Example usage for org.springframework.messaging.handler.invocation HandlerMethodArgumentResolver supportsParameter

Introduction

In this page you can find the example usage for org.springframework.messaging.handler.invocation HandlerMethodArgumentResolver supportsParameter.

Prototype

boolean supportsParameter(MethodParameter parameter);

Source Link

Document

Whether the given MethodParameter method parameter is supported by this resolver.

Usage

From source file:org.springframework.cloud.aws.messaging.listener.QueueMessageHandlerTest.java

@Test
public void receiveMessage_withCustomArgumentResolvers_shouldCallThemBeforeTheDefaultOnes() throws Exception {
    // Arrange//from  w  w  w . jav a  2s .c  om
    StaticApplicationContext applicationContext = new StaticApplicationContext();
    applicationContext.registerSingleton("incomingMessageHandler", IncomingMessageHandler.class);

    HandlerMethodArgumentResolver handlerMethodArgumentResolver = mock(HandlerMethodArgumentResolver.class);
    when(handlerMethodArgumentResolver.supportsParameter(any(MethodParameter.class))).thenReturn(true);
    when(handlerMethodArgumentResolver.resolveArgument(any(MethodParameter.class), any(Message.class)))
            .thenReturn("Hello from a sender");
    MutablePropertyValues properties = new MutablePropertyValues(Collections
            .singletonList(new PropertyValue("customArgumentResolvers", handlerMethodArgumentResolver)));
    applicationContext.registerSingleton("queueMessageHandler", QueueMessageHandler.class, properties);
    applicationContext.refresh();

    QueueMessageHandler queueMessageHandler = applicationContext.getBean(QueueMessageHandler.class);

    // Act
    queueMessageHandler.handleMessage(MessageBuilder.withPayload("Hello from a sender")
            .setHeader(QueueMessageHandler.Headers.LOGICAL_RESOURCE_ID_MESSAGE_HEADER_KEY, "receive").build());

    // Assert
    verify(handlerMethodArgumentResolver, times(1)).resolveArgument(any(MethodParameter.class),
            any(Message.class));
}

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From source file:org.springframework.messaging.handler.invocation.HandlerMethodArgumentResolverComposite.java

/**
 * Find a registered {@link HandlerMethodArgumentResolver} that supports the given method parameter.
 *//*from  ww  w . jav a  2 s . com*/
private HandlerMethodArgumentResolver getArgumentResolver(MethodParameter parameter) {
    HandlerMethodArgumentResolver result = this.argumentResolverCache.get(parameter);
    if (result == null) {
        for (HandlerMethodArgumentResolver resolver : this.argumentResolvers) {
            if (resolver.supportsParameter(parameter)) {
                result = resolver;
                this.argumentResolverCache.put(parameter, result);
                break;
            }
        }
    }
    return result;
}

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