public void run()

in xhr4j/src/main/java/org/netbeans/html/xhr4j/LoadJSON.java [72:137]
65 lines of code
14 McCabe index (conditional complexity)

    public void run() {
        final String url;
        Throwable error = null;
        Object json = null;

        if (call.isJSONP()) {
            url = call.composeURL("dummy");
        } else {
            url = call.composeURL(null);
        }
        try {
            final URL u = new URL(base, url.replace(" ", "%20"));
            URLConnection conn = u.openConnection();
            if (call.isDoOutput()) {
                conn.setDoOutput(true);
            }
            String h = call.getHeaders();
            if (h != null) {
                int pos = 0;
                while (pos < h.length()) {
                    int tagEnd = h.indexOf(':', pos);
                    if (tagEnd == -1) {
                        break;
                    }
                    int r = h.indexOf('\r', tagEnd);
                    int n = h.indexOf('\n', tagEnd);
                    if (r == -1) {
                        r = h.length();
                    }
                    if (n == -1) {
                        n = h.length();
                    }
                    String key = h.substring(pos, tagEnd).trim();
                    String val = h.substring(tagEnd + 1, Math.min(r, n)).trim();
                    conn.setRequestProperty(key, val);;
                    pos = Math.max(r, n);
                }
            }
            if (call.getMethod() != null && conn instanceof HttpURLConnection) {
                ((HttpURLConnection) conn).setRequestMethod(call.getMethod());
            }
            if (call.isDoOutput()) {
                final OutputStream os = conn.getOutputStream();
                call.writeData(os);
                os.flush();
            }
            final PushbackInputStream is = new PushbackInputStream(
                conn.getInputStream(), 1
            );
            boolean[] arrayOrString = { false, false };
            detectJSONType(call.isJSONP(), is, arrayOrString);
            String response = readStream(is);
            if (call.isJSONP()) {
                response = '(' + response;
            }
            json = new Result(response, arrayOrString[0], arrayOrString[1]);
        } catch (IOException ex) {
            error = ex;
        } finally {
            if (error != null) {
                call.notifyError(error);
            } else {
                call.notifySuccess(json);
            }
        }
    }