Package org.drools.impl

Examples of org.drools.impl.StatefulKnowledgeSessionImpl

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        try {
            ReteooStatefulSession session = new ReteooStatefulSession( id,
                                                                       this,
                                                                       sessionConfig,
                                                                       environment );
            new StatefulKnowledgeSessionImpl(session);

            if ( sessionConfig.isKeepReference() ) {
                super.addStatefulSession( session );
                for (Object listener : session.getRuleBaseUpdateListeners()) {
                    addEventListener((RuleBaseEventListener) listener);
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                                                                   initialFactHandle,
                                                                   0,
                                                                   config,
                                                                   agenda,
                                                                   environment );
        new StatefulKnowledgeSessionImpl( session );

        initialFactHandle.setEntryPoint( session.getEntryPoints().get( EntryPoint.DEFAULT.getEntryPointId() ) );
        return session;
    }
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                      ((List) session.getGlobal( "list" )).size() );

        state.setState( "finished" );
       
       
        StatefulKnowledgeSession ksesion = SerializationHelper.getSerialisedStatefulKnowledgeSession( new StatefulKnowledgeSessionImpl( (ReteooWorkingMemory) session), MarshallerFactory.newIdentityMarshallingStrategy(), false );

        ksesion.fireAllRules();
        assertEquals( 3,
                      ((List) session.getGlobal( "list" )).size() );
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        StatefulSession session = ruleBase.newStatefulSession();
        session.insert( cell1 );
        FactHandle cellHandle = session.insert( cell );

        StatefulKnowledgeSession ksesion = SerializationHelper.getSerialisedStatefulKnowledgeSession( new StatefulKnowledgeSessionImpl( (ReteooWorkingMemory) session), MarshallerFactory.newIdentityMarshallingStrategy(), false );
       
        ksesion.fireAllRules();
        assertEquals( 9,
                      cell.getValue() );
    }
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        assertEquals( stilton1.getObject(),
                      results.get( 0 ) );

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

        GlobalResolver resolver = session.getGlobalResolver();
        byte[] serializedRulebase = DroolsStreamUtils.streamOut( ruleBase );
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        GlobalResolver resolver = session.getGlobalResolver();
       
        // serialize session and rulebase out
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        StatefulKnowledgeSessionImpl ksession = new StatefulKnowledgeSessionImpl( (ReteooStatefulSession ) session );
        Marshaller marshaller = MarshallerFactory.newMarshaller( ksession.getKnowledgeBase() );
        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( (ReteooStatefulSession ) session );
        Marshaller marshaller = MarshallerFactory.newMarshaller( ksession.getKnowledgeBase() );
        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 =  (ReteooStatefulSession ) 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( (ReteooStatefulSession ) session );
        marshaller = MarshallerFactory.newMarshaller( ksession.getKnowledgeBase() );
        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 =  (ReteooStatefulSession ) 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( (ReteooStatefulSession ) session );
        marshaller = MarshallerFactory.newMarshaller( ksession.getKnowledgeBase() );
        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( (ReteooStatefulSession ) session );
        Marshaller marshaller = MarshallerFactory.newMarshaller( ksession.getKnowledgeBase() );
        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 =  (ReteooStatefulSession ) 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( (ReteooStatefulSession ) session );
        marshaller = MarshallerFactory.newMarshaller( ksession.getKnowledgeBase() );
        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 =  (ReteooStatefulSession ) ksession.session;
        results.clear();
        session.setGlobal( "results",
                           results );

        // CASE 1: remove rule
        ruleBase.removeRule( "org.drools.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 =  (ReteooStatefulSession ) ksession.session;
        results.clear();
        session.setGlobal( "results",
                           results );

        // CASE 2: remove pkg
        ruleBase.removePackage( "org.drools.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( (ReteooStatefulSession ) session );
        marshaller = MarshallerFactory.newMarshaller( ksession.getKnowledgeBase() );
        marshaller.marshall( baos, ksession );
        baos.close();
        serializedRulebase = DroolsStreamUtils.streamOut( ruleBase );

        session.dispose();
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            ReteooStatefulSession session = new ReteooStatefulSession( id,
                                                                       this,
                                                                       executor,
                                                                       sessionConfig,
                                                                       environment );
            session.setKnowledgeRuntime(new StatefulKnowledgeSessionImpl(session));

            executor.setCommandExecutor( new CommandExecutor( session ) );

            if ( sessionConfig.isKeepReference() ) {
                super.addStatefulSession( session );
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                                                                   initialFactHandle,
                                                                   propagationCounter,
                                                                   config, 
                                                                   agenda,
                                                                   environment );
        session.setKnowledgeRuntime(new StatefulKnowledgeSessionImpl(session));
       
        initialFactHandle.setEntryPoint( session.getEntryPoints().get( EntryPoint.DEFAULT.getEntryPointId() ) );

        // RuleFlowGroups need to reference the session
        for ( RuleFlowGroup group : agenda.getRuleFlowGroupsMap().values() ) {
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Related Classes of org.drools.impl.StatefulKnowledgeSessionImpl

  • org.drools.base.DefaultKnowledgeHelper
  • org.drools.base.SequentialKnowledgeHelper
  • org.drools.command.impl.FixedKnowledgeCommandContext
  • org.drools.command.impl.KnowledgeCommandContext
  • org.drools.common.DefaultAgenda
  • org.drools.container.spring.beans.persistence.SpringSingleSessionCommandService
  • org.drools.container.spring.SpringDroolsListenersTest
  • org.drools.container.spring.SpringDroolsLoggersTest
  • org.drools.container.spring.SpringDroolsTest
  • org.drools.event.process.impl.ProcessCompletedEventImpl
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