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+/* Connected_objects.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;
+
+import java.util.Iterator;
+import java.util.Map;
+import java.util.Set;
+import java.util.TreeMap;
+
+/**
+ * The repository of objects, that have been connected to the
+ * {@link FunctionalORB} by the method
+ * {@link ORB.connect(org.omg.CORBA.Object)}.
+ *
+ * @author Audrius Meskauskas (AudriusA@Bioinformatics.org)
+ */
+public class Connected_objects
+{
+ /**
+ * The reference data about the connected object.
+ */
+ public class cObject
+ {
+ /**
+ * Create an initialised instance.
+ */
+ cObject(org.omg.CORBA.Object _object, int _port, byte[] _key,
+ java.lang.Object an_identity
+ )
+ {
+ object = _object;
+ port = _port;
+ key = _key;
+ identity = an_identity;
+ }
+
+ /**
+ * The object.
+ */
+ public final org.omg.CORBA.Object object;
+
+ /**
+ * The port on that the object is connected.
+ */
+ public final int port;
+
+ /**
+ * The object key.
+ */
+ public final byte[] key;
+
+ /**
+ * The shared serving identity (usually POA) or null if no such
+ * applicable.
+ */
+ public final java.lang.Object identity;
+ }
+
+ /**
+ * The free number to give for the next instance.
+ * This field is incremented each time the
+ * new collection of the connected objects is created.
+ * Each collection has its own unique instance number.
+ */
+ private static long free_object_number;
+
+ /**
+ * The map of the all connected objects, maps the object key to the
+ * object.
+ */
+ private Map objects = new TreeMap(new ByteArrayComparator());
+
+ /**
+ * Get the record of the stored object.
+ *
+ * @param stored_object the stored object
+ *
+ * @return the record about the stored object, null if
+ * this object is not stored here.
+ */
+ public cObject getKey(org.omg.CORBA.Object stored_object)
+ {
+ synchronized (objects)
+ {
+ Map.Entry item;
+ Iterator iter = objects.entrySet().iterator();
+ cObject ref;
+
+ while (iter.hasNext())
+ {
+ item = (Map.Entry) iter.next();
+ ref = (cObject) item.getValue();
+ if (stored_object.equals(ref.object) ||
+ stored_object._is_equivalent(ref.object)
+ )
+ return ref;
+ }
+ }
+
+ return null;
+ }
+
+ /**
+ * Add the new object to the repository. The object key is
+ * generated automatically.
+ *
+ * @param object the object to add.
+ * @param port on that the ORB will be listening to the remote
+ * invocations.
+ *
+ * @return the newly created object record.
+ */
+ public cObject add(org.omg.CORBA.Object object, int port)
+ {
+ return add(generateObjectKey(object), object, port, null);
+ }
+
+ /**
+ * Add the new object to the repository.
+ *
+ * @param key the object key.
+ * @param object the object to add.
+ * @param port the port, on that the ORB will be listening on the
+ * remote invocations.
+ */
+ public cObject add(byte[] key, org.omg.CORBA.Object object, int port,
+ java.lang.Object identity
+ )
+ {
+ cObject rec = new cObject(object, port, key, identity);
+ synchronized (objects)
+ {
+ objects.put(key, rec);
+ }
+ return rec;
+ }
+
+ /**
+ * Get the stored object.
+ *
+ * @param key the key (in the byte array form).
+ *
+ * @return the matching object, null if none is matching.
+ */
+ public cObject get(byte[] key)
+ {
+ synchronized (objects)
+ {
+ return (cObject) objects.get(key);
+ }
+ }
+
+ /**
+ * Get the map entry set.
+ */
+ public Set entrySet()
+ {
+ return objects.entrySet();
+ }
+
+ /**
+ * Remove the given object.
+ *
+ * @param object the object to remove.
+ */
+ public void remove(org.omg.CORBA.Object object)
+ {
+ synchronized (objects)
+ {
+ cObject ref = getKey(object);
+ if (ref != null)
+ objects.remove(ref.key);
+ }
+ }
+
+ /**
+ * Remove the given object, indiciating it by the key.
+ *
+ * @param object the object to remove.
+ */
+ public void remove(byte[] key)
+ {
+ objects.remove(key);
+ }
+
+ /**
+ * Generate the object key, unique in the currently
+ * running java virtual machine.
+ *
+ * The generated key includes the object class name
+ * and the absolute instance number.
+ *
+ * @return the generated key.
+ */
+ protected byte[] generateObjectKey(org.omg.CORBA.Object object)
+ {
+ return (object.getClass().getName() + ":" + getFreeInstanceNumber()).getBytes();
+ }
+
+ /**
+ * Get next free instance number.
+ */
+ private static synchronized long getFreeInstanceNumber()
+ {
+ long instance_number = free_object_number;
+ free_object_number++;
+ return instance_number;
+ }
+
+ /**
+ * Get the number of the connected objects.
+ *
+ * @return the size of the internal map.
+ */
+ public int size()
+ {
+ return objects.size();
+ }
+}