content: /**
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You 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
   * http://www.apache.org/licenses/LICENSE-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 org.apache.bigtop.datagenerators.bigpetstore.generators.store;
  
  import java.util.List;
  
  import org.apache.bigtop.datagenerators.bigpetstore.Constants;
  import org.apache.bigtop.datagenerators.bigpetstore.datamodels.Store;
  import org.apache.bigtop.datagenerators.locations.Location;
  import org.apache.bigtop.datagenerators.samplers.SeedFactory;
  import org.apache.bigtop.datagenerators.samplers.pdfs.JointPDF;
  import org.apache.bigtop.datagenerators.samplers.pdfs.ProbabilityDensityFunction;
  import org.apache.bigtop.datagenerators.samplers.samplers.RouletteWheelSampler;
  import org.apache.bigtop.datagenerators.samplers.samplers.Sampler;
  import org.apache.bigtop.datagenerators.samplers.samplers.SequenceSampler;
  
  public class StoreSamplerBuilder
  {
  	private final List<Location> zipcodeTable;
  	private final SeedFactory seedFactory;
  
  	public StoreSamplerBuilder(List<Location> zipcodeTable, SeedFactory seedFactory)
  	{
  		this.zipcodeTable = zipcodeTable;
  		this.seedFactory = seedFactory;
  	}
  
  	public Sampler<Store> build()
  	{
  		Sampler<Integer> idSampler = new SequenceSampler();
  
  		ProbabilityDensityFunction<Location> locationPopulationPDF =
  				new StoreLocationPopulationPDF(zipcodeTable);
  		ProbabilityDensityFunction<Location> locationIncomePDF =
  				new StoreLocationIncomePDF(zipcodeTable, Constants.INCOME_SCALING_FACTOR);
  		ProbabilityDensityFunction<Location> locationJointPDF =
  				new JointPDF<Location>(zipcodeTable, locationPopulationPDF, locationIncomePDF);
  
  		Sampler<Location> locationSampler = RouletteWheelSampler.create(zipcodeTable, locationJointPDF, seedFactory);
  
  		return new StoreSampler(idSampler, locationSampler);
  	}
  
  }
  