tales.java

    /**
     * Convert a Map to UrlEncodedFormEntity
     *
     * @param parameters A Map of key:value
     * @return UrlEncodedFormEntity using UTF-8 encoding
     * @throws java.io.UnsupportedEncodingException
     *          if UTF-8 encoding is not supported
     */
    private static UrlEncodedFormEntity mapToEntity(Map<String, String> parameters)
            throws UnsupportedEncodingException {
        if (parameters == null) {
            throw new IllegalArgumentException("Invalid parameters unable map to Entity");
        }

        if (parameters.isEmpty()) {
            return null;
        }

        ArrayList<NameValuePair> parametersList = new ArrayList<NameValuePair>();

        for (@SuppressWarnings("rawtypes") Map.Entry element : parameters.entrySet()) {
            NameValuePair nameValuePair = new BasicNameValuePair((String) element.getKey(), (String) element.getValue());
            parametersList.add(nameValuePair);
        }

        return new UrlEncodedFormEntity(parametersList, HTTP.UTF_8);
    }