Class NullOutputStream
- java.lang.Object
-
- java.io.OutputStream
-
- org.apache.logging.log4j.core.util.NullOutputStream
-
- All Implemented Interfaces:
Closeable
,Flushable
,AutoCloseable
public class NullOutputStream extends OutputStream
Writes all data to the famous /dev/null.This output stream has no destination (file/socket etc.) and all bytes written to it are ignored and lost.
Originally from Apache Commons IO.- Since:
- 2.3
-
-
Field Summary
Fields Modifier and Type Field Description static NullOutputStream
NULL_OUTPUT_STREAM
Deprecated.Deprecated in 2.7: usegetInstance()
.
-
Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description static NullOutputStream
getInstance()
Gets the singleton instance.void
write(byte[] b)
Does nothing - output to/dev/null
.void
write(byte[] b, int off, int len)
Does nothing - output to/dev/null
.void
write(int b)
Does nothing - output to/dev/null
.-
Methods inherited from class java.io.OutputStream
close, flush, nullOutputStream
-
-
-
-
Field Detail
-
NULL_OUTPUT_STREAM
@Deprecated public static final NullOutputStream NULL_OUTPUT_STREAM
Deprecated.Deprecated in 2.7: usegetInstance()
.
-
-
Method Detail
-
getInstance
public static NullOutputStream getInstance()
Gets the singleton instance.- Returns:
- the singleton instance.
-
write
public void write(byte[] b, int off, int len)
Does nothing - output to/dev/null
.- Overrides:
write
in classOutputStream
- Parameters:
b
- The bytes to writeoff
- The start offsetlen
- The number of bytes to write
-
write
public void write(int b)
Does nothing - output to/dev/null
.- Specified by:
write
in classOutputStream
- Parameters:
b
- The byte to write
-
write
public void write(byte[] b) throws IOException
Does nothing - output to/dev/null
.- Overrides:
write
in classOutputStream
- Parameters:
b
- The bytes to write- Throws:
IOException
- never
-
-