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Apache CXF Runtime JAX-RS Frontend
/**
* 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 java.util.concurrent.ConcurrentHashMap;
import java.util.logging.Logger;
import javax.ws.rs.core.Application;
import javax.ws.rs.core.Context;
import org.apache.cxf.Bus;
import org.apache.cxf.BusFactory;
import org.apache.cxf.common.logging.LogUtils;
import org.apache.cxf.jaxrs.impl.tl.ThreadLocalProxy;
import org.apache.cxf.jaxrs.utils.InjectionUtils;
public abstract class AbstractResourceInfo {
public static final String CONSTRUCTOR_PROXY_MAP = "jaxrs-constructor-proxy-map";
private static final Logger LOG = LogUtils.getL7dLogger(AbstractResourceInfo.class);
private static final String FIELD_PROXY_MAP = "jaxrs-field-proxy-map";
private static final String SETTER_PROXY_MAP = "jaxrs-setter-proxy-map";
protected boolean root;
protected Class resourceClass;
protected Class serviceClass;
private Map, List> contextFields;
private Map, Map, Method>> contextMethods;
private Bus bus;
private boolean constructorProxiesAvailable;
private boolean contextsAvailable;
protected AbstractResourceInfo(Bus bus) {
this.bus = bus;
}
protected AbstractResourceInfo(Class resourceClass, Class serviceClass,
boolean isRoot, boolean checkContexts, Bus bus) {
this(resourceClass, serviceClass, isRoot, checkContexts, null, bus, null);
}
protected AbstractResourceInfo(Class resourceClass,
Class serviceClass,
boolean isRoot,
boolean checkContexts,
Map, ThreadLocalProxy> constructorProxies,
Bus bus,
Object provider) {
this.bus = bus;
this.serviceClass = serviceClass;
this.resourceClass = resourceClass;
root = isRoot;
if (checkContexts && resourceClass != null) {
findContexts(serviceClass, provider, constructorProxies);
}
}
private void findContexts(Class cls, Object provider,
Map, ThreadLocalProxy> constructorProxies) {
findContextFields(cls, provider);
findContextSetterMethods(cls, provider);
if (constructorProxies != null) {
Map, Map, ThreadLocalProxy>> proxies = getConstructorProxyMap(true);
proxies.put(serviceClass, constructorProxies);
constructorProxiesAvailable = true;
}
contextsAvailable = contextFields != null && !contextFields.isEmpty()
|| contextMethods != null && !contextMethods.isEmpty()
|| constructorProxiesAvailable;
}
public boolean contextsAvailable() {
return contextsAvailable;
}
public Bus getBus() {
return bus;
}
public void setResourceClass(Class rClass) {
resourceClass = rClass;
if (serviceClass.isInterface() && resourceClass != null && !resourceClass.isInterface()) {
findContexts(resourceClass, null, null);
}
}
public Class getServiceClass() {
return serviceClass;
}
private void findContextFields(Class cls, Object provider) {
if (cls == Object.class || cls == null) {
return;
}
for (Field f : cls.getDeclaredFields()) {
for (Annotation a : f.getAnnotations()) {
if (a.annotationType() == Context.class
&& (f.getType().isInterface() || f.getType() == Application.class)) {
contextFields = addContextField(contextFields, f);
checkContextClass(f.getType());
if (!InjectionUtils.VALUE_CONTEXTS.contains(f.getType().getName())) {
addToMap(getFieldProxyMap(true), f, getFieldThreadLocalProxy(f, provider));
}
}
}
}
findContextFields(cls.getSuperclass(), provider);
}
private static ThreadLocalProxy getFieldThreadLocalProxy(Field f, Object provider) {
if (provider != null) {
Object proxy = null;
synchronized (provider) {
try {
proxy = InjectionUtils.extractFieldValue(f, provider);
} catch (Throwable t) {
// continue
}
if (!(proxy instanceof ThreadLocalProxy)) {
proxy = InjectionUtils.createThreadLocalProxy(f.getType());
InjectionUtils.injectFieldValue(f, provider, proxy);
}
}
return (ThreadLocalProxy)proxy;
}
return InjectionUtils.createThreadLocalProxy(f.getType());
}
private static ThreadLocalProxy getMethodThreadLocalProxy(Method m, Object provider) {
if (provider != null) {
Object proxy = null;
synchronized (provider) {
try {
proxy = InjectionUtils.extractFromMethod(provider,
InjectionUtils.getGetterFromSetter(m),
false);
} catch (Throwable t) {
// continue
}
if (!(proxy instanceof ThreadLocalProxy)) {
proxy = InjectionUtils.createThreadLocalProxy(m.getParameterTypes()[0]);
InjectionUtils.injectThroughMethod(provider, m, proxy);
}
}
return (ThreadLocalProxy)proxy;
}
return InjectionUtils.createThreadLocalProxy(m.getParameterTypes()[0]);
}
@SuppressWarnings("unchecked")
private Map, Map>> getProxyMap(String prop, boolean create) {
Object property = null;
synchronized (bus) {
property = bus.getProperty(prop);
if (property == null && create) {
Map, Map>> map
= new ConcurrentHashMap, Map>>(2);
bus.setProperty(prop, map);
property = map;
}
}
return (Map, Map>>)property;
}
public Map, ThreadLocalProxy> getConstructorProxies() {
if (constructorProxiesAvailable) {
return getConstructorProxyMap(false).get(serviceClass);
}
return null;
}
@SuppressWarnings("unchecked")
private Map, Map, ThreadLocalProxy>> getConstructorProxyMap(boolean create) {
Object property = bus.getProperty(CONSTRUCTOR_PROXY_MAP);
if (property == null) {
Map, Map, ThreadLocalProxy>> map
= new ConcurrentHashMap, Map, ThreadLocalProxy>>(2);
bus.setProperty(CONSTRUCTOR_PROXY_MAP, map);
property = map;
}
return (Map, Map, ThreadLocalProxy>>)property;
}
private Map, Map>> getFieldProxyMap(boolean create) {
return getProxyMap(FIELD_PROXY_MAP, create);
}
private Map, Map>> getSetterProxyMap(boolean create) {
return getProxyMap(SETTER_PROXY_MAP, create);
}
private void findContextSetterMethods(Class cls, Object provider) {
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, provider);
break;
}
}
}
Class[] interfaces = cls.getInterfaces();
for (Class i : interfaces) {
findContextSetterMethods(i, provider);
}
Class superCls = cls.getSuperclass();
if (superCls != null && superCls != Object.class) {
findContextSetterMethods(superCls, provider);
}
}
private void checkContextMethod(Method m, Object provider) {
Class type = m.getParameterTypes()[0];
if (type.isInterface() || type == Application.class) {
checkContextClass(type);
addContextMethod(type, m, provider);
}
}
private void checkContextClass(Class type) {
if (!InjectionUtils.STANDARD_CONTEXT_CLASSES.contains(type.getName())) {
LOG.fine("Injecting a custom context " + type.getName()
+ ", ContextProvider is required for this type");
}
}
public Map, Method> getContextMethods() {
Map, Method> methods = contextMethods == null ? null : contextMethods.get(getServiceClass());
return methods == null ? Collections.emptyMap()
: Collections.unmodifiableMap(methods);
}
private void addContextMethod(Class contextClass, Method m, Object provider) {
if (contextMethods == null) {
contextMethods = new HashMap<>();
}
addToMap(contextMethods, contextClass, m);
if (!InjectionUtils.VALUE_CONTEXTS.contains(m.getParameterTypes()[0].getName())) {
addToMap(getSetterProxyMap(true), m, getMethodThreadLocalProxy(m, provider));
}
}
public boolean isRoot() {
return root;
}
public Class getResourceClass() {
return resourceClass;
}
public List getContextFields() {
return getList(contextFields);
}
public ThreadLocalProxy getContextFieldProxy(Field f) {
return getProxy(getFieldProxyMap(true), f);
}
public ThreadLocalProxy getContextSetterProxy(Method m) {
return getProxy(getSetterProxyMap(true), m);
}
public abstract boolean isSingleton();
@SuppressWarnings("rawtypes")
public static void clearAllMaps() {
Bus bus = BusFactory.getThreadDefaultBus(false);
if (bus != null) {
Object property = bus.getProperty(FIELD_PROXY_MAP);
if (property != null) {
((Map)property).clear();
}
property = bus.getProperty(SETTER_PROXY_MAP);
if (property != null) {
((Map)property).clear();
}
property = bus.getProperty(CONSTRUCTOR_PROXY_MAP);
if (property != null) {
((Map)property).clear();
}
}
}
public void clearThreadLocalProxies() {
clearProxies(getFieldProxyMap(false));
clearProxies(getSetterProxyMap(false));
clearProxies(getConstructorProxyMap(false));
}
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) {
if (theFields == null) {
theFields = new HashMap<>();
}
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> proxyMap,
T f,
V proxy) {
Map proxies = proxyMap.get(serviceClass);
if (proxies == null) {
proxies = new ConcurrentHashMap();
proxyMap.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());
ThreadLocalProxy ret = null;
if (theMap != null) {
ret = theMap.get(key);
}
return ret;
}
}