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.lda.psf;
  
  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 io.netty.buffer.ByteBuf;
  
  import java.util.ArrayList;
  import java.util.List;
  
  public class LikelihoodParam extends GetParam {
  
    public static class LikelihoodPartParam extends PartitionGetParam {
      private float beta;
  
      public LikelihoodPartParam(int matrixId, PartitionKey pkey, float beta) {
        super(matrixId, pkey);
        this.beta = beta;
      }
  
      public LikelihoodPartParam() {
        super();
      }
  
      @Override public void serialize(ByteBuf buf) {
        super.serialize(buf);
        buf.writeFloat(beta);
      }
  
      @Override public void deserialize(ByteBuf buf) {
        super.deserialize(buf);
        beta = buf.readFloat();
      }
  
      @Override public int bufferLen() {
        return super.bufferLen() + 4;
      }
  
      public float getBeta() {
        return beta;
      }
    }
  
  
    private final float beta;
  
    public LikelihoodParam(int matrixId, float beta) {
      super(matrixId);
      this.beta = beta;
    }
  
    @Override public List<PartitionGetParam> split() {
      List<PartitionGetParam> params = new ArrayList<>();
      List<PartitionKey> pkeys = PSAgentContext.get().getMatrixMetaManager().getPartitions(matrixId);
  
      for (PartitionKey pkey : pkeys) {
        params.add(new LikelihoodPartParam(matrixId, pkey, beta));
      }
  
      return params;
    }
  }