/*
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* 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 Lesser General Public License for more details.
*
* Copyright 2007 - 2009 Pentaho Corporation. All rights reserved.
*
*
* @created Sep 17, 2007
* @author Will Gorman
*/
package org.pentaho.platform.plugin.services.versionchecker;
import java.lang.reflect.Method;
import java.util.Iterator;
import java.util.List;
import org.apache.commons.logging.Log;
import org.dom4j.Document;
import org.dom4j.Element;
import org.pentaho.platform.engine.services.solution.PentahoEntityResolver;
import org.pentaho.platform.plugin.services.messages.Messages;
import org.pentaho.platform.util.xml.dom4j.XmlDom4JHelper;
public class PentahoVersionCheckReflectHelper {
public static boolean isVersionCheckerAvailable() {
try {
Class.forName("org.pentaho.versionchecker.VersionChecker"); //$NON-NLS-1$
return true;
} catch (ClassNotFoundException e) {
// ignore
}
return false;
}
public static List performVersionCheck(final boolean ignoreExistingUpdates, final int versionRequestFlags) {
// check to see if jar is loaded before continuing
if (PentahoVersionCheckReflectHelper.isVersionCheckerAvailable()) {
try {
// use reflection so anyone can delete the version checker jar without pain
// PentahoVersionCheckHelper helper = new PentahoVersionCheckHelper();
Class helperClass = Class
.forName("org.pentaho.platform.plugin.services.versionchecker.PentahoVersionCheckHelper"); //$NON-NLS-1$
Object helper = helperClass.getConstructors()[0].newInstance(new Object[] {});
// helper.setIgnoreExistingUpdates(ignoreExistingUpdates);
Method setIgnoreExistingUpdatesMethod = helperClass.getDeclaredMethod(
"setIgnoreExistingUpdates", new Class[] { Boolean.TYPE }); //$NON-NLS-1$
setIgnoreExistingUpdatesMethod.invoke(helper, new Object[] { new Boolean(ignoreExistingUpdates) });
// helper.setVersionRequestFlags(versionRequestFlags);
Method setVersionRequestFlagsMethod = helperClass.getDeclaredMethod(
"setVersionRequestFlags", new Class[] { Integer.TYPE }); //$NON-NLS-1$
setVersionRequestFlagsMethod.invoke(helper, new Object[] { new Integer(versionRequestFlags) });
// helper.performUpdate();
Method performUpdateMethod = helperClass.getDeclaredMethod("performUpdate", new Class[] {}); //$NON-NLS-1$
performUpdateMethod.invoke(helper, new Object[] {});
// List results = helper.getResults();
Method getResultsMethod = helperClass.getDeclaredMethod("getResults", new Class[] {}); //$NON-NLS-1$
List results = (List) getResultsMethod.invoke(helper, new Object[] {});
return results;
} catch (Exception e) {
// ignore errors
}
}
return null;
}
public static String logVersionCheck(final List results, final Log logger) {
String output = null;
if ((results != null) && (results.size() > 0)) {
String result = results.get(0).toString();
try {
Document doc = XmlDom4JHelper.getDocFromString(result, new PentahoEntityResolver());
if (doc != null) {
List nodes = doc.selectNodes("//update"); //$NON-NLS-1$
Iterator nodeIter = nodes.iterator();
while (nodeIter.hasNext()) {
Element updateElement = (Element) nodeIter.next();
String title = updateElement.attributeValue("title"); //$NON-NLS-1$
String version = updateElement.attributeValue("version"); //$NON-NLS-1$
String type = updateElement.attributeValue("type"); //$NON-NLS-1$
String downloadurl = XmlDom4JHelper.getNodeText("downloadurl", updateElement); //$NON-NLS-1$
if (downloadurl != null) {
downloadurl = downloadurl.trim();
}
logger.info(Messages.getInstance().getString("VersionCheck.UPDATE_MESSAGE", title, version, type, downloadurl)); //$NON-NLS-1$
}
nodes = doc.selectNodes("//error"); //$NON-NLS-1$
nodeIter = nodes.iterator();
while (nodeIter.hasNext()) {
Element errorElement = (Element) nodeIter.next();
String message = errorElement.getText();
logger.info(Messages.getInstance().getString("VersionCheck.ERROR_MESSAGE", message)); //$NON-NLS-1$
}
}
output = result;
} catch (Exception e) {
output = "<vercheck><error><[!CDATA[" + Messages.getInstance().getString("VersionCheck.ERROR_MESSAGE", e.getMessage()) + "]]></error></vercheck>"; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}
} else {
output = "<vercheck><error><[!CDATA[" + Messages.getInstance().getString("VersionCheck.NO_RESULT_MESSAGE") + "]]></error></vercheck>"; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}
return output;
}
}