@Override
public void afterPropertiesSet() throws Exception {
Assert.notNull(BindableProxyFactory.this.channelFactory, "Channel Factory cannot be null");
ReflectionUtils.doWithMethods(
this.type,
new ReflectionUtils.MethodCallback() {
@Override
public void doWith(Method method) throws IllegalArgumentException {
Input input = AnnotationUtils.findAnnotation(method, Input.class);
if (input != null) {
String name = BindingBeanDefinitionRegistryUtils.getChannelName(input, method);
validateChannelType(method.getReturnType());
MessageChannel sharedChannel = locateSharedChannel(name);
if (sharedChannel == null) {
BindableProxyFactory.this.inputHolders.put(
name,
new ChannelHolder(
BindableProxyFactory.this.channelFactory.createInputChannel(name), true));
} else {
BindableProxyFactory.this.inputHolders.put(
name, new ChannelHolder(sharedChannel, false));
}
}
}
});
ReflectionUtils.doWithMethods(
this.type,
new ReflectionUtils.MethodCallback() {
@Override
public void doWith(Method method) throws IllegalArgumentException {
Output output = AnnotationUtils.findAnnotation(method, Output.class);
if (output != null) {
String name = BindingBeanDefinitionRegistryUtils.getChannelName(output, method);
validateChannelType(method.getReturnType());
MessageChannel sharedChannel = locateSharedChannel(name);
if (sharedChannel == null) {
BindableProxyFactory.this.outputHolders.put(
name,
new ChannelHolder(
BindableProxyFactory.this.channelFactory.createOutputChannel(name), true));
} else {
BindableProxyFactory.this.outputHolders.put(
name, new ChannelHolder(sharedChannel, false));
}
}
}
});
}
/**
* Discover a {@link StepExecution} as a field in the test case or create one if none is
* available.
*
* @param testContext the current test context
* @return a {@link StepExecution}
*/
protected StepExecution getStepExecution(TestContext testContext) {
Object target;
try {
Method method = TestContext.class.getMethod(GET_TEST_INSTANCE_METHOD);
target = ReflectionUtils.invokeMethod(method, testContext);
} catch (NoSuchMethodException e) {
throw new IllegalStateException(
"No such method " + GET_TEST_INSTANCE_METHOD + " on provided TestContext", e);
}
ExtractorMethodCallback method =
new ExtractorMethodCallback(StepExecution.class, "getStepExecution");
ReflectionUtils.doWithMethods(target.getClass(), method);
if (method.getName() != null) {
HippyMethodInvoker invoker = new HippyMethodInvoker();
invoker.setTargetObject(target);
invoker.setTargetMethod(method.getName());
try {
invoker.prepare();
return (StepExecution) invoker.invoke();
} catch (Exception e) {
throw new IllegalArgumentException(
"Could not create step execution from method: " + method.getName(), e);
}
}
return MetaDataInstanceFactory.createStepExecution();
}
@Override
public Object postProcessAfterInitialization(final Object bean, final String beanName)
throws BeansException {
Class<?> targetClass = AopUtils.getTargetClass(bean);
final RabbitListener classLevelListener =
AnnotationUtils.findAnnotation(bean.getClass(), RabbitListener.class);
final List<Method> multiMethods = new ArrayList<Method>();
ReflectionUtils.doWithMethods(
targetClass,
new ReflectionUtils.MethodCallback() {
@Override
public void doWith(Method method)
throws IllegalArgumentException, IllegalAccessException {
RabbitListener rabbitListener =
AnnotationUtils.getAnnotation(method, RabbitListener.class);
if (rabbitListener != null) {
processAmqpListener(rabbitListener, method, bean, beanName);
}
if (classLevelListener != null) {
RabbitHandler rabbitHandler =
AnnotationUtils.getAnnotation(method, RabbitHandler.class);
if (rabbitHandler != null) {
multiMethods.add(method);
}
}
}
});
if (classLevelListener != null) {
processMultiMethodListener(classLevelListener, multiMethods, bean, beanName);
}
return bean;
}
/**
* Initialize a new HandlerMethodResolver for the specified handler type.
*
* @param handlerType the handler class to introspect
*/
public void init(Class<?> handlerType) {
Class<?>[] handlerTypes =
Proxy.isProxyClass(handlerType)
? handlerType.getInterfaces()
: new Class<?>[] {handlerType};
for (final Class<?> currentHandlerType : handlerTypes) {
ReflectionUtils.doWithMethods(
currentHandlerType,
new ReflectionUtils.MethodCallback() {
public void doWith(Method method) {
Method specificMethod = ClassUtils.getMostSpecificMethod(method, currentHandlerType);
if (isHandlerMethod(method)) {
handlerMethods.add(specificMethod);
} else if (method.isAnnotationPresent(InitBinder.class)) {
initBinderMethods.add(specificMethod);
} else if (method.isAnnotationPresent(ModelAttribute.class)) {
modelAttributeMethods.add(specificMethod);
}
}
},
ReflectionUtils.NON_BRIDGED_METHODS);
}
this.typeLevelMapping = AnnotationUtils.findAnnotation(handlerType, RequestMapping.class);
SessionAttributes sessionAttributes = handlerType.getAnnotation(SessionAttributes.class);
this.sessionAttributesFound = (sessionAttributes != null);
if (this.sessionAttributesFound) {
this.sessionAttributeNames.addAll(Arrays.asList(sessionAttributes.value()));
this.sessionAttributeTypes.addAll(Arrays.asList(sessionAttributes.types()));
}
}
@Override
public Object postProcessAfterInitialization(final Object bean, String beanName) {
if (!this.nonAnnotatedClasses.contains(bean.getClass())) {
final Set<Method> annotatedMethods = new LinkedHashSet<Method>(1);
Class<?> targetClass = AopUtils.getTargetClass(bean);
ReflectionUtils.doWithMethods(
targetClass,
new MethodCallback() {
@Override
public void doWith(Method method)
throws IllegalArgumentException, IllegalAccessException {
for (Scheduled scheduled :
AnnotationUtils.getRepeatableAnnotation(
method, Schedules.class, Scheduled.class)) {
processScheduled(scheduled, method, bean);
annotatedMethods.add(method);
}
}
});
if (annotatedMethods.isEmpty()) {
this.nonAnnotatedClasses.add(bean.getClass());
}
}
return bean;
}
/**
* Check that {@link #blogService} is advised for caching and that all methods relating to
* published posts have the {@link Cacheable} annotation. Note that while more extensive mocking
* and testing through {@code MockMvc} etc is possible, this approach is less fragile and much
* more concise while still being likely to catch configuration errors.
*/
@Test
public void blogServiceIsAdvisedForCaching() {
assertThat("BlogService is not advised as expected", blogService, instanceOf(Advised.class));
boolean hasCachingAdvisor = false;
for (Advisor advisor : ((Advised) blogService).getAdvisors()) {
if (advisor instanceof BeanFactoryCacheOperationSourceAdvisor) {
hasCachingAdvisor = true;
break;
}
}
assertTrue("BlogService is advised, but does not have caching advisor", hasCachingAdvisor);
// @formatter:off
ReflectionUtils.doWithMethods(
BlogService.class,
new ReflectionUtils.MethodCallback() { // TODO: lambda
@Override
public void doWith(Method method)
throws IllegalArgumentException, IllegalAccessException {
Cacheable cacheable = AnnotationUtils.findAnnotation(method, Cacheable.class);
String methodName = method.getName();
if (methodName.matches("^get.*Published.*$")) {
assertNotNull(
"Method " + methodName + " was expected to have Cacheable annotation.",
cacheable);
String[] cacheName = cacheable.value();
assertThat(cacheName[0], equalTo(DatabaseConfig.CACHE_NAME));
} else {
assertNull(
"Method " + methodName + " was not expected to have Cacheable annotation.",
cacheable);
}
}
});
// @formatter:on
}
@Test
public void testGateway2() throws Exception {
FtpOutboundGateway gateway =
TestUtils.getPropertyValue(gateway2, "handler", FtpOutboundGateway.class);
assertEquals(
"X", TestUtils.getPropertyValue(gateway, "remoteFileTemplate.remoteFileSeparator"));
assertNotNull(TestUtils.getPropertyValue(gateway, "remoteFileTemplate.sessionFactory"));
assertTrue(
TestUtils.getPropertyValue(gateway, "remoteFileTemplate.sessionFactory")
instanceof CachingSessionFactory);
assertNotNull(TestUtils.getPropertyValue(gateway, "outputChannel"));
assertEquals(
"local-test-dir",
TestUtils.getPropertyValue(gateway, "localDirectoryExpression.literalValue"));
assertFalse((Boolean) TestUtils.getPropertyValue(gateway, "autoCreateLocalDirectory"));
assertEquals(Command.GET, TestUtils.getPropertyValue(gateway, "command"));
@SuppressWarnings("unchecked")
Set<String> options = TestUtils.getPropertyValue(gateway, "options", Set.class);
assertTrue(options.contains(Option.PRESERVE_TIMESTAMP));
gateway.handleMessage(new GenericMessage<String>("foo"));
assertFalse(TestUtils.getPropertyValue(gateway, "requiresReply", Boolean.class));
assertEquals(1, adviceCalled);
// INT-3129
assertNotNull(TestUtils.getPropertyValue(gateway, "localFilenameGeneratorExpression"));
final AtomicReference<Method> genMethod = new AtomicReference<Method>();
ReflectionUtils.doWithMethods(
FtpOutboundGateway.class,
new ReflectionUtils.MethodCallback() {
@Override
public void doWith(Method method)
throws IllegalArgumentException, IllegalAccessException {
if ("generateLocalFileName".equals(method.getName())) {
method.setAccessible(true);
genMethod.set(method);
}
}
});
assertEquals(
"FOO.afoo", genMethod.get().invoke(gateway, new GenericMessage<String>(""), "foo"));
assertThat(
TestUtils.getPropertyValue(gateway, "mputFilter"),
Matchers.instanceOf(SimplePatternFileListFilter.class));
}
/**
* Searches for {@link org.springframework.security.access.prepost.PreAuthorize} and {@link
* org.springframework.security.access.prepost.PostAuthorize} annotations representing permissions
* and parses them. Parsed annotations are used to find permissions. After that those permissions
* are added to {@link org.motechproject.security.service.MotechPermissionService}
*
* @param bean to be processed
* @param beanName name of the bean
* @return processed bean
*/
@Override
public Object postProcessAfterInitialization(final Object bean, final String beanName) {
LOGGER.debug("Searching for security annotations in: {}", beanName);
doWithMethods(
bean.getClass(),
new MethodCallback() {
@Override
public void doWith(Method method) throws IllegalAccessException {
Method methodOfOriginalClassIfProxied =
findMethod(getTargetClass(bean), method.getName(), method.getParameterTypes());
if (methodOfOriginalClassIfProxied != null) {
PreAuthorize preAuthorize =
findAnnotation(methodOfOriginalClassIfProxied, PreAuthorize.class);
PostAuthorize postAuthorize =
findAnnotation(methodOfOriginalClassIfProxied, PostAuthorize.class);
List<String> annotations = new ArrayList<>(2);
List<String> permissions = new ArrayList<>();
if (preAuthorize != null) {
annotations.add(preAuthorize.value());
}
if (postAuthorize != null) {
annotations.add(postAuthorize.value());
}
for (String annotation : annotations) {
SpelExpression expression =
(SpelExpression) annotationParser.parseExpression(annotation);
permissions.addAll(findPermissions(expression.getAST()));
}
addRoleAndPermissions(permissions);
}
}
});
LOGGER.debug("Searched for security annotations in: {}", beanName);
return bean;
}
/**
* 检查上下文中的BOP服务方法
*
* @throws org.springframework.beans.BeansException
*/
private void registerFromContext(final ApplicationContext context) throws BeansException {
if (logger.isDebugEnabled()) {
logger.debug("对Spring上下文中的Bean进行扫描，查找ROP服务方法: " + context);
}
String[] beanNames = context.getBeanNamesForType(Object.class);
for (final String beanName : beanNames) {
Class<?> handlerType = context.getType(beanName);
ReflectionUtils.doWithMethods(
handlerType,
new ReflectionUtils.MethodCallback() {
public void doWith(Method method)
throws IllegalArgumentException, IllegalAccessException {
ReflectionUtils.makeAccessible(method);
ServiceMethod serviceMethod = method.getAnnotation(ServiceMethod.class);
ServiceMethodGroup serviceMethodGroup =
method.getDeclaringClass().getAnnotation(ServiceMethodGroup.class);
ServiceMethodDefinition definition = null;
if (serviceMethodGroup != null) {
definition = buildServiceMethodDefinition(serviceMethodGroup, serviceMethod);
} else {
definition = buildServiceMethodDefinition(serviceMethod);
}
ServiceMethodHandler serviceMethodHandler = new ServiceMethodHandler();
serviceMethodHandler.setServiceMethodDefinition(definition);
// 1.set handler
serviceMethodHandler.setHandler(context.getBean(beanName)); // handler
serviceMethodHandler.setHandlerMethod(method); // handler'method
if (method.getParameterTypes().length > 0) { // handler method's parameter
Class<?> aClass = method.getParameterTypes()[0];
Assert.isAssignable(RopRequest.class, aClass, "@ServiceMethod方法入参必须是RopRequest");
serviceMethodHandler.setRequestType((Class<? extends RopRequest>) aClass);
}
// 2.set sign fieldNames
serviceMethodHandler.setIgnoreSignFieldNames(
getIgnoreSignFieldNames(serviceMethodHandler.getRequestType()));
addServiceMethod(
serviceMethod.value(), serviceMethod.version(), serviceMethodHandler);
if (logger.isDebugEnabled()) {
logger.debug(
"注册服务方法："
+ method.getDeclaringClass().getCanonicalName()
+ "#"
+ method.getName()
+ "(..)");
}
}
},
new ReflectionUtils.MethodFilter() {
public boolean matches(Method method) {
return AnnotationUtils.findAnnotation(method, ServiceMethod.class) != null;
}
});
}
if (context.getParent() != null) {
registerFromContext(context.getParent());
}
if (logger.isInfoEnabled()) {
logger.info("共注册了" + serviceHandlerMap.size() + "个服务方法");
}
}
@Override
public Object postProcessAfterInitialization(final Object bean, final String beanName)
throws BeansException {
Assert.notNull(this.beanFactory, "BeanFactory must not be null");
final Class<?> beanClass = this.getBeanClass(bean);
if (this.requireComponentAnnotation
&& AnnotationUtils.findAnnotation(beanClass, Component.class) == null) {
// we only post-process stereotype components
return bean;
}
ReflectionUtils.doWithMethods(
beanClass,
new ReflectionUtils.MethodCallback() {
@Override
@SuppressWarnings({"unchecked", "rawtypes"})
public void doWith(Method method)
throws IllegalArgumentException, IllegalAccessException {
Map<Class<? extends Annotation>, List<Annotation>> annotationChains =
new HashMap<Class<? extends Annotation>, List<Annotation>>();
for (Class<? extends Annotation> annotationType :
MessagingAnnotationPostProcessor.this.postProcessors.keySet()) {
if (AnnotatedElementUtils.isAnnotated(method, annotationType.getName())) {
List<Annotation> annotationChain = getAnnotationChain(method, annotationType);
if (annotationChain.size() > 0) {
annotationChains.put(annotationType, annotationChain);
}
}
}
for (Map.Entry<Class<? extends Annotation>, List<Annotation>> entry :
annotationChains.entrySet()) {
Class<? extends Annotation> annotationType = entry.getKey();
List<Annotation> annotations = entry.getValue();
MethodAnnotationPostProcessor postProcessor =
MessagingAnnotationPostProcessor.this.postProcessors.get(annotationType);
if (postProcessor != null
&& postProcessor.shouldCreateEndpoint(method, annotations)) {
Method targetMethod = method;
if (AopUtils.isJdkDynamicProxy(bean)) {
try {
targetMethod =
bean.getClass().getMethod(method.getName(), method.getParameterTypes());
} catch (NoSuchMethodException e) {
throw new IllegalArgumentException(
"Service methods must be extracted to the service "
+ "interface for JdkDynamicProxy. The affected bean is: '"
+ beanName
+ "' "
+ "and its method: '"
+ method
+ "'",
e);
}
}
Object result =
postProcessor.postProcess(bean, beanName, targetMethod, annotations);
if (result != null && result instanceof AbstractEndpoint) {
AbstractEndpoint endpoint = (AbstractEndpoint) result;
String autoStartup =
MessagingAnnotationUtils.resolveAttribute(
annotations, "autoStartup", String.class);
if (StringUtils.hasText(autoStartup)) {
autoStartup = getBeanFactory().resolveEmbeddedValue(autoStartup);
if (StringUtils.hasText(autoStartup)) {
endpoint.setAutoStartup(Boolean.parseBoolean(autoStartup));
}
}
String phase =
MessagingAnnotationUtils.resolveAttribute(annotations, "phase", String.class);
if (StringUtils.hasText(phase)) {
phase = getBeanFactory().resolveEmbeddedValue(phase);
if (StringUtils.hasText(phase)) {
endpoint.setPhase(Integer.parseInt(phase));
}
}
String endpointBeanName = generateBeanName(beanName, method, annotationType);
endpoint.setBeanName(endpointBeanName);
getBeanFactory().registerSingleton(endpointBeanName, endpoint);
getBeanFactory().initializeBean(endpoint, endpointBeanName);
Role role = AnnotationUtils.findAnnotation(method, Role.class);
if (role != null) {
MessagingAnnotationPostProcessor.this.lazyLifecycleRoles.add(
role.value(), endpointBeanName);
}
}
}
}
}
},
ReflectionUtils.USER_DECLARED_METHODS);
return bean;
}
@Test
public void testKafkaMessageDrivenChannelAdapterParser() throws Exception {
assertFalse(this.kafkaListener.isAutoStartup());
assertFalse(this.kafkaListener.isRunning());
assertEquals(100, this.kafkaListener.getPhase());
assertSame(this.nullChannel, TestUtils.getPropertyValue(this.kafkaListener, "outputChannel"));
assertSame(this.errorChannel, TestUtils.getPropertyValue(this.kafkaListener, "errorChannel"));
assertSame(this.keyDecoder, TestUtils.getPropertyValue(this.kafkaListener, "keyDecoder"));
assertSame(
this.payloadDecoder, TestUtils.getPropertyValue(this.kafkaListener, "payloadDecoder"));
KafkaMessageListenerContainer container =
TestUtils.getPropertyValue(
this.kafkaListener, "messageListenerContainer", KafkaMessageListenerContainer.class);
assertSame(
this.connectionFactory,
TestUtils.getPropertyValue(container, "kafkaTemplate.connectionFactory"));
assertSame(this.offsetManager, container.getOffsetManager());
assertSame(this.errorHandler, container.getErrorHandler());
assertSame(this.executor, container.getFetchTaskExecutor());
assertEquals(10, container.getConcurrency());
assertEquals(1000, container.getMaxFetch());
assertEquals(1024, container.getQueueSize());
assertEquals(5000, container.getStopTimeout());
assertArrayEquals(
new String[] {"foo", "bar"},
TestUtils.getPropertyValue(container, "topics", String[].class));
assertOverrides(this.kafkaListener, false, false, false, true);
assertOverrides(this.withMBFactoryOverrideAndId, true, true, false, false);
assertOverrides(this.withMBFactoryOverrideAndTS, true, false, true, true);
assertOverrides(this.withOverrideIdTS, false, true, true, true);
final AtomicReference<Method> toMessage = new AtomicReference<Method>();
ReflectionUtils.doWithMethods(
KafkaMessageDrivenChannelAdapter.class,
new MethodCallback() {
@Override
public void doWith(Method method)
throws IllegalArgumentException, IllegalAccessException {
method.setAccessible(true);
toMessage.set(method);
}
},
new MethodFilter() {
@Override
public boolean matches(Method method) {
return method.getName().equals("toMessage");
}
});
Message<?> m = getAMessageFrom(this.kafkaListener, toMessage.get());
assertNull(m.getHeaders().getId());
assertNull(m.getHeaders().getTimestamp());
assertNull(m.getHeaders().get(KafkaHeaders.ACKNOWLEDGMENT));
assertRest(m);
m = getAMessageFrom(this.withMBFactoryOverrideAndId, toMessage.get());
assertThat(m, Matchers.instanceOf(GenericMessage.class));
assertNotNull(m.getHeaders().getId());
assertNotNull(m.getHeaders().getTimestamp());
assertNotNull(m.getHeaders().get(KafkaHeaders.ACKNOWLEDGMENT));
assertRest(m);
m = getAMessageFrom(this.withMBFactoryOverrideAndTS, toMessage.get());
assertThat(m, Matchers.instanceOf(GenericMessage.class));
assertNotNull(m.getHeaders().getId());
assertNotNull(m.getHeaders().getTimestamp());
assertNull(m.getHeaders().get(KafkaHeaders.ACKNOWLEDGMENT));
assertRest(m);
m = getAMessageFrom(this.withOverrideIdTS, toMessage.get());
assertNotNull(m.getHeaders().getId());
assertNotNull(m.getHeaders().getTimestamp());
assertNull(m.getHeaders().get(KafkaHeaders.ACKNOWLEDGMENT));
assertRest(m);
}
private Map<String, Map<Class<?>, HandlerMethod>> findHandlerMethodsForTarget(
final Object targetObject,
final Class<? extends Annotation> annotationType,
final String methodName,
final boolean requiresReply) {
Map<String, Map<Class<?>, HandlerMethod>> handlerMethods =
new HashMap<String, Map<Class<?>, HandlerMethod>>();
final Map<Class<?>, HandlerMethod> candidateMethods = new HashMap<Class<?>, HandlerMethod>();
final Map<Class<?>, HandlerMethod> candidateMessageMethods =
new HashMap<Class<?>, HandlerMethod>();
final Map<Class<?>, HandlerMethod> fallbackMethods = new HashMap<Class<?>, HandlerMethod>();
final Map<Class<?>, HandlerMethod> fallbackMessageMethods =
new HashMap<Class<?>, HandlerMethod>();
final AtomicReference<Class<?>> ambiguousFallbackType = new AtomicReference<Class<?>>();
final AtomicReference<Class<?>> ambiguousFallbackMessageGenericType =
new AtomicReference<Class<?>>();
final Class<?> targetClass = this.getTargetClass(targetObject);
MethodFilter methodFilter = new UniqueMethodFilter(targetClass);
ReflectionUtils.doWithMethods(
targetClass,
new MethodCallback() {
@Override
public void doWith(Method method)
throws IllegalArgumentException, IllegalAccessException {
boolean matchesAnnotation = false;
if (method.isBridge()) {
return;
}
if (isMethodDefinedOnObjectClass(method)) {
return;
}
if (method.getDeclaringClass().equals(Proxy.class)) {
return;
}
if (!Modifier.isPublic(method.getModifiers())) {
return;
}
if (requiresReply && void.class.equals(method.getReturnType())) {
return;
}
if (methodName != null && !methodName.equals(method.getName())) {
return;
}
if (annotationType != null
&& AnnotationUtils.findAnnotation(method, annotationType) != null) {
matchesAnnotation = true;
}
HandlerMethod handlerMethod = null;
try {
handlerMethod = new HandlerMethod(method, canProcessMessageList);
} catch (IneligibleMethodException e) {
if (logger.isDebugEnabled()) {
logger.debug(
"Method ["
+ method
+ "] is not eligible for Message handling "
+ e.getMessage()
+ ".");
}
return;
} catch (Exception e) {
if (logger.isDebugEnabled()) {
logger.debug("Method [" + method + "] is not eligible for Message handling.", e);
}
return;
}
Class<?> targetParameterType = handlerMethod.getTargetParameterType();
if (matchesAnnotation || annotationType == null) {
if (handlerMethod.isMessageMethod()) {
if (candidateMessageMethods.containsKey(targetParameterType)) {
throw new IllegalArgumentException(
"Found more than one method match for type "
+ "[Message<"
+ targetParameterType
+ ">]");
}
candidateMessageMethods.put(targetParameterType, handlerMethod);
} else {
if (candidateMethods.containsKey(targetParameterType)) {
String exceptionMessage = "Found more than one method match for ";
if (Void.class.equals(targetParameterType)) {
exceptionMessage += "empty parameter for 'payload'";
} else {
exceptionMessage += "type [" + targetParameterType + "]";
}
throw new IllegalArgumentException(exceptionMessage);
}
candidateMethods.put(targetParameterType, handlerMethod);
}
} else {
if (handlerMethod.isMessageMethod()) {
if (fallbackMessageMethods.containsKey(targetParameterType)) {
// we need to check for duplicate type matches,
// but only if we end up falling back
// and we'll only keep track of the first one
ambiguousFallbackMessageGenericType.compareAndSet(null, targetParameterType);
}
fallbackMessageMethods.put(targetParameterType, handlerMethod);
} else {
if (fallbackMethods.containsKey(targetParameterType)) {
// we need to check for duplicate type matches,
// but only if we end up falling back
// and we'll only keep track of the first one
ambiguousFallbackType.compareAndSet(null, targetParameterType);
}
fallbackMethods.put(targetParameterType, handlerMethod);
}
}
}
},
methodFilter);
if (!candidateMethods.isEmpty() || !candidateMessageMethods.isEmpty()) {
handlerMethods.put(CANDIDATE_METHODS, candidateMethods);
handlerMethods.put(CANDIDATE_MESSAGE_METHODS, candidateMessageMethods);
return handlerMethods;
}
if ((ambiguousFallbackType.get() != null || ambiguousFallbackMessageGenericType.get() != null)
&& ServiceActivator.class.equals(annotationType)) {
/*
* When there are ambiguous fallback methods,
* a Service Activator can finally fallback to RequestReplyExchanger.exchange(m).
* Ambiguous means > 1 method that takes the same payload type, or > 1 method
* that takes a Message with the same generic type.
*/
List<Method> frameworkMethods = new ArrayList<Method>();
Class<?>[] allInterfaces =
org.springframework.util.ClassUtils.getAllInterfacesForClass(targetClass);
for (Class<?> iface : allInterfaces) {
try {
if ("org.springframework.integration.gateway.RequestReplyExchanger"
.equals(iface.getName())) {
frameworkMethods.add(targetClass.getMethod("exchange", Message.class));
if (logger.isDebugEnabled()) {
logger.debug(
targetObject.getClass()
+ ": Ambiguous fallback methods; using RequestReplyExchanger.exchange()");
}
}
} catch (Exception e) {
// should never happen (but would fall through to errors below)
}
}
if (frameworkMethods.size() == 1) {
HandlerMethod handlerMethod =
new HandlerMethod(frameworkMethods.get(0), canProcessMessageList);
handlerMethods.put(
CANDIDATE_METHODS,
Collections.<Class<?>, HandlerMethod>singletonMap(Object.class, handlerMethod));
handlerMethods.put(CANDIDATE_MESSAGE_METHODS, candidateMessageMethods);
return handlerMethods;
}
}
try {
Assert.state(
!fallbackMethods.isEmpty() || !fallbackMessageMethods.isEmpty(),
"Target object of type ["
+ this.targetObject.getClass()
+ "] has no eligible methods for handling Messages.");
} catch (Exception e) {
// TODO backward compatibility
throw new IllegalArgumentException(e.getMessage());
}
Assert.isNull(
ambiguousFallbackType.get(),
"Found ambiguous parameter type ["
+ ambiguousFallbackType
+ "] for method match: "
+ fallbackMethods.values());
Assert.isNull(
ambiguousFallbackMessageGenericType.get(),
"Found ambiguous parameter type ["
+ ambiguousFallbackMessageGenericType
+ "] for method match: "
+ fallbackMethods.values());
handlerMethods.put(CANDIDATE_METHODS, fallbackMethods);
handlerMethods.put(CANDIDATE_MESSAGE_METHODS, fallbackMessageMethods);
return handlerMethods;
}
public Object postProcessAfterInitialization(final Object bean, final String beanName)
throws BeansException {
// first sift through and get all the methods
// then get all the annotations
// then build the metadata and register the metadata
final Class<?> targetClass = AopUtils.getTargetClass(bean);
final org.activiti.spring.annotations.ActivitiComponent component =
targetClass.getAnnotation(org.activiti.spring.annotations.ActivitiComponent.class);
ReflectionUtils.doWithMethods(
targetClass,
new ReflectionUtils.MethodCallback() {
@SuppressWarnings("unchecked")
public void doWith(Method method)
throws IllegalArgumentException, IllegalAccessException {
State state = AnnotationUtils.getAnnotation(method, State.class);
String processName = component.processKey();
if (StringUtils.hasText(state.process())) {
processName = state.process();
}
String stateName = state.state();
if (!StringUtils.hasText(stateName)) {
stateName = state.value();
}
Assert.notNull(stateName, "You must provide a stateName!");
Map<Integer, String> vars = new HashMap<Integer, String>();
Annotation[][] paramAnnotationsArray = method.getParameterAnnotations();
int ctr = 0;
int pvMapIndex = -1;
int procIdIndex = -1;
for (Annotation[] paramAnnotations : paramAnnotationsArray) {
ctr += 1;
for (Annotation pa : paramAnnotations) {
if (pa instanceof ProcessVariable) {
ProcessVariable pv = (ProcessVariable) pa;
String pvName = pv.value();
vars.put(ctr, pvName);
} else if (pa instanceof ProcessVariables) {
pvMapIndex = ctr;
} else if (pa instanceof ProcessId) {
procIdIndex = ctr;
}
}
}
ActivitiStateHandlerRegistration registration =
new ActivitiStateHandlerRegistration(
vars, method, bean, stateName, beanName, pvMapIndex, procIdIndex, processName);
registry.registerActivitiStateHandler(registration);
}
},
new ReflectionUtils.MethodFilter() {
public boolean matches(Method method) {
return null != AnnotationUtils.getAnnotation(method, State.class);
}
});
return bean;
}
private void createChannels(Class<?> type) throws Exception {
ReflectionUtils.doWithMethods(
type,
new ReflectionUtils.MethodCallback() {
@Override
public void doWith(Method method)
throws IllegalArgumentException, IllegalAccessException {
Input input = AnnotationUtils.findAnnotation(method, Input.class);
if (input != null) {
String name = BindingBeanDefinitionRegistryUtils.getChannelName(input, method);
Class<?> inputChannelType = method.getReturnType();
MessageChannel sharedChannel = locateSharedChannel(name);
if (sharedChannel == null) {
MessageChannel inputChannel = createMessageChannel(inputChannelType);
inputs.put(name, new ChannelHolder(inputChannel, true));
} else {
if (inputChannelType.isAssignableFrom(sharedChannel.getClass())) {
inputs.put(name, new ChannelHolder(sharedChannel, false));
} else {
// handle the special case where the shared channel is of a different nature
// (i.e. pollable vs subscribable) than the target channel
final MessageChannel inputChannel = createMessageChannel(inputChannelType);
if (isPollable(sharedChannel.getClass())) {
bridgePollableToSubscribableChannel(sharedChannel, inputChannel);
} else {
bridgeSubscribableToPollableChannel(
(SubscribableChannel) sharedChannel, inputChannel);
}
inputs.put(name, new ChannelHolder(inputChannel, false));
}
}
}
Output output = AnnotationUtils.findAnnotation(method, Output.class);
if (output != null) {
String name = BindingBeanDefinitionRegistryUtils.getChannelName(output, method);
Class<?> messageChannelType = method.getReturnType();
MessageChannel sharedChannel = locateSharedChannel(name);
if (sharedChannel == null) {
MessageChannel outputChannel = createMessageChannel(messageChannelType);
outputs.put(name, new ChannelHolder(outputChannel, true));
} else {
if (messageChannelType.isAssignableFrom(sharedChannel.getClass())) {
outputs.put(name, new ChannelHolder(sharedChannel, false));
} else {
// handle the special case where the shared channel is of a different nature
// (i.e. pollable vs subscribable) than the target channel
final MessageChannel outputChannel = createMessageChannel(messageChannelType);
if (isPollable(messageChannelType)) {
bridgePollableToSubscribableChannel(outputChannel, sharedChannel);
} else {
bridgeSubscribableToPollableChannel(
(SubscribableChannel) outputChannel, sharedChannel);
}
outputs.put(name, new ChannelHolder(outputChannel, false));
}
}
}
}
});
}