/**
* 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.builder;
import java.io.IOException;
import java.net.ConnectException;
import org.apache.camel.ContextTestSupport;
import org.apache.camel.Exchange;
import org.apache.camel.Processor;
import org.apache.camel.RuntimeCamelException;
import org.apache.camel.component.mock.MockEndpoint;
/**
* Unit test to test exception configuration
*/
public class ExceptionBuilderWithHandledExceptionTest extends ContextTestSupport {
private static final String MESSAGE_INFO = "messageInfo";
private static final String RESULT_QUEUE = "mock:result";
private static final String ERROR_QUEUE = "mock:error";
public void testHandledException() throws Exception {
MockEndpoint result = getMockEndpoint(RESULT_QUEUE);
result.expectedMessageCount(0);
MockEndpoint mock = getMockEndpoint(ERROR_QUEUE);
mock.expectedMessageCount(1);
mock.expectedHeaderReceived(MESSAGE_INFO, "Handled exchange with NullPointerException");
template.sendBody("direct:a", "Hello NPE");
MockEndpoint.assertIsSatisfied(result, mock);
}
public void testHandledExceptionWithExpression() throws Exception {
MockEndpoint result = getMockEndpoint(RESULT_QUEUE);
result.expectedMessageCount(0);
MockEndpoint mock = getMockEndpoint(ERROR_QUEUE);
mock.expectedMessageCount(1);
mock.expectedHeaderReceived(MESSAGE_INFO, "Handled exchange with IOException");
template.sendBodyAndHeader("direct:a", "Hello IOE", "foo", "bar");
MockEndpoint.assertIsSatisfied(result, mock);
}
public void testUnhandledException() throws Exception {
MockEndpoint result = getMockEndpoint(RESULT_QUEUE);
result.expectedMessageCount(0);
MockEndpoint mock = getMockEndpoint(ERROR_QUEUE);
mock.expectedMessageCount(1);
mock.expectedHeaderReceived(MESSAGE_INFO, "Handled exchange with IOException");
try {
template.sendBodyAndHeader("direct:a", "Hello IOE", "foo", "something that does not match");
fail("Should have thrown a IOException");
} catch (RuntimeCamelException e) {
assertTrue(e.getCause() instanceof IOException);
// expected, failure is not handled because predicate doesn't match
}
MockEndpoint.assertIsSatisfied(result, mock);
}
protected RouteBuilder createRouteBuilder() throws Exception {
return new RouteBuilder() {
public void configure() throws Exception {
// START SNIPPET: exceptionBuilder1
onException(NullPointerException.class)
.maximumRedeliveries(0)
.handled(true)
.setHeader(MESSAGE_INFO, constant("Handled exchange with NullPointerException"))
.to(ERROR_QUEUE);
onException(IOException.class)
.maximumRedeliveries(0)
.handled(header("foo").isEqualTo("bar"))
.setHeader(MESSAGE_INFO, constant("Handled exchange with IOException"))
.to(ERROR_QUEUE);
// END SNIPPET: exceptionBuilder1
from("direct:a").process(new Processor() {
public void process(Exchange exchange) throws Exception {
String s = exchange.getIn().getBody(String.class);
if ("Hello NPE".equals(s)) {
throw new NullPointerException();
} else if ("Hello IOE".equals(s)) {
// specialized IOException
throw new ConnectException("Forced for testing - can not connect to remote server");
}
exchange.getOut().setBody("Hello World");
}
}).to("mock:result");
}
};
}
}