cat.lump.aq.textextraction.wikipedia.io

Class FileManager

java.lang.Object

cat.lump.aq.textextraction.wikipedia.io.FileManager

public class FileManager
extends java.lang.Object

This class provides a set of methods to manage files which stores preprocessed Wikipedia pages.

Author:

jboldoba TODO system dependent notation /

Constructor Summary

Constructors

Constructor and Description
FileManager()

Method Summary

Methods

Modifier and Type	Method and Description
static boolean	existsFile(java.io.File root, TypePreprocess type, java.lang.String language, int pageID) Checks if a file related to a page exists on the given root directory.
static java.io.File	getFile(java.io.File root, java.lang.String language, int pageID) Creates the abstract path for a given page considering its ID and language The path will be constructed as follows: root/language/index/filename.txt where index is the result of dividing pageID by and filename is formed by concatenating the pageID and language, separated by dots.
static java.io.File	getFile(java.io.File root, TypePreprocess type, java.lang.String language, int pageID) Creates the abstract path for a given page considering its ID, language and the type of preprocess.
static java.util.Set<java.lang.String>	getFilenames(java.io.File directory, java.lang.String language, boolean recursive) Retrieve the name of the preprocessed files in a language from the given directory.
static java.lang.String	loadFile(java.io.File root, TypePreprocess type, java.lang.String language, int pageID) Loads the file related to the given parameters in text format.
static void	main(java.lang.String[] args) Example to get files with filename filter
static java.io.File	savePage(java.io.File root, TypePreprocess type, java.lang.String language, int pageID, java.lang.StringBuffer text) Saves the text contained in the buffer in the correct file considering the page ID, language and type of preprocess.

Methods inherited from class java.lang.Object

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

Constructor Detail

FileManager

public FileManager()

Method Detail

getFile

public static java.io.File getFile(java.io.File root,
                   TypePreprocess type,
                   java.lang.String language,
                   int pageID)

Creates the abstract path for a given page considering its ID, language and the type of preprocess.

The path will be constructed as follows: root/type/language/index/filename.txt where index is the result of dividing pageID by and filename is formed by concatenating the pageID and language, separated by dots.

Parameters:

root - Root directory.

type - Type of preprocess

language - Language of the page

pageID - Identifier of the page

Returns:

The abstract path for the given parameters.

getFile

public static java.io.File getFile(java.io.File root,
                   java.lang.String language,
                   int pageID)

Creates the abstract path for a given page considering its ID and language

The path will be constructed as follows: root/language/index/filename.txt where index is the result of dividing pageID by and filename is formed by concatenating the pageID and language, separated by dots.

Parameters:

root - Root directory.

language - Language of the page

pageID - Identifier of the page

Returns:

The abstract path for the given parameters.

getFilenames

public static java.util.Set<java.lang.String> getFilenames(java.io.File directory,
                                           java.lang.String language,
                                           boolean recursive)

Retrieve the name of the preprocessed files in a language from the given directory.

Parameters:

directory - Directory wherein are the files

language -

recursive - If true, it will search inside the sub-directories. Otherwise, only the files in the given directory will be retrieved.

Returns:

The set of names of the retrieved files

savePage

public static java.io.File savePage(java.io.File root,
                    TypePreprocess type,
                    java.lang.String language,
                    int pageID,
                    java.lang.StringBuffer text)
                             throws java.io.IOException

Saves the text contained in the buffer in the correct file considering the page ID, language and type of preprocess. The index file of the folder is actualised. If the index directory is created, also the file to keep track of the files is created.

Parameters:

root - Root directory.

type - Type of preprocess

language - Language of the page

pageID - Identifier of the page

text - Buffer which contains the text to write in the file.

Returns:

The saved file

Throws:

java.io.IOException

loadFile

public static java.lang.String loadFile(java.io.File root,
                        TypePreprocess type,
                        java.lang.String language,
                        int pageID)
                                 throws java.io.IOException

Loads the file related to the given parameters in text format.

Parameters:

root - Root directory.

type - Type of preprocess

language - Language of the page

pageID - Identifier of the page

Returns:

The text stored in the file.

Throws:

java.io.IOException

existsFile

public static boolean existsFile(java.io.File root,
                 TypePreprocess type,
                 java.lang.String language,
                 int pageID)

Checks if a file related to a page exists on the given root directory.

Parameters:

root - Root directory.

type - Type of preprocess

language - Language of the page

pageID - Identifier of the page

Returns:

true if the file exists.

main

public static void main(java.lang.String[] args)

Example to get files with filename filter

Parameters:

args -