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author | PKI Team <PKI Team@c9f7a03b-bd48-0410-a16d-cbbf54688b0b> | 2008-03-18 22:36:57 +0000 |
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committer | PKI Team <PKI Team@c9f7a03b-bd48-0410-a16d-cbbf54688b0b> | 2008-03-18 22:36:57 +0000 |
commit | d0f2e4efbd3eb0f1d7f5a28e7f97c1fb4ec027bb (patch) | |
tree | 7e7473fae8af5ad7e6cda7eabbef787093fc59a7 /pki/base/common/src/com/netscape/cms/request | |
parent | 273f8d85df5c31293a908185622b378c8f3cf7e8 (diff) | |
download | pki-d0f2e4efbd3eb0f1d7f5a28e7f97c1fb4ec027bb.tar.gz pki-d0f2e4efbd3eb0f1d7f5a28e7f97c1fb4ec027bb.tar.xz pki-d0f2e4efbd3eb0f1d7f5a28e7f97c1fb4ec027bb.zip |
Initial open source version based upon proprietary Red Hat Certificate System (RHCS) 7.3.
git-svn-id: svn+ssh://svn.fedorahosted.org/svn/pki/trunk@2 c9f7a03b-bd48-0410-a16d-cbbf54688b0b
Diffstat (limited to 'pki/base/common/src/com/netscape/cms/request')
-rw-r--r-- | pki/base/common/src/com/netscape/cms/request/RequestScheduler.java | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/pki/base/common/src/com/netscape/cms/request/RequestScheduler.java b/pki/base/common/src/com/netscape/cms/request/RequestScheduler.java new file mode 100644 index 00000000..2375fdb0 --- /dev/null +++ b/pki/base/common/src/com/netscape/cms/request/RequestScheduler.java @@ -0,0 +1,88 @@ +// --- BEGIN COPYRIGHT BLOCK --- +// This program is free software; you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation; version 2 of the License. +// +// This program 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 for more details. +// +// You should have received a copy of the GNU General Public License along +// with this program; if not, write to the Free Software Foundation, Inc., +// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +// +// (C) 2007 Red Hat, Inc. +// All rights reserved. +// --- END COPYRIGHT BLOCK --- +package com.netscape.cms.request; + + +import java.io.IOException; +import java.io.NotSerializableException; +import java.io.ObjectStreamException; +import java.io.Serializable; +import java.io.ByteArrayOutputStream; +import java.io.ByteArrayInputStream; +import java.io.ObjectOutputStream; +import java.io.ObjectInputStream; +import java.math.BigInteger; + +import java.util.Date; +import java.util.Enumeration; +import java.util.Vector; +import java.util.Hashtable; + +import com.netscape.certsrv.base.EBaseException; + +import com.netscape.certsrv.request.IRequest; +import com.netscape.certsrv.request.IRequestScheduler; + + +/** + * This class represents a request scheduler that prioritizes + * the threads based on the request processing order. + * The request that enters the request queue first should + * be processed first. + * + * @version $Revision: 14561 $, $Date: 2007-05-01 10:28:56 -0700 (Tue, 01 May 2007) $ + */ +public class RequestScheduler implements IRequestScheduler { + private Vector mRequestThreads = new Vector(); + + /** + * Request entered the request queue processing. + * + * @param r request + */ + public synchronized void requestIn(IRequest r) { + Thread current = Thread.currentThread(); + + if (mRequestThreads.size() == 0) { + current.setPriority(Thread.MAX_PRIORITY); + } + mRequestThreads.addElement(current); + } + + /** + * Request exited the request queue processing. + * + * @param r request + */ + public synchronized void requestOut(IRequest r) { + Thread current = Thread.currentThread(); + Thread first = (Thread) mRequestThreads.elementAt(0); + + if (current.equals(first)) { + // reprioritize + try { + Thread second = (Thread) mRequestThreads.elementAt(1); + + second.setPriority(Thread.MAX_PRIORITY); + } catch (Exception e) { + // no second element; nothing to do + } + } + mRequestThreads.removeElement(current); + } +} |