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.sona.psf.pagerank;
  import com.tencent.angel.ml.math2.vector.Vector;
  import com.tencent.angel.ml.matrix.psf.update.base.PartitionUpdateParam;
  import com.tencent.angel.ml.matrix.psf.update.base.UpdateParam;
  import com.tencent.angel.ml.matrix.psf.update.update.IncrementRows;
  import com.tencent.angel.ml.matrix.psf.update.update.PartIncrementRowsParam;
  import com.tencent.angel.ps.storage.vector.ServerRow;
  import com.tencent.angel.psagent.matrix.oplog.cache.RowUpdateSplit;
  
  import java.util.List;
  
  public class MyIncrement extends IncrementRows {
  
    public MyIncrement(UpdateParam param) {
      super(param);
    }
  
    public MyIncrement() {
      this(null);
    }
  
    @Override
    public void partitionUpdate(PartitionUpdateParam partParam) {
      PartIncrementRowsParam param = (PartIncrementRowsParam) partParam;
      List<RowUpdateSplit> updates = param.getUpdates();
      for (RowUpdateSplit update: updates) {
        ServerRow row = psContext.getMatrixStorageManager().getRow(param.getPartKey(), update.getRowId());
        try {
          row.startWrite();
          Vector vector = getVector(param.getMatrixId(), update.getRowId(), param.getPartKey());
          vector.iadd(update.getVector());
        } finally {
          row.endWrite();
        }
      }
    }
  }
  