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Diffstat (limited to 'bigtop-data-generators/bigtop-weatherman/src/main/java/org/apache/bigtop/datagenerators/weatherman/internal/WeatherSampler.java')
-rw-r--r-- | bigtop-data-generators/bigtop-weatherman/src/main/java/org/apache/bigtop/datagenerators/weatherman/internal/WeatherSampler.java | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/bigtop-data-generators/bigtop-weatherman/src/main/java/org/apache/bigtop/datagenerators/weatherman/internal/WeatherSampler.java b/bigtop-data-generators/bigtop-weatherman/src/main/java/org/apache/bigtop/datagenerators/weatherman/internal/WeatherSampler.java new file mode 100644 index 00000000..3885caa5 --- /dev/null +++ b/bigtop-data-generators/bigtop-weatherman/src/main/java/org/apache/bigtop/datagenerators/weatherman/internal/WeatherSampler.java @@ -0,0 +1,50 @@ +/** + * 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(); + } +} |