Mercurial > jdk8-mips64-public > corba / annotate
src/share/classes/com/sun/corba/se/impl/encoding/BufferManagerWriteStream.java@91006f157c46 (annotated)
src/share/classes/com/sun/corba/se/impl/encoding/BufferManagerWriteStream.java
Tue, 25 May 2010 15:52:11 -0700
- author
- ohair
- date
- Tue, 25 May 2010 15:52:11 -0700
- changeset 158
- 91006f157c46
- parent 1
- 55540e827aef
- child 231
- ff0f02a67881
- permissions
- -rw-r--r--
6943119: Rebrand source copyright notices
Reviewed-by: darcy
| duke@1 | 1 | /* |
| ohair@158 | 2 | * Copyright (c) 2000, 2003, Oracle and/or its affiliates. All rights reserved. |
| duke@1 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| duke@1 | 4 | * |
| duke@1 | 5 | * This code is free software; you can redistribute it and/or modify it |
| duke@1 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| ohair@158 | 7 | * published by the Free Software Foundation. Oracle designates this |
| duke@1 | 8 | * particular file as subject to the "Classpath" exception as provided |
| ohair@158 | 9 | * by Oracle in the LICENSE file that accompanied this code. |
| duke@1 | 10 | * |
| duke@1 | 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| duke@1 | 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| duke@1 | 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| duke@1 | 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| duke@1 | 15 | * accompanied this code). |
| duke@1 | 16 | * |
| duke@1 | 17 | * You should have received a copy of the GNU General Public License version |
| duke@1 | 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| duke@1 | 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| duke@1 | 20 | * |
| ohair@158 | 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| ohair@158 | 22 | * or visit www.oracle.com if you need additional information or have any |
| ohair@158 | 23 | * questions. |
| duke@1 | 24 | */ |
| duke@1 | 25 | package com.sun.corba.se.impl.encoding; |
| duke@1 | 26 | |
| duke@1 | 27 | import java.nio.ByteBuffer; |
| duke@1 | 28 | |
| duke@1 | 29 | import com.sun.corba.se.impl.orbutil.ORBConstants; |
| duke@1 | 30 | import com.sun.corba.se.impl.protocol.giopmsgheaders.Message; |
| duke@1 | 31 | import com.sun.corba.se.impl.protocol.giopmsgheaders.MessageBase; |
| duke@1 | 32 | import com.sun.corba.se.impl.protocol.giopmsgheaders.FragmentMessage; |
| duke@1 | 33 | import com.sun.corba.se.impl.encoding.BufferManagerWrite; |
| duke@1 | 34 | import com.sun.corba.se.impl.encoding.ByteBufferWithInfo; |
| duke@1 | 35 | import com.sun.corba.se.impl.encoding.CDROutputObject; |
| duke@1 | 36 | import com.sun.corba.se.spi.orb.ORB; |
| duke@1 | 37 | import com.sun.corba.se.pept.transport.Connection; |
| duke@1 | 38 | import com.sun.corba.se.pept.encoding.OutputObject; |
| duke@1 | 39 | |
| duke@1 | 40 | /** |
| duke@1 | 41 | * Streaming buffer manager. |
| duke@1 | 42 | */ |
| duke@1 | 43 | public class BufferManagerWriteStream extends BufferManagerWrite |
| duke@1 | 44 | { |
| duke@1 | 45 | private int fragmentCount = 0; |
| duke@1 | 46 | |
| duke@1 | 47 | BufferManagerWriteStream( ORB orb ) |
| duke@1 | 48 | { |
| duke@1 | 49 | super(orb) ; |
| duke@1 | 50 | } |
| duke@1 | 51 | |
| duke@1 | 52 | public boolean sentFragment() { |
| duke@1 | 53 | return fragmentCount > 0; |
| duke@1 | 54 | } |
| duke@1 | 55 | |
| duke@1 | 56 | /** |
| duke@1 | 57 | * Returns the correct buffer size for this type of |
| duke@1 | 58 | * buffer manager as set in the ORB. |
| duke@1 | 59 | */ |
| duke@1 | 60 | public int getBufferSize() { |
| duke@1 | 61 | return orb.getORBData().getGIOPFragmentSize(); |
| duke@1 | 62 | } |
| duke@1 | 63 | |
| duke@1 | 64 | public void overflow (ByteBufferWithInfo bbwi) |
| duke@1 | 65 | { |
| duke@1 | 66 | // Set the fragment's moreFragments field to true |
| duke@1 | 67 | MessageBase.setFlag(bbwi.byteBuffer, Message.MORE_FRAGMENTS_BIT); |
| duke@1 | 68 | |
| duke@1 | 69 | sendFragment(false); |
| duke@1 | 70 | |
| duke@1 | 71 | // Reuse the old buffer |
| duke@1 | 72 | |
| duke@1 | 73 | // REVISIT - need to account for case when needed > available |
| duke@1 | 74 | // even after fragmenting. This is the large array case, so |
| duke@1 | 75 | // the caller should retry when it runs out of space. |
| duke@1 | 76 | bbwi.position(0); |
| duke@1 | 77 | bbwi.buflen = bbwi.byteBuffer.limit(); |
| duke@1 | 78 | bbwi.fragmented = true; |
| duke@1 | 79 | |
| duke@1 | 80 | // Now we must marshal in the fragment header/GIOP header |
| duke@1 | 81 | |
| duke@1 | 82 | // REVISIT - we can optimize this by not creating the fragment message |
| duke@1 | 83 | // each time. |
| duke@1 | 84 | |
| duke@1 | 85 | FragmentMessage header = ((CDROutputObject)outputObject).getMessageHeader().createFragmentMessage(); |
| duke@1 | 86 | |
| duke@1 | 87 | header.write(((CDROutputObject)outputObject)); |
| duke@1 | 88 | } |
| duke@1 | 89 | |
| duke@1 | 90 | private void sendFragment(boolean isLastFragment) |
| duke@1 | 91 | { |
| duke@1 | 92 | Connection conn = ((OutputObject)outputObject).getMessageMediator().getConnection(); |
| duke@1 | 93 | |
| duke@1 | 94 | // REVISIT: need an ORB |
| duke@1 | 95 | //System.out.println("sendFragment: last?: " + isLastFragment); |
| duke@1 | 96 | conn.writeLock(); |
| duke@1 | 97 | |
| duke@1 | 98 | try { |
| duke@1 | 99 | // Send the fragment |
| duke@1 | 100 | conn.sendWithoutLock(((OutputObject)outputObject)); |
| duke@1 | 101 | |
| duke@1 | 102 | fragmentCount++; |
| duke@1 | 103 | |
| duke@1 | 104 | } finally { |
| duke@1 | 105 | |
| duke@1 | 106 | conn.writeUnlock(); |
| duke@1 | 107 | } |
| duke@1 | 108 | |
| duke@1 | 109 | } |
| duke@1 | 110 | |
| duke@1 | 111 | // Sends the last fragment |
| duke@1 | 112 | public void sendMessage () |
| duke@1 | 113 | { |
| duke@1 | 114 | sendFragment(true); |
| duke@1 | 115 | |
| duke@1 | 116 | sentFullMessage = true; |
| duke@1 | 117 | } |
| duke@1 | 118 | |
| duke@1 | 119 | /** |
| duke@1 | 120 | * Close the BufferManagerWrite and do any outstanding cleanup. |
| duke@1 | 121 | * |
| duke@1 | 122 | * No work to do for a BufferManagerWriteStream |
| duke@1 | 123 | */ |
| duke@1 | 124 | public void close(){}; |
| duke@1 | 125 | |
| duke@1 | 126 | } |
