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.embedding;
  
  import com.tencent.angel.PartitionKey;
  import com.tencent.angel.ml.matrix.psf.update.base.PartitionUpdateParam;
  import com.tencent.angel.ml.matrix.psf.update.base.UpdateParam;
  import com.tencent.angel.psagent.PSAgentContext;
  import it.unimi.dsi.fastutil.ints.IntOpenHashSet;
  
  import java.util.ArrayList;
  import java.util.List;
  
  public class InitParam extends UpdateParam {
  
  
    private int numPartitions;
    private int maxIndex;
    private int maxLength;
    private int negative;
    private int order;
    private int partDim;
    private int window;
  
    public InitParam(int matrixId,
                     int numPartitions,
                     int maxIndex,
                     int maxLength,
                     int negative,
                     int order,
                     int partDim,
                     int window) {
      super(matrixId);
  
      this.numPartitions = numPartitions;
      this.maxIndex = maxIndex;
      this.maxLength = maxLength;
      this.negative = negative;
      this.order = order;
      this.partDim = partDim;
      this.window = window;
    }
  
    @Override
    public List<PartitionUpdateParam> split() {
      List<PartitionKey> pkeys = PSAgentContext.get().getMatrixMetaManager()
          .getPartitions(matrixId);
  
      IntOpenHashSet serverIds = new IntOpenHashSet();
      List<PartitionUpdateParam> params = new ArrayList<>();
      for (PartitionKey pkey : pkeys) {
        int serverId = PSAgentContext.get().getMatrixMetaManager()
            .getMasterPS(pkey).getIndex();
        if (!serverIds.contains(serverId)) {
          serverIds.add(serverId);
          params.add(new InitPartitionParam(matrixId,
              pkey,
              numPartitions,
              maxIndex,
              maxLength,
              negative,
              order,
              partDim,
              window));
        }
      }
      return params;
    }
  }
  