package edu.umd.cs.findbugs.tools;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.util.HashMap;
import java.util.Map;
import java.util.TreeMap;
import java.util.Map.Entry;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.apache.bcel.Constants;
import edu.umd.cs.findbugs.internalAnnotations.DottedClassName;
import edu.umd.cs.findbugs.util.Util;
/*
* FindBugs - Find Bugs in Java programs
* Copyright (C) 2006, 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
*/
/**
* Filter a property database, only passing through the annotations on public or
* protected methods
*/
public class FilterAndCombineBitfieldPropertyDatabase {
final static int FLAGS = Constants.ACC_PROTECTED | Constants.ACC_PUBLIC;
/**
* @param args
* @throws IOException
*/
public static void main(String[] args) throws IOException {
Map<String, Integer> properties = new TreeMap<String, Integer>();
Map<String, Integer> accessFlags = new TreeMap<String, Integer>();
if (args.length == 0)
process(System.in, properties, accessFlags);
else for(String f : args)
process(new FileInputStream(f), properties, accessFlags);
for(Entry<String,Integer> e : properties.entrySet()) {
String key = e.getKey();
System.out.println(key + "," + accessFlags.get(key) + "|" + e.getValue());
}
}
enum Status { NOT_FOUND, EXPOSED, UNEXPOSED };
static Map<String, Status> classStatus = new HashMap<String, Status>();
static Status getStatus(@DottedClassName String name) {
if (name.startsWith("com.sun") || name.startsWith("sun") || name.startsWith("netscape"))
return Status.UNEXPOSED;
Status result = classStatus.get(name);
if (result != null) return result;
try {
Class <?> c = Class.forName(name, false, ClassLoader.getSystemClassLoader());
int accessFlags = c.getModifiers();
if ((accessFlags & FLAGS) != 0)
result = Status.EXPOSED;
else {
result = Status.UNEXPOSED;
}
} catch (Exception e) {
result = Status.NOT_FOUND;
// System.out.println("# can't find " + name);
}
classStatus.put(name, result);
return result;
}
/**
* @param inSource
* @throws UnsupportedEncodingException
* @throws IOException
*/
private static void process(InputStream inSource, Map<String, Integer> properties, Map<String, Integer> accessFlags) throws UnsupportedEncodingException, IOException {
BufferedReader in = new BufferedReader(Util.getReader(inSource));
Pattern p = Pattern.compile("^(([^,]+),.+),([0-9]+)\\|([0-9]+)$");
try {
while (true) {
String s = in.readLine();
if (s == null)
break;
Matcher m = p.matcher(s);
if (m.find()) {
String key = m.group(1);
String className = m.group(2);
if (getStatus(className) == Status.UNEXPOSED)
continue;
int accFlags = Integer.parseInt(m.group(3));
int bits = Integer.parseInt(m.group(4));
if ((accFlags & FLAGS) != 0) {
accessFlags.put(key, accFlags);
if (properties.containsKey(key))
properties.put(key, bits | properties.get(key));
else
properties.put(key, bits );
}
}
}
} finally {
Util.closeSilently(in);
}
}
}