summaryrefslogtreecommitdiffstats
path: root/libjava/java/rmi/server/RMIClassLoader.java
diff options
context:
space:
mode:
Diffstat (limited to 'libjava/java/rmi/server/RMIClassLoader.java')
-rw-r--r--libjava/java/rmi/server/RMIClassLoader.java339
1 files changed, 0 insertions, 339 deletions
diff --git a/libjava/java/rmi/server/RMIClassLoader.java b/libjava/java/rmi/server/RMIClassLoader.java
deleted file mode 100644
index 1a2e2837dd8..00000000000
--- a/libjava/java/rmi/server/RMIClassLoader.java
+++ /dev/null
@@ -1,339 +0,0 @@
-/* RMIClassLoader.java --
- Copyright (c) 1996, 1997, 1998, 1999, 2002, 2003, 2004
- Free Software Foundation, Inc.
-
-This file is part of GNU Classpath.
-
-GNU Classpath is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU Classpath is distributed in the hope that it will be useful, but
-WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Classpath; see the file COPYING. If not, write to the
-Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA.
-
-Linking this library statically or dynamically with other modules is
-making a combined work based on this library. Thus, the terms and
-conditions of the GNU General Public License cover the whole
-combination.
-
-As a special exception, the copyright holders of this library give you
-permission to link this library with independent modules to produce an
-executable, regardless of the license terms of these independent
-modules, and to copy and distribute the resulting executable under
-terms of your choice, provided that you also meet, for each linked
-independent module, the terms and conditions of the license of that
-module. An independent module is a module which is not derived from
-or based on this library. If you modify this library, you may extend
-this exception to your version of the library, but you are not
-obligated to do so. If you do not wish to do so, delete this
-exception statement from your version. */
-
-package java.rmi.server;
-
-import java.net.MalformedURLException;
-import java.net.URL;
-import java.net.URLClassLoader;
-import java.util.ArrayList;
-import java.util.Hashtable;
-import java.util.Map;
-import java.util.StringTokenizer;
-
-
-/**
- * This class provides a set of public static utility methods for supporting
- * network-based class loading in RMI. These methods are called by RMI's
- * internal marshal streams to implement the dynamic class loading of types for
- * RMI parameters and return values.
- */
-public class RMIClassLoader
-{
- /**
- * This class isn't intended to be instantiated.
- */
- private RMIClassLoader() {}
-
- private static class MyClassLoader extends URLClassLoader
- {
- // Package-private to avoid a trampoline constructor.
- MyClassLoader (URL[] urls, ClassLoader parent, String annotation)
- {
- super (urls, parent);
- this.annotation = annotation;
- }
-
- private MyClassLoader (URL[] urls, ClassLoader parent)
- {
- super (urls, parent);
- this.annotation = urlToAnnotation (urls);
- }
-
- public static String urlToAnnotation (URL[] urls)
- {
- if (urls.length == 0)
- return null;
-
- StringBuffer annotation = new StringBuffer (64 * urls.length);
-
- for (int i = 0; i < urls.length; i++)
- {
- annotation.append (urls [i].toExternalForm());
- annotation.append (' ');
- }
-
- return annotation.toString();
- }
-
- public final String getClassAnnotation()
- {
- return annotation;
- }
-
- private final String annotation;
- }
-
- /**
- * This class is used to identify a cached classloader by its codebase and
- * the context classloader that is its parent.
- */
- private static class CacheKey
- {
- private String mCodeBase;
- private ClassLoader mContextClassLoader;
-
- public CacheKey (String theCodebase, ClassLoader theContextClassLoader)
- {
- mCodeBase = theCodebase;
- mContextClassLoader = theContextClassLoader;
- }
-
- /**
- * @return true if the codebase and the context classloader are equal
- */
- public boolean equals (Object theOther)
- {
- if (theOther instanceof CacheKey)
- {
- CacheKey key = (CacheKey) theOther;
-
- return (equals (this.mCodeBase,key.mCodeBase)
- && equals (this.mContextClassLoader, key.mContextClassLoader));
- }
- return false;
- }
-
- /**
- * Test if the two objects are equal or both null.
- * @param theOne
- * @param theOther
- * @return
- */
- private boolean equals (Object theOne, Object theOther)
- {
- return theOne != null ? theOne.equals (theOther) : theOther == null;
- }
-
- /**
- * @return hashCode
- */
- public int hashCode()
- {
- return ((mCodeBase != null ? mCodeBase.hashCode() : 0)
- ^(mContextClassLoader != null ? mContextClassLoader.hashCode() : -1));
- }
-
- public String toString()
- {
- return "[" + mCodeBase + "," + mContextClassLoader + "]";
- }
-
- }
-
- private static Map cacheLoaders; //map annotations to loaders
- private static Map cacheAnnotations; //map loaders to annotations
-
- //defaultAnnotation is got from system property
- // "java.rmi.server.defaultAnnotation"
- private static String defaultAnnotation;
-
- //URL object for defaultAnnotation
- private static URL defaultCodebase;
-
- //class loader for defaultAnnotation
- private static MyClassLoader defaultLoader;
-
- static
- {
- // 89 is a nice prime number for Hashtable initial capacity
- cacheLoaders = new Hashtable (89);
- cacheAnnotations = new Hashtable (89);
-
- defaultAnnotation = System.getProperty ("java.rmi.server.defaultAnnotation");
-
- try
- {
- if (defaultAnnotation != null)
- defaultCodebase = new URL (defaultAnnotation);
- }
- catch (Exception _)
- {
- defaultCodebase = null;
- }
-
- if (defaultCodebase != null)
- {
- defaultLoader = new MyClassLoader (new URL[] { defaultCodebase }, null,
- defaultAnnotation);
- cacheLoaders.put (new CacheKey (defaultAnnotation,
- Thread.currentThread().getContextClassLoader()),
- defaultLoader);
- }
- }
-
- /**
- * @deprecated
- */
- public static Class loadClass (String name)
- throws MalformedURLException, ClassNotFoundException
- {
- return loadClass ("", name);
- }
-
- public static Class loadClass (String codebases, String name)
- throws MalformedURLException, ClassNotFoundException
- {
- ClassLoader loader = Thread.currentThread().getContextClassLoader();
-
- //try context class loader first
- try
- {
- return loader.loadClass (name);
- }
- catch (ClassNotFoundException e)
- {
- // class not found in the local classpath
- }
-
- if (codebases.length() == 0) //==""
- {
- loader = defaultLoader;
- }
- else
- {
- loader = getClassLoader(codebases);
- }
-
- if (loader == null)
- {
- //do not throw NullPointerException
- throw new ClassNotFoundException ("Could not find class (" + name +
- ") at codebase (" + codebases + ")");
- }
-
- return loader.loadClass (name);
- }
-
- /**
- * Gets a classloader for the given codebase and with the current
- * context classloader as parent.
- *
- * @param codebases
- *
- * @return a classloader for the given codebase
- *
- * @throws MalformedURLException if the codebase contains a malformed URL
- */
- public static ClassLoader getClassLoader (String codebases)
- throws MalformedURLException
- {
- ClassLoader loader;
- CacheKey loaderKey = new CacheKey
- (codebases, Thread.currentThread().getContextClassLoader());
- loader = (ClassLoader) cacheLoaders.get (loaderKey);
-
- if (loader == null)
- {
- //create an entry in cacheLoaders mapping a loader to codebases.
- // codebases are separated by " "
- StringTokenizer tok = new StringTokenizer (codebases, " ");
- ArrayList urls = new ArrayList();
-
- while (tok.hasMoreTokens())
- urls.add (new URL (tok.nextToken()));
-
- loader = new MyClassLoader ((URL[]) urls.toArray (new URL [urls.size()]),
- Thread.currentThread().getContextClassLoader(),
- codebases);
- cacheLoaders.put (loaderKey, loader);
- }
-
- return loader;
- }
-
- /**
- * Returns a string representation of the network location where a remote
- * endpoint can get the class-definition of the given class.
- *
- * @param cl
- *
- * @return a space seperated list of URLs where the class-definition
- * of cl may be found
- */
- public static String getClassAnnotation (Class cl)
- {
- ClassLoader loader = cl.getClassLoader();
-
- if (loader == null
- || loader == ClassLoader.getSystemClassLoader())
- {
- return System.getProperty ("java.rmi.server.codebase");
- }
-
- if (loader instanceof MyClassLoader)
- {
- return ((MyClassLoader) loader).getClassAnnotation();
- }
-
- String s = (String) cacheAnnotations.get (loader);
-
- if (s != null)
- return s;
-
- if (loader instanceof URLClassLoader)
- {
- URL[] urls = ((URLClassLoader) loader).getURLs();
-
- if (urls.length == 0)
- return null;
-
- StringBuffer annotation = new StringBuffer (64 * urls.length);
-
- for (int i = 0; i < urls.length; i++)
- {
- annotation.append (urls [i].toExternalForm());
- annotation.append (' ');
- }
-
- s = annotation.toString();
- cacheAnnotations.put (loader, s);
- return s;
- }
-
- return System.getProperty ("java.rmi.server.codebase");
- }
-
- /**
- * @deprecated
- */
- public static Object getSecurityContext (ClassLoader loader)
- {
- throw new Error ("Not implemented");
- }
-}
OpenPOWER on IntegriCloud