rmblworx.tools.timey.SimpleAlarm.java Source code

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Here is the source code for rmblworx.tools.timey.SimpleAlarm.java

Source

package rmblworx.tools.timey;

import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;

import rmblworx.tools.timey.exception.NullArgumentException;
import rmblworx.tools.timey.exception.ValueMinimumArgumentException;

/*
 * Copyright 2014-2015 Christian Raue
 * MIT License http://opensource.org/licenses/mit-license.php
 */
/**
 * @author mmatthies
 */
class SimpleAlarm implements ApplicationContextAware {

    /**
     * Gre des Thread-Pools.
     */
    private static final int THREAD_POOL_SIZE = 1;
    /**
     * Spring-Anwendungskontext.
     */
    private ApplicationContext springContext;

    @Override
    public void setApplicationContext(final ApplicationContext applicationContext) throws BeansException {
        this.springContext = applicationContext;
    }

    /**
     * Startet die Alarmerkennung.
     *
     * @param delayPerThread
     *            Mazahl fr den Ausfuehrungsintervall
     * @param timeUnit
     *            Einheit fr den Ausfuehrungsintervall
     */
    public void startAlarmdetection(final int delayPerThread, final TimeUnit timeUnit) {
        if (delayPerThread < 1) {
            throw new ValueMinimumArgumentException();
        } else if (timeUnit == null) {
            throw new NullArgumentException();
        }
        final ScheduledExecutorService scheduler = Executors.newScheduledThreadPool(THREAD_POOL_SIZE);
        final AlarmRunnable alarmDetection = (AlarmRunnable) this.springContext.getBean("alarmRunnable");

        scheduler.scheduleAtFixedRate(alarmDetection, 0, delayPerThread, timeUnit);
    }
}