Examples of org.mvel2.compiler.ExpressionCompiler

org.mvel2.compiler.ExpressionCompiler
This is the main MVEL compiler.

                                final ClassLoader classLoader,
                                final ParserContext parserContext,
                                final int languageLevel) {
      MVEL.COMPILER_OPT_ALLOW_NAKED_METH_CALL = true;
      
        ExpressionCompiler compiler = new ExpressionCompiler( text.trim() );


        if ( MVELDebugHandler.isDebugMode() ) {
            parserContext.setDebugSymbols( true );
        }


        synchronized ( COMPILER_LOCK ) {
            ClassLoader tempClassLoader = Thread.currentThread().getContextClassLoader();


            Thread.currentThread().setContextClassLoader( classLoader );


            AbstractParser.setLanguageLevel( languageLevel );
            Serializable expr = compiler.compile( parserContext );


            Thread.currentThread().setContextClassLoader( tempClassLoader );


            return expr;
        }

View Full Code Here

                        if (actionString == null) {
                            errors.add(new ProcessValidationErrorImpl(process,
                                "Action node '" + node.getName() + "' [" + node.getId() + "] has empty action."));
                        } else if( "mvel".equals( droolsAction.getDialect() ) ) {
                            try {
                                ExpressionCompiler compiler = new ExpressionCompiler(actionString);
                                compiler.setVerifying(true);
                                ParserContext parserContext = new ParserContext();
                                //parserContext.setStrictTypeEnforcement(true);
                                compiler.compile(parserContext);
                                List<ErrorDetail> mvelErrors = parserContext.getErrorList();
                                if (mvelErrors != null) {
                                    for (Iterator<ErrorDetail> iterator = mvelErrors.iterator(); iterator.hasNext(); ) {
                                        ErrorDetail error = iterator.next();
                                        errors.add(new ProcessValidationErrorImpl(process,

View Full Code Here


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


        ExpressionCompiler compiler = new ExpressionCompiler( text );
        this.expr = compiler.compile( parserContext );
    }

View Full Code Here

        super( -1, // index
               Object.class, // fieldType
               ValueType.determineValueType( Object.class ) ); // value type
        this.extractors = new HashMap();


        ExpressionCompiler compiler = new ExpressionCompiler( fieldName );
        this.mvelExpression = compiler.compile();


        Set inputs = compiler.getParserContextState().getInputs().keySet();
        for ( Iterator it = inputs.iterator(); it.hasNext(); ) {
            String basefield = (String) it.next();
            if ( "this".equals( basefield ) ) {
                continue;
            }

View Full Code Here

        }


        ClassLoader tempClassLoader = Thread.currentThread().getContextClassLoader();
        Thread.currentThread().setContextClassLoader( ((InternalRuleBase)ruleBase).getRootClassLoader() );
        
        ExpressionCompiler expr = new ExpressionCompiler( appendable.toString() );
        Serializable executable = expr.compile( context );


        MVEL.executeExpression( executable,
                                this,
                                this.factory );
        Thread.currentThread().setContextClassLoader( tempClassLoader );

View Full Code Here

                object.getClass());
    }


    protected Boolean isSuccess(VerifyField currentField) {
        String s = "__fact__." + currentField.getFieldName() + " " + currentField.getOperator() + " __expected__";
        CompiledExpression expression = new ExpressionCompiler(s).compile(parserContext);


        return (Boolean) MVELSafeHelper.getEvaluator().executeExpression(expression,
                variables);
    }

View Full Code Here

        return (Boolean) MVELSafeHelper.getEvaluator().executeExpression(expression,
                variables);
    }


    protected String getActual(VerifyField currentField) {
        Object actualValue = MVELSafeHelper.getEvaluator().executeExpression(new ExpressionCompiler("__fact__." + currentField.getFieldName()).compile(parserContext),
                variables);


        return (actualValue != null) ? actualValue.toString() : "";


    }

View Full Code Here


    @Test
    public void testDebugSymbolCount() {
        String expr = "System.out.println( \"a1\" );\n" + "System.out.println( \"a2\" );\n" + "System.out.println( \"a3\" );\n" + "System.out.println( \"a4\" );\n";


        ExpressionCompiler compiler = new ExpressionCompiler( expr );


        ParserContext context = new ParserContext();
        context.setDebugSymbols( true );
        context.addImport( "System",
                           System.class );
        context.setStrictTypeEnforcement( true );
        //context.setDebugSymbols( true );
        context.setSourceFile( "mysource" );




        Serializable compiledExpression = compiler.compile( context );


        String s = DebugTools.decompile( compiledExpression );


        System.out.println( "s " + s );

View Full Code Here

     */
    private Class getFieldReturnType(final Pattern pattern,
                                     final FieldConstraintDescr fieldConstraintDescr) {
        String dummyField = "__DUMMY__";
        String dummyExpr = dummyField + "." + fieldConstraintDescr.getFieldName();
        ExpressionCompiler compiler = new ExpressionCompiler( dummyExpr );
        ParserContext mvelcontext = new ParserContext();
        mvelcontext.addInput( dummyField,
                              ((ClassObjectType) pattern.getObjectType()).getClassType() );
        compiler.compile( mvelcontext );
        Class resultType = compiler.getReturnType();
        return resultType;
    }

View Full Code Here

        Content content = null;
        if ( taskData.getDocumentAccessType() == AccessType.Inline ) {
            content = em.find( Content.class,
                               taskData.getDocumentContentId() );
        }
        ExpressionCompiler compiler = new ExpressionCompiler( new String( content.getContent() ) );
        Serializable expr = compiler.compile();
        Object object = MVEL.executeExpression( expr );
        
        Map<String, Object> vars = new HashMap<String, Object>();
        vars.put( docVar, object );
        // for now will have to assume the recipient is a User, we need to figure out if Groups have an alias

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

Related Classes of org.mvel2.compiler.ExpressionCompiler

com.google.sitebricks.compiler.MvelEvaluatorCompiler

com.google.sitebricks.rendering.MvelGenericsConfidenceTest

org.drools.adventures.GameEngine

org.drools.base.ClassFieldAccessorFactory

org.drools.base.extractors.MVELClassFieldReader

org.drools.base.extractors.MVELObjectClassFieldReader

org.drools.base.ModifyInterceptor

org.drools.base.mvel.DroolsMVELFactory

org.drools.base.mvel.DroolsProcessMVELFactory

org.drools.base.mvel.MVELAccumulator

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.