Examples with BindingContext org.mule.runtime.api.el.BindingContext used on opensource projects

Example 1 with BindingContext

use of org.mule.runtime.api.el.BindingContext in project mule by mulesoft.

the class DataWeaveExpressionLanguageAdaptorTestCase method payloadExpressionShouldNotBeEvaluate.

@Test
public void payloadExpressionShouldNotBeEvaluate() throws MuleException {
    BindingContext bindingContext = BindingContext.builder().build();
    MuleContext muleContext = mock(MuleContext.class);
    DefaultExpressionLanguageFactoryService languageFactory = mock(DefaultExpressionLanguageFactoryService.class);
    ExpressionLanguage expressionLanguage = spy(ExpressionLanguage.class);
    when(languageFactory.create()).thenReturn(expressionLanguage);
    CoreEvent event = testEvent();
    new DataWeaveExpressionLanguageAdaptor(muleContext, registry, languageFactory).evaluate("#[payload]", event, bindingContext);
    verify(expressionLanguage, never()).evaluate(eq("payload"), any(BindingContext.class));
}

Example 2 with BindingContext

use of org.mule.runtime.api.el.BindingContext in project mule by mulesoft.

the class ExtendedExpressionLanguageAdapterTestCase method globalContext.

@Test
@Description("Verifies that global binding context only work for DW.")
public void globalContext() throws Exception {
    ExpressionFunction expressionFunction = new ExpressionFunction() {

        private DataType dataType = STRING;

        @Override
        public Object call(Object[] objects, BindingContext bindingContext) {
            return ((String) objects[0]).toUpperCase();
        }

        @Override
        public Optional<DataType> returnType() {
            return Optional.of(dataType);
        }

        @Override
        public List<FunctionParameter> parameters() {
            return asList(new FunctionParameter("x", dataType));
        }
    };
    String global = "global";
    String value = "var";
    BindingContext context = BindingContext.builder().addBinding(global, new TypedValue(value, STRING)).addBinding("upper", new TypedValue(expressionFunction, fromFunction(expressionFunction))).build();
    expressionLanguageAdapter.addGlobalBindings(context);
    assertThat(expressionLanguageAdapter.evaluate(global, testEvent(), emptyBindingContext).getValue(), is(value));
    assertThat(expressionLanguageAdapter.evaluate("upper('hey')", testEvent(), emptyBindingContext).getValue(), is("HEY"));
    assertThat(expressionLanguageAdapter.evaluate(melify(global), testEvent(), context).getValue(), is(value));
    expectedException.expect(ExpressionRuntimeException.class);
    expressionLanguageAdapter.evaluate(melify(global), testEvent(), emptyBindingContext);
}

Example 3 with BindingContext

use of org.mule.runtime.api.el.BindingContext in project mule by mulesoft.

the class MVELExpressionLanguage method evaluate.

@Override
public TypedValue evaluate(String expression, CoreEvent event, CoreEvent.Builder eventBuilder, ComponentLocation componentLocation, BindingContext bindingContext) {
    expression = removeExpressionMarker(expression);
    Map<String, Object> bindingMap = bindingContext.identifiers().stream().collect(toMap(id -> id, id -> bindingContext.lookup(id).get().getValue()));
    final Object value = evaluateUntyped(expression, (PrivilegedEvent) event, (PrivilegedEvent.Builder) eventBuilder, componentLocation, bindingMap);
    if (value instanceof TypedValue) {
        return (TypedValue) value;
    } else {
        final Serializable compiledExpression = expressionExecutor.getCompiledExpression(expression);
        DataType dataType = event != null ? dataTypeResolver.resolve(value, (PrivilegedEvent) event, compiledExpression) : OBJECT;
        return new TypedValue(value, dataType);
    }
}

Example 4 with BindingContext

use of org.mule.runtime.api.el.BindingContext in project mule by mulesoft.

the class MuleFunctionsBindingContextProvider method getBindingContext.

@Override
public BindingContext getBindingContext() {
    BindingContext.Builder builder = BindingContext.builder();
    PropertyAccessFunction propertyFunction = new PropertyAccessFunction(configurationProperties);
    builder.addBinding("p", new TypedValue(propertyFunction, fromFunction(propertyFunction)));
    ExpressionFunction lookupFunction = new LookupFunction(componentLocator);
    builder.addBinding("lookup", new TypedValue(lookupFunction, fromFunction(lookupFunction)));
    ExpressionFunction causedByFunction = new CausedByFunction(errorTypeRepository);
    builder.addBinding("causedBy", new TypedValue(causedByFunction, fromFunction(causedByFunction)));
    return builder.build();
}

Example 5 with BindingContext

use of org.mule.runtime.api.el.BindingContext in project mule by mulesoft.

the class SoapOperationExecutor method evaluateHeaders.

private Object evaluateHeaders(InputStream headers) {
    String hs = IOUtils.toString(headers);
    BindingContext context = BindingContext.builder().addBinding("payload", new TypedValue<>(hs, DataType.XML_STRING)).build();
    return expressionExecutor.evaluate("%dw 2.0 \n" + "output application/java \n" + "---\n" + "payload.headers mapObject (value, key) -> {\n" + "    '$key' : write((key): value, \"application/xml\")\n" + "}", context).getValue();
}