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.purchase;
  
  import java.util.Map;
  
  import org.apache.bigtop.datagenerators.bigpetstore.datamodels.Product;
  import org.apache.bigtop.datagenerators.samplers.SeedFactory;
  import org.apache.bigtop.datagenerators.samplers.markovmodels.MarkovModel;
  import org.apache.bigtop.datagenerators.samplers.markovmodels.MarkovProcess;
  import org.apache.bigtop.datagenerators.samplers.samplers.Sampler;
  
  import com.google.common.collect.ImmutableMap;
  import com.google.common.collect.ImmutableSet;
  import com.google.common.collect.Maps;
  
  public class MarkovPurchasingModel implements PurchasingModel<MarkovModel<Product>>
  {
  
  	private static final long serialVersionUID = 3098355461347511619L;
  	ImmutableMap<String, MarkovModel<Product>> productCategoryProfiles;
  
  	public MarkovPurchasingModel(Map<String, MarkovModel<Product>> productCategoryProfiles)
  	{
  		this.productCategoryProfiles = ImmutableMap.copyOf(productCategoryProfiles);
  	}
  
  	@Override
  	public ImmutableSet<String> getProductCategories()
  	{
  		return productCategoryProfiles.keySet();
  	}
  
  	@Override
  	public MarkovModel<Product> getProfile(String productCategory)
  	{
  		return productCategoryProfiles.get(productCategory);
  	}
  
  	@Override
  	public PurchasingProcesses buildProcesses(SeedFactory seedFactory)
  	{
  		Map<String, Sampler<Product>> processes = Maps.newHashMap();
  		for(String category : getProductCategories())
  		{
  			MarkovModel<Product> model = getProfile(category);
  			processes.put(category, new MarkovProcess<Product>(model, seedFactory));
  		}
  
  		return new PurchasingProcesses(processes);
  	}
  }
  