Beanflow: Multiple execution of beanflow steps
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Key: SM-504
URL: https://issues.apache.org/activemq/browse/SM-504
Project: ServiceMix
Issue Type: Bug
Affects Versions: incubation
Environment: Windows2K, running ServiceMix under JBoss4.0.3SP1
Reporter: Andreas Held
Consider the following simple Beanflow example:
public class TestWorkflow extends Workflow<String> {
private static Logger log =
Logger.getLogger(TestWorkflow.class.getName());
public static int count = 0;
public TestWorkflow() {
super("startStep");
}
public String startStep() {
count += 1;
log.info("Workflow: Validation");
// next step
return "persistenceStep";
}
public String persistenceStep() {
count += 1;
log.info("Workflow: Persistence");
// next step
return "transferStep";
}
public String transferStep() {
count += 1;
log.info("Workflow: Transfer");
// next step
return "stop";
}
}
If I write a JUnit test case with assertEquals(workflow.count, 3); then
this will fail, as count has a value of 5. Looking at the log shows the
following output:
08:19:26,335 DEBUG [org.apache.servicemix.beanflow.Workflow.run()] About
to execute step: startStep
08:19:26,351 INFO [ch.bbp.igt.comm.ServiceMix.TestWorkflow.startStep()]
FileActWorkflow: Validation
08:19:26,351 DEBUG [org.apache.servicemix.beanflow.Workflow.run()] About
to execute step: persistenceStep
08:19:26,351 INFO
[ch.bbp.igt.comm.ServiceMix.TestWorkflow.persistenceStep()]
FileActWorkflow: Persistence
08:19:26,351 DEBUG [org.apache.servicemix.beanflow.Workflow.run()] About
to execute step: persistenceStep
08:19:26,351 INFO
[ch.bbp.igt.comm.ServiceMix.TestWorkflow.persistenceStep()]
FileActWorkflow: Persistence
08:19:26,351 DEBUG [org.apache.servicemix.beanflow.Workflow.run()] About
to execute step: transferStep
08:19:26,351 INFO
[ch.bbp.igt.comm.ServiceMix.TestWorkflow.transferStep()]
FileActWorkflow: Transfer
08:19:26,351 DEBUG [org.apache.servicemix.beanflow.Workflow.run()] About
to execute step: transferStep
08:19:26,351 INFO
[ch.bbp.igt.comm.ServiceMix.TestWorkflow.transferStep()]
FileActWorkflow: Transfer
08:19:26,351 DEBUG [org.apache.servicemix.beanflow.Workflow.run()] About
to execute step: stop
08:19:26,367 DEBUG [org.apache.servicemix.beanflow.Workflow.run()] About
to execute step: stop
This means, all steps but the start step are executed twice! This
corresponds to count being 5 in the end!
JUnit Testcase :
public class WorkflowTest extends TestCase {
public WorkflowTest(String s) {
super(s);
}
protected void setUp() {
}
protected void tearDown() {
}
public void testTest() throws Exception {
TestWorkflow workflow = new TestWorkflow();
workflow.start();
Thread.sleep(2000);
assertEquals(3, workflow.count);
}
public static Test suite() {
TestSuite suite = new TestSuite();
suite.addTest(new WorkflowTest("testTest"));
return suite;
}
}
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