Examples with Transformer org.springframework.integration.transformer.Transformer used on opensource projects

Example 1 with Transformer

use of org.springframework.integration.transformer.Transformer in project spring-integration by spring-projects.

the class TransformerFactoryBean method createExpressionEvaluatingHandler.

@Override
protected MessageHandler createExpressionEvaluatingHandler(Expression expression) {
    Transformer transformer = new ExpressionEvaluatingTransformer(expression);
    MessageTransformingHandler handler = this.createHandler(transformer);
    handler.setPrimaryExpression(expression);
    return handler;
}

Example 2 with Transformer

use of org.springframework.integration.transformer.Transformer in project spring-integration by spring-projects.

the class TransformerFactoryBean method createMethodInvokingHandler.

@Override
protected MessageHandler createMethodInvokingHandler(Object targetObject, String targetMethodName) {
    Assert.notNull(targetObject, "targetObject must not be null");
    Transformer transformer = null;
    if (targetObject instanceof Transformer) {
        transformer = (Transformer) targetObject;
    } else {
        this.checkForIllegalTarget(targetObject, targetMethodName);
        if (StringUtils.hasText(targetMethodName)) {
            transformer = new MethodInvokingTransformer(targetObject, targetMethodName);
        } else {
            transformer = new MethodInvokingTransformer(targetObject);
        }
    }
    return this.createHandler(transformer);
}

Example 3 with Transformer

use of org.springframework.integration.transformer.Transformer in project spring-integration by spring-projects.

the class GroovyTransformerTests method testInt2433VerifyRiddingOfMessageProcessorsWrapping.

@Test
public void testInt2433VerifyRiddingOfMessageProcessorsWrapping() {
    assertTrue(this.groovyTransformerMessageHandler instanceof MessageTransformingHandler);
    Transformer transformer = TestUtils.getPropertyValue(this.groovyTransformerMessageHandler, "transformer", Transformer.class);
    assertTrue(transformer instanceof AbstractMessageProcessingTransformer);
    @SuppressWarnings("rawtypes") MessageProcessor messageProcessor = TestUtils.getPropertyValue(transformer, "messageProcessor", MessageProcessor.class);
    // before it was MethodInvokingMessageProcessor
    assertTrue(messageProcessor instanceof GroovyScriptExecutingMessageProcessor);
}

Example 4 with Transformer

use of org.springframework.integration.transformer.Transformer in project spring-integration by spring-projects.

the class InboundEndpointTests method testInt2809JavaTypePropertiesToAmqp.

@Test
public void testInt2809JavaTypePropertiesToAmqp() throws Exception {
    Connection connection = mock(Connection.class);
    doAnswer(invocation -> mock(Channel.class)).when(connection).createChannel(anyBoolean());
    ConnectionFactory connectionFactory = mock(ConnectionFactory.class);
    when(connectionFactory.createConnection()).thenReturn(connection);
    SimpleMessageListenerContainer container = new SimpleMessageListenerContainer();
    container.setConnectionFactory(connectionFactory);
    container.setAcknowledgeMode(AcknowledgeMode.MANUAL);
    AmqpInboundChannelAdapter adapter = new AmqpInboundChannelAdapter(container);
    adapter.setMessageConverter(new Jackson2JsonMessageConverter());
    PollableChannel channel = new QueueChannel();
    adapter.setOutputChannel(channel);
    adapter.setBeanFactory(mock(BeanFactory.class));
    adapter.afterPropertiesSet();
    Object payload = new Foo("bar1");
    Transformer objectToJsonTransformer = new ObjectToJsonTransformer();
    Message<?> jsonMessage = objectToJsonTransformer.transform(new GenericMessage<Object>(payload));
    MessageProperties amqpMessageProperties = new MessageProperties();
    amqpMessageProperties.setDeliveryTag(123L);
    org.springframework.amqp.core.Message amqpMessage = new SimpleMessageConverter().toMessage(jsonMessage.getPayload(), amqpMessageProperties);
    DefaultAmqpHeaderMapper.inboundMapper().fromHeadersToRequest(jsonMessage.getHeaders(), amqpMessageProperties);
    ChannelAwareMessageListener listener = (ChannelAwareMessageListener) container.getMessageListener();
    Channel rabbitChannel = mock(Channel.class);
    listener.onMessage(amqpMessage, rabbitChannel);
    Message<?> result = channel.receive(1000);
    assertEquals(payload, result.getPayload());
    assertSame(rabbitChannel, result.getHeaders().get(AmqpHeaders.CHANNEL));
    assertEquals(123L, result.getHeaders().get(AmqpHeaders.DELIVERY_TAG));
}

Example 5 with Transformer

use of org.springframework.integration.transformer.Transformer in project spring-integration by spring-projects.

the class IntegrationFlowDefinition method transform.

/**
 * Populate the {@link MessageTransformingHandler} instance for the provided {@link GenericTransformer}
 * for the specific {@code payloadType} to convert at runtime.
 * In addition accept options for the integration endpoint using {@link GenericEndpointSpec}.
 * @param payloadType the {@link Class} for expected payload type.
 * @param genericTransformer the {@link GenericTransformer} to populate.
 * @param endpointConfigurer the {@link Consumer} to provide integration endpoint options.
 * @param <P> the payload type - 'transform from'.
 * @param <T> the target type - 'transform to'.
 * @return the current {@link IntegrationFlowDefinition}.
 * @see MethodInvokingTransformer
 * @see LambdaMessageProcessor
 * @see GenericEndpointSpec
 */
public <P, T> B transform(Class<P> payloadType, GenericTransformer<P, T> genericTransformer, Consumer<GenericEndpointSpec<MessageTransformingHandler>> endpointConfigurer) {
    Assert.notNull(genericTransformer, "'genericTransformer' must not be null");
    Transformer transformer = genericTransformer instanceof Transformer ? (Transformer) genericTransformer : (isLambda(genericTransformer) ? new MethodInvokingTransformer(new LambdaMessageProcessor(genericTransformer, payloadType)) : new MethodInvokingTransformer(genericTransformer));
    return addComponent(transformer).handle(new MessageTransformingHandler(transformer), endpointConfigurer);
}