/*
 * Copyright (c) 1996, 2002, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code 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
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */
package java.rmi.server;

import java.rmi.*;
import sun.rmi.server.UnicastServerRef;
import sun.rmi.runtime.Log;

The RemoteServer class is the common superclass to server
implementations and provides the framework to support a wide range
of remote reference semantics.  Specifically, the functions needed
to create and export remote objects (i.e. to make them remotely
available) are provided abstractly by RemoteServer and
concretely by its subclass(es).
Author:
 Ann Wollrath
Since:
  JDK1.1/**
 * The <code>RemoteServer</code> class is the common superclass to server
 * implementations and provides the framework to support a wide range
 * of remote reference semantics.  Specifically, the functions needed
 * to create and export remote objects (i.e. to make them remotely
 * available) are provided abstractly by <code>RemoteServer</code> and
 * concretely by its subclass(es).
 *
 * @author  Ann Wollrath
 * @since   JDK1.1
 */
public abstract class RemoteServer extends RemoteObject
{
    /* indicate compatibility with JDK 1.1.x version of class */
    private static final long serialVersionUID = -4100238210092549637L;

    
Constructs a RemoteServer.
Since:
JDK1.1/**
     * Constructs a <code>RemoteServer</code>.
     * @since JDK1.1
     */
    protected RemoteServer() {
        super();
    }

    
Constructs a RemoteServer with the given reference type.
Params:
ref – the remote reference
Since:
JDK1.1/**
     * Constructs a <code>RemoteServer</code> with the given reference type.
     *
     * @param ref the remote reference
     * @since JDK1.1
     */
    protected RemoteServer(RemoteRef ref) {
        super(ref);
    }

    
Returns a string representation of the client host for the
remote method invocation being processed in the current thread.
Throws:
ServerNotActiveException – if no remote method invocation
is being processed in the current thread
Returns:
 a string representation of the client host
Since:
  JDK1.1/**
     * Returns a string representation of the client host for the
     * remote method invocation being processed in the current thread.
     *
     * @return  a string representation of the client host
     *
     * @throws  ServerNotActiveException if no remote method invocation
     * is being processed in the current thread
     *
     * @since   JDK1.1
     */
    public static String getClientHost() throws ServerNotActiveException {
        return sun.rmi.transport.tcp.TCPTransport.getClientHost();
    }

    
Log RMI calls to the output stream out. If
out is null, call logging is turned off.
If there is a security manager, its
checkPermission method will be invoked with a
java.util.logging.LoggingPermission("control")
permission; this could result in a SecurityException.
Params:
out – the output stream to which RMI calls should be logged
Throws:
SecurityException –  if there is a security manager and
         the invocation of its checkPermission method
         fails
See Also:
getLog
Since:
JDK1.1/**
     * Log RMI calls to the output stream <code>out</code>. If
     * <code>out</code> is <code>null</code>, call logging is turned off.
     *
     * <p>If there is a security manager, its
     * <code>checkPermission</code> method will be invoked with a
     * <code>java.util.logging.LoggingPermission("control")</code>
     * permission; this could result in a <code>SecurityException</code>.
     *
     * @param   out the output stream to which RMI calls should be logged
     * @throws  SecurityException  if there is a security manager and
     *          the invocation of its <code>checkPermission</code> method
     *          fails
     * @see #getLog
     * @since JDK1.1
     */
    public static void setLog(java.io.OutputStream out)
    {
        logNull = (out == null);
        UnicastServerRef.callLog.setOutputStream(out);
    }

    
Returns stream for the RMI call log.
See Also:
setLog
Returns:
the call log
Since:
JDK1.1/**
     * Returns stream for the RMI call log.
     * @return the call log
     * @see #setLog
     * @since JDK1.1
     */
    public static java.io.PrintStream getLog()
    {
        return (logNull ? null : UnicastServerRef.callLog.getPrintStream());
    }

    // initialize log status
    private static boolean logNull = !UnicastServerRef.logCalls;
}