+ return "URL:" + url.toString();
+ }
+
+ /**
+ * Load the given key.
+ *
+ * @param key the key to load
+ * @return the loaded data
+ */
+ private InputStream load(String key) {
+ byte[] data = this.data.get(key);
+ if (data != null) {
+ return new ByteArrayInputStream(data);
+ }
+
+ return null;