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org.apache.cxf.jaxrs.model.AbstractResourceInfo Maven / Gradle / Ivy
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.cxf.jaxrs.model;
import java.lang.annotation.Annotation;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.annotation.Resource;
import javax.ws.rs.core.Application;
import javax.ws.rs.core.Context;
import org.apache.cxf.jaxrs.impl.tl.ThreadLocalProxy;
import org.apache.cxf.jaxrs.utils.AnnotationUtils;
import org.apache.cxf.jaxrs.utils.InjectionUtils;
public abstract class AbstractResourceInfo {
private static Map, List> contextFields;
private static Map, List> resourceFields;
private static Map, Map, Method>> contextMethods;
private static Map, Map> fieldProxyMap;
private static Map, Map> resourceProxyMap;
private static Map, Map> setterProxyMap;
protected boolean root;
protected Class resourceClass;
protected Class serviceClass;
protected AbstractResourceInfo() {
}
protected AbstractResourceInfo(Class resourceClass, Class serviceClass, boolean isRoot) {
this.serviceClass = serviceClass;
this.resourceClass = resourceClass;
root = isRoot;
if (root && resourceClass != null) {
findContextFields(serviceClass);
findContextSetterMethods(serviceClass);
}
}
public void setResourceClass(Class rClass) {
resourceClass = rClass;
if (serviceClass.isInterface() && resourceClass != null && !resourceClass.isInterface()) {
findContextFields(resourceClass);
findContextSetterMethods(resourceClass);
}
}
public Class getServiceClass() {
return serviceClass;
}
private void findContextFields(Class cls) {
if (cls == Object.class || cls == null) {
return;
}
for (Field f : cls.getDeclaredFields()) {
for (Annotation a : f.getAnnotations()) {
if (a.annotationType() == Context.class) {
contextFields = addContextField(contextFields, f);
if (f.getType() != Application.class) {
fieldProxyMap = getProxyMap(Field.class, fieldProxyMap);
addToMap(fieldProxyMap, f, InjectionUtils.createThreadLocalProxy(f.getType()));
}
} else if (a.annotationType() == Resource.class
&& AnnotationUtils.isContextClass(f.getType())) {
resourceFields = addContextField(resourceFields, f);
resourceProxyMap = getProxyMap(Field.class, resourceProxyMap);
addToMap(resourceProxyMap, f, InjectionUtils.createThreadLocalProxy(f.getType()));
}
}
}
findContextFields(cls.getSuperclass());
}
private Map, Map> getProxyMap(Class keyClass,
Map, Map> map) {
return map == null ? new HashMap, Map>() : map;
}
private void findContextSetterMethods(Class cls) {
for (Method m : cls.getMethods()) {
if (!m.getName().startsWith("set") || m.getParameterTypes().length != 1) {
continue;
}
for (Annotation a : m.getAnnotations()) {
if (a.annotationType() == Context.class) {
checkContextMethod(m);
break;
}
}
}
Class[] interfaces = cls.getInterfaces();
for (Class i : interfaces) {
findContextSetterMethods(i);
}
}
private void checkContextMethod(Method m) {
Class type = m.getParameterTypes()[0];
if (AnnotationUtils.isContextClass(type)
&& m.getName().equals("set" + type.getSimpleName())) {
addContextMethod(type, m);
}
}
@SuppressWarnings("unchecked")
public Map, Method> getContextMethods() {
Map, Method> methods = contextMethods == null ? null : contextMethods.get(getServiceClass());
return methods == null ? Collections.EMPTY_MAP
: Collections.unmodifiableMap(methods);
}
private void addContextMethod(Class contextClass, Method m) {
if (contextMethods == null) {
contextMethods = new HashMap, Map, Method>>();
}
addToMap(contextMethods, contextClass, m);
if (m.getParameterTypes()[0] != Application.class) {
setterProxyMap = getProxyMap(Method.class, setterProxyMap);
addToMap(setterProxyMap, m,
InjectionUtils.createThreadLocalProxy(m.getParameterTypes()[0]));
}
}
public boolean isRoot() {
return root;
}
public Class getResourceClass() {
return resourceClass;
}
public List getContextFields() {
return getList(contextFields);
}
public List getResourceFields() {
return getList(resourceFields);
}
public ThreadLocalProxy getContextFieldProxy(Field f) {
return getProxy(fieldProxyMap, f);
}
public ThreadLocalProxy getResourceFieldProxy(Field f) {
return getProxy(resourceProxyMap, f);
}
public ThreadLocalProxy getContextSetterProxy(Method m) {
return getProxy(setterProxyMap, m);
}
public abstract boolean isSingleton();
public void clearThreadLocalProxies() {
clearProxies(fieldProxyMap);
clearProxies(resourceProxyMap);
clearProxies(setterProxyMap);
}
private void clearProxies(Map, Map> tlps) {
Map proxies = tlps == null ? null : tlps.get(getServiceClass());
if (proxies == null) {
return;
}
for (ThreadLocalProxy tlp : proxies.values()) {
if (tlp != null) {
tlp.remove();
}
}
}
private Map, List> addContextField(Map, List> theFields, Field f) {
theFields = theFields == null ? new HashMap, List>() : theFields;
List fields = theFields.get(serviceClass);
if (fields == null) {
fields = new ArrayList();
theFields.put(serviceClass, fields);
}
if (!fields.contains(f)) {
fields.add(f);
}
return theFields;
}
private void addToMap(Map, Map> theFields,
T f, V proxy) {
Map proxies = theFields.get(serviceClass);
if (proxies == null) {
proxies = new HashMap();
theFields.put(serviceClass, proxies);
}
if (!proxies.containsKey(f)) {
proxies.put(f, proxy);
}
}
private List getList(Map, List> fields) {
List ret = fields == null ? null : fields.get(getServiceClass());
if (ret != null) {
ret = Collections.unmodifiableList(ret);
} else {
ret = Collections.emptyList();
}
return ret;
}
private ThreadLocalProxy getProxy(Map, Map> proxies, T key) {
Map theMap = proxies == null ? null : proxies.get(getServiceClass());
return theMap != null ? theMap.get(key) : null;
}
}
