java - FileUtils.listFiles() on resources directory -

java - FileUtils.listFiles() on resources directory -

in project have resources directory my_directory inside. my_directory contains text files.

i want loop directory with:

url resource = resources.class.getresource("/my_directory"); file directory = new file(resource.getpath()); collection<file> files = fileutils.listfiles(directory, new string[]{"txt"}, true);

files collection contains .txt files.

it works if run project in debugger. if build project jar file, gives error:

java.lang.illegalargumentexception: parameter 'directory' not directory

directory file path is:

/home/hsz/.../lib/my_project.jar!/my_directory

how can utilize apache's fileutils on resources directory ?

when files / directories bundled within .jar file, no longer treated file objects. can read acquiring inputstream like

inputstream input = getclass().getresourceasstream("my_directory/file");

i suggest maintain folder files in filesystem , create operations want perform. there reason, want bundle them jar prior these manipulation.

as per reply in below question, in java 7, can create filesystem jar (zip) file, , utilize nio's directory walking , filtering mechanisms search through it. create easier write code handles jars , "exploded" directories. can seek that!

java resources apache-commons-io