net.semanticmetadata.lire.utils

类 FileUtils

java.lang.Object

net.semanticmetadata.lire.utils.FileUtils

public class FileUtils
extends java.lang.Object

This file is part of the Caliph and Emir project: http://www.SemanticMetadata.net
Date: 04.02.2006
Time: 09:44:49

作者:

Mathias Lux, mathias@juggle.at, sangupta, sandy.pec@gmail.com (closed streams in finally clause), Nektarios Anagnostopoulos, nek.anag@gmail.com

字段概要

字段

限定符和类型	字段和说明
static org.apache.commons.io.filefilter.SuffixFileFilter	fileFilter basic image file filter.

构造器概要

构造器

构造器和说明
FileUtils()

方法概要

限定符和类型	方法和说明
static void	browseUri(java.lang.String uri) Opens a browser windows th
static java.util.ArrayList<java.io.File>	getAllImageFiles(java.io.File directory, boolean descendIntoSubDirectories) Returns all images from a directory in an array of File.
static java.util.ArrayList<java.lang.String>	getAllImages(java.io.File directory, boolean descendIntoSubDirectories) Returns all images from a directory in an array.
static boolean	isImageFileCompatible(java.io.File f) Just opens an image with Java and reports if false if there are problems.
static java.util.ArrayList<java.lang.String>	readFileLines(java.io.File directory, boolean descendIntoSubDirectories)
static byte[]	readFileToByteArray(java.io.File file) Reads a whole file into a StringBuffer based on java.nio
static void	readWholeFile(java.io.File file, java.lang.StringBuilder stringBuilder) Reads a whole file into a StringBuffer based on java.nio
static java.lang.String	saveImageResultsToHtml(java.lang.String prefix, ImageSearchHits hits, java.lang.String queryImage, org.apache.lucene.index.IndexReader reader) Puts results into a HTML file.
static java.lang.String	saveImageResultsToHtml(java.lang.String prefix, org.apache.lucene.search.TopDocs hits, org.apache.lucene.index.IndexReader reader, java.lang.String queryImage) Puts results into a HTML file.
static void	saveImageResultsToPng(java.lang.String prefix, ImageSearchHits hits, java.lang.String queryImage, org.apache.lucene.index.IndexReader reader)
static void	saveImageResultsToPng(java.lang.String prefix, org.apache.lucene.search.TopDocs hits, java.lang.String queryImage, org.apache.lucene.index.IndexReader ir)
static void	zipDirectory(java.io.File directory, java.io.File base, java.util.zip.ZipOutputStream zos)

从类继承的方法 java.lang.Object

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

字段详细资料

fileFilter

public static final org.apache.commons.io.filefilter.SuffixFileFilter fileFilter

basic image file filter.

构造器详细资料

FileUtils

public FileUtils()

方法详细资料

getAllImages

public static java.util.ArrayList<java.lang.String> getAllImages(java.io.File directory,
                                                                 boolean descendIntoSubDirectories)
                                                          throws java.io.IOException

Returns all images from a directory in an array. Image files are identified by their suffix being from {.png, .jpg, .jpeg, .gif} in case insensitive manner.

参数:

directory - the directory to start with

descendIntoSubDirectories - should we include sub directories?

返回:

an ArrayList containing all the files or null if none are found..

抛出:

java.io.IOException

getAllImageFiles

public static java.util.ArrayList<java.io.File> getAllImageFiles(java.io.File directory,
                                                                 boolean descendIntoSubDirectories)
                                                          throws java.io.IOException

Returns all images from a directory in an array of File. Image files are identified by their suffix being from {.png, .jpg, .jpeg, .gif}.

参数:

directory - the directory to start with

descendIntoSubDirectories - should we include sub directories?

返回:

an ArrayList containing all the files or nul if none are found..

抛出:

java.io.IOException

saveImageResultsToHtml

public static java.lang.String saveImageResultsToHtml(java.lang.String prefix,
                                                      ImageSearchHits hits,
                                                      java.lang.String queryImage,
                                                      org.apache.lucene.index.IndexReader reader)
                                               throws java.io.IOException

Puts results into a HTML file.

参数:

prefix -

hits -

queryImage -

返回:

抛出:

java.io.IOException

saveImageResultsToHtml

public static java.lang.String saveImageResultsToHtml(java.lang.String prefix,
                                                      org.apache.lucene.search.TopDocs hits,
                                                      org.apache.lucene.index.IndexReader reader,
                                                      java.lang.String queryImage)
                                               throws java.io.IOException

Puts results into a HTML file.

参数:

prefix -

hits -

reader -

queryImage -

返回:

抛出:

java.io.IOException

browseUri

public static void browseUri(java.lang.String uri)

Opens a browser windows th

参数:

uri - the path to the file to show in the browser window.

saveImageResultsToPng

public static void saveImageResultsToPng(java.lang.String prefix,
                                         ImageSearchHits hits,
                                         java.lang.String queryImage,
                                         org.apache.lucene.index.IndexReader reader)
                                  throws java.io.IOException

抛出:

java.io.IOException

saveImageResultsToPng

public static void saveImageResultsToPng(java.lang.String prefix,
                                         org.apache.lucene.search.TopDocs hits,
                                         java.lang.String queryImage,
                                         org.apache.lucene.index.IndexReader ir)
                                  throws java.io.IOException

抛出:

java.io.IOException

zipDirectory

public static void zipDirectory(java.io.File directory,
                                java.io.File base,
                                java.util.zip.ZipOutputStream zos)
                         throws java.io.IOException

抛出:

java.io.IOException

isImageFileCompatible

public static boolean isImageFileCompatible(java.io.File f)

Just opens an image with Java and reports if false if there are problems. This method can be used to check for JPG etc. that are not supported by the employed Java version.

参数:

f - the file to check.

返回:

true if no exceptions are thrown bey the decoder.

readFileLines

public static java.util.ArrayList<java.lang.String> readFileLines(java.io.File directory,
                                                                  boolean descendIntoSubDirectories)
                                                           throws java.io.IOException

抛出:

java.io.IOException

readWholeFile

public static void readWholeFile(java.io.File file,
                                 java.lang.StringBuilder stringBuilder)
                          throws java.io.IOException

Reads a whole file into a StringBuffer based on java.nio

参数:

file - the file to open.

stringBuilder - to write the File to.

抛出:

java.io.IOException

readFileToByteArray

public static byte[] readFileToByteArray(java.io.File file)
                                  throws java.io.IOException

Reads a whole file into a StringBuffer based on java.nio

参数:

file - the file to open.

抛出:

java.io.IOException