panda.io.stream.NullWriter Maven / Gradle / Ivy
package panda.io.stream;
import java.io.Writer;
/**
* This {@link Writer} writes all data to the famous /dev/null.
*
* This Writer has no destination (file/socket etc.) and all characters written to it
* are ignored and lost.
*
*/
public class NullWriter extends Writer {
/**
* A singleton.
*/
public static final NullWriter INSTANCE = new NullWriter();
/**
* Constructs a new NullWriter.
*/
public NullWriter() {
}
/**
* Does nothing - output to /dev/null.
*
* @param c The character to write
* @return this writer
*/
@Override
public Writer append(final char c) {
// to /dev/null
return this;
}
/**
* Does nothing - output to /dev/null.
*
* @param csq The character sequence to write
* @param start The index of the first character to write
* @param end The index of the first character to write (exclusive)
* @return this writer
*/
@Override
public Writer append(final CharSequence csq, final int start, final int end) {
// to /dev/null
return this;
}
/**
* Does nothing - output to /dev/null.
*
* @param csq The character sequence to write
* @return this writer
*/
@Override
public Writer append(final CharSequence csq) {
// to /dev/null
return this;
}
/**
* Does nothing - output to /dev/null.
*
* @param idx The character to write
*/
@Override
public void write(final int idx) {
// to /dev/null
}
/**
* Does nothing - output to /dev/null.
*
* @param chr The characters to write
*/
@Override
public void write(final char[] chr) {
// to /dev/null
}
/**
* Does nothing - output to /dev/null.
*
* @param chr The characters to write
* @param st The start offset
* @param end The number of characters to write
*/
@Override
public void write(final char[] chr, final int st, final int end) {
// to /dev/null
}
/**
* Does nothing - output to /dev/null.
*
* @param str The string to write
*/
@Override
public void write(final String str) {
// to /dev/null
}
/**
* Does nothing - output to /dev/null.
*
* @param str The string to write
* @param st The start offset
* @param end The number of characters to write
*/
@Override
public void write(final String str, final int st, final int end) {
// to /dev/null
}
/** @see java.io.Writer#flush() */
@Override
public void flush() {
// to /dev/null
}
/** @see java.io.Writer#close() */
@Override
public void close() {
// to /dev/null
}
}