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Refactored MethodInvokingTarget to MethodInvokingConsumer including changes to OutboundChannelAdapter.

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This commit is contained in:
Mark Fisher
2008-09-19 19:55:47 +00:00
parent eb9663dad3
commit 2d66b2b67d
13 changed files with 70 additions and 75 deletions
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4
org.springframework.integration/src/main/java/org/springframework/integration/config/ChannelAdapterParser.java
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@@ -29,7 +29,7 @@ import org.springframework.integration.ConfigurationException;
import org.springframework.integration.channel.DirectChannel;
import org.springframework.integration.endpoint.SourcePollingChannelAdapter;
import org.springframework.integration.endpoint.OutboundChannelAdapter;
import org.springframework.integration.handler.MethodInvokingTarget;
import org.springframework.integration.handler.MethodInvokingConsumer;
import org.springframework.integration.message.MethodInvokingSource;
import org.springframework.util.StringUtils;
import org.springframework.util.xml.DomUtils;
@@ -91,7 +91,7 @@ public class ChannelAdapterParser extends AbstractBeanDefinitionParser {
}
else if (StringUtils.hasText(target)) {
if (StringUtils.hasText(methodName)) {
BeanDefinitionBuilder invokerBuilder = BeanDefinitionBuilder.genericBeanDefinition(MethodInvokingTarget.class);
BeanDefinitionBuilder invokerBuilder = BeanDefinitionBuilder.genericBeanDefinition(MethodInvokingConsumer.class);
invokerBuilder.addConstructorArgReference(target);
invokerBuilder.addConstructorArgValue(methodName);
target = BeanDefinitionReaderUtils.registerWithGeneratedName(invokerBuilder.getBeanDefinition(), parserContext.getRegistry());

10
org.springframework.integration/src/main/java/org/springframework/integration/config/annotation/ChannelAdapterAnnotationPostProcessor.java
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@@ -30,7 +30,7 @@ import org.springframework.integration.channel.PollableChannel;
import org.springframework.integration.endpoint.MessageEndpoint;
import org.springframework.integration.endpoint.OutboundChannelAdapter;
import org.springframework.integration.endpoint.SourcePollingChannelAdapter;
import org.springframework.integration.handler.MethodInvokingTarget;
import org.springframework.integration.handler.MethodInvokingConsumer;
import org.springframework.integration.message.MethodInvokingSource;
import org.springframework.integration.scheduling.PollingSchedule;
import org.springframework.integration.scheduling.Schedule;
@@ -76,8 +76,8 @@ public class ChannelAdapterAnnotationPostProcessor implements MethodAnnotationPo
endpoint = this.createInboundChannelAdapter(source, channel, pollerAnnotation);
}
else if (method.getParameterTypes().length > 0 && !hasReturnValue(method)) {
MethodInvokingTarget target = new MethodInvokingTarget(bean, method);
endpoint = this.createOutboundChannelAdapter(target, channel, pollerAnnotation);
MethodInvokingConsumer consumer = new MethodInvokingConsumer(bean, method);
endpoint = this.createOutboundChannelAdapter(consumer, channel, pollerAnnotation);
}
else {
throw new ConfigurationException("The @ChannelAdapter can only be applied to methods that accept no arguments but have"
@@ -104,8 +104,8 @@ public class ChannelAdapterAnnotationPostProcessor implements MethodAnnotationPo
return adapter;
}
private OutboundChannelAdapter createOutboundChannelAdapter(MethodInvokingTarget target, MessageChannel channel, Poller pollerAnnotation) {
OutboundChannelAdapter adapter = new OutboundChannelAdapter(target);
private OutboundChannelAdapter createOutboundChannelAdapter(MethodInvokingConsumer consumer, MessageChannel channel, Poller pollerAnnotation) {
OutboundChannelAdapter adapter = new OutboundChannelAdapter(consumer);
adapter.setInputChannel(channel);
if (channel instanceof PollableChannel) {
Schedule schedule = (pollerAnnotation != null)

17
org.springframework.integration/src/main/java/org/springframework/integration/endpoint/OutboundChannelAdapter.java
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@@ -18,32 +18,29 @@ package org.springframework.integration.endpoint;
import org.springframework.integration.channel.MessageChannel;
import org.springframework.integration.message.Message;
import org.springframework.integration.message.MessageDeliveryException;
import org.springframework.integration.message.MessageTarget;
import org.springframework.integration.message.MessageConsumer;
import org.springframework.util.Assert;
/**
* A Channel Adapter implementation for connecting a {@link MessageChannel}
* to a {@link org.springframework.integration.message.MessageTarget}.
* to a {@link org.springframework.integration.message.MessageConsumer}.
*
* @author Mark Fisher
*/
public class OutboundChannelAdapter extends AbstractMessageConsumingEndpoint {
private final MessageTarget target;
private final MessageConsumer consumer;
public OutboundChannelAdapter(MessageTarget target) {
Assert.notNull(target, "target must not be null");
this.target = target;
public OutboundChannelAdapter(MessageConsumer consumer) {
Assert.notNull(consumer, "consumer must not be null");
this.consumer = consumer;
}
@Override
protected void onMessageInternal(Message<?> message) {
if (!this.target.send(message)) {
throw new MessageDeliveryException(message, "failed to deliver Message to target");
}
this.consumer.onMessage(message);
}
}

20
org.springframework.integration/src/main/java/org/springframework/integration/handler/MethodInvokingTarget.java → org.springframework.integration/src/main/java/org/springframework/integration/handler/MethodInvokingConsumer.java
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@@ -19,33 +19,35 @@ package org.springframework.integration.handler;
import java.lang.reflect.Method;
import org.springframework.integration.message.Message;
import org.springframework.integration.message.MessageConsumer;
import org.springframework.integration.message.MessageMappingMethodInvoker;
import org.springframework.integration.message.MessageTarget;
import org.springframework.integration.message.MessagingException;
import org.springframework.util.Assert;
/**
* A messaging target that invokes the specified method on the provided object.
* A {@link MessageConsumer} that invokes the specified method on the provided object.
*
* @author Mark Fisher
*/
public class MethodInvokingTarget extends MessageMappingMethodInvoker implements MessageTarget {
public class MethodInvokingConsumer extends MessageMappingMethodInvoker implements MessageConsumer {
public MethodInvokingTarget(Object object, Method method) {
public MethodInvokingConsumer(Object object, Method method) {
super(object, method);
Assert.isTrue(method.getReturnType().equals(void.class),
"MethodInvokingConsumer requires a void-returning method");
}
public MethodInvokingTarget(Object object, String methodName) {
public MethodInvokingConsumer(Object object, String methodName) {
super(object, methodName);
}
public boolean send(Message<?> message) {
public void onMessage(Message<?> message) {
Object result = this.invokeMethod(message);
if (result != null) {
throw new MessagingException(message, "the MethodInvokingTarget method must have a void or null return, "
+ "but '" + this + "' received a non-null value: [" + result + "]");
throw new MessagingException(message, "the MethodInvokingConsumer method must have a void return, "
+ "but '" + this + "' received a value: [" + result + "]");
}
return true;
}
}