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Imported GNU Classpath 0.90

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Imported GNU Classpath 0.90
       * scripts/makemake.tcl: Set gnu/java/awt/peer/swing to ignore.
       * gnu/classpath/jdwp/VMFrame.java (SIZE): New constant.
       * java/lang/VMCompiler.java: Use gnu.java.security.hash.MD5.
       * java/lang/Math.java: New override file.
       * java/lang/Character.java: Merged from Classpath.
       (start, end): Now 'int's.
       (canonicalName): New field.
       (CANONICAL_NAME, NO_SPACES_NAME, CONSTANT_NAME): New constants.
       (UnicodeBlock): Added argument.
       (of): New overload.
       (forName): New method.
       Updated unicode blocks.
       (sets): Updated.
       * sources.am: Regenerated.
       * Makefile.in: Likewise.

From-SVN: r111942
This commit is contained in:
Mark Wielaard 2006-03-10 21:46:48 +00:00
parent 27079765d0
commit 8aa540d2f7
1367 changed files with 188789 additions and 22762 deletions
Download patch file Download diff file Expand all files Collapse all files

172
libjava/classpath/gnu/java/rmi/dgc/DGCImpl.java
View file

@ -8,7 +8,7 @@ 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
@ -49,70 +49,146 @@ import java.rmi.server.RMISocketFactory;
import java.util.Hashtable;
/**
* I let DGCImpl to extend UnicastServerRef, but not
* UnicastRemoteObject, because UnicastRemoteObject must
* exportObject automatically.
*/
* The DGC implementation is used for the server side during the distributed
* garbage collection. This interface contains the two methods: dirty and clean.
* A dirty call is made when a remote reference is unmarshaled in a client. A
* corresponding clean call is made by client it no longer uses that remote
* reference. A reference to a remote object is also automatically released
* after so called lease period that starts after the dirty call is received. It
* is the client's responsibility to renew the leases, by making additional
* dirty calls before such leases expire.
*/
public class DGCImpl
extends UnicastServerRef implements DGC {
extends UnicastServerRef
implements DGC
{
/*
* The DGCImpl extends UnicastServerRef and not UnicastRemoteObject, because
* UnicastRemoteObject must exportObject automatically.
*/
/**
* This defauld lease value is used if the lease value, passed to the
* {@link #dirty} is equal to zero.
*/
static final long LEASE_VALUE = 600000L;
private static final long LEASE_VALUE = 600000L;
// leaseCache caches a LeaseRecord associated with a vmid
private Hashtable leaseCache = new Hashtable();
// leaseCache caches a LeaseRecord associated with a vmid
Hashtable leaseCache = new Hashtable();
public DGCImpl() throws RemoteException {
super(new ObjID(ObjID.DGC_ID), 0, RMISocketFactory.getSocketFactory());
}
public DGCImpl() throws RemoteException
{
super(new ObjID(ObjID.DGC_ID), 0, RMISocketFactory.getSocketFactory());
}
/**
* Mark the given objects referecnes as used on the client side.
*
* @param ids the ids of the used objects.
* @param sequenceNum the number of the call (used to detect and discard late
* calls).
* @param lease the requested lease
* @return the granted lease
*/
public Lease dirty(ObjID[] ids, long sequenceNum, Lease lease)
throws RemoteException
{
VMID vmid = lease.getVMID();
if (vmid == null)
vmid = new VMID();
long leaseValue = lease.getValue();
if (leaseValue <= 0)
leaseValue = LEASE_VALUE;
public Lease dirty(ObjID[] ids, long sequenceNum, Lease lease) throws RemoteException {
VMID vmid = lease.getVMID();
if (vmid == null)
vmid = new VMID();
long leaseValue = LEASE_VALUE;
//long leaseValue = lease.getValue();
lease = new Lease(vmid, leaseValue);
synchronized(leaseCache){
LeaseRecord lr = (LeaseRecord)leaseCache.get(vmid);
if (lr != null)
lr.reset(leaseValue);
else{
lr = new LeaseRecord(vmid, leaseValue);
leaseCache.put(vmid, lr);
}
}
return (lease);
}
public void clean(ObjID[] ids, long sequenceNum, VMID vmid, boolean strong) throws RemoteException {
// Not implemented
}
LeaseRecord lr = (LeaseRecord) leaseCache.get(vmid);
if (lr != null)
lr.reset(leaseValue);
else
{
lr = new LeaseRecord(vmid, leaseValue, ids);
leaseCache.put(vmid, lr);
}
return (lease);
}
/**
* Mark the given objects as no longer used on the client side.
*
* @param ids the ids of the objects that are no longer used.
* @param sequenceNum the number of the call (used to detect and discard late
* calls)
* @param vmid the VMID of the client.
* @param strong make the "strong" clean call.
*/
public void clean(ObjID[] ids, long sequenceNum, VMID vmid, boolean strong)
throws RemoteException
{
// Not implemented
// TODO implement
}
/**
* LeaseRecord associates a vmid to expireTime.
*/
private static class LeaseRecord{
private VMID vmid;
private long expireTime;
static class LeaseRecord
{
/**
* The lease id.
*/
final VMID vmid;
/**
* The lease expiration time.
*/
long expireTime;
LeaseRecord(VMID vmid, long leaseValue){
/**
* The array of ObjeID's that must be protected from being garbage
* collected.
*/
final ObjID [] objects;
/**
* Create the new lease record.
*
* @param vmid lease id.
* @param leaseValue lease value
*/
LeaseRecord(VMID vmid, long leaseValue, ObjID [] an_objects)
{
this.vmid = vmid;
reset(leaseValue);
objects = an_objects;
}
// reset expireTime
void reset(long leaseValue){
/**
* Prolong the expiration time till current time + passed value
*
* @param leaseValue the value after that (since the current moment)
* the lease should expire in the future.
*/
void reset(long leaseValue)
{
long l = System.currentTimeMillis();
expireTime = l + leaseValue;
}
boolean isExpired(){
/**
* Check if the lease has been expired.
*
* @return true if the lease has been expired, false if it is still valid.
*/
boolean isExpired()
{
long l = System.currentTimeMillis();
if ( l > expireTime)
return true;
if (l > expireTime)
return true;
return false;
}
} //End of LeaseRecord
} //End of DGCImpl
} // End of LeaseRecord
} // End of DGCImpl

2
libjava/classpath/gnu/java/rmi/registry/RegistryImpl.java
View file

@ -111,7 +111,7 @@ public static void version() {
+ System.getProperty("java.vm.name")
+ ") "
+ System.getProperty("java.vm.version"));
System.out.println("Copyright 2005 Free Software Foundation, Inc.");
System.out.println("Copyright 2006 Free Software Foundation, Inc.");
System.out.println("This is free software; see the source for copying conditions. There is NO");
System.out.println("warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.");
System.exit(0);

149
libjava/classpath/gnu/java/rmi/server/CombinedClassLoader.java Normal file
View file

@ -0,0 +1,149 @@
/* CombinedClassLoader.java -- Multiple class loader support for proxy.
Copyright (C) 2006 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 gnu.java.rmi.server;
import java.io.IOException;
import java.net.URL;
import java.util.Collection;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.ArrayList;
/**
* This class supports the multiple class loaders to load the resources. It is
* used for constructing proxy classes that implement interfaces, loaded by
* the several different class loaders.
*
* @author Audrius Meskauskas (AudriusA@Bioinformatics.org)
*/
public class CombinedClassLoader extends ClassLoader
{
/**
* The class loader array.
*/
ClassLoader[] loaders;
/**
* Create a new combined class loader that uses the given collection of
* loaders to load the classes and resources. The loader order is equal to
* the order, returned by the collection interator. The duplicate loaders
* are discarded and the system class loader is added as the last loader.
*
* @param a_loaders the loadery collection (may contain duplicate instances
* that will be discarded.
*/
public CombinedClassLoader(Collection a_loaders)
{
ArrayList sLoaders = new ArrayList(a_loaders.size());
Iterator iter = a_loaders.iterator();
Object cl;
while (iter.hasNext())
{
cl = iter.next();
if (!sLoaders.contains(cl))
sLoaders.add(iter.next());
}
loaders = new ClassLoader[sLoaders.size()];
for (int i = 0; i < loaders.length; i++)
loaders[i] = (ClassLoader) sLoaders.get(i);
}
/**
* Find the class with the given name.
*/
protected Class findClass(String name) throws ClassNotFoundException
{
for (int i = 0; i < loaders.length; i++)
{
try
{
return findClass(name);
}
catch (ClassNotFoundException e)
{
// try another.
}
}
return super.findClass(name);
}
/**
* Find the library with the given name
*/
protected String findLibrary(String name)
{
for (int i = 0; i < loaders.length; i++)
{
String lib = findLibrary(name);
if (lib != null)
return lib;
}
return super.findLibrary(name);
}
/**
* Find resource with the given name.
*/
protected URL findResource(String name)
{
for (int i = 0; i < loaders.length; i++)
{
URL resource = findResource(name);
if (resource != null)
return resource;
}
return super.findResource(name);
}
/**
* Find resources with the given name.
*/
protected Enumeration findResources(String name) throws IOException
{
for (int i = 0; i < loaders.length; i++)
{
Enumeration resource = findResources(name);
if (resource != null)
return resource;
}
return super.findResources(name); }
}

64
libjava/classpath/gnu/java/rmi/server/RMIObjectInputStream.java
View file

@ -46,6 +46,7 @@ import java.io.ObjectStreamClass;
import java.lang.reflect.Proxy;
import java.net.MalformedURLException;
import java.rmi.server.RMIClassLoader;
import java.util.ArrayList;
public class RMIObjectInputStream
extends ObjectInputStream {
@ -76,28 +77,51 @@ protected Object getAnnotation()
return readObject();
}
protected Class resolveProxyClass(String intfs[])
throws IOException, ClassNotFoundException
{
String annotation = (String)getAnnotation();
protected Class resolveProxyClass(String intfs[]) throws IOException,
ClassNotFoundException
{
String annotation = (String) getAnnotation();
Class clss[] = new Class[intfs.length];
if(annotation == null)
clss[0] = RMIClassLoader.loadClass(intfs[0]);
else
clss[0] = RMIClassLoader.loadClass(annotation, intfs[0]);
//assume all interfaces can be loaded by the same classloader
ClassLoader loader = clss[0].getClassLoader();
for (int i = 0; i < intfs.length; i++)
clss[i] = Class.forName(intfs[i], false, loader);
try {
return Proxy.getProxyClass(loader, clss);
} catch (IllegalArgumentException e) {
throw new ClassNotFoundException(null, e);
}
}
{
if (annotation == null)
clss[i] = RMIClassLoader.loadClass(intfs[i]);
else
clss[i] = RMIClassLoader.loadClass(annotation, intfs[i]);
}
ClassLoader loader;
if (clss.length > 0)
{
// Chain all class loaders (they may differ).
ArrayList loaders = new ArrayList(intfs.length);
ClassLoader cx;
for (int i = 0; i < clss.length; i++)
{
cx = clss[i].getClassLoader();
if (!loaders.contains(cx))
{
loaders.add(0, cx);
}
}
loader = new CombinedClassLoader(loaders);
}
else
loader = ClassLoader.getSystemClassLoader();
try
{
return Proxy.getProxyClass(loader, clss);
}
catch (IllegalArgumentException e)
{
throw new ClassNotFoundException(null, e);
}
}
protected Object readValue(Class valueClass) throws IOException, ClassNotFoundException {
if(valueClass.isPrimitive()){

620
libjava/classpath/gnu/java/rmi/server/UnicastServerRef.java
View file

@ -1,5 +1,5 @@
/* UnicastServerRef.java --
Copyright (c) 1996, 1997, 1998, 1999, 2002, 2003, 2004
Copyright (c) 1996, 1997, 1998, 1999, 2002, 2003, 2004, 2006
Free Software Foundation, Inc.
This file is part of GNU Classpath.
@ -43,263 +43,433 @@ import java.io.ObjectInputStream;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.rmi.Remote;
import java.rmi.RemoteException;
import java.rmi.server.ObjID;
import java.rmi.server.RMIServerSocketFactory;
import java.rmi.server.RemoteObjectInvocationHandler;
import java.rmi.server.RemoteRef;
import java.rmi.server.RemoteServer;
import java.rmi.server.RemoteStub;
import java.rmi.server.ServerNotActiveException;
import java.rmi.server.ServerRef;
import java.rmi.server.Skeleton;
import java.util.HashSet;
import java.util.Hashtable;
import java.util.Iterator;
public class UnicastServerRef
extends UnicastRef
implements ServerRef{ //SHOULD implement ServerRef
extends UnicastRef
{
final static private Class[] stubprototype = new Class[] { RemoteRef.class };
/**
* Use GNU Classpath v 0.20 SVUID for interoperability
*/
private static final long serialVersionUID = - 5585608108300801246L;
/**
* The class array, defining parameters of the jdk 1.2 RMI stub constructor.
*/
private static final Class[] stubprototype = new Class[] { RemoteRef.class };
/**
* The exported remote object itself.
*/
Remote myself; // save the remote object itself
/**
* The skeleton (if any), associated with the exported remote object.
*/
private Skeleton skel;
/**
* The stub, associated with the exported remote object (may be proxy class).
*/
private Remote stub;
/**
* The method table (RMI hash code to method) of the methods of the
* exported object.
*/
private Hashtable methods = new Hashtable();
Remote myself; //save the remote object itself
private Skeleton skel;
private RemoteStub stub;
private Hashtable methods = new Hashtable();
/**
* Used by serialization.
*/
UnicastServerRef()
{
}
/**
* Used by serialization.
*/
UnicastServerRef()
{
}
public UnicastServerRef(ObjID id, int port, RMIServerSocketFactory ssf)
throws RemoteException
{
super(id);
manager = UnicastConnectionManager.getInstance(port, ssf);
}
/**
* Export the object and return its remote stub. The method tries to locate
* existing stubs and skeletons. If this fails, the method instantiates the
* proxy stub class.
*
* Stubs and skeletons are always ignored (even if present) if the
* java.rmi.server.ignoreStubClasses property is set to true.
*
* @param obj the object being exported.
* @return the stub (existing class or proxy) of the exported object.
* @throws RemoteException if the export failed due any reason
*/
public Remote exportObject(Remote obj) throws RemoteException
{
if (myself == null)
{
myself = obj;
// Save it to server manager, to let client calls in the same VM to
// issue
// local call
manager.serverobj = obj;
public UnicastServerRef(ObjID id, int port, RMIServerSocketFactory ssf) throws RemoteException {
super(id);
manager = UnicastConnectionManager.getInstance(port, ssf);
}
String ignoreStubs;
ClassLoader loader =obj.getClass().getClassLoader();
// Stubs are always searched for the bootstrap classes that may have
// obsolete pattern and may still need also skeletons.
if (loader==null)
ignoreStubs = "false";
else
ignoreStubs = System.getProperty("java.rmi.server.ignoreStubClasses",
"false");
if (! ignoreStubs.equals("true"))
{
// Find and install the stub
Class cls = obj.getClass();
public RemoteStub exportObject(Remote obj) throws RemoteException {
if (myself == null) {
myself = obj;
// Save it to server manager, to let client calls in the same VM to issue
// local call
manager.serverobj = obj;
// where ist the _Stub? (check superclasses also)
Class expCls = expCls = findStubSkelClass(cls);
// Find and install the stub
Class cls = obj.getClass();
Class expCls;
try {
// where ist the _Stub? (check superclasses also)
expCls = findStubSkelClass(cls);
} catch (Exception ex) {
throw new RemoteException("can not find stubs for class: " + cls, ex);
}
if (expCls != null)
{
stub = (RemoteStub) getHelperClass(expCls, "_Stub");
// Find and install the skeleton (if there is one)
skel = (Skeleton) getHelperClass(expCls, "_Skel");
}
}
stub = (RemoteStub)getHelperClass(expCls, "_Stub");
if (stub == null) {
throw new RemoteException("failed to export: " + cls);
}
if (stub == null)
stub = createProxyStub(obj.getClass(), this);
// Find and install the skeleton (if there is one)
skel = (Skeleton)getHelperClass(expCls, "_Skel");
// Build hash of methods which may be called.
buildMethodHash(obj.getClass(), true);
// Build hash of methods which may be called.
buildMethodHash(obj.getClass(), true);
// Export it.
UnicastServer.exportObject(this);
}
// Export it.
UnicastServer.exportObject(this);
}
return (stub);
}
public RemoteStub exportObject(Remote remote, Object obj)
throws RemoteException
{
//FIX ME
return exportObject(remote);
}
public RemoteStub getStub(){
return stub;
}
public boolean unexportObject(Remote obj, boolean force) {
}
/**
* Get the stub (actual class or proxy) of the exported remote object.
*
* @return the remote stub (null if exportObject has not been called).
*/
public Remote getStub()
{
return stub;
}
/**
* Unexport the object (remove methods from the method hashcode table
* and call UnicastServer.unexportObject.
*
* @param obj the object being unexported
* @param force passed to the UnicastServer.unexportObject.
* @return value, returned by the UnicastServer.unexportObject.
*/
public boolean unexportObject(Remote obj, boolean force)
{
// Remove all hashes of methods which may be called.
buildMethodHash(obj.getClass(), false);
return UnicastServer.unexportObject(this, force);
}
}
/**
*
* The Subs/Skels might not there for the actual class, but maybe
* for one of the superclasses.
*
*/
private Class findStubSkelClass(Class startCls) throws Exception {
Class cls = startCls;
/**
* Return the class in the hierarchy for that the stub class is defined.
* The Subs/Skels might not there for the actual class, but maybe for one of
* the superclasses.
*
* @return the class having stub defined, null if none.
*/
private Class findStubSkelClass(Class startCls)
{
Class cls = startCls;
while (true) {
try {
String stubClassname = cls.getName() + "_Stub";
ClassLoader cl = cls.getClassLoader();
Class scls = cl == null ? Class.forName(stubClassname)
: cl.loadClass(stubClassname);
return cls; // found it
} catch (ClassNotFoundException e) {
Class superCls = cls.getSuperclass();
if (superCls == null
|| superCls == java.rmi.server.UnicastRemoteObject.class)
{
throw new Exception("Neither " + startCls
+ " nor one of their superclasses (like" + cls + ")"
+ " has a _Stub");
}
cls = superCls;
}
}
}
while (true)
{
try
{
String stubClassname = cls.getName() + "_Stub";
ClassLoader cl = cls.getClassLoader();
Class scls = cl == null ? Class.forName(stubClassname)
: cl.loadClass(stubClassname);
return cls; // found it
}
catch (ClassNotFoundException e)
{
Class superCls = cls.getSuperclass();
if (superCls == null
|| superCls == java.rmi.server.UnicastRemoteObject.class)
{
return null;
}
cls = superCls;
}
}
}
/**
* Get the helper (assisting) class with the given type.
*
* @param cls the class, for that the helper class is requested. This class
* and the requested helper class must share the same class loader.
*
* @param type the type of the assisting helper. The only currently supported
* non deprecated value is "_Stub" (load jdk 1.1 or 1.2 RMI stub). Another
* (deprecated) value is "_Skel" (load skeleton).
*
* @return the instantiated instance of the helper class or null if the
* helper class cannot be found or instantiated.
*/
private Object getHelperClass(Class cls, String type)
{
try
{
String classname = cls.getName();
ClassLoader cl = cls.getClassLoader();
Class scls = cl == null ? Class.forName(classname + type)
: cl.loadClass(classname + type);
if (type.equals("_Stub"))
{
try
{
// JDK 1.2 stubs
Constructor con = scls.getConstructor(stubprototype);
return (con.newInstance(new Object[] { this }));
}
catch (NoSuchMethodException e)
{
}
catch (InstantiationException e)
{
}
catch (IllegalAccessException e)
{
}
catch (IllegalArgumentException e)
{
}
catch (InvocationTargetException e)
{
}
// JDK 1.1 stubs
RemoteStub stub = (RemoteStub) scls.newInstance();
UnicastRemoteStub.setStubRef(stub, this);
return (stub);
}
else
{
// JDK 1.1 skel
return (scls.newInstance());
}
}
catch (ClassNotFoundException e)
{
}
catch (InstantiationException e)
{
}
catch (IllegalAccessException e)
{
}
return (null);
}
public String getClientHost() throws ServerNotActiveException
{
return RemoteServer.getClientHost();
}
/**
* Build the method has code table and put it into {@link #methods}
* (mapping RMI hashcode tos method). The same method is used to remove
* the table.
*
* @param cls the class for that the method table is built.
* @param build if true, the class methods are added to the table. If
* false, they are removed from the table.
*/
private void buildMethodHash(Class cls, boolean build)
{
Method[] meths = cls.getMethods();
for (int i = 0; i < meths.length; i++)
{
/* Don't need to include any java.xxx related stuff */
if (meths[i].getDeclaringClass().getName().startsWith("java."))
{
continue;
}
long hash = RMIHashes.getMethodHash(meths[i]);
if (build)
methods.put(new Long(hash), meths[i]);
else
methods.remove(new Long(hash));
// System.out.println("meth = " + meths[i] + ", hash = " + hash);
}
}
private Object getHelperClass(Class cls, String type) {
try {
String classname = cls.getName();
ClassLoader cl = cls.getClassLoader();
Class scls = cl == null ? Class.forName(classname + type)
: cl.loadClass(classname + type);
if (type.equals("_Stub")) {
try {
// JDK 1.2 stubs
Constructor con = scls.getConstructor(stubprototype);
return (con.newInstance(new Object[]{this}));
}
catch (NoSuchMethodException e) {
}
catch (InstantiationException e) {
}
catch (IllegalAccessException e) {
}
catch (IllegalArgumentException e) {
}
catch (InvocationTargetException e) {
}
// JDK 1.1 stubs
RemoteStub stub = (RemoteStub)scls.newInstance();
UnicastRemoteStub.setStubRef(stub, this);
return (stub);
}
else {
// JDK 1.1 skel
return (scls.newInstance());
}
}
catch (ClassNotFoundException e) {
}
catch (InstantiationException e) {
}
catch (IllegalAccessException e) {
}
return (null);
}
public String getClientHost() throws ServerNotActiveException {
return RemoteServer.getClientHost();
}
private void buildMethodHash(Class cls, boolean build) {
Method[] meths = cls.getMethods();
for (int i = 0; i < meths.length; i++) {
/* Don't need to include any java.xxx related stuff */
if (meths[i].getDeclaringClass().getName().startsWith("java.")) {
continue;
}
long hash = RMIHashes.getMethodHash(meths[i]);
if(build)
methods.put(new Long (hash), meths[i]);
else
methods.remove(new Long (hash));
//System.out.println("meth = " + meths[i] + ", hash = " + hash);
}
}
Class getMethodReturnType(int method, long hash) throws Exception
{
if (method == -1) {
Method meth = (Method)methods.get(new Long (hash));
Class getMethodReturnType(int method, long hash) throws Exception
{
if (method == - 1)
{
Method meth = (Method) methods.get(new Long(hash));
return meth.getReturnType();
}else
return null;
}
}
else
return null;
}
public Object incomingMessageCall(UnicastConnection conn, int method, long hash) throws Exception {
//System.out.println("method = " + method + ", hash = " + hash);
// If method is -1 then this is JDK 1.2 RMI - so use the hash
// to locate the method
if (method == -1) {
Method meth = (Method)methods.get(new Long (hash));
//System.out.println("class = " + myself.getClass() + ", meth = " + meth);
if (meth == null) {
throw new NoSuchMethodException();
}
public Object incomingMessageCall(UnicastConnection conn, int method,
long hash) throws Exception
{
// System.out.println("method = " + method + ", hash = " + hash);
// If method is -1 then this is JDK 1.2 RMI - so use the hash
// to locate the method
if (method == - 1)
{
Method meth = (Method) methods.get(new Long(hash));
// System.out.println("class = " + myself.getClass() + ", meth = " +
// meth);
if (meth == null)
{
throw new NoSuchMethodException();
}
ObjectInputStream in = conn.getObjectInputStream();
int nrargs = meth.getParameterTypes().length;
Object[] args = new Object[nrargs];
for (int i = 0; i < nrargs; i++) {
/**
* For debugging purposes - we don't handle CodeBases
* quite right so we don't always find the stubs. This
* lets us know that.
*/
try {
// need to handle primitive types
args[i] = ((RMIObjectInputStream)in).readValue(meth.getParameterTypes()[i]);
}
catch (Exception t) {
t.printStackTrace();
throw t;
}
}
//We must reinterpret the exception thrown by meth.invoke()
//return (meth.invoke(myself, args));
Object ret = null;
try{
ret = meth.invoke(myself, args);
}catch(InvocationTargetException e){
Throwable cause = e.getTargetException();
if (cause instanceof Exception) {
throw (Exception)cause;
}
else if (cause instanceof Error) {
throw (Error)cause;
}
else {
throw new Error("The remote method threw a java.lang.Throwable that is neither java.lang.Exception nor java.lang.Error.", e);
}
}
return ret;
}
// Otherwise this is JDK 1.1 style RMI - we find the skeleton
// and invoke it using the method number. We wrap up our
// connection system in a UnicastRemoteCall so it appears in a
// way the Skeleton can handle.
else {
if (skel == null) {
throw new NoSuchMethodException();
}
UnicastRemoteCall call = new UnicastRemoteCall(conn);
skel.dispatch(myself, call, method, hash);
if (!call.isReturnValue())
return RMIVoidValue.INSTANCE;
else
return (call.returnValue());
}
}
ObjectInputStream in = conn.getObjectInputStream();
int nrargs = meth.getParameterTypes().length;
Object[] args = new Object[nrargs];
for (int i = 0; i < nrargs; i++)
{
/**
* For debugging purposes - we don't handle CodeBases quite right so
* we don't always find the stubs. This lets us know that.
*/
try
{
// need to handle primitive types
args[i] = ((RMIObjectInputStream) in)
.readValue(meth.getParameterTypes()[i]);
}
catch (Exception t)
{
t.printStackTrace();
throw t;
}
}
//We must reinterpret the exception thrown by meth.invoke()
//return (meth.invoke(myself, args));
Object ret = null;
try
{
ret = meth.invoke(myself, args);
}
catch (InvocationTargetException e)
{
Throwable cause = e.getTargetException();
if (cause instanceof Exception)
{
throw (Exception) cause;
}
else if (cause instanceof Error)
{
throw (Error) cause;
}
else
{
throw new Error(
"The remote method threw a java.lang.Throwable that"+
" is neither java.lang.Exception nor java.lang.Error.",
e);
}
}
return ret;
}
// Otherwise this is JDK 1.1 style RMI - we find the skeleton
// and invoke it using the method number. We wrap up our
// connection system in a UnicastRemoteCall so it appears in a
// way the Skeleton can handle.
else
{
if (skel == null)
{
throw new NoSuchMethodException();
}
UnicastRemoteCall call = new UnicastRemoteCall(conn);
skel.dispatch(myself, call, method, hash);
if (! call.isReturnValue())
return RMIVoidValue.INSTANCE;
else
return (call.returnValue());
}
}
/**
* Create the 1.2 proxy stub in the case when the pre-generated stub is not
* available of the system is explicitly instructed to use proxy stubs.
*
* @param stubFor the class for that the proxy class must be constructed.
* @param reference the remote reference, used to find the given object
*
* @return the applicable proxy stub.
*
* @author Audrius Meskauskas (AudriusA@Bioinformatics.org)
*/
Remote createProxyStub(Class stubFor, RemoteRef reference)
{
// Collect all interfaces, implemented by stubFor and derived from
// Remote (also Remote itself):
HashSet interfaces = new HashSet();
Class c = stubFor;
Class[] intfs;
while (c != null)
{
intfs = c.getInterfaces();
for (int i = 0; i < intfs.length; i++)
{
if (Remote.class.isAssignableFrom(intfs[i]))
interfaces.add(intfs[i]);
}
c = c.getSuperclass();
}
intfs = new Class[interfaces.size()];
Iterator it = interfaces.iterator();
for (int i = 0; i < intfs.length; i++)
intfs[i] = (Class) it.next();
RemoteObjectInvocationHandler handler =
new RemoteObjectInvocationHandler(reference);
Object proxy =
Proxy.newProxyInstance(stubFor.getClassLoader(), intfs, handler);
return (Remote) proxy;
}
}