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.sampleneighbor3;
  
  import com.tencent.angel.ml.matrix.psf.get.base.PartitionGetResult;
  import io.netty.buffer.ByteBuf;
  
  /**
   * Result of GetNeighbor
   */
  public class PartSampleNeighborResult extends PartitionGetResult {
  
    private int partId;
    /**
     * Node id to neighbors map
     */
    private long[][] nodeIdToNeighbors;
  
    public PartSampleNeighborResult(int partId, long[][] nodeIdToNeighbors) {
      this.partId = partId;
      this.nodeIdToNeighbors = nodeIdToNeighbors;
    }
  
    public PartSampleNeighborResult() {
      this(-1, null);
    }
  
    public long[][] getNodeIdToNeighbors() {
      return nodeIdToNeighbors;
    }
  
    public void setNodeIdToNeighbors(
        long[][] nodeIdToNeighbors) {
      this.nodeIdToNeighbors = nodeIdToNeighbors;
    }
  
    public int getPartId() {
      return partId;
    }
  
    @Override
    public void serialize(ByteBuf output) {
      output.writeInt(partId);
      output.writeInt(nodeIdToNeighbors.length);
      for (int i = 0; i < nodeIdToNeighbors.length; i++) {
        if (nodeIdToNeighbors[i] == null) {
          output.writeInt(0);
        } else {
          output.writeInt(nodeIdToNeighbors[i].length);
          for (long value : nodeIdToNeighbors[i]) {
            output.writeLong(value);
          }
        }
      }
    }
  
    @Override
    public void deserialize(ByteBuf input) {
      partId = input.readInt();
      int size = input.readInt();
      nodeIdToNeighbors = new long[size][];
      for (int i = 0; i < size; i++) {
        long[] neighbors = new long[input.readInt()];
        for (int j = 0; j < neighbors.length; j++) {
          neighbors[j] = input.readLong();
        }
        nodeIdToNeighbors[i] = neighbors;
      }
    }
  
    @Override
    public int bufferLen() {
      int len = 8;
      for (int i = 0; i < nodeIdToNeighbors.length; i++) {
        if (nodeIdToNeighbors[i] == null) {
          len += 4;
        } else {
          len += 4;
          len += 8 * nodeIdToNeighbors[i].length;
        }
      }
      return len;
    }
  }
  