Examples with MessageTransformerException org.mule.runtime.core.api.transformer.MessageTransformerException used on opensource projects

Example 1 with MessageTransformerException

use of org.mule.runtime.core.api.transformer.MessageTransformerException in project mule by mulesoft.

the class TransformerChain method transformMessage.

@Override
public Object transformMessage(CoreEvent event, Charset outputEncoding) throws MessageTransformerException {
    Message result = event.getMessage();
    Object temp = event.getMessage();
    Transformer lastTransformer = null;
    for (Object element : transformers) {
        lastTransformer = (Transformer) element;
        try {
            temp = lastTransformer.transform(temp);
        } catch (TransformerException e) {
            throw new MessageTransformerException(lastTransformer, e, event.getMessage());
        }
        if (temp instanceof Message) {
            result = (Message) temp;
        } else {
            result = Message.builder(event.getMessage()).value(temp).build();
            event = CoreEvent.builder(event).message(result).build();
        }
    }
    if (lastTransformer != null && Message.class.isAssignableFrom(lastTransformer.getReturnDataType().getType())) {
        return result;
    } else {
        return result.getPayload().getValue();
    }
}

Example 2 with MessageTransformerException

use of org.mule.runtime.core.api.transformer.MessageTransformerException in project mule by mulesoft.

the class DefaultTransformationService method getPayload.

/**
 * Attempts to obtain the payload of this message with the desired Class type. This will try and resolve a transformer that can
 * do this transformation. If a transformer cannot be found an exception is thrown. Any transformers added to the registry will
 * be checked for compatibility.
 *
 * @param resultType the desired return type
 * @param encoding the encoding to use if required
 * @return The converted payload of this message. Note that this method will not alter the payload of this message <b>unless</b>
 *         the payload is an {@link InputStream} in which case the stream will be read and the payload will become the fully
 *         read stream.
 * @throws MessageTransformerException if a transformer cannot be found or there is an error during transformation of the payload.
 */
@SuppressWarnings("unchecked")
protected <T> T getPayload(Message message, DataType resultType, Charset encoding) throws MessageTransformerException {
    // Handle null by ignoring the request
    if (resultType == null) {
        throw new IllegalArgumentException(objectIsNull("resultType").getMessage());
    }
    DataType dataType = DataType.builder(resultType).type(message.getPayload().getDataType().getType()).build();
    // If no conversion is necessary, just return the payload as-is
    if (resultType.isCompatibleWith(dataType)) {
        return (T) message.getPayload().getValue();
    }
    // The transformer to execute on this message
    Transformer transformer = null;
    try {
        transformer = ((MuleContextWithRegistries) muleContext).getRegistry().lookupTransformer(dataType, resultType);
        if (transformer == null) {
            throw new MessageTransformerException(noTransformerFoundForMessage(dataType, resultType), null, message);
        }
        // Pass in the message itself
        Object result = transformer.transform(message, encoding);
        // Unless we disallow Object.class as a valid return type we need to do this extra check
        checkResultDataType(message, resultType, result);
        return (T) result;
    } catch (MessageTransformerException e) {
        throw e;
    } catch (TransformerException e) {
        throw new MessageTransformerException(transformer, e, message);
    }
}

Example 3 with MessageTransformerException

use of org.mule.runtime.core.api.transformer.MessageTransformerException in project mule by mulesoft.

the class DefaultTransformationService method checkResultDataType.

protected void checkResultDataType(Message message, DataType resultType, Object value) throws MessageTransformerException {
    if (value != null && !resultType.getType().isAssignableFrom(value.getClass())) {
        TypedValue<Object> actualType = TypedValue.of(value);
        Message transformedMessage = Message.builder(message).payload(actualType).build();
        throw new MessageTransformerException(transformOnObjectNotOfSpecifiedType(resultType, actualType), null, transformedMessage);
    }
}

Example 4 with MessageTransformerException

use of org.mule.runtime.core.api.transformer.MessageTransformerException in project mule by mulesoft.

the class ExpressionTransformer method transformMessage.

@Override
public Object transformMessage(CoreEvent event, Charset outputEncoding) throws MessageTransformerException {
    Object[] results = new Object[arguments.size()];
    int i = 0;
    for (Iterator<ExpressionArgument> iterator = arguments.iterator(); iterator.hasNext(); i++) {
        ExpressionArgument argument = iterator.next();
        try {
            results[i] = argument.evaluate(event);
        } catch (ExpressionRuntimeException e) {
            throw new MessageTransformerException(this, e, event.getMessage());
        }
        if (!argument.isOptional() && results[i] == null) {
            throw new MessageTransformerException(expressionReturnedNull(argument.getExpression()), this, event.getMessage());
        }
    }
    if (isReturnSourceIfNull() && checkIfAllAreNull(results)) {
        return event.getMessage();
    }
    if (results.length == 1) {
        return results[0];
    } else {
        return results;
    }
}

Example 5 with MessageTransformerException

use of org.mule.runtime.core.api.transformer.MessageTransformerException in project mule by mulesoft.

the class SoapOperationExecutor method execute.

/**
 * {@inheritDoc}
 */
@Override
public Publisher<Object> execute(ExecutionContext<OperationModel> context) {
    try {
        String serviceId = context.getParameter(SERVICE_PARAM);
        ForwardingSoapClient connection = (ForwardingSoapClient) connectionResolver.resolve(context).get();
        Map<String, String> customHeaders = connection.getCustomHeaders(serviceId, getOperation(context));
        SoapRequest request = getRequest(context, customHeaders);
        SoapClient soapClient = connection.getSoapClient(serviceId);
        SoapResponse response = connection.getExtensionsClientDispatcher(() -> new ExtensionsClientArgumentResolver(registry, policyManager).resolve(context).get()).map(d -> soapClient.consume(request, d)).orElseGet(() -> soapClient.consume(request));
        return justOrEmpty(response.getAsResult(streamingHelperArgumentResolver.resolve(context).get()));
    } catch (MessageTransformerException | TransformerException e) {
        return error(e);
    } catch (Exception e) {
        return error(soapExceptionEnricher.enrich(e));
    } catch (Throwable t) {
        return error(wrapFatal(t));
    }
}