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.ml.matrix.psf.get.getrow;
  
  import com.tencent.angel.PartitionKey;
  import com.tencent.angel.ml.matrix.psf.get.base.GetParam;
  import com.tencent.angel.ml.matrix.psf.get.base.PartitionGetParam;
  import com.tencent.angel.psagent.PSAgentContext;
  
  import java.util.ArrayList;
  import java.util.List;
  
  /**
   * The parameter of get row function.
   */
  public class GetRowParam extends GetParam {
  
    /**
     * row index
     */
    private final int rowIndex;
  
    /**
     * Create a new GetRowParam.
     *
     * @param matrixId matrix id
     * @param rowIndex row index
     */
    public GetRowParam(int matrixId, int rowIndex) {
      super(matrixId);
      this.rowIndex = rowIndex;
    }
  
    /**
     * Get row index.
     *
     * @return int row index.
     */
    public int getRowIndex() {
      return rowIndex;
    }
  
    @Override public List<PartitionGetParam> split() {
      List<PartitionKey> parts =
        PSAgentContext.get().getMatrixMetaManager().getPartitions(matrixId, rowIndex);
      int size = parts.size();
  
      List<PartitionGetParam> partParams = new ArrayList<PartitionGetParam>(size);
  
      for (int i = 0; i < size; i++) {
        partParams.add(new PartitionGetRowParam(matrixId, rowIndex, parts.get(i)));
      }
  
      return partParams;
    }
  
    @Override public String toString() {
      return "GetRowParam{" + "rowIndex=" + rowIndex + "} " + super.toString();
    }
  }
  