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      1 /*
      2  * Copyright (c) 2008-2009, Motorola, Inc.
      3  *
      4  * All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions are met:
      8  *
      9  * - Redistributions of source code must retain the above copyright notice,
     10  * this list of conditions and the following disclaimer.
     11  *
     12  * - Redistributions in binary form must reproduce the above copyright notice,
     13  * this list of conditions and the following disclaimer in the documentation
     14  * and/or other materials provided with the distribution.
     15  *
     16  * - Neither the name of the Motorola, Inc. nor the names of its contributors
     17  * may be used to endorse or promote products derived from this software
     18  * without specific prior written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
     21  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     23  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
     24  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     30  * POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 package javax.obex;
     34 
     35 import java.io.IOException;
     36 
     37 /**
     38  * The <code>SessionNotifier</code> interface defines a connection notifier for
     39  * server-side OBEX connections. When a <code>SessionNotifier</code> is created
     40  * and calls <code>acceptAndOpen()</code>, it will begin listening for clients
     41  * to create a connection at the transport layer. When the transport layer
     42  * connection is received, the <code>acceptAndOpen()</code> method will return a
     43  * <code>javax.microedition.io.Connection</code> that is the connection to the
     44  * client. The <code>acceptAndOpen()</code> method also takes a
     45  * <code>ServerRequestHandler</code> argument that will process the requests
     46  * from the client that connects to the server.
     47  * @hide
     48  */
     49 public interface SessionNotifier {
     50 
     51     /**
     52      * Waits for a transport layer connection to be established and specifies
     53      * the handler to handle the requests from the client. No authenticator is
     54      * associated with this connection, therefore, it is implementation
     55      * dependent as to how an authentication challenge and authentication
     56      * response header will be received and processed.
     57      * <P>
     58      * <H4>Additional Note for OBEX over Bluetooth</H4> If this method is called
     59      * on a <code>SessionNotifier</code> object that does not have a
     60      * <code>ServiceRecord</code> in the SDDB, the <code>ServiceRecord</code>
     61      * for this object will be added to the SDDB. This method requests the BCC
     62      * to put the local device in connectable mode so that it will respond to
     63      * connection attempts by clients.
     64      * <P>
     65      * The following checks are done to verify that the service record provided
     66      * is valid. If any of these checks fail, then a
     67      * <code>ServiceRegistrationException</code> is thrown.
     68      * <UL>
     69      * <LI>ServiceClassIDList and ProtocolDescriptorList, the mandatory service
     70      * attributes for a <code>btgoep</code> service record, must be present in
     71      * the <code>ServiceRecord</code> associated with this notifier.
     72      * <LI>L2CAP, RFCOMM and OBEX must all be in the ProtocolDescriptorList
     73      * <LI>The <code>ServiceRecord</code> associated with this notifier must not
     74      * have changed the RFCOMM server channel number
     75      * </UL>
     76      * <P>
     77      * This method will not ensure that <code>ServiceRecord</code> associated
     78      * with this notifier is a completely valid service record. It is the
     79      * responsibility of the application to ensure that the service record
     80      * follows all of the applicable syntactic and semantic rules for service
     81      * record correctness.
     82      * @param handler the request handler that will respond to OBEX requests
     83      * @return the connection to the client
     84      * @throws IOException if an error occurs in the transport layer
     85      * @throws NullPointerException if <code>handler</code> is <code>null</code>
     86      */
     87     ObexSession acceptAndOpen(ServerRequestHandler handler) throws IOException;
     88 
     89     /**
     90      * Waits for a transport layer connection to be established and specifies
     91      * the handler to handle the requests from the client and the
     92      * <code>Authenticator</code> to use to respond to authentication challenge
     93      * and authentication response headers.
     94      * <P>
     95      * <H4>Additional Note for OBEX over Bluetooth</H4> If this method is called
     96      * on a <code>SessionNotifier</code> object that does not have a
     97      * <code>ServiceRecord</code> in the SDDB, the <code>ServiceRecord</code>
     98      * for this object will be added to the SDDB. This method requests the BCC
     99      * to put the local device in connectable mode so that it will respond to
    100      * connection attempts by clients.
    101      * <P>
    102      * The following checks are done to verify that the service record provided
    103      * is valid. If any of these checks fail, then a
    104      * <code>ServiceRegistrationException</code> is thrown.
    105      * <UL>
    106      * <LI>ServiceClassIDList and ProtocolDescriptorList, the mandatory service
    107      * attributes for a <code>btgoep</code> service record, must be present in
    108      * the <code>ServiceRecord</code> associated with this notifier.
    109      * <LI>L2CAP, RFCOMM and OBEX must all be in the ProtocolDescriptorList
    110      * <LI>The <code>ServiceRecord</code> associated with this notifier must not
    111      * have changed the RFCOMM server channel number
    112      * </UL>
    113      * <P>
    114      * This method will not ensure that <code>ServiceRecord</code> associated
    115      * with this notifier is a completely valid service record. It is the
    116      * responsibility of the application to ensure that the service record
    117      * follows all of the applicable syntactic and semantic rules for service
    118      * record correctness.
    119      * @param handler the request handler that will respond to OBEX requests
    120      * @param auth the <code>Authenticator</code> to use with this connection;
    121      *        if <code>null</code> then no <code>Authenticator</code> will be
    122      *        used
    123      * @return the connection to the client
    124      * @throws IOException if an error occurs in the transport layer
    125      * @throws NullPointerException if <code>handler</code> is <code>null</code>
    126      */
    127     ObexSession acceptAndOpen(ServerRequestHandler handler, Authenticator auth) throws IOException;
    128 }
    129