net.grinder.util

Class DelayedCreationFileWriter

java.lang.Object

java.io.Writer

net.grinder.util.DelayedCreationFileWriter

All Implemented Interfaces:

Closeable, Flushable, Appendable, AutoCloseable

public final class DelayedCreationFileWriter
extends Writer

FileWriter that doesn't create a file until a write occurs.

Unsynchronised. In practice, each DelayedCreationFileWriter is wrapped in a PrintWriter that provides adequate synchronisation.

Author:

Philip Aston

Field Summary

Fields inherited from class java.io.Writer

lock

Constructor Summary

Constructors

Constructor and Description
DelayedCreationFileWriter(File file, boolean append) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
void	close() Close the file.
void	flush() Flush the file.
void	write(char[] bytes, int offset, int length) Write many bytes to the file.

Methods inherited from class java.io.Writer

append, append, append, write, write, write, write

Methods inherited from class java.lang.Object

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

Constructor Detail

DelayedCreationFileWriter

public DelayedCreationFileWriter(File file,
                         boolean append)

Constructor.

Parameters:

file - The file.

append - Whether to append to the file, or overwrite.

Method Detail

close

public void close()
           throws IOException

Close the file.

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Specified by:

close in class Writer

Throws:

IOException - If an error occurs.

flush

public void flush()
           throws IOException

Flush the file.

Specified by:

flush in interface Flushable

Specified by:

flush in class Writer

Throws:

IOException - If an error occurs.

write

public void write(char[] bytes,
         int offset,
         int length)
           throws IOException

Write many bytes to the file.

Specified by:

write in class Writer

Parameters:

bytes - Byte array.

offset - Offset into bytes.

length - How many bytes to write.

Throws:

IOException - If an error occurs.