Java Code Examples for org.kie.api.runtime.KieSession#getFactHandles()
The following examples show how to use
org.kie.api.runtime.KieSession#getFactHandles() .
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Example 1
| Source File: FromExternalFactHandleCommand.java From kogito-runtimes with Apache License 2.0 | 6 votes |
|
public FactHandle execute(Context context) {
KieSession ksession = ((RegistryContext) context).lookup( KieSession.class );
Collection<FactHandle> factHandles = ksession.getFactHandles();
int fhId = Integer.parseInt(factHandleExternalForm.split(":")[1]);
for (FactHandle factHandle : factHandles) {
if (factHandle instanceof InternalFactHandle
&& ((InternalFactHandle) factHandle).getId() == fhId) {
InternalFactHandle fhClone = ((InternalFactHandle) factHandle).clone();
if (disconnected) {
fhClone.disconnect();
}
return fhClone;
}
}
return null;
}
Example 2
| Source File: BusPassService.java From buspass-ws with Apache License 2.0 | 6 votes |
|
/**
* Search the {@link KieSession} for bus passes.
*/
private BusPass findBusPass(KieSession kieSession) {
// Find all BusPass facts and 1st generation child classes of BusPass.
ObjectFilter busPassFilter = new ObjectFilter() {
@Override
public boolean accept(Object object) {
if (BusPass.class.equals(object.getClass())) return true;
if (BusPass.class.equals(object.getClass().getSuperclass())) return true;
return false;
}
};
// printFactsMessage(kieSession);
List<BusPass> facts = new ArrayList<BusPass>();
for (FactHandle handle : kieSession.getFactHandles(busPassFilter)) {
facts.add((BusPass) kieSession.getObject(handle));
}
if (facts.size() == 0) {
return null;
}
// Assumes that the rules will always be generating a single bus pass.
return facts.get(0);
}
Example 3
| Source File: FactFinder.java From qzr with Apache License 2.0 | 6 votes |
|
/**
* An assertion that a fact of the expected class with specified properties
* is in working memory.
*
* @param session
* A {@link KnowledgeSession} in which we are looking for the
* fact.
* @param factClass
* The simple name of the class of the fact we're looking for.
* @param expectedProperties
* A sequence of expected property name/value pairs.
* @throws IllegalAccessException
* @throws InvocationTargetException
* @throws NoSuchMethodException
*/
@SuppressWarnings("unchecked")
public List<T> findFacts(final KieSession session, final BeanPropertyFilter... expectedProperties) {
ObjectFilter filter = new ObjectFilter() {
@Override
public boolean accept(Object object) {
return object.getClass().equals(classToFind)
&& beanMatcher.matches(object, expectedProperties);
}
};
Collection<FactHandle> factHandles = session.getFactHandles(filter);
List<T> facts = new ArrayList<T>();
for (FactHandle handle : factHandles) {
facts.add((T) session.getObject(handle));
}
return facts;
}
Example 4
| Source File: FactFinder.java From qzr with Apache License 2.0 | 6 votes |
|
@SuppressWarnings("unchecked")
public List<T> findFacts(final KieSession session) {
ObjectFilter filter = new ObjectFilter() {
@Override
public boolean accept(Object object) {
return object.getClass().equals(classToFind);
}
};
Collection<FactHandle> factHandles = session.getFactHandles(filter);
List<T> facts = new ArrayList<T>();
for (FactHandle handle : factHandles) {
facts.add((T) session.getObject(handle));
}
return facts;
}
Example 5
| Source File: TruthMaintenanceTest.java From kogito-runtimes with Apache License 2.0 | 5 votes |
|
public InternalFactHandle getFactHandle(FactHandle factHandle,
KieSession ksession) {
Map<Long, FactHandle> handles = new HashMap<>();
for ( FactHandle fh : ksession.getFactHandles() ) {
handles.put( ((InternalFactHandle) fh).getId(),
fh );
}
return (InternalFactHandle) handles.get( ((InternalFactHandle) factHandle).getId() );
}
Example 6
| Source File: TruthMaintenanceTest.java From kogito-runtimes with Apache License 2.0 | 5 votes |
|
@Test
public void testDeleteLogicalAssertion() {
// BZ-1317026
String drl =
"rule R1 when\n" +
"then\n" +
" insertLogical( \"test\" ); \n" +
"end\n";
KieSession ksession = new KieHelper().addContent( drl, ResourceType.DRL )
.build()
.newKieSession();
try {
ksession.fireAllRules();
Collection<FactHandle> fhs = ksession.getFactHandles( new ClassObjectFilter( String.class ) );
assertEquals(1, fhs.size());
for (FactHandle fh : fhs) {
ksession.delete( fh );
}
fhs = ksession.getFactHandles( new ClassObjectFilter( String.class ) );
assertEquals(0, fhs.size());
} finally {
ksession.dispose();
}
}
Example 7
| Source File: TruthMaintenanceTest.java From kogito-runtimes with Apache License 2.0 | 5 votes |
|
@Test
public void testDeleteLogicalAssertionFromRule() {
// BZ-1317026
String drl =
"global java.util.List list;\n" +
"rule R1 when\n" +
"then\n" +
" insertLogical( \"test\" ); \n" +
"end\n" +
"rule R2 when\n" +
" $s : String()\n" +
"then\n" +
" list.add( $s ); \n" +
" delete( $s ); \n" +
"end\n";
KieSession ksession = new KieHelper().addContent( drl, ResourceType.DRL )
.build()
.newKieSession();
try {
List<String> list = new ArrayList<String>();
ksession.setGlobal( "list", list );
ksession.fireAllRules();
assertEquals(1, list.size());
assertEquals("test", list.get(0));
Collection<FactHandle> fhs = ksession.getFactHandles( new ClassObjectFilter( String.class ) );
assertEquals(0, fhs.size());
} finally {
ksession.dispose();
}
}
Example 8
| Source File: TruthMaintenanceTest.java From kogito-runtimes with Apache License 2.0 | 5 votes |
|
@Test
public void testStatedDeleteLogicalAssertionFromRule() {
// BZ-1317026
String drl =
"global java.util.List list;\n" +
"rule R1 when\n" +
"then\n" +
" insertLogical( \"test\" ); \n" +
"end\n" +
"rule R2 when\n" +
" $s : String()\n" +
"then\n" +
" list.add( $s ); \n" +
" delete( $s, org.kie.api.runtime.rule.FactHandle.State.STATED ); \n" +
"end\n";
KieSession ksession = new KieHelper().addContent( drl, ResourceType.DRL )
.build()
.newKieSession();
try {
List<String> list = new ArrayList<String>();
ksession.setGlobal( "list", list );
ksession.fireAllRules();
assertEquals(1, list.size());
assertEquals("test", list.get(0));
Collection<FactHandle> fhs = ksession.getFactHandles( new ClassObjectFilter( String.class ) );
assertEquals(1, fhs.size());
} finally {
ksession.dispose();
}
}
Example 9
| Source File: BusPassService.java From buspass-ws with Apache License 2.0 | 5 votes |
|
/**
* Print out details of all facts in working memory.
* Handy for debugging.
*/
@SuppressWarnings("unused")
private void printFactsMessage(KieSession kieSession) {
Collection<FactHandle> allHandles = kieSession.getFactHandles();
String msg = "\nAll facts:\n";
for (FactHandle handle : allHandles) {
msg += " " + kieSession.getObject(handle) + "\n";
}
System.out.println(msg);
}
Example 10
| Source File: FactFinder.java From qzr with Apache License 2.0 | 5 votes |
|
public void deleteFacts(final KieSession session, final BeanPropertyFilter... expectedProperties) {
ObjectFilter filter = new ObjectFilter() {
@Override
public boolean accept(Object object) {
return object.getClass().equals(classToFind)
&& beanMatcher.matches(object, expectedProperties);
}
};
Collection<FactHandle> factHandles = session.getFactHandles(filter);
for (FactHandle handle : factHandles) {
session.delete(handle);
}
}
Example 11
| Source File: TruthMaintenanceTest.java From kogito-runtimes with Apache License 2.0 | 4 votes |
|
@Test
public void testJustificationStateOverridingBySuperClass() {
//DROOLS-352
String droolsSource =
"package org.drools.tms.test; \n" +
"" +
"declare Foo end \n" +
"declare Bar extends Foo end \n" +
"" +
"rule Justify_Sub \n" +
"when \n" +
"then \n" +
" insertLogical( new Bar() ); \n" +
" insertLogical( 42.0 ); \n" +
"end \n" +
"rule Justify_Sup \n" +
"when \n" +
" $d : Double() \n" +
"then \n" +
" insertLogical( new Foo() ); \n" +
"end \n" +
"" +
"" +
"rule Fuu when Foo() then end \n" +
"rule Bor when Bar() then end \n";
/////////////////////////////////////
KieBaseConfiguration kieConf = KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
kieConf.setOption( EqualityBehaviorOption.EQUALITY );
KieBase kbase = loadKnowledgeBaseFromString( kieConf, droolsSource );
KieSession session = kbase.newKieSession();
try {
session.fireAllRules();
for ( FactHandle fh : session.getFactHandles() ) {
InternalFactHandle ifh = (InternalFactHandle) fh;
assertEquals(EqualityKey.JUSTIFIED, ifh.getEqualityKey().getStatus());
}
} finally {
session.dispose();
}
}
Example 12
| Source File: ProcessActionTest.java From kogito-runtimes with Apache License 2.0 | 4 votes |
|
@Test
public void testActionContextJava() {
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
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.actions\" package-name=\"org.drools\" version=\"1\" >\n" +
"\n" +
" <header>\n" +
" <imports>\n" +
" <import name=\"org.jbpm.integrationtests.test.Message\" />\n" +
" </imports>\n" +
" <globals>\n" +
" <global identifier=\"list\" type=\"java.util.List\" />\n" +
" </globals>\n" +
" <variables>\n" +
" <variable name=\"variable\" >\n" +
" <type name=\"org.jbpm.process.core.datatype.impl.type.StringDataType\" />\n" +
" <value>SomeText</value>\n" +
" </variable>\n" +
" </variables>\n" +
" </header>\n" +
"\n" +
" <nodes>\n" +
" <start id=\"1\" name=\"Start\" />\n" +
" <actionNode id=\"2\" name=\"MyActionNode\" >\n" +
" <action type=\"expression\" dialect=\"java\" >System.out.println(\"Triggered\");\n" +
"String myVariable = (String) kcontext.getVariable(\"variable\");\n" +
"list.add(myVariable);\n" +
"String nodeName = kcontext.getNodeInstance().getNodeName();\n" +
"list.add(nodeName);\n" +
"insert( new Message() );\n" +
"</action>\n" +
" </actionNode>\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>");
kbuilder.add(new ReaderResource(source), ResourceType.DRF);
KieBase kbase = kbuilder.newKieBase();
KieSession ksession = kbase.newKieSession();
List<String> list = new ArrayList<String>();
ksession.setGlobal("list", list);
ProcessInstance processInstance =
ksession.startProcess("org.drools.actions");
assertEquals(2, list.size());
assertEquals("SomeText", list.get(0));
assertEquals("MyActionNode", list.get(1));
Collection<FactHandle> factHandles = ksession.getFactHandles(new ObjectFilter() {
public boolean accept(Object object) {
return object instanceof Message;
}
});
assertFalse(factHandles.isEmpty());
assertEquals(ProcessInstance.STATE_COMPLETED, processInstance.getState());
}
Example 13
| Source File: ProcessActionTest.java From kogito-runtimes with Apache License 2.0 | 4 votes |
|
@Test
public void testActionContextMVEL() {
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
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.actions\" package-name=\"org.drools\" version=\"1\" >\n" +
"\n" +
" <header>\n" +
" <imports>\n" +
" <import name=\"org.jbpm.integrationtests.test.Message\" />\n" +
" </imports>\n" +
" <globals>\n" +
" <global identifier=\"list\" type=\"java.util.List\" />\n" +
" </globals>\n" +
" <variables>\n" +
" <variable name=\"variable\" >\n" +
" <type name=\"org.jbpm.process.core.datatype.impl.type.StringDataType\" />\n" +
" <value>SomeText</value>\n" +
" </variable>\n" +
" </variables>\n" +
" </header>\n" +
"\n" +
" <nodes>\n" +
" <start id=\"1\" name=\"Start\" />\n" +
" <actionNode id=\"2\" name=\"MyActionNode\" >\n" +
" <action type=\"expression\" dialect=\"mvel\" >System.out.println(\"Triggered\");\n" +
"System.out.println(kcontext.getKnowledgeRuntime());\n" +
"String myVariable = (String) kcontext.getVariable(\"variable\");\n" +
"list.add(myVariable);\n" +
"String nodeName = kcontext.getNodeInstance().getNodeName();\n" +
"list.add(nodeName);\n" +
"insert( new Message() );\n" +
"</action>\n" +
" </actionNode>\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>");
kbuilder.add(new ReaderResource(source), ResourceType.DRF);
if ( kbuilder.hasErrors() ) {
fail( kbuilder.getErrors().toString() );
}
KieBase kbase = kbuilder.newKieBase();
KieSession ksession = kbase.newKieSession();
List<String> list = new ArrayList<String>();
ksession.setGlobal("list", list);
ProcessInstance processInstance =
ksession.startProcess("org.drools.actions");
assertEquals(2, list.size());
assertEquals("SomeText", list.get(0));
assertEquals("MyActionNode", list.get(1));
Collection<FactHandle> factHandles = ksession.getFactHandles(new ObjectFilter() {
public boolean accept(Object object) {
return object instanceof Message;
}
});
assertFalse(factHandles.isEmpty());
assertEquals(ProcessInstance.STATE_COMPLETED, processInstance.getState());
}
Example 14
| Source File: ProcessActionTest.java From kogito-runtimes with Apache License 2.0 | 4 votes |
|
@Test
public void testActionContextJavaBackwardCheck() {
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
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.actions\" package-name=\"org.drools\" version=\"1\" >\n" +
"\n" +
" <header>\n" +
" <imports>\n" +
" <import name=\"org.jbpm.integrationtests.test.Message\" />\n" +
" </imports>\n" +
" <globals>\n" +
" <global identifier=\"list\" type=\"java.util.List\" />\n" +
" </globals>\n" +
" <variables>\n" +
" <variable name=\"variable\" >\n" +
" <type name=\"org.drools.core.process.core.datatype.impl.type.StringDataType\" />\n" +
" <value>SomeText</value>\n" +
" </variable>\n" +
" </variables>\n" +
" </header>\n" +
"\n" +
" <nodes>\n" +
" <start id=\"1\" name=\"Start\" />\n" +
" <actionNode id=\"2\" name=\"MyActionNode\" >\n" +
" <action type=\"expression\" dialect=\"java\" >System.out.println(\"Triggered\");\n" +
"String myVariable = (String) kcontext.getVariable(\"variable\");\n" +
"list.add(myVariable);\n" +
"String nodeName = kcontext.getNodeInstance().getNodeName();\n" +
"list.add(nodeName);\n" +
"insert( new Message() );\n" +
"</action>\n" +
" </actionNode>\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>");
kbuilder.add(new ReaderResource(source), ResourceType.DRF);
KieBase kbase = kbuilder.newKieBase();
KieSession ksession = kbase.newKieSession();
List<String> list = new ArrayList<String>();
ksession.setGlobal("list", list);
ProcessInstance processInstance =
ksession.startProcess("org.drools.actions");
assertEquals(2, list.size());
assertEquals("SomeText", list.get(0));
assertEquals("MyActionNode", list.get(1));
Collection<FactHandle> factHandles = ksession.getFactHandles(new ObjectFilter() {
public boolean accept(Object object) {
return object instanceof Message;
}
});
assertFalse(factHandles.isEmpty());
assertEquals(ProcessInstance.STATE_COMPLETED, processInstance.getState());
}
Example 15
| Source File: DroolsUtil.java From qzr with Apache License 2.0 | 2 votes |
|
/**
* Find all handles to facts in working memory matching an
* {@link ObjectFilter}. For example, to find all facts of a class called
* "MyObject":
*
* <pre>
* getFactHandles(new ObjectFilter() {
* public boolean accept(Object object) {
* return object.getClass().getSimpleName()
* .equals(MyObject.class.getSimpleName());
* }
* });
* </pre>
*
* @param filter
* The {@link ObjectFilter}.
* @return A collection of facts matching the filter.
*/
public static Collection<FactHandle> getFactHandles(KieSession ksession, ObjectFilter filter) {
return ksession.getFactHandles(filter);
}
