Package org.mule.mvel2

Examples of org.mule.mvel2.ParserContext

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        try {           
            cls = runtimeData.getRootClassLoader().loadClass( target.getClassName() );
        } catch ( ClassNotFoundException e ) {
            throw new IllegalStateException( "Unable to compile as Class could not be found '" + target.getClassName() + "'");
        }
        ParserContext context = new ParserContext(runtimeData.getParserConfiguration());
        context.addInput( "this", cls );
        context.setStrongTyping( target.isTypeSafe() ); 
       
        MVEL.COMPILER_OPT_ALLOW_NAKED_METH_CALL = true;
        MVEL.COMPILER_OPT_ALLOW_OVERRIDE_ALL_PROPHANDLING = true;
        MVEL.COMPILER_OPT_ALLOW_RESOLVE_INNERCLASSES_WITH_DOTNOTATION = true;
        MVEL.COMPILER_OPT_SUPPORT_JAVA_STYLE_CLASS_LITERALS = true;
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    public MvelConditionEvaluator(ParserConfiguration configuration, String expression, Declaration[] declarations, String conditionClass) {
        this.declarations = declarations;
        this.conditionClass = conditionClass;
        this.parserConfiguration = configuration;
        executableStatement = (ExecutableStatement)MVEL.compileExpression(expression, new ParserContext(parserConfiguration));
    }
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        readLocalsFromTuple = in.readBoolean();
    }   

    public Serializable getCompiledExpression(MVELDialectRuntimeData runtimeData ) {       
        ParserConfiguration conf = runtimeData.getParserConfiguration();
        final ParserContext parserContext = new ParserContext( conf );
        if ( MVELDebugHandler.isDebugMode() ) {
            parserContext.setDebugSymbols( true );
        }

        parserContext.setStrictTypeEnforcement( strictMode );
        parserContext.setStrongTyping( strictMode );
        parserContext.setIndexAllocation( true );

        if ( INTERCEPTORS != null ) {
            parserContext.setInterceptors(INTERCEPTORS);
        }

        parserContext.addIndexedInput( inputIdentifiers );
               
        String identifier = null;
        String type = null;
        try {
            for ( int i = 0, length = inputIdentifiers.length; i < length; i++ ) {
                identifier = inputIdentifiers[i];
                type = inputTypes[i];
                Class< ? > cls = loadClass( runtimeData.getRootClassLoader(),
                                            inputTypes[i] );
                parserContext.addInput( inputIdentifiers[i],
                                        cls );
            }
        } catch ( ClassNotFoundException e ) {
            throw new RuntimeDroolsException( "Unable to resolve class '" + type + "' for identifier '" + identifier );
        }

        parserContext.setSourceFile( name );

        String[] varNames = parserContext.getIndexedVarNames();
       
        ExecutableStatement stmt = (ExecutableStatement) compile( expression,
                                                                  runtimeData.getRootClassLoader(),
                                                                  parserContext,
                                                                  languageLevel );
       
        Set<String> localNames = parserContext.getVariables().keySet();

        parserContext.addIndexedLocals(localNames);

        String[] locals = localNames.toArray(new String[localNames.size()]);
        String[] allVars = new String[varNames.length + locals.length];

        System.arraycopy(varNames, 0, allVars, 0, varNames.length);
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                Class<?> variableType = getVariableType(variableName);
                if (variableType != null) {
                    return new VariableExpression(variableName, analyzeExpressionNode(accessorNode, node, variableType), variableType);
                } else {
                    if (node.getLiteralValue() instanceof ParserContext) {
                        ParserContext pCtx = (ParserContext)node.getLiteralValue();
                        // it's not a variable but a method invocation on this
                        Class<?> thisClass = pCtx.getInputs().get("this");
                        try {
                            return new EvaluatedExpression(new MethodInvocation(thisClass.getMethod(variableName)));
                        } catch (NoSuchMethodException e) {
                            if (node.getEgressType() == Class.class) {
                                // there's no method on this with the given name, check if it is a class literal
                                Class<?> classLiteral = pCtx.getParserConfiguration().getImport(variableName);
                                if (classLiteral != null) {
                                    return new FixedExpression(Class.class, classLiteral);
                                }
                            }
                            throw new RuntimeException(e);
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        MVELDialectRuntimeData data = (MVELDialectRuntimeData) context.getPkg().getDialectRuntimeRegistry().getDialectData( "mvel" );
        ParserConfiguration conf = data.getParserConfiguration();

        conf.setClassLoader( context.getPackageBuilder().getRootClassLoader() );

        final ParserContext pctx = new ParserContext( conf );
        pctx.setStrictTypeEnforcement(false);
        pctx.setStrongTyping( false );
        pctx.addInput( "this",
                       thisClass );
        pctx.addInput( "empty",
                       boolean.class ); // overrides the mvel empty label
        MVEL.COMPILER_OPT_ALLOW_NAKED_METH_CALL = true;
        MVEL.COMPILER_OPT_ALLOW_OVERRIDE_ALL_PROPHANDLING = true;
        MVEL.COMPILER_OPT_ALLOW_RESOLVE_INNERCLASSES_WITH_DOTNOTATION = true;
        MVEL.COMPILER_OPT_SUPPORT_JAVA_STYLE_CLASS_LITERALS = true;

        try {
            MVEL.analysisCompile( expr, pctx );
        } catch (Exception e) {
            // There is a problem in setting the inputs for this expression, but it will be
            // reported during expression analysis, so swallow it at the moment
            return;
        }

        if ( !pctx.getInputs().isEmpty() ) {
            for ( String v : pctx.getInputs().keySet() ) {
                // in the following if, we need to check that the expr actually contains a reference
                // to an "empty" property, or the if will evaluate to true even if it doesn't
                if ( "this".equals( v ) || (PropertyTools.getFieldOrAccessor( thisClass,
                                                                               v ) != null && expr.matches( "(^|.*\\W)empty($|\\W.*)" )) ) {
                    descrBranch.getFieldAccessors().add( v );
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            MVEL.COMPILER_OPT_ALLOW_RESOLVE_INNERCLASSES_WITH_DOTNOTATION = true;
            MVEL.COMPILER_OPT_SUPPORT_JAVA_STYLE_CLASS_LITERALS = true;

            MVELDialectRuntimeData data = (MVELDialectRuntimeData) context.getPkg().getDialectRuntimeRegistry().getDialectData( "mvel" );
            ParserConfiguration pconf = data.getParserConfiguration();
            ParserContext pctx = new ParserContext( pconf );

            Object o = MVEL.executeExpression( MVEL.compileExpression( value,
                                                                       pctx ) );
            if ( o != null && vtype == null ) {
                // was a compilation problem else where, so guess valuetype so we can continue
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        ClassLoader originalClassLoader = Thread.currentThread().getContextClassLoader();
        Thread.currentThread().setContextClassLoader( context.getClassLoader() );

        if ( expr == null ) {
            // create MVEL compilation
            final ParserContext parserContext = new ParserContext();
            parserContext.setStrictTypeEnforcement( false );

            ExpressionCompiler compiler = new ExpressionCompiler( this.text );
            this.expr = compiler.compile( parserContext );
        }
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    Action,
    Receiver {
    private Serializable expr;

    public MvelAction(String text) {
        final ParserContext parserContext = new ParserContext();
        parserContext.setStrictTypeEnforcement( false );

        ExpressionCompiler compiler = new ExpressionCompiler( text );
        this.expr = compiler.compile( );
    }
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    Expression,
    Receiver {
    private Serializable expr;

    public MvelExpression(String text) {
        final ParserContext parserContext = new ParserContext();
        parserContext.setStrictTypeEnforcement( false );

        ExpressionCompiler compiler = new ExpressionCompiler( text );
        this.expr = compiler.compile( parserContext );
    }
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                Class<?> variableType = getVariableType(variableName);
                if (variableType != null) {
                    return new VariableExpression(variableName, analyzeExpressionNode(accessorNode), variableType);
                } else {
                    if (node.getLiteralValue() instanceof ParserContext) {
                        ParserContext pCtx = (ParserContext)node.getLiteralValue();
                        // it's not a variable but a method invocation on this
                        Class<?> thisClass = pCtx.getInputs().get("this");
                        try {
                            return new EvaluatedExpression(new MethodInvocation(thisClass.getMethod(variableName)));
                        } catch (NoSuchMethodException e) {
                            if (node.getEgressType() == Class.class) {
                                // there's no method on this with the given name, check if it is a class literal
                                Class<?> classLiteral = pCtx.getParserConfiguration().getImport(variableName);
                                if (classLiteral != null) {
                                    return new FixedExpression(Class.class, classLiteral);
                                }
                            }
                            throw new RuntimeException(e);
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