Java 类com.intellij.openapi.util.io.UniqueNameBuilder 实例源码

@NotNull
@Override
public String getUniqueVirtualFilePath(Project project, VirtualFile file) {
  final Collection<VirtualFile> filesWithSameName = FilenameIndex.getVirtualFilesByName(project, file.getName(),
                                                                                        ProjectScope.getProjectScope(project));
  if (filesWithSameName.size() > 1 && filesWithSameName.contains(file)) {
    String path = project.getBasePath();
    path = path == null ? "" : FileUtil.toSystemIndependentName(path);
    UniqueNameBuilder<VirtualFile> builder = new UniqueNameBuilder<VirtualFile>(path, File.separator, 25);
    for (VirtualFile virtualFile: filesWithSameName) {
      builder.addPath(virtualFile, virtualFile.getPath());
    }
    return builder.getShortPath(file);
  }
  return file.getName();
}

protected RecentProjectItemRenderer(UniqueNameBuilder<ReopenProjectAction> pathShortener) {
  super(new VerticalFlowLayout());
  myShortener = pathShortener;
  myPath.setFont(JBUI.Fonts.label(SystemInfo.isMac ? 10f : 11f));
  setFocusable(true);
  layoutComponents();
}

public void testRoot() {
  UniqueNameBuilder<String> builder = new UniqueNameBuilder<String>("/Users/yole/idea", "/", 100);
  builder.addPath("A", "/Users/yole/idea/build/scripts/layouts.gant");
  builder.addPath("B", "/Users/yole/idea/community/build/scripts/layouts.gant");
  assertEquals("build/\u2026/layouts.gant", builder.getShortPath("A"));
  assertEquals("community/\u2026/layouts.gant", builder.getShortPath("B"));

  builder = new UniqueNameBuilder<String>("", "/", 100);
  builder.addPath("A", "build/scripts/layouts.gant");
  builder.addPath("B", "community/build/scripts/layouts.gant");
  assertEquals("build/\u2026/layouts.gant", builder.getShortPath("A"));
  assertEquals("community/\u2026/layouts.gant", builder.getShortPath("B"));
}

public void testShortenNames() {
  UniqueNameBuilder<String> builder = new UniqueNameBuilder<String>("/Users/yole/idea", "/", 25);
  builder.addPath("A", "/Users/yole/idea/build/scripts/layouts.gant");
  builder.addPath("B", "/Users/yole/idea/community/build/scripts/layouts.gant");
  assertEquals("build/\u2026/layouts.gant", builder.getShortPath("A"));
  assertEquals("community/\u2026/layouts.gant", builder.getShortPath("B"));
}

public void testShortenNamesUnique() {
  UniqueNameBuilder<String> builder = new UniqueNameBuilder<String>("/Users/yole/idea", "/", 25);
  builder.addPath("A", "/Users/yole/idea/pycharm/download/index.html");
  builder.addPath("B", "/Users/yole/idea/pycharm/documentation/index.html");
  builder.addPath("C", "/Users/yole/idea/fabrique/download/index.html");
  assertEquals("pycharm/\u2026/index.html", builder.getShortPath("A"));
}

public void testShortenNamesUnique2() {
  UniqueNameBuilder<String> builder = new UniqueNameBuilder<String>("/Users/yole/idea", "/", 25);
  builder.addPath("A", "source/components/views/something/tmpl/default.php");
  builder.addPath("B", "source/components/views/something_else/tmpl/default.php");
  assertEquals("something/\u2026/default.php", builder.getShortPath("A"));
  assertEquals("something_else/\u2026/default.php", builder.getShortPath("B"));
}

public void testFilesWithoutExtensions() {
  UniqueNameBuilder<String> builder = new UniqueNameBuilder<String>("", "/", 25);
  builder.addPath("A", "foo/.htaccess");
  builder.addPath("B", "bar/.htaccess");
  assertEquals("foo/.htaccess", UniqueVFilePathBuilderImpl.getEditorTabText("A", builder, false));
  assertEquals("foo/.htaccess", UniqueVFilePathBuilderImpl.getEditorTabText("A", builder, true));

}

@Nullable
private static UniqueNameBuilder<VirtualFile> filesWithTheSameName(String fileName, Project project,
                                                            boolean skipNonOpenedFiles,
                                                            GlobalSearchScope scope) {
  Collection<VirtualFile> filesWithSameName = skipNonOpenedFiles ? Collections.<VirtualFile>emptySet() :
                                              FilenameIndex.getVirtualFilesByName(project, fileName,
                                                                                  scope);
  THashSet<VirtualFile> setOfFilesWithTheSameName = new THashSet<VirtualFile>(filesWithSameName);
  // add open files out of project scope
  for(VirtualFile openFile: FileEditorManager.getInstance(project).getOpenFiles()) {
    if (openFile.getName().equals(fileName)) {
      setOfFilesWithTheSameName.add(openFile);
    }
  }
  for (VirtualFile recentlyEditedFile : EditorHistoryManager.getInstance(project).getFiles()) {
    if (recentlyEditedFile.getName().equals(fileName)) {
      setOfFilesWithTheSameName.add(recentlyEditedFile);
    }
  }

  filesWithSameName = setOfFilesWithTheSameName;

  if (filesWithSameName.size() > 1) {
    String path = project.getBasePath();
    path = path == null ? "" : FileUtil.toSystemIndependentName(path);
    UniqueNameBuilder<VirtualFile> builder = new UniqueNameBuilder<VirtualFile>(path, File.separator, 25);
    for (VirtualFile virtualFile: filesWithSameName) {
      builder.addPath(virtualFile, virtualFile.getPath());
    }
    return builder;
  }
  return null;
}

public static <T> String getEditorTabText(T key, UniqueNameBuilder<T> builder, boolean hideKnownExtensionInTabs) {
  String result = builder.getShortPath(key);
  if (hideKnownExtensionInTabs) {
    String withoutExtension = FileUtil.getNameWithoutExtension(result);
    if (StringUtil.isNotEmpty(withoutExtension) && !withoutExtension.endsWith(builder.getSeparator())) {
      return withoutExtension;
    }
  }
  return result;
}

public void testRoot() {
  UniqueNameBuilder<String> builder = new UniqueNameBuilder<String>("/Users/yole/idea", "/", 100);
  builder.addPath("A", "/Users/yole/idea/build/scripts/layouts.gant");
  builder.addPath("B", "/Users/yole/idea/community/build/scripts/layouts.gant");
  assertEquals("build/\u2026/layouts.gant", builder.getShortPath("A"));
  assertEquals("community/\u2026/layouts.gant", builder.getShortPath("B"));

  builder = new UniqueNameBuilder<String>("", "/", 100);
  builder.addPath("A", "build/scripts/layouts.gant");
  builder.addPath("B", "community/build/scripts/layouts.gant");
  assertEquals("build/\u2026/layouts.gant", builder.getShortPath("A"));
  assertEquals("community/\u2026/layouts.gant", builder.getShortPath("B"));
}

public void testShortenNames() {
  UniqueNameBuilder<String> builder = new UniqueNameBuilder<String>("/Users/yole/idea", "/", 25);
  builder.addPath("A", "/Users/yole/idea/build/scripts/layouts.gant");
  builder.addPath("B", "/Users/yole/idea/community/build/scripts/layouts.gant");
  assertEquals("build/\u2026/layouts.gant", builder.getShortPath("A"));
  assertEquals("community/\u2026/layouts.gant", builder.getShortPath("B"));
}

public void testShortenNamesUnique() {
  UniqueNameBuilder<String> builder = new UniqueNameBuilder<String>("/Users/yole/idea", "/", 25);
  builder.addPath("A", "/Users/yole/idea/pycharm/download/index.html");
  builder.addPath("B", "/Users/yole/idea/pycharm/documentation/index.html");
  builder.addPath("C", "/Users/yole/idea/fabrique/download/index.html");
  assertEquals("pycharm/\u2026/index.html", builder.getShortPath("A"));
}

public void testShortenNamesUnique2() {
  UniqueNameBuilder<String> builder = new UniqueNameBuilder<String>("/Users/yole/idea", "/", 25);
  builder.addPath("A", "source/components/views/something/tmpl/default.php");
  builder.addPath("B", "source/components/views/something_else/tmpl/default.php");
  assertEquals("something/\u2026/default.php", builder.getShortPath("A"));
  assertEquals("something_else/\u2026/default.php", builder.getShortPath("B"));
}

public void testRoot() {
  UniqueNameBuilder<String> builder = new UniqueNameBuilder<String>("/Users/yole/idea", "/", 100);
  builder.addPath("A", "/Users/yole/idea/build/scripts/layouts.gant");
  builder.addPath("B", "/Users/yole/idea/community/build/scripts/layouts.gant");
  assertEquals("build/\u2026/layouts.gant", builder.getShortPath("A"));
  assertEquals("community/\u2026/layouts.gant", builder.getShortPath("B"));

  builder = new UniqueNameBuilder<String>("", "/", 100);
  builder.addPath("A", "build/scripts/layouts.gant");
  builder.addPath("B", "community/build/scripts/layouts.gant");
  assertEquals("build/\u2026/layouts.gant", builder.getShortPath("A"));
  assertEquals("community/\u2026/layouts.gant", builder.getShortPath("B"));
}

public void testShortenNames() {
  UniqueNameBuilder<String> builder = new UniqueNameBuilder<String>("/Users/yole/idea", "/", 25);
  builder.addPath("A", "/Users/yole/idea/build/scripts/layouts.gant");
  builder.addPath("B", "/Users/yole/idea/community/build/scripts/layouts.gant");
  assertEquals("build/\u2026/layouts.gant", builder.getShortPath("A"));
  assertEquals("community/\u2026/layouts.gant", builder.getShortPath("B"));
}

public void testShortenNamesUnique() {
  UniqueNameBuilder<String> builder = new UniqueNameBuilder<String>("/Users/yole/idea", "/", 25);
  builder.addPath("A", "/Users/yole/idea/pycharm/download/index.html");
  builder.addPath("B", "/Users/yole/idea/pycharm/documentation/index.html");
  builder.addPath("C", "/Users/yole/idea/fabrique/download/index.html");
  assertEquals("pycharm/\u2026/index.html", builder.getShortPath("A"));
}

public void testShortenNamesUnique2() {
  UniqueNameBuilder<String> builder = new UniqueNameBuilder<String>("/Users/yole/idea", "/", 25);
  builder.addPath("A", "source/components/views/something/tmpl/default.php");
  builder.addPath("B", "source/components/views/something_else/tmpl/default.php");
  assertEquals("something/\u2026/default.php", builder.getShortPath("A"));
  assertEquals("something_else/\u2026/default.php", builder.getShortPath("B"));
}

protected RecentProjectItemRenderer(UniqueNameBuilder<ReopenProjectAction> pathShortener) {
  super(new VerticalFlowLayout());
  myShortener = pathShortener;
  myPath.setFont(JBUI.Fonts.label(SystemInfo.isMac ? 10f : 11f));
  setFocusable(true);
  layoutComponents();
}

@Nullable
private static UniqueNameBuilder<VirtualFile> filesWithTheSameName(String fileName, Project project,
                                                                   boolean skipNonOpenedFiles,
                                                                   GlobalSearchScope scope) {
  Collection<VirtualFile> filesWithSameName = skipNonOpenedFiles ? Collections.emptySet() :
                                              FilenameIndex.getVirtualFilesByName(project, fileName,
                                                                                  scope);
  THashSet<VirtualFile> setOfFilesWithTheSameName = new THashSet<>(filesWithSameName);
  // add open files out of project scope
  for(VirtualFile openFile: FileEditorManager.getInstance(project).getOpenFiles()) {
    if (openFile.getName().equals(fileName)) {
      setOfFilesWithTheSameName.add(openFile);
    }
  }
  if (!skipNonOpenedFiles) {
    for (VirtualFile recentlyEditedFile : EditorHistoryManager.getInstance(project).getFiles()) {
      if (recentlyEditedFile.getName().equals(fileName)) {
        setOfFilesWithTheSameName.add(recentlyEditedFile);
      }
    }
  }

  filesWithSameName = setOfFilesWithTheSameName;

  if (filesWithSameName.size() > 1) {
    String path = project.getBasePath();
    path = path == null ? "" : FileUtil.toSystemIndependentName(path);
    UniqueNameBuilder<VirtualFile> builder = new UniqueNameBuilder<>(path, File.separator, 25);
    for (VirtualFile virtualFile: filesWithSameName) {
      builder.addPath(virtualFile, virtualFile.getPath());
    }
    return builder;
  }
  return null;
}

protected ListCellRenderer createRenderer(UniqueNameBuilder<ReopenProjectAction> pathShortener) {
  return new RecentProjectItemRenderer(pathShortener);
}

public void testSimple() {
  UniqueNameBuilder<String> builder = new UniqueNameBuilder<String>("", "/", 100);
  builder.addPath("A", "/Users/yole/idea/foo/bar.java");
  builder.addPath("B", "/Users/yole/idea/baz/bar.java");
  assertEquals("foo/bar.java", builder.getShortPath("A"));
}

public void testTwoLevel() {
  UniqueNameBuilder<String> builder = new UniqueNameBuilder<String>("", "/", 100);
  builder.addPath("A", "/Users/yole/idea/foo/buy/index.html");
  builder.addPath("B", "/Users/yole/idea/bar/buy/index.html");
  assertEquals("foo/\u2026/index.html", builder.getShortPath("A"));
}

public void testSeparator() {
  UniqueNameBuilder<String> builder = new UniqueNameBuilder<String>("", "\\", 100);
  builder.addPath("A", "/Users/yole/idea/foo/buy/index.html");
  builder.addPath("B", "/Users/yole/idea/bar/buy/index.html");
  assertEquals("foo\\\u2026\\index.html", builder.getShortPath("A"));
}

private static String getUniqueVirtualFilePath(final Project project, VirtualFile file, final boolean skipNonOpenedFiles) {
  Key<CachedValue<ConcurrentMap<String, UniqueNameBuilder<VirtualFile>>>> key =
    skipNonOpenedFiles ?  ourShortNameOpenedBuilderCacheKey:ourShortNameBuilderCacheKey;
  CachedValue<ConcurrentMap<String, UniqueNameBuilder<VirtualFile>>> data = project.getUserData(key);
  if (data == null) {
    project.putUserData(key, data = CachedValuesManager.getManager(project).createCachedValue(
      new CachedValueProvider<ConcurrentMap<String, UniqueNameBuilder<VirtualFile>>>() {
        @Nullable
        @Override
        public Result<ConcurrentMap<String, UniqueNameBuilder<VirtualFile>>> compute() {
          return new Result<ConcurrentMap<String, UniqueNameBuilder<VirtualFile>>>(
            ContainerUtil.<String, UniqueNameBuilder<VirtualFile>>createConcurrentSoftValueMap(),
            PsiModificationTracker.MODIFICATION_COUNT,
            //ProjectRootModificationTracker.getInstance(project),
            //VirtualFileManager.VFS_STRUCTURE_MODIFICATIONS,
            FileEditorManagerImpl.OPEN_FILE_SET_MODIFICATION_COUNT
          );
        }
      }, false));
  }

  final ConcurrentMap<String, UniqueNameBuilder<VirtualFile>> valueMap = data.getValue();
  final String fileName = file.getName();
  UniqueNameBuilder<VirtualFile> uniqueNameBuilderForShortName = valueMap.get(fileName);

  if (uniqueNameBuilderForShortName == null) {
    final UniqueNameBuilder<VirtualFile> builder = filesWithTheSameName(
      fileName,
      project,
      skipNonOpenedFiles,
      ProjectScope.getProjectScope(project)
    );
    valueMap.put(fileName, builder != null ? builder:ourEmptyBuilder);
    uniqueNameBuilderForShortName = builder;
  } else if (uniqueNameBuilderForShortName == ourEmptyBuilder) {
    uniqueNameBuilderForShortName = null;
  }

  if (uniqueNameBuilderForShortName != null && uniqueNameBuilderForShortName.contains(file)) {
    if (file instanceof VirtualFilePathWrapper) {
      return ((VirtualFilePathWrapper)file).getPresentablePath();
    }
    return getEditorTabText(file, uniqueNameBuilderForShortName, UISettings.getInstance().HIDE_KNOWN_EXTENSION_IN_TABS);
  }
  return file.getPresentableName();
}

public void testSimple() {
  UniqueNameBuilder<String> builder = new UniqueNameBuilder<String>("", "/", 100);
  builder.addPath("A", "/Users/yole/idea/foo/bar.java");
  builder.addPath("B", "/Users/yole/idea/baz/bar.java");
  assertEquals("foo/bar.java", builder.getShortPath("A"));
}

public void testTwoLevel() {
  UniqueNameBuilder<String> builder = new UniqueNameBuilder<String>("", "/", 100);
  builder.addPath("A", "/Users/yole/idea/foo/buy/index.html");
  builder.addPath("B", "/Users/yole/idea/bar/buy/index.html");
  assertEquals("foo/\u2026/index.html", builder.getShortPath("A"));
}

public void testSeparator() {
  UniqueNameBuilder<String> builder = new UniqueNameBuilder<String>("", "\\", 100);
  builder.addPath("A", "/Users/yole/idea/foo/buy/index.html");
  builder.addPath("B", "/Users/yole/idea/bar/buy/index.html");
  assertEquals("foo\\\u2026\\index.html", builder.getShortPath("A"));
}

public void testSimple() {
  UniqueNameBuilder<String> builder = new UniqueNameBuilder<String>("", "/", 100);
  builder.addPath("A", "/Users/yole/idea/foo/bar.java");
  builder.addPath("B", "/Users/yole/idea/baz/bar.java");
  assertEquals("foo/bar.java", builder.getShortPath("A"));
}

public void testTwoLevel() {
  UniqueNameBuilder<String> builder = new UniqueNameBuilder<String>("", "/", 100);
  builder.addPath("A", "/Users/yole/idea/foo/buy/index.html");
  builder.addPath("B", "/Users/yole/idea/bar/buy/index.html");
  assertEquals("foo/\u2026/index.html", builder.getShortPath("A"));
}

public void testSeparator() {
  UniqueNameBuilder<String> builder = new UniqueNameBuilder<String>("", "\\", 100);
  builder.addPath("A", "/Users/yole/idea/foo/buy/index.html");
  builder.addPath("B", "/Users/yole/idea/bar/buy/index.html");
  assertEquals("foo\\\u2026\\index.html", builder.getShortPath("A"));
}

protected ListCellRenderer createRenderer(UniqueNameBuilder<ReopenProjectAction> pathShortener) {
  return new RecentProjectItemRenderer(pathShortener);
}

private static String getUniqueVirtualFilePath(final Project project, VirtualFile file, final boolean skipNonOpenedFiles, GlobalSearchScope scope) {
  Key<CachedValue<Map<GlobalSearchScope, Map<String, UniqueNameBuilder<VirtualFile>>>>> key =
          skipNonOpenedFiles ?  ourShortNameOpenedBuilderCacheKey:ourShortNameBuilderCacheKey;
  CachedValue<Map<GlobalSearchScope, Map<String, UniqueNameBuilder<VirtualFile>>>> data = project.getUserData(key);
  if (data == null) {
    project.putUserData(key, data = CachedValuesManager.getManager(project).createCachedValue(
            () -> new CachedValueProvider.Result<Map<GlobalSearchScope, Map<String, UniqueNameBuilder<VirtualFile>>>>(
                    new ConcurrentHashMap<>(2),
                    PsiModificationTracker.MODIFICATION_COUNT,
                    //ProjectRootModificationTracker.getInstance(project),
                    //VirtualFileManager.VFS_STRUCTURE_MODIFICATIONS,
                    FileEditorManagerImpl.OPEN_FILE_SET_MODIFICATION_COUNT
            ), false));
  }

  ConcurrentMap<GlobalSearchScope, Map<String, UniqueNameBuilder<VirtualFile>>> scope2ValueMap =
          (ConcurrentMap<GlobalSearchScope, Map<String,UniqueNameBuilder<VirtualFile>>>)data.getValue();
  Map<String, UniqueNameBuilder<VirtualFile>> valueMap = scope2ValueMap.get(scope);
  if (valueMap == null) {
    valueMap = ConcurrencyUtil.cacheOrGet(scope2ValueMap, scope, ContainerUtil.createConcurrentSoftValueMap());
  }

  final String fileName = file.getName();
  UniqueNameBuilder<VirtualFile> uniqueNameBuilderForShortName = valueMap.get(fileName);

  if (uniqueNameBuilderForShortName == null) {
    final UniqueNameBuilder<VirtualFile> builder = filesWithTheSameName(
            fileName,
            project,
            skipNonOpenedFiles,
            scope
    );
    valueMap.put(fileName, builder != null ? builder:ourEmptyBuilder);
    uniqueNameBuilderForShortName = builder;
  } else if (uniqueNameBuilderForShortName == ourEmptyBuilder) {
    uniqueNameBuilderForShortName = null;
  }

  if (uniqueNameBuilderForShortName != null && uniqueNameBuilderForShortName.contains(file)) {
    if (file instanceof VirtualFilePathWrapper) {
      return ((VirtualFilePathWrapper)file).getPresentablePath();
    }
    return uniqueNameBuilderForShortName.getShortPath(file);
  }
  return file.getName();
}