Examples with ExceptionHandler com.shulie.instrument.simulator.message.exception.ExceptionHandler used on opensource projects

Example 1 with ExceptionHandler

use of com.shulie.instrument.simulator.message.exception.ExceptionHandler in project LinkAgent by shulieTech.

the class EventListenerHandler method handleEvent.

/**
 * 调用出发事件处理&调用执行流程控制
 *
 * @param listenerId 处理器ID
 * @param processId  调用过程ID
 * @param invokeId   调用ID
 * @param event      调用事件
 * @param processor  事件处理器
 * @return 处理返回结果
 * @throws Throwable 当出现未知异常时,且事件处理器为中断流程事件时抛出
 */
private final Result handleEvent(final int listenerId, final int processId, final int invokeId, final Class clazz, final Event event, final InvokeProcessor processor) throws Throwable {
    final EventListener listener = processor.listener;
    /**
     * 如果当前事件不在事件监听器处理列表中，则直接返回，不处理事件
     */
    if (!ArrayUtils.contains(processor.eventEventTypes, event.getType())) {
        return Result.RESULT_NONE;
    }
    try {
        if (isDebugEnabled) {
            logger.debug("SIMULATOR: on-event: event -> eventType={}, processId={}, invokeId={}, listenerId={}", event.getType(), processId, invokeId, listenerId);
        }
        /**
         * 调用事件处理
         */
        ProcessControlEntity pce = listener.onEvent(event);
        int state = pce.getState();
        if (state != ProcessControlEntity.NONE_IMMEDIATELY) {
            return processInterrupt(listenerId, processId, invokeId, clazz, event, processor, pce);
        }
    } catch (ProcessControlException pce) {
        return processInterrupt(listenerId, processId, invokeId, clazz, event, processor, pce.toEntity());
    } catch (Throwable throwable) {
        /**
         * 如果当前事件处理器是可中断的事件处理器,则对外抛出UnCaughtException
         * 中断当前方法
         */
        if (ReflectUtils.isInterruptEventHandler(listener)) {
            throw throwable;
        } else {
            /**
             * 普通事件处理器则可以打个日志后,直接放行
             */
            ExceptionHandler exceptionHandler = getExceptionHandler();
            if (exceptionHandler != null) {
                exceptionHandler.handleException(throwable, String.format("on-event: event -> eventType=%s, processId=%s, invokeId=%s, listenerId=%s occur an error.", EventType.name(event.getType()), processId, invokeId, listenerId), listener);
            } else {
                logger.warn("SIMULATOR: on-event: event -> eventType={}, processId={}, invokeId={}, listenerId={} occur an " + "error.", event.getType(), processId, invokeId, listenerId, throwable);
            }
        }
    }
    /**
     * 默认返回不进行任何流程变更
     */
    return Result.RESULT_NONE;
}