Demo for query storing

Change-Id: I947bcac841992c3f6cfd01ab337c265b0d01cb70
diff --git a/node_modules/is-retry-allowed/index.js b/node_modules/is-retry-allowed/index.js
new file mode 100644
index 0000000..3bab6c1
--- /dev/null
+++ b/node_modules/is-retry-allowed/index.js
@@ -0,0 +1,62 @@
+'use strict';
+
+var WHITELIST = [
+	'ETIMEDOUT',
+	'ECONNRESET',
+	'EADDRINUSE',
+	'ESOCKETTIMEDOUT',
+	'ECONNREFUSED',
+	'EPIPE',
+	'EHOSTUNREACH',
+	'EAI_AGAIN'
+];
+
+var BLACKLIST = [
+	'ENOTFOUND',
+	'ENETUNREACH',
+
+	// SSL errors from https://github.com/nodejs/node/blob/ed3d8b13ee9a705d89f9e0397d9e96519e7e47ac/src/node_crypto.cc#L1950
+	'UNABLE_TO_GET_ISSUER_CERT',
+	'UNABLE_TO_GET_CRL',
+	'UNABLE_TO_DECRYPT_CERT_SIGNATURE',
+	'UNABLE_TO_DECRYPT_CRL_SIGNATURE',
+	'UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY',
+	'CERT_SIGNATURE_FAILURE',
+	'CRL_SIGNATURE_FAILURE',
+	'CERT_NOT_YET_VALID',
+	'CERT_HAS_EXPIRED',
+	'CRL_NOT_YET_VALID',
+	'CRL_HAS_EXPIRED',
+	'ERROR_IN_CERT_NOT_BEFORE_FIELD',
+	'ERROR_IN_CERT_NOT_AFTER_FIELD',
+	'ERROR_IN_CRL_LAST_UPDATE_FIELD',
+	'ERROR_IN_CRL_NEXT_UPDATE_FIELD',
+	'OUT_OF_MEM',
+	'DEPTH_ZERO_SELF_SIGNED_CERT',
+	'SELF_SIGNED_CERT_IN_CHAIN',
+	'UNABLE_TO_GET_ISSUER_CERT_LOCALLY',
+	'UNABLE_TO_VERIFY_LEAF_SIGNATURE',
+	'CERT_CHAIN_TOO_LONG',
+	'CERT_REVOKED',
+	'INVALID_CA',
+	'PATH_LENGTH_EXCEEDED',
+	'INVALID_PURPOSE',
+	'CERT_UNTRUSTED',
+	'CERT_REJECTED'
+];
+
+module.exports = function (err) {
+	if (!err || !err.code) {
+		return true;
+	}
+
+	if (WHITELIST.indexOf(err.code) !== -1) {
+		return true;
+	}
+
+	if (BLACKLIST.indexOf(err.code) !== -1) {
+		return false;
+	}
+
+	return true;
+};