Glassfish example source code file (WebappLoader.java)
The Glassfish WebappLoader.java source code/*
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package org.apache.catalina.loader;
import org.apache.catalina.*;
import org.apache.catalina.core.StandardContext;
import org.apache.catalina.util.LifecycleSupport;
import org.apache.catalina.util.StringManager;
import org.apache.naming.resources.DirContextURLStreamHandler;
import org.apache.naming.resources.DirContextURLStreamHandlerFactory;
import org.apache.naming.resources.Resource;
import org.apache.tomcat.util.modeler.Registry;
import org.glassfish.web.loader.WebappClassLoader;
import javax.management.MBeanRegistration;
import javax.management.MBeanServer;
import javax.management.ObjectName;
import javax.naming.Binding;
import javax.naming.NameClassPair;
import javax.naming.NamingEnumeration;
import javax.naming.NamingException;
import javax.naming.directory.DirContext;
import javax.servlet.ServletContext;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;
import java.io.*;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLClassLoader;
import java.net.URLStreamHandlerFactory;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Classloader implementation which is specialized for handling web
* applications in the most efficient way, while being Catalina aware (all
* accesses to resources are made through the DirContext interface).
* This class loader supports detection of modified
* Java classes, which can be used to implement auto-reload support.
* <p>
* This class loader is configured by adding the pathnames of directories,
* JAR files, and ZIP files with the <code>addRepository() method,
* prior to calling <code>start(). When a new class is required,
* these repositories will be consulted first to locate the class. If it
* is not present, the system class loader will be used instead.
*
* @author Craig R. McClanahan
* @author Remy Maucherat
* @version $Revision: 1.10 $ $Date: 2007/05/05 05:32:09 $
*/
public class WebappLoader
implements Lifecycle, Loader, PropertyChangeListener, MBeanRegistration {
/**
* First load of the class.
*/
private static boolean first = true;
private static Logger log = Logger.getLogger(
WebappLoader.class.getName());
// --------------------------------------------------------- Constructors
/**
* Construct a new WebappLoader with no defined parent class loader
* (so that the actual parent will be the system class loader).
*/
public WebappLoader() {
this(null);
}
/**
* Construct a new WebappLoader with the specified class loader
* to be defined as the parent of the ClassLoader we ultimately create.
*
* @param parent The parent class loader
*/
public WebappLoader(ClassLoader parent) {
super();
this.parentClassLoader = parent;
}
// --------------------------------------------------- Instance Variables
private ObjectName oname;
private ObjectName controller;
/**
* The class loader being managed by this Loader component.
*/
private WebappClassLoader classLoader = null;
/**
* The Container with which this Loader has been associated.
*/
private Container container = null;
/**
* The debugging detail level for this component.
*/
private int debug = 0;
/**
* The DefaultContext with which this Loader is associated.
*/
protected DefaultContext defaultContext = null;
/**
* The "follow standard delegation model" flag that will be used to
* configure our ClassLoader.
*/
private boolean delegate = false;
/**
* The descriptive information about this Loader implementation.
*/
private static final String info =
"org.apache.catalina.loader.WebappLoader/1.0";
/**
* The lifecycle event support for this component.
*/
protected LifecycleSupport lifecycle = new LifecycleSupport(this);
/**
* The Java class name of the ClassLoader implementation to be used.
* This class should extend WebappClassLoader, otherwise, a different
* loader implementation must be used.
*/
private String loaderClass =
"org.glassfish.web.loader.WebappClassLoader";
/**
* The parent class loader of the class loader we will create.
*/
private ClassLoader parentClassLoader = null;
/**
* The reloadable flag for this Loader.
*/
private boolean reloadable = false;
/**
* The set of repositories associated with this class loader.
*/
private String repositories[] = new String[0];
/**
* The string manager for this package.
*/
protected static final StringManager sm =
StringManager.getManager(WebappLoader.class.getPackage().getName());
/**
* Has this component been started?
*/
private boolean started = false;
/**
* The property change support for this component.
*/
protected PropertyChangeSupport support = new PropertyChangeSupport(this);
/**
* Classpath set in the loader.
*/
private String classpath = null;
// START PE 4985680`
/**
* List of packages that may always be overridden, regardless of whether
* they belong to a protected namespace (i.e., a namespace that may never
* be overridden by a webapp)
*/
private ArrayList overridablePackages;
// END PE 4985680
// START PWC 1.1 6314481
private boolean ignoreHiddenJarFiles;
// END PWC 1.1 6314481
private boolean useMyFaces;
// ------------------------------------------------------------- Properties
/**
* Return the Java class loader to be used by this Container.
*/
public ClassLoader getClassLoader() {
return classLoader;
}
/**
* Return the Container with which this Logger has been associated.
*/
public Container getContainer() {
return (container);
}
/**
* Set the Container with which this Logger has been associated.
*
* @param container The associated Container
*/
public void setContainer(Container container) {
// Deregister from the old Container (if any)
if ((this.container != null) && (this.container instanceof Context))
((Context) this.container).removePropertyChangeListener(this);
// Process this property change
Container oldContainer = this.container;
this.container = container;
support.firePropertyChange("container", oldContainer, this.container);
// Register with the new Container (if any)
if ((this.container != null) && (this.container instanceof Context)) {
setReloadable( ((Context) this.container).getReloadable() );
((Context) this.container).addPropertyChangeListener(this);
}
}
/**
* Return the DefaultContext with which this Loader is associated.
* 4985680 What is that ???
*/
public DefaultContext getDefaultContext() {
return (this.defaultContext);
}
/**
* Set the DefaultContext with which this Loader is associated.
*
* @param defaultContext The newly associated DefaultContext
*/
public void setDefaultContext(DefaultContext defaultContext) {
DefaultContext oldDefaultContext = this.defaultContext;
this.defaultContext = defaultContext;
support.firePropertyChange("defaultContext", oldDefaultContext, this.defaultContext);
}
/**
* Return the debugging detail level for this component.
*/
public int getDebug() {
return (this.debug);
}
/**
* Set the debugging detail level for this component.
*
* @param debug The new debugging detail level
*/
public void setDebug(int debug) {
int oldDebug = this.debug;
this.debug = debug;
support.firePropertyChange("debug", Integer.valueOf(oldDebug),
Integer.valueOf(this.debug));
}
/**
* Return the "follow standard delegation model" flag used to configure
* our ClassLoader.
*/
public boolean getDelegate() {
return (this.delegate);
}
/**
* Set the "follow standard delegation model" flag used to configure
* our ClassLoader.
*
* @param delegate The new flag
*/
public void setDelegate(boolean delegate) {
boolean oldDelegate = this.delegate;
this.delegate = delegate;
support.firePropertyChange("delegate", Boolean.valueOf(oldDelegate),
Boolean.valueOf(this.delegate));
}
/**
* Return descriptive information about this Loader implementation and
* the corresponding version number, in the format
* <code><description>/<version>.
*/
public String getInfo() {
return (info);
}
/**
* Return the ClassLoader class name.
*/
public String getLoaderClass() {
return (this.loaderClass);
}
/**
* Set the ClassLoader class name.
*
* @param loaderClass The new ClassLoader class name
*/
public void setLoaderClass(String loaderClass) {
this.loaderClass = loaderClass;
}
/**
* Return the reloadable flag for this Loader.
*/
public boolean getReloadable() {
return (this.reloadable);
}
/**
* Set the reloadable flag for this Loader.
*
* @param reloadable The new reloadable flag
*/
public void setReloadable(boolean reloadable) {
// Process this property change
boolean oldReloadable = this.reloadable;
this.reloadable = reloadable;
support.firePropertyChange("reloadable",
Boolean.valueOf(oldReloadable),
Boolean.valueOf(this.reloadable));
}
public void setUseMyFaces(boolean useMyFaces) {
this.useMyFaces = useMyFaces;
}
// --------------------------------------------------------- Public Methods
/**
* Add a property change listener to this component.
*
* @param listener The listener to add
*/
public void addPropertyChangeListener(PropertyChangeListener listener) {
support.addPropertyChangeListener(listener);
}
/**
* Add a new repository to the set of repositories for this class loader.
*
* @param repository Repository to be added
*/
public void addRepository(String repository) {
if (log.isLoggable(Level.FINEST))
log.finest(sm.getString("webappLoader.addRepository",
repository));
for (int i = 0; i < repositories.length; i++) {
if (repository.equals(repositories[i]))
return;
}
String results[] = new String[repositories.length + 1];
for (int i = 0; i < repositories.length; i++)
results[i] = repositories[i];
results[repositories.length] = repository;
repositories = results;
if (started && (classLoader != null)) {
classLoader.addRepository(repository);
setClassPath();
}
}
/**
* Return the set of repositories defined for this class loader.
* If none are defined, a zero-length array is returned.
* For security reason, returns a clone of the Array (since
* String are immutable).
*/
public String[] findRepositories() {
return repositories.clone();
}
public String[] getRepositories() {
return repositories.clone();
}
/**
* Classpath, as set in org.apache.catalina.jsp_classpath context
* property
*
* @return The classpath
*/
public String getClasspath() {
return classpath;
}
/**
* Has the internal repository associated with this Loader been modified,
* such that the loaded classes should be reloaded?
*/
public boolean modified() {
return (classLoader.modified());
}
/**
* Used to periodically signal to the classloader to release JAR resources.
*/
public void closeJARs(boolean force) {
if (classLoader !=null){
classLoader.closeJARs(force);
}
}
/**
* Remove a property change listener from this component.
*
* @param listener The listener to remove
*/
public void removePropertyChangeListener(PropertyChangeListener listener) {
support.removePropertyChangeListener(listener);
}
/**
* Return a String representation of this component.
*/
public String toString() {
StringBuilder sb = new StringBuilder("WebappLoader[");
if (container != null)
sb.append(container.getName());
sb.append("]");
return (sb.toString());
}
// ------------------------------------------------------ Lifecycle Methods
/**
* Add a lifecycle event listener to this component.
*
* @param listener The listener to add
*/
public void addLifecycleListener(LifecycleListener listener) {
lifecycle.addLifecycleListener(listener);
}
/**
* Gets the (possibly empty) list of lifecycle listeners associated
* with this WebappLoader.
*/
public List<LifecycleListener> findLifecycleListeners() {
return lifecycle.findLifecycleListeners();
}
/**
* Remove a lifecycle event listener from this component.
*
* @param listener The listener to remove
*/
public void removeLifecycleListener(LifecycleListener listener) {
lifecycle.removeLifecycleListener(listener);
}
private boolean initialized=false;
public void init() {
initialized=true;
if( oname==null ) {
// not registered yet - standalone or API
if( container instanceof StandardContext) {
// Register ourself. The container must be a webapp
try {
StandardContext ctx=(StandardContext)container;
String path = ctx.getEncodedPath();
if (path.equals("")) {
path = "/";
}
oname = new ObjectName(ctx.getEngineName() +
":type=Loader,path=" +
path + ",host=" +
ctx.getParent().getName());
// Do not register unused tomcat mbeans
//Registry.getRegistry(null, null).registerComponent(this, oname,
// null);
controller = oname;
} catch (Exception e) {
log.log(Level.SEVERE, "Error registering loader", e);
}
}
}
if( container == null ) {
// JMX created the loader
// TODO
}
}
public void destroy() {
if( controller==oname ) {
// Do not register unused tomcat mbeans
//Registry.getRegistry(null, null).unregisterComponent(oname);
oname = null;
}
initialized = false;
}
/**
* Start this component, initializing our associated class loader.
*
* @exception LifecycleException if a lifecycle error occurs
*/
public void start() throws LifecycleException {
// Validate and update our current component state
if( ! initialized ) init();
if (started)
throw new LifecycleException
(sm.getString("webappLoader.alreadyStarted"));
if (log.isLoggable(Level.FINEST))
log.finest(sm.getString("webappLoader.starting"));
lifecycle.fireLifecycleEvent(START_EVENT, null);
started = true;
if (container.getResources() == null) {
log.info("No resources for " + container);
return;
}
// Register a stream handler factory for the JNDI protocol
URLStreamHandlerFactory streamHandlerFactory =
new DirContextURLStreamHandlerFactory();
synchronized (WebappLoader.class) {
if (first) {
first = false;
try {
URL.setURLStreamHandlerFactory(streamHandlerFactory);
} catch (Exception e) {
// Log and continue anyway, this is not critical
log.log(Level.SEVERE,
"Error registering jndi stream handler", e);
} catch (Throwable t) {
// This is likely a dual registration
if (log.isLoggable(Level.FINE)) {
log.fine("Dual registration of jndi stream handler: " +
t.getMessage());
}
}
}
}
// Construct a class loader based on our current repositories list
try {
ClassLoader cl = createClassLoader();
if (cl instanceof WebappClassLoader) {
classLoader = (WebappClassLoader) cl;
} else {
classLoader = new WebappClassLoader(cl);
}
classLoader.setResources(container.getResources());
classLoader.setDebug(this.debug);
classLoader.setDelegate(this.delegate);
for (int i = 0; i < repositories.length; i++) {
classLoader.addRepository(repositories[i]);
}
// START OF PE 4985680
if (overridablePackages != null){
for (int i = 0; i < overridablePackages.size(); i++) {
classLoader.addOverridablePackage(
(String)overridablePackages.get(i));
}
overridablePackages = null;
}
// END OF PE 4985680
// Configure our repositories
setRepositories();
setClassPath();
setPermissions();
// Binding the Webapp class loader to the directory context
DirContextURLStreamHandler.bind(classLoader,
this.container.getResources());
} catch (Throwable t) {
log.log(Level.SEVERE, "LifecycleException ", t);
throw new LifecycleException("start: ", t);
}
}
/**
* Stop this component, finalizing our associated class loader.
*
* @exception LifecycleException if a lifecycle error occurs
*/
public void stop() throws LifecycleException {
// Validate and update our current component state
if (!started)
throw new LifecycleException
(sm.getString("webappLoader.notStarted"));
if (log.isLoggable(Level.FINEST))
log.finest(sm.getString("webappLoader.stopping"));
lifecycle.fireLifecycleEvent(STOP_EVENT, null);
started = false;
// Remove context attributes as appropriate
if (container instanceof Context) {
ServletContext servletContext =
((Context) container).getServletContext();
servletContext.removeAttribute(Globals.CLASS_PATH_ATTR);
}
// Throw away our current class loader
stopNestedClassLoader();
DirContextURLStreamHandler.unbind(classLoader);
classLoader = null;
destroy();
}
/**
* Stops the nested classloader
*/
public void stopNestedClassLoader() throws LifecycleException {
try {
classLoader.stop();
} catch (Exception e) {
throw new LifecycleException(e);
}
}
// ----------------------------------------- PropertyChangeListener Methods
/**
* Process property change events from our associated Context.
*
* @param event The property change event that has occurred
*/
public void propertyChange(PropertyChangeEvent event) {
// Validate the source of this event
if (!(event.getSource() instanceof Context))
return;
// Process a relevant property change
if (event.getPropertyName().equals("reloadable")) {
try {
setReloadable
( ((Boolean) event.getNewValue()).booleanValue() );
} catch (NumberFormatException e) {
log.log(Level.SEVERE,
sm.getString("webappLoader.reloadable",
event.getNewValue().toString()));
}
}
}
// ------------------------------------------------------- Private Methods
/**
* Create associated classLoader.
*/
protected ClassLoader createClassLoader()
throws Exception {
Class<?> clazz = Class.forName(loaderClass);
WebappClassLoader classLoader = null;
if (parentClassLoader == null) {
parentClassLoader = Thread.currentThread().getContextClassLoader();
}
Class<?>[] argTypes = { ClassLoader.class };
Object[] args = { parentClassLoader };
Constructor<?> constr = clazz.getConstructor(argTypes);
classLoader = (WebappClassLoader) constr.newInstance(args);
classLoader.setUseMyFaces(useMyFaces);
/*
* Start the WebappClassLoader here as opposed to in the course of
* WebappLoader#start, in order to prevent it from being started
* twice (during normal deployment, the WebappClassLoader is created
* by the deployment backend without calling
* WebappLoader#createClassLoader, and will have been started
* by the time WebappLoader#start is called)
*/
try {
classLoader.start();
} catch (Exception e) {
throw new LifecycleException(e);
}
return classLoader;
}
/**
* Log a message on the Logger associated with our Container (if any)
*
* @param message Message to be logged
*/
private void log(String message) {
org.apache.catalina.Logger logger = null;
String containerName = null;
if (container != null) {
logger = container.getLogger();
containerName = container.getName();
}
if (logger != null) {
logger.log("WebappLoader[" + containerName + "]: " +
message);
} else {
log.info("WebappLoader[" + containerName + "]: " + message);
}
}
/**
* Log a message on the Logger associated with our Container (if any)
*
* @param message Message to be logged
* @param t Associated exception
*/
private void log(String message, Throwable t) {
org.apache.catalina.Logger logger = null;
String containerName = null;
if (container != null) {
logger = container.getLogger();
containerName = container.getName();
}
if (logger != null) {
logger.log("WebappLoader[" + containerName + "] " + message, t);
} else {
log.log(Level.WARNING,
"WebappLoader[" + containerName + "]: " + message, t);
}
}
/**
* Configure associated class loader permissions.
*/
private void setPermissions() {
if (!Globals.IS_SECURITY_ENABLED)
return;
if (!(container instanceof Context))
return;
// Tell the class loader the root of the context
ServletContext servletContext =
((Context) container).getServletContext();
// Assigning permissions for the work directory
File workDir =
(File) servletContext.getAttribute(ServletContext.TEMPDIR);
if (workDir != null) {
try {
String workDirPath = workDir.getCanonicalPath();
classLoader.addPermission
(new FilePermission(workDirPath, "read,write"));
classLoader.addPermission
(new FilePermission(workDirPath + File.separator + "-",
"read,write,delete"));
} catch (IOException e) {
// Ignore
}
}
try {
URL rootURL = servletContext.getResource("/");
classLoader.addPermission(rootURL);
String contextRoot = servletContext.getRealPath("/");
if (contextRoot != null) {
try {
contextRoot = (new File(contextRoot)).getCanonicalPath();
classLoader.addPermission(contextRoot);
} catch (IOException e) {
// Ignore
}
}
URL classesURL = servletContext.getResource("/WEB-INF/classes/");
classLoader.addPermission(classesURL);
URL libURL = servletContext.getResource("/WEB-INF/lib/");
classLoader.addPermission(libURL);
if (contextRoot != null) {
if (libURL != null) {
File rootDir = new File(contextRoot);
File libDir = new File(rootDir, "WEB-INF/lib/");
try {
String path = libDir.getCanonicalPath();
classLoader.addPermission(path);
} catch (IOException e) {
}
}
} else {
if (workDir != null) {
if (libURL != null) {
File libDir = new File(workDir, "WEB-INF/lib/");
try {
String path = libDir.getCanonicalPath();
classLoader.addPermission(path);
} catch (IOException e) {
}
}
if (classesURL != null) {
File classesDir = new File(workDir, "WEB-INF/classes/");
try {
String path = classesDir.getCanonicalPath();
classLoader.addPermission(path);
} catch (IOException e) {
}
}
}
}
} catch (MalformedURLException e) {
}
}
/**
* Configure the repositories for our class loader, based on the
* associated Context.
*/
private void setRepositories() {
if (!(container instanceof Context))
return;
ServletContext servletContext =
((Context) container).getServletContext();
if (servletContext == null)
return;
// Loading the work directory
File workDir =
(File) servletContext.getAttribute(ServletContext.TEMPDIR);
if (workDir == null) {
log.info("No work dir for " + servletContext);
}
if (log.isLoggable(Level.FINEST) && workDir != null)
log.finest(sm.getString("webappLoader.deploy",
workDir.getAbsolutePath()));
DirContext resources = container.getResources();
// Setting up the class repository (/WEB-INF/classes), if it exists
String classesPath = "/WEB-INF/classes";
DirContext classes = null;
try {
Object object = resources.lookup(classesPath);
if (object instanceof DirContext) {
classes = (DirContext) object;
}
} catch(NamingException e) {
// Silent catch: it's valid that no /WEB-INF/classes collection
// exists
}
if (classes != null) {
File classRepository = null;
String absoluteClassesPath =
servletContext.getRealPath(classesPath);
if (absoluteClassesPath != null) {
classRepository = new File(absoluteClassesPath);
} else {
classRepository = new File(workDir, classesPath);
classRepository.mkdirs();
copyDir(classes, classRepository);
}
if (log.isLoggable(Level.FINEST))
log.finest(sm.getString("webappLoader.classDeploy",
classesPath,
classRepository.getAbsolutePath()));
}
// Setting up the JAR repository (/WEB-INF/lib), if it exists
String libPath = "/WEB-INF/lib";
classLoader.setJarPath(libPath);
DirContext libDir = null;
// Looking up directory /WEB-INF/lib in the context
try {
Object object = resources.lookup(libPath);
if (object instanceof DirContext)
libDir = (DirContext) object;
} catch(NamingException e) {
// Silent catch: it's valid that no /WEB-INF/lib collection
// exists
}
if (libDir != null) {
boolean copyJars = false;
String absoluteLibPath = servletContext.getRealPath(libPath);
File destDir = null;
if (absoluteLibPath != null) {
destDir = new File(absoluteLibPath);
} else {
copyJars = true;
destDir = new File(workDir, libPath);
destDir.mkdirs();
}
if (!copyJars) {
return;
}
// Looking up directory /WEB-INF/lib in the context
try {
NamingEnumeration<Binding> enumeration =
resources.listBindings(libPath);
while (enumeration.hasMoreElements()) {
Binding binding = enumeration.nextElement();
String filename = libPath + "/" + binding.getName();
// START OF IASRI 4657979
if (!filename.endsWith(".jar") &&
!filename.endsWith(".zip"))
// END OF IASRI 4657979
continue;
// START PWC 1.1 6314481
if (binding.getName() != null
&& binding.getName().startsWith(".")
&& ignoreHiddenJarFiles) {
continue;
}
// END PWC 1.1 6314481
File destFile = new File(destDir, binding.getName());
if (log.isLoggable(Level.FINEST)) {
log.finest(sm.getString("webappLoader.jarDeploy",
filename,
destFile.getAbsolutePath()));
}
Object obj = binding.getObject();
if (!(obj instanceof Resource))
continue;
Resource jarResource = (Resource) obj;
if (!copy(jarResource.streamContent(),
new FileOutputStream(destFile))) {
continue;
}
}
} catch (NamingException e) {
// Silent catch: it's valid that no /WEB-INF/lib directory
// exists
} catch (IOException e) {
log("Unable to configure repositories", e);
}
}
}
/**
* Set the appropriate context attribute for our class path. This
* is required only because Jasper depends on it.
*/
private void setClassPath() {
// Validate our current state information
if (!(container instanceof Context))
return;
ServletContext servletContext =
((Context) container).getServletContext();
if (servletContext == null)
return;
if (container instanceof StandardContext) {
String baseClasspath =
((StandardContext) container).getCompilerClasspath();
if (baseClasspath != null) {
servletContext.setAttribute(Globals.CLASS_PATH_ATTR,
baseClasspath);
return;
}
}
StringBuilder classpath = new StringBuilder();
// Assemble the class path information from our class loader chain
ClassLoader loader = getClassLoader();
boolean first = true;
while (loader != null) {
if (!(loader instanceof URLClassLoader)) {
String cp = getClasspath(loader);
if (cp != null) {
if (!first) {
classpath.append(File.pathSeparator);
} else {
first = false;
}
classpath.append(cp);
}
} else {
URL[] repositories = ((URLClassLoader) loader).getURLs();
for (int i = 0; i < repositories.length; i++) {
if (repositories[i] == null) {
continue;
}
String repository = repositories[i].toString();
if (repository.startsWith("file://")) {
repository = repository.substring(7);
} else if (repository.startsWith("file:")) {
repository = repository.substring(5);
} else if (repository.startsWith("jndi:")) {
repository = servletContext.getRealPath(
repository.substring(5));
} else {
continue;
}
if (!repository.isEmpty()) {
if (!first) {
classpath.append(File.pathSeparator);
} else {
first = false;
}
classpath.append(repository);
}
}
}
loader = loader.getParent();
}
this.classpath = classpath.toString();
// Store the assembled class path as a servlet context attribute
servletContext.setAttribute(Globals.CLASS_PATH_ATTR,
classpath.toString());
}
// try to extract the classpath from a loader that is not URLClassLoader
private String getClasspath( ClassLoader loader ) {
try {
Method m=loader.getClass().getMethod("getClasspath", new Class[] {});
if (log.isLoggable(Level.FINEST))
log.finest("getClasspath " + m );
if( m==null ) return null;
Object o=m.invoke( loader, new Object[] {} );
if (log.isLoggable(Level.FINEST))
log.finest("gotClasspath " + o);
if (o instanceof String )
return (String)o;
return null;
} catch (Exception ex) {
if (log.isLoggable(Level.FINEST))
log.log(Level.FINEST, "getClasspath ", ex);
}
return null;
}
/**
* Copy directory.
*/
private boolean copyDir(DirContext srcDir, File destDir) {
try {
NamingEnumeration<NameClassPair> enumeration = srcDir.list("");
while (enumeration.hasMoreElements()) {
NameClassPair ncPair = enumeration.nextElement();
String name = ncPair.getName();
Object object = srcDir.lookup(name);
File currentFile = new File(destDir, name);
if (object instanceof Resource) {
InputStream is = ((Resource) object).streamContent();
OutputStream os = new FileOutputStream(currentFile);
if (!copy(is, os))
return false;
} else if (object instanceof InputStream) {
OutputStream os = new FileOutputStream(currentFile);
if (!copy((InputStream) object, os))
return false;
} else if (object instanceof DirContext) {
currentFile.mkdir();
copyDir((DirContext) object, currentFile);
}
}
} catch (NamingException e) {
return false;
} catch (IOException e) {
return false;
}
return true;
}
/**
* Copy a file to the specified temp directory. This is required only
* because Jasper depends on it.
*/
private boolean copy(InputStream is, OutputStream os) {
try {
byte[] buf = new byte[4096];
while (true) {
int len = is.read(buf);
if (len < 0)
break;
os.write(buf, 0, len);
}
} catch (IOException e) {
return false;
} finally {
try {
is.close();
} catch (Exception e) {
// do nothing
}
try {
os.close();
} catch (Exception e) {
// do nothing
}
}
return true;
}
public ObjectName preRegister(MBeanServer server,
ObjectName name) throws Exception {
oname=name;
return name;
}
public void postRegister(Boolean registrationDone) {
}
public void preDeregister() throws Exception {
}
public void postDeregister() {
}
public ObjectName getController() {
return controller;
}
public void setController(ObjectName controller) {
this.controller = controller;
}
// START OF PE 4985680
/**
* Adds the given package name to the list of packages that may always be
* overriden, regardless of whether they belong to a protected namespace
*/
public void addOverridablePackage(String packageName){
if ( overridablePackages == null){
overridablePackages = new ArrayList();
}
overridablePackages.add( packageName );
}
// END OF PE 4985680
// START PWC 1.1 6314481
public void setIgnoreHiddenJarFiles(boolean ignoreHiddenJarFiles) {
this.ignoreHiddenJarFiles = ignoreHiddenJarFiles;
}
// END PWC 1.1 6314481
}
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