Package org.drools.common

Examples of org.drools.common.InternalRuleBase


    }

    // Input methods
    public ProcessInstance readProcessInstance(MarshallerReaderContext context) throws IOException {
        ObjectInputStream stream = context.stream;
        InternalRuleBase ruleBase = context.ruleBase;
        InternalWorkingMemory wm = context.wm;

        WorkflowProcessInstanceImpl processInstance = createProcessInstance();
        processInstance.setId(stream.readLong());
        String processId = stream.readUTF();
        processInstance.setProcessId(processId);
        Process process = ruleBase.getProcess(processId);
        if (ruleBase != null) {
            processInstance.setProcess(process);
        }
        processInstance.setState(stream.readInt());
        long nodeInstanceCounter = stream.readLong();
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        return false;
    }

    public static ObjectTypeNode attachObjectTypeNode(BuildContext context,
                                                      ObjectType objectType) {
        final InternalRuleBase ruleBase = context.getRuleBase();
        ruleBase.lock();
        try {
            InternalWorkingMemory[] wms = context.getWorkingMemories();

            EntryPointNode epn = ruleBase.getRete().getEntryPointNode( context.getCurrentEntryPoint() );
            if ( epn == null ) {
                epn = new EntryPointNode( context.getNextId(),
                                          ruleBase.getRete(),
                                          context );
                epn.attach( context );
            }

            ObjectTypeNode otn = new ObjectTypeNode( context.getNextId(),
                                                     epn,
                                                     objectType,
                                                     context );

            long expirationOffset = getExpiratioOffsetForType( context,
                                                               objectType );
            otn.setExpirationOffset( expirationOffset );

            otn.attach( context );

            return otn;
        } finally {
            ruleBase.unlock();
        }
    }
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    private static class ExecutorHolder {
        private static final Executor executor = ExecutorProviderFactory.getExecutorProvider().getExecutor();
    }

    private void executeJitting(Object object, InternalWorkingMemory workingMemory, LeftTuple leftTuple) {
        InternalRuleBase ruleBase = ((InternalRuleBase) workingMemory.getRuleBase());
        if ( MemoryUtil.permGenStats.isUsageThresholdExceeded(ruleBase.getConfiguration().getPermGenThreshold()) ) {
            return;
        }

        CompositeClassLoader classLoader = ruleBase.getRootClassLoader();
        if (analyzedCondition == null) {
            analyzedCondition = ((MvelConditionEvaluator) conditionEvaluator).getAnalyzedCondition(object, workingMemory, leftTuple);
        }
        try {
            conditionEvaluator = ASMConditionEvaluatorJitter.jitEvaluator(expression, analyzedCondition, declarations, classLoader, leftTuple);
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        }
    }

    public static Activation readActivation( MarshallerReaderContext context ) throws IOException {
        ObjectInputStream stream = context.stream;
        InternalRuleBase ruleBase = context.ruleBase;
        InternalWorkingMemory wm = context.wm;

        long activationNumber = stream.readLong();

        int pos = stream.readInt();
        LeftTuple leftTuple = context.terminalTupleMap.get( pos );

        int salience = stream.readInt();

        String pkgName = stream.readUTF();
        String ruleName = stream.readUTF();
        Package pkg = ruleBase.getPackage( pkgName );
        Rule rule = pkg.getRule( ruleName );

        RuleTerminalNode ruleTerminalNode = (RuleTerminalNode) leftTuple.getLeftTupleSink();

        PropagationContext pc = context.propagationContexts.get( stream.readLong() );
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    }

    public static void readPropagationContext( MarshallerReaderContext context ) throws IOException {
        ObjectInputStream stream = context.stream;
        InternalRuleBase ruleBase = context.ruleBase;

        int type = stream.readInt();

        Rule rule = null;
        if (stream.readBoolean()) {
            String pkgName = stream.readUTF();
            String ruleName = stream.readUTF();
            Package pkg = ruleBase.getPackage( pkgName );
            rule = pkg.getRule( ruleName );
        }

        LeftTuple leftTuple = null;
        if (stream.readBoolean()) {
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            /*
             * If the ruleBase is sequential, after rebuilding or incremental
             * update, do an ordering of the ReteooBuilder
             */
            InternalRuleBase ruleBase = (InternalRuleBase) ((KnowledgeBaseImpl) this.kbase).ruleBase;
            synchronized (ruleBase.getPackagesMap()) {
                if (ruleBase.getConfiguration().isSequential()) {
                    ruleBase.getReteooBuilder().order();
                }
            }
        }
        this.listener.debug("KnowledgeAgent finished rebuilding KnowledgeBase using ChangeSet");
    }
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                      agendaGroup.size() );
    }

    @Test
    public void testAgendaGroupLockOnActive() {
        final InternalRuleBase ruleBase = (InternalRuleBase) RuleBaseFactory.newRuleBase();

        final ReteooWorkingMemory workingMemory = (ReteooWorkingMemory) ruleBase.newStatefulSession();
        final InternalAgenda agenda = (InternalAgenda) workingMemory.getAgenda();

        // create the agendaGroup
        final InternalAgendaGroup agendaGroup = new BinaryHeapQueueAgendaGroup( "agendaGroup",
                                                                                ruleBase );
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    @Test
    public void testSequentialAgenda() {
        RuleBaseConfiguration conf = new RuleBaseConfiguration();
        conf.setSequential( true );
        InternalRuleBase ruleBase = (InternalRuleBase) RuleBaseFactory.newRuleBase( conf );

        // create the consequence
        final Consequence consequence = new Consequence() {
            private static final long serialVersionUID = 510l;

            public void evaluate(KnowledgeHelper knowledgeHelper,
                                 WorkingMemory workingMemory) {
                // do nothing
            }

            public void readExternal(ObjectInput in) throws IOException,
                                                    ClassNotFoundException {

            }

            public void writeExternal(ObjectOutput out) throws IOException {

            }

            public String getName() {
                return "default";
            }
        };

        final LeftTupleImpl tuple = new LeftTupleImpl( new DefaultFactHandle( 1,
                                                                      "cheese" ),
                                               null,
                                               true );

        // create a rule for each agendaGroup
        final Rule rule0 = new Rule( "test-rule0" );
        final RuleTerminalNode node0 = new RuleTerminalNode( 3,
                                                             new MockTupleSource( 2 ),
                                                             rule0,
                                                             rule0.getLhs(),
                                                             0,
                                                             buildContext );
        node0.setSequence( 72 );
        rule0.setConsequence( consequence );
        final PropagationContext context0 = new PropagationContextImpl( 0,
                                                                        PropagationContext.INSERTION,
                                                                        rule0,
                                                                        null,
                                                                        new DefaultFactHandle() );

        final Rule rule1 = new Rule( "test-rule1",
                                     "agendaGroup1" );
        final RuleTerminalNode node1 = new RuleTerminalNode( 5,
                                                             new MockTupleSource( 4 ),
                                                             rule1,
                                                             rule1.getLhs(),
                                                             0,
                                                             buildContext );
        node1.setSequence( 10 );
        rule1.setConsequence( consequence );
        final PropagationContext context1 = new PropagationContextImpl( 0,
                                                                        PropagationContext.INSERTION,
                                                                        rule1,
                                                                        null,
                                                                        new DefaultFactHandle() );

        final Rule rule2 = new Rule( "test-rule2",
                                     "agendaGroup1" );
        final RuleTerminalNode node2 = new RuleTerminalNode( 7,
                                                             new MockTupleSource( 6 ),
                                                             rule2,
                                                             rule2.getLhs(),
                                                             0,
                                                             buildContext );
        node2.setSequence( 7 );
        rule2.setConsequence( consequence );
        final PropagationContext context2 = new PropagationContextImpl( 0,
                                                                        PropagationContext.INSERTION,
                                                                        rule2,
                                                                        null,
                                                                        new DefaultFactHandle() );

        final Rule rule3 = new Rule( "test-rule3",
                                     "agendaGroup2" );
        final RuleTerminalNode node3 = new RuleTerminalNode( 9,
                                                             new MockTupleSource( 8 ),
                                                             rule3,
                                                             rule3.getLhs(),
                                                             0,
                                                             buildContext );
        node3.setSequence( 0 );
        rule3.setConsequence( consequence );
        final PropagationContext context3 = new PropagationContextImpl( 0,
                                                                        PropagationContext.INSERTION,
                                                                        rule3,
                                                                        null,
                                                                        new DefaultFactHandle() );

        ruleBase.getAgendaGroupRuleTotals().put( "MAIN",
                                                 new Integer( 100 ) );
        ruleBase.getAgendaGroupRuleTotals().put( "agendaGroup1",
                                                 new Integer( 10 ) );
        ruleBase.getAgendaGroupRuleTotals().put( "agendaGroup2",
                                                 new Integer( 1 ) );

        InternalWorkingMemory workingMemory = new ReteooWorkingMemory( 0,
                                                                       ruleBase );
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        return false;
    }

    public static ObjectTypeNode attachObjectTypeNode(BuildContext context,
                                                      ObjectType objectType) {
        final InternalRuleBase ruleBase = context.getRuleBase();
        ruleBase.readLock();
        try {
            InternalWorkingMemory[] wms = context.getWorkingMemories();

            EntryPointNode epn = ruleBase.getRete().getEntryPointNode( context.getCurrentEntryPoint() );
            if ( epn == null ) {
                epn = new EntryPointNode( context.getNextId(),
                                          ruleBase.getRete(),
                                          context );
                if ( wms.length > 0 ) {
                    epn.attach( wms );
                } else {
                    epn.attach();
                }
            }

            ObjectTypeNode otn = new ObjectTypeNode( context.getNextId(),
                                                     epn,
                                                     objectType,
                                                     context );

            long expirationOffset = getExpiratioOffsetForType( context,
                                                               objectType );
            otn.setExpirationOffset( expirationOffset );

            if ( wms.length > 0 ) {
                otn.attach( wms );
            } else {
                otn.attach();
            }

            return otn;
        } finally {
            ruleBase.readUnlock();
        }
    }
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        assertEquals( 0,
                      agendaGroup.size() );
    }

    public void testAgendaGroupLockOnActive() {
        final InternalRuleBase ruleBase = (InternalRuleBase) RuleBaseFactory.newRuleBase();

        final ReteooWorkingMemory workingMemory = (ReteooWorkingMemory) ruleBase.newStatefulSession();
        final InternalAgenda agenda = (InternalAgenda) workingMemory.getAgenda();

        // create the agendaGroup
        final InternalAgendaGroup agendaGroup = new BinaryHeapQueueAgendaGroup( "agendaGroup",
                                                                                ruleBase );
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