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.sample.sampleneighbor;
  
  import com.tencent.angel.graph.client.psf.sample.SampleUtils;
  import com.tencent.angel.graph.utils.GraphMatrixUtils;
  import com.tencent.angel.ml.matrix.psf.get.base.PartitionGetParam;
  import com.tencent.angel.ml.matrix.psf.get.base.PartitionGetResult;
  import com.tencent.angel.ps.storage.vector.ServerLongAnyRow;
  import com.tencent.angel.psagent.matrix.transport.router.operator.ILongKeyLongValuePartOp;
  import it.unimi.dsi.fastutil.longs.Long2ObjectOpenHashMap;
  import scala.Tuple2;
  
  public class SampleNeighborWithFilter extends SampleNeighborWithType {
  
    /**
     * Create a new DefaultGetFunc.
     *
     * @param param parameter of get udf
     */
    public SampleNeighborWithFilter(SampleNeighborWithFilterParam param) {
      super(param);
    }
  
    public SampleNeighborWithFilter() {
      this(null);
    }
  
    @Override
    public PartitionGetResult partitionGet(PartitionGetParam partParam) {
      PartSampleNeighborWithFilterParam sampleParam = (PartSampleNeighborWithFilterParam) partParam;
      ServerLongAnyRow row = GraphMatrixUtils.getPSLongKeyRow(psContext, partParam);
  
      ILongKeyLongValuePartOp split = (ILongKeyLongValuePartOp) sampleParam.getIndicesToFilterPart();
      long[] nodeIds = split.getKeys();
      long[] filterWithNeighKeys = split.getValues();
      long[] filterWithoutNeighKeys = sampleParam.getFilterWithoutNeighKeys();
  
      SampleType sampleType = sampleParam.getSampleType();
      switch (sampleType) {
        case NODE:
        case EDGE:{
          Tuple2<Long2ObjectOpenHashMap<long[]>, Long2ObjectOpenHashMap<int[]>> nodeId2SampleNeighbors = SampleUtils
              .sampleWithType(row, nodeIds, sampleType,
                  filterWithNeighKeys, filterWithoutNeighKeys, System.currentTimeMillis());
  
          return new PartSampleNeighborResultWithType(sampleParam.getPartKey().getPartitionId(),
              nodeId2SampleNeighbors._1, nodeId2SampleNeighbors._2, sampleType);
        }
  
        default: {
          throw new UnsupportedOperationException("Not support sample type " + sampleType + " now");
        }
      }
    }
  }
  