com.sun.faces.config.processor.AbstractConfigProcessor Maven / Gradle / Ivy
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 1997-2010 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package com.sun.faces.config.processor;
import com.sun.faces.application.ApplicationAssociate;
import com.sun.faces.application.ApplicationResourceBundle;
import com.sun.faces.application.ApplicationInstanceFactoryMetadataMap;
import com.sun.faces.application.annotation.AnnotationManager;
import com.sun.faces.config.ConfigurationException;
import com.sun.faces.config.WebConfiguration;
import com.sun.faces.config.ConfigManager;
import com.sun.faces.config.DocumentInfo;
import com.sun.faces.config.WebConfiguration.WebContextInitParameter;
import com.sun.faces.util.ReflectionUtils;
import com.sun.faces.util.Util;
import com.sun.faces.scripting.groovy.RendererProxy;
import com.sun.faces.scripting.groovy.NavigationHandlerProxy;
import com.sun.faces.scripting.groovy.ELResolverProxy;
import com.sun.faces.scripting.groovy.PhaseListenerProxy;
import com.sun.faces.scripting.groovy.ViewHandlerProxy;
import com.sun.faces.scripting.groovy.ActionListenerProxy;
import com.sun.faces.spi.InjectionProvider;
import com.sun.faces.spi.InjectionProviderException;
import com.sun.faces.util.FacesLogger;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import javax.faces.FactoryFinder;
import javax.faces.context.FacesContext;
import javax.faces.event.ActionListener;
import javax.faces.event.PhaseListener;
import javax.faces.render.Renderer;
import javax.faces.application.Application;
import javax.faces.application.ApplicationFactory;
import javax.faces.application.NavigationHandler;
import javax.faces.application.ViewHandler;
import javax.el.ELResolver;
import javax.servlet.ServletContext;
import java.lang.reflect.Constructor;
import java.lang.annotation.Annotation;
import java.text.MessageFormat;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.faces.FacesException;
import javax.faces.application.ProjectStage;
/**
*
* This is the base ConfigProcessor that all concrete
* ConfigProcessor implementations should extend.
*
*/
public abstract class AbstractConfigProcessor implements ConfigProcessor {
private ConfigProcessor nextProcessor;
private ApplicationInstanceFactoryMetadataMap classMetadataMap = null;
private static final Logger LOGGER = FacesLogger.CONFIG.getLogger();
private ProjectStage projectStage;
// -------------------------------------------- Methods from ConfigProcessor
public AbstractConfigProcessor() {
classMetadataMap = new ApplicationInstanceFactoryMetadataMap(new ConcurrentHashMap());
}
/**
* @see ConfigProcessor#setNext(ConfigProcessor)
*/
public void setNext(ConfigProcessor nextProcessor) {
this.nextProcessor = nextProcessor;
}
/**
* @see ConfigProcessor#invokeNext(javax.servlet.ServletContext,com.sun.faces.config.DocumentInfo[])
*/
public void invokeNext(ServletContext sc, DocumentInfo[] documentInfos)
throws Exception {
if (nextProcessor != null) {
nextProcessor.process(sc, documentInfos);
}
}
// ------------------------------------------------------- Protected Methods
/**
* @return return the Application instance for this context.
*/
protected Application getApplication() {
ApplicationFactory afactory = (ApplicationFactory)
FactoryFinder.getFactory(FactoryFinder.APPLICATION_FACTORY);
return afactory.getApplication();
}
/**
* Return the text of the specified Node,
* if any.
* @param node the Node
* @return the text of the Node If the length
* of the text is zero, this method will return null
*/
protected String getNodeText(Node node) {
String res = null;
if (node != null) {
res = node.getTextContent();
if (res != null) {
res = res.trim();
}
}
return ((res != null && res.length() != 0) ? res : null);
}
/**
* @return a Map of of textual values keyed off the values
* of any lang or xml:lang attributes specified on an attribute. If no
* such attribute exists, then the key {@link ApplicationResourceBundle#DEFAULT_KEY}
* will be used (i.e. this represents the default Locale).
* @param list a list of nodes representing textual elements such as
* description or display-name
*/
protected Map getTextMap(List list) {
if (list != null && !list.isEmpty()) {
int len = list.size();
HashMap names =
new HashMap(len, 1.0f);
for (int i = 0; i < len; i++) {
Node node = list.get(i);
String textValue = getNodeText(node);
if (textValue != null) {
if (node.hasAttributes()) {
NamedNodeMap attributes = node
.getAttributes();
String lang
= getNodeText(attributes.getNamedItem(
"lang"));
if (lang == null) {
lang =
getNodeText(attributes.getNamedItem(
"xml:lang"));
}
if (lang != null) {
names.put(lang, textValue);
} else {
names.put(ApplicationResourceBundle.DEFAULT_KEY,
textValue);
}
} else {
names.put(ApplicationResourceBundle.DEFAULT_KEY,
textValue);
}
}
}
return names;
}
return null;
}
protected Class findRootType(String source,
Node sourceNode,
Class[] ctorArguments) {
try {
Class sourceClass = loadClass(source, this, null);
for (Class ctorArg : ctorArguments) {
if (ReflectionUtils.lookupConstructor(sourceClass, ctorArg) != null) {
return ctorArg;
}
}
} catch (ClassNotFoundException cnfe) {
throw new ConfigurationException(
buildMessage(MessageFormat.format("Unable to find class ''{0}''",
source), sourceNode),
cnfe);
}
return null;
}
protected Object createInstance(String className, Node source) {
return createInstance(className, null, null, source);
}
protected Object createInstance(String className,
Class rootType,
Object root,
Node source) {
Class clazz;
Object returnObject = null;
if (className != null) {
try {
clazz = loadClass(className, returnObject, null);
if (clazz != null) {
if (isDevModeEnabled()) {
Class[] interfaces = clazz.getInterfaces();
if (interfaces != null) {
for (Class c : interfaces) {
if ("groovy.lang.GroovyObject".equals(c.getName())) {
// all groovy classes will implement this interface
returnObject = createScriptProxy(rootType, className, root);
break;
}
}
}
}
if (returnObject == null) {
// Look for an adapter constructor if we've got
// an object to adapt
if ((rootType != null) && (root != null)) {
Constructor construct =
ReflectionUtils.lookupConstructor(
clazz,
rootType);
if (construct != null) {
returnObject = construct.newInstance(root);
}
}
}
if (clazz != null && returnObject == null) {
returnObject = clazz.newInstance();
}
if (classMetadataMap.hasAnnotations(className)) {
InjectionProvider injectionProvider = (InjectionProvider) FacesContext.getCurrentInstance().getAttributes().get(ConfigManager.INJECTION_PROVIDER_KEY);
try {
injectionProvider.invokePostConstruct(returnObject);
} catch (InjectionProviderException ex) {
LOGGER.log(Level.SEVERE, "Unable to invoke @PostConstruct annotated method on instance " + className, ex);
throw new FacesException(ex);
}
try {
injectionProvider.inject(returnObject);
} catch (InjectionProviderException ex) {
LOGGER.log(Level.SEVERE, "Unable to inject instance" + className, ex);
throw new FacesException(ex);
}
}
}
} catch (ClassNotFoundException cnfe) {
throw new ConfigurationException(
buildMessage(MessageFormat.format("Unable to find class ''{0}''",
className),
source),
cnfe);
} catch (NoClassDefFoundError ncdfe) {
throw new ConfigurationException(
buildMessage(MessageFormat.format("Class ''{0}'' is missing a runtime dependency: {1}",
className,
ncdfe.toString()),
source),
ncdfe);
} catch (ClassCastException cce) {
throw new ConfigurationException(
buildMessage(MessageFormat.format("Class ''{0}'' is not an instance of ''{1}''",
className,
rootType),
source),
cce);
} catch (Exception e) {
throw new ConfigurationException(
buildMessage(MessageFormat.format("Unable to create a new instance of ''{0}'': {1}",
className,
e.toString()),
source), e);
}
}
return returnObject;
}
protected Class loadClass(String className,
Object fallback,
Class expectedType)
throws ClassNotFoundException {
Class clazz = (Class) classMetadataMap.get(className);
if (null == clazz) {
try {
clazz = Util.loadClass(className, fallback);
if (!this.isDevModeEnabled()) {
classMetadataMap.put(className, clazz);
} else {
classMetadataMap.scanForAnnotations(className, clazz);
}
assert (clazz != null);
} catch (Exception e) {
throw new FacesException(e.getMessage(), e);
}
}
if (expectedType != null && !expectedType.isAssignableFrom(clazz)) {
throw new ClassCastException();
}
return clazz;
}
protected void processAnnotations(Class annotationType) {
FacesContext ctx = FacesContext.getCurrentInstance();
ApplicationAssociate associate =
ApplicationAssociate.getInstance(ctx.getExternalContext());
AnnotationManager manager = associate.getAnnotationManager();
manager.applyConfigAnnotations(ctx,
annotationType,
ConfigManager.getAnnotatedClasses(ctx).get(annotationType));
}
// --------------------------------------------------------- Private Methods
private String buildMessage(String cause, Node source) {
return MessageFormat.format("\n Source Document: {0}\n Cause: {1}",
source.getOwnerDocument().getDocumentURI(),
cause);
}
private Object createScriptProxy(Class artifactType,
String scriptName,
Object root) {
if (Renderer.class.equals(artifactType)) {
return new RendererProxy(scriptName);
} else if (PhaseListener.class.equals(artifactType)) {
return new PhaseListenerProxy(scriptName);
} else if (ViewHandler.class.equals(artifactType)) {
return new ViewHandlerProxy(scriptName, (ViewHandler) root);
} else if (NavigationHandler.class.equals(artifactType)) {
return new NavigationHandlerProxy(scriptName, (NavigationHandler) root);
} else if (ActionListener.class.equals(artifactType)) {
return new ActionListenerProxy(scriptName, (ActionListener) root);
} else if (ELResolver.class.equals(artifactType)) {
return new ELResolverProxy(scriptName);
} else {
return null;
}
}
private boolean isDevModeEnabled() {
return getProjectStage().equals(ProjectStage.Development);
}
private ProjectStage getProjectStage() {
if (projectStage == null) {
WebConfiguration webConfig =
WebConfiguration.getInstance(
FacesContext.getCurrentInstance().getExternalContext());
String value = webConfig.getEnvironmentEntry(WebConfiguration.WebEnvironmentEntry.ProjectStage);
if (value != null) {
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE,
"ProjectStage configured via JNDI: {0}",
value);
}
} else {
value = webConfig.getOptionValue(WebContextInitParameter.JavaxFacesProjectStage);
if (value != null) {
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE,
"ProjectStage configured via servlet context init parameter: {0}",
value);
}
}
}
if (value != null) {
try {
projectStage = ProjectStage.valueOf(value);
} catch (IllegalArgumentException iae) {
if (LOGGER.isLoggable(Level.INFO)) {
LOGGER.log(Level.INFO,
"Unable to discern ProjectStage for value {0}.",
value);
}
}
}
if (projectStage == null) {
projectStage = ProjectStage.Production;
}
}
return projectStage;
}
}