RepeatTask.java

package cn.mutils.core.task;

import cn.mutils.core.event.IListener;

@SuppressWarnings("UnnecessaryInterfaceModifier")
public class RepeatTask extends Task {

    public static interface IRepeatTaskListener extends IListener {

        public void onStart(RepeatTask task);

        public void onStop(RepeatTask task);

        /**
         * Prepare repeat
         *
         * @param task Task
         * @return return true to intercept repeat
         */
        public boolean onPreRepeat(RepeatTask task);

        public abstract void onRepeat(RepeatTask task);

    }

    public static abstract class RepeatTaskListener implements IRepeatTaskListener {

        public void onStart(RepeatTask task) {

        }

        public void onStop(RepeatTask task) {

        }

        public boolean onPreRepeat(RepeatTask task) {
            return false;
        }

    }

    protected String mName = "";

    protected int mCount = 1;

    public String getName() {
        return mName;
    }

    public void setName(String name) {
        if (mStarted || mStopped) {
            return;
        }
        mName = name;
    }

    public void setCount(int count) {
        if (mStarted || mStopped) {
            return;
        }
        mCount = count;
    }

    public void addListener(RepeatTaskListener listener) {
        super.addListener(listener);
    }

    public void repeat() {
        if (!isRunning()) {
            return;
        }
        if (mCount <= 0) {
            stop();
            return;
        }
        if (onPreRepeat()) {// Intercept repeat
            stop();
            return;
        }
        mCount--;
        onRepeat();
    }

    protected boolean onPreRepeat() {
        for (IRepeatTaskListener listener : getListeners(IRepeatTaskListener.class)) {
            if (listener.onPreRepeat(this)) {
                return true;
            }
        }
        return false;
    }

    protected void onRepeat() {
        for (IRepeatTaskListener listener : getListeners(IRepeatTaskListener.class)) {
            listener.onRepeat(this);
        }
    }

    @Override
    protected void onStart() {
        for (IRepeatTaskListener listener : getListeners(IRepeatTaskListener.class)) {
            listener.onStart(this);
        }
        repeat();
    }

    @Override
    protected void onStop() {
        for (IRepeatTaskListener listener : getListeners(IRepeatTaskListener.class)) {
            listener.onStop(this);
        }
    }

}