/*

  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

  *

  * Copyright 2010-2011 Sun Microsystems, Inc. All rights reserved.

  *

  * The contents of this file are subject to the terms of either the GNU

  * General Public License Version 2 only ("GPL") or the Common

  * Development and Distribution License("CDDL") (collectively, the

  * "License"). You may not use this file except in compliance with the

  * License. You can obtain a copy of the License at

  * http://www.netbeans.org/cddl-gplv2.html

  * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the

  * specific language governing permissions and limitations under the

  * License.  When distributing the software, include this License Header

  * Notice in each file and include the License file at

  * nbbuild/licenses/CDDL-GPL-2-CP.  Sun designates this

  * particular file as subject to the "Classpath" exception as provided

  * by Sun in the GPL Version 2 section of the License file that

  * accompanied this code. If applicable, add the following below the

  * License Header, with the fields enclosed by brackets [] replaced by

  * your own identifying information:

  * "Portions Copyrighted [year] [name of copyright owner]"

  *

  * If you wish your version of this file to be governed by only the CDDL

  * or only the GPL Version 2, indicate your decision by adding

  * "[Contributor] elects to include this software in this distribution

  * under the [CDDL or GPL Version 2] license." If you do not indicate a

  * single choice of license, a recipient has the option to distribute

  * your version of this file under either the CDDL, the GPL Version 2 or

  * to extend the choice of license to its licensees as provided above.

  * However, if you add GPL Version 2 code and therefore, elected the GPL

  * Version 2 license, then the option applies only if the new code is

  * made subject to such option by the copyright holder.

  *

  * Contributor(s):

  *

  * Portions Copyrighted 2010-2011 Sun Microsystems, Inc.

  */

 package org.netbeans.modules.jackpot30.cmdline;

 import java.awt.BorderLayout;

 import java.awt.event.ActionEvent;

 import java.awt.event.ActionListener;

 import java.io.BufferedWriter;

 import java.io.File;

 import java.io.FileOutputStream;

 import java.io.IOException;

 import java.io.OutputStreamWriter;

 import java.io.PrintStream;

 import java.io.Writer;

 import java.lang.reflect.InvocationTargetException;

 import java.net.URL;

 import java.util.ArrayList;

 import java.util.Arrays;

 import java.util.Collection;

 import java.util.HashMap;

 import java.util.Iterator;

 import java.util.LinkedList;

 import java.util.List;

 import java.util.Map;

 import java.util.Map.Entry;

 import java.util.Set;

 import java.util.TreeSet;

 import java.util.concurrent.atomic.AtomicBoolean;

 import java.util.logging.Level;

 import java.util.logging.Logger;

 import java.util.prefs.BackingStoreException;

 import java.util.prefs.Preferences;

 import java.util.regex.Pattern;

 import javax.swing.JCheckBox;

 import javax.swing.JDialog;

 import javax.swing.JOptionPane;

 import javax.swing.JPanel;

 import javax.swing.SwingUtilities;

 import javax.swing.event.ChangeListener;

 import joptsimple.ArgumentAcceptingOptionSpec;

 import joptsimple.OptionException;

 import joptsimple.OptionParser;

 import joptsimple.OptionSet;

 import org.netbeans.api.java.classpath.ClassPath;

 import org.netbeans.api.java.classpath.GlobalPathRegistry;

 import org.netbeans.api.java.source.CompilationController;

 import org.netbeans.api.java.source.ModificationResult;

 import org.netbeans.core.startup.MainLookup;

 import org.netbeans.modules.jackpot30.ui.settings.XMLHintPreferences;

 import org.netbeans.modules.java.hints.jackpot.spi.PatternConvertor;

 import org.netbeans.modules.java.hints.providers.spi.HintDescription;

 import org.netbeans.modules.java.hints.providers.spi.HintMetadata;

 import org.netbeans.modules.java.hints.spiimpl.MessageImpl;

 import org.netbeans.modules.java.hints.spiimpl.RulesManager;

 import org.netbeans.modules.java.hints.spiimpl.batch.BatchSearch;

 import org.netbeans.modules.java.hints.spiimpl.batch.BatchSearch.BatchResult;

 import org.netbeans.modules.java.hints.spiimpl.batch.BatchSearch.Folder;

 import org.netbeans.modules.java.hints.spiimpl.batch.BatchSearch.Resource;

 import org.netbeans.modules.java.hints.spiimpl.batch.BatchSearch.VerifiedSpansCallBack;

 import org.netbeans.modules.java.hints.spiimpl.batch.BatchUtilities;

 import org.netbeans.modules.java.hints.spiimpl.batch.ProgressHandleWrapper;

 import org.netbeans.modules.java.hints.spiimpl.batch.ProgressHandleWrapper.ProgressHandleAbstraction;

 import org.netbeans.modules.java.hints.spiimpl.batch.Scopes;

 import org.netbeans.modules.java.hints.spiimpl.options.HintsPanel;

 import org.netbeans.modules.java.hints.spiimpl.options.HintsSettings;

 import org.netbeans.modules.java.hints.spiimpl.refactoring.Utilities.ClassPathBasedHintWrapper;

 import org.netbeans.modules.java.source.parsing.JavaPathRecognizer;

 import org.netbeans.modules.parsing.impl.indexing.CacheFolder;

 import org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater;

 import org.netbeans.spi.editor.hints.ErrorDescription;

 import org.netbeans.spi.java.classpath.ClassPathProvider;

 import org.netbeans.spi.java.classpath.support.ClassPathSupport;

 import org.netbeans.spi.java.hints.Hint.Kind;

 import org.netbeans.spi.java.queries.SourceLevelQueryImplementation2;

 import org.openide.filesystems.FileObject;

 import org.openide.filesystems.FileStateInvalidException;

 import org.openide.filesystems.FileUtil;

 import org.openide.util.Exceptions;

 import org.openide.util.Lookup;

 import org.openide.util.NbPreferences;

 import org.openide.util.RequestProcessor;

 import org.openide.util.lookup.Lookups;

 import org.openide.util.lookup.ProxyLookup;

 import org.openide.util.lookup.ServiceProvider;

 /**

  *

  * @author lahvac

  */

 public class Main {

     private static final String OPTION_APPLY = "apply";

     private static final String OPTION_NO_APPLY = "no-apply";

     private static final String SOURCE_LEVEL_DEFAULT = "1.7";

     private static final String ACCEPTABLE_SOURCE_LEVEL_PATTERN = "(1\\.)?[2-9][0-9]*";

     public static void main(String... args) throws IOException, ClassNotFoundException {

         System.exit(compile(args));

     }

     public static int compile(String... args) throws IOException, ClassNotFoundException {

         System.setProperty("netbeans.user", "/tmp/tmp-foo");

         OptionParser parser = new OptionParser();

 //        ArgumentAcceptingOptionSpec<File> projects = parser.accepts("project", "project(s) to refactor").withRequiredArg().withValuesSeparatedBy(File.pathSeparatorChar).ofType(File.class);

         ArgumentAcceptingOptionSpec<File> classpath = parser.accepts("classpath", "classpath").withRequiredArg().withValuesSeparatedBy(File.pathSeparatorChar).ofType(File.class);

         ArgumentAcceptingOptionSpec<File> bootclasspath = parser.accepts("bootclasspath", "bootclasspath").withRequiredArg().withValuesSeparatedBy(File.pathSeparatorChar).ofType(File.class);

         ArgumentAcceptingOptionSpec<File> sourcepath = parser.accepts("sourcepath", "sourcepath").withRequiredArg().withValuesSeparatedBy(File.pathSeparatorChar).ofType(File.class);

         ArgumentAcceptingOptionSpec<File> cache = parser.accepts("cache", "a cache directory to store working data").withRequiredArg().ofType(File.class);

         ArgumentAcceptingOptionSpec<File> out = parser.accepts("out", "output diff").withRequiredArg().ofType(File.class);

         ArgumentAcceptingOptionSpec<File> configFile = parser.accepts("config-file", "configuration file").withRequiredArg().ofType(File.class);

         ArgumentAcceptingOptionSpec<String> hint = parser.accepts("hint", "hint name").withRequiredArg().ofType(String.class);

         ArgumentAcceptingOptionSpec<String> config = parser.accepts("config", "configurations").withRequiredArg().ofType(String.class);

         ArgumentAcceptingOptionSpec<String> source = parser.accepts("source", "source level").withRequiredArg().ofType(String.class).defaultsTo(SOURCE_LEVEL_DEFAULT);

         ArgumentAcceptingOptionSpec<File> hintFile = parser.accepts("hint-file", "file with rules that should be performed").withRequiredArg().ofType(File.class);

         parser.accepts("list", "list all known hints");

         parser.accepts("progress", "show progress");

         parser.accepts("debug", "enable debugging loggers");

         parser.accepts("help", "prints this help");

         parser.accepts(OPTION_NO_APPLY, "do not apply changes - only print locations were the hint would be applied");

         parser.accepts(OPTION_APPLY, "apply changes");

         parser.accepts("show-gui", "show configuration dialog");

         OptionSet parsed;

         try {

             parsed = parser.parse(args);

         } catch (OptionException ex) {

             System.err.println(ex.getLocalizedMessage());

             parser.printHelpOn(System.out);

             return 1;

         }

         if (!parsed.has("debug")) {

             prepareLoggers();

         }

         if (parsed.has("help")) {

             parser.printHelpOn(System.out);

             return 0;

         }

         List<FileObject> roots = new ArrayList<FileObject>();

         List<Folder> rootFolders = new ArrayList<Folder>();

         for (String sr : parsed.nonOptionArguments()) {

             File r = new File(sr);

             FileObject root = FileUtil.toFileObject(r);

             if (root != null) {

                 roots.add(root);

                 rootFolders.add(new Folder(root));

             }

         }

         ClassPath bootCP = createClassPath(parsed.has(bootclasspath) ? parsed.valuesOf(bootclasspath) : null, createDefaultBootClassPath());

         ClassPath compileCP = createClassPath(parsed.has(classpath) ? parsed.valuesOf(classpath) : null, ClassPath.EMPTY);

         final ClassPath sourceCP = createClassPath(parsed.has(sourcepath) ? parsed.valuesOf(sourcepath) : null, ClassPathSupport.createClassPath(roots.toArray(new FileObject[0])));

         final ClassPath binaryCP = ClassPathSupport.createProxyClassPath(bootCP, compileCP);

         if (parsed.has("show-gui")) {

             if (parsed.has(configFile)) {

                 final File settingsFile = parsed.valueOf(configFile);

                 try {

                     SwingUtilities.invokeAndWait(new Runnable() {

                         @Override public void run() {

                             try {

                                 showGUICustomizer(settingsFile, binaryCP, sourceCP);

                             } catch (IOException ex) {

                                 Exceptions.printStackTrace(ex);

                             } catch (BackingStoreException ex) {

                                 Exceptions.printStackTrace(ex);

                             }

                         }

                     });

                 } catch (InterruptedException ex) {

                     Exceptions.printStackTrace(ex);

                 } catch (InvocationTargetException ex) {

                     Exceptions.printStackTrace(ex);

                 }

                 return 0;

             } else {

                 System.err.println("show-gui requires config-file");

                 return 1;

             }

         }

         File cacheDir = parsed.valueOf(cache);

         boolean deleteCacheDir = false;

         try {

             if (cacheDir == null) {

                 cacheDir = File.createTempFile("jackpot", "cache");

                 cacheDir.delete();

                 if (!(deleteCacheDir = cacheDir.mkdirs())) {

                     System.err.println("cannot create temporary cache");

                     return 1;

                 }

             }

             if (cacheDir.isFile()) {

                 System.err.println("cache directory exists and is a file");

                 return 1;

             }

             String[] cacheDirContent = cacheDir.list();

             if (cacheDirContent != null && cacheDirContent.length > 0 && !new File(cacheDir, "segments").exists()) {

                 System.err.println("cache directory is not empty, but was not created by this tool");

                 return 1;

             }

             cacheDir.mkdirs();

             CacheFolder.setCacheFolder(FileUtil.toFileObject(FileUtil.normalizeFile(cacheDir)));

             org.netbeans.api.project.ui.OpenProjects.getDefault().getOpenProjects();

             RepositoryUpdater.getDefault().start(false);

             if (roots.isEmpty() && !parsed.has("list")) {

                 System.err.println("no source roots to work on");

                 return 1;

             }

             Iterable<? extends HintDescription> hints;

             if (parsed.has("list")) {

                 printHints(sourceCP, binaryCP);

                 return 0;

             }

             Preferences settingsFromConfigFile;

             Preferences hintSettingsPreferences;

             HintsSettings hintSettings;

             boolean apply;

             if (parsed.has(configFile)) {

                 settingsFromConfigFile = XMLHintPreferences.from(parsed.valueOf(configFile));

                 hintSettings = HintsSettings.createPreferencesBasedHintsSettings(hintSettingsPreferences = settingsFromConfigFile.node("settings"), false, null);

                 apply = settingsFromConfigFile.getBoolean("apply", false);

             } else {

                 settingsFromConfigFile = null;

                 hintSettings = HintsSettings.createPreferencesBasedHintsSettings(hintSettingsPreferences = NbPreferences.root().node("tempSettings"), false, null);

                 apply = false;

             }

             if (parsed.has(hint)) {

                 if (settingsFromConfigFile != null) {

                     System.err.println("cannot specify --hint and --config-file together");

                     return 1;

                 }

                 hints = findHints(sourceCP, binaryCP, parsed.valueOf(hint), hintSettings);

             } else if (parsed.has(hintFile)) {

                 if (settingsFromConfigFile != null) {

                     System.err.println("cannot specify --hint-file and --config-file together");

                     return 1;

                 }

                 FileObject hintFileFO = FileUtil.toFileObject(parsed.valueOf(hintFile));

                 assert hintFileFO != null;

                 hints = PatternConvertor.create(hintFileFO.asText());

                 for (HintDescription hd : hints) {

                     hintSettings.setEnabled(hd.getMetadata(), true);

                 }

             } else {

                 hints = readHints(sourceCP, binaryCP, hintSettings, hintSettingsPreferences, settingsFromConfigFile != null ? settingsFromConfigFile.getBoolean("runDeclarative", true) : true);

             }

             if (parsed.has(config) && !parsed.has(hint)) {

                 System.err.println("--config cannot specified when no hint is specified");

                 return 1;

             }

             if (parsed.has(config)) {

                 Iterator<? extends HintDescription> hit = hints.iterator();

                 HintDescription hd = hit.next();

                 if (hit.hasNext()) {

                     System.err.println("--config cannot specified when more than one hint is specified");

                     return 1;

                 }

                 Preferences prefs = hintSettings.getHintPreferences(hd.getMetadata());

                 boolean stop = false;

                 for (String c : parsed.valuesOf(config)) {

                     int assign = c.indexOf('=');

                     if (assign == (-1)) {

                         System.err.println("configuration option is missing '=' (" + c + ")");

                         stop = true;

                         continue;

                     }

                     prefs.put(c.substring(0, assign), c.substring(assign + 1));

                 }

                 if (stop) {

                     return 1;

                 }

             }

             String sourceLevel = parsed.valueOf(source);

             if (!Pattern.compile(ACCEPTABLE_SOURCE_LEVEL_PATTERN).matcher(sourceLevel).matches()) {

                 System.err.println("unrecognized source level specification: " + sourceLevel);

                 return 1;

             }

             if (parsed.has(OPTION_NO_APPLY)) {

                 apply = false;

             } else if (parsed.has(OPTION_APPLY)) {

                 apply = true;

             }

             if (apply && !hints.iterator().hasNext()) {

                 System.err.println("no hints specified");

                 return 1;

             }

             Object[] register2Lookup = new Object[] {

                 new ClassPathProviderImpl(bootCP, compileCP, sourceCP),

                 new JavaPathRecognizer(),

                 new SourceLevelQueryImpl(sourceCP, sourceLevel)

             };

             try {

                 for (Object toRegister : register2Lookup) {

                     MainLookup.register(toRegister);

                 }

                 ProgressHandleWrapper progress = parsed.has("progress") ? new ProgressHandleWrapper(new ConsoleProgressHandleAbstraction(), 1) : new ProgressHandleWrapper(1);

                 if (apply) {

                     apply(hints, rootFolders.toArray(new Folder[0]), progress, hintSettings, parsed.valueOf(out));

                 } else {

                     findOccurrences(hints, rootFolders.toArray(new Folder[0]), progress, hintSettings, parsed.valueOf(out));

                 }

             } catch (Throwable e) {

                 e.printStackTrace();

             } finally {

                 for (Object toUnRegister : register2Lookup) {

                     MainLookup.unregister(toUnRegister);

                 }

             }

         } finally {

             if (deleteCacheDir) {

                 FileObject cacheDirFO = FileUtil.toFileObject(cacheDir);

                 if (cacheDirFO != null) {

                     //TODO: would be better to do j.i.File.delete():

                     cacheDirFO.delete();

                 }

             }

         }

         return 0;

     }

     private static Map<HintMetadata, Collection<? extends HintDescription>> listHints(ClassPath sourceFrom, ClassPath binaryFrom) {

         Map<HintMetadata, Collection<? extends HintDescription>> result = new HashMap<HintMetadata, Collection<? extends HintDescription>>();

         for (Entry<HintMetadata, ? extends Collection<? extends HintDescription>> entry: RulesManager.getInstance().readHints(null, Arrays.asList(sourceFrom, binaryFrom), null).entrySet()) {

             result.put(entry.getKey(), entry.getValue());

         }

         return result;

     }

     private static Iterable<? extends HintDescription> findHints(ClassPath sourceFrom, ClassPath binaryFrom, String name, HintsSettings toEnableIn) {

         List<HintDescription> descs = new LinkedList<HintDescription>();

         for (Entry<HintMetadata, Collection<? extends HintDescription>> e : listHints(sourceFrom, binaryFrom).entrySet()) {

             if (e.getKey().displayName.equals(name)) {

                 descs.addAll(e.getValue());

                 toEnableIn.setEnabled(e.getKey(), true);

             }

         }

         return descs;

     }

     private static Iterable<? extends HintDescription> allHints(ClassPath sourceFrom, ClassPath binaryFrom, HintsSettings toEnableIn) {

         List<HintDescription> descs = new LinkedList<HintDescription>();

         for (Entry<HintMetadata, Collection<? extends HintDescription>> e : listHints(sourceFrom, binaryFrom).entrySet()) {

             if (e.getKey().kind != Kind.INSPECTION) continue;

             if (!e.getKey().enabled) continue;

             descs.addAll(e.getValue());

             toEnableIn.setEnabled(e.getKey(), true);

         }

         return descs;

     }

     private static Iterable<? extends HintDescription> readHints(ClassPath sourceFrom, ClassPath binaryFrom, HintsSettings toEnableIn, Preferences toEnableInPreferencesHack, boolean declarativeEnabledByDefault) {

         Map<HintMetadata, ? extends Collection<? extends HintDescription>> hardcoded = RulesManager.getInstance().readHints(null, Arrays.<ClassPath>asList(), null);

         Map<HintMetadata, ? extends Collection<? extends HintDescription>> all = RulesManager.getInstance().readHints(null, Arrays.asList(sourceFrom, binaryFrom), null);

         List<HintDescription> descs = new LinkedList<HintDescription>();

         for (Entry<HintMetadata, ? extends Collection<? extends HintDescription>> entry: all.entrySet()) {

             if (hardcoded.containsKey(entry.getKey())) {

                 if (toEnableIn.isEnabled(entry.getKey())) {

                     descs.addAll(entry.getValue());

                 }

             } else {

                 if (/*XXX: hack*/toEnableInPreferencesHack.node(entry.getKey().id).getBoolean("enabled", declarativeEnabledByDefault)) {

                     descs.addAll(entry.getValue());

                 }

             }

         }

         return descs;

     }

     private static final Logger TOP_LOGGER = Logger.getLogger("");

     private static void prepareLoggers() {

         TOP_LOGGER.setLevel(Level.OFF);

         System.setProperty("RepositoryUpdate.increasedLogLevel", "OFF");

     }

     private static void findOccurrences(Iterable<? extends HintDescription> descs, Folder[] sourceRoot, ProgressHandleWrapper progress, HintsSettings settings, File out) throws IOException {

         final Map<String, String> id2DisplayName = new HashMap<String, String>();

         for (HintDescription hd : descs) {

             if (hd.getMetadata() != null) {

                 id2DisplayName.put(hd.getMetadata().id, hd.getMetadata().displayName);

             }

         }

         ProgressHandleWrapper w = progress.startNextPartWithEmbedding(1, 1);

         BatchResult occurrences = BatchSearch.findOccurrences(descs, Scopes.specifiedFoldersScope(sourceRoot), w, settings);

         List<MessageImpl> problems = new LinkedList<MessageImpl>();

         BatchSearch.getVerifiedSpans(occurrences, progress, new VerifiedSpansCallBack() {

             @Override public void groupStarted() {}

             @Override public boolean spansVerified(CompilationController wc, Resource r, Collection<? extends ErrorDescription> hints) throws Exception {

                 for (ErrorDescription ed : hints) {

                     print(ed, id2DisplayName);

                 }

                 return true;

             }

             @Override public void groupFinished() {}

             @Override public void cannotVerifySpan(Resource r) {

                 //TODO: ignored - what to do?

             }

         }, problems, new AtomicBoolean());

     }

     private static void print(ErrorDescription error, Map<String, String> id2DisplayName) throws IOException {

         int lineNumber = error.getRange().getBegin().getLine();

         String line = error.getFile().asLines().get(lineNumber);

         int column = error.getRange().getBegin().getColumn();

         StringBuilder b = new StringBuilder();

         for (int i = 0; i < column; i++) {

             if (Character.isWhitespace(line.charAt(i))) {

                 b.append(line.charAt(i));

             } else {

                 b.append(' ');

             }

         }

         b.append('^');

         String id = error.getId();

         if (id != null && id.startsWith("text/x-java:")) {

             id = id.substring("text/x-java:".length());

         }

         String idDisplayName = id2DisplayName.get(id);

         if (idDisplayName == null) {

             idDisplayName = "unknown";

         }

         for (Entry<String, String> remap : toIdRemap.entrySet()) {

             idDisplayName = idDisplayName.replace(remap.getKey(), remap.getValue());

         }

         idDisplayName = idDisplayName.replaceAll("[^A-Za-z0-9]", "_").replaceAll("_+", "_");

         idDisplayName = "[" + idDisplayName + "] ";

         System.out.println(FileUtil.getFileDisplayName(error.getFile()) + ":" + (lineNumber + 1) + ": warning: " + idDisplayName + error.getDescription());

         System.out.println(line);

         System.out.println(b);

     }

     private static final Map<String, String> toIdRemap = new HashMap<String, String>() {{

         put("==", "equals");

         put("!=", "not_equals");

     }};

     private static void apply(Iterable<? extends HintDescription> descs, Folder[] sourceRoot, ProgressHandleWrapper progress, HintsSettings settings, File out) throws IOException {

         ProgressHandleWrapper w = progress.startNextPartWithEmbedding(1, 1);

         BatchResult occurrences = BatchSearch.findOccurrences(descs, Scopes.specifiedFoldersScope(sourceRoot), w, settings);

         List<MessageImpl> problems = new LinkedList<MessageImpl>();

         Collection<ModificationResult> diffs = BatchUtilities.applyFixes(occurrences, w, new AtomicBoolean(), problems);

         if (out != null) {

             Writer outS = null;

             try {

                 outS = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(out)));

                 for (ModificationResult mr : diffs) {

                     org.netbeans.modules.jackpot30.indexing.batch.BatchUtilities.exportDiff(mr, null, outS);

                 }

             } finally {

                 try {

                     outS.close();

                 } catch (IOException ex) {

                     Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);

                 }

             }

         } else {

             for (ModificationResult mr : diffs) {

                 mr.commit();

             }

         }

     }

     private static void printHints(ClassPath sourceFrom, ClassPath binaryFrom) throws IOException {

         Set<String> hints = new TreeSet<String>();

         for (Entry<HintMetadata, Collection<? extends HintDescription>> e : listHints(sourceFrom, binaryFrom).entrySet()) {

             hints.add(e.getKey().displayName);

         }

         for (String h : hints) {

             System.out.println(h);

         }

     }

     private static ClassPath createDefaultBootClassPath() throws IOException {

         try {

             String cp = System.getProperty("sun.boot.class.path");

             List<URL> urls = new ArrayList<URL>();

             String[] paths = cp.split(Pattern.quote(System.getProperty("path.separator")));

             for (String path : paths) {

                 File f = new File(path);

                 if (!f.canRead())

                     continue;

                 FileObject fo = FileUtil.toFileObject(FileUtil.normalizeFile(f));

                 if (FileUtil.isArchiveFile(fo)) {

                     fo = FileUtil.getArchiveRoot(fo);

                 }

                 if (fo != null) {

                     urls.add(fo.getURL());

                 }

             }

             return ClassPathSupport.createClassPath(urls.toArray(new URL[0]));

         } catch (FileStateInvalidException e) {

             throw e;

         }

     }

     private static ClassPath createClassPath(Iterable<? extends File> roots, ClassPath def) {

         if (roots == null) return def;

         List<URL> rootURLs = new ArrayList<URL>();

         for (File r : roots) {

             rootURLs.add(FileUtil.urlForArchiveOrDir(r));

         }

         return ClassPathSupport.createClassPath(rootURLs.toArray(new URL[0]));

     }

     private static void showGUICustomizer(File settingsFile, ClassPath binaryCP, ClassPath sourceCP) throws IOException, BackingStoreException {

         GlobalPathRegistry.getDefault().register(ClassPath.COMPILE, new ClassPath[] {binaryCP});

         GlobalPathRegistry.getDefault().register(ClassPath.SOURCE, new ClassPath[] {sourceCP});

         ClassPathBasedHintWrapper hints = new ClassPathBasedHintWrapper();

         final Preferences p = XMLHintPreferences.from(settingsFile);

         JPanel hintPanel = new HintsPanel(p.node("settings"), hints, true);

         final JCheckBox runDeclarativeHints = new JCheckBox("Always Run Declarative Rules");

         runDeclarativeHints.setToolTipText("Always run the declarative rules found on classpath? (Only those selected above will be run when unchecked.)");

         runDeclarativeHints.setSelected(p.getBoolean("runDeclarative", true));

         runDeclarativeHints.addActionListener(new ActionListener() {

             @Override public void actionPerformed(ActionEvent e) {

                 p.putBoolean("runDeclarative", runDeclarativeHints.isSelected());

             }

         });

         JPanel customizer = new JPanel(new BorderLayout());

         customizer.add(hintPanel, BorderLayout.CENTER);

         customizer.add(runDeclarativeHints, BorderLayout.SOUTH);

         JOptionPane jop = new JOptionPane(customizer, JOptionPane.PLAIN_MESSAGE);

         JDialog dialog = jop.createDialog("Select Hints");

         jop.selectInitialValue();

         dialog.setVisible(true);

         dialog.dispose();

         Object result = jop.getValue();

         if (result.equals(JOptionPane.OK_OPTION)) {

             p.flush();

         }

     }

     @ServiceProvider(service=Lookup.class)

     public static final class LookupProviderImpl extends ProxyLookup {

         public LookupProviderImpl() {

             super(Lookups.forPath("Services/AntBasedProjectTypes"));

         }

     }

     public static final class ClassPathProviderImpl implements ClassPathProvider {

         private final ClassPath boot;

         private final ClassPath compile;

         private final ClassPath source;

         public ClassPathProviderImpl(ClassPath boot, ClassPath compile, ClassPath source) {

             this.boot = boot;

             this.compile = compile;

             this.source = source;

         }

         @Override

         public ClassPath findClassPath(FileObject file, String type) {

             if (source.findOwnerRoot(file) != null) {

                 if (ClassPath.BOOT.equals(type)) {

                     return boot;

                 } else if (ClassPath.COMPILE.equals(type)) {

                     return compile;

                 } else  if (ClassPath.SOURCE.equals(type)) {

                     return source;

                 }

             }

             return null;

         }

     }

     public static final class SourceLevelQueryImpl implements SourceLevelQueryImplementation2 {

         private final ClassPath sourceCP;

         private final Result sourceLevel;

         public SourceLevelQueryImpl(ClassPath sourceCP, final String sourceLevel) {

             this.sourceCP = sourceCP;

             this.sourceLevel = new Result() {

                 @Override public String getSourceLevel() {

                     return sourceLevel;

                 }

                 @Override public void addChangeListener(ChangeListener listener) {}

                 @Override public void removeChangeListener(ChangeListener listener) {}

             };

         }

         @Override

         public Result getSourceLevel(FileObject javaFile) {

             if (sourceCP.findOwnerRoot(javaFile) != null) {

                 return sourceLevel;

             } else {

                 return null;

             }

         }

     }

     private static final class ConsoleProgressHandleAbstraction implements ProgressHandleAbstraction {

         private final int width = 80;

         private int total = -1;

         private int current = 0;

         public ConsoleProgressHandleAbstraction() {

         }

         @Override

         public synchronized void start(int totalWork) {

             if (total != (-1)) throw new UnsupportedOperationException();

             total = totalWork;

             update();

         }

         @Override

         public synchronized void progress(int currentWorkDone) {

             current = currentWorkDone;

             update();

         }

         @Override

         public void progress(String message) {

         }

         @Override

         public void finish() {

         }

         private void update() {

             RequestProcessor.getDefault().post(new Runnable() {

                 @Override

                 public void run() {

                     doUpdate();

                 }

             });

         }

         private int currentShownDone = -1;

         private void doUpdate() {

             int done;

             synchronized(this) {

                 done = (int) ((((double) width - 2) / total) * current);

                 if (done == currentShownDone) {

                     return;

                 }

                 currentShownDone = done;

             }

             int todo = width - done;

             PrintStream pw = System.out;

             pw.print("[");

             while (done-- > 0) {

                 pw.print("=");

             }

             while (todo-- > 0) {

                 pw.print(" ");

             }

             pw.print("]\r");

         }

     }

 }