static private List parseServiceDefinition()

in src/main/java/org/apache/tomee/jakartaee/api/locator/ProviderLocator.java [399:434]

• 26 lines of code
• 6 McCabe index (conditional complexity)

    static private List<String> parseServiceDefinition(final URL u) {
        final String url = u.toString();
        final List<String> classes = new ArrayList<String>();
        // ignore directories
        if (url.endsWith("/")) {
            return classes;
        }
        // the identifier used for the provider is the last item in the URL.
        final String providerId = url.substring(url.lastIndexOf("/") + 1);
        try {
            final BufferedReader br = new BufferedReader(new InputStreamReader(u.openStream(), "UTF-8"));
            // the file can be multiple lines long, with comments.  A single file can define multiple providers
            // for a single key, so we might need to create multiple entries.  If the file does not contain any
            // definition lines, then as a default, we use the providerId as an implementation class also.
            String line = br.readLine();
            while (line != null) {
                // we allow comments on these lines, and a line can be all comment
                final int comment = line.indexOf('#');
                if (comment != -1) {
                    line = line.substring(0, comment);
                }
                line = line.trim();
                // if there is nothing left on the line after stripping white space and comments, skip this
                if (line.length() > 0) {
                    // add this to our list
                    classes.add(line);
                }
                // keep reading until the end.
                line = br.readLine();
            }
            br.close();
        } catch (final IOException e) {
            // ignore errors and handle as default
        }
        return classes;
    }