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.namegenerator;
  
  import org.apache.bigtop.datagenerators.samplers.SeedFactory;
  import org.apache.bigtop.datagenerators.samplers.samplers.RouletteWheelSampler;
  import org.apache.bigtop.datagenerators.samplers.samplers.Sampler;
  import org.apache.bigtop.datagenerators.samplers.wfs.MultinomialWF;
  import org.apache.commons.lang3.tuple.Pair;
  
  public class NameGenerator implements Sampler<Pair<String, String>>
  {
  	private final Sampler<String> firstNameSampler;
  	private final Sampler<String> lastNameSampler;
  
  	public NameGenerator(SeedFactory seedFactory) throws Exception
  	{
  		Names names = new NameReader().readData();
  
  		firstNameSampler = RouletteWheelSampler.create(new MultinomialWF<String>(names.getFirstNames()).normalize(), seedFactory);
  		lastNameSampler = RouletteWheelSampler.create(new MultinomialWF<String>(names.getLastNames()).normalize(), seedFactory);
  	}
  
  	public Pair<String, String> sample() throws Exception
  	{
  		return Pair.of(firstNameSampler.sample(), lastNameSampler.sample());
  	}
  }
  