protected Map parseQuery()

in velocity-tools-generic/src/main/java/org/apache/velocity/tools/generic/LinkTool.java [836:872]

• 37 lines of code
• 7 McCabe index (conditional complexity)

    protected Map<String,Object> parseQuery(String query, String queryDelim)
    {
        if (query.startsWith("?"))
        {
            query = query.substring(1, query.length());
        }
        String[] pairs = query.split(queryDelim);
        if (pairs.length == 0)
        {
            return null;
        }
        Map<String,Object> params = new LinkedHashMap<String,Object>(pairs.length);
        for (String pair : pairs)
        {
            String[] kv = pair.split("=");
            String key = kv[0];
            Object value = kv.length > 1 ? kv[1] : null;
            if (params.containsKey(kv[0]))
            {
                Object oldval = params.get(key);
                if (oldval instanceof List)
                {
                    ((List)oldval).add((String)value);
                    value = oldval;
                }
                else
                {
                    List<String> list = new ArrayList<String>();
                    list.add((String)oldval);
                    list.add((String)value);
                    value = list;
                }
            }
            params.put(key, value);
        }
        return params;
    }