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.transaction;
  
  import java.util.List;
  
  import org.apache.bigtop.datagenerators.bigpetstore.datamodels.Customer;
  import org.apache.bigtop.datagenerators.bigpetstore.datamodels.Product;
  import org.apache.bigtop.datagenerators.bigpetstore.datamodels.Transaction;
  import org.apache.bigtop.datagenerators.samplers.samplers.ConditionalSampler;
  import org.apache.bigtop.datagenerators.samplers.samplers.Sampler;
  
  public class TransactionSampler implements Sampler<Transaction>
  {
  	private final Sampler<Double> timeSampler;
  	private final ConditionalSampler<List<Product>, Double> purchasesSampler;
  	private final Sampler<Integer> idSampler;
  	private final Customer customer;
  
  	public TransactionSampler(Customer customer, Sampler<Double> timeSampler,
  			ConditionalSampler<List<Product>, Double> purchasesSampler,
  			Sampler<Integer> idSampler)
  	{
  		this.timeSampler = timeSampler;
  		this.customer = customer;
  		this.purchasesSampler = purchasesSampler;
  		this.idSampler = idSampler;
  	}
  
  
  	public Transaction sample() throws Exception
  	{
  		Double transactionTime = timeSampler.sample();
  		List<Product> purchase = purchasesSampler.sample(transactionTime);
  		Integer id = idSampler.sample();
  
  		Transaction transaction = new Transaction(id, customer, customer.getStore(),
  				transactionTime, purchase);
  
  		return transaction;
  	}
  
  }
  