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/*
* Copyright 1996-2002 Sun Microsystems, Inc. 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. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.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 <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 <code>RemoteServer</code>.
* @since JDK1.1
*/
protected RemoteServer() {
super();
}
/**
* 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.
*
* @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 <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.
* @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;
}
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