/*!
* 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 generators;
import java.io.IOException;
import java.io.InputStream;
import java.util.Locale;
import org.apache.bcel.classfile.Attribute;
import org.apache.bcel.classfile.ClassParser;
import org.apache.bcel.classfile.Deprecated;
import org.apache.bcel.classfile.JavaClass;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.pentaho.reporting.engine.classic.core.ClassicEngineBoot;
import org.pentaho.reporting.engine.classic.core.metadata.ExpressionMetaData;
import org.pentaho.reporting.engine.classic.core.metadata.ExpressionRegistry;
import org.pentaho.reporting.libraries.base.util.ObjectUtilities;
public class ExpressionDeprecationValidator
{
private static final Log logger = LogFactory.getLog(ExpressionDeprecationValidator.class);
public static void main(final String[] args) throws IOException
{
ClassicEngineBoot.getInstance().start();
final ExpressionRegistry expressionRegistry = ExpressionRegistry.getInstance();
final ExpressionMetaData[] allExpressions = expressionRegistry.getAllExpressionMetaDatas();
for (int i = 0; i < allExpressions.length; i++)
{
final ExpressionMetaData expression = allExpressions[i];
if (expression == null)
{
logger.warn("Null Expression encountered");
continue;
}
if (isDeprecated(expression))
{
if (expression.isDeprecated() == false)
{
logger.warn("Expression code is deprecated, but metadata is not:" + expression.getExpressionType());
}
if ("Deprecated Function".equals(expression.getGrouping(Locale.US)) == false)
{
logger.warn("Expression metadata is not in deprecated group:" + expression.getExpressionType());
}
}
else
{
if (expression.isDeprecated() == true)
{
logger.warn("Expression metadata is deprecated, but code is not:" + expression.getExpressionType());
}
}
}
}
private static boolean isDeprecated(final ExpressionMetaData expression)
throws IOException
{
try
{
final Class type = expression.getExpressionType();
final String resourcePath = type.getName().replace('.', '/');
final InputStream classStream = ObjectUtilities.getResourceAsStream
(resourcePath + ".class", ExpressionDeprecationValidator.class);
try
{
final ClassParser parser = new ClassParser(classStream, resourcePath);
final JavaClass javaClass = parser.parse();
final Attribute[] attributes = javaClass.getAttributes();
for (int j = 0; j < attributes.length; j++)
{
if (attributes[j] instanceof Deprecated)
{
return true;
}
}
return false;
}
finally
{
classStream.close();
}
}
catch (Throwable e)
{
e.printStackTrace();
return false;
}
}
}