Package org.identityconnectors.common

Class IOUtil

java.lang.Object
org.identityconnectors.common.IOUtil
public class IOUtil extends Object
IO Utilities

  • Field Details

  • Method Details

    • quietClose

      public static void quietClose(Reader reader)
      Quietly closes the reader. This avoids having to handle exceptions, and then inside of the exception handling have a try catch block to close the reader and catch any IOException which may be thrown and ignore it.
      Parameters:
      reader - - Reader to close

    • quietClose

      public static void quietClose(InputStream stream)
      Quietly closes the stream. This avoids having to handle exceptions, and then inside of the exception handling have a try catch block to close the stream and catch any IOException which may be thrown.
      Parameters:
      stream - - Stream to close

    • quietClose

      public static void quietClose(Writer writer)
      Quietly closes the Writer. This avoids having to handle exceptions, and then inside of the exception handling have a try catch block to close the Writer and catch any ioexceptions which may be thrown.
      Parameters:
      writer - - Writer to close

    • quietClose

      public static void quietClose(OutputStream stream)
      Quietly closes the stream. This avoids having to handle exceptions, and then inside of the exception handling have a try catch block to close the stream and catch any ioexceptions which may be thrown.
      Parameters:
      stream - - Stream to close

    • getResourcePath

      public static String getResourcePath(Class<?> c, String res)
      Get the path to a resource base on the package of given class.
      Parameters:
      c - Class to get the package path too.
      res - Name of the resource to get the path of.
      Returns:
      Returns the fully quilified path to a resource.

    • getResourceAsStream

      public static InputStream getResourceAsStream(Class<?> clazz, String res)
      Returns an input stream of the resource specified.
      Returns:
      Returns an InputStream to the resource.

    • getResourceAsBytes

      public static byte[] getResourceAsBytes(Class<?> clazz, String res)
      Get the resource as a byte array.

    • getResourceAsString

      public static String getResourceAsString(Class<?> clazz, String res, Charset charset)
      Read the entire stream into a String and return it.

    • getResourceAsString

      public static String getResourceAsString(Class<?> clazz, String res)
      Read the entire stream into a String and return it.

    • inputStreamToBytes

      public static byte[] inputStreamToBytes(InputStream ins)
      Takes a 'InputStream' and returns a byte array.

    • readerToString

      public static String readerToString(Reader rdr)
      Takes a 'Reader' and returns the contents as a string.
      Parameters:
      rdr - Producer for the string data.
      Returns:
      Null if the 'Reader' is broken or empty otherwise the contents as a string.

    • copyFile

      public static boolean copyFile(File src, File dest) throws IOException
      Copies a file to a destination.
      Parameters:
      src - The source must be a file
      dest - This can be a directory or a file.
      Returns:
      True if succeeded otherwise false.
      Throws:
      IOException

    • copyFile

      public static long copyFile(InputStream fis, OutputStream fos) throws IOException
      Copies one file to another.

      NOTE: does not close streams.

      Returns:
      total bytes copied.
      Throws:
      IOException

    • checksum

      public static long checksum(String fileName) throws IOException, FileNotFoundException
      Calculates the CRC32 checksum of the specified file.
      Parameters:
      fileName - - the path to the file on which to calculate the checksum
      Throws:
      IOException
      FileNotFoundException

    • checksum

      public static long checksum(File file) throws IOException, FileNotFoundException
      Throws:
      IOException
      FileNotFoundException

    • readInputStreamBytes

      public static byte[] readInputStreamBytes(InputStream is, boolean close) throws IOException
      Reads an entire file and returns the bytes.
      Parameters:
      close - if true, close when finished reading.
      Returns:
      file bytes.
      Throws:
      IOException

    • delete

      public static void delete(File f) throws IOException
      Recursively delete all the files in a directory and the directory.
      Throws:
      RuntimeException - iff there is file that can not be deleted.
      IOException

    • loadPropertiesFile

      public static Properties loadPropertiesFile(File f) throws IOException
      Loads the given file as a Properties file.
      Throws:
      IOException

    • storePropertiesFile

      public static void storePropertiesFile(File f, Properties properties) throws IOException
      Stores the given file as a Properties file.
      Throws:
      IOException

    • getResourceAsProperties

      public static Properties getResourceAsProperties(ClassLoader loader, String path) throws IOException
      Loads the given resource as a properties object.
      Parameters:
      loader - The class loader
      path - The path to the resource
      Returns:
      The properties or null if not found
      Throws:
      IOException - If an error occurs reading it

    • extractResourceToFile

      public static void extractResourceToFile(Class<?> clazz, String path, File file) throws IOException
      Extracts the resource to a file.
      Parameters:
      clazz - The class, relative to which path is resolved
      path - The path to the resource
      file - The file to extract to
      Throws:
      IOException - If an error occurs reading it

    • unjar

      public static void unjar(JarFile jarFile, File toDir) throws IOException
      Unjars the given file to the given directory. Does not close the JarFile when finished.
      Parameters:
      jarFile - The file to unjar.
      toDir - The directory to unjar to.
      Throws:
      IOException

    • readFileUTF8

      public static String readFileUTF8(File file) throws IOException
      Reads the given file as UTF-8
      Parameters:
      file - The file to read
      Returns:
      The contents of the file
      Throws:
      IOException - iff there is an issue reading the file.

    • readFileBytes

      public static byte[] readFileBytes(File file) throws IOException
      Reads the given file as bytes
      Parameters:
      file - The file to read
      Returns:
      The contents of the file
      Throws:
      IOException - iff there is an issue reading the file.

    • writeFileUTF8

      public static void writeFileUTF8(File file, String contents) throws IOException
      Write the contents of the string out to a file in UTF-8 format.
      Parameters:
      file - the file to write to.
      contents - the contents of the file to write to.
      Throws:
      IOException - iff there is an issue writing the file.
      NullPointerException - iff the file parameter is null.

    • makeURL

      public static URL makeURL(File dir, String path) throws IOException
      Make a URL from a directory and path.
      Parameters:
      dir - directory to start from.
      path - file or path to create the url.
      Returns:
      URL based on the parameter provided.
      Throws:
      IOException - iff the URL create from the parameters does not specify a file.

    • loadPropertiesFile

      public static Properties loadPropertiesFile(String string) throws IOException
      Attempt to load file based on a string base filename.
      Parameters:
      string - represents the file.
      Returns:
      a loaded properties file.
      Throws:
      IOException - if there is an issue.