Examples with DataWeaveExpressionLanguageAdaptor org.mule.runtime.core.internal.el.dataweave.DataWeaveExpressionLanguageAdaptor used on opensource projects

Example 1 with DataWeaveExpressionLanguageAdaptor

use of org.mule.runtime.core.internal.el.dataweave.DataWeaveExpressionLanguageAdaptor in project mule by mulesoft.

the class IdempotentMessageValidatorTestCase method testIdCheckWithHash.

@Test
public void testIdCheckWithHash() throws Exception {
    String dwHashExpression = "%dw 2.0\n" + "output text/plain\n" + "import dw::Crypto\n" + "---\n" + "Crypto::hashWith(payload,'SHA-256')";
    String payload = "payload to be hashed";
    final BaseEventContext context = mock(BaseEventContext.class);
    when(context.getCorrelationId()).thenReturn("1");
    Message message = of(payload);
    CoreEvent event = CoreEvent.builder(context).message(message).build();
    // Set DW expression to hash value
    idempotent.setIdExpression(dwHashExpression);
    // Evaluate DW expression outside MessageValidator
    ExpressionLanguageAdaptor expressionLanguageAdaptor = new DataWeaveExpressionLanguageAdaptor(muleContext, mock(Registry.class), new WeaveDefaultExpressionLanguageFactoryService());
    TypedValue hashedValue = expressionLanguageAdaptor.evaluate(dwHashExpression, event, NULL_BINDING_CONTEXT);
    // This one will process the event on the target endpoint
    CoreEvent processedEvent = idempotent.process(event);
    assertNotNull(processedEvent);
    assertEquals(idempotent.getObjectStore().retrieve(IOUtils.toString((ByteArrayBasedCursorStreamProvider) hashedValue.getValue())), "1");
    // This will not process, because the message is a duplicate
    message = of(payload);
    event = CoreEvent.builder(context).message(message).build();
    expected.expect(ValidationException.class);
    processedEvent = idempotent.process(event);
}

Example 2 with DataWeaveExpressionLanguageAdaptor

use of org.mule.runtime.core.internal.el.dataweave.DataWeaveExpressionLanguageAdaptor in project mule by mulesoft.

the class IdempotentMessageValidatorTestCase method differentIdsShouldBeStored.

@Test
public void differentIdsShouldBeStored() throws Exception {
    String dwHashExpression = "%dw 2.0\n" + "output text/plain\n" + "import dw::Crypto\n" + "---\n" + "Crypto::SHA1(payload)";
    String payload = "payload to be hashed";
    String otherPayload = "this is another payload to be hashed";
    final BaseEventContext context = mock(BaseEventContext.class);
    when(context.getCorrelationId()).thenReturn("1");
    Message message = of(payload);
    CoreEvent event = CoreEvent.builder(context).message(message).build();
    // Set DW expression to hash value
    idempotent.setIdExpression(dwHashExpression);
    // Evaluate DW expression outside MessageValidator
    ExpressionLanguageAdaptor expressionLanguageAdaptor = new DataWeaveExpressionLanguageAdaptor(muleContext, mock(Registry.class), new WeaveDefaultExpressionLanguageFactoryService());
    TypedValue hashedValue = expressionLanguageAdaptor.evaluate(dwHashExpression, event, NULL_BINDING_CONTEXT);
    // This one will process the event on the target endpoint
    CoreEvent processedEvent = idempotent.process(event);
    assertNotNull(processedEvent);
    assertEquals(idempotent.getObjectStore().retrieve(IOUtils.toString((ByteArrayBasedCursorStreamProvider) hashedValue.getValue())), "1");
    // This will process, because the message is a new one
    Message otherMessage = of(otherPayload);
    event = CoreEvent.builder(context).message(otherMessage).build();
    processedEvent = idempotent.process(event);
    assertNotNull(processedEvent);
}

Example 3 with DataWeaveExpressionLanguageAdaptor

use of org.mule.runtime.core.internal.el.dataweave.DataWeaveExpressionLanguageAdaptor in project mule by mulesoft.

the class DefaultExpressionManager method initialise.

@Override
public void initialise() throws InitialisationException {
    if (!initialized.getAndSet(true)) {
        final DataWeaveExpressionLanguageAdaptor dwExpressionLanguage = DataWeaveExpressionLanguageAdaptor.create(muleContext, registry);
        MVELExpressionLanguage mvelExpressionLanguage = null;
        if (registry.lookupByName(COMPATIBILITY_PLUGIN_INSTALLED).isPresent()) {
            mvelExpressionLanguage = registry.<MVELExpressionLanguage>lookupByName(OBJECT_EXPRESSION_LANGUAGE).get();
        }
        this.expressionLanguage = new ExpressionLanguageAdaptorHandler(dwExpressionLanguage, mvelExpressionLanguage);
        this.melDefault = expressionLanguage.isMelDefault();
        Collection<GlobalBindingContextProvider> contextProviders = registry.lookupAllByType(GlobalBindingContextProvider.class);
        contextProviders.stream().map(GlobalBindingContextProvider::getBindingContext).forEach(expressionLanguage::addGlobalBindings);
        if (melDefault) {
            LOGGER.warn("Using MEL as the default expression language.");
        }
    }
}