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JarResourceLoaderHelper |
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/* ** Rachel - Resource Loading Toolkit for Web Start/JNLP ** Copyright (c) 2001, 2002 by Gerald Bauer ** ** This program is free software. ** ** You may redistribute it and/or modify it under the terms of the GNU ** General Public License as published by the Free Software Foundation. ** Version 2 of the license should be included with this distribution in ** the file LICENSE, as well as License.html. If the license is not ** included with this distribution, you may find a copy at the FSF web ** site at 'www.gnu.org' or 'www.fsf.org', or you may write to the ** Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139 USA. ** ** THIS SOFTWARE IS PROVIDED AS-IS WITHOUT WARRANTY OF ANY KIND, ** NOT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY. THE AUTHOR ** OF THIS SOFTWARE, ASSUMES _NO_ RESPONSIBILITY FOR ANY ** CONSEQUENCE RESULTING FROM THE USE, MODIFICATION, OR ** REDISTRIBUTION OF THIS SOFTWARE. ** */ package rachel.loader; import java.io.*; import java.net.*; import java.util.*; import java.util.jar.*; import houston.*; import rachel.*; import rachel.util.*; public class JarResourceLoaderHelper implements ResourceLoader { static Logger T = Logger.getLogger( JarResourceLoaderHelper.class ); private File _file; private JarFile _jarFile; public JarResourceLoaderHelper( File file, JarFile jarFile ) { _file = file; _jarFile = jarFile; } public InputStream getResourceAsStream( String name ) { T.debug( "getResourceAsStream( name=" + name + " )" ); try { JarEntry entry = ( JarEntry ) _jarFile.getEntry( name ); if( entry == null ) return null; return _jarFile.getInputStream( entry ); } catch( IOException ioex ) { Status.error( "*** failed to retrieve resource '" + name + "' inside jar: " + ioex.getMessage() ); return null; } } public URL getResourceAsUrl( String name ) { T.debug( "getResourceAsUrl( name=" + name + " )" ); try { // check if entry exists JarEntry entry = ( JarEntry ) _jarFile.getEntry( name ); if( entry == null ) return null; URL jarURL = new URL( "jar:" + _file.toURL() + "!/" + name ); T.debug( "jarURL=" + jarURL.toExternalForm() ); return jarURL; } catch( IOException ioex ) { Status.error( "*** failed to retrieve resource '" + name + "' inside jar: " + ioex.getMessage() ); return null; } } }
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JarResourceLoaderHelper |
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