package org.drools.integrationtests;
import java.io.Reader;
import java.io.StringReader;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import junit.framework.TestCase;
import org.drools.Person;
import org.drools.RuleBase;
import org.drools.RuleBaseFactory;
import org.drools.StatefulSession;
import org.drools.WorkingMemory;
import org.drools.compiler.PackageBuilder;
import org.drools.process.instance.ProcessInstance;
import org.drools.rule.Package;
import org.drools.ruleflow.instance.RuleFlowProcessInstance;
import org.drools.runtime.process.NodeInstance;
import org.drools.workflow.instance.node.StateNodeInstance;
public class ProcessStateTest extends TestCase {
public void testManualSignalState() {
PackageBuilder builder = new PackageBuilder();
Reader source = new StringReader(
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +
"<process xmlns=\"http://drools.org/drools-5.0/process\"\n" +
" xmlns:xs=\"http://www.w3.org/2001/XMLSchema-instance\"\n" +
" xs:schemaLocation=\"http://drools.org/drools-5.0/process drools-processes-5.0.xsd\"\n" +
" type=\"RuleFlow\" name=\"flow\" id=\"org.drools.state\" package-name=\"org.drools\" version=\"1\" >\n" +
"\n" +
" <header>\n" +
" </header>\n" +
"\n" +
" <nodes>\n" +
" <start id=\"1\" name=\"Start\" />\n" +
" <state id=\"2\" name=\"StateA\" >\n" +
" <constraints>\n" +
" <constraint toNodeId=\"3\" name=\"toB\" />\n" +
" <constraint toNodeId=\"4\" name=\"toC\" />\n" +
" </constraints>\n" +
" </state>\n" +
" <state id=\"3\" name=\"StateB\" />\n" +
" <state id=\"4\" name=\"StateC\" />\n" +
" <end id=\"5\" name=\"End\" />\n" +
" </nodes>\n" +
"\n" +
" <connections>\n" +
" <connection from=\"1\" to=\"2\" />\n" +
" <connection from=\"2\" to=\"3\" />\n" +
" <connection from=\"2\" to=\"4\" />\n" +
" <connection from=\"3\" to=\"2\" />\n" +
" <connection from=\"4\" to=\"5\" />\n" +
" </connections>\n" +
"\n" +
"</process>");
builder.addRuleFlow(source);
Package pkg = builder.getPackage();
RuleBase ruleBase = RuleBaseFactory.newRuleBase();
ruleBase.addPackage( pkg );
WorkingMemory workingMemory = ruleBase.newStatefulSession();
// start process
RuleFlowProcessInstance processInstance = (RuleFlowProcessInstance)
workingMemory.startProcess("org.drools.state");
// should be in state A
assertEquals(ProcessInstance.STATE_ACTIVE, processInstance.getState());
Collection<NodeInstance> nodeInstances = processInstance.getNodeInstances();
assertEquals(1, nodeInstances.size());
StateNodeInstance stateInstance = (StateNodeInstance) nodeInstances.iterator().next();
assertEquals("StateA", stateInstance.getNodeName());
// signal "toB" so we move to state B
processInstance.signalEvent("signal", "toB");
nodeInstances = processInstance.getNodeInstances();
assertEquals(1, nodeInstances.size());
stateInstance = (StateNodeInstance) nodeInstances.iterator().next();
assertEquals("StateB", stateInstance.getNodeName());
// if no constraint specified for a connection,
// we default to the name of the target node
// signal "StateA", so we move back to state A
processInstance.signalEvent("signal", "StateA");
nodeInstances = processInstance.getNodeInstances();
assertEquals(1, nodeInstances.size());
stateInstance = (StateNodeInstance) nodeInstances.iterator().next();
assertEquals("StateA", stateInstance.getNodeName());
// signal "toC" so we move to state C
processInstance.signalEvent("signal", "toC");
nodeInstances = processInstance.getNodeInstances();
assertEquals(1, nodeInstances.size());
stateInstance = (StateNodeInstance) nodeInstances.iterator().next();
assertEquals("StateC", stateInstance.getNodeName());
// signal something completely wrong, this should simply be ignored
processInstance.signalEvent("signal", "Invalid");
nodeInstances = processInstance.getNodeInstances();
assertEquals(1, nodeInstances.size());
stateInstance = (StateNodeInstance) nodeInstances.iterator().next();
assertEquals("StateC", stateInstance.getNodeName());
// signal "End", so we move to the end
processInstance.signalEvent("signal", "End");
nodeInstances = processInstance.getNodeInstances();
assertEquals(0, nodeInstances.size());
assertEquals(ProcessInstance.STATE_COMPLETED, processInstance.getState());
}
public void testImmediateStateConstraint1() {
PackageBuilder builder = new PackageBuilder();
Reader source = new StringReader(
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +
"<process xmlns=\"http://drools.org/drools-5.0/process\"\n" +
" xmlns:xs=\"http://www.w3.org/2001/XMLSchema-instance\"\n" +
" xs:schemaLocation=\"http://drools.org/drools-5.0/process drools-processes-5.0.xsd\"\n" +
" type=\"RuleFlow\" name=\"flow\" id=\"org.drools.state\" package-name=\"org.drools\" version=\"1\" >\n" +
"\n" +
" <header>\n" +
" <globals>\n" +
" <global identifier=\"list\" type=\"java.util.List\" />\n" +
" </globals>\n" +
" </header>\n" +
"\n" +
" <nodes>\n" +
" <start id=\"1\" name=\"Start\" />\n" +
" <state id=\"2\" >\n" +
" <constraints>\n" +
" <constraint toNodeId=\"3\" name=\"one\" >\n" +
" eval(true)" +
" </constraint>"+
" <constraint toNodeId=\"4\" name=\"two\" >\n" +
" eval(false)" +
" </constraint>"+
" </constraints>\n" +
" </state>\n" +
" <actionNode id=\"3\" name=\"ActionNode1\" >\n" +
" <action type=\"expression\" dialect=\"java\" >list.add(\"1\");</action>\n" +
" </actionNode>\n" +
" <end id=\"4\" name=\"End\" />\n" +
" <actionNode id=\"5\" name=\"ActionNode2\" >\n" +
" <action type=\"expression\" dialect=\"java\" >list.add(\"2\");</action>\n" +
" </actionNode>\n" +
" <end id=\"6\" name=\"End\" />\n" +
" </nodes>\n" +
"\n" +
" <connections>\n" +
" <connection from=\"1\" to=\"2\" />\n" +
" <connection from=\"2\" to=\"3\" />\n" +
" <connection from=\"3\" to=\"4\" />\n" +
" <connection from=\"2\" to=\"5\" />\n" +
" <connection from=\"5\" to=\"6\" />\n" +
" </connections>\n" +
"\n" +
"</process>");
builder.addRuleFlow(source);
Package pkg = builder.getPackage();
RuleBase ruleBase = RuleBaseFactory.newRuleBase();
ruleBase.addPackage( pkg );
WorkingMemory workingMemory = ruleBase.newStatefulSession();
List<String> list = new ArrayList<String>();
workingMemory.setGlobal("list", list);
ProcessInstance processInstance = workingMemory.startProcess("org.drools.state");
assertEquals(ProcessInstance.STATE_COMPLETED, processInstance.getState());
assertEquals(1, list.size());
assertEquals("1", list.get(0));
}
public void testImmediateStateConstraintPriorities1() {
PackageBuilder builder = new PackageBuilder();
Reader source = new StringReader(
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +
"<process xmlns=\"http://drools.org/drools-5.0/process\"\n" +
" xmlns:xs=\"http://www.w3.org/2001/XMLSchema-instance\"\n" +
" xs:schemaLocation=\"http://drools.org/drools-5.0/process drools-processes-5.0.xsd\"\n" +
" type=\"RuleFlow\" name=\"flow\" id=\"org.drools.state\" package-name=\"org.drools\" version=\"1\" >\n" +
"\n" +
" <header>\n" +
" <globals>\n" +
" <global identifier=\"list\" type=\"java.util.List\" />\n" +
" </globals>\n" +
" </header>\n" +
"\n" +
" <nodes>\n" +
" <start id=\"1\" name=\"Start\" />\n" +
" <state id=\"2\" >\n" +
" <constraints>\n" +
" <constraint toNodeId=\"3\" name=\"one\" priority=\"1\" >\n" +
" eval(true)" +
" </constraint>"+
" <constraint toNodeId=\"5\" name=\"two\" priority=\"2\" >\n" +
" eval(true)" +
" </constraint>"+
" </constraints>\n" +
" </state>\n" +
" <actionNode id=\"3\" name=\"ActionNode1\" >\n" +
" <action type=\"expression\" dialect=\"java\" >list.add(\"1\");</action>\n" +
" </actionNode>\n" +
" <end id=\"4\" name=\"End\" />\n" +
" <actionNode id=\"5\" name=\"ActionNode2\" >\n" +
" <action type=\"expression\" dialect=\"java\" >list.add(\"2\");</action>\n" +
" </actionNode>\n" +
" <end id=\"6\" name=\"End\" />\n" +
" </nodes>\n" +
"\n" +
" <connections>\n" +
" <connection from=\"1\" to=\"2\" />\n" +
" <connection from=\"2\" to=\"3\" />\n" +
" <connection from=\"3\" to=\"4\" />\n" +
" <connection from=\"2\" to=\"5\" />\n" +
" <connection from=\"5\" to=\"6\" />\n" +
" </connections>\n" +
"\n" +
"</process>");
builder.addRuleFlow(source);
Package pkg = builder.getPackage();
RuleBase ruleBase = RuleBaseFactory.newRuleBase();
ruleBase.addPackage( pkg );
WorkingMemory workingMemory = ruleBase.newStatefulSession();
List<String> list = new ArrayList<String>();
workingMemory.setGlobal("list", list);
ProcessInstance processInstance = workingMemory.startProcess("org.drools.state");
assertEquals(ProcessInstance.STATE_COMPLETED, processInstance.getState());
assertEquals(1, list.size());
assertEquals("1", list.get(0));
}
public void testImmediateStateConstraintPriorities2() {
PackageBuilder builder = new PackageBuilder();
Reader source = new StringReader(
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +
"<process xmlns=\"http://drools.org/drools-5.0/process\"\n" +
" xmlns:xs=\"http://www.w3.org/2001/XMLSchema-instance\"\n" +
" xs:schemaLocation=\"http://drools.org/drools-5.0/process drools-processes-5.0.xsd\"\n" +
" type=\"RuleFlow\" name=\"flow\" id=\"org.drools.state\" package-name=\"org.drools\" version=\"1\" >\n" +
"\n" +
" <header>\n" +
" <globals>\n" +
" <global identifier=\"list\" type=\"java.util.List\" />\n" +
" </globals>\n" +
" </header>\n" +
"\n" +
" <nodes>\n" +
" <start id=\"1\" name=\"Start\" />\n" +
" <state id=\"2\" >\n" +
" <constraints>\n" +
" <constraint toNodeId=\"3\" name=\"one\" priority=\"2\" >\n" +
" eval(true)" +
" </constraint>"+
" <constraint toNodeId=\"5\" name=\"two\" priority=\"1\" >\n" +
" eval(true)" +
" </constraint>"+
" </constraints>\n" +
" </state>\n" +
" <actionNode id=\"3\" name=\"ActionNode1\" >\n" +
" <action type=\"expression\" dialect=\"java\" >list.add(\"1\");</action>\n" +
" </actionNode>\n" +
" <end id=\"4\" name=\"End\" />\n" +
" <actionNode id=\"5\" name=\"ActionNode2\" >\n" +
" <action type=\"expression\" dialect=\"java\" >list.add(\"2\");</action>\n" +
" </actionNode>\n" +
" <end id=\"6\" name=\"End\" />\n" +
" </nodes>\n" +
"\n" +
" <connections>\n" +
" <connection from=\"1\" to=\"2\" />\n" +
" <connection from=\"2\" to=\"3\" />\n" +
" <connection from=\"3\" to=\"4\" />\n" +
" <connection from=\"2\" to=\"5\" />\n" +
" <connection from=\"5\" to=\"6\" />\n" +
" </connections>\n" +
"\n" +
"</process>");
builder.addRuleFlow(source);
Package pkg = builder.getPackage();
RuleBase ruleBase = RuleBaseFactory.newRuleBase();
ruleBase.addPackage( pkg );
WorkingMemory workingMemory = ruleBase.newStatefulSession();
List<String> list = new ArrayList<String>();
workingMemory.setGlobal("list", list);
ProcessInstance processInstance = workingMemory.startProcess("org.drools.state");
assertEquals(ProcessInstance.STATE_COMPLETED, processInstance.getState());
assertEquals(1, list.size());
assertEquals("2", list.get(0));
}
public void testDelayedStateConstraint() {
PackageBuilder builder = new PackageBuilder();
Reader source = new StringReader(
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +
"<process xmlns=\"http://drools.org/drools-5.0/process\"\n" +
" xmlns:xs=\"http://www.w3.org/2001/XMLSchema-instance\"\n" +
" xs:schemaLocation=\"http://drools.org/drools-5.0/process drools-processes-5.0.xsd\"\n" +
" type=\"RuleFlow\" name=\"flow\" id=\"org.drools.state\" package-name=\"org.drools\" version=\"1\" >\n" +
"\n" +
" <header>\n" +
" <imports>\n" +
" <import name=\"org.drools.Person\" />\n" +
" </imports>\n" +
" <globals>\n" +
" <global identifier=\"list\" type=\"java.util.List\" />\n" +
" </globals>\n" +
" </header>\n" +
"\n" +
" <nodes>\n" +
" <start id=\"1\" name=\"Start\" />\n" +
" <state id=\"2\" >\n" +
" <constraints>\n" +
" <constraint toNodeId=\"3\" name=\"one\" >\n" +
" Person( age > 21 )" +
" </constraint>"+
" <constraint toNodeId=\"4\" name=\"two\" >\n" +
" Person( age <= 21 )" +
" </constraint>"+
" </constraints>\n" +
" </state>\n" +
" <actionNode id=\"3\" name=\"ActionNode1\" >\n" +
" <action type=\"expression\" dialect=\"java\" >list.add(\"1\");</action>\n" +
" </actionNode>\n" +
" <end id=\"4\" name=\"End\" />\n" +
" <actionNode id=\"5\" name=\"ActionNode2\" >\n" +
" <action type=\"expression\" dialect=\"java\" >list.add(\"2\");</action>\n" +
" </actionNode>\n" +
" <end id=\"6\" name=\"End\" />\n" +
" </nodes>\n" +
"\n" +
" <connections>\n" +
" <connection from=\"1\" to=\"2\" />\n" +
" <connection from=\"2\" to=\"3\" />\n" +
" <connection from=\"3\" to=\"4\" />\n" +
" <connection from=\"2\" to=\"5\" />\n" +
" <connection from=\"5\" to=\"6\" />\n" +
" </connections>\n" +
"\n" +
"</process>");
builder.addRuleFlow(source);
Package pkg = builder.getPackage();
RuleBase ruleBase = RuleBaseFactory.newRuleBase();
ruleBase.addPackage( pkg );
WorkingMemory workingMemory = ruleBase.newStatefulSession();
List<String> list = new ArrayList<String>();
workingMemory.setGlobal("list", list);
ProcessInstance processInstance = workingMemory.startProcess("org.drools.state");
assertEquals(ProcessInstance.STATE_ACTIVE, processInstance.getState());
assertTrue(list.isEmpty());
Person person = new Person("John Doe", 30);
workingMemory.insert(person);
assertEquals(ProcessInstance.STATE_COMPLETED, processInstance.getState());
assertEquals(1, list.size());
assertEquals("1", list.get(0));
}
public void testDelayedStateConstraint2() {
PackageBuilder builder = new PackageBuilder();
Reader source = new StringReader(
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +
"<process xmlns=\"http://drools.org/drools-5.0/process\"\n" +
" xmlns:xs=\"http://www.w3.org/2001/XMLSchema-instance\"\n" +
" xs:schemaLocation=\"http://drools.org/drools-5.0/process drools-processes-5.0.xsd\"\n" +
" type=\"RuleFlow\" name=\"flow\" id=\"org.drools.state\" package-name=\"org.drools\" version=\"1\" >\n" +
"\n" +
" <header>\n" +
" <imports>\n" +
" <import name=\"org.drools.Person\" />\n" +
" </imports>\n" +
" <globals>\n" +
" <global identifier=\"list\" type=\"java.util.List\" />\n" +
" </globals>\n" +
" </header>\n" +
"\n" +
" <nodes>\n" +
" <start id=\"1\" name=\"Start\" />\n" +
" <state id=\"2\" >\n" +
" <constraints>\n" +
" <constraint toNodeId=\"3\" name=\"age > 21\" >\n" +
" Person( age > 21 )" +
" </constraint>"+
" <constraint toNodeId=\"5\" name=\"age <=21 \" >\n" +
" Person( age <= 21 )" +
" </constraint>"+
" </constraints>\n" +
" </state>\n" +
" <actionNode id=\"3\" name=\"ActionNode1\" >\n" +
" <action type=\"expression\" dialect=\"java\" >list.add(\"1\");</action>\n" +
" </actionNode>\n" +
" <end id=\"4\" name=\"End\" />\n" +
" <actionNode id=\"5\" name=\"ActionNode2\" >\n" +
" <action type=\"expression\" dialect=\"java\" >list.add(\"2\");</action>\n" +
" </actionNode>\n" +
" <end id=\"6\" name=\"End\" />\n" +
" </nodes>\n" +
"\n" +
" <connections>\n" +
" <connection from=\"1\" to=\"2\" />\n" +
" <connection from=\"2\" to=\"3\" />\n" +
" <connection from=\"3\" to=\"4\" />\n" +
" <connection from=\"2\" to=\"5\" />\n" +
" <connection from=\"5\" to=\"6\" />\n" +
" </connections>\n" +
"\n" +
"</process>");
builder.addRuleFlow(source);
Package pkg = builder.getPackage();
RuleBase ruleBase = RuleBaseFactory.newRuleBase();
ruleBase.addPackage( pkg );
WorkingMemory workingMemory = ruleBase.newStatefulSession();
List<String> list = new ArrayList<String>();
workingMemory.setGlobal("list", list);
ProcessInstance processInstance = workingMemory.startProcess("org.drools.state");
assertEquals(ProcessInstance.STATE_ACTIVE, processInstance.getState());
assertTrue(list.isEmpty());
Person person = new Person("John Doe", 20);
workingMemory.insert(person);
assertEquals(ProcessInstance.STATE_COMPLETED, processInstance.getState());
assertEquals(1, list.size());
assertEquals("2", list.get(0));
}
public void FIXMEtestDelayedStateConstraintPriorities1() {
PackageBuilder builder = new PackageBuilder();
Reader source = new StringReader(
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +
"<process xmlns=\"http://drools.org/drools-5.0/process\"\n" +
" xmlns:xs=\"http://www.w3.org/2001/XMLSchema-instance\"\n" +
" xs:schemaLocation=\"http://drools.org/drools-5.0/process drools-processes-5.0.xsd\"\n" +
" type=\"RuleFlow\" name=\"flow\" id=\"org.drools.state\" package-name=\"org.drools\" version=\"1\" >\n" +
"\n" +
" <header>\n" +
" <imports>\n" +
" <import name=\"org.drools.Person\" />\n" +
" </imports>\n" +
" <globals>\n" +
" <global identifier=\"list\" type=\"java.util.List\" />\n" +
" </globals>\n" +
" </header>\n" +
"\n" +
" <nodes>\n" +
" <start id=\"1\" name=\"Start\" />\n" +
" <state id=\"2\" >\n" +
" <constraints>\n" +
" <constraint toNodeId=\"3\" name=\"one\" priority=\"1\" >\n" +
" Person( )" +
" </constraint>"+
" <constraint toNodeId=\"5\" name=\"two\" priority=\"2\" >\n" +
" Person( )" +
" </constraint>"+
" </constraints>\n" +
" </state>\n" +
" <actionNode id=\"3\" name=\"ActionNode1\" >\n" +
" <action type=\"expression\" dialect=\"java\" >list.add(\"1\");</action>\n" +
" </actionNode>\n" +
" <end id=\"4\" name=\"End\" />\n" +
" <actionNode id=\"5\" name=\"ActionNode2\" >\n" +
" <action type=\"expression\" dialect=\"java\" >list.add(\"2\");</action>\n" +
" </actionNode>\n" +
" <end id=\"6\" name=\"End\" />\n" +
" </nodes>\n" +
"\n" +
" <connections>\n" +
" <connection from=\"1\" to=\"2\" />\n" +
" <connection from=\"2\" to=\"3\" />\n" +
" <connection from=\"3\" to=\"4\" />\n" +
" <connection from=\"2\" to=\"5\" />\n" +
" <connection from=\"5\" to=\"6\" />\n" +
" </connections>\n" +
"\n" +
"</process>");
builder.addRuleFlow(source);
Package pkg = builder.getPackage();
RuleBase ruleBase = RuleBaseFactory.newRuleBase();
ruleBase.addPackage( pkg );
WorkingMemory workingMemory = ruleBase.newStatefulSession();
List<String> list = new ArrayList<String>();
workingMemory.setGlobal("list", list);
ProcessInstance processInstance = workingMemory.startProcess("org.drools.state");
assertEquals(ProcessInstance.STATE_ACTIVE, processInstance.getState());
assertTrue(list.isEmpty());
Person person = new Person("John Doe", 30);
workingMemory.insert(person);
assertEquals(ProcessInstance.STATE_COMPLETED, processInstance.getState());
assertEquals(1, list.size());
assertEquals("1", list.get(0));
}
public void FIXMEtestDelayedStateConstraintPriorities2() {
PackageBuilder builder = new PackageBuilder();
Reader source = new StringReader(
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +
"<process xmlns=\"http://drools.org/drools-5.0/process\"\n" +
" xmlns:xs=\"http://www.w3.org/2001/XMLSchema-instance\"\n" +
" xs:schemaLocation=\"http://drools.org/drools-5.0/process drools-processes-5.0.xsd\"\n" +
" type=\"RuleFlow\" name=\"flow\" id=\"org.drools.state\" package-name=\"org.drools\" version=\"1\" >\n" +
"\n" +
" <header>\n" +
" <imports>\n" +
" <import name=\"org.drools.Person\" />\n" +
" </imports>\n" +
" <globals>\n" +
" <global identifier=\"list\" type=\"java.util.List\" />\n" +
" </globals>\n" +
" </header>\n" +
"\n" +
" <nodes>\n" +
" <start id=\"1\" name=\"Start\" />\n" +
" <state id=\"2\" >\n" +
" <constraints>\n" +
" <constraint toNodeId=\"3\" name=\"one\" priority=\"2\" >\n" +
" Person( )" +
" </constraint>"+
" <constraint toNodeId=\"5\" name=\"two\" priority=\"1\" >\n" +
" Person( )" +
" </constraint>"+
" </constraints>\n" +
" </state>\n" +
" <actionNode id=\"3\" name=\"ActionNode1\" >\n" +
" <action type=\"expression\" dialect=\"java\" >list.add(\"1\");</action>\n" +
" </actionNode>\n" +
" <end id=\"4\" name=\"End\" />\n" +
" <actionNode id=\"5\" name=\"ActionNode2\" >\n" +
" <action type=\"expression\" dialect=\"java\" >list.add(\"2\");</action>\n" +
" </actionNode>\n" +
" <end id=\"6\" name=\"End\" />\n" +
" </nodes>\n" +
"\n" +
" <connections>\n" +
" <connection from=\"1\" to=\"2\" />\n" +
" <connection from=\"2\" to=\"3\" />\n" +
" <connection from=\"3\" to=\"4\" />\n" +
" <connection from=\"2\" to=\"5\" />\n" +
" <connection from=\"5\" to=\"6\" />\n" +
" </connections>\n" +
"\n" +
"</process>");
builder.addRuleFlow(source);
Package pkg = builder.getPackage();
RuleBase ruleBase = RuleBaseFactory.newRuleBase();
ruleBase.addPackage( pkg );
WorkingMemory workingMemory = ruleBase.newStatefulSession();
List<String> list = new ArrayList<String>();
workingMemory.setGlobal("list", list);
ProcessInstance processInstance = workingMemory.startProcess("org.drools.state");
assertEquals(ProcessInstance.STATE_ACTIVE, processInstance.getState());
assertTrue(list.isEmpty());
Person person = new Person("John Doe", 30);
workingMemory.insert(person);
assertEquals(ProcessInstance.STATE_COMPLETED, processInstance.getState());
assertEquals(1, list.size());
assertEquals("2", list.get(0));
}
public void testActionState() {
PackageBuilder builder = new PackageBuilder();
Reader source = new StringReader(
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +
"<process xmlns=\"http://drools.org/drools-5.0/process\"\n" +
" xmlns:xs=\"http://www.w3.org/2001/XMLSchema-instance\"\n" +
" xs:schemaLocation=\"http://drools.org/drools-5.0/process drools-processes-5.0.xsd\"\n" +
" type=\"RuleFlow\" name=\"flow\" id=\"org.drools.state\" package-name=\"org.drools\" version=\"1\" >\n" +
"\n" +
" <header>\n" +
" <globals>\n" +
" <global identifier=\"list\" type=\"java.util.List\" />\n" +
" </globals>\n" +
" <variables>\n" +
" <variable name=\"s\" >\n" +
" <type name=\"org.drools.process.core.datatype.impl.type.StringDataType\" />\n" +
" <value>a</value>\n" +
" </variable>\n" +
" </variables>\n" +
" </header>\n" +
"\n" +
" <nodes>\n" +
" <start id=\"1\" name=\"Start\" />\n" +
" <state id=\"2\" name=\"State\" >\n" +
" <onEntry>" +
" <action type=\"expression\" dialect=\"mvel\" >list.add(\"Action1\" + s);</action>\n" +
" <action type=\"expression\" dialect=\"java\" >list.add(\"Action2\" + s);</action>\n" +
" </onEntry>\n" +
" <onExit>\n" +
" <action type=\"expression\" dialect=\"mvel\" >list.add(\"Action3\" + s);</action>\n" +
" <action type=\"expression\" dialect=\"java\" >list.add(\"Action4\" + s);</action>\n" +
" </onExit>\n" +
" </state>\n" +
" <end id=\"3\" name=\"End\" />\n" +
" </nodes>\n" +
"\n" +
" <connections>\n" +
" <connection from=\"1\" to=\"2\" />\n" +
" <connection from=\"2\" to=\"3\" />\n" +
" </connections>\n" +
"\n" +
"</process>");
builder.addRuleFlow(source);
Package pkg = builder.getPackage();
RuleBase ruleBase = RuleBaseFactory.newRuleBase();
ruleBase.addPackage( pkg );
WorkingMemory workingMemory = ruleBase.newStatefulSession();
List<String> list = new ArrayList<String>();
workingMemory.setGlobal("list", list);
// start process
RuleFlowProcessInstance processInstance = (RuleFlowProcessInstance)
workingMemory.startProcess("org.drools.state");
// should be in state A
assertEquals(ProcessInstance.STATE_ACTIVE, processInstance.getState());
Collection<NodeInstance> nodeInstances = processInstance.getNodeInstances();
assertEquals(1, nodeInstances.size());
StateNodeInstance stateInstance = (StateNodeInstance) nodeInstances.iterator().next();
assertEquals("State", stateInstance.getNodeName());
assertEquals(2, list.size());
assertTrue(list.contains("Action1a"));
assertTrue(list.contains("Action2a"));
processInstance.signalEvent("signal", "End");
nodeInstances = processInstance.getNodeInstances();
assertEquals(0, nodeInstances.size());
assertEquals(ProcessInstance.STATE_COMPLETED, processInstance.getState());
assertEquals(4, list.size());
assertTrue(list.contains("Action3a"));
assertTrue(list.contains("Action4a"));
}
public void testTimerState() {
PackageBuilder builder = new PackageBuilder();
Reader source = new StringReader(
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +
"<process xmlns=\"http://drools.org/drools-5.0/process\"\n" +
" xmlns:xs=\"http://www.w3.org/2001/XMLSchema-instance\"\n" +
" xs:schemaLocation=\"http://drools.org/drools-5.0/process drools-processes-5.0.xsd\"\n" +
" type=\"RuleFlow\" name=\"flow\" id=\"org.drools.state\" package-name=\"org.drools\" version=\"1\" >\n" +
"\n" +
" <header>\n" +
" <globals>\n" +
" <global identifier=\"list\" type=\"java.util.List\" />\n" +
" </globals>\n" +
" <variables>\n" +
" <variable name=\"s\" >\n" +
" <type name=\"org.drools.process.core.datatype.impl.type.StringDataType\" />\n" +
" <value>a</value>\n" +
" </variable>\n" +
" </variables>\n" +
" </header>\n" +
"\n" +
" <nodes>\n" +
" <start id=\"1\" name=\"Start\" />\n" +
" <state id=\"2\" name=\"State\" >\n" +
" <timers>\n" +
" <timer id=\"1\" delay=\"1s\" period=\"2s\" >\n" +
" <action type=\"expression\" dialect=\"mvel\" >list.add(\"Timer1\" + s);</action>\n" +
" </timer>\n" +
" <timer id=\"2\" delay=\"1s\" period=\"2s\" >\n" +
" <action type=\"expression\" dialect=\"mvel\" >list.add(\"Timer2\" + s);</action>\n" +
" </timer>\n" +
" </timers>\n" +
" </state>\n" +
" <end id=\"3\" name=\"End\" />\n" +
" </nodes>\n" +
"\n" +
" <connections>\n" +
" <connection from=\"1\" to=\"2\" />\n" +
" <connection from=\"2\" to=\"3\" />\n" +
" </connections>\n" +
"\n" +
"</process>");
builder.addRuleFlow(source);
Package pkg = builder.getPackage();
RuleBase ruleBase = RuleBaseFactory.newRuleBase();
ruleBase.addPackage( pkg );
final StatefulSession workingMemory = ruleBase.newStatefulSession();
List<String> list = new ArrayList<String>();
workingMemory.setGlobal("list", list);
new Thread(new Runnable() {
public void run() {
workingMemory.fireUntilHalt();
}
}).start();
// start process
RuleFlowProcessInstance processInstance = (RuleFlowProcessInstance)
workingMemory.startProcess("org.drools.state");
// should be in state A
assertEquals(ProcessInstance.STATE_ACTIVE, processInstance.getState());
Collection<NodeInstance> nodeInstances = processInstance.getNodeInstances();
assertEquals(1, nodeInstances.size());
StateNodeInstance stateInstance = (StateNodeInstance) nodeInstances.iterator().next();
assertEquals("State", stateInstance.getNodeName());
assertEquals(0, list.size());
try {
Thread.sleep(4000);
} catch (InterruptedException e) {
}
assertEquals(4, list.size());
assertTrue(list.contains("Timer1a"));
assertTrue(list.contains("Timer2a"));
processInstance.signalEvent("signal", "End");
nodeInstances = processInstance.getNodeInstances();
assertEquals(0, nodeInstances.size());
assertEquals(ProcessInstance.STATE_COMPLETED, processInstance.getState());
assertEquals(4, list.size());
try {
Thread.sleep(2000);
} catch (InterruptedException e) {
}
assertEquals(4, list.size());
workingMemory.halt();
}
}