Java Code Examples for org.mvel2.integration.VariableResolverFactory#setNextFactory()

The following examples show how to use org.mvel2.integration.VariableResolverFactory#setNextFactory() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: MVELSalienceExpression.java    From kogito-runtimes with Apache License 2.0 6 votes vote down vote up 
public int getValue(final KnowledgeHelper khelper,
                    final Rule rule,
                    final WorkingMemory workingMemory) {
    VariableResolverFactory factory = unit.getFactory( khelper, 
                                                       khelper != null ? ((AgendaItem)khelper.getMatch()).getTerminalNode().getSalienceDeclarations() : null, 
                                                       rule, null, 
                                                       khelper != null ? (LeftTuple) khelper.getMatch().getTuple() : null, 
                                                       null, (InternalWorkingMemory) workingMemory, workingMemory.getGlobalResolver() );
    
    // do we have any functions for this namespace?
    InternalKnowledgePackage pkg = workingMemory.getKnowledgeBase().getPackage( "MAIN" );
    if ( pkg != null ) {
        MVELDialectRuntimeData data = (MVELDialectRuntimeData) pkg.getDialectRuntimeRegistry().getDialectData( this.id );
        factory.setNextFactory( data.getFunctionFactory() );
    }

    Object value = MVEL.executeExpression( this.expr, factory );
    if (value instanceof String) {
        value = TimeUtils.parseTimeString( (String)value );
    }
    return ((Number)value).intValue();
}
Example 2
Source File: MVELEvalExpression.java    From kogito-runtimes with Apache License 2.0 6 votes vote down vote up 
public boolean evaluate(final Tuple tuple,
                        final Declaration[] requiredDeclarations,
                        final WorkingMemory workingMemory,
                        final Object context) throws Exception {
    VariableResolverFactory factory = ( VariableResolverFactory ) context;
    
    unit.updateFactory( null,
                        (LeftTuple) tuple,
                        null,
                        (InternalWorkingMemory) workingMemory,
                        workingMemory.getGlobalResolver(),
                        factory );

    // do we have any functions for this namespace?
    InternalKnowledgePackage pkg = workingMemory.getKnowledgeBase().getPackage( "MAIN" );
    if ( pkg != null ) {
        MVELDialectRuntimeData data = (MVELDialectRuntimeData) pkg.getDialectRuntimeRegistry().getDialectData( this.id );
        factory.setNextFactory( data.getFunctionFactory() );
    }

    final Boolean result = (Boolean) MVEL.executeExpression( this.expr,
                                                             null,
                                                             factory );
    return result.booleanValue();
}
Example 3
Source File: MVELEnabledExpression.java    From kogito-runtimes with Apache License 2.0 6 votes vote down vote up 
public boolean getValue(final Tuple tuple,
                        final Declaration[] declrs,
                        final RuleImpl rule,
                        final WorkingMemory workingMemory) {
    VariableResolverFactory factory = unit.getFactory( null, declrs,
                                                       rule, null, (LeftTuple) tuple, null, (InternalWorkingMemory) workingMemory, workingMemory.getGlobalResolver()  );

    // do we have any functions for this namespace?
    InternalKnowledgePackage pkg = workingMemory.getKnowledgeBase().getPackage( "MAIN" );
    if ( pkg != null ) {
        MVELDialectRuntimeData data = (MVELDialectRuntimeData) pkg.getDialectRuntimeRegistry().getDialectData( this.id );
        factory.setNextFactory( data.getFunctionFactory() );
    }

    return ((Boolean) MVEL.executeExpression( this.expr,
                                              null,
                                              factory )).booleanValue();
}
Example 4
Source File: MVELObjectExpression.java    From kogito-runtimes with Apache License 2.0 6 votes vote down vote up 
public Object getValue(final Tuple leftTuple,
                       final Declaration[] declrs,
                       final InternalWorkingMemory wm) {
    VariableResolverFactory factory = unit.getFactory( null, declrs,
                                                       null, null, leftTuple, null, wm, wm.getGlobalResolver() );
    
    // do we have any functions for this namespace?
    InternalKnowledgePackage pkg = wm.getKnowledgeBase().getPackage( "MAIN" );
    if ( pkg != null ) {
        MVELDialectRuntimeData data = (MVELDialectRuntimeData) pkg.getDialectRuntimeRegistry().getDialectData( this.id );
        factory.setNextFactory( data.getFunctionFactory() );
    }

    return MVELSafeHelper.getEvaluator().executeExpression(this.expr,
                                  factory);
}
Example 5
Source File: MVELAccumulator.java    From kogito-runtimes with Apache License 2.0 5 votes vote down vote up 
public void init(Object workingMemoryContext,
                 Object context,
                 Tuple tuple,
                 Declaration[] declarations,
                 WorkingMemory workingMemory) throws Exception {
    Object[] localVars = new Object[initUnit.getOtherIdentifiers().length];
    
    MVELAccumulatorFactoryContext factoryContext = (MVELAccumulatorFactoryContext)workingMemoryContext;
    VariableResolverFactory factory = factoryContext.getInitFactory();
    initUnit.updateFactory( null, tuple, localVars, (InternalWorkingMemory) workingMemory, workingMemory.getGlobalResolver(), factory );

    InternalKnowledgePackage pkg = workingMemory.getKnowledgeBase().getPackage( "MAIN" );
    if ( pkg != null ) {
        MVELDialectRuntimeData data = (MVELDialectRuntimeData) pkg.getDialectRuntimeRegistry().getDialectData( "mvel" );
        factory.setNextFactory( data.getFunctionFactory() );
    }

    MVELSafeHelper.getEvaluator().executeExpression( this.init,
                            null,
                            factory );
    
    
    DroolsVarFactory df = ( DroolsVarFactory ) factory.getNextFactory();
    if ( localVars.length > 0 ) {
        for ( int i = 0; i < df.getOtherVarsLength(); i++ ) {
            localVars[i] = factory.getIndexedVariableResolver( df.getOtherVarsPos() + i ).getValue();
        }
    }
    
    ((MVELAccumulatorContext) context).setVariables( localVars );
}
Example 6
Source File: MVELConsequence.java    From kogito-runtimes with Apache License 2.0 5 votes vote down vote up 
public void evaluate(final KnowledgeHelper knowledgeHelper,
                     final WorkingMemory workingMemory) throws Exception {
    
    VariableResolverFactory factory = unit.getFactory( knowledgeHelper,  ((AgendaItem)knowledgeHelper.getMatch()).getTerminalNode().getRequiredDeclarations(),
                                                       knowledgeHelper.getRule(), knowledgeHelper.getTuple(), null, (InternalWorkingMemory) workingMemory, workingMemory.getGlobalResolver()  );
    
    // do we have any functions for this namespace?
    InternalKnowledgePackage pkg = workingMemory.getKnowledgeBase().getPackage( "MAIN" );
    if ( pkg != null ) {
        MVELDialectRuntimeData data = (MVELDialectRuntimeData) pkg.getDialectRuntimeRegistry().getDialectData( this.id );
        factory.setNextFactory( data.getFunctionFactory() );
    }

    CompiledExpression compexpr = (CompiledExpression) this.expr;

    if ( MVELDebugHandler.isDebugMode() ) {
        if ( MVELDebugHandler.verbose ) {
            logger.info(DebugTools.decompile(compexpr));
        }
        MVEL.executeDebugger( compexpr,
                              knowledgeHelper,
                              factory );
    } else {
        MVEL.executeExpression( compexpr,
                                knowledgeHelper,
                                factory );
    }
}
Example 7
Source File: MVELCompilationUnit.java    From kogito-runtimes with Apache License 2.0 5 votes vote down vote up 
public VariableResolverFactory createFactory() {
    Object[] vals = new Object[inputIdentifiers.length];

    VariableResolverFactory factory = varModel.createFactory( vals );
    factory.setNextFactory( new DroolsVarFactory() );
    return factory;
}
Example 8
Source File: MVELReturnValueExpression.java    From kogito-runtimes with Apache License 2.0 5 votes vote down vote up 
public FieldValue evaluate(final InternalFactHandle handle,
                           final Tuple tuple,
                           final Declaration[] previousDeclarations,
                           final Declaration[] requiredDeclarations,
                           final WorkingMemory workingMemory,
                           final Object ctx) throws Exception {
    VariableResolverFactory factory = ( VariableResolverFactory )ctx;
    
    unit.updateFactory( handle,
                        tuple,
                        null,
                        (InternalWorkingMemory) workingMemory,
                        workingMemory.getGlobalResolver(),
                        factory );

    
    // do we have any functions for this namespace?
    InternalKnowledgePackage pkg = workingMemory.getKnowledgeBase().getPackage( "MAIN" );
    if ( pkg != null ) {
        MVELDialectRuntimeData data = (MVELDialectRuntimeData) pkg.getDialectRuntimeRegistry().getDialectData( this.id );
        factory.setNextFactory( data.getFunctionFactory() );
    }


    return workingMemory.getKnowledgeBase().getConfiguration().getComponentFactory().getFieldFactory().getFieldValue( MVELSafeHelper.getEvaluator().executeExpression( this.expr,
                                                                                           handle,
                                                                                           factory ) );
}
Example 9
Source File: MVELReturnValueEvaluator.java    From kogito-runtimes with Apache License 2.0 5 votes vote down vote up 
public Object evaluate(ProcessContext context) throws Exception {
    int length = unit.getOtherIdentifiers().length;
    Object[] vars = new Object[ length ];
    if (unit.getOtherIdentifiers() != null) {
        for (int i = 0; i < length; i++ ) {
            vars[i] = context.getVariable( unit.getOtherIdentifiers()[i] );
        }
    }

    InternalWorkingMemory internalWorkingMemory = (InternalWorkingMemory) context.getKieRuntime();
    
    VariableResolverFactory factory 
        = unit.getFactory( context, 
                           null, // No previous declarations
                           null, // No rule
                           null, // No "right object" 
                           null, // No (left) tuples
                           vars, 
                           internalWorkingMemory,
                           (GlobalResolver) context.getKieRuntime().getGlobals() );

    // do we have any functions for this namespace?
    KiePackage pkg = context.getKieRuntime().getKieBase().getKiePackage("MAIN");
    if ( pkg instanceof KnowledgePackageImpl) {
        MVELDialectRuntimeData data = ( MVELDialectRuntimeData ) ((KnowledgePackageImpl) pkg).getDialectRuntimeRegistry().getDialectData( id );
        factory.setNextFactory( data.getFunctionFactory() );
    }

    Object value = MVELSafeHelper.getEvaluator().executeExpression( this.expr,
                                        null,
                                        factory );

    if ( !(value instanceof Boolean) ) {
        throw new RuntimeException( "Constraints must return boolean values: " + 
    		unit.getExpression() + " returns " + value + 
    		(value == null? "" : " (type=" + value.getClass()));
    }
    return ((Boolean) value).booleanValue();

}