NpsFile class

File object, which can be applied to read&write local files.

Note: it can only read&write files which are under the root path of current website.

Property Summary

Method Summary

NpsFile	new(String filename) Return to NpsFile object whose filename is designated filename will be automatically mapped to the root path of currently in-use website. For example: the root path of current website is “c:\web”, then in case of the following situation: 1.filename=c:\web\logs\mylog.txt 2.filename=c:\logs\mylog.txt 3.filename=/logs/mylog.txt the final result will point to “c:\web\logs\mylog.txt” files.
boolean	IsFile() Whether it is file or not. If it is file, it will return to True, otherwise, it will return to false.
boolean	IsDirectory() Whether it is directory or not. If it is directory, it will return to True, otherwise, it will return to false.
boolean	Exists() Tests whether the file or directory denoted by this abstract pathname exists.
int	Length() The file’s size. If file doesn’t exist, it will return to 0.
boolean	Mkdir() Creates the directory named by this abstract pathname.
boolean	Mkdirs() Creates the directory named by this abstract pathname, including any necessary but nonexistent parent directories.
boolean	Rename(String fname) Renames the file denoted by this abstract pathname.
void	CopyTo(NpsFile new_file) If new_file is directory, copy this file to it; else rewrite the new_file.
boolean	Delete() throws Exception Deletes the file or directory denoted by this abstract pathname.
void	OpenReader() throws Exception Open file then enter read mode.You must call CloseReader() or Close() to close reader.
int	Read() throws Exception Read a char. If it reach the stream tail, it will return to -1.
String	ReadLine() throws Exception Read one text line. Certain line is terminated if following characters appear: change line “('\n')”, enter “('\r')”, or change line right after enter. If it reach the stream tail, it will return to “null”.
void	CloseReader() Close Reader。
void	Reset() throws Exception Reset Reader and Writer.
void	OpenWriter(boolean append) throws Exception Open file then enter read-in mode. set true for append mode.
void	Write(int c) throws Exception Write a char.
void	WriteString(String s) throws Exception Write a string.
void	CloseWriter() Close Writer.
void	Close() Close Reader and Writer simultaneously.

String	name Returns the name of the file or directory denoted by this abstract pathname.
String	path Return this abstract pathname.
String	absolutepath Returns the absolute pathname string of this abstract pathname.