protected void handleException(Exchange exchange, RedeliveryData data) { Exception e = exchange.getException(); // store the original caused exception in a property, so we can restore it later exchange.setProperty(Exchange.EXCEPTION_CAUGHT, e); // find the error handler to use (if any) OnExceptionDefinition exceptionPolicy = getExceptionPolicy(exchange, e); if (exceptionPolicy != null) { data.currentRedeliveryPolicy = exceptionPolicy.createRedeliveryPolicy( exchange.getContext(), data.currentRedeliveryPolicy); data.handledPredicate = exceptionPolicy.getHandledPolicy(); data.continuedPredicate = exceptionPolicy.getContinuedPolicy(); data.retryWhilePredicate = exceptionPolicy.getRetryWhilePolicy(); data.useOriginalInMessage = exceptionPolicy.isUseOriginalMessage(); data.asyncDelayedRedelivery = exceptionPolicy.isAsyncDelayedRedelivery(exchange.getContext()); // route specific failure handler? Processor processor = exceptionPolicy.getErrorHandler(); if (processor != null) { data.failureProcessor = processor; } // route specific on redelivery? processor = exceptionPolicy.getOnRedelivery(); if (processor != null) { data.onRedeliveryProcessor = processor; } } // only log if not failure handled or not an exhausted unit of work if (!ExchangeHelper.isFailureHandled(exchange) && !ExchangeHelper.isUnitOfWorkExhausted(exchange)) { String msg = "Failed delivery for exchangeId: " + exchange.getExchangeId() + ". On delivery attempt: " + data.redeliveryCounter + " caught: " + e; logFailedDelivery(true, false, false, exchange, msg, data, e); } data.redeliveryCounter = incrementRedeliveryCounter(exchange, e, data); }
/** * Determines if redelivery is enabled by checking if any of the redelivery policy settings may * allow redeliveries. * * @return <tt>true</tt> if redelivery is possible, <tt>false</tt> otherwise * @throws Exception can be thrown */ private boolean determineIfRedeliveryIsEnabled() throws Exception { // determine if redeliver is enabled either on error handler if (getRedeliveryPolicy().getMaximumRedeliveries() != 0) { // must check for != 0 as (-1 means redeliver forever) return true; } if (retryWhilePolicy != null) { return true; } // or on the exception policies if (!exceptionPolicies.isEmpty()) { // walk them to see if any of them have a maximum redeliveries > 0 or retry until set for (OnExceptionDefinition def : exceptionPolicies.values()) { if (def.getRedeliveryPolicy() != null) { String ref = def.getRedeliveryPolicyRef(); if (ref != null) { // lookup in registry if ref provided RedeliveryPolicy policy = CamelContextHelper.mandatoryLookup(camelContext, ref, RedeliveryPolicy.class); if (policy.getMaximumRedeliveries() != 0) { // must check for != 0 as (-1 means redeliver forever) return true; } } else { Integer max = CamelContextHelper.parseInteger( camelContext, def.getRedeliveryPolicy().getMaximumRedeliveries()); if (max != null && max != 0) { // must check for != 0 as (-1 means redeliver forever) return true; } } } if (def.getRetryWhilePolicy() != null || def.getRetryWhile() != null) { return true; } } } return false; }