/*
* Copyright 2012-2017 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.boot.actuate.endpoint;
import java.util.Collection;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import org.springframework.aop.support.AopUtils;
import org.springframework.beans.BeansException;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.web.method.HandlerMethod;
import org.springframework.web.servlet.handler.AbstractHandlerMethodMapping;
import org.springframework.web.servlet.handler.AbstractUrlHandlerMapping;
/**
* {@link Endpoint} to expose Spring MVC mappings.
*
* @author Dave Syer
* @author Andy Wilkinson
*/
@ConfigurationProperties(prefix = "endpoints.mappings")
public class RequestMappingEndpoint extends AbstractEndpoint<Map<String, Object>>
implements ApplicationContextAware {
private List<AbstractUrlHandlerMapping> handlerMappings = Collections.emptyList();
private List<AbstractHandlerMethodMapping<?>> methodMappings = Collections
.emptyList();
private ApplicationContext applicationContext;
public RequestMappingEndpoint() {
super("mappings");
}
@Override
public void setApplicationContext(ApplicationContext applicationContext)
throws BeansException {
this.applicationContext = applicationContext;
}
/**
* Set the handler mappings.
* @param handlerMappings the handler mappings
*/
public void setHandlerMappings(List<AbstractUrlHandlerMapping> handlerMappings) {
this.handlerMappings = handlerMappings;
}
/**
* Set the method mappings.
* @param methodMappings the method mappings
*/
public void setMethodMappings(List<AbstractHandlerMethodMapping<?>> methodMappings) {
this.methodMappings = methodMappings;
}
@Override
public Map<String, Object> invoke() {
Map<String, Object> result = new LinkedHashMap<>();
extractHandlerMappings(this.handlerMappings, result);
extractHandlerMappings(this.applicationContext, result);
extractMethodMappings(this.methodMappings, result);
extractMethodMappings(this.applicationContext, result);
return result;
}
@SuppressWarnings("rawtypes")
protected void extractMethodMappings(ApplicationContext applicationContext,
Map<String, Object> result) {
if (applicationContext != null) {
for (Entry<String, AbstractHandlerMethodMapping> bean : applicationContext
.getBeansOfType(AbstractHandlerMethodMapping.class).entrySet()) {
@SuppressWarnings("unchecked")
Map<?, HandlerMethod> methods = bean.getValue().getHandlerMethods();
for (Entry<?, HandlerMethod> method : methods.entrySet()) {
Map<String, String> map = new LinkedHashMap<>();
map.put("bean", bean.getKey());
map.put("method", method.getValue().toString());
result.put(method.getKey().toString(), map);
}
}
}
}
protected void extractHandlerMappings(ApplicationContext applicationContext,
Map<String, Object> result) {
if (applicationContext != null) {
Map<String, AbstractUrlHandlerMapping> mappings = applicationContext
.getBeansOfType(AbstractUrlHandlerMapping.class);
for (Entry<String, AbstractUrlHandlerMapping> mapping : mappings.entrySet()) {
Map<String, Object> handlers = getHandlerMap(mapping.getValue());
for (Entry<String, Object> handler : handlers.entrySet()) {
result.put(handler.getKey(),
Collections.singletonMap("bean", mapping.getKey()));
}
}
}
}
private Map<String, Object> getHandlerMap(AbstractUrlHandlerMapping mapping) {
if (AopUtils.isCglibProxy(mapping)) {
// If the AbstractUrlHandlerMapping is a cglib proxy we can't call
// the final getHandlerMap() method.
return Collections.emptyMap();
}
return mapping.getHandlerMap();
}
protected void extractHandlerMappings(
Collection<AbstractUrlHandlerMapping> handlerMappings,
Map<String, Object> result) {
for (AbstractUrlHandlerMapping mapping : handlerMappings) {
Map<String, Object> handlers = mapping.getHandlerMap();
for (Map.Entry<String, Object> entry : handlers.entrySet()) {
Class<? extends Object> handlerClass = entry.getValue().getClass();
result.put(entry.getKey(),
Collections.singletonMap("type", handlerClass.getName()));
}
}
}
protected void extractMethodMappings(
Collection<AbstractHandlerMethodMapping<?>> methodMappings,
Map<String, Object> result) {
for (AbstractHandlerMethodMapping<?> mapping : methodMappings) {
Map<?, HandlerMethod> methods = mapping.getHandlerMethods();
for (Map.Entry<?, HandlerMethod> entry : methods.entrySet()) {
result.put(String.valueOf(entry.getKey()), Collections
.singletonMap("method", String.valueOf(entry.getValue())));
}
}
}
}