Package org.apache.tools.ant.util

## Class LineOrientedOutputStream

- java.lang.Object
- - java.io.OutputStream
  - - org.apache.tools.ant.util.LineOrientedOutputStream

All Implemented Interfaces:
  `java.io.Closeable`, `java.io.Flushable`, `java.lang.AutoCloseable`

Direct Known Subclasses:
  `LineOrientedOutputStreamRedirector`, `LogOutputStream`

    public abstract class LineOrientedOutputStream
    extends java.io.OutputStream

Invokes `processLine` whenever a full line has been written to this stream.

Tries to be smart about line separators.

### Constructor Summary

Constructors
`LineOrientedOutputStream()`

### Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
`void` `close()` Writes all remaining
`void` `flush()` Flush this log stream
`protected void` `processBuffer()` Converts the buffer to a byte[] and sends it to `processLine`
`protected void` `processLine​(byte[] line)` Processes a line.
`protected abstract void` `processLine​(java.lang.String line)` Processes a line.
`void` `write​(byte[] b, int off, int len)` Write a block of characters to the output stream
`void` `write​(int cc)` Write the data to the buffer and flush the buffer, if a line separator is detected.

### Methods inherited from class java.io.OutputStream

`nullOutputStream, write`

### Methods inherited from class java.lang.Object

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

### Constructor Detail

#### LineOrientedOutputStream

    public LineOrientedOutputStream()

### Method Detail

#### write

    public final void write​(int cc)
                     throws java.io.IOException

Write the data to the buffer and flush the buffer, if a line separator is detected.

Specified by:
  `write` in class `java.io.OutputStream`
Parameters:
  `cc` - data to log (byte).
Throws:
  `java.io.IOException` - if there is an error.

#### flush

    public void flush()
               throws java.io.IOException

Flush this log stream

Specified by:
  `flush` in interface `java.io.Flushable`
Overrides:
  `flush` in class `java.io.OutputStream`
Throws:
  `java.io.IOException` - if there is an error.

#### processBuffer

    protected void processBuffer()
                          throws java.io.IOException

Converts the buffer to a byte[] and sends it to `processLine`

Throws:
  `java.io.IOException` - if there is an error.

#### processLine

    protected abstract void processLine​(java.lang.String line)
                                 throws java.io.IOException

Processes a line.

Parameters:
  `line` - the line to log.
Throws:
  `java.io.IOException` - if there is an error.

#### processLine

    protected void processLine​(byte[] line)
                        throws java.io.IOException

Processes a line.

This implementations invokes the string-arg version converting the byte array using the default encoding. Subclasses are encouraged to override this method (and provide a dummy implementation of the String-arg version) so they don't interfere with the encoding of the underlying stream.

Parameters:
  `line` - the line to log.
Throws:
  `java.io.IOException` - if there is an error.
Since:
  Ant 1.8.3

#### close

    public void close()
               throws java.io.IOException

Writes all remaining

Specified by:
  `close` in interface `java.lang.AutoCloseable`
Specified by:
  `close` in interface `java.io.Closeable`
Overrides:
  `close` in class `java.io.OutputStream`
Throws:
  `java.io.IOException` - if there is an error.

#### write

    public final void write​(byte[] b,
                            int off,
                            int len)
                     throws java.io.IOException

Write a block of characters to the output stream

Overrides:
  `write` in class `java.io.OutputStream`
Parameters:
  `b` - the array containing the data
  `off` - the offset into the array where data starts
  `len` - the length of block
Throws:
  `java.io.IOException` - if the data cannot be written into the stream.