package org.infinispan.commons.util;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.net.URI;
import java.net.URL;
import java.util.Collection;
public interface FileLookup {
/**
* Looks up the file, see : {@link FileLookupFactory.DefaultFileLookup}.
*
* @param filename might be the name of the file (too look it up in the class path) or an url to a file.
* @return an input stream to the file or null if nothing found through all lookup steps.
*/
InputStream lookupFile(String filename, ClassLoader cl);
/**
* Looks up the file, see : {@link FileLookupFactory.DefaultFileLookup}.
*
* @param filename might be the name of the file (too look it up in the class path) or an url to a file.
* @return an input stream to the file or null if nothing found through all lookup steps.
* @throws FileNotFoundException if file cannot be found
*/
InputStream lookupFileStrict(String filename, ClassLoader cl) throws FileNotFoundException;
/**
* Looks up the file, see : {@link FileLookupFactory.DefaultFileLookup}.
*
*
* @param uri An absolute, hierarchical URI with a scheme equal to
* <tt>"file"</tt> that represents the file to lookup
* @return an input stream to the file or null if nothing found through all lookup steps.
* @throws FileNotFoundException if file cannot be found
*/
InputStream lookupFileStrict(URI uri, ClassLoader cl) throws FileNotFoundException;
URL lookupFileLocation(String filename, ClassLoader cl);
Collection<URL> lookupFileLocations(String filename, ClassLoader cl) throws IOException;
}