Package org.drools.core.impl

Examples of org.drools.core.impl.StatefulKnowledgeSessionImpl

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                                                                 new Object[]{workerId} );
        }

        assertNotNull( retractedWorker );

        StatefulKnowledgeSessionImpl sessionImpl = (StatefulKnowledgeSessionImpl) ksession;

        ReteooWorkingMemoryInterface reteWorkingMemory = sessionImpl.session;
        AbstractWorkingMemory abstractWorkingMemory = (AbstractWorkingMemory) reteWorkingMemory;

        InternalRuleBase ruleBase = (InternalRuleBase) abstractWorkingMemory.getRuleBase();
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        assertEquals( stilton1.getObject(),
                      results.get( 0 ) );

        // serialize session and rulebase out
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        StatefulKnowledgeSessionImpl ksession = new StatefulKnowledgeSessionImpl( (AbstractWorkingMemory) session );
        Marshaller marshaller = MarshallerFactory.newMarshaller( ksession.getKieBase() );
        marshaller.marshall( baos,
                             ksession );
        baos.close();

        GlobalResolver resolver = session.getGlobalResolver();
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        GlobalResolver resolver = session.getGlobalResolver();

        // serialize session and rulebase out
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        StatefulKnowledgeSessionImpl ksession = new StatefulKnowledgeSessionImpl( (AbstractWorkingMemory) session );
        Marshaller marshaller = MarshallerFactory.newMarshaller( ksession.getKieBase() );
        marshaller.marshall( baos,
                             ksession );
        baos.close();

        byte[] serializedRulebase = DroolsStreamUtils.streamOut( ruleBase );
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        session.fireAllRules();

        GlobalResolver resolver = session.getGlobalResolver();

        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        StatefulKnowledgeSessionImpl ksession = new StatefulKnowledgeSessionImpl( (AbstractWorkingMemory) session );
        Marshaller marshaller = MarshallerFactory.newMarshaller( ksession.getKieBase() );
        marshaller.marshall( baos,
                             ksession );
        baos.close();
        byte[] serializedRulebase = DroolsStreamUtils.streamOut( ruleBase );

        session.dispose();

        assertEquals( 1,
                      results.size() );
        assertEquals( stilton1.getObject(),
                      results.get( 0 ) );

        // now recreate the rulebase, deserialize the session and test it
        ruleBase = (RuleBase) DroolsStreamUtils.streamIn( serializedRulebase );
        marshaller = MarshallerFactory.newMarshaller( new KnowledgeBaseImpl( ruleBase ) );
        ksession = (StatefulKnowledgeSessionImpl) marshaller.unmarshall( new ByteArrayInputStream( baos.toByteArray() ),
                                                                         KnowledgeBaseFactory.newKnowledgeSessionConfiguration(),
                                                                         EnvironmentFactory.newEnvironment() );
        session = (AbstractWorkingMemory) ksession.session;
        session.setGlobalResolver( resolver );
        results = (List) session.getGlobal( "results" );

        builder = new PackageBuilder();
        builder.addPackageFromDrl( new InputStreamReader( getClass().getResourceAsStream( "../test_Dynamic3_0.drl" ) ) );
        pkg = SerializationHelper.serializeObject( builder.getPackage() );

        ruleBase.addPackage( pkg );

        InternalFactHandle stilton2 = (InternalFactHandle) session.insert( new Cheese( "stilton",
                                                                                       20 ) );
        InternalFactHandle brie2 = (InternalFactHandle) session.insert( new Cheese( "brie",
                                                                                    20 ) );
        InternalFactHandle bob1 = (InternalFactHandle) session.insert( new Person( "bob",
                                                                                   20 ) );
        InternalFactHandle bob2 = (InternalFactHandle) session.insert( new Person( "bob",
                                                                                   30 ) );
        session.fireAllRules();

        assertEquals( 4,
                      results.size() );
        assertEquals( stilton2.getObject(),
                      results.get( 1 ) );
        assertEquals( bob2.getObject(),
                      results.get( 2 ) );
        assertEquals( bob1.getObject(),
                      results.get( 3 ) );

        serializedRulebase = null;

        resolver = session.getGlobalResolver();
        baos = new ByteArrayOutputStream();
        ksession = new StatefulKnowledgeSessionImpl( (AbstractWorkingMemory) session );
        marshaller = MarshallerFactory.newMarshaller( ksession.getKieBase() );
        marshaller.marshall( baos,
                             ksession );
        baos.close();
        serializedRulebase = DroolsStreamUtils.streamOut( ruleBase );

        session.dispose();

        // now recreate the rulebase, deserialize the session and test it
        ruleBase = (RuleBase) DroolsStreamUtils.streamIn( serializedRulebase );
        marshaller = MarshallerFactory.newMarshaller( new KnowledgeBaseImpl( ruleBase ) );
        ksession = (StatefulKnowledgeSessionImpl) marshaller.unmarshall( new ByteArrayInputStream( baos.toByteArray() ),
                                                                         KnowledgeBaseFactory.newKnowledgeSessionConfiguration(),
                                                                         EnvironmentFactory.newEnvironment() );
        session = (AbstractWorkingMemory) ksession.session;
        session.setGlobalResolver( resolver );
        results = (List) session.getGlobal( "results" );

        builder = new PackageBuilder();
        builder.addPackageFromDrl( new InputStreamReader( getClass().getResourceAsStream( "../test_Dynamic1_2.drl" ) ) );
        pkg = SerializationHelper.serializeObject( builder.getPackage() );
        ruleBase.addPackage( pkg );

        InternalFactHandle stilton3 = (InternalFactHandle) session.insert( new Cheese( "stilton",
                                                                                       40 ) );
        InternalFactHandle brie3 = (InternalFactHandle) session.insert( new Cheese( "brie",
                                                                                    40 ) );
        InternalFactHandle bob3 = (InternalFactHandle) session.insert( new Person( "bob",
                                                                                   40 ) );
        InternalFactHandle bob4 = (InternalFactHandle) session.insert( new Person( "bob",
                                                                                   40 ) );
        InternalFactHandle addr1 = (InternalFactHandle) session.insert( new Address( "bangalore" ) );
        InternalFactHandle addr2 = (InternalFactHandle) session.insert( new Address( "India" ) );

        session.fireAllRules();

        assertEquals( 9,
                      results.size() );
        assertEquals( stilton3.getObject(),
                      results.get( 4 ) );
        assertEquals( bob4.getObject(),
                      results.get( 5 ) );
        assertEquals( bob3.getObject(),
                      results.get( 6 ) );
        assertEquals( addr2.getObject(),
                      results.get( 7 ) );
        assertEquals( addr1.getObject(),
                      results.get( 8 ) );

        serializedRulebase = null;

        resolver = session.getGlobalResolver();
        baos = new ByteArrayOutputStream();
        ksession = new StatefulKnowledgeSessionImpl( (AbstractWorkingMemory) session );
        marshaller = MarshallerFactory.newMarshaller( ksession.getKieBase() );
        marshaller.marshall( baos,
                             ksession );
        baos.close();
        serializedRulebase = DroolsStreamUtils.streamOut( ruleBase );
        session.dispose();
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        session.fireAllRules();

        GlobalResolver resolver = session.getGlobalResolver();

        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        StatefulKnowledgeSessionImpl ksession = new StatefulKnowledgeSessionImpl( (AbstractWorkingMemory) session );
        Marshaller marshaller = MarshallerFactory.newMarshaller( ksession.getKieBase() );
        marshaller.marshall( baos,
                             ksession );
        baos.close();
        byte[] serializedRulebase = DroolsStreamUtils.streamOut( ruleBase );

        session.dispose();

        assertEquals( 1,
                      results.size() );
        assertEquals( stilton1.getObject(),
                      results.get( 0 ) );

        // now recreate the rulebase, deserialize the session and test it
        ruleBase = (RuleBase) DroolsStreamUtils.streamIn( serializedRulebase );
        marshaller = MarshallerFactory.newMarshaller( new KnowledgeBaseImpl( ruleBase ) );
        ksession = (StatefulKnowledgeSessionImpl) marshaller.unmarshall( new ByteArrayInputStream( baos.toByteArray() ),
                                                                         KnowledgeBaseFactory.newKnowledgeSessionConfiguration(),
                                                                         EnvironmentFactory.newEnvironment() );
        session = (AbstractWorkingMemory) ksession.session;
        results.clear();
        session.setGlobal( "results",
                           results );

        builder = new PackageBuilder();
        builder.addPackageFromDrl( new InputStreamReader( getClass().getResourceAsStream( "../test_Dynamic3_0.drl" ) ) );
        pkg = SerializationHelper.serializeObject( builder.getPackage() );

        ruleBase.addPackage( pkg );

        InternalFactHandle stilton2 = (InternalFactHandle) session.insert( new Cheese( "stilton",
                                                                                       20 ) );
        InternalFactHandle brie2 = (InternalFactHandle) session.insert( new Cheese( "brie",
                                                                                    20 ) );
        InternalFactHandle bob1 = (InternalFactHandle) session.insert( new Person( "bob",
                                                                                   20 ) );
        InternalFactHandle bob2 = (InternalFactHandle) session.insert( new Person( "bob",
                                                                                   30 ) );
        session.fireAllRules();

        assertEquals( 3,
                      results.size() );
        assertEquals( stilton2.getObject(),
                      results.get( 0 ) );
        assertEquals( bob2.getObject(),
                      results.get( 1 ) );
        assertEquals( bob1.getObject(),
                      results.get( 2 ) );

        serializedRulebase = null;

        baos = new ByteArrayOutputStream();
        ksession = new StatefulKnowledgeSessionImpl( (AbstractWorkingMemory) session );
        marshaller = MarshallerFactory.newMarshaller( ksession.getKieBase() );
        marshaller.marshall( baos,
                             ksession );
        baos.close();
        serializedRulebase = DroolsStreamUtils.streamOut( ruleBase );

        session.dispose();

        // now recreate the rulebase, deserialize the session and test it
        ruleBase = (RuleBase) DroolsStreamUtils.streamIn( serializedRulebase );
        marshaller = MarshallerFactory.newMarshaller( new KnowledgeBaseImpl( ruleBase ) );
        ksession = (StatefulKnowledgeSessionImpl) marshaller.unmarshall( new ByteArrayInputStream( baos.toByteArray() ),
                                                                         KnowledgeBaseFactory.newKnowledgeSessionConfiguration(),
                                                                         EnvironmentFactory.newEnvironment() );
        session = (AbstractWorkingMemory) ksession.session;
        results.clear();
        session.setGlobal( "results",
                           results );

        // CASE 1: remove rule
        ruleBase.removeRule( "org.drools.compiler.test",
                             "like stilton" );

        InternalFactHandle stilton3 = (InternalFactHandle) session.insert( new Cheese( "stilton",
                                                                                       20 ) );
        InternalFactHandle brie3 = (InternalFactHandle) session.insert( new Cheese( "brie",
                                                                                    20 ) );
        InternalFactHandle bob3 = (InternalFactHandle) session.insert( new Person( "bob",
                                                                                   20 ) );
        InternalFactHandle bob4 = (InternalFactHandle) session.insert( new Person( "bob",
                                                                                   30 ) );
        session.fireAllRules();

        assertEquals( 2,
                      results.size() );
        assertEquals( bob4.getObject(),
                      results.get( 0 ) );
        assertEquals( bob3.getObject(),
                      results.get( 1 ) );

        // now recreate the rulebase, deserialize the session and test it
        ruleBase = (RuleBase) DroolsStreamUtils.streamIn( serializedRulebase );
        marshaller = MarshallerFactory.newMarshaller( new KnowledgeBaseImpl( ruleBase ) );
        ksession = (StatefulKnowledgeSessionImpl) marshaller.unmarshall( new ByteArrayInputStream( baos.toByteArray() ),
                                                                         KnowledgeBaseFactory.newKnowledgeSessionConfiguration(),
                                                                         EnvironmentFactory.newEnvironment() );
        session = (AbstractWorkingMemory) ksession.session;
        results.clear();
        session.setGlobal( "results",
                           results );

        // CASE 2: remove pkg
        ruleBase.removePackage( "org.drools.compiler.test" );

        InternalFactHandle stilton4 = (InternalFactHandle) session.insert( new Cheese( "stilton",
                                                                                       20 ) );
        InternalFactHandle brie4 = (InternalFactHandle) session.insert( new Cheese( "brie",
                                                                                    20 ) );
        InternalFactHandle bob5 = (InternalFactHandle) session.insert( new Person( "bob",
                                                                                   20 ) );
        InternalFactHandle bob6 = (InternalFactHandle) session.insert( new Person( "bob",
                                                                                   30 ) );
        session.fireAllRules();

        assertEquals( 2,
                      results.size() );
        assertEquals( bob6.getObject(),
                      results.get( 0 ) );
        assertEquals( bob5.getObject(),
                      results.get( 1 ) );

        byte[] serializedSession = null;
        serializedRulebase = null;
        baos = new ByteArrayOutputStream();
        ksession = new StatefulKnowledgeSessionImpl( (AbstractWorkingMemory) session );
        marshaller = MarshallerFactory.newMarshaller( ksession.getKieBase() );
        marshaller.marshall( baos,
                             ksession );
        baos.close();
        serializedRulebase = DroolsStreamUtils.streamOut( ruleBase );
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    private StatefulKnowledgeSessionImpl createWorkingMemory(InternalKnowledgeBase kBase) {
        // WorkingMemoryEntryPoint
        KieSessionConfiguration ksconf = KnowledgeBaseFactory.newKnowledgeSessionConfiguration();
        ksconf.setOption( ClockTypeOption.get( "pseudo" ) );
        SessionConfiguration sessionConf = ((SessionConfiguration) ksconf);
        StatefulKnowledgeSessionImpl wm = new StatefulKnowledgeSessionImpl(1, kBase, true, sessionConf, EnvironmentFactory.newEnvironment());
       
        return wm;
    }
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    }
   
    @Test
    public void backwardsCompatibleEventFactHandleTest() throws IOException, ClassNotFoundException {
        InternalKnowledgeBase kBase = createKnowledgeBase();
        StatefulKnowledgeSessionImpl wm = createWorkingMemory(kBase);
        InternalFactHandle factHandle = createEventFactHandle(wm, kBase);
       
        // marshall/serialize workItem
        byte [] byteArray;
        {
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        InternalKnowledgeBase kBase = (InternalKnowledgeBase) KnowledgeBaseFactory.newKnowledgeBase();

        PropagationContextFactory pctxFactory = kBase.getConfiguration().getComponentFactory().getPropagationContextFactory();
        kBase.addPackage(pkg);

        StatefulKnowledgeSessionImpl ksession = (StatefulKnowledgeSessionImpl)kBase.newStatefulKnowledgeSession();

        final Cheese cheddar = new Cheese( "cheddar", 10 );
        final InternalFactHandle f0 = (InternalFactHandle) ksession.insert( cheddar );
        final LeftTupleImpl tuple = new LeftTupleImpl( f0, null, true );
        f0.removeLeftTuple(tuple);

        final AgendaItem item = new AgendaItemImpl( 0, tuple, 10,
                                                pctxFactory.createPropagationContext(1, 1, null, tuple, null),
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        final MVELConsequenceBuilder builder = new MVELConsequenceBuilder();
        builder.build( context, RuleImpl.DEFAULT_CONSEQUENCE_NAME );

        InternalKnowledgeBase kBase = (InternalKnowledgeBase) KnowledgeBaseFactory.newKnowledgeBase();
        StatefulKnowledgeSessionImpl ksession = (StatefulKnowledgeSessionImpl)kBase.newStatefulKnowledgeSession();

        final Cheese cheddar = new Cheese( "cheddar",
                                           10 );
        final InternalFactHandle f0 = (InternalFactHandle) ksession.insert( cheddar );
        final LeftTupleImpl tuple = new LeftTupleImpl( f0,
                                               null,
                                               true );

        final AgendaItem item = new AgendaItemImpl( 0,
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        final EvalCondition eval = (EvalCondition) builder.build( context,
                                                                  evalDescr );
        ((MVELEvalExpression) eval.getEvalExpression()).compile( (MVELDialectRuntimeData) pkgBuilder.getPackageRegistry( pkg.getName() ).getDialectRuntimeRegistry().getDialectData( "mvel" ) );

        InternalKnowledgeBase kBase = (InternalKnowledgeBase) KnowledgeBaseFactory.newKnowledgeBase();
        StatefulKnowledgeSessionImpl ksession = (StatefulKnowledgeSessionImpl)kBase.newStatefulKnowledgeSession();

        MockLeftTupleSink sink = new MockLeftTupleSink();
        final Cheese cheddar = new Cheese( "cheddar",
                                           10 );
        final InternalFactHandle f0 = (InternalFactHandle) ksession.insert( cheddar );

        final LeftTupleImpl tuple = new LeftTupleImpl( f0, sink, true );
        f0.removeLeftTuple(tuple);
       
        Object evalContext = eval.createContext();

        assertTrue( eval.isAllowed( tuple,
                                    ksession,
                                    evalContext ) );

        cheddar.setPrice( 9 );
        ksession.update( f0,
                   cheddar );
        assertFalse( eval.isAllowed( tuple,
                                     ksession,
                                     evalContext ) );
    }
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Related Classes of org.drools.core.impl.StatefulKnowledgeSessionImpl

  • org.drools.compiler.integrationtests.CepEspTest
  • org.drools.compiler.integrationtests.marshalling.FactHandleMarshallingTest
  • org.drools.compiler.integrationtests.marshalling.MarshallingTest
  • org.drools.compiler.integrationtests.QueryTest
  • org.drools.compiler.rule.builder.dialect.mvel.MVELAccumulateBuilderTest
  • org.drools.compiler.rule.builder.dialect.mvel.MVELConsequenceBuilderTest
  • org.drools.compiler.rule.builder.dialect.mvel.MVELSalienceBuilderTest
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  • org.drools.container.spring.SpringDroolsTest
  • org.drools.core.audit.WorkingMemoryLogger
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