Package org.mvel2.compiler

Examples of org.mvel2.compiler.ExpressionCompiler

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        }
    }

    public Object eval(String str,
                       Map vars) {
        ExpressionCompiler compiler = new ExpressionCompiler(str.trim());

        ParserContext context = new ParserContext();
        context.addPackageImport("org.drools.task");
        context.addPackageImport("org.drools.task.service");
        context.addPackageImport("org.drools.task.query");
        context.addPackageImport("java.util");

        return MVEL.executeExpression(compiler.compile(context),
                vars);
    }
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        Map<String, Object> doc = null;
        if ( taskData != null ) {
            Content content = em.find( Content.class,
                                       taskData.getDocumentContentId() );
            if ( content != null ) {
                ExpressionCompiler compiler = new ExpressionCompiler( new String( content.getContent() ) );
                doc = (Map<String, Object>) MVEL.executeExpression( compiler.compile() );
            } else {
                doc = Collections.emptyMap();
            }
        }
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        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 );
        }

        XLSReadStatus readStatus = null;
        Map<String, Object> beans = null;
        try {
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    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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    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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                                                             dialect );
        MvelContext mCon = new MvelContext();
        mCon.setInitialContext( initialContext );

        try {
            ExpressionCompiler compiler = new ExpressionCompiler( macroMvel );
            CompiledExpression expression = compiler.compile( initialContext );
            mCon.setExpression( expression );

            ParserContext compilationContext = compiler.getParserContextState();

            Class lastType = expression.getKnownEgressType();

            //Statics expression may return Class as an egress type
            if ( lastType != null && "java.lang.Class".equals( lastType.getName() ) ) {
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    public Serializable compile(final String text,
                                final ClassLoader classLoader,
                                final ParserContext parserContext,
                                final int languageLevel) {
        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;
        }
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        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();
                                   
            InternalReadAccessor extr = cache.getReadAccessor( new AccessorKey( cls.getName(), basefield, AccessorKey.AccessorType.FieldAccessor), cls );
            this.extractors.put( basefield, extr );
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        final ParserContext parserContext = getParserContext( analysis,
                                                              outerDeclarations,
                                                              otherInputVariables,
                                                              context );

        ExpressionCompiler compiler = new ExpressionCompiler( text.trim() );

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

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

            Thread.currentThread().setContextClassLoader( pkgBuilder.getRootClassLoader() );

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

            Thread.currentThread().setContextClassLoader( tempClassLoader );

            return expr;
        }
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    @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 );
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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
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