Package org.mvel2

Examples of org.mvel2.ParserContext

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      pconf.addPackageImport("org.jbpm.task.query");
      pconf.addPackageImport("java.util");
      for(String entry : getInputs().keySet()){
        pconf.addImport(entry, getInputs().get(entry));
        }
      ParserContext context = new ParserContext(pconf);
        Serializable s = MVEL.compileExpression(str.trim(), context);
        return MVEL.executeExpression(s, vars);
    }
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                                "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,
                                            "Action node '" + node.getName() + "' [" + node.getId() + "] has invalid action: " + error.getMessage() + "."));
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  }

  public Object eval(String str, Map<String, Object> 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");

    vars.put("now", new Date());
    return MVEL.executeExpression(compiler.compile(context), vars);
  }
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    }

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

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

        vars.put("now", new Date());
        return MVEL.executeExpression(compiler.compile(context), vars);
    }
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    }

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

        ParserContext context = new ParserContext();
        context.addPackageImport( "org.jbpm.task" );
        context.addPackageImport( "java.util" );
       
        context.addImport( "AccessType", AccessType.class );
        context.addImport( "AllowedToDelegate", AllowedToDelegate.class );
        context.addImport( "Attachment", Attachment.class );
        context.addImport( "BooleanExpression", BooleanExpression.class );
        context.addImport( "Comment", Comment.class );
        context.addImport( "Deadline", Deadline.class );
        context.addImport( "Deadlines", Deadlines.class );
        context.addImport( "Delegation", Delegation.class );
        context.addImport( "Escalation", Escalation.class );
        context.addImport( "Group", Group.class );
        context.addImport( "I18NText", I18NText.class );
        context.addImport( "Notification", Notification.class );
        context.addImport( "OrganizationalEntity", OrganizationalEntity.class );
        context.addImport( "PeopleAssignments", PeopleAssignments.class );
        context.addImport( "Reassignment", Reassignment.class );
        context.addImport( "Status", Status.class );
        context.addImport( "Task", Task.class );
        context.addImport( "TaskData", TaskData.class );
        context.addImport( "TaskSummary", TaskSummary.class );
        context.addImport( "User", User.class );

        return MVEL.executeExpression( compiler.compile( context ), vars );
    }
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    @SuppressWarnings("unchecked")
  public static Object eval(String str, Map vars) {
        ExpressionCompiler compiler = new ExpressionCompiler( str.trim() );

        ParserContext context = new ParserContext();
        context.addPackageImport( "org.drools.task" );
        context.addPackageImport( "java.util" );
       
        context.addImport( "AccessType", AccessType.class );
        context.addImport( "AllowedToDelegate", AllowedToDelegate.class );
        context.addImport( "Attachment", Attachment.class );
        context.addImport( "BooleanExpression", BooleanExpression.class );
        context.addImport( "Comment", Comment.class );
        context.addImport( "Deadline", Deadline.class );
        context.addImport( "Deadlines", Deadlines.class );
        context.addImport( "Delegation", Delegation.class );
        context.addImport( "Escalation", Escalation.class );
        context.addImport( "Group", Group.class );
        context.addImport( "I18NText", I18NText.class );
        context.addImport( "Notification", Notification.class );
        context.addImport( "OrganizationalEntity", OrganizationalEntity.class );
        context.addImport( "PeopleAssignments", PeopleAssignments.class );
        context.addImport( "Reassignment", Reassignment.class );
        context.addImport( "Status", Status.class );
        context.addImport( "Task", Task.class );
        context.addImport( "TaskData", TaskData.class );
        context.addImport( "TaskSummary", TaskSummary.class );
        context.addImport( "User", User.class );

        return MVEL.executeExpression( compiler.compile( context ), vars );
    }
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    @SuppressWarnings({ "deprecation", "rawtypes" })
  public static Object eval(String str, Map vars) {
        ExpressionCompiler compiler = new ExpressionCompiler( str.trim() );

        ParserContext context = new ParserContext();
        context.addPackageImport( "org.jbpm.task" );
        context.addPackageImport( "java.util" );
       
        context.addImport( "AccessType", AccessType.class );
        context.addImport( "AllowedToDelegate", AllowedToDelegate.class );
        context.addImport( "Attachment", Attachment.class );
        context.addImport( "BooleanExpression", BooleanExpression.class );
        context.addImport( "Comment", Comment.class );
        context.addImport( "Deadline", Deadline.class );
        context.addImport( "Deadlines", Deadlines.class );
        context.addImport( "Delegation", Delegation.class );
        context.addImport( "Escalation", Escalation.class );
        context.addImport( "Group", Group.class );
        context.addImport( "I18NText", I18NText.class );
        context.addImport( "Notification", Notification.class );
        context.addImport( "OrganizationalEntity", OrganizationalEntity.class );
        context.addImport( "PeopleAssignments", PeopleAssignments.class );
        context.addImport( "Reassignment", Reassignment.class );
        context.addImport( "Status", Status.class );
        context.addImport( "Task", Task.class );
        context.addImport( "TaskData", TaskData.class );
        context.addImport( "TaskSummary", TaskSummary.class );
        context.addImport( "User", User.class );

        return MVEL.executeExpression( compiler.compile( context ), vars );
    }
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    }

    String targetRunMvel = mvel + ";\n for(i = 0; i < " + RUNS + "; i++) {\n "
        + mvelCallable + "\n}\n";

    ParserContext parserContext = new ParserContext();
    parserContext.addIndexedInput(new String[0]);

    VariableResolverFactory factory =
        VariableSpaceCompiler.compile(targetRunMvel, parserContext).createFactory(new Object[0]);
    compiledMvel = MVEL.compileExpression(targetRunMvel, parserContext);
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        strictMode = 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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        MVELDialectRuntimeData data = (MVELDialectRuntimeData) context.getPkg().getDialectRuntimeRegistry().getDialectData( "mvel" );
        ParserConfiguration conf = data.getParserConfiguration();

        conf.setClassLoader( context.getKnowledgeBuilder().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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Related Classes of org.mvel2.ParserContext

  • com.google.sitebricks.compiler.MvelEvaluatorCompiler
  • com.google.sitebricks.rendering.MvelGenericsConfidenceTest
  • org.broadleafcommerce.core.offer.service.MVELTest
  • org.drools.base.ClassFieldAccessorFactory
  • org.drools.base.extractors.MVELClassFieldReader
  • org.drools.base.ModifyInterceptor
  • org.drools.base.mvel.DroolsMVELFactory
  • org.drools.base.mvel.MVELAccumulator
  • org.drools.base.mvel.MVELCompilationUnit
  • org.drools.base.mvel.MVELConsequence
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