| /* gnuPoaCurrent.java -- |
| Copyright (C) 2005 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.CORBA.Poa; |
| |
| import org.omg.CORBA.CurrentHelper; |
| import org.omg.CORBA.portable.ObjectImpl; |
| import org.omg.PortableServer.Current; |
| import org.omg.PortableServer.CurrentOperations; |
| import org.omg.PortableServer.CurrentPackage.NoContext; |
| import org.omg.PortableServer.POA; |
| |
| import java.util.Iterator; |
| import java.util.Map; |
| import java.util.TreeMap; |
| |
| /** |
| * Supports the "Poa current" concept, providing the id and poa of |
| * the object currently being served. There is only one instance |
| * of this class per ORB. It maintains a thread to information map. |
| * |
| * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) |
| */ |
| public class gnuPoaCurrent |
| extends ObjectImpl |
| implements Current |
| { |
| /** |
| * The table, mapping threads to records. |
| */ |
| private TreeMap threads = new TreeMap(); |
| |
| /** |
| * Get the array of POA current repository ids. |
| * |
| * @return a single member array, containing value, returned |
| * by the {@link CurrentHelper#id}, normally |
| * "IDL:omg.org/PortableServer/Current:2.3". |
| */ |
| public String[] _ids() |
| { |
| return new String[] { CurrentHelper.id() }; |
| } |
| |
| /** |
| * Get the object id, associated with the thread currently being served. |
| * |
| * @throws NoContext if the current thread is not associated with any |
| * object. |
| */ |
| public byte[] get_object_id() |
| throws NoContext |
| { |
| CurrentOperations r; |
| synchronized (threads) |
| { |
| r = (CurrentOperations) threads.get(Thread.currentThread().getName()); |
| } |
| if (r != null) |
| return r.get_object_id(); |
| else |
| throw new NoContext(Thread.currentThread().getName()); |
| } |
| |
| /** |
| * Get the object POA, associated with the thread currently being served. |
| * |
| * @throws NoContext if the current thread is not associated with any |
| * object. |
| */ |
| public POA get_POA() |
| throws NoContext |
| { |
| CurrentOperations r; |
| synchronized (threads) |
| { |
| r = (CurrentOperations) threads.get(Thread.currentThread().getName()); |
| } |
| if (r != null) |
| return r.get_POA(); |
| else |
| throw new NoContext(Thread.currentThread().getName()); |
| } |
| |
| /** |
| * Add the entry to the map. |
| */ |
| public void put(Thread t, CurrentOperations record) |
| { |
| synchronized (threads) |
| { |
| threads.put(t.getName(), record); |
| } |
| } |
| |
| /** |
| * Check if this Poa has some running threads. |
| */ |
| public boolean has(POA poa) |
| { |
| synchronized (threads) |
| { |
| Iterator iter = threads.entrySet().iterator(); |
| while (iter.hasNext()) |
| { |
| Map.Entry item = (Map.Entry) iter.next(); |
| try |
| { |
| if (((CurrentOperations) item.getValue()).get_POA() == poa) |
| { |
| return true; |
| } |
| } |
| catch (NoContext ex) |
| { |
| throw new InternalError(); |
| } |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Check if this thread is registered. |
| */ |
| public boolean has(Thread t) |
| { |
| synchronized (threads) |
| { |
| return threads.containsKey(t.getName()); |
| } |
| } |
| |
| /** |
| * Remove the entry from the map. |
| */ |
| public void remove(Thread t) |
| { |
| synchronized (threads) |
| { |
| threads.remove(t.getName()); |
| } |
| } |
| } |