private Map query()

in jsign-core/src/main/java/net/jsign/jca/RESTClient.java [50:79]

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

    private Map<String, ?> query(String method, String resource, String body) throws IOException {
        URL url = new URL(resource.startsWith("http") ? resource : endpoint + resource);
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod(method);
        conn.setRequestProperty("User-Agent", "Jsign (https://ebourg.github.io/jsign/)");
        authenticationHandler.accept(conn);

        if (body != null) {
            byte[] data = body.getBytes(StandardCharsets.UTF_8);
            conn.setDoOutput(true);
            conn.setRequestProperty("Content-Type", "application/json; charset=utf-8");
            conn.setRequestProperty("Content-Length", String.valueOf(data.length));
            conn.getOutputStream().write(data);
        }

        int responseCode = conn.getResponseCode();
        String contentType = conn.getHeaderField("Content-Type");
        if (responseCode < 400) {
            String response = IOUtils.toString(conn.getInputStream(), StandardCharsets.UTF_8);

            return JsonReader.jsonToMaps(response);
        } else {
            String error = IOUtils.toString(conn.getErrorStream(), StandardCharsets.UTF_8);
            if (contentType != null && contentType.startsWith("application/json")) {
                throw new IOException(getErrorMessage(JsonReader.jsonToMaps(error)));
            } else {
                throw new IOException("HTTP Error " + responseCode + (conn.getResponseMessage() != null ? " - " + conn.getResponseMessage() : "") + " (" + url + ")");
            }
        }
    }