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.client.psf.init.initlabels;
  
  import com.tencent.angel.graph.client.psf.init.GeneralInitParam;
  import com.tencent.angel.graph.data.GraphNode;
  import com.tencent.angel.graph.data.Labels;
  import com.tencent.angel.graph.utils.GraphMatrixUtils;
  import com.tencent.angel.ml.matrix.psf.update.base.GeneralPartUpdateParam;
  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.ps.storage.vector.element.IElement;
  import com.tencent.angel.psagent.matrix.transport.router.operator.ILongKeyAnyValuePartOp;
  
  public class InitLabels extends UpdateFunc {
  
    /**
     * Create a new UpdateParam
     */
    public InitLabels(GeneralInitParam param) {
      super(param);
    }
  
    public InitLabels() {
      this(null);
    }
  
    @Override
    public void partitionUpdate(PartitionUpdateParam partParam) {
      GeneralPartUpdateParam param = (GeneralPartUpdateParam) partParam;
      ServerLongAnyRow row = GraphMatrixUtils.getPSLongKeyRow(psContext, param);
      ILongKeyAnyValuePartOp keyValuePart = (ILongKeyAnyValuePartOp) param.getKeyValuePart();
  
      long[] nodeIds = keyValuePart.getKeys();
      IElement[] neighbors = keyValuePart.getValues();
  
      row.startWrite();
      try {
        for(int i = 0; i < nodeIds.length; i++) {
          GraphNode graphNode = (GraphNode) row.get(nodeIds[i]);
          if (graphNode == null) {
            graphNode = new GraphNode();
            row.set(nodeIds[i], graphNode);
          }
          graphNode.setLabels(((Labels) neighbors[i]).getWeights());
        }
      } finally {
        row.endWrite();
      }
    }
  }
  