Package org.kie.api.marshalling

Examples of org.kie.api.marshalling.Marshaller

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            ksession.insert( t2 );
            ksession.insert( t3 );
            ksession.insert( t4 );

            //ksession.fireAllRules();
            Marshaller marshaller = createSerializableMarshaller( knowledgeBase );
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            ObjectOutputStream out = new DroolsObjectOutputStream( baos );
            out.writeObject( knowledgeBase );
            marshaller.marshall( out,
                                 ksession );
            out.flush();
            out.close();

            ObjectInputStream in = new DroolsObjectInputStream( new ByteArrayInputStream( baos.toByteArray() ) );
            knowledgeBase = (KnowledgeBase) in.readObject();
            marshaller = createSerializableMarshaller( knowledgeBase );
            ksession = marshaller.unmarshall( in );
            in.close();

            // setting the global again, since it is not serialized with the session
            List<List> results = (List<List>) new ArrayList<List>();
            ksession.setGlobal( "results",
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        knowledgeBase.addKnowledgePackages( Collections.singleton( (KnowledgePackage) impl ) );
        SessionConfiguration config = new SessionConfiguration();
        config.setClockType( ClockType.PSEUDO_CLOCK );
        StatefulKnowledgeSession ksession = knowledgeBase.newStatefulKnowledgeSession( config, KnowledgeBaseFactory.newEnvironment() );
        PseudoClockScheduler scheduler = (PseudoClockScheduler) ksession.<SessionClock> getSessionClock();
        Marshaller marshaller = MarshallerFactory.newMarshaller( knowledgeBase );

        ksession.insert( "cheese" );
        assertTrue( fired.isEmpty() );
        //marshall, then unmarshall session
        readWrite( knowledgeBase, ksession, config );
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    private void readWrite(KnowledgeBase knowledgeBase,
                           KieSession ksession,
                           KieSessionConfiguration config) {
        try {
            Marshaller marshaller = MarshallerFactory.newMarshaller( knowledgeBase );
            ByteArrayOutputStream o = new ByteArrayOutputStream();
            marshaller.marshall( o, ksession );
            ksession = marshaller.unmarshall( new ByteArrayInputStream( o.toByteArray() ), config, KnowledgeBaseFactory.newEnvironment() );
            ksession.fireAllRules();
            //scheduler = ksession.<SessionClock>getSessionClock();
        } catch ( Exception e ) {
            throw new RuntimeException( e );
        }
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    }

    private Marshaller createSerializableMarshaller(KnowledgeBase knowledgeBase) {
        ObjectMarshallingStrategyAcceptor acceptor = MarshallerFactory.newClassFilterAcceptor( new String[]{"*.*"} );
        ObjectMarshallingStrategy strategy = MarshallerFactory.newSerializeMarshallingStrategy( acceptor );
        Marshaller marshaller = MarshallerFactory.newMarshaller( knowledgeBase,
                                                                 new ObjectMarshallingStrategy[]{strategy} );
        return marshaller;
    }
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                      results.get( 0 ) );

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

        GlobalResolver resolver = session.getGlobalResolver();
        byte[] serializedRulebase = DroolsStreamUtils.streamOut( ruleBase );
        session.dispose();

        // now deserialize 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 );
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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.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 = (ReteooStatefulSession) ksession.session;
        session.setGlobalResolver( resolver );
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        GlobalResolver resolver = session.getGlobalResolver();

        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        StatefulKnowledgeSessionImpl ksession = new StatefulKnowledgeSessionImpl( (ReteooStatefulSession) 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 = (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.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 = (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.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 = (ReteooStatefulSession) ksession.session;
        session.setGlobalResolver( resolver );
        results = (List) session.getGlobal( "results" );
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    public void writeExternal(ObjectOutput out) throws IOException {
        // all we do is create marshall to a byte[] and write to the stream
        StatefulKnowledgeSession ksession = (StatefulKnowledgeSession) getKnowledgeRuntime();

        Marshaller marshaller = MarshallerFactory.newMarshaller(ksession.getKieBase(), new ObjectMarshallingStrategy[]{MarshallerFactory.newSerializeMarshallingStrategy()});

        ByteArrayOutputStream stream = new ByteArrayOutputStream();
        marshaller.marshall( stream, (StatefulKnowledgeSession) getKnowledgeRuntime() );
        stream.close();

        byte[] bytes = stream.toByteArray();
        out.writeInt( bytes.length );
        out.write( bytes );
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Related Classes of org.kie.api.marshalling.Marshaller

  • org.drools.compiler.integrationtests.EventAccessorRestoreTest
  • org.drools.compiler.integrationtests.marshalling.MarshallingTest
  • org.drools.compiler.integrationtests.Misc2Test
  • org.drools.compiler.integrationtests.MiscTest2
  • org.drools.core.common.AbstractWorkingMemory
  • org.drools.core.impl.KnowledgeBaseImpl
  • org.drools.core.impl.StatefulKnowledgeSessionImpl
  • org.drools.core.reteoo.ReteooRuleBase
  • org.drools.core.reteoo.ReteooStatefulSession
  • org.drools.persistence.marshalling.util.MarshallingTestUtil
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