Examples with DataType org.mule.runtime.api.metadata.DataType used on opensource projects

Example 46 with DataType

use of org.mule.runtime.api.metadata.DataType in project mule by mulesoft.

the class ExtendedTransformationService method applyAllTransformers.

private Message applyAllTransformers(final Message message, final CoreEvent event, final List<? extends Transformer> transformers) throws MuleException {
    Message result = message;
    if (!transformers.isEmpty()) {
        for (int index = 0; index < transformers.size(); index++) {
            Transformer transformer = transformers.get(index);
            Class<?> srcCls = result.getPayload().getDataType().getType();
            DataType originalSourceType = DataType.fromType(srcCls);
            if (transformer.isSourceDataTypeSupported(originalSourceType)) {
                if (logger.isDebugEnabled()) {
                    logger.debug("Using " + transformer + " to transform payload.");
                }
                result = transformMessage(result, event, transformer);
            } else {
                if (logger.isDebugEnabled()) {
                    logger.debug("Transformer " + transformer + " doesn't support the source payload: " + srcCls);
                }
                if (canSkipTransformer(result, transformers, index)) {
                    continue;
                }
                // Resolves implicit conversion if possible
                Transformer implicitTransformer = muleContext.getDataTypeConverterResolver().resolve(originalSourceType, transformer.getSourceDataTypes());
                if (implicitTransformer != null) {
                    if (logger.isDebugEnabled()) {
                        logger.debug("Performing implicit transformation with: " + transformer);
                    }
                    result = transformMessage(result, event, implicitTransformer);
                    result = transformMessage(result, event, transformer);
                } else {
                    throw new IllegalArgumentException("Cannot apply transformer " + transformer + " on source payload: " + srcCls);
                }
            }
        }
        Transformer lastTransformer = transformers.get(transformers.size() - 1);
        DataType returnDataType = lastTransformer.getReturnDataType();
        checkResultDataType(message, returnDataType, result.getPayload().getValue());
    }
    return result;
}

Example 47 with DataType

use of org.mule.runtime.api.metadata.DataType in project mule by mulesoft.

the class TransformerChain method generateTransformerName.

@Override
protected String generateTransformerName() {
    String name = transformers.get(0).getClass().getSimpleName();
    int i = name.indexOf("To");
    DataType dt = transformers.get(transformers.size() - 1).getReturnDataType();
    if (i > 0 && dt != null) {
        String target = dt.getType().getSimpleName();
        if (target.equals("byte[]")) {
            target = "byteArray";
        }
        name = name.substring(0, i + 2) + capitalize(target);
    }
    return name;
}

Example 48 with DataType

use of org.mule.runtime.api.metadata.DataType in project mule by mulesoft.

the class TransformerUtils method checkTransformerReturnClass.

/**
 * Checks whether a given value is a valid output for a transformer.
 *
 * @param transformer the transformer used to validate
 * @param value the output value
 * @throws TransformerException if the output value is of a unexpected type.
 */
public static void checkTransformerReturnClass(Transformer transformer, Object value) throws TransformerException {
    if (value == null && (transformer instanceof AbstractTransformer && ((AbstractTransformer) transformer).isAllowNullReturn())) {
        return;
    }
    if (transformer.getReturnDataType() != null) {
        DataTypeParamsBuilder dtBuilder = DataType.builder().fromObject(value);
        if (!(value instanceof DataHandler) && !(value instanceof DataSource)) {
            // To avoid getting an error because the DataType was constructed with a default mediaType
            dtBuilder = dtBuilder.mediaType(transformer.getReturnDataType().getMediaType());
        }
        DataType dt = dtBuilder.build();
        if (!transformer.getReturnDataType().isCompatibleWith(dt)) {
            throw new TransformerException(transformUnexpectedType(dt, transformer.getReturnDataType()), transformer);
        }
    }
    if (LOGGER.isDebugEnabled()) {
        LOGGER.debug("The transformed value is of expected type. Type is: " + ClassUtils.getSimpleName(value.getClass()));
    }
}

Example 49 with DataType

use of org.mule.runtime.api.metadata.DataType in project mule by mulesoft.

the class ReflectiveExpressionFunctionExecutor method getWrapper.

private Function<Object, Object> getWrapper(Parameter parameter) {
    Type[] generics = parameter.getType().getGenericInterfaces();
    Class<?> type;
    if (generics.length == 0) {
        type = Object.class;
    } else {
        type = model.getAllParameterModels().stream().filter(p -> p.getModelProperty(ImplementingParameterModelProperty.class).map(mp -> mp.getParameter().getName().equals(parameter.getName())).orElse(false)).map(p -> getType(p.getType()).orElse(Object.class)).findFirst().orElseThrow(() -> new IllegalStateException(format("Missing parameter with name [%s]", parameter.getName())));
    }
    DataType expected = DataType.fromType(type);
    return value -> {
        if (value == null) {
            return null;
        }
        if (value instanceof TypedValue) {
            if (((TypedValue) value).getDataType().equals(DataType.TYPED_VALUE)) {
                // DW will wrap anything of type TypedValue in a new TypedValue with DataType.TYPED_VALUE
                value = ((TypedValue) value).getValue();
            }
            TypedValue typedValue = (TypedValue) value;
            // We have to check for transformations of the value because weave won't be able to validate types
            return type.isInstance(typedValue.getValue()) ? value : new TypedValue<>(transformationService.transform(typedValue.getValue(), typedValue.getDataType(), expected), typedValue.getDataType());
        } else {
            return new TypedValue<>(value, fromObject(value));
        }
    };
}

Example 50 with DataType

use of org.mule.runtime.api.metadata.DataType in project mule by mulesoft.

the class ExpressionTypedValueValueResolver method resolve.

@Override
public TypedValue<T> resolve(ValueResolvingContext context) throws MuleException {
    initEvaluator();
    TypedValue typedValue = evaluator.resolveTypedValue(context.getEvent());
    if (!isInstance(expectedClass, typedValue.getValue())) {
        DataType expectedDataType = DataType.builder().type(expectedClass).mediaType(typedValue.getDataType().getMediaType()).build();
        return new TypedValue<>(typeSafeTransformer.<T>transform(typedValue.getValue(), typedValue.getDataType(), expectedDataType), expectedDataType);
    }
    return typedValue;
}