public class LineReader extends Object implements AutoCloseable
\n, linefeeds
\r are ignored.
This is a rather minimal implementation, which supposedly pays off in
performance. In particular, this class allows recycling the buffer, which
will yield less object allocations and thus less garbage collection.
Usage example:
StringBuilder buf = new StringBuilder();
LineReader reader = new LineReader(inputStream);
// Clear buffer, and append next line.
while(reader.readLine(buf.delete(0, buf.length()))) {
// process string in buffer.
}
| Modifier and Type | Field and Description |
|---|---|
(package private) char[] |
buffer
Character buffer
|
(package private) static int |
BUFFER_SIZE
Buffer size to use
|
(package private) int |
end
Current position, and length of buffer
|
(package private) Reader |
in
Input stream to read from
|
(package private) int |
pos
Current position, and length of buffer
|
| Constructor and Description |
|---|
LineReader(InputStream in)
Constructor
|
LineReader(Reader in)
Constructor
|
| Modifier and Type | Method and Description |
|---|---|
void |
close() |
boolean |
readLine(Appendable buf)
Read a line into the given buffer.
|
static final int BUFFER_SIZE
Reader in
char[] buffer
int pos
int end
public LineReader(InputStream in)
in - Streampublic LineReader(Reader in)
in - Readerpublic boolean readLine(Appendable buf) throws IOException
buf - Buffer.true if some characters have been read.IOExceptionpublic void close()
throws IOException
close in interface AutoCloseableIOExceptionCopyright © 2015 ELKI Development Team, Lehr- und Forschungseinheit für Datenbanksysteme, Ludwig-Maximilians-Universität München. License information.