/*
* FindBugs - Find Bugs in Java programs
* Copyright (C) 2005, University of Maryland
*
* This library 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 2.1 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package edu.umd.cs.findbugs.model;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import org.apache.bcel.Repository;
import org.apache.bcel.classfile.ClassParser;
import org.apache.bcel.classfile.JavaClass;
import edu.umd.cs.findbugs.BugCollection;
import edu.umd.cs.findbugs.SortedBugCollection;
/**
* Repopulate a BugCollection with class features from the classes in a
* specified jar file.
*
* @author David Hovemeyer
*/
public class RegenerateClassFeatures {
private final BugCollection bugCollection;
private final String jarFile;
public RegenerateClassFeatures(BugCollection bugCollection, String jarFile) {
this.bugCollection = bugCollection;
this.jarFile = jarFile;
}
public RegenerateClassFeatures execute() throws IOException {
bugCollection.clearClassFeatures();
ArrayList<JavaClass> classList = new ArrayList<JavaClass>();
try (ZipFile zipFile = new ZipFile(jarFile)){
// Add all classes to repository (for hierarchy queries)
Enumeration<? extends ZipEntry> entries = zipFile.entries();
while (entries.hasMoreElements()) {
ZipEntry entry = entries.nextElement();
if (!entry.getName().endsWith(".class")) {
continue;
}
ClassParser parser = new ClassParser(zipFile.getInputStream(entry), entry.getName());
JavaClass javaClass = parser.parse();
Repository.addClass(javaClass);
classList.add(javaClass);
}
}
for (JavaClass javaClass : classList) {
ClassFeatureSet classFeatureSet = new ClassFeatureSet().initialize(javaClass);
bugCollection.setClassFeatureSet(classFeatureSet);
}
return this;
}
/**
* @return Returns the bugCollection.
*/
public BugCollection getBugCollection() {
return bugCollection;
}
public static void main(String[] args) throws Exception {
if (args.length != 2) {
System.err.println("Usage: " + RegenerateClassFeatures.class.getName() + " <bug collection> <jar file>");
System.exit(1);
}
SortedBugCollection bugCollection = new SortedBugCollection();
bugCollection.readXML(args[0]);
new RegenerateClassFeatures(bugCollection, args[1]).execute();
bugCollection.writeXML(System.out);
}
}