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author | mharmsen <mharmsen@c9f7a03b-bd48-0410-a16d-cbbf54688b0b> | 2011-10-04 01:17:41 +0000 |
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committer | mharmsen <mharmsen@c9f7a03b-bd48-0410-a16d-cbbf54688b0b> | 2011-10-04 01:17:41 +0000 |
commit | a4682ceae6774956461edd03b2485bbacea445f4 (patch) | |
tree | 94c475a125441da63101738220ce3972cf37db61 /pki/base/common/src/com/netscape/cms/request/RequestScheduler.java | |
parent | 0c775428675d2cb1be9551f84e6b741ca813f77e (diff) | |
download | pki-a4682ceae6774956461edd03b2485bbacea445f4.tar.gz pki-a4682ceae6774956461edd03b2485bbacea445f4.tar.xz pki-a4682ceae6774956461edd03b2485bbacea445f4.zip |
Bugzilla Bug #688225 - (dogtagIPAv2.1) TRACKER: of the Dogtag fixes for freeIPA 2.1IPA_v2_RHEL_6_2_20111003
git-svn-id: svn+ssh://svn.fedorahosted.org/svn/pki/tags/IPA_v2_RHEL_6_2_20111003@2252 c9f7a03b-bd48-0410-a16d-cbbf54688b0b
Diffstat (limited to 'pki/base/common/src/com/netscape/cms/request/RequestScheduler.java')
-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 000000000..36bb5cd2a --- /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 $Revision$, $Date$ + */ +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); + } +} |