private KnowledgeBase buildKnowledgeBase(String... rules) {
String str = "";
str += "package org.kie \n";
str += "import " + A.class.getCanonicalName() + "\n";
str += "import " + B.class.getCanonicalName() + "\n";
str += "import " + C.class.getCanonicalName() + "\n";
str += "global java.util.List list \n";
int i = 0;
for (String lhs : rules) {
str += "rule rule" + (i++) + " when \n";
str += lhs;
str += "then \n";
str += "end \n";
}
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add(ResourceFactory.newByteArrayResource(str.getBytes()), ResourceType.DRL);
assertFalse(kbuilder.getErrors().toString(), kbuilder.hasErrors());
KieBaseConfiguration kconf = KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
kconf.setOption(LRUnlinkingOption.ENABLED);
KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase(kconf);
kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
return kbase;
}
@Test
public void testUpdateWithNonEffectiveActivations() throws Exception {
// JBRULES-3604
String str =
"package inheritance\n"
+ "\n"
+ "import org.drools.Address\n"
+ "\n"
+ "rule \"Parent\"\n"
+ " enabled false\n"
+ " when \n"
+ " $a : Address(suburb == \"xyz\")\n"
+ " then \n"
+ " System.out.println( $a ); \n"
+ "end \n"
+ "rule \"Child\" extends \"Parent\" \n"
+ " when \n"
+ " $b : Address( this == $a, street == \"123\")\n"
+ " then \n"
+ " System.out.println( $b ); \n"
+ "end";
KnowledgeBuilder builder = KnowledgeBuilderFactory.newKnowledgeBuilder();
builder.add(ResourceFactory.newByteArrayResource(str.getBytes()), ResourceType.DRL);
if (builder.hasErrors()) {
throw new RuntimeException(builder.getErrors().toString());
}
KieBaseConfiguration kconf = KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
kconf.setOption(LRUnlinkingOption.ENABLED);
KnowledgeBase knowledgeBase = KnowledgeBaseFactory.newKnowledgeBase(kconf);
knowledgeBase.addKnowledgePackages(builder.getKnowledgePackages());
StatefulKnowledgeSession ksession = knowledgeBase.newStatefulKnowledgeSession();
Address address = new Address();
address.setSuburb("xyz");
org.kie.runtime.rule.FactHandle addressHandle = ksession.insert(address);
int rulesFired = ksession.fireAllRules();
assertEquals(0, rulesFired);
address.setStreet("123");
ksession.update(addressHandle, address);
rulesFired = ksession.fireAllRules();
System.out.println(rulesFired);
assertEquals(1, rulesFired);
ksession.dispose();
}
private static StatefulKnowledgeSession getSession(String drl) {
KnowledgeBuilder kBuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kBuilder.add(new ClassPathResource("org/drools/examples/traits/" + drl), ResourceType.DRL);
if (kBuilder.hasErrors()) {
System.err.println(kBuilder.getErrors().toString());
}
KnowledgeBase kBase = KnowledgeBaseFactory.newKnowledgeBase();
kBase.addKnowledgePackages(kBuilder.getKnowledgePackages());
return kBase.newStatefulKnowledgeSession();
}
@Test
public void testClassNotFoundAfterDeserialization() throws Exception {
// JBRULES-3670
String drl =
"package completely.other.deal;\n"
+ "\n"
+ "declare Person\n"
+ " firstName : String\n"
+ " lastName : String\n"
+ "end\n"
+ "\n"
+ "rule \"now use it B\"\n"
+ " when\n"
+ " Person( $christianName, $surname; )\n"
+ " then\n"
+ " insert( new Person( $christianName, null ) );\n"
+ "end";
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add(ResourceFactory.newByteArrayResource(drl.getBytes()), ResourceType.DRL);
if (kbuilder.hasErrors()) {
throw new RuntimeException("" + kbuilder.getErrors());
}
FileManager fileManager = new FileManager().setUp();
try {
File root = fileManager.getRootDirectory();
ObjectOutputStream out =
new ObjectOutputStream(new FileOutputStream(new File(root, "test.drl.compiled")));
out.writeObject(kbuilder.getKnowledgePackages());
out.close();
KieBaseConfiguration kconf = KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
kconf.setOption(LRUnlinkingOption.ENABLED);
KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase(kconf);
ObjectInputStream in =
new ObjectInputStream(new FileInputStream(new File(root, "test.drl.compiled")));
kbase.addKnowledgePackages((Collection<KnowledgePackage>) in.readObject());
in.close();
} finally {
fileManager.tearDown();
}
}
public static void main(final String[] args) {
final KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add(
ResourceFactory.newClassPathResource(
"WorkItemConsequence1.drl", WorkItemConsequenceExample1.class),
ResourceType.DRL);
final KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
if (kbuilder.hasErrors()) {
throw new RuntimeException("Compilation error.\n" + kbuilder.getErrors().toString());
}
final StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
ksession
.getWorkItemManager()
.registerWorkItemHandler("EmailWorkItemHandler", new EmailWorkItemHandler());
// KnowledgeRuntimeLogger logger = KnowledgeRuntimeLoggerFactory.newFileLogger(ksession,
// "log/WorkItemConsequence.log");
// Brains does not cause concern
PersonLocation brains = new PersonLocation("Brains", 5);
ksession.insert(brains);
ksession.fireAllRules();
// Gargamel is too far away to care
PersonLocation gargamel = new PersonLocation("Gargamel", 10);
FactHandle gargamelFactHandle = ksession.insert(gargamel);
ksession.fireAllRules();
// Uh oh, Gargamel moves closer
gargamel.setDistance(5);
ksession.update(gargamelFactHandle, gargamel);
ksession.fireAllRules();
// logger.close();
ksession.dispose(); // Stateful rule session must always be disposed when finished
}
@Test
public void testMVELForLoop() throws Exception {
// JBRULES-3717
String str =
"rule demo\n"
+ "dialect \"mvel\"\n"
+ "when\n"
+ "then\n"
+ " for ( int i = 1; i <= 3; i++ ) {\n"
+ " insert( \"foo\" + i );\n"
+ " }\n"
+ "end";
KnowledgeBuilder builder = KnowledgeBuilderFactory.newKnowledgeBuilder();
builder.add(ResourceFactory.newByteArrayResource(str.getBytes()), ResourceType.DRL);
if (builder.hasErrors()) {
throw new RuntimeException(builder.getErrors().toString());
}
}
@Test
public void testDynamicAddRule() {
// DROOLS-17
String str =
"import org.drools.integrationtests.MiscTest2.A\n"
+ "rule r1 when\n"
+ " $a : A( f1 == 1 )\n"
+ "then\n"
+ "end\n"
+ "\n"
+ "rule r2 when\n"
+ " $a : A( f2 == 1 )\n"
+ "then\n"
+ "end\n"
+ "\n"
+ "rule r3 when\n"
+ " $a : A( f3 == 1 )"
+ "then\n"
+ "end";
String str2 =
"import org.drools.integrationtests.MiscTest2.A\n"
+ "rule r4 when\n"
+ " $a : A( f2 == 1, f4 == 1 )"
+ "then\n"
+ "end";
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add(ResourceFactory.newByteArrayResource(str.getBytes()), ResourceType.DRL);
if (kbuilder.hasErrors()) {
fail(kbuilder.getErrors().toString());
}
KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
FactHandle fh = ksession.insert(new A(1, 1, 1, 1));
ksession.fireAllRules();
kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add(ResourceFactory.newByteArrayResource(str2.getBytes()), ResourceType.DRL);
if (kbuilder.hasErrors()) {
fail(kbuilder.getErrors().toString());
}
kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
ksession.fireAllRules();
// this second insert forces the regeneration of the otnIds
ksession.insert(new A(2, 2, 2, 2));
LeftTuple leftTuple = ((DefaultFactHandle) fh).getFirstLeftTuple();
ObjectTypeNode.Id letTupleOtnId = leftTuple.getLeftTupleSink().getLeftInputOtnId();
leftTuple = leftTuple.getLeftParentNext();
while (leftTuple != null) {
assertTrue(letTupleOtnId.before(leftTuple.getLeftTupleSink().getLeftInputOtnId()));
letTupleOtnId = leftTuple.getLeftTupleSink().getLeftInputOtnId();
leftTuple = leftTuple.getLeftParentNext();
}
}