2006-03-17 Audrius Meskauskas <AudriusA@Bioinformatics.org>

	* java/rmi/activation/Activatable.java: Implemented.
	java/rmi/activation/ActivationDesc.java: Implemented.
	java/rmi/activation/ActivationGroup.java: Implemented.
	java/rmi/activation/ActivationGroupDesc.java: Implemented.
	java/rmi/activation/ActivationID.java: Implemented.
	java/rmi/activation/ActivationSystem.java: Implemented.
	* gnu/java/rmi/server/UnicastServerRef.java
	(exportObject, incommingMessageCall): Documented.
	* java/rmi/activation/package.html: Documented.
	* java/rmi/server/ObjID.java (objNum, space): Made package
	protected.
	* gnu/java/rmi/server/UnicastServer.java: Rewritten.
	* gnu/java/rmi/server/CombinedClassLoader.java (constructor):
	Iteration bug fix.
	* gnu/java/rmi/activation/ActivationSystemTransient.java: New file.
	gnu/java/rmi/activation/BidiTable.java: New file.
	gnu/java/rmi/activation/DefaultActivationGroup.java: New file.
	gnu/java/rmi/activation/DefaultActivationSystem.java: New file.
	gnu/java/rmi/server/ActivatableServerRef.java: New file.

1 files changed, 146 insertions, 0 deletions

diff --git a/gnu/java/rmi/server/ActivatableServerRef.java b/gnu/java/rmi/server/ActivatableServerRef.java
new file mode 100644
index 000000000..6463f40d2
--- /dev/null
+++ b/gnu/java/rmi/server/ActivatableServerRef.java
@@ -0,0 +1,146 @@
+/* ActivatableServerRef.java -- The activatable server reference
+   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.rmi.Remote;
+import java.rmi.RemoteException;
+import java.rmi.activation.ActivationID;
+import java.rmi.server.ObjID;
+import java.rmi.server.RMIServerSocketFactory;
+
+/**
+ * The activatable server reference works like UnicastServerReference, but it
+ * additionally activates the associated object on demand, during the first
+ * incoming call. When UnicastServerReference takes the working reference,
+ * the ActivatableServerRef takes the activation id instead.
+ * 
+ * @author Audrius Meskauskas (Audriusa@Bioinformatics.org)
+ */
+public class ActivatableServerRef extends UnicastServerRef
+{
+  /**
+   * Use SVUID for interoperability
+   */
+  private static final long serialVersionUID = 1;
+  
+  /**
+   * The object activation id.
+   */
+  public ActivationID actId;
+
+  /**
+   * Used by serialization only
+   */
+  public ActivatableServerRef()
+  {
+    super();
+  }
+  
+  /**
+   * Create the new activatable server reference that will activate object on
+   * the first call using the given activation id.
+   */
+  public ActivatableServerRef(ObjID id, ActivationID anId, int aPort,
+                              RMIServerSocketFactory ssFactory)
+      throws RemoteException
+  {
+    super(id, aPort, ssFactory);
+    actId = anId;
+    
+    // The object ID will be placed in the object map and should deliver
+    // incoming call to {@link #incommingMessageCall}. The object itself
+    // is currently null.
+    UnicastServer.exportActivatableObject(this);
+  }
+  
+  /**
+   * Inactivate the object (stop the server).
+   */
+  public void inactivate()
+  {
+    manager.stopServer();
+  }
+  
+  /**
+   * Activate the object (normally during the first call).
+   */
+  protected void activate() throws RemoteException
+  {
+    try
+      {
+        Remote self = actId.activate(false);
+        
+        // This will call UnicastServer.exportObject, replacing null by
+        // the activated object (self) in the object map.
+        exportObject(self);
+      }
+    catch (RemoteException rex)
+      {
+        throw rex;
+      }
+    catch (Exception exc)
+      {
+        RemoteException rx = new RemoteException("Activation failed.");
+        rx.initCause(exc);
+        throw rx;
+      }
+  }
+
+  /**
+   * If the object is not active, activate it first.
+   */
+  public Object incomingMessageCall(UnicastConnection conn, int method,
+                                    long hash) throws Exception
+  {
+    if (myself == null)
+      activate();
+    return super.incomingMessageCall(conn, method, hash);
+  }
+
+  /**
+   * Export object and ensure it is present in the server activation table 
+   * as well.
+   */
+  public Remote exportObject(Remote obj) throws RemoteException
+  {
+    Remote r = super.exportObject(obj);
+    UnicastServer.registerActivatable(this);
+    return r;
+  }
+}