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+/**
+ * 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.weatherman.internal;
+
+import org.apache.bigtop.datagenerators.samplers.samplers.ConditionalSampler;
+import org.apache.bigtop.datagenerators.samplers.samplers.Sampler;
+import org.apache.bigtop.datagenerators.weatherman.WeatherRecord;
+import org.joda.time.LocalDate;
+
+public class WeatherSampler implements Sampler<WeatherRecord> {
+ private final ConditionalSampler<WeatherRecordBuilder, WeatherRecordBuilder> tempSampler;
+ private final ConditionalSampler<WeatherRecordBuilder, WeatherRecordBuilder> windSpeedSampler;
+ private final ConditionalSampler<WeatherRecordBuilder, WeatherRecordBuilder> precipitationSampler;
+ private LocalDate date;
+
+ public WeatherSampler(LocalDate startDate,
+ ConditionalSampler<WeatherRecordBuilder, WeatherRecordBuilder> tempSampler,
+ ConditionalSampler<WeatherRecordBuilder, WeatherRecordBuilder> windSpeedSampler,
+ ConditionalSampler<WeatherRecordBuilder, WeatherRecordBuilder> precipitationSampler) {
+ this.tempSampler = tempSampler;
+ this.windSpeedSampler = windSpeedSampler;
+ this.precipitationSampler = precipitationSampler;
+ date = startDate;
+ }
+
+ public WeatherRecord sample() throws Exception {
+ WeatherRecordBuilder weatherRecord = new WeatherRecordBuilder(date);
+
+ weatherRecord = tempSampler.sample(weatherRecord);
+ weatherRecord = windSpeedSampler.sample(weatherRecord);
+ weatherRecord = precipitationSampler.sample(weatherRecord);
+
+ date = date.plusDays(WeatherConstants.WEATHER_TIMESTEP);
+
+ return weatherRecord.build();
+ }
+}