1 /*

     2  * Copyright (c) 1996, 2012, 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 sun.security.ssl;

    27 

    28 import java.io.OutputStream;

    29 import java.io.IOException;

    30 import java.nio.ByteBuffer;

    31 

    32 /*

    33  * OutputStream for application data as returned by SSLSocket.getOutputStream().

    34  *

    35  * @author  David Brownell

    36  */

    37 class AppOutputStream extends OutputStream {

    38 

    39     private SSLSocketImpl socket;

    40 

    41     // One element array used to implement the write(byte) method

    42     private final byte[] oneByte = new byte[1];

    43 

    44     AppOutputStream(SSLSocketImpl conn) {

    45         this.socket = conn;

    46     }

    47 

    48     /**

    49      * Write the data out, NOW.

    50      */

    51     @Override

    52     public synchronized void write(byte[] b, int off, int len)

    53             throws IOException {

    54         if (b == null) {

    55             throw new NullPointerException();

    56         } else if (off < 0 || len < 0 || len > b.length - off) {

    57             throw new IndexOutOfBoundsException();

    58         } else if (len == 0) {

    59             return;

    60         }

    61 

    62         // check if the Socket is invalid (error or closed)

    63         socket.checkWrite();

    64 

    65         // Delegate the writing to the underlying socket.

    66         try {

    67             socket.writeRecord(b, off, len);

    68             socket.checkWrite();

    69         } catch (Exception e) {

    70             // shutdown and rethrow (wrapped) exception as appropriate

    71             socket.handleException(e);

    72         }

    73     }

    74 

    75     /**

    76      * Write one byte now.

    77      */

    78     @Override

    79     public synchronized void write(int i) throws IOException {

    80         oneByte[0] = (byte)i;

    81         write(oneByte, 0, 1);

    82     }

    83 

    84     /*

    85      * Socket close is already synchronized, no need to block here.

    86      */

    87     @Override

    88     public void close() throws IOException {

    89         socket.close();

    90     }

    91 

    92     // inherit no-op flush()

    93 }