1 /*
   2  * Copyright (c) 2002, 2007, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package javax.management.remote.rmi;
  27 
  28 import java.io.IOException;
  29 import java.rmi.Remote;
  30 import java.rmi.RemoteException;
  31 
  32 /**
  33  * <p>RMI object used to establish connections to an RMI connector.
  34  * There is one Remote object implementing this interface for each RMI
  35  * connector.</p>
  36  *
  37  * <p>User code does not usually refer to this interface.  It is
  38  * specified as part of the public API so that different
  39  * implementations of that API will interoperate.</p>
  40  *
  41  * @since 1.5
  42  */
  43 public interface RMIServer extends Remote {
  44     /**
  45      * <p>The version of the RMI Connector Protocol understood by this
  46      * connector server.  This is a string with the following format:</p>
  47      *
  48      * <pre>
  49      * <em>protocol-version</em> <em>implementation-name</em>
  50      * </pre>
  51      *
  52      * <p>The <code><em>protocol-version</em></code> is a series of
  53      * two or more non-negative integers separated by periods
  54      * (<code>.</code>).  An implementation of the version described
  55      * by this documentation must use the string <code>1.0</code>
  56      * here.</p>
  57      *
  58      * <p>After the protocol version there must be a space, followed
  59      * by the implementation name.  The format of the implementation
  60      * name is unspecified.  It is recommended that it include an
  61      * implementation version number.  An implementation can use an
  62      * empty string as its implementation name, for example for
  63      * security reasons.</p>
  64      *
  65      * @return a string with the format described here.
  66      *
  67      * @exception RemoteException if there is a communication
  68      * exception during the remote method call.
  69      */
  70     public String getVersion() throws RemoteException;
  71 
  72     /**
  73      * <p>Makes a new connection through this RMI connector.  Each
  74      * remote client calls this method to obtain a new RMI object
  75      * representing its connection.</p>
  76      *
  77      * @param credentials this object specifies the user-defined credentials
  78      * to be passed in to the server in order to authenticate the user before
  79      * creating the <code>RMIConnection</code>.  Can be null.
  80      *
  81      * @return the newly-created connection object.
  82      *
  83      * @exception IOException if the new client object cannot be
  84      * created or exported, or if there is a communication exception
  85      * during the remote method call.
  86      *
  87      * @exception SecurityException if the given credentials do not
  88      * allow the server to authenticate the caller successfully.
  89      */
  90     public RMIConnection newClient(Object credentials) throws IOException;
  91 }