org.apache.catalina.startup.WebAnnotationSet Maven / Gradle / Ivy
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* 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.catalina.startup;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.security.AccessController;
import java.security.PrivilegedAction;
import javax.annotation.Resource;
import javax.annotation.Resources;
import javax.annotation.security.DeclareRoles;
import javax.annotation.security.RunAs;
import org.apache.catalina.Container;
import org.apache.catalina.Context;
import org.apache.catalina.Globals;
import org.apache.catalina.Wrapper;
import org.apache.catalina.core.DefaultInstanceManager;
import org.apache.catalina.deploy.ContextEnvironment;
import org.apache.catalina.deploy.ContextResource;
import org.apache.catalina.deploy.ContextResourceEnvRef;
import org.apache.catalina.deploy.ContextService;
import org.apache.catalina.deploy.FilterDef;
import org.apache.catalina.deploy.MessageDestinationRef;
/**
* AnnotationSet for processing the annotations of the web application
* classes (/WEB-INF/classes and /WEB-INF/lib).
*
* @author Fabien Carrion
* @version $Id: WebAnnotationSet.java 1305971 2012-03-27 19:27:39Z markt $
*/
public class WebAnnotationSet {
private static final String SEPARATOR = "/";
// --------------------------------------------------------- Public Methods
/**
* Process the annotations on a context.
*/
public static void loadApplicationAnnotations(Context context) {
loadApplicationListenerAnnotations(context);
loadApplicationFilterAnnotations(context);
loadApplicationServletAnnotations(context);
}
// -------------------------------------------------------- protected Methods
/**
* Process the annotations for the listeners.
*/
protected static void loadApplicationListenerAnnotations(Context context) {
Class classClass = null;
String[] applicationListeners = context.findApplicationListeners();
for (int i = 0; i < applicationListeners.length; i++) {
classClass = loadClass(context, applicationListeners[i]);
if (classClass == null) {
continue;
}
loadClassAnnotation(context, classClass);
loadFieldsAnnotation(context, classClass);
loadMethodsAnnotation(context, classClass);
}
}
/**
* Process the annotations for the filters.
*/
protected static void loadApplicationFilterAnnotations(Context context) {
Class classClass = null;
FilterDef[] filterDefs = context.findFilterDefs();
for (int i = 0; i < filterDefs.length; i++) {
classClass = loadClass(context, (filterDefs[i]).getFilterClass());
if (classClass == null) {
continue;
}
loadClassAnnotation(context, classClass);
loadFieldsAnnotation(context, classClass);
loadMethodsAnnotation(context, classClass);
}
}
/**
* Process the annotations for the servlets.
*/
protected static void loadApplicationServletAnnotations(Context context) {
Wrapper wrapper = null;
Class classClass = null;
Container[] children = context.findChildren();
for (int i = 0; i < children.length; i++) {
if (children[i] instanceof Wrapper) {
wrapper = (Wrapper) children[i];
if (wrapper.getServletClass() == null) {
continue;
}
classClass = loadClass(context, wrapper.getServletClass());
if (classClass == null) {
continue;
}
loadClassAnnotation(context, classClass);
loadFieldsAnnotation(context, classClass);
loadMethodsAnnotation(context, classClass);
/* Process RunAs annotation which can be only on servlets.
* Ref JSR 250, equivalent to the run-as element in
* the deployment descriptor
*/
if (classClass.isAnnotationPresent(RunAs.class)) {
RunAs annotation = classClass.getAnnotation(RunAs.class);
wrapper.setRunAs(annotation.value());
}
}
}
}
/**
* Process the annotations on a context for a given className.
*/
protected static void loadClassAnnotation(Context context,
Class classClass) {
// Initialize the annotations
if (classClass.isAnnotationPresent(Resource.class)) {
Resource annotation = classClass.getAnnotation(Resource.class);
addResource(context, annotation);
}
/* Process Resources annotation.
* Ref JSR 250
*/
if (classClass.isAnnotationPresent(Resources.class)) {
Resources annotation = classClass.getAnnotation(Resources.class);
for (int i = 0; annotation.value() != null && i < annotation.value().length; i++) {
addResource(context, annotation.value()[i]);
}
}
/* Process EJB annotation.
* Ref JSR 224, equivalent to the ejb-ref or ejb-local-ref
* element in the deployment descriptor.
if (classClass.isAnnotationPresent(EJB.class)) {
EJB annotation = (EJB)
classClass.getAnnotation(EJB.class);
if ((annotation.mappedName().length() == 0) ||
annotation.mappedName().equals("Local")) {
ContextLocalEjb ejb = new ContextLocalEjb();
ejb.setName(annotation.name());
ejb.setType(annotation.beanInterface().getCanonicalName());
ejb.setDescription(annotation.description());
ejb.setHome(annotation.beanName());
context.getNamingResources().addLocalEjb(ejb);
} else if (annotation.mappedName().equals("Remote")) {
ContextEjb ejb = new ContextEjb();
ejb.setName(annotation.name());
ejb.setType(annotation.beanInterface().getCanonicalName());
ejb.setDescription(annotation.description());
ejb.setHome(annotation.beanName());
context.getNamingResources().addEjb(ejb);
}
}
*/
/* Process WebServiceRef annotation.
* Ref JSR 224, equivalent to the service-ref element in
* the deployment descriptor.
* The service-ref registration is not implemented
if (classClass.isAnnotationPresent(WebServiceRef.class)) {
WebServiceRef annotation = (WebServiceRef)
classClass.getAnnotation(WebServiceRef.class);
ContextService service = new ContextService();
service.setName(annotation.name());
service.setWsdlfile(annotation.wsdlLocation());
service.setType(annotation.type().getCanonicalName());
if (annotation.value() == null)
service.setServiceinterface(annotation.type().getCanonicalName());
if (annotation.type().getCanonicalName().equals("Service"))
service.setServiceinterface(annotation.type().getCanonicalName());
if (annotation.value().getCanonicalName().equals("Endpoint"))
service.setServiceendpoint(annotation.type().getCanonicalName());
service.setPortlink(annotation.type().getCanonicalName());
context.getNamingResources().addService(service);
}
*/
/* Process DeclareRoles annotation.
* Ref JSR 250, equivalent to the security-role element in
* the deployment descriptor
*/
if (classClass.isAnnotationPresent(DeclareRoles.class)) {
DeclareRoles annotation =
classClass.getAnnotation(DeclareRoles.class);
for (int i = 0; annotation.value() != null && i < annotation.value().length; i++) {
context.addSecurityRole(annotation.value()[i]);
}
}
}
protected static void loadFieldsAnnotation(Context context,
Class classClass) {
// Initialize the annotations
Field[] fields = getDeclaredFields(classClass);
if (fields != null && fields.length > 0) {
for (Field field : fields) {
if (field.isAnnotationPresent(Resource.class)) {
Resource annotation = field.getAnnotation(Resource.class);
String defaultName =
classClass.getName() + SEPARATOR + field.getName();
String defaultType = field.getType().getCanonicalName();
addResource(context, annotation, defaultName, defaultType);
}
}
}
}
protected static void loadMethodsAnnotation(Context context,
Class classClass) {
// Initialize the annotations
Method[] methods = getDeclaredMethods(classClass);
if (methods != null && methods.length > 0) {
for (Method method : methods) {
if (method.isAnnotationPresent(Resource.class)) {
Resource annotation = method.getAnnotation(Resource.class);
checkBeanNamingConventions(method);
String defaultName = classClass.getName() + SEPARATOR +
DefaultInstanceManager.getName(method);
String defaultType =
(method.getParameterTypes()[0]).getCanonicalName();
addResource(context, annotation, defaultName, defaultType);
}
}
}
}
/**
* Process a Resource annotation to set up a Resource.
* Ref JSR 250, equivalent to the resource-ref,
* message-destination-ref, env-ref, resource-env-ref
* or service-ref element in the deployment descriptor.
*/
protected static void addResource(Context context, Resource annotation) {
addResource(context, annotation, null, null);
}
protected static void addResource(Context context, Resource annotation,
String defaultName, String defaultType) {
String name = getName(annotation, defaultName);
String type = getType(annotation, defaultType);
if (type.equals("java.lang.String") ||
type.equals("java.lang.Character") ||
type.equals("java.lang.Integer") ||
type.equals("java.lang.Boolean") ||
type.equals("java.lang.Double") ||
type.equals("java.lang.Byte") ||
type.equals("java.lang.Short") ||
type.equals("java.lang.Long") ||
type.equals("java.lang.Float")) {
// env-ref element
ContextEnvironment resource = new ContextEnvironment();
resource.setName(name);
resource.setType(type);
resource.setDescription(annotation.description());
resource.setValue(annotation.mappedName());
context.getNamingResources().addEnvironment(resource);
} else if (type.equals("javax.xml.rpc.Service")) {
// service-ref element
ContextService service = new ContextService();
service.setName(name);
service.setWsdlfile(annotation.mappedName());
service.setType(type);
service.setDescription(annotation.description());
context.getNamingResources().addService(service);
} else if (type.equals("javax.sql.DataSource") ||
type.equals("javax.jms.ConnectionFactory") ||
type.equals("javax.jms.QueueConnectionFactory") ||
type.equals("javax.jms.TopicConnectionFactory") ||
type.equals("javax.mail.Session") ||
type.equals("java.net.URL") ||
type.equals("javax.resource.cci.ConnectionFactory") ||
type.equals("org.omg.CORBA_2_3.ORB") ||
type.endsWith("ConnectionFactory")) {
// resource-ref element
ContextResource resource = new ContextResource();
resource.setName(name);
resource.setType(type);
if (annotation.authenticationType()
== Resource.AuthenticationType.CONTAINER) {
resource.setAuth("Container");
}
else if (annotation.authenticationType()
== Resource.AuthenticationType.APPLICATION) {
resource.setAuth("Application");
}
resource.setScope(annotation.shareable() ? "Shareable" : "Unshareable");
resource.setProperty("mappedName", annotation.mappedName());
resource.setDescription(annotation.description());
context.getNamingResources().addResource(resource);
} else if (type.equals("javax.jms.Queue") ||
type.equals("javax.jms.Topic")) {
// message-destination-ref
MessageDestinationRef resource = new MessageDestinationRef();
resource.setName(name);
resource.setType(type);
resource.setUsage(annotation.mappedName());
resource.setDescription(annotation.description());
context.getNamingResources().addMessageDestinationRef(resource);
} else if (type.equals("javax.resource.cci.InteractionSpec") ||
type.equals("javax.transaction.UserTransaction") ||
true) {
// resource-env-ref
ContextResourceEnvRef resource = new ContextResourceEnvRef();
resource.setName(name);
resource.setType(type);
resource.setProperty("mappedName", annotation.mappedName());
resource.setDescription(annotation.description());
context.getNamingResources().addResourceEnvRef(resource);
}
}
private static void checkBeanNamingConventions(Method method) {
if (!method.getName().startsWith("set")
|| method.getName().length() < 4
|| method.getParameterTypes().length != 1
|| !method.getReturnType().getName().equals("void")) {
throw new IllegalArgumentException("Invalid method resource injection annotation.");
}
}
private static String getType(Resource annotation, String defaultType) {
String type = annotation.type().getCanonicalName();
if (type == null || type.equals("java.lang.Object")) {
if (defaultType != null) {
type = defaultType;
}
}
return type;
}
private static String getName(Resource annotation, String defaultName) {
String name = annotation.name();
if (name == null || name.equals("")) {
if (defaultName != null) {
name = defaultName;
}
}
return name;
}
private static Field[] getDeclaredFields(Class classClass) {
Field[] fields = null;
if (Globals.IS_SECURITY_ENABLED) {
final Class clazz = classClass;
fields = AccessController.doPrivileged(
new PrivilegedAction(){
@Override
public Field[] run(){
return clazz.getDeclaredFields();
}
});
} else {
fields = classClass.getDeclaredFields();
}
return fields;
}
private static Method[] getDeclaredMethods(Class classClass) {
Method[] methods = null;
if (Globals.IS_SECURITY_ENABLED) {
final Class clazz = classClass;
methods = AccessController.doPrivileged(
new PrivilegedAction(){
@Override
public Method[] run(){
return clazz.getDeclaredMethods();
}
});
} else {
methods = classClass.getDeclaredMethods();
}
return methods;
}
private static Class loadClass(Context context, String fileString) {
ClassLoader classLoader = context.getLoader().getClassLoader();
Class classClass = null;
try {
classClass = classLoader.loadClass(fileString);
} catch (ClassNotFoundException e) {
// We do nothing
} catch (NoClassDefFoundError e) {
// We do nothing
}
return classClass;
}
}