net.sf.jasperreports.engine.util.CompiledClassesLoader Maven / Gradle / Ivy
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/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2023 Cloud Software Group, Inc. All rights reserved.
* http://www.jaspersoft.com
*
* Unless you have purchased a commercial license agreement from Jaspersoft,
* the following license terms apply:
*
* This program is part of JasperReports.
*
* JasperReports is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* JasperReports 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.
*
* You should have received a copy of the GNU Lesser General Public License
* along with JasperReports. If not, see .
*/
package net.sf.jasperreports.engine.util;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import net.sf.jasperreports.engine.JRRuntimeException;
import net.sf.jasperreports.engine.design.CompiledClasses;
/**
*
* @author Lucian Chirita ([email protected])
*/
public class CompiledClassesLoader extends JRClassLoader
{
private static final Log log = LogFactory.getLog(CompiledClassesLoader.class);
private CompiledClasses compiledClasses;
protected CompiledClassesLoader(ClassLoaderFilter classLoaderFilter,
CompiledClasses compiledClasses)
{
super(classLoaderFilter);
this.compiledClasses = compiledClasses;
}
protected CompiledClassesLoader(ClassLoader parent, ClassLoaderFilter classLoaderFilter,
CompiledClasses compiledClasses)
{
super(parent, classLoaderFilter);
this.compiledClasses = compiledClasses;
}
@Override
protected Class findClass(String name) throws ClassNotFoundException
{
byte[] classBytes = compiledClasses.getClassBytes(name);
if (classBytes == null)
{
return super.findClass(name);
}
if (log.isDebugEnabled())
{
log.debug("found compiled class " + name);
}
return loadClass(name, classBytes);
}
protected Class loadCompiledClass(String name)
{
byte[] classBytes = compiledClasses.getClassBytes(name);
if (classBytes == null)
{
throw new JRRuntimeException("Unkonwn class " + name);
}
if (log.isDebugEnabled())
{
log.debug("loading compiled class " + name);
}
return loadClass(name, classBytes);
}
}