private static void extractResourcePathFromJar()

in src/main/java/org/apache/maven/shared/verifier/util/ResourceExtractor.java [114:163]
49 lines of code
5 McCabe index (conditional complexity)

    private static void extractResourcePathFromJar( Class<?> cl, File jarFile, String resourcePath, File dest )
        throws IOException
    {
        ZipFile z = new ZipFile( jarFile, ZipFile.OPEN_READ );
        String zipStyleResourcePath = resourcePath.substring( 1 ) + "/";
        ZipEntry ze = z.getEntry( zipStyleResourcePath );
        if ( ze != null )
        {
            // DGF If it's a directory, then we need to look at all the entries
            for ( Enumeration<? extends ZipEntry> entries = z.entries(); entries.hasMoreElements(); )
            {
                ze = entries.nextElement();
                if ( ze.getName().startsWith( zipStyleResourcePath ) )
                {
                    String relativePath = ze.getName().substring( zipStyleResourcePath.length() );
                    File destFile = new File( dest, relativePath );
                    if ( ze.isDirectory() )
                    {
                        destFile.mkdirs();
                    }
                    else
                    {
                        FileOutputStream fos = new FileOutputStream( destFile );
                        try
                        {
                            IOUtil.copy( z.getInputStream( ze ), fos );
                        }
                        finally
                        {
                            IOUtil.close( fos );
                            z.close();
                        }
                    }
                }
            }
        }
        else
        {
            FileOutputStream fos = new FileOutputStream( dest );
            try
            {
                IOUtil.copy( cl.getResourceAsStream( resourcePath ), fos );
            }
            finally
            {
                IOUtil.close( fos );
                z.close();
            }
        }
    }