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130 lines
3.7 KiB
Java
130 lines
3.7 KiB
Java
/*
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Copyright (c) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package java.rmi.server;
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import java.io.Serializable;
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import java.rmi.Remote;
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import java.rmi.NoSuchObjectException;
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import java.rmi.UnmarshalException;
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import java.rmi.server.RemoteRef;
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import java.io.ObjectInputStream;
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import java.io.ObjectOutputStream;
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import java.io.IOException;
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import java.lang.ClassNotFoundException;
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import java.lang.InstantiationException;
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import java.lang.IllegalAccessException;
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public abstract class RemoteObject
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implements Remote, Serializable {
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public static final long serialVersionUID = -3215090123894869218l;
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protected transient RemoteRef ref;
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protected RemoteObject() {
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this(null);
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}
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protected RemoteObject(RemoteRef newref) {
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ref = newref;
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}
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public RemoteRef getRef() {
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return (ref);
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}
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public static Remote toStub(Remote obj) throws NoSuchObjectException {
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throw new Error("Not implemented");
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}
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public int hashCode() {
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if (ref == null) {
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return (0);
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}
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else {
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return (ref.hashCode());
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}
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}
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public boolean equals(Object obj) {
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// We only compare references.
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return (this == obj);
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}
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public String toString() {
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return (ref.toString());
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}
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private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
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String cname = in.readUTF();
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if (!cname.equals("")) {
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cname = RemoteRef.packagePrefix + '.' + cname;
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try {
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Class cls = Class.forName(cname);
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ref = (RemoteRef)cls.newInstance();
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}
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catch (InstantiationException e1) {
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throw new UnmarshalException("failed to create ref");
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}
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catch (IllegalAccessException e2) {
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throw new UnmarshalException("failed to create ref");
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}
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ref.readExternal(in);
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}
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else {
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ref = (RemoteRef)in.readObject();
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}
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}
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private void writeObject(ObjectOutputStream out) throws IOException, ClassNotFoundException {
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if (ref == null) {
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throw new UnmarshalException("no ref to serialize");
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}
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String cname = ref.getRefClass(out);
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if (cname != null && cname.length() > 0) {
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out.writeUTF(cname);
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ref.writeExternal(out);
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}
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else {
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out.writeUTF("");
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out.writeObject(ref);
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}
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}
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}
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