## org.eclipse.jetty.util
Class IO

    java.lang.Object
      org.eclipse.jetty.util.IO

    public class IO

extends java.lang.Object

IO Utilities. Provides stream handling utilities in singleton Threadpool implementation accessed by static members.

Field Summary
`static int` `bufferSize`
`static java.lang.String` `CRLF`
`static byte[]` `CRLF_BYTES`

Constructor Summary
`IO()`

Method Summary
`static void` `close(java.io.InputStream is)` closes an input stream, and logs exceptions
`static void` `close(java.io.OutputStream os)` closes an output stream, and logs exceptions
`static void` `close(java.io.Reader reader)` closes a reader, and logs exceptions
`static void` `close(java.io.Writer writer)` closes a writer, and logs exceptions
`static void` `copy(java.io.File from, java.io.File to)` Copy files or directories
`static void` `copy(java.io.InputStream in, java.io.OutputStream out)` Copy Stream in to Stream out until EOF or exception.
`static void` `copy(java.io.InputStream in, java.io.OutputStream out, long byteCount)` Copy Stream in to Stream for byteCount bytes or until EOF or exception.
`static void` `copy(java.io.Reader in, java.io.Writer out)` Copy Reader to Writer out until EOF or exception.
`static void` `copy(java.io.Reader in, java.io.Writer out, long byteCount)` Copy Reader to Writer for byteCount bytes or until EOF or exception.
`static void` `copyDir(java.io.File from, java.io.File to)`
`static void` `copyFile(java.io.File from, java.io.File to)`
`static void` `copyThread(java.io.InputStream in, java.io.OutputStream out)` Copy Stream in to Stream out until EOF or exception.
`static void` `copyThread(java.io.Reader in, java.io.Writer out)` Copy Stream in to Stream out until EOF or exception in own thread
`static boolean` `delete(java.io.File file)` Delete File.
`static java.io.InputStream` `getClosedStream()`
`static java.io.PrintWriter` `getNullPrintWriter()`
`static java.io.OutputStream` `getNullStream()`
`static java.io.Writer` `getNullWriter()`
`static byte[]` `readBytes(java.io.InputStream in)`
`static java.lang.String` `toString(java.io.InputStream in)` Read input stream to string.
`static java.lang.String` `toString(java.io.InputStream in, java.lang.String encoding)` Read input stream to string.
`static java.lang.String` `toString(java.io.Reader in)` Read input stream to string.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### CRLF

    public static final java.lang.String CRLF

See Also:
  Constant Field Values

### CRLF_BYTES

    public static final byte[] CRLF_BYTES

### bufferSize

    public static int bufferSize

Constructor Detail

### IO

    public IO()

Method Detail

### copyThread

    public static void copyThread(java.io.InputStream in,
                                  java.io.OutputStream out)

  Copy Stream in to Stream out until EOF or exception. in own thread

### copy

    public static void copy(java.io.InputStream in,
                            java.io.OutputStream out)
                     throws java.io.IOException

  Copy Stream in to Stream out until EOF or exception.

  Throws:
    `java.io.IOException`

### copyThread

    public static void copyThread(java.io.Reader in,
                                  java.io.Writer out)

  Copy Stream in to Stream out until EOF or exception in own thread

### copy

    public static void copy(java.io.Reader in,
                            java.io.Writer out)
                     throws java.io.IOException

  Copy Reader to Writer out until EOF or exception.

  Throws:
    `java.io.IOException`

### copy

    public static void copy(java.io.InputStream in,
                            java.io.OutputStream out,
                            long byteCount)
                     throws java.io.IOException

  Copy Stream in to Stream for byteCount bytes or until EOF or exception.

  Throws:
    `java.io.IOException`

### copy

    public static void copy(java.io.Reader in,
                            java.io.Writer out,
                            long byteCount)
                     throws java.io.IOException

  Copy Reader to Writer for byteCount bytes or until EOF or exception.

  Throws:
    `java.io.IOException`

### copy

    public static void copy(java.io.File from,
                            java.io.File to)
                     throws java.io.IOException

  Copy files or directories

  Parameters:
    `from` -
    `to` -
  Throws:
    `java.io.IOException`

### copyDir

    public static void copyDir(java.io.File from,
                               java.io.File to)
                        throws java.io.IOException

  Throws:
    `java.io.IOException`

### copyFile

    public static void copyFile(java.io.File from,
                                java.io.File to)
                         throws java.io.IOException

  Throws:
    `java.io.IOException`

### toString

    public static java.lang.String toString(java.io.InputStream in)
                                     throws java.io.IOException

  Read input stream to string.

  Throws:
    `java.io.IOException`

### toString

    public static java.lang.String toString(java.io.InputStream in,
                                            java.lang.String encoding)
                                     throws java.io.IOException

  Read input stream to string.

  Throws:
    `java.io.IOException`

### toString

    public static java.lang.String toString(java.io.Reader in)
                                     throws java.io.IOException

  Read input stream to string.

  Throws:
    `java.io.IOException`

### delete

    public static boolean delete(java.io.File file)

  Delete File. This delete will recursively delete directories - BE CAREFULL

  Parameters:
    `file` - The file to be deleted.

### close

    public static void close(java.io.InputStream is)

  closes an input stream, and logs exceptions

  Parameters:
    `is` - the input stream to close

### close

    public static void close(java.io.Reader reader)

  closes a reader, and logs exceptions

  Parameters:
    `reader` - the reader to close

### close

    public static void close(java.io.Writer writer)

  closes a writer, and logs exceptions

  Parameters:
    `writer` - the writer to close

### readBytes

    public static byte[] readBytes(java.io.InputStream in)
                            throws java.io.IOException

  Throws:
    `java.io.IOException`

### close

    public static void close(java.io.OutputStream os)

  closes an output stream, and logs exceptions

  Parameters:
    `os` - the output stream to close

### getNullStream

    public static java.io.OutputStream getNullStream()

  Returns:
    An outputstream to nowhere

### getClosedStream

    public static java.io.InputStream getClosedStream()

  Returns:
    An outputstream to nowhere

### getNullWriter

    public static java.io.Writer getNullWriter()

  Returns:
    An writer to nowhere

### getNullPrintWriter

    public static java.io.PrintWriter getNullPrintWriter()

  Returns:
    An writer to nowhere

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