static FilenameFilter parseExclusions()

in apache-rat-core/src/main/java/org/apache/rat/Report.java [119:141]

• 20 lines of code
• 5 McCabe index (conditional complexity)

    static FilenameFilter parseExclusions(List<String> excludes) throws IOException {
        final OrFileFilter orFilter = new OrFileFilter();
        int ignoredLines = 0;
        for (String exclude : excludes) {
            try {
                // skip comments
                if(exclude.startsWith("#") || StringUtils.isEmpty(exclude)) {
                    ignoredLines++;
                    continue;
                }

                String exclusion = exclude.trim();
                // interpret given patterns as regular expression, direct file names or wildcards to give users more choices to configure exclusions
                orFilter.addFileFilter(new RegexFileFilter(exclusion));
                orFilter.addFileFilter(new NameFileFilter(exclusion));
                orFilter.addFileFilter(new WildcardFileFilter(exclusion));
            } catch(PatternSyntaxException e) {
                System.err.println("Will skip given exclusion '" + exclude + "' due to " + e);
            }
        }
        System.err.println("Ignored " + ignoredLines + " lines in your exclusion files as comments or empty lines.");
        return new NotFileFilter(orFilter);
    }