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.psf.hyperanf;
  
  import com.tencent.angel.graph.utils.GraphMatrixUtils;
  import com.tencent.angel.ml.matrix.psf.update.base.PartitionUpdateParam;
  import com.tencent.angel.ml.matrix.psf.update.base.UpdateFunc;
  import com.tencent.angel.ps.storage.vector.ServerLongAnyRow;
  import com.tencent.angel.psagent.matrix.transport.router.operator.ILongKeyPartOp;
  
  public class InitHyperLogLog extends UpdateFunc {
  
    public InitHyperLogLog(int matrixId, int p, int sp, long[] nodes, long seed) {
      super(new InitHyperLogLogParam(matrixId, p, sp, nodes, seed));
    }
  
    public InitHyperLogLog(InitHyperLogLogParam param) {
      super(param);
    }
  
    public InitHyperLogLog() {
      this(null);
    }
  
    @Override
    public void partitionUpdate(PartitionUpdateParam partParam) {
      InitHyperLogLogPartParam param = (InitHyperLogLogPartParam) partParam;
      ServerLongAnyRow row = GraphMatrixUtils.getPSLongKeyRow(psContext, param);
  
      // Get nodes and features
      ILongKeyPartOp split = (ILongKeyPartOp) param.getNodes();
      long[] nodes = split.getKeys();
      int p = param.getP();
      int sp = param.getSp();
      long seed = param.getSeed();
  
      row.startWrite();
      try {
        for (int i = 0; i < nodes.length; i++) {
          row.set(nodes[i], new HyperLogLogPlusElement(nodes[i], p, sp, seed));
        }
      } finally {
        row.endWrite();
      }
  
    }
  
  }