/*
* Copyright 2016 the original author or authors.
*
* Licensed 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.springframework.integration.dsl;
import java.util.TimeZone;
import java.util.concurrent.TimeUnit;
import org.springframework.scheduling.Trigger;
import org.springframework.scheduling.support.CronTrigger;
import org.springframework.scheduling.support.PeriodicTrigger;
/**
* An utility class to provide {@link PollerSpec}s for
* {@link org.springframework.integration.scheduling.PollerMetadata} configuration
* variants.
*
* @author Artem Bilan
*
* @since 5.0
*/
public final class Pollers {
public static PollerSpec trigger(Trigger trigger) {
return new PollerSpec(trigger);
}
public static PollerSpec fixedRate(long period) {
return fixedRate(period, null);
}
public static PollerSpec fixedRate(long period, TimeUnit timeUnit) {
return fixedRate(period, timeUnit, 0);
}
public static PollerSpec fixedRate(long period, long initialDelay) {
return periodicTrigger(period, null, true, initialDelay);
}
public static PollerSpec fixedRate(long period, TimeUnit timeUnit, long initialDelay) {
return periodicTrigger(period, timeUnit, true, initialDelay);
}
public static PollerSpec fixedDelay(long period) {
return fixedDelay(period, null);
}
public static PollerSpec fixedDelay(long period, TimeUnit timeUnit) {
return fixedDelay(period, timeUnit, 0);
}
public static PollerSpec fixedDelay(long period, long initialDelay) {
return periodicTrigger(period, null, false, initialDelay);
}
public static PollerSpec fixedDelay(long period, TimeUnit timeUnit, long initialDelay) {
return periodicTrigger(period, timeUnit, false, initialDelay);
}
private static PollerSpec periodicTrigger(long period, TimeUnit timeUnit, boolean fixedRate, long initialDelay) {
PeriodicTrigger periodicTrigger = new PeriodicTrigger(period, timeUnit);
periodicTrigger.setFixedRate(fixedRate);
periodicTrigger.setInitialDelay(initialDelay);
return new PollerSpec(periodicTrigger);
}
public static PollerSpec cron(String cronExpression) {
return cron(cronExpression, TimeZone.getDefault());
}
public static PollerSpec cron(String cronExpression, TimeZone timeZone) {
return new PollerSpec(new CronTrigger(cronExpression, timeZone));
}
private Pollers() {
}
}