| /* |
| * Copyright (c) 2000, 2010, Oracle and/or its affiliates. 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| package com.sun.corba.se.impl.encoding; |
| |
| import java.nio.ByteBuffer; |
| |
| import com.sun.corba.se.impl.orbutil.ORBConstants; |
| import com.sun.corba.se.impl.protocol.giopmsgheaders.Message; |
| import com.sun.corba.se.impl.protocol.giopmsgheaders.MessageBase; |
| import com.sun.corba.se.impl.protocol.giopmsgheaders.FragmentMessage; |
| import com.sun.corba.se.impl.protocol.giopmsgheaders.ReplyMessage; |
| import com.sun.corba.se.impl.encoding.BufferManagerWrite; |
| import com.sun.corba.se.impl.encoding.ByteBufferWithInfo; |
| import com.sun.corba.se.impl.encoding.CDROutputObject; |
| import com.sun.corba.se.spi.orb.ORB; |
| import com.sun.corba.se.pept.transport.Connection; |
| import com.sun.corba.se.pept.encoding.OutputObject; |
| import org.omg.CORBA.SystemException; |
| |
| /** |
| * Streaming buffer manager. |
| */ |
| public class BufferManagerWriteStream extends BufferManagerWrite |
| { |
| private int fragmentCount = 0; |
| |
| BufferManagerWriteStream( ORB orb ) |
| { |
| super(orb) ; |
| } |
| |
| public boolean sentFragment() { |
| return fragmentCount > 0; |
| } |
| |
| /** |
| * Returns the correct buffer size for this type of |
| * buffer manager as set in the ORB. |
| */ |
| public int getBufferSize() { |
| return orb.getORBData().getGIOPFragmentSize(); |
| } |
| |
| public void overflow (ByteBufferWithInfo bbwi) |
| { |
| // Set the fragment's moreFragments field to true |
| MessageBase.setFlag(bbwi.byteBuffer, Message.MORE_FRAGMENTS_BIT); |
| |
| try { |
| sendFragment(false); |
| } catch(SystemException se){ |
| orb.getPIHandler().invokeClientPIEndingPoint( |
| ReplyMessage.SYSTEM_EXCEPTION, se); |
| throw se; |
| } |
| |
| // Reuse the old buffer |
| |
| // REVISIT - need to account for case when needed > available |
| // even after fragmenting. This is the large array case, so |
| // the caller should retry when it runs out of space. |
| bbwi.position(0); |
| bbwi.buflen = bbwi.byteBuffer.limit(); |
| bbwi.fragmented = true; |
| |
| // Now we must marshal in the fragment header/GIOP header |
| |
| // REVISIT - we can optimize this by not creating the fragment message |
| // each time. |
| |
| FragmentMessage header = ((CDROutputObject)outputObject).getMessageHeader().createFragmentMessage(); |
| |
| header.write(((CDROutputObject)outputObject)); |
| } |
| |
| private void sendFragment(boolean isLastFragment) |
| { |
| Connection conn = ((OutputObject)outputObject).getMessageMediator().getConnection(); |
| |
| // REVISIT: need an ORB |
| //System.out.println("sendFragment: last?: " + isLastFragment); |
| conn.writeLock(); |
| |
| try { |
| // Send the fragment |
| conn.sendWithoutLock(((OutputObject)outputObject)); |
| |
| fragmentCount++; |
| |
| } finally { |
| |
| conn.writeUnlock(); |
| } |
| |
| } |
| |
| // Sends the last fragment |
| public void sendMessage () |
| { |
| sendFragment(true); |
| |
| sentFullMessage = true; |
| } |
| |
| /** |
| * Close the BufferManagerWrite and do any outstanding cleanup. |
| * |
| * No work to do for a BufferManagerWriteStream |
| */ |
| public void close(){}; |
| |
| } |