com.h3c.util

Class FileUtils

java.lang.Object

com.h3c.util.FileUtils

public final class FileUtils
extends Object

Miscellaneous utilities for manipulating files.

Constructor Summary

Constructors

Constructor and Description
FileUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static String[]	getResourceListing(Class<?> clazz, String path) List directory contents for a resource folder.
static String	read(String file) Consume the content of the specified text file and return it as a string.
static void	replaceERE(String file, String ere, String replacement) Utility to replace a given ERE in the specified file with a replacement string.
static boolean	replaceFile(String file, String toFile) Safely moves one file over another.
static void	write(InputStream fileStream, File file) Write the given input stream of data to the specified file
static void	write(String file, String data) Write the given data into the specified text file.

Methods inherited from class java.lang.Object

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

Constructor Detail

FileUtils

public FileUtils()

Method Detail

replaceERE

public static void replaceERE(String file,
              String ere,
              String replacement)
                       throws IOException

Utility to replace a given ERE in the specified file with a replacement string.

Parameters:

file - file to search and replace patterns within

ere - extended regular expression to be replaced

replacement - replacement string

Throws:

IOException - if issues encountered while reading original or writing replacement

replaceFile

public static boolean replaceFile(String file,
                  String toFile)

Safely moves one file over another.

Parameters:

file - source file

toFile - target file to which the source file should be moved

Returns:

true if the replacement succeeded; false otherwise

read

public static String read(String file)
                   throws IOException

Consume the content of the specified text file and return it as a string.

Parameters:

file - file path of the file to be read

Returns:

string containing file content

Throws:

IOException - if issues encountered while reading file

write

public static void write(String file,
         String data)
                  throws IOException

Write the given data into the specified text file.

Parameters:

file - file path of the file to be written

data - to be written

Throws:

IOException - if issues encountered while reading file

write

public static void write(InputStream fileStream,
         File file)
                  throws IOException

Write the given input stream of data to the specified file

Parameters:

fileStream - the input stream containing the data to be written

file - The file to be written to

Throws:

IOException - if issues encountered while writing the file

getResourceListing

public static String[] getResourceListing(Class<?> clazz,
                          String path)
                                   throws URISyntaxException,
                                          IOException

List directory contents for a resource folder. Not recursive. This is basically a brute-force implementation. Works for regular files and also JARs. Based on code authored by Greg Briggs.

Parameters:

clazz - Any java class that lives in the same place as the resources you want.

path - Should end with "/", but not start with one.

Returns:

Just the name of each member item, not the full paths.

Throws:

URISyntaxException - if the given path forms bad URL

IOException - if issues arise reading the requested resource

IllegalArgumentException - if path starts with a slash