/**
* 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 java.security.GeneralSecurityException;
import java.security.KeyException;
import java.security.KeyManagementException;
import org.apache.camel.CamelExchangeException;
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 ExceptionBuilderTest 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";
private static final String BUSINESS_ERROR_QUEUE = "mock:badBusiness";
private static final String SECURITY_ERROR_QUEUE = "mock:securityError";
public void testNPE() throws Exception {
MockEndpoint result = getMockEndpoint(RESULT_QUEUE);
result.expectedMessageCount(0);
MockEndpoint mock = getMockEndpoint(ERROR_QUEUE);
mock.expectedMessageCount(1);
mock.expectedHeaderReceived(MESSAGE_INFO, "Damm a NPE");
try {
template.sendBody("direct:a", "Hello NPE");
fail("Should have thrown a NullPointerException");
} catch (RuntimeCamelException e) {
assertTrue(e.getCause() instanceof NullPointerException);
// expected
}
MockEndpoint.assertIsSatisfied(result, mock);
}
public void testIOException() throws Exception {
MockEndpoint result = getMockEndpoint(RESULT_QUEUE);
result.expectedMessageCount(0);
MockEndpoint mock = getMockEndpoint(ERROR_QUEUE);
mock.expectedMessageCount(1);
mock.expectedHeaderReceived(MESSAGE_INFO, "Damm somekind of IO exception");
try {
template.sendBody("direct:a", "Hello IO");
fail("Should have thrown a IOException");
} catch (RuntimeCamelException e) {
assertTrue(e.getCause() instanceof IOException);
// expected
}
MockEndpoint.assertIsSatisfied(result, mock);
}
public void testException() throws Exception {
MockEndpoint result = getMockEndpoint(RESULT_QUEUE);
result.expectedMessageCount(0);
MockEndpoint mock = getMockEndpoint(ERROR_QUEUE);
mock.expectedMessageCount(1);
mock.expectedHeaderReceived(MESSAGE_INFO, "Damm just exception");
try {
template.sendBody("direct:a", "Hello Exception");
fail("Should have thrown a Exception");
} catch (RuntimeCamelException e) {
assertTrue(e.getCause() instanceof Exception);
// expected
}
MockEndpoint.assertIsSatisfied(result, mock);
}
public void testMyBusinessException() throws Exception {
MockEndpoint result = getMockEndpoint(RESULT_QUEUE);
result.expectedMessageCount(0);
MockEndpoint mock = getMockEndpoint(BUSINESS_ERROR_QUEUE);
mock.expectedMessageCount(1);
mock.expectedHeaderReceived(MESSAGE_INFO, "Damm my business is not going to well");
try {
template.sendBody("direct:a", "Hello business");
fail("Should have thrown a MyBusinessException");
} catch (RuntimeCamelException e) {
assertTrue(e.getCause() instanceof MyBusinessException);
// expected
}
MockEndpoint.assertIsSatisfied(result, mock);
}
public void testSecurityConfiguredWithTwoExceptions() throws Exception {
// test that we also handles a configuration with 2 or more exceptions
MockEndpoint result = getMockEndpoint(RESULT_QUEUE);
result.expectedMessageCount(0);
MockEndpoint mock = getMockEndpoint(SECURITY_ERROR_QUEUE);
mock.expectedMessageCount(1);
mock.expectedHeaderReceived(MESSAGE_INFO, "Damm some security error");
try {
template.sendBody("direct:a", "I am not allowed to do this");
fail("Should have thrown a GeneralSecurityException");
} catch (RuntimeCamelException e) {
assertTrue(e.getCause() instanceof GeneralSecurityException);
// expected
}
MockEndpoint.assertIsSatisfied(result, mock);
}
public void testSecurityConfiguredWithExceptionList() throws Exception {
// test that we also handles a configuration with a list of exceptions
MockEndpoint result = getMockEndpoint(RESULT_QUEUE);
result.expectedMessageCount(0);
MockEndpoint mock = getMockEndpoint(ERROR_QUEUE);
mock.expectedMessageCount(1);
mock.expectedHeaderReceived(MESSAGE_INFO, "Damm some access error");
try {
template.sendBody("direct:a", "I am not allowed to access this");
fail("Should have thrown a GeneralSecurityException");
} catch (RuntimeCamelException e) {
assertTrue(e.getCause() instanceof IllegalAccessException);
// expected
}
MockEndpoint.assertIsSatisfied(result, mock);
}
public static class MyBaseBusinessException extends Exception {
}
public static class MyBusinessException extends MyBaseBusinessException {
}
protected RouteBuilder createRouteBuilder() throws Exception {
return new RouteBuilder() {
public void configure() throws Exception {
// START SNIPPET: exceptionBuilder1
onException(NullPointerException.class)
.maximumRedeliveries(0)
.setHeader(MESSAGE_INFO, constant("Damm a NPE"))
.to(ERROR_QUEUE);
onException(IOException.class)
.initialRedeliveryDelay(5000L)
.maximumRedeliveries(3)
.maximumRedeliveryDelay(30000L)
.backOffMultiplier(1.0)
.useExponentialBackOff()
.setHeader(MESSAGE_INFO, constant("Damm somekind of IO exception"))
.to(ERROR_QUEUE);
onException(Exception.class)
.initialRedeliveryDelay(1000L)
.maximumRedeliveries(2)
.setHeader(MESSAGE_INFO, constant("Damm just exception"))
.to(ERROR_QUEUE);
onException(MyBaseBusinessException.class)
.initialRedeliveryDelay(1000L)
.maximumRedeliveries(3)
.setHeader(MESSAGE_INFO, constant("Damm my business is not going to well"))
.to(BUSINESS_ERROR_QUEUE);
onException(GeneralSecurityException.class).onException(KeyException.class)
.maximumRedeliveries(1)
.setHeader(MESSAGE_INFO, constant("Damm some security error"))
.to(SECURITY_ERROR_QUEUE);
onException(InstantiationException.class, IllegalAccessException.class, ClassNotFoundException.class)
.maximumRedeliveries(0)
.setHeader(MESSAGE_INFO, constant("Damm some access error"))
.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 IO".equals(s)) {
throw new ConnectException("Forced for testing - can not connect to remote server");
} else if ("Hello Exception".equals(s)) {
throw new CamelExchangeException("Forced for testing", exchange);
} else if ("Hello business".equals(s)) {
throw new MyBusinessException();
} else if ("I am not allowed to do this".equals(s)) {
throw new KeyManagementException();
} else if ("I am not allowed to access this".equals(s)) {
throw new IllegalAccessException();
}
exchange.getOut().setBody("Hello World");
}
}).to("mock:result");
}
};
}
}