| /** |
| * 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; |
| |
| import javax.activation.DataHandler; |
| import javax.activation.FileDataSource; |
| |
| import org.apache.camel.ContextTestSupport; |
| import org.apache.camel.Exchange; |
| import org.apache.camel.ExchangePattern; |
| import org.apache.camel.Message; |
| import org.apache.camel.Processor; |
| import org.apache.camel.builder.RouteBuilder; |
| import org.apache.camel.component.mock.MockEndpoint; |
| |
| /** |
| * @version |
| */ |
| public class PipelineTest extends ContextTestSupport { |
| |
| /** |
| * Simple processor the copies the in to the out and increments a counter. |
| * Used to verify that the pipeline actually takes the output of one stage of |
| * the pipe and feeds it in as input into the next stage. |
| */ |
| private final class InToOut implements Processor { |
| public void process(Exchange exchange) throws Exception { |
| exchange.getOut().copyFrom(exchange.getIn()); |
| Integer counter = exchange.getIn().getHeader("copy-counter", Integer.class); |
| if (counter == null) { |
| counter = 0; |
| } |
| exchange.getOut().setHeader("copy-counter", counter + 1); |
| } |
| } |
| |
| /** |
| * Simple processor the copies the in to the fault and increments a counter. |
| */ |
| private final class InToFault implements Processor { |
| public void process(Exchange exchange) throws Exception { |
| exchange.getOut().setFault(true); |
| exchange.getOut().setBody(exchange.getIn().getBody()); |
| Integer counter = exchange.getIn().getHeader("copy-counter", Integer.class); |
| if (counter == null) { |
| counter = 0; |
| } |
| exchange.getOut().setHeader("copy-counter", counter + 1); |
| } |
| } |
| |
| protected MockEndpoint resultEndpoint; |
| |
| public void testSendMessageThroughAPipeline() throws Exception { |
| resultEndpoint.expectedBodiesReceived(4); |
| |
| Exchange results = template.request("direct:a", new Processor() { |
| public void process(Exchange exchange) { |
| // now lets fire in a message |
| Message in = exchange.getIn(); |
| in.setBody(1); |
| in.setHeader("foo", "bar"); |
| } |
| }); |
| |
| resultEndpoint.assertIsSatisfied(); |
| |
| assertEquals("Result body", 4, results.getOut().getBody()); |
| } |
| |
| |
| public void testResultsReturned() throws Exception { |
| Exchange exchange = template.request("direct:b", new Processor() { |
| public void process(Exchange exchange) { |
| exchange.getIn().setBody("Hello World"); |
| } |
| }); |
| |
| assertEquals("Hello World", exchange.getOut().getBody()); |
| assertEquals(3, exchange.getOut().getHeader("copy-counter")); |
| } |
| |
| /** |
| * Disabled for now until we figure out fault processing in the pipeline. |
| * |
| * @throws Exception |
| */ |
| public void testFaultStopsPipeline() throws Exception { |
| Exchange exchange = template.request("direct:c", new Processor() { |
| public void process(Exchange exchange) { |
| exchange.getIn().setBody("Fault Message"); |
| } |
| }); |
| |
| // Check the fault.. |
| assertTrue(exchange.getOut() != null && exchange.getOut().isFault()); |
| assertEquals("Fault Message", exchange.getOut().getBody()); |
| assertEquals(2, exchange.getOut().getHeader("copy-counter")); |
| } |
| |
| public void testOnlyProperties() { |
| Exchange exchange = template.request("direct:b", new Processor() { |
| public void process(Exchange exchange) { |
| exchange.getIn().setHeader("header", "headerValue"); |
| } |
| }); |
| |
| assertEquals("headerValue", exchange.getOut().getHeader("header")); |
| assertEquals(3, exchange.getOut().getHeader("copy-counter")); |
| } |
| |
| public void testCopyInOutExchange() { |
| Exchange exchange = template.request("direct:start", new Processor() { |
| public void process(Exchange exchange) { |
| exchange.setPattern(ExchangePattern.InOut); |
| exchange.getIn().setBody("test"); |
| } |
| }); |
| assertEquals("There should have no message header", 0, exchange.getOut().getHeaders().size()); |
| assertEquals("There should have no attachments", 0, exchange.getOut().getAttachments().size()); |
| assertEquals("Get a wrong message body", "test", exchange.getOut().getBody()); |
| assertNull(exchange.getOut().getHeader("test")); |
| assertNull(exchange.getOut().getAttachment("test1.xml")); |
| |
| } |
| |
| @Override |
| protected void setUp() throws Exception { |
| super.setUp(); |
| resultEndpoint = getMockEndpoint("mock:result"); |
| } |
| |
| protected RouteBuilder createRouteBuilder() { |
| final Processor processor = new Processor() { |
| public void process(Exchange exchange) { |
| Integer number = exchange.getIn().getBody(Integer.class); |
| if (number == null) { |
| number = 0; |
| } |
| number = number + 1; |
| exchange.getOut().setBody(number); |
| } |
| }; |
| |
| return new RouteBuilder() { |
| public void configure() { |
| // START SNIPPET: example |
| from("direct:a").pipeline("direct:x", "direct:y", "direct:z", "mock:result"); |
| // END SNIPPET: example |
| |
| from("direct:x").process(processor); |
| from("direct:y").process(processor); |
| from("direct:z").process(processor); |
| |
| // Create a route that uses the InToOut processor 3 times. the copy-counter header should be == 3 |
| from("direct:b").process(new InToOut()).process(new InToOut()).process(new InToOut()); |
| // Create a route that uses the InToFault processor.. the last InToOut will not be called since the Fault occurs before. |
| from("direct:c").process(new InToOut()).process(new InToFault()).process(new InToOut()); |
| |
| from("direct:start") |
| .process(new Processor() { |
| public void process(Exchange exchange) throws Exception { |
| exchange.getOut().copyFrom(exchange.getIn()); |
| //Added the header and attachment |
| exchange.getOut().setHeader("test", "testValue"); |
| exchange.getOut().addAttachment("test1.xml", new DataHandler(new FileDataSource("pom.xml"))); |
| } |
| }) |
| .process(new Processor() { |
| public void process(Exchange exchange) throws Exception { |
| exchange.getOut().copyFrom(exchange.getIn()); |
| assertNotNull("The test attachment should not be null", exchange.getOut().getAttachment("test1.xml")); |
| assertNotNull("The test header should not be null", exchange.getOut().getHeader("test")); |
| exchange.getOut().removeAttachment("test1.xml"); |
| exchange.getOut().removeHeader("test"); |
| } |
| }); |
| } |
| }; |
| } |
| |
| } |