Java Code Examples for org.apache.commons.vfs2.FileObject#refresh()

The following examples show how to use org.apache.commons.vfs2.FileObject#refresh() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: FTPRemoteDownloadSourceDelegate.java    From datacollector with Apache License 2.0 6 votes vote down vote up 
@Override
public String archive(String fromPath) throws IOException {
  if (archiveURI == null) {
    throw new IOException("No archive directory defined - cannot archive");
  }

  String toPath = archiveURI.toString() + (fromPath.startsWith("/") ? fromPath.substring(1) : fromPath);

  FileObject toFile = VFS.getManager().resolveFile(toPath, archiveOptions);
  toFile.refresh();
  // Create the toPath's parent dir(s) if they don't exist
  toFile.getParent().createFolder();
  resolveChild(fromPath).moveTo(toFile);
  toFile.close();
  return toPath;
}
Example 2
Source File: GoogleDriveFileSystem.java    From hop with Apache License 2.0 5 votes vote down vote up 
private synchronized FileObject processFile( FileName name, boolean useCache ) throws FileSystemException {
  if ( !super.getRootName().getRootURI().equals( name.getRootURI() ) ) {
    throw new FileSystemException( "vfs.provider/mismatched-fs-for-name.error",
        new Object[] { name, super.getRootName(), name.getRootURI() } );
  } else {
    FileObject file;
    if ( useCache ) {
      file = super.getFileFromCache( name );
    } else {
      file = null;
    }

    if ( file == null ) {
      try {
        file = this.createFile( (AbstractFileName) name );
      } catch ( Exception e ) {
        throw new FileSystemException( "Unable to get Google Drive file object for '"+name+"'", e );
      }

      file = super.decorateFileObject( file );
      if ( useCache ) {
        super.putFileToCache( file );
      }
    }

    if ( super.getFileSystemManager().getCacheStrategy().equals( CacheStrategy.ON_RESOLVE ) ) {
      file.refresh();
    }

    return file;
  }
}
Example 3
Source File: LoadingInfo.java    From otroslogviewer with Apache License 2.0 5 votes vote down vote up 
public LoadingInfo(FileObject fileObject, boolean tailing, OpenMode openMode) throws IOException {
  this.fileObject = fileObject;
  this.tailing = tailing;
  friendlyUrl = fileObject.getName().getFriendlyURI();

  fileObject.refresh();
  InputStream inputStream = fileObject.getContent().getInputStream();
  byte[] probe = loadProbe(inputStream, 10000);
  gzipped = checkIfIsGzipped(probe, probe.length);
  inputStreamBufferedStart = gzipped ? ungzip(probe) : probe;

  if (openMode == FROM_START || gzipped) {
    PushbackInputStream pushBackInputStream = new PushbackInputStream(inputStream, probe.length + 1); // +1 to support empty files
    pushBackInputStream.unread(probe);
    observableInputStreamImpl = new ObservableInputStreamImpl(pushBackInputStream);
    contentInputStream = gzipped ? new GZIPInputStream(observableInputStreamImpl) : observableInputStreamImpl;
  } else {
    RandomAccessContent randomAccessContent = fileObject.getContent().getRandomAccessContent(READ);
    randomAccessContent.seek(randomAccessContent.length());
    observableInputStreamImpl = new ObservableInputStreamImpl(randomAccessContent.getInputStream());
    contentInputStream = observableInputStreamImpl;
  }

  if (fileObject.getType().hasContent()) {
    lastFileSize = fileObject.getContent().getSize();
  }
}
Example 4
Source File: AbstractFileSystem.java    From commons-vfs with Apache License 2.0 5 votes vote down vote up 
private synchronized FileObject resolveFile(final FileName name, final boolean useCache)
        throws FileSystemException {
    if (!rootName.getRootURI().equals(name.getRootURI())) {
        throw new FileSystemException("vfs.provider/mismatched-fs-for-name.error", name, rootName,
                name.getRootURI());
    }

    // [email protected] ==> use getFileFromCache
    FileObject file;
    if (useCache) {
        file = getFileFromCache(name);
    } else {
        file = null;
    }

    if (file == null) {
        try {
            file = createFile((AbstractFileName) name);
        } catch (final Exception e) {
            throw new FileSystemException("vfs.provider/resolve-file.error", name, e);
        }

        file = decorateFileObject(file);

        // [email protected] ==> use putFileToCache
        if (useCache) {
            putFileToCache(file);
        }
    }

    /**
     * resync the file information if requested
     */
    if (getFileSystemManager().getCacheStrategy().equals(CacheStrategy.ON_RESOLVE)) {
        file.refresh();
    }
    return file;
}
Example 5
Source File: ProviderCacheStrategyTests.java    From commons-vfs with Apache License 2.0 5 votes vote down vote up 
/**
 * Test the manual cache strategy
 */
public void testManualCache() throws Exception {
    final FileObject scratchFolder = getWriteFolder();
    if (FileObjectUtils.isInstanceOf(getBaseFolder(), RamFileObject.class)
            || scratchFolder.getFileSystem() instanceof VirtualFileSystem) {
        // cant check ram filesystem as every manager holds its own ram filesystem data
        return;
    }

    scratchFolder.delete(Selectors.EXCLUDE_SELF);

    final DefaultFileSystemManager fs = createManager();
    fs.setCacheStrategy(CacheStrategy.MANUAL);
    fs.init();
    final FileObject foBase2 = getBaseTestFolder(fs);

    final FileObject cachedFolder = foBase2.resolveFile(scratchFolder.getName().getPath());

    FileObject[] fos = cachedFolder.getChildren();
    assertContainsNot(fos, "file1.txt");

    scratchFolder.resolveFile("file1.txt").createFile();

    fos = cachedFolder.getChildren();
    assertContainsNot(fos, "file1.txt");

    cachedFolder.refresh();
    fos = cachedFolder.getChildren();
    assertContains(fos, "file1.txt");
}
Example 6
Source File: GoogleDriveFileSystem.java    From pentaho-kettle with Apache License 2.0 5 votes vote down vote up 
private synchronized FileObject processFile( FileName name, boolean useCache ) throws FileSystemException {
  if ( !super.getRootName().getRootURI().equals( name.getRootURI() ) ) {
    throw new FileSystemException( "vfs.provider/mismatched-fs-for-name.error",
        new Object[] { name, super.getRootName(), name.getRootURI() } );
  } else {
    FileObject file;
    if ( useCache ) {
      file = super.getFileFromCache( name );
    } else {
      file = null;
    }

    if ( file == null ) {
      try {
        file = this.createFile( (AbstractFileName) name );
      } catch ( Exception var5 ) {
        return null;
      }

      file = super.decorateFileObject( file );
      if ( useCache ) {
        super.putFileToCache( file );
      }
    }

    if ( super.getFileSystemManager().getCacheStrategy().equals( CacheStrategy.ON_RESOLVE ) ) {
      file.refresh();
    }

    return file;
  }
}