flowable实现节点超时自动跳过(二)-------工作日节点超时跳过

星痕

发布于 2019-11-13 13:35:42

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文章被收录于专栏：JAVA后端开发JAVA后端开发

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代码可运行

之前写过一个文章flowable实现节点超时自动跳过实现了流程超时自动跳过的功能.

但后面有朋友问我,能不能实现一个工作日自动跳过的功能,当前跳过,是非节假日的.

后面翻了一下flowable的源码,发现其实实现也是不难的.

首先要有一个节假日的接口,这个需要第三方提供, 该接口传入一个当前时间,及超时天数,计算需要超时跳过的时间.
重写日历时钟的配置,示例代码如下:

@Bean
    public EngineConfigurationConfigurer<SpringProcessEngineConfiguration> customIdGeneratorConfigurer() {
        return engineConfiguration -> {
            engineConfiguration.setIdGenerator(customIdGenerator());
            engineConfiguration.setActivityBehaviorFactory(activityBehaviorFactory());
            engineConfiguration.setTransactionManager(transactionManager);
            //设置全局事件监听
            engineConfiguration.setTypedEventListeners(this.getGlobalFlowableEventListener());
            //需要先初始化时钟
            engineConfiguration.setClock(new DefaultClockImpl());
            //自定义工作日历
            engineConfiguration.setBusinessCalendarManager(this.getBusinessCalendarManager(engineConfiguration.getClock()));
        };
    }


    /**
     * 初始化日历
     * @param clock 时钟
     * @return 日历实现
     */
    private  MapBusinessCalendarManager getBusinessCalendarManager(Clock clock) {

            MapBusinessCalendarManager mapBusinessCalendarManager = new MapBusinessCalendarManager();
            mapBusinessCalendarManager.addBusinessCalendar(DurationBusinessCalendar.NAME, new DurationBusinessCalendar(clock));
            mapBusinessCalendarManager.addBusinessCalendar(DueDateBusinessCalendar.NAME, new AcDueDateBusinessCalendar(clock));
            mapBusinessCalendarManager.addBusinessCalendar(CycleBusinessCalendar.NAME, new CycleBusinessCalendar(clock));

            return mapBusinessCalendarManager;

    }

注意,上述代码中,AcDueDateBusinessCalendar是我重写日历超时的类

重写日历超时的类,示例如下:

public class AcDueDateBusinessCalendar extends DueDateBusinessCalendar {
    public AcDueDateBusinessCalendar(ClockReader clockReader) {
        super(clockReader);
    }

    @Override
    public Date resolveDuedate(String duedate, int maxIterations) {
        try {
            // 这里可以调用工作日接口,返回计算后的工作日时间
            if (duedate.startsWith("P")) {
                return new DateTime(clockReader.getCurrentTime()).plus(Period.parse(duedate)).toDate();
            }

            return DateTime.parse(duedate).toDate();

        } catch (Exception e) {
            throw new FlowableException("couldn't resolve duedate: " + e.getMessage(), e);
        }
    }
}