/*
* eXist Open Source Native XML Database
* Copyright (C) 2000-04, Wolfgang M. Meier (wolfgang@exist-db.org)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This library 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 Library 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Id$
*/
package org.exist.xmldb.concurrent.action;
import org.exist.xmldb.concurrent.XMLGenerator;
import org.xmldb.api.DatabaseManager;
import org.xmldb.api.base.Collection;
import org.xmldb.api.base.XMLDBException;
import org.xmldb.api.modules.XUpdateQueryService;
/**
* Removes the 10 last elements from the resource and inserts 10
* new elements at the top.
*
* @author wolf
*/
public class RemoveAppendAction extends Action {
private static final String REMOVE =
"<xu:modifications xmlns:xu=\"http://www.xmldb.org/xupdate\" version=\"1.0\">"
+ "<xu:remove select=\"//ELEMENT[last()]\">"
+ "</xu:remove>"
+ "</xu:modifications>";
protected XMLGenerator xmlGenerator;
public RemoveAppendAction(String collectionPath, String resourceName, String[] wordList) {
super(collectionPath, resourceName);
xmlGenerator = new XMLGenerator(1, 5, 1, wordList, false);
}
/* (non-Javadoc)
* @see org.exist.xmldb.test.concurrent.ConcurrentXUpdateTest.Action#execute()
*/
public boolean execute() throws Exception {
Collection col = DatabaseManager.getCollection(collectionPath, "admin", null);
XUpdateQueryService service = (XUpdateQueryService)
col.getService("XUpdateQueryService", "1.0");
append(service);
remove(service);
return false;
}
private void remove(XUpdateQueryService service) throws XMLDBException {
System.out.println(Thread.currentThread().getName() + ": removing elements ...");
for(int i = 0; i < 10; i++)
service.update(REMOVE);
}
private void append(XUpdateQueryService service) throws Exception {
final String updateOpen =
"<xu:modifications xmlns:xu=\"http://www.xmldb.org/xupdate\" version=\"1.0\">" +
"<xu:append select=\"/ROOT-ELEMENT\" child=\"1\">";
final String updateClose =
"</xu:append>" +
"</xu:modifications>";
System.out.println(Thread.currentThread().getName() + ": inserting elements ...");
for (int i = 0; i < 10; i++) {
String update = updateOpen + xmlGenerator.generateElement() + updateClose;
service.update(update);
}
}
}