/**
* Copyright 2010 JBoss Inc
*
* Licensed 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.drools.process;
import org.drools.KnowledgeBase;
import org.drools.KnowledgeBaseFactory;
import org.drools.common.AbstractRuleBase;
import org.drools.impl.InternalKnowledgeBase;
import org.drools.process.core.Work;
import org.drools.process.core.impl.WorkImpl;
import org.drools.process.instance.impl.Action;
import org.drools.ruleflow.core.RuleFlowProcess;
import org.drools.runtime.StatefulKnowledgeSession;
import org.drools.runtime.process.WorkItem;
import org.drools.runtime.process.WorkItemHandler;
import org.drools.runtime.process.WorkItemManager;
import org.drools.spi.ProcessContext;
import org.drools.workflow.core.DroolsAction;
import org.drools.workflow.core.Node;
import org.drools.workflow.core.impl.ConnectionImpl;
import org.drools.workflow.core.impl.DroolsConsequenceAction;
import org.drools.workflow.core.node.ActionNode;
import org.drools.workflow.core.node.EndNode;
import org.drools.workflow.core.node.StartNode;
import org.drools.workflow.core.node.SubProcessNode;
import org.drools.workflow.core.node.WorkItemNode;
import org.junit.Before;
import org.junit.Test;
import static org.junit.Assert.*;
public class SubProcessTest {
private boolean executed = false;
private WorkItem workItem;
@Before
public void setUp() {
executed = false;
workItem = null;
}
@Test
public void testSynchronousSubProcess() {
RuleFlowProcess process = new RuleFlowProcess();
process.setId("org.drools.process.process");
process.setName("Process");
StartNode startNode = new StartNode();
startNode.setName("Start");
startNode.setId(1);
process.addNode(startNode);
EndNode endNode = new EndNode();
endNode.setName("EndNode");
endNode.setId(2);
process.addNode(endNode);
SubProcessNode subProcessNode = new SubProcessNode();
subProcessNode.setName("SubProcessNode");
subProcessNode.setId(3);
subProcessNode.setProcessId("org.drools.process.subprocess");
process.addNode(subProcessNode);
new ConnectionImpl(
startNode, Node.CONNECTION_DEFAULT_TYPE,
subProcessNode, Node.CONNECTION_DEFAULT_TYPE
);
new ConnectionImpl(
subProcessNode, Node.CONNECTION_DEFAULT_TYPE,
endNode, Node.CONNECTION_DEFAULT_TYPE
);
KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
((AbstractRuleBase) ((InternalKnowledgeBase) kbase).getRuleBase()).addProcess(process);
process = new RuleFlowProcess();
process.setId("org.drools.process.subprocess");
process.setName("SubProcess");
startNode = new StartNode();
startNode.setName("Start");
startNode.setId(1);
process.addNode(startNode);
endNode = new EndNode();
endNode.setName("EndNode");
endNode.setId(2);
process.addNode(endNode);
ActionNode actionNode = new ActionNode();
actionNode.setName("Action");
DroolsAction action = new DroolsConsequenceAction("java", null);
action.setMetaData("Action", new Action() {
public void execute(ProcessContext context) throws Exception {
System.out.println("Executed action");
executed = true;
}
});
actionNode.setAction(action);
process.addNode(actionNode);
new ConnectionImpl(
startNode, Node.CONNECTION_DEFAULT_TYPE,
actionNode, Node.CONNECTION_DEFAULT_TYPE
);
new ConnectionImpl(
actionNode, Node.CONNECTION_DEFAULT_TYPE,
endNode, Node.CONNECTION_DEFAULT_TYPE
);
((AbstractRuleBase) ((InternalKnowledgeBase) kbase).getRuleBase()).addProcess(process);
StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
ksession.startProcess("org.drools.process.process");
assertTrue(executed);
assertEquals(0, ksession.getProcessInstances().size());
}
@Test
public void testAsynchronousSubProcess() {
RuleFlowProcess process = new RuleFlowProcess();
process.setId("org.drools.process.process");
process.setName("Process");
StartNode startNode = new StartNode();
startNode.setName("Start");
startNode.setId(1);
process.addNode(startNode);
EndNode endNode = new EndNode();
endNode.setName("EndNode");
endNode.setId(2);
process.addNode(endNode);
SubProcessNode subProcessNode = new SubProcessNode();
subProcessNode.setName("SubProcessNode");
subProcessNode.setId(3);
subProcessNode.setProcessId("org.drools.process.subprocess");
process.addNode(subProcessNode);
new ConnectionImpl(
startNode, Node.CONNECTION_DEFAULT_TYPE,
subProcessNode, Node.CONNECTION_DEFAULT_TYPE
);
new ConnectionImpl(
subProcessNode, Node.CONNECTION_DEFAULT_TYPE,
endNode, Node.CONNECTION_DEFAULT_TYPE
);
KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
((AbstractRuleBase) ((InternalKnowledgeBase) kbase).getRuleBase()).addProcess(process);
process = new RuleFlowProcess();
process.setId("org.drools.process.subprocess");
process.setName("SubProcess");
startNode = new StartNode();
startNode.setName("Start");
startNode.setId(1);
process.addNode(startNode);
endNode = new EndNode();
endNode.setName("EndNode");
endNode.setId(2);
process.addNode(endNode);
WorkItemNode workItemNode = new WorkItemNode();
workItemNode.setName("WorkItem");
Work work = new WorkImpl();
work.setName("MyWork");
workItemNode.setWork(work);
process.addNode(workItemNode);
new ConnectionImpl(
startNode, Node.CONNECTION_DEFAULT_TYPE,
workItemNode, Node.CONNECTION_DEFAULT_TYPE
);
new ConnectionImpl(
workItemNode, Node.CONNECTION_DEFAULT_TYPE,
endNode, Node.CONNECTION_DEFAULT_TYPE
);
((AbstractRuleBase) ((InternalKnowledgeBase) kbase).getRuleBase()).addProcess(process);
StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
ksession.getWorkItemManager().registerWorkItemHandler("MyWork", new WorkItemHandler() {
public void executeWorkItem(WorkItem workItem, WorkItemManager manager) {
System.out.println("Executing work item");
SubProcessTest.this.workItem = workItem;
}
public void abortWorkItem(WorkItem workItem, WorkItemManager manager) {
}
});
ksession.startProcess("org.drools.process.process");
assertNotNull(workItem);
assertEquals(2, ksession.getProcessInstances().size());
ksession.getWorkItemManager().completeWorkItem(workItem.getId(), null);
assertEquals(0, ksession.getProcessInstances().size());
}
@Test
public void testNonExistentSubProcess() {
String nonExistentSubProcessName = "nonexistent.process";
RuleFlowProcess process = new RuleFlowProcess();
process.setId("org.drools.process.process");
process.setName("Process");
StartNode startNode = new StartNode();
startNode.setName("Start");
startNode.setId(1);
SubProcessNode subProcessNode = new SubProcessNode();
subProcessNode.setName("SubProcessNode");
subProcessNode.setId(2);
subProcessNode.setProcessId(nonExistentSubProcessName);
EndNode endNode = new EndNode();
endNode.setName("End");
endNode.setId(3);
connect(startNode, subProcessNode);
connect(subProcessNode, endNode);
process.addNode( startNode );
process.addNode( subProcessNode );
process.addNode( endNode );
KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
((AbstractRuleBase) ((InternalKnowledgeBase) kbase).getRuleBase()).addProcess(process);
StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
try{
ksession.startProcess("org.drools.process.process");
fail("should throw exception");
} catch (RuntimeException re){
assertTrue(re.getMessage().contains( nonExistentSubProcessName ));
}
}
private void connect(Node sourceNode,
Node targetNode) {
new ConnectionImpl (sourceNode, Node.CONNECTION_DEFAULT_TYPE,
targetNode, Node.CONNECTION_DEFAULT_TYPE);
}
}