keyIds, int startIdx, int endIdx) {
      super(matrixId, partKey, updateClock);
      this.keyIds = keyIds;
      this.startIdx = startIdx;
      this.endIdx = endIdx;
    }
  
    public PartitionUpdateParamWithIds(int matrixId, PartitionKey partKey, long[] keyIds,
        int startIdx, int endIdx) {
      super(matrixId, partKey);
      this.keyIds = keyIds;
      this.startIdx = startIdx;
      this.endIdx = endIdx;
    }
  
    public PartitionUpdateParamWithIds() {
      super();
    }
  
    public long[] getKeyIds() {
      return keyIds;
    }
  
    protected void clear() {
      keyIds = null;
    }
  
    @Override
    public void serialize(ByteBuf buf) {
      super.serialize(buf);
      int length = endIdx - startIdx;
      buf.writeInt(length);
  
      for (int i = startIdx; i < endIdx; i++) {
        buf.writeLong(keyIds[i]);
      }
    }
  
    @Override
    public void deserialize(ByteBuf buf) {
      super.deserialize(buf);
      int length = buf.readInt();
      this.keyIds = new long[length];
      this.startIdx = 0;
      this.endIdx = length;
  
      for (int i = startIdx; i < endIdx; i++) {
        keyIds[i] = buf.readLong();
      }
    }
  
    @Override
    public int bufferLen() {
      int len = super.bufferLen();
      int length = endIdx - startIdx;
      return len + 4 + 8 * length;
    }
  }
  