SimpleTimer.java

/**
 * Copyright 2017 Netflix, Inc.
 *
 * 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 com.netflix.raigad.scheduler;

import org.quartz.Scheduler;
import org.quartz.SimpleTrigger;
import org.quartz.Trigger;

import java.text.ParseException;
import java.util.Date;

/**
 * SimpleTimer allows jobs to run starting from specified time occurring at
 * regular frequency's. Frequency of the execution timestamp since epoch.
 */
public class SimpleTimer implements TaskTimer
{
    private SimpleTrigger trigger;

    public SimpleTimer(String name, long interval)
    {
        this.trigger = new SimpleTrigger(name, SimpleTrigger.REPEAT_INDEFINITELY, interval);
    }

    /**
     * Run once at given time...
     */
    public SimpleTimer(String name, String group, long startTime)
    {
        this.trigger = new SimpleTrigger(name, group, new Date(startTime));
    }

    /**
     * Run immediatly and dont do that again.
     */
    public SimpleTimer(String name)
    {
        this.trigger = new SimpleTrigger(name, Scheduler.DEFAULT_GROUP);
    }

    public Trigger getTrigger() throws ParseException
    {
        trigger.setMisfireInstruction(SimpleTrigger.MISFIRE_INSTRUCTION_FIRE_NOW);
        return trigger;
    }
}