Package com.itextpdf.commons.utils

Class FileUtil

java.lang.Object
com.itextpdf.commons.utils.FileUtil
public final class FileUtil extends Object
This file is a helper class for internal usage only. Be aware that its API and functionality may be changed in future.

  • Method Details

    • getFontsDir

      public static String getFontsDir()
      Gets the default windows font directory.
      Returns:
      the default windows font directory

    • fileExists

      public static boolean fileExists (String path)
      Checks whether there is a file at the provided path.
      Parameters:
      path - the path to the file to be checked on existence
      Returns:
      true if such a file exists, otherwise false

    • isFileNotEmpty

      public static boolean isFileNotEmpty (String path)
      Checks whether is provided file not empty.
      Parameters:
      path - the path to the file to be checked on emptiness
      Returns:
      true if such file is not empty, false otherwise

    • directoryExists

      public static boolean directoryExists (String path)
      Checks whether there is a directory at the provided path.
      Parameters:
      path - the path to the directory to be checked on existence
      Returns:
      true if such a directory exists, otherwise false

    • listFilesInDirectory

      public static String[] listFilesInDirectory (String path, boolean recursive)
      Lists all the files located at the provided directory.
      Parameters:
      path - path to the directory
      recursive - if true, files from all the subdirectories will be returned
      Returns:
      all the files located at the provided directory

    • listFilesInDirectoryByFilter

      public static File[] listFilesInDirectoryByFilter (String outPath, FileFilter fileFilter)
      Lists all the files located at the provided directory, which are accepted by the provided filter.
      Parameters:
      outPath - path to the directory
      fileFilter - filter to accept files to be listed
      Returns:
      all the files located at the provided directory, which are accepted by the provided filter

    • createPrintWriter

      public static PrintWriter createPrintWriter (OutputStream output, String encoding) throws UnsupportedEncodingException
      Creates PrintWriter instance.
      Parameters:
      output - output stream where data will be written.
      encoding - encoding in which data will be written.
      Returns:
      PrintWriter instance.
      Throws:
      UnsupportedEncodingException - in case of unknown encoding.

    • getBufferedOutputStream

      public static OutputStream getBufferedOutputStream (String filename) throws IOException
      Creates OutputStream instance for filename.
      Parameters:
      filename - name of the file for which output stream will be created.
      Returns:
      OutputStream instance.
      Throws:
      FileNotFoundException - if file not found.
      IOException

    • wrapWithBufferedOutputStream

      public static OutputStream wrapWithBufferedOutputStream (OutputStream outputStream)
      Wraps provided output stream with buffered one.
      Parameters:
      outputStream - output stream to wrap.
      Returns:
      BufferedOutputStream instance if provided stream was not buffered before.

    • constructFileByDirectoryAndName

      public static File constructFileByDirectoryAndName (String directory, String fileName)
      Create File instance.
      Parameters:
      directory - the parent pathname string.
      fileName - The child pathname string.
      Returns:
      File instance.

    • createTempFile

      public static File createTempFile (String path) throws IOException
      Creates a temporary file at the provided path.
      Parameters:
      path - path to the temporary file to be created. If it is a directory, then the temporary file will be created at this directory
      Returns:
      the created temporary file
      Throws:
      IOException - signals that an I/O exception has occurred

    • getFileOutputStream

      public static OutputStream getFileOutputStream (File tempFile) throws IOException
      Creates FileOutputStream instance.
      Parameters:
      tempFile - filename for which output stream will be created.
      Returns:
      FileOutputStream instance.
      Throws:
      IOException - in file reading errors.

    • getInputStreamForFile

      public static InputStream getInputStreamForFile (String path) throws IOException
      Creates InputStream instance.
      Parameters:
      path - filename for which output stream will be created.
      Returns:
      InputStream instance.
      Throws:
      IOException - in file reading errors.

    • getInputStreamForFile

      public static InputStream getInputStreamForFile (File file) throws IOException
      Creates InputStream instance.
      Parameters:
      file - filename for which output stream will be created.
      Returns:
      InputStream instance.
      Throws:
      IOException - in file reading errors.

    • getFileOutputStream

      public static OutputStream getFileOutputStream (String path) throws IOException
      Creates OutputStream instance.
      Parameters:
      path - filename for which output stream will be created.
      Returns:
      OutputStream instance.
      Throws:
      IOException - in file r/w errors.

    • getRandomAccessFile

      public static RandomAccessFile getRandomAccessFile (File tempFile) throws FileNotFoundException
      Creates RandomAccessFile instance.
      Parameters:
      tempFile - file for which RAF will be created.
      Returns:
      RandomAccessFile instance.
      Throws:
      FileNotFoundException - in case file not found.

    • createDirectories

      public static void createDirectories (String outPath)
      Creates a directory at the provided path.
      Parameters:
      outPath - path to the directory to be created

    • getParentDirectoryUri

      public static String getParentDirectoryUri (File file) throws MalformedURLException
      Returns an URI of the parent directory for the resource.
      Parameters:
      file - for which an URI of the parent will be constructed.
      Returns:
      parent directory URI.
      Throws:
      MalformedURLException - If a protocol handler for the URL could not be found, or if some other error occurred while constructing the URL.

    • deleteFile

      public static boolean deleteFile (File file)
      Deletes a file and returns whether the operation succeeded. Note that only *files* are supported, not directories.
      Parameters:
      file - file to be deleted
      Returns:
      true if file was deleted successfully, false otherwise

    • parentDirectory

      public static String parentDirectory (URL url) throws URISyntaxException
      Returns an URL of the parent directory for the resource.
      Parameters:
      url - of resource
      Returns:
      parent directory path| the same path if a catalog`s url is passed;
      Throws:
      URISyntaxException - if this URL is not formatted strictly according to RFC2396 and cannot be converted to a URI.

    • createTempFile

      public static File createTempFile (String tempFilePrefix, String tempFilePostfix) throws IOException
      Creates a temporary file.

      Note, that this method creates temporary file with provided file's prefix and postfix using File.createTempFile(String, String).

      Parameters:
      tempFilePrefix - the prefix of the copied file's name
      tempFilePostfix - the postfix of the copied file's name
      Returns:
      the path to the copied file
      Throws:
      IOException - signals that an I/O exception has occurred.

    • createTempCopy

      public static String createTempCopy (String file, String tempFilePrefix, String tempFilePostfix) throws IOException
      Creates a temporary copy of a file.

      Note, that this method creates temporary file with provided file's prefix and postfix using Files.createTempFile(String, String, FileAttribute[]).

      Parameters:
      file - the path to the file to be copied
      tempFilePrefix - the prefix of the copied file's name
      tempFilePostfix - the postfix of the copied file's name
      Returns:
      the path to the copied file
      Throws:
      IOException - signals that an I/O exception has occurred.

    • copy

      public static void copy (String inputFile, String outputFile) throws IOException
      Creates a copy of a file.
      Parameters:
      inputFile - the path to the file to be copied
      outputFile - the path, to which the passed file should be copied
      Throws:
      IOException - signals that an I/O exception has occurred.

    • createTempDirectory

      public static String createTempDirectory (String tempFilePrefix) throws IOException
      Creates a temporary directory.

      Note, that this method creates temporary directory with provided directory prefix using Files.createTempDirectory(String, FileAttribute[]).

      Parameters:
      tempFilePrefix - the prefix of the temporary directory's name
      Returns:
      the path to the temporary directory
      Throws:
      IOException - signals that an I/O exception has occurred.

    • removeFiles

      public static boolean removeFiles (String[] paths)
      Removes all of the passed files.
      Parameters:
      paths - paths to files, which should be removed
      Returns:
      true if all the files have been successfully removed, false otherwise