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.PartitionKey;
  import com.tencent.angel.ml.matrix.MatrixMeta;
  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 com.tencent.angel.psagent.matrix.transport.router.KeyValuePart;
  import com.tencent.angel.psagent.matrix.transport.router.RouterUtils;
  import java.util.ArrayList;
  import java.util.List;
  
  public class InitHyperVertexParam extends UpdateParam {
  
    private long[] nodes;
    private int[] nodeTags;
    private int p;
    private int sp;
    private long seed;
  
    public InitHyperVertexParam(int matrixId, int p, int sp, long[] nodes, int[] nodeTags, long seed) {
      super(matrixId);
      this.p = p;
      this.sp = sp;
      this.nodes = nodes;
      this.nodeTags = nodeTags;
      this.seed = seed;
    }
  
    @Override
    public List<PartitionUpdateParam> split() {
      MatrixMeta meta = PSAgentContext.get().getMatrixMetaManager().getMatrixMeta(matrixId);
      PartitionKey[] parts = meta.getPartitionKeys();
  
      KeyValuePart[] splits = RouterUtils.split(meta, 0, nodes, nodeTags, false);
      assert parts.length == splits.length;
  
      List<PartitionUpdateParam> partParams = new ArrayList<>(parts.length);
      for (int i = 0; i < parts.length; i++) {
        if (splits[i] != null && splits[i].size() > 0) {
          partParams.add(new InitHyperVertexPartParam(matrixId, parts[i], splits[i], p, sp, seed));
        }
      }
  
      return partParams;
    }
  
  }