org.openide.filesystems.FileUtil类的使用及代码示例

x33g5p2x  于2022-01-19 转载在 其他  
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本文整理了Java中org.openide.filesystems.FileUtil类的一些代码示例，展示了FileUtil类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。FileUtil类的具体详情如下：
包路径：org.openide.filesystems.FileUtil
类名称：FileUtil

FileUtil介绍

[英]Common utilities for handling files. This is a dummy class; all methods are static.
[中]处理文件的常用工具。这是一个虚拟类；所有方法都是静态的。

代码示例

代码示例来源：origin: org.netbeans.api/org-openide-filesystems

/**
 * Returns a FileObject representing an archive file containing the
 * FileObject given by the parameter.
 * <strong>Remember</strong> that any path within the archive is discarded
 * so you may need to check for non-root entries.
 * @param fo a file in a JAR filesystem
 * @return the file corresponding to the archive itself,
 *         or null if <code>fo</code> is not an archive entry
 * @since 4.48
 */
public static FileObject getArchiveFile(FileObject fo) {
  Parameters.notNull("fo", fo);   //NOI18N
  try {
    FileSystem fs = fo.getFileSystem();
    if (fs instanceof JarFileSystem) {
      File jarFile = ((JarFileSystem) fs).getJarFile();
      return toFileObject(jarFile);
    }
  } catch (FileStateInvalidException e) {
    Exceptions.printStackTrace(e);
  }
  return null;
}

代码示例来源：origin: org.netbeans.api/org-openide-filesystems

FileObject newUserDefinedFO = null;
try {
  FileObject resolversFolder = FileUtil.getConfigFile(MIME_RESOLVERS_PATH);
  if (resolversFolder == null) {
    resolversFolder = FileUtil.createFolder(FileUtil.getConfigRoot(), MIME_RESOLVERS_PATH);
  newUserDefinedFO = resolversFolder.createData(USER_DEFINED_MIME_RESOLVER, "xml");  //NOI18N
  newUserDefinedFO.setAttribute(USER_DEFINED_MIME_RESOLVER, Boolean.TRUE);
  newUserDefinedFO.setAttribute("position", USER_DEFINED_MIME_RESOLVER_POSITION);  //NOI18N
  os = newUserDefinedFO.getOutputStream();
  XMLUtil.write(document, os, "UTF-8"); //NOI18N
} catch (IOException e) {
  ERR.log(Level.SEVERE, "Cannot write resolver " + (newUserDefinedFO == null ? "" : FileUtil.toFile(newUserDefinedFO)), e);  //NOI18N
} finally {
  if (os != null) {
      os.close();
    } catch (IOException e) {
      ERR.log(Level.SEVERE, "Cannot close OutputStream of file " + (newUserDefinedFO == null ? "" : FileUtil.toFile(newUserDefinedFO)), e);  //NOI18N

代码示例来源：origin: org.netbeans.api/org-openide-filesystems

void locateCurrent() {
  FileObject oldCurrent = current;
  currentF = FileUtil.normalizeFile(path);
  while (true) {
    current = FileUtil.toFileObject(currentF);
    if (current != null) {
      isOnTarget = path.equals(currentF);
      break;
    }
    currentF = currentF.getParentFile();
    if (currentF == null) {
      // #47320: can happen on Windows in case the drive does not exist.
      // (Inside constructor for Holder.) In that case skip it.
      return;
    }
  }
  assert current != null;
  if (current != oldCurrent) {
    if (oldCurrent != null) {
      oldCurrent.removeFileChangeListener(this);
    }
    current.addFileChangeListener(this);
    current.getChildren(); //to get events about children
  }
}

代码示例来源：origin: org.netbeans.api/org-openide-filesystems

private static FileSystem getDiskFileSystemFor(File... files) {
  FileSystem fs = getDiskFileSystem();
  if (fs == null) {
    for (File file : files) {
      FileObject fo = toFileObject(file);
      fs = getDiskFileSystem();
      if (fs != null) {
        break;
      }
    }
  }
  return fs;
}

代码示例来源：origin: org.netbeans.api/org-openide-filesystems

FileObject folderFo = FileUtil.toFileObject(folder);
assert folderFo != null : folder.getAbsolutePath();
final String relativePath = getRelativePath(folder, data);
try {
  retval = FileUtil.createData(folderFo,relativePath);        
} catch (IOException ex) {
if (retval == null || !retval.isValid()) {
  folderFo.getFileSystem().refresh(false);
  retval = FileUtil.createData(folderFo,relativePath);

代码示例来源：origin: nl.cloudfarming.client/import

@Override
  public void run() {
    LOGGER.log(Level.FINEST, "ImportWorker: starting import for selected file {0}", file.getAbsolutePath());
    // search for available processor
    for (ImportProcessor importProcessor : Lookup.getDefault().lookupAll(ImportProcessor.class)) {
      FileObject fo = FileUtil.toFileObject(file);
      if (fo != null && importProcessor.isSupported(fo)) {
        LOGGER.log(Level.FINEST, "ImportWorker: Processor found for file {0}", importProcessor.toString());
        try {
          DataObject dataObject = DataObject.find(fo);
          ImportSource source = dataObject.getLookup().lookup(ImportSource.class);
          if (source != null) {
            importProcessor.doImport(fo, context);
          }else{
            LOGGER.log(Level.FINEST, "Data object {0} for file {1} did not contain an import source", new Object[]{dataObject.toString(), fo.toString()});
          }
        } catch (DataObjectNotFoundException ex) {
          Exceptions.printStackTrace(ex);
        }
        break;
      }
    }
  }
}

代码示例来源：origin: org.netbeans.api/org-openide-filesystems

private static Lookup[] computeDelegates(String p, List<FOItem> items, Lookup lkp) {
  FileObject fo = FileUtil.getConfigFile(p);
  List<Lookup> delegates = new LinkedList<Lookup>();
  delegates.add(lkp);
  if (fo != null) {
    for (FileObject f : fo.getChildren()) {
      if (f.isFolder()) {
        delegates.add(new OverFiles(f.getPath()));
      } else {
        if (f.hasExt("shadow")) {
          Object real = f.getAttribute("originalFile"); // NOI18N
          if (real instanceof String) {
            f = FileUtil.getConfigFile((String)real);
  ClassLoader l = Lookup.getDefault().lookup(ClassLoader.class);
  if (l == null) {
    l = Thread.currentThread().getContextClassLoader();

代码示例来源：origin: org.gephi/desktop-recent-files

@Override
  public void actionPerformed(ActionEvent e) {
    FileObject fileObject = FileUtil.toFileObject(file);
    if (fileObject.hasExt(GEPHI_EXTENSION)) {
      ProjectControllerUI pc = Lookup.getDefault().lookup(ProjectControllerUI.class);
      try {
        pc.openProject(file);
      } catch (Exception ex) {
        Exceptions.printStackTrace(ex);
      }
    } else {
      ImportControllerUI importController = Lookup.getDefault().lookup(ImportControllerUI.class);
      if (importController.getImportController().isFileSupported(file)) {
        importController.importFile(fileObject);
      }
    }
  }
});

代码示例来源：origin: org.netbeans.api/org-netbeans-modules-java-source-base

FileObject doCreateFromTemplate(FileObject template, JavaFileObject sourceFile) throws IOException {
  FileObject scratchFolder = FileUtil.createMemoryFileSystem().getRoot();
  String name = FileObjects.getName(sourceFile, false);
  if (template == null) {
    return FileUtil.createData(scratchFolder, name);
  }
  FileObjectFromTemplateCreator creator = Lookup.getDefault().lookup(FileObjectFromTemplateCreator.class);
  if (creator == null) {
    return FileUtil.createData(scratchFolder, name);
  }
  File pack = BaseUtilities.toFile(sourceFile.toUri()).getParentFile();
  while (FileUtil.toFileObject(pack) == null) {
    pack = pack.getParentFile();
  }
  FileObject targetFolder = FileUtil.toFileObject(pack);
  scratchFolder.setAttribute(FileObjectFromTemplateCreator.ATTR_ORIG_FILE, targetFolder);
  return creator.create(template, scratchFolder, name);
}

代码示例来源：origin: AlexFalappa/nb-springboot

@Override
public void readSettings(WizardDescriptor wiz) {
  try {
    final Project project = Templates.getProject(wiz);
    NbMavenProject nbProj = project.getLookup().lookup(NbMavenProject.class);
    final URI[] resources = nbProj.getResources(false);
    File resourceFolder = FileUtil.normalizeFile(FileUtil.archiveOrDirForURL(resources[0].toURL()));
    File addMeta = new File(resourceFolder, "META-INF/additional-spring-configuration-metadata.json");
    if (addMeta.exists()) {
      wiz.putProperty(WizardDescriptor.PROP_WARNING_MESSAGE, "Existing additional metadata file will be overwritten!");
    }
  } catch (Exception ex) {
    Exceptions.printStackTrace(Exceptions.attachSeverity(ex, Level.WARNING));
  }
  getComponent().read(wiz);
}

代码示例来源：origin: org.netbeans.api/org-openide-filesystems

/** Converts the file to be writable.
* The file has to be locked!
*
* @return file object (new leader) that is writable
* @exception IOException if the object cannot be writable
*/
private FileObject writable(boolean copyContents) throws IOException {
  MultiFileSystem fs = getMultiFileSystem();
  FileSystem single = fs.createWritableOn(getPath());
  if (single != leader.getFileSystem()) {
    // if writing to a file that is not on writable fs =>
    // copy it
    if (leader.isFolder()) {
      leader = FileUtil.createFolder(root(single), getPath());
    } else {
      FileObject folder = FileUtil.createFolder(root(single), getParent().getPath());
      if (copyContents) {
        leader = leader.copy(folder, leader.getName(), leader.getExt());
      } else {
        leader = folder.createData(leader.getNameExt());
      }
    }
    MfLock l = ((lock == null) ? null : lock.get());
    if (l != null) {
      // update the lock
      l.addLock(leader);
    }
  }
  return leader;
}

代码示例来源：origin: org.netbeans.modules/org-netbeans-modules-cnd-makeproject

public static FileProxy createAbsolute(Project project, String path) {
  FileObject projectFO = project.getProjectDirectory();
  File projectFile = FileUtil.toFile(projectFO);
  if (projectFile == null) {
    try {
      return new FileProxyFileObject(projectFO.getFileSystem().getRoot(), path);
    } catch (FileStateInvalidException ex) {
      Exceptions.printStackTrace(ex);
      // I don't know how this is possible; but to avoid NPE let's return FileProxyFile
      return new FileProxyFile(new File(path));
    }
  } else {
    return new FileProxyFile(new File(path));
  }
}

代码示例来源：origin: org.netbeans.modules/org-netbeans-modules-groovy-grailsproject

@Override
  protected boolean enable(Node[] activatedNodes) {
    if (activatedNodes.length == 0) {
      return false;
    }
    DataObject dataObject = activatedNodes[0].getLookup().lookup(DataObject.class);

    if (dataObject == null || dataObject.getFolder() == null) {
      return false;
    }

    Project prj = FileOwnerQuery.getOwner(dataObject.getFolder().getPrimaryFile());
    if (prj == null) {
      return false;
    }
    FileObject domainDir = prj.getProjectDirectory().getFileObject(DOMAIN_DIR);
    if (domainDir == null) {
      return false;
    }

    return FileUtil.isParentOf(domainDir, dataObject.getPrimaryFile());
  }
}

代码示例来源：origin: org.netbeans.api/org-netbeans-modules-java-project-ui

@Override public String getName() {
  if (parent != null) {
    DataObject d = getLookup().lookup(DataObject.class);
    if (d != null) {
      final String relName = FileUtil.getRelativePath(parent.getPrimaryFile(), d.getPrimaryFile());
      //Null after DO move.
      if (relName != null) {
        return relName.replace('/', '.');   //NOI18N
      }
    }
  }
  return super.getName();
}

代码示例来源：origin: org.netbeans.modules/org-netbeans-modules-web-refactoring

private String getTargetPackageName(FileObject fo){
  String newPackageName = RefactoringUtil.getPackageName(move.getTarget().lookup(URL.class));
  String postfix = FileUtil.getRelativePath(this.folder.getParent(), fo).replace('/', '.');
  if (newPackageName.length() == 0){
    return postfix;
  }
  if (postfix.length() == 0){
    return newPackageName;
  }
  return newPackageName + "." + postfix;
}

代码示例来源：origin: dcaoyuan/nbscala

private static boolean isJ2SEProject(File dir) {
  FileObject projdir = FileUtil.toFileObject(FileUtil.normalizeFile(dir));
  try {
    Project proj = ProjectManager.getDefault().findProject(projdir);
    if (proj != null) {
      // Check if it is a J2SEProject.
      return proj.getLookup().lookup(J2SEProject.class) != null;
    }
  } catch (IOException e) {
    ErrorManager.getDefault().notify(ErrorManager.INFORMATIONAL, e);
  }
  return false;
}

代码示例来源：origin: org.netbeans.modules/org-netbeans-modules-form-refactoring

private void saveFormForUndo() {
  if (!formDataObject.isValid()) {
    // 210787: Refresh formDataObject if it became obsolete
    FileObject fob = formDataObject.getPrimaryFile();
    if (!fob.isValid()) {
      File file = FileUtil.toFile(fob);
      fob = FileUtil.toFileObject(file);
    }
    try {
      formDataObject = (FormDataObject)DataObject.find(fob);
    } catch (DataObjectNotFoundException ex) {
      Exceptions.printStackTrace(ex);
    }
  }
  saveForUndo(formDataObject.getFormFile());
  // java file is backed up by java refactoring
}

代码示例来源：origin: org.netbeans.modules/org-netbeans-modules-php-project

private EditorCookie getEditorCookie(TmpLocalFile tmpFile) throws IOException {
  FileObject fileObject = FileUtil.toFileObject(new File(tmpFile.getAbsolutePath()));
  assert fileObject != null : "Fileobject for tmp local file not found: " + tmpFile;
  DataObject dataObject = DataObject.find(fileObject);
  return dataObject.getLookup().lookup(EditorCookie.class);
}

代码示例来源：origin: org.netbeans.modules/org-netbeans-modules-hudson-ant

public JobCreator(Project project, Configuration config) {
  this.project = project;
  this.config = config;
  this.shar = project.getLookup().lookup(ProjectSharability.class);
  scm = Helper.prepareSCM(FileUtil.toFile(project.getProjectDirectory()));
  checkboxen = initComponents();
}

代码示例来源：origin: org.netbeans.api/org-openide-filesystems

createFolder(fo, name);
} else {
  FileObject fd = createData(fo, name);
  FileLock lock = fd.lock();
    OutputStream os = fd.getOutputStream(lock);
      copy(jis, os);
    } finally {
      os.close();
String prefix = fo.isRoot() ? dirName : (fo.getPath() + '/' + dirName);
  String orig = (String) files.next();
  String fn = prefix + orig;
  FileObject obj = fo.getFileSystem().findResource(fn);

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