diff options
Diffstat (limited to 'libjava/classpath/java/rmi/server/RemoteObject.java')
| -rw-r--r-- | libjava/classpath/java/rmi/server/RemoteObject.java | 202 |
1 files changed, 0 insertions, 202 deletions
diff --git a/libjava/classpath/java/rmi/server/RemoteObject.java b/libjava/classpath/java/rmi/server/RemoteObject.java deleted file mode 100644 index 220c1c9..0000000 --- a/libjava/classpath/java/rmi/server/RemoteObject.java +++ /dev/null @@ -1,202 +0,0 @@ -/* RemoteObject.java -- - Copyright (c) 1996, 1997, 1998, 1999, 2004 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 java.rmi.server; - -import java.io.IOException; -import java.io.ObjectInputStream; -import java.io.ObjectOutput; -import java.io.ObjectOutputStream; -import java.io.Serializable; -import java.rmi.NoSuchObjectException; -import java.rmi.Remote; -import java.rmi.UnmarshalException; -import java.util.WeakHashMap; - -public abstract class RemoteObject - implements Remote, Serializable { - -private static final long serialVersionUID = -3215090123894869218l; - -protected transient RemoteRef ref; - -private static final WeakHashMap stubs = new WeakHashMap(); - -protected RemoteObject() { - this(null); -} - -protected RemoteObject(RemoteRef newref) { - ref = newref; -} - -public RemoteRef getRef() { - return (ref); -} - -synchronized static void addStub(Remote obj, Remote stub) -{ - stubs.put(obj, stub); -} - -synchronized static void deleteStub(Remote obj) -{ - stubs.remove(obj); -} - - public static Remote toStub(Remote obj) throws NoSuchObjectException - { - Remote stub = (Remote)stubs.get(obj); - - if (stub == null) - throw new NoSuchObjectException(obj.getClass().getName()); - - return stub; - } - -public int hashCode() { - if (ref == null) { - return (0); - } - else { - return (ref.hashCode()); - } -} - -public boolean equals(Object obj) { - // We only compare references. - return (this == obj); -} - -/** - * Get the string representation of this remote object. - */ - public String toString() - { - if (ref == null) - return getClass ().toString (); - return (ref.toString ()); - } - - /** - * Read the remote object from the input stream. Expects the class name - * without package first. Then the method creates and assigns the {@link #ref} - * an instance of this class and calls its .readExternal method. The standard - * packageless class names are UnicastRef, UnicastRef2, UnicastServerRef, - * UnicastServerRef2, ActivatableRef or ActivatableServerRef. - * - * @param in the stream to read from - * @throws IOException if the IO exception occurs - * @throws ClassNotFoundException if the class with the given name is not - * present in the package gnu.java.rmi.server (for the case of the - * GNU Classpath. - */ - private void readObject(ObjectInputStream in) throws IOException, - ClassNotFoundException - { - String cname = in.readUTF(); - if (! cname.equals("")) - { - if (cname.equals("UnicastRef2")) - { - // hack for interoperating with JDK - cname = "UnicastRef"; - in.read(); // some unknown UnicastRef2 field - } - - // It would be nice to use RemoteRef.packagePrefix here, but for binary - // compatibility with the JDK that has to contain "sun.rmi.server"... - cname = "gnu.java.rmi.server." + cname; - try - { - Class cls = Class.forName(cname); - ref = (RemoteRef) cls.newInstance(); - } - catch (InstantiationException e1) - { - throw new UnmarshalException("failed to create ref", e1); - } - catch (IllegalAccessException e2) - { - throw new UnmarshalException("failed to create ref", e2); - } - ref.readExternal(in); - } - else - { - ref = (RemoteRef) in.readObject(); - } - } - - /** - * Write the remote object to the output stream. This method first calls - * {@link RemoteRef#getRefClass(ObjectOutput)} on the {@link #ref} to get the - * class name without package, writes this name and then calls the - * ref.writeObject to write the data. The standard packageless class names are - * UnicastRef, UnicastRef2, UnicastServerRef, UnicastServerRef2, - * ActivatableRef or ActivatableServerRef. The empty string with the - * subsequently following serialized ref instance be written if the - * ref.getRefClass returns null. - * - * @param out the stream to write to - * @throws IOException if one occurs during writing - * @throws ClassNotFoundException never in this implementation (specified as - * part of the API standard) - * @throws UnmarshalException if the remote reference of this remote object is - * null. - */ - private void writeObject(ObjectOutputStream out) throws IOException, - ClassNotFoundException - { - if (ref == null) - { - throw new UnmarshalException("no ref to serialize"); - } - String cname = ref.getRefClass(out); - if (cname != null && cname.length() > 0) - { - out.writeUTF(cname); - ref.writeExternal(out); - } - else - { - out.writeUTF(""); - out.writeObject(ref); - } - } - -} |