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RMIIncomingThread.java: New file.

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2004-03-20  Norbert Frese  <postfach@nfrese.net>

	* gnu/java/rmi/server/RMIIncomingThread.java: New file.
	* gcc/libjava/gnu/java/rmi/server/UnicastConnection.java:
	Create a new RMIObjectOuputStream/RMIObjectInputStream for every
	rmi-message.
	(getObjectInputStream): Return object reference, throw IOException if null.
	(startObjectInputStream): Create new RMIObjectInputStream on top of 'din'.
	(getObjectOutputStream): Return object reference, throw IOException if null.
	(startObjectOutputStream): Create new RMIObjectOutputStream on top of 'dout'.
	* gcc/libjava/gnu/java/rmi/server/UnicastConnectionManager.java:
	(UnicastConnectionManager): Throw RemoteException if port is not available.
	(getInstance): Throw RemoteException.
	(run): Lookup client host and attach it to new RMIIncomingThread for later retrieval.
	* gcc/libjava/gnu/java/rmi/server/UnicastRef.java:
	Start a new RMIObjectInputStream/RMIObjectOutputStream for every rmi-message.
	Collect Exceptions which are returned by a rmi-call and fix void returns.
	* gcc/libjava/gnu/java/rmi/server/UnicastRemoteCall.java:
	Start a new RMIObjectInputStream/RMIObjectOutputStream for every rmi-message.
	* gcc/libjava/gnu/java/rmi/server/UnicastServer.java:
	(dispatch): Answer ping messages which are sent by other java implementions.
	(incomingMessageCall): Start a new RMIObjectInputStream/RMIObjectOutputStream
	for every rmi-message and fix void return problems.
	* gcc/libjava/gnu/java/rmi/server/UnicastServerRef.java
	(UnicastServerRef): Throw RemoteException.
	(exportObject): Find the class up the class hierarchy which has a _Stub generated by rmic.
	In some situations it is necessary to export a subclass of the class which has the _Stub.
	For instance when the class with has the _Stub is abstract.
	(findStubSkelClass): New method which looks for the class which has the _Stub.
	(getClientHost): Implementated.
	* gcc/libjava/java/rmi/server/RemoteServer.java
	(getClientHost): Implementated.
	* gcc/libjava/Makefile.am (rmi_java_source_files):
	Added gnu/java/rmi/server/RMIIncomingThread.java.
	* Makefile.in: Regenerated.

From-SVN: r79755
This commit is contained in:
Norbert Frese 2004-03-20 20:30:56 +00:00 • committed by Michael Koch
parent 079f946dad
commit f903e73b80
11 changed files with 247 additions and 34 deletions
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51
libjava/gnu/java/rmi/server/UnicastServerRef.java
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@ -46,6 +46,7 @@ import java.rmi.RemoteException;
import java.rmi.server.RemoteStub;
import java.rmi.server.ObjID;
import java.rmi.server.ServerRef;
import java.rmi.server.RemoteServer;
import java.rmi.server.RemoteRef;
import java.rmi.server.ServerNotActiveException;
import java.rmi.server.RMIClientSocketFactory;
@ -85,7 +86,7 @@ UnicastServerRef()
{
}
public UnicastServerRef(ObjID id, int port, RMIServerSocketFactory ssf) {
public UnicastServerRef(ObjID id, int port, RMIServerSocketFactory ssf) throws RemoteException {
super(id);
manager = UnicastConnectionManager.getInstance(port, ssf);
}
@ -99,13 +100,21 @@ public RemoteStub exportObject(Remote obj) throws RemoteException {
// Find and install the stub
Class cls = obj.getClass();
stub = (RemoteStub)getHelperClass(cls, "_Stub");
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);
}
stub = (RemoteStub)getHelperClass(expCls, "_Stub");
if (stub == null) {
throw new RemoteException("failed to export: " + cls);
}
// Find and install the skeleton (if there is one)
skel = (Skeleton)getHelperClass(cls, "_Skel");
skel = (Skeleton)getHelperClass(expCls, "_Skel");
// Build hash of methods which may be called.
buildMethodHash(obj.getClass(), true);
@ -135,6 +144,38 @@ public boolean unexportObject(Remote obj, boolean force) {
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;
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;
}
}
}
private Object getHelperClass(Class cls, String type) {
try {
String classname = cls.getName();
@ -176,8 +217,10 @@ private Object getHelperClass(Class cls, String type) {
return (null);
}
public String getClientHost() throws ServerNotActiveException {
throw new Error("Not implemented");
return RemoteServer.getClientHost();
}
private void buildMethodHash(Class cls, boolean build) {