User: reverbel
Date: 02/03/10 17:20:42
Modified: src/main/org/jboss/web WebClassLoader.java
Log:
- WebClassLoader has now a single constructor, which takes a Container and
a UnifiedClassLoader.
- Added methods getKey and getBytes, meant to be overriden by subclasses.
Revision Changes Path
1.3 +62 -13 jboss/src/main/org/jboss/web/WebClassLoader.java
Index: WebClassLoader.java
===================================================================
RCS file: /cvsroot/jboss/jboss/src/main/org/jboss/web/WebClassLoader.java,v
retrieving revision 1.2
retrieving revision 1.3
diff -u -r1.2 -r1.3
--- WebClassLoader.java 18 Jun 2001 20:01:29 -0000 1.2
+++ WebClassLoader.java 11 Mar 2002 01:20:42 -0000 1.3
@@ -3,11 +3,24 @@
import java.net.URL;
import java.net.URLClassLoader;
-/** A simple subclass of URLClassLoader that overrides the getURLs()
-method to return a different set of URLs for remote loading than what is used
-for local loading. This class is used in conjunction with the WebService
-mbean to allow dynamic loading of resources and classes from deployed ears,
-ejb jars and wars.
+import org.jboss.ejb.Container;
+import org.jboss.system.UnifiedClassLoader;
+
+
+/** A simple subclass of URLClassLoader that is used in conjunction with the
+the WebService mbean to allow dynamic loading of resources and classes from
+deployed ears, ejb jars and wars. A WebClassLoader is associated with a
+Container and must have an UnifiedClassLoader as its parent. It overrides the
+getURLs() method to return a different set of URLs for remote loading than
+what is used for local loading.
+<p>
+WebClassLoader has two methods meant to be overriden by subclasses: getKey()
+and getBytes(). The latter is a no-op in this implementation and should be
+overriden by subclasses with bytecode generation ability, such as the
+classloader used by the iiop module.
+<p>
+WebClassLoader subclasses must have a constructor with the same signature
+as the WebClassLoader constructor.
@see #getUrls()
@see #setWebURLs(URL[])
@@ -15,25 +28,46 @@
@author <a href="mailto:[EMAIL PROTECTED]";>Scott Stark</a>.
@author Sacha Labourey <[EMAIL PROTECTED]>
@author Vladimir Blagojevic <[EMAIL PROTECTED]>
-@version $Revision: 1.2 $
+@author <a href="mailto:[EMAIL PROTECTED]";>Francisco Reverbel</a>
+@version $Revision: 1.3 $
*/
public class WebClassLoader extends URLClassLoader
{
+ /** This WebClassLoader is associated with this container. */
+ private Container container;
+
/** The URLs returned by the getURLs() method override */
private URL[] webURLs;
- /** Creates new WebClassLoader */
- public WebClassLoader(URL[] urls)
+ /** Creates new WebClassLoader.
+ Subclasses must have a constructor with the same signature. */
+ public WebClassLoader(Container container, UnifiedClassLoader parent)
{
- super(urls);
+ super(new URL[0], parent);
+ this.container = container;
}
- public WebClassLoader(URL[] urls, ClassLoader parent)
+
+ /** Gets a string key used as the key into the WebServer's loaderMap. */
+ public String getKey()
{
- super(urls, parent);
+ String className = getClass().getName();
+ int dot = className.lastIndexOf('.');
+ if( dot >= 0 )
+ className = className.substring(dot+1);
+ String key = className + '@' + hashCode() + '/';
+ return key;
}
- public WebClassLoader(URL[] urls, ClassLoader parent,
java.net.URLStreamHandlerFactory factory)
+
+ /** Gets this WebClassLoader's container. */
+ public Container getContainer()
{
- super(urls, parent, factory);
+ return container;
+ }
+
+ /** Returns the single URL for my parent, an UnifiedClassLoader. */
+ public URL getURL()
+ {
+ return ((UnifiedClassLoader)getParent()).getURL();
}
/** Get the list of URLs that should be used as the RMI annotated codebase.
@@ -64,4 +98,19 @@
{
this.webURLs = webURLs;
}
+
+ /** Gets the bytecodes for a given class.
+ * This implementation always returns null, indicating that it is unable
+ * to get bytecodes for any class. Should be overridden by subclasses
+ * with bytecode generation capability (such as the classloader used by
+ * the iiop module, which generates IIOP stubs on the fly).
+ *
+ @param cls a <code>Class</code>
+ @return a byte array with the bytecodes for class <code>cls</code>, or
+ * null if this classloader is unable to return such byte array.
+ */
+ public byte[] getBytes(Class clz) {
+ return null; // this classloader is unable to return bytecodes
+ }
+
}
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