/*!
* 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 (c) 2002-2013 Pentaho Corporation.. All rights reserved.
*/
package org.pentaho.platform.util.versionchecker;
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.util.messages.Messages;
import org.pentaho.platform.util.xml.dom4j.XmlDom4JHelper;
import java.lang.reflect.Method;
import java.util.Iterator;
import java.util.List;
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.util.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;
}
}