| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.camel.processor.onexception; |
| |
| import org.apache.camel.Body; |
| import org.apache.camel.ContextTestSupport; |
| import org.apache.camel.Exchange; |
| import org.apache.camel.ExchangeException; |
| import org.apache.camel.Header; |
| import org.apache.camel.Processor; |
| import org.apache.camel.builder.RouteBuilder; |
| import org.apache.camel.impl.JndiRegistry; |
| |
| /** |
| * Unit test for the retry until predicate |
| */ |
| public class OnExceptionRetryUntilWithDefaultErrorHandlerTest extends ContextTestSupport { |
| |
| private static int invoked; |
| |
| @Override |
| protected JndiRegistry createRegistry() throws Exception { |
| JndiRegistry jndi = super.createRegistry(); |
| jndi.bind("myRetryHandler", new MyRetryBean()); |
| return jndi; |
| } |
| |
| public void testRetryUntil() throws Exception { |
| context.addRoutes(new RouteBuilder() { |
| @Override |
| public void configure() throws Exception { |
| // as its based on a unit test we do not have any delays between and do not log the stack trace |
| errorHandler(defaultErrorHandler().maximumRedeliveries(1).logStackTrace(false)); |
| |
| onException(MyFunctionalException.class) |
| .retryWhile(bean("myRetryHandler")) |
| .handled(true) |
| .transform().constant("Sorry").stop(); |
| |
| from("direct:start").process(new Processor() { |
| public void process(Exchange exchange) throws Exception { |
| throw new MyFunctionalException("Sorry you cannot do this"); |
| } |
| }); |
| } |
| }); |
| |
| Object out = template.requestBody("direct:start", "Hello World"); |
| assertEquals("Sorry", out); |
| assertEquals(3, invoked); |
| } |
| |
| public class MyRetryBean { |
| |
| // using bean binding we can bind the information from the exchange to the types we have in our method signature |
| public boolean retry(@Header(Exchange.REDELIVERY_COUNTER) Integer counter, @Body String body, @ExchangeException Exception causedBy) { |
| // NOTE: counter is the redelivery attempt, will start from 1 |
| invoked++; |
| |
| assertEquals("Hello World", body); |
| assertTrue(causedBy instanceof MyFunctionalException); |
| |
| // we can of course do what ever we want to determine the result but this is a unit test so we end after 3 attempts |
| return counter < 3; |
| } |
| } |
| |
| } |