Java Code Examples for com.intellij.util.ArrayUtil#EMPTY_STRING_ARRAY

@Nonnull
String[] list(@Nonnull VirtualFile file) {
  String path = file.getPath();
  FileInfo[] fileInfo = myKernel.listChildren(path);
  if (fileInfo == null || fileInfo.length == 0) {
    return ArrayUtil.EMPTY_STRING_ARRAY;
  }

  String[] names = new String[fileInfo.length];
  TIntObjectHashMap<THashMap<String, FileAttributes>> map = getMap();
  int parentId = ((VirtualFileWithId)file).getId();
  THashMap<String, FileAttributes> nestedMap = map.get(parentId);
  if (nestedMap == null) {
    nestedMap = new THashMap<String, FileAttributes>(fileInfo.length, FileUtil.PATH_HASHING_STRATEGY);
    map.put(parentId, nestedMap);
  }
  for (int i = 0, length = fileInfo.length; i < length; i++) {
    FileInfo info = fileInfo[i];
    String name = info.getName();
    nestedMap.put(name, info.toFileAttributes());
    names[i] = name;
  }
  return names;
}
 

public String[] splitStringByLines(String str) {
  if (str == null) return ArrayUtil.EMPTY_STRING_ARRAY;
  if (str.equals(myString)) {
    return myLines;
  }
  myString = convertTabs(str, 2);

  ArrayList list = new ArrayList();
  StringTokenizer st = new StringTokenizer(str, "\n\r");
  while (st.hasMoreTokens()) {
    list.add(st.nextToken());
  }

  myLines = (String[])ArrayUtil.toStringArray(list);
  return myLines;
}
 

private static Collection<? extends PackagingSourceItem> createModuleItems(ArtifactEditorContext editorContext, Artifact artifact,
                                                                           @Nonnull String[] groupPath) {
  final Module[] modules = editorContext.getModulesProvider().getModules();
  final List<PackagingSourceItem> items = new ArrayList<PackagingSourceItem>();
  Set<String> groups = new HashSet<String>();
  for (Module module : modules) {
    String[] path = ModuleManager.getInstance(editorContext.getProject()).getModuleGroupPath(module);
    if (path == null) {
      path = ArrayUtil.EMPTY_STRING_ARRAY;
    }

    if (Comparing.equal(path, groupPath)) {
      items.add(new ModuleSourceItemGroup(module));
    }
    else if (ArrayUtil.startsWith(path, groupPath)) {
      groups.add(path[groupPath.length]);
    }
  }
  for (String group : groups) {
    items.add(0, new ModuleGroupItem(ArrayUtil.append(groupPath, group)));
  }
  return items;
}
 

@Override
public String[] getActionIds(final Shortcut shortcut) {
  if (shortcut instanceof KeyboardShortcut) {
    final KeyboardShortcut kb = (KeyboardShortcut)shortcut;
    final KeyStroke first = kb.getFirstKeyStroke();
    final KeyStroke second = kb.getSecondKeyStroke();
    return second != null ? getActionIds(first, second) : getActionIds(first);
  }
  else if (shortcut instanceof MouseShortcut) {
    return getActionIds((MouseShortcut)shortcut);
  }
  else if (shortcut instanceof KeyboardModifierGestureShortcut) {
    return getActionIds((KeyboardModifierGestureShortcut)shortcut);
  }
  else {
    return ArrayUtil.EMPTY_STRING_ARRAY;
  }
}
 

public static String[] getValuesOfVariableIfFound(String text) {
  if (StringUtil.isEmptyOrSpaces(text)) {
    return ArrayUtil.EMPTY_STRING_ARRAY;
  }
  if (text.startsWith(LIST_VARIABLE_START)) {
    Collection<String> valuesOf = getValuesOf(text);
    if (valuesOf.isEmpty()) {
      return ArrayUtil.EMPTY_STRING_ARRAY;
    }
    return ArrayUtil.toStringArray(valuesOf);
  }
  else {
    List<String> split = StringUtil.split(text, ",");
    return ArrayUtil.toStringArray(split);
  }
}
 

@Override
public String[] getEnumeratedValues() {
    if (enumValue == null) {
        return ArrayUtil.EMPTY_STRING_ARRAY;
    }
    return enumValue.toArray(new String[enumValue.size()]);
}
 

@Override
public String[] getActionIds(KeyStroke firstKeyStroke) {
  // first, get keystrokes from own map
  List<String> list = getKeystroke2ListOfIds().get(firstKeyStroke);
  if (myParent != null) {
    String[] ids = getParentActionIds(firstKeyStroke);
    if (ids.length > 0) {
      boolean originalListInstance = true;
      for (String id : ids) {
        // add actions from parent keymap only if they are absent in this keymap
        if (!myActionId2ListOfShortcuts.containsKey(id)) {
          if (list == null) {
            list = new ArrayList<String>();
            originalListInstance = false;
          }
          else if (originalListInstance) {
            list = new ArrayList<String>(list);
            originalListInstance = false;
          }
          if (!list.contains(id)) list.add(id);
        }
      }
    }
  }
  if (list == null) return ArrayUtil.EMPTY_STRING_ARRAY;
  return sortInOrderOfRegistration(ArrayUtil.toStringArray(list));
}
 

@Nonnull
public String[] list(@Nonnull String relativePath) {
  EntryInfo entry = getEntryInfo(relativePath);
  if (entry == null || !entry.isDirectory) return ArrayUtil.EMPTY_STRING_ARRAY;

  Set<String> names = new THashSet<String>();
  for (EntryInfo info : getEntriesMap().values()) {
    if (info.parent == entry) {
      names.add(info.shortName.toString());
    }
  }
  return ArrayUtil.toStringArray(names);
}
 

@Nonnull
@Override
public String[] getUrls(@Nonnull ModuleRootModel moduleRootModel, @Nonnull Predicate<ContentFolderTypeProvider> predicate) {
  if (predicate.apply(ProductionContentFolderTypeProvider.getInstance())) {
    return new String[]{moduleRootModel.getModule().getModuleDirUrl()};
  }
  return ArrayUtil.EMPTY_STRING_ARRAY;
}
 

@Nonnull
@Override
public String[] getContentRootUrls() {
  if (getContent().isEmpty()) return ArrayUtil.EMPTY_STRING_ARRAY;
  final ArrayList<String> result = new ArrayList<>(getContent().size());

  for (ContentEntry contentEntry : getContent()) {
    result.add(contentEntry.getUrl());
  }

  return ArrayUtil.toStringArray(result);
}
 

public String[] list() {
  return ArrayUtil.EMPTY_STRING_ARRAY;
}
 

public String[] getDependencyFeatures() {
  if (myDependencies == null) return ArrayUtil.EMPTY_STRING_ARRAY;
  return ArrayUtil.toStringArray(myDependencies);
}
 

@Nonnull
@Override
public String[] getAssociatedExtensions(@Nonnull FileType type) {
  return ArrayUtil.EMPTY_STRING_ARRAY;
}
 

@Nonnull
@Override
public String[] getToolWindowIds() {
  return ArrayUtil.EMPTY_STRING_ARRAY;
}
 

@Override
@Nonnull
public String[] getAssociatedExtensions(@Nonnull FileType type) {
  return ArrayUtil.EMPTY_STRING_ARRAY;
}
 

@Override
@Nonnull
public String[] getUrls(OrderRootType rootType) {
  final OrderRootsEnumerator enumerator = getEnumerator(rootType);
  return enumerator != null ? enumerator.getUrls() : ArrayUtil.EMPTY_STRING_ARRAY;
}
 

private MyListModel() {
  myValues = ArrayUtil.EMPTY_STRING_ARRAY;
}
 

@Nonnull
public static String[] tokenize(CharSequence chars, final boolean includeSeparators, final boolean skipLastEmptyLine) {
  final List<String> strings = tokenizeIntoList(chars, includeSeparators, skipLastEmptyLine);
  return strings.isEmpty() ? ArrayUtil.EMPTY_STRING_ARRAY : ArrayUtil.toStringArray(strings);
}
 

/**
 * @return all supported sub views IDs.
 * should return empty array if there is no subViews as in Project/Packages view.
 */
@Nonnull
public String[] getSubIds() {
  return ArrayUtil.EMPTY_STRING_ARRAY;
}
 

@Override
public String[] getAllFieldNames() {
  return ArrayUtil.EMPTY_STRING_ARRAY;
}