Package org.apache.catalina.util

Class IOTools

  • public class IOTools
extends java.lang.Object
    Contains commonly needed I/O-related methods
    Author:
    Dan Sandberg

    • Field Summary

      Fields 
      Modifier and Type Field Description
      protected static int DEFAULT_BUFFER_SIZE  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static void flow​(java.io.InputStream is, java.io.OutputStream os)
      Read input from input stream and write it to output stream until there is no more input from input stream using a new buffer of the default size (4kB).
      static void flow​(java.io.Reader reader, java.io.Writer writer)
      Read input from reader and write it to writer until there is no more input from reader.
      static void flow​(java.io.Reader reader, java.io.Writer writer, char[] buf)
      Read input from reader and write it to writer until there is no more input from reader.
      static int readFully​(java.io.InputStream is, byte[] buf)
      Read until EOF or the buffer is filled.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Method Detail

      • flow

        public static void flow​(java.io.Reader reader,
                        java.io.Writer writer,
                        char[] buf)
                 throws java.io.IOException
        Read input from reader and write it to writer until there is no more input from reader.
        Parameters:
        reader - the reader to read from.
        writer - the writer to write to.
        buf - the char array to use as a buffer
        Throws:
        java.io.IOException - IO error

      • flow

        public static void flow​(java.io.Reader reader,
                        java.io.Writer writer)
                 throws java.io.IOException
        Read input from reader and write it to writer until there is no more input from reader.
        Parameters:
        reader - the reader to read from.
        writer - the writer to write to.
        Throws:
        java.io.IOException - IO error
        See Also:
        flow( Reader, Writer, char[] )

      • flow

        public static void flow​(java.io.InputStream is,
                        java.io.OutputStream os)
                 throws java.io.IOException
        Read input from input stream and write it to output stream until there is no more input from input stream using a new buffer of the default size (4kB).
        Parameters:
        is - input stream the input stream to read from.
        os - output stream the output stream to write to.
        Throws:
        java.io.IOException - If an I/O error occurs during the copy

      • readFully

        public static int readFully​(java.io.InputStream is,
                            byte[] buf)
                     throws java.io.IOException
        Read until EOF or the buffer is filled.
        Parameters:
        is - The source to read from
        buf - The buffer to write to
        Returns:
        The number of bytes read
        Throws:
        java.io.IOException - If an I/O error occurs during the read