private OAuthAccessToken parseJsonToken(HttpMessage response) { com.google.gson.JsonObject root = new com.google.gson.JsonObject(); com.google.gson.JsonParseException pe = null; try { root = (com.google.gson.JsonObject) new com.google.gson.JsonParser().parse(response.getBody()); } catch (com.google.gson.JsonParseException error) { pe = error; } boolean ok = root != null; if (!ok) { logger.error( new StringWriter().append("parseJsonToken(): ").append(pe.toString()).toString()); throw new OAuthProcess.TokenError(WString.tr("Wt.Auth.OAuthService.badjson")); } else { if (response.getStatus() == 200) { try { String accessToken = root.get("access_token").getAsString(); int secs = JsonUtils.orIfNullInt(root.get("expires_in"), -1); WDate expires = null; if (secs > 0) { expires = new WDate(new Date()).addSeconds(secs); } String refreshToken = JsonUtils.orIfNullString(root.get("refreshToken"), ""); return new OAuthAccessToken(accessToken, expires, refreshToken); } catch (RuntimeException e) { logger.error( new StringWriter().append("token response error: ").append(e.toString()).toString()); throw new OAuthProcess.TokenError(WString.tr("Wt.Auth.OAuthService.badresponse")); } } else { throw new OAuthProcess.TokenError( WString.tr( "Wt.Auth.OAuthService." + JsonUtils.orIfNullString(root.get("error"), "missing error"))); } } }