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Diffstat (limited to 'src/share/classes/com/sun/corba/se/impl/encoding/BufferManagerReadStream.java')
-rw-r--r--src/share/classes/com/sun/corba/se/impl/encoding/BufferManagerReadStream.java357
1 files changed, 0 insertions, 357 deletions
diff --git a/src/share/classes/com/sun/corba/se/impl/encoding/BufferManagerReadStream.java b/src/share/classes/com/sun/corba/se/impl/encoding/BufferManagerReadStream.java
deleted file mode 100644
index bc87a38..0000000
--- a/src/share/classes/com/sun/corba/se/impl/encoding/BufferManagerReadStream.java
+++ /dev/null
@@ -1,357 +0,0 @@
-/*
- * Copyright (c) 2000, 2009, 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.pept.transport.ByteBufferPool;
-import com.sun.corba.se.spi.logging.CORBALogDomains;
-import com.sun.corba.se.spi.orb.ORB;
-import com.sun.corba.se.impl.logging.ORBUtilSystemException;
-import com.sun.corba.se.impl.orbutil.ORBUtility;
-import com.sun.corba.se.impl.protocol.RequestCanceledException;
-import com.sun.corba.se.impl.protocol.giopmsgheaders.FragmentMessage;
-import com.sun.corba.se.impl.protocol.giopmsgheaders.Message;
-import java.util.*;
-
-public class BufferManagerReadStream
- implements BufferManagerRead, MarkAndResetHandler
-{
- private boolean receivedCancel = false;
- private int cancelReqId = 0;
-
- // We should convert endOfStream to a final static dummy end node
- private boolean endOfStream = true;
- private BufferQueue fragmentQueue = new BufferQueue();
- private long FRAGMENT_TIMEOUT = 60000;
-
- // REVISIT - This should go in BufferManagerRead. But, since
- // BufferManagerRead is an interface. BufferManagerRead
- // might ought to be an abstract class instead of an
- // interface.
- private ORB orb ;
- private ORBUtilSystemException wrapper ;
- private boolean debug = false;
-
- BufferManagerReadStream( ORB orb )
- {
- this.orb = orb ;
- this.wrapper = ORBUtilSystemException.get( orb,
- CORBALogDomains.RPC_ENCODING ) ;
- debug = orb.transportDebugFlag;
- }
-
- public void cancelProcessing(int requestId) {
- synchronized(fragmentQueue) {
- receivedCancel = true;
- cancelReqId = requestId;
- fragmentQueue.notify();
- }
- }
-
- public void processFragment(ByteBuffer byteBuffer, FragmentMessage msg)
- {
- ByteBufferWithInfo bbwi =
- new ByteBufferWithInfo(orb, byteBuffer, msg.getHeaderLength());
-
- synchronized (fragmentQueue) {
- if (debug)
- {
- // print address of ByteBuffer being queued
- int bbAddress = System.identityHashCode(byteBuffer);
- StringBuffer sb = new StringBuffer(80);
- sb.append("processFragment() - queueing ByteBuffer id (");
- sb.append(bbAddress).append(") to fragment queue.");
- String strMsg = sb.toString();
- dprint(strMsg);
- }
- fragmentQueue.enqueue(bbwi);
- endOfStream = !msg.moreFragmentsToFollow();
- fragmentQueue.notify();
- }
- }
-
- public ByteBufferWithInfo underflow (ByteBufferWithInfo bbwi)
- {
-
- ByteBufferWithInfo result = null;
-
- try {
- //System.out.println("ENTER underflow");
-
- synchronized (fragmentQueue) {
-
- if (receivedCancel) {
- throw new RequestCanceledException(cancelReqId);
- }
-
- while (fragmentQueue.size() == 0) {
-
- if (endOfStream) {
- throw wrapper.endOfStream() ;
- }
-
- boolean interrupted = false;
- try {
- fragmentQueue.wait(FRAGMENT_TIMEOUT);
- } catch (InterruptedException e) {
- interrupted = true;
- }
-
- if (!interrupted && fragmentQueue.size() == 0) {
- throw wrapper.bufferReadManagerTimeout();
- }
-
- if (receivedCancel) {
- throw new RequestCanceledException(cancelReqId);
- }
- }
-
- result = fragmentQueue.dequeue();
- result.fragmented = true;
-
- if (debug)
- {
- // print address of ByteBuffer being dequeued
- int bbAddr = System.identityHashCode(result.byteBuffer);
- StringBuffer sb1 = new StringBuffer(80);
- sb1.append("underflow() - dequeued ByteBuffer id (");
- sb1.append(bbAddr).append(") from fragment queue.");
- String msg1 = sb1.toString();
- dprint(msg1);
- }
-
- // VERY IMPORTANT
- // Release bbwi.byteBuffer to the ByteBufferPool only if
- // this BufferManagerStream is not marked for potential restore.
- if (markEngaged == false && bbwi != null && bbwi.byteBuffer != null)
- {
- ByteBufferPool byteBufferPool = getByteBufferPool();
-
- if (debug)
- {
- // print address of ByteBuffer being released
- int bbAddress = System.identityHashCode(bbwi.byteBuffer);
- StringBuffer sb = new StringBuffer(80);
- sb.append("underflow() - releasing ByteBuffer id (");
- sb.append(bbAddress).append(") to ByteBufferPool.");
- String msg = sb.toString();
- dprint(msg);
- }
-
- byteBufferPool.releaseByteBuffer(bbwi.byteBuffer);
- bbwi.byteBuffer = null;
- bbwi = null;
- }
- }
- return result;
- } finally {
- //System.out.println("EXIT underflow");
- }
- }
-
- public void init(Message msg) {
- if (msg != null)
- endOfStream = !msg.moreFragmentsToFollow();
- }
-
- // Release any queued ByteBufferWithInfo's byteBuffers to the
- // ByteBufferPoool
- public void close(ByteBufferWithInfo bbwi)
- {
- int inputBbAddress = 0;
-
- // release ByteBuffers on fragmentQueue
- if (fragmentQueue != null)
- {
- synchronized (fragmentQueue)
- {
- // IMPORTANT: The fragment queue may have one ByteBuffer
- // on it that's also on the CDRInputStream if
- // this method is called when the stream is 'marked'.
- // Thus, we'll compare the ByteBuffer passed
- // in (from a CDRInputStream) with all ByteBuffers
- // on the stack. If one is found to equal, it will
- // not be released to the ByteBufferPool.
- if (bbwi != null)
- {
- inputBbAddress = System.identityHashCode(bbwi.byteBuffer);
- }
-
- ByteBufferWithInfo abbwi = null;
- ByteBufferPool byteBufferPool = getByteBufferPool();
- while (fragmentQueue.size() != 0)
- {
- abbwi = fragmentQueue.dequeue();
- if (abbwi != null && abbwi.byteBuffer != null)
- {
- int bbAddress = System.identityHashCode(abbwi.byteBuffer);
- if (inputBbAddress != bbAddress)
- {
- if (debug)
- {
- // print address of ByteBuffer released
- StringBuffer sb = new StringBuffer(80);
- sb.append("close() - fragmentQueue is ")
- .append("releasing ByteBuffer id (")
- .append(bbAddress).append(") to ")
- .append("ByteBufferPool.");
- String msg = sb.toString();
- dprint(msg);
- }
- }
- byteBufferPool.releaseByteBuffer(abbwi.byteBuffer);
- }
- }
- }
- fragmentQueue = null;
- }
-
- // release ByteBuffers on fragmentStack
- if (fragmentStack != null && fragmentStack.size() != 0)
- {
- // IMPORTANT: The fragment stack may have one ByteBuffer
- // on it that's also on the CDRInputStream if
- // this method is called when the stream is 'marked'.
- // Thus, we'll compare the ByteBuffer passed
- // in (from a CDRInputStream) with all ByteBuffers
- // on the stack. If one is found to equal, it will
- // not be released to the ByteBufferPool.
- if (bbwi != null)
- {
- inputBbAddress = System.identityHashCode(bbwi.byteBuffer);
- }
-
- ByteBufferWithInfo abbwi = null;
- ByteBufferPool byteBufferPool = getByteBufferPool();
- ListIterator itr = fragmentStack.listIterator();
- while (itr.hasNext())
- {
- abbwi = (ByteBufferWithInfo)itr.next();
-
- if (abbwi != null && abbwi.byteBuffer != null)
- {
- int bbAddress = System.identityHashCode(abbwi.byteBuffer);
- if (inputBbAddress != bbAddress)
- {
- if (debug)
- {
- // print address of ByteBuffer being released
- StringBuffer sb = new StringBuffer(80);
- sb.append("close() - fragmentStack - releasing ")
- .append("ByteBuffer id (" + bbAddress + ") to ")
- .append("ByteBufferPool.");
- String msg = sb.toString();
- dprint(msg);
- }
- byteBufferPool.releaseByteBuffer(abbwi.byteBuffer);
- }
- }
- }
- fragmentStack = null;
- }
-
- }
-
- protected ByteBufferPool getByteBufferPool()
- {
- return orb.getByteBufferPool();
- }
-
- private void dprint(String msg)
- {
- ORBUtility.dprint("BufferManagerReadStream", msg);
- }
-
- // Mark and reset handler ----------------------------------------
-
- private boolean markEngaged = false;
-
- // List of fragment ByteBufferWithInfos received since
- // the mark was engaged.
- private LinkedList fragmentStack = null;
- private RestorableInputStream inputStream = null;
-
- // Original state of the stream
- private Object streamMemento = null;
-
- public void mark(RestorableInputStream inputStream)
- {
- this.inputStream = inputStream;
- markEngaged = true;
-
- // Get the magic Object that the stream will use to
- // reconstruct it's state when reset is called
- streamMemento = inputStream.createStreamMemento();
-
- if (fragmentStack != null) {
- fragmentStack.clear();
- }
- }
-
- // Collects fragments received since the mark was engaged.
- public void fragmentationOccured(ByteBufferWithInfo newFragment)
- {
- if (!markEngaged)
- return;
-
- if (fragmentStack == null)
- fragmentStack = new LinkedList();
-
- fragmentStack.addFirst(new ByteBufferWithInfo(newFragment));
- }
-
- public void reset()
- {
- if (!markEngaged) {
- // REVISIT - call to reset without call to mark
- return;
- }
-
- markEngaged = false;
-
- // If we actually did peek across fragments, we need
- // to push those fragments onto the front of the
- // buffer queue.
- if (fragmentStack != null && fragmentStack.size() != 0) {
- ListIterator iter = fragmentStack.listIterator();
-
- synchronized(fragmentQueue) {
- while (iter.hasNext()) {
- fragmentQueue.push((ByteBufferWithInfo)iter.next());
- }
- }
-
- fragmentStack.clear();
- }
-
- // Give the stream the magic Object to restore
- // it's state.
- inputStream.restoreInternalState(streamMemento);
- }
-
- public MarkAndResetHandler getMarkAndResetHandler() {
- return this;
- }
-}
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