Java tutorial
/** * Licensed to the Hummingbird Foundation (HF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The HF 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.hbird.business.navigation.processors; import org.apache.camel.Handler; import org.hbird.business.navigation.configuration.PredictionConfigurationBase; import org.hbird.business.navigation.request.PredictionRequest; import org.hbird.exchange.util.Dates; import org.joda.time.DateTime; import org.joda.time.DateTimeZone; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.stereotype.Component; /** * */ @Component public class TimeRangeCalulator { private static final Logger LOG = LoggerFactory.getLogger(TimeRangeCalulator.class); @Handler public PredictionRequest<?> calculate(PredictionRequest<?> request) { PredictionConfigurationBase config = request.getConfiguration(); int period = config.getPredictionPeriod(); long startTime = request.getStartTime(); DateTime start = new DateTime(startTime, DateTimeZone.UTC).withMinuteOfHour(0).withSecondOfMinute(0) .withMillisOfSecond(0); DateTime end = start.plusHours(period); LOG.info("Prediction period {}h; from {} to {}", new Object[] { period, start.toString(Dates.ISO_8601_DATE_FORMATTER), end.toString(Dates.ISO_8601_DATE_FORMATTER) }); request.setStartTime(start.getMillis()); request.setEndTime(end.getMillis()); return request; } }