public static Map parseQuery()

in dubbo-admin-server/src/main/java/org/apache/dubbo/admin/common/util/ParseUtils.java [230:270]
37 lines of code
11 McCabe index (conditional complexity)

    public static Map<String, String> parseQuery(String keyPrefix, String query) {
        if (query == null)
            return new HashMap<String, String>();
        if (keyPrefix == null)
            keyPrefix = "";

        Matcher matcher = QUERY_PATTERN.matcher(query);
        Map<String, String> routeQuery = new HashMap<String, String>();
        String key = null;
        while (matcher.find()) { // Match one by one
            String separator = matcher.group(1);
            String content = matcher.group(2);
            if (separator == null || separator.length() == 0
                    || "&".equals(separator)) {
                if (key != null)
                    throw new IllegalStateException("Illegal query string \""
                            + query + "\", The error char '" + separator
                            + "' at index " + matcher.start() + " before \""
                            + content + "\".");
                key = content;
            } else if ("=".equals(separator)) {
                if (key == null)
                    throw new IllegalStateException("Illegal query string \""
                            + query + "\", The error char '" + separator
                            + "' at index " + matcher.start() + " before \""
                            + content + "\".");
                routeQuery.put(keyPrefix + key, content);
                key = null;
            } else {
                if (key == null)
                    throw new IllegalStateException("Illegal query string \""
                            + query + "\", The error char '" + separator
                            + "' at index " + matcher.start() + " before \""
                            + content + "\".");
            }
        }
        /*if (key != null)
        throw new IllegalStateException("Illegal route rule \"" + query
                + "\", The error in the end char: " + key);*/
        return routeQuery;
    }