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

Example 6 with BindingContext

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

the class DefaultBindingContextBuilderTestCase method fromPreviousBindings.

@Test
public void fromPreviousBindings() {
    ExpressionModule module = ExpressionModule.builder(namespace).addBinding("id", typedValue).build();
    BindingContext previousContext = BindingContext.builder().addBinding(ID, typedValue).addBinding(OTHER_ID, typedValue).addModule(module).build();
    BindingContext context = BindingContext.builder(previousContext).build();
    assertThat(context.bindings(), hasSize(2));
    assertThat(context.identifiers(), hasItems(ID, OTHER_ID));
    assertThat(context.lookup(ID).get(), is(sameInstance(typedValue)));
    assertThat(context.lookup(OTHER_ID).get(), is(sameInstance(typedValue)));
    assertThat(context.modules(), hasSize(1));
    assertThat(context.modules(), hasItems(module));
}

Example 7 with BindingContext

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

the class DefaultBindingContextBuilderTestCase method addsBinding.

@Test
public void addsBinding() {
    BindingContext context = builder.addBinding(ID, typedValue).build();
    assertThat(context.bindings(), hasSize(1));
    assertThat(context.identifiers(), hasItem("id"));
    assertThat(context.lookup("id").get(), is(sameInstance(typedValue)));
}

Example 8 with BindingContext

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

the class DefaultBindingContextBuilderTestCase method addsBindings.

@Test
public void addsBindings() {
    ExpressionModule module = ExpressionModule.builder(namespace).addBinding(ID, typedValue).build();
    BindingContext previousContext = BindingContext.builder().addBinding(ID, typedValue).addBinding(OTHER_ID, typedValue).addModule(module).build();
    BindingContext context = builder.addAll(previousContext).build();
    assertThat(context.bindings(), hasSize(2));
    assertThat(context.identifiers(), hasItems(ID, OTHER_ID));
    assertThat(context.lookup(ID).get(), is(sameInstance(typedValue)));
    assertThat(context.lookup(OTHER_ID).get(), is(sameInstance(typedValue)));
    assertThat(context.modules(), hasSize(1));
    assertThat(context.modules(), hasItems(module));
    Collection<Binding> moduleBindings = context.modules().iterator().next().bindings();
    assertThat(moduleBindings, hasSize(1));
    assertThat(moduleBindings.iterator().next().identifier(), is(ID));
}

Example 9 with BindingContext

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

the class DefaultExpressionManagerMelDefaultTestCase method simpleCustomVariable.

@Test
@Description("Verifies that custom variables are considered.")
public void simpleCustomVariable() {
    Object object = new Object();
    BindingContext context = builder().addBinding(MY_VAR, new TypedValue(object, OBJECT)).build();
    assertThat(expressionManager.evaluate("#[myVar]", context).getValue(), equalTo(object));
}

Example 10 with BindingContext

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

the class DefaultExpressionManagerTestCase method globals.

@Test
@Description("Verifies that global bindings can be added.")
public void globals() {
    DataType integerType = fromType(Integer.class);
    ExpressionFunction multiply = new ExpressionFunction() {

        @Override
        public Object call(Object[] objects, BindingContext bindingContext) {
            return ((Integer) objects[0]) * ((Integer) objects[1]);
        }

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

        @Override
        public List<FunctionParameter> parameters() {
            return asList(new FunctionParameter("x", integerType), new FunctionParameter("y", integerType));
        }
    };
    BindingContext globalContext = builder().addBinding("aNum", new TypedValue<>(4, fromType(Integer.class))).addBinding("times", new TypedValue<>(multiply, fromFunction(multiply))).build();
    expressionManager.addGlobalBindings(globalContext);
    TypedValue result = expressionManager.evaluate("aNum times 5");
    assertThat(result.getValue(), is(20));
    expressionManager.addGlobalBindings(builder().addBinding("otherNum", new TypedValue(3, integerType)).build());
    result = expressionManager.evaluate("(times(7, 3) + otherNum) / aNum");
    assertThat(result.getValue(), is(6));
}