Examples with ParserConfiguration org.mvel2.ParserConfiguration used on opensource projects

Example 6 with ParserConfiguration

use of org.mvel2.ParserConfiguration in project jbpm by kiegroup.

the class MVELLifeCycleManager method eval.

public static Object eval(String str, Map<String, Object> vars) {
    ParserConfiguration pconf = new ParserConfiguration();
    pconf.addPackageImport("org.kie.internal.task.api.model");
    pconf.addPackageImport("org.jbpm.services.task");
    pconf.addPackageImport("org.jbpm.services.task.impl.model");
    pconf.addPackageImport("org.jbpm.services.task.query");
    pconf.addPackageImport("org.jbpm.services.task.internals.lifecycle");
    pconf.addImport(Status.class);
    pconf.addImport(Allowed.class);
    pconf.addPackageImport("java.util");
    ParserContext context = new ParserContext(pconf);
    Serializable s = MVEL.compileExpression(str.trim(), context);
    if (vars != null) {
        return MVELSafeHelper.getEvaluator().executeExpression(s, vars);
    } else {
        return MVELSafeHelper.getEvaluator().executeExpression(s);
    }
}

Example 7 with ParserConfiguration

use of org.mvel2.ParserConfiguration in project jbpm by kiegroup.

the class MVELDataTransformer method compile.

@Override
public Object compile(String expression, Map<String, Object> parameters) {
    logger.debug("About to compile mvel expression {}", expression);
    ClassLoader classLoader = (ClassLoader) parameters.get("classloader");
    if (classLoader == null) {
        classLoader = this.getClass().getClassLoader();
    }
    ParserConfiguration config = new ParserConfiguration();
    config.setClassLoader(classLoader);
    ParserContext context = new ParserContext(config);
    if (parameters != null) {
        @SuppressWarnings("unchecked") Set<String> imports = (Set<String>) parameters.get("imports");
        if (imports != null) {
            for (String clazz : imports) {
                try {
                    Class<?> cl = Class.forName(clazz, true, classLoader);
                    context.addImport(cl.getSimpleName(), cl);
                } catch (ClassNotFoundException e) {
                    logger.warn("Unable to load class {} due to {}", clazz, e.getException());
                }
                ;
            }
        }
    }
    return MVEL.compileExpression(expression, context);
}

Example 8 with ParserConfiguration

use of org.mvel2.ParserConfiguration in project mule by mulesoft.

the class AbstractVarExpressionDataTypeResolverTestCase method doVarDataTypeTest.

protected void doVarDataTypeTest(String expression) throws Exception {
    DataType expectedDataType = DataType.builder().type(String.class).mediaType(JSON).charset(CUSTOM_ENCODING).build();
    PrivilegedEvent event = setVariable((PrivilegedEvent) testEvent(), EXPRESSION_VALUE, expectedDataType);
    final ParserConfiguration parserConfiguration = MVELExpressionLanguage.createParserConfiguration(Collections.EMPTY_MAP);
    final MVELExpressionLanguageContext context = createMvelExpressionLanguageContext(event, parserConfiguration);
    CompiledExpression compiledExpression = (CompiledExpression) compileExpression(expression, new ParserContext(parserConfiguration));
    // Expression must be executed, otherwise the variable accessor is not properly configured
    MVEL.executeExpression(compiledExpression, context);
    assertThat(expressionDataTypeResolver.resolve(event, compiledExpression), like(String.class, JSON, CUSTOM_ENCODING));
}

Example 9 with ParserConfiguration

use of org.mvel2.ParserConfiguration in project mule by mulesoft.

the class MVELExpressionLanguage method createParserConfiguration.

public static ParserConfiguration createParserConfiguration(Map<String, Class<?>> imports) {
    ParserConfiguration ParserConfiguration = new ParserConfiguration();
    configureParserConfiguration(ParserConfiguration, imports);
    return ParserConfiguration;
}

Example 10 with ParserConfiguration

use of org.mvel2.ParserConfiguration in project mule by mulesoft.

the class DateTimeExpressionLanguageFunctionTestCase method setup.

@Before
public void setup() throws InitialisationException {
    ParserConfiguration parserConfiguration = new ParserConfiguration();
    expressionExecutor = new MVELExpressionExecutor(parserConfiguration);
    context = new MVELExpressionLanguageContext(parserConfiguration, Mockito.mock(MuleContext.class));
    dateTimeFunction = new DateTimeExpressionLanguageFuntion();
    context.declareFunction("dateTime", dateTimeFunction);
}