Package net.i2p.addressbook

Class ConfigParser

java.lang.Object

net.i2p.addressbook.ConfigParser

class ConfigParser
extends Object

Utility class providing methods to parse and write files in config file format, and subscription file format. TODO: switch to the DataHelper loadProps/storeProps methods?

Author:

Ragnarok

Constructor Summary

Constructors

Constructor	Description
ConfigParser()

Method Summary

Modifier and Type	Method	Description
static Map<String,String>	parse(File file)	Return a Map using the contents of the File file.
static Map<String,String>	parse(File file, Map<String,String> map)	Return a Map using the contents of the File file.
static List<String>	parseSubscriptions(File file, List<String> list)	Return a List using the contents of the File file.
static String	stripComments(String inputLine)	Strip the comments from a String.
static void	write(Map<String,String> map, File file)	Write contents of Map map to the File file.

Methods inherited from class java.lang.Object

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

Constructor Detail

ConfigParser

ConfigParser()

Method Detail

stripComments

public static String stripComments(String inputLine)

Strip the comments from a String. Lines that begin with '#' and ';' are considered comments, as well as any part of a line after a '#'.

Parameters:

inputLine - A String to strip comments from.

Returns:

A String without comments, but otherwise identical to inputLine.

parse

public static Map<String,String> parse(File file)
                                      throws IOException

Return a Map using the contents of the File file. See parseBufferedReader for details of the input format.

Parameters:

file - A File to parse.

Returns:

A Map containing the key, value pairs from file.

Throws:

IOException - if file cannot be read.

parse

public static Map<String,String> parse(File file,
                                             Map<String,String> map)

Return a Map using the contents of the File file. If file cannot be read, use map instead, and write the result to where file should have been.

Parameters:

file - A File to attempt to parse.

map - A Map containing values to use as defaults.

Returns:

A Map containing the key, value pairs from file, or if file cannot be read, map.

parseSubscriptions

public static List<String> parseSubscriptions(File file,
                                              List<String> list)

Return a List using the contents of the File file. If file cannot be read, use list instead, and write the result to where file should have been.

Parameters:

file - A File to attempt to parse.

list - The default subscriptions to be saved and returned if the file cannot be read

Returns:

A List consisting of one element for each line in file, or if file cannot be read, list.

write

public static void write(Map<String,String> map,
                         File file)
                  throws IOException

Write contents of Map map to the File file. Output is written with one key, value pair on each line, in the format: key=value. Write to a temp file in the same directory and then rename, to not corrupt simultaneous accesses by the router. Except on Windows where renameTo() will fail if the target exists.

Parameters:

map - A Map to write to file.

file - A File to write the Map to.

Throws:

IOException - if file cannot be written to.