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* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jbpm.graph.exe;
import java.util.ArrayList;
import java.util.List;
import org.jbpm.AbstractJbpmTestCase;
import org.jbpm.graph.def.ActionHandler;
import org.jbpm.graph.def.DelegationException;
import org.jbpm.graph.def.ProcessDefinition;
public class ExceptionHandlingTest extends AbstractJbpmTestCase
{
static List executedActions = null;
protected void setUp() throws Exception
{
super.setUp();
executedActions = new ArrayList();
}
public static class BatterException extends Exception
{
private static final long serialVersionUID = 1L;
}
public static class Batter implements ActionHandler
{
private static final long serialVersionUID = 1L;
public void execute(ExecutionContext executionContext) throws Exception
{
throw new BatterException();
}
}
public static class Pitcher implements ActionHandler
{
private static final long serialVersionUID = 1L;
Throwable exception = null;
public void execute(ExecutionContext executionContext) throws DelegationException
{
this.exception = executionContext.getException();
executedActions.add(this);
}
}
public void testUncaughtException()
{
ProcessDefinition processDefinition = ProcessDefinition.parseXmlString("<process-definition>" + " <start-state>" + " <transition to='play ball' />"
+ " </start-state>" + " <state name='play ball'>" + " <event type='node-enter'>"
+ " <action class='org.jbpm.graph.exe.ExceptionHandlingTest$Batter' />" + " </event>" + " </state>" + "</process-definition>");
try
{
new ProcessInstance(processDefinition).signal();
fail("expected exception");
}
catch (DelegationException e)
{
assertSame(BatterException.class, e.getCause().getClass());
}
}
public static class RuntimeBatter implements ActionHandler
{
private static final long serialVersionUID = 1L;
public void execute(ExecutionContext executionContext) throws Exception
{
throw new RuntimeException("here i come");
}
}
public void testUncaughtRuntimeException()
{
ProcessDefinition processDefinition = ProcessDefinition.parseXmlString("<process-definition>" + " <start-state>" + " <transition to='play ball' />"
+ " </start-state>" + " <state name='play ball'>" + " <event type='node-enter'>"
+ " <action class='org.jbpm.graph.exe.ExceptionHandlingTest$RuntimeBatter' />" + " </event>" + " </state>" + "</process-definition>");
try
{
new ProcessInstance(processDefinition).signal();
fail("expected exception");
}
catch (DelegationException e)
{
assertSame(RuntimeException.class, e.getCause().getClass());
}
}
public static class ErrorBatter implements ActionHandler
{
private static final long serialVersionUID = 1L;
public void execute(ExecutionContext executionContext) throws Exception
{
throw new Error("jvm trouble coming your way");
}
}
public void testUncaughtError()
{
ProcessDefinition processDefinition = ProcessDefinition.parseXmlString("<process-definition>" + " <start-state>" + " <transition to='play ball' />"
+ " </start-state>" + " <state name='play ball'>" + " <event type='node-enter'>"
+ " <action class='org.jbpm.graph.exe.ExceptionHandlingTest$ErrorBatter' />" + " </event>" + " </state>" + "</process-definition>");
try
{
new ProcessInstance(processDefinition).signal();
fail("expected exception");
}
catch (DelegationException e)
{
fail("i don't want a delegation exception. jBPM should not handle Error's since that might lead to JVM halts");
}
catch (Error e)
{
// OK
}
}
public void testSimpleCatchAll()
{
ProcessDefinition processDefinition = ProcessDefinition.parseXmlString("<process-definition>" + " <start-state>" + " <transition to='play ball' />"
+ " </start-state>" + " <state name='play ball'>" + " <event type='node-enter'>"
+ " <action class='org.jbpm.graph.exe.ExceptionHandlingTest$Batter' />" + " </event>" + " <exception-handler>"
+ " <action class='org.jbpm.graph.exe.ExceptionHandlingTest$Pitcher'/>" + " </exception-handler>" + " </state>" + "</process-definition>");
new ProcessInstance(processDefinition).signal();
assertEquals(1, executedActions.size());
Pitcher executedPitcher = (Pitcher)executedActions.get(0);
assertSame(BatterException.class, executedPitcher.exception.getClass());
}
public void testCatchOnlyTheSpecifiedException()
{
ProcessDefinition processDefinition = ProcessDefinition.parseXmlString("<process-definition>" + " <start-state>" + " <transition to='play ball' />"
+ " </start-state>" + " <state name='play ball'>" + " <event type='node-enter'>"
+ " <action class='org.jbpm.graph.exe.ExceptionHandlingTest$Batter' />" + " </event>"
+ " <exception-handler exception-class='org.jbpm.graph.exe.ExceptionHandlingTest$BatterException'>"
+ " <action class='org.jbpm.graph.exe.ExceptionHandlingTest$Pitcher'/>" + " </exception-handler>" + " </state>" + "</process-definition>");
new ProcessInstance(processDefinition).signal();
}
public void testDontCatchTheNonSpecifiedException()
{
ProcessDefinition processDefinition = ProcessDefinition.parseXmlString("<process-definition>" + " <start-state>" + " <transition to='play ball' />"
+ " </start-state>" + " <state name='play ball'>" + " <event type='node-enter'>"
+ " <action class='org.jbpm.graph.exe.ExceptionHandlingTest$Batter' />" + " </event>"
+ " <exception-handler exception-class='java.lang.RuntimeException'>" + " <action class='org.jbpm.graph.exe.ExceptionHandlingTest$Pitcher'/>"
+ " </exception-handler>" + " </state>" + "</process-definition>");
try
{
new ProcessInstance(processDefinition).signal();
}
catch (DelegationException e)
{
assertSame(BatterException.class, e.getCause().getClass());
}
}
public static class SecondExceptionHandler implements ActionHandler
{
private static final long serialVersionUID = 1L;
public void execute(ExecutionContext executionContext) throws DelegationException
{
executedActions.add(this);
}
}
public void testCatchWithTheSecondSpecifiedExceptionHandler()
{
ProcessDefinition processDefinition = ProcessDefinition.parseXmlString("<process-definition>" + " <start-state>" + " <transition to='play ball' />"
+ " </start-state>" + " <state name='play ball'>" + " <event type='node-enter'>"
+ " <action class='org.jbpm.graph.exe.ExceptionHandlingTest$Batter' />"
+ " </event>"
+
// the first exception-handler will not catch the BatterException
" <exception-handler exception-class='java.lang.RuntimeException'>" + " <action class='org.jbpm.graph.exe.ExceptionHandlingTest$Pitcher'/>"
+ " </exception-handler>"
+
// but the second exception-handler will catch all
" <exception-handler>" + " <action class='org.jbpm.graph.exe.ExceptionHandlingTest$SecondExceptionHandler'/>" + " </exception-handler>"
+ " </state>" + "</process-definition>");
new ProcessInstance(processDefinition).signal();
assertEquals(1, executedActions.size());
assertSame(SecondExceptionHandler.class, executedActions.get(0).getClass());
}
public void testTwoActionsInOneExceptionHandler()
{
ProcessDefinition processDefinition = ProcessDefinition.parseXmlString("<process-definition>" + " <start-state>" + " <transition to='play ball' />"
+ " </start-state>" + " <state name='play ball'>" + " <event type='node-enter'>"
+ " <action class='org.jbpm.graph.exe.ExceptionHandlingTest$Batter' />" + " </event>" + " <exception-handler>"
+ " <action class='org.jbpm.graph.exe.ExceptionHandlingTest$Pitcher'/>"
+ " <action class='org.jbpm.graph.exe.ExceptionHandlingTest$SecondExceptionHandler'/>" + " </exception-handler>" + " </state>"
+ "</process-definition>");
new ProcessInstance(processDefinition).signal();
assertEquals(2, executedActions.size());
assertSame(Pitcher.class, executedActions.get(0).getClass());
assertSame(SecondExceptionHandler.class, executedActions.get(1).getClass());
}
public void testProcessDefinitionExceptionHandling()
{
ProcessDefinition processDefinition = ProcessDefinition.parseXmlString("<process-definition>" + " <start-state>" + " <transition to='play ball' />"
+ " </start-state>" + " <state name='play ball'>" + " <event type='node-enter'>"
+ " <action class='org.jbpm.graph.exe.ExceptionHandlingTest$Batter' />" + " </event>" + " </state>" + " <exception-handler>"
+ " <action class='org.jbpm.graph.exe.ExceptionHandlingTest$Pitcher'/>" + " </exception-handler>" + "</process-definition>");
new ProcessInstance(processDefinition).signal();
assertEquals(1, executedActions.size());
}
public void testSuperStateExceptionHandling()
{
ProcessDefinition processDefinition = ProcessDefinition.parseXmlString("<process-definition>" + " <start-state>" + " <transition to='superstate/play ball' />"
+ " </start-state>" + " <super-state name='superstate'>" + " <state name='play ball'>" + " <event type='node-enter'>"
+ " <action class='org.jbpm.graph.exe.ExceptionHandlingTest$Batter' />" + " </event>" + " </state>" + " <exception-handler>"
+ " <action class='org.jbpm.graph.exe.ExceptionHandlingTest$Pitcher'/>" + " </exception-handler>" + " </super-state>" + "</process-definition>");
new ProcessInstance(processDefinition).signal();
assertEquals(1, executedActions.size());
}
}