Demo for query storing

Change-Id: I947bcac841992c3f6cfd01ab337c265b0d01cb70
diff --git a/node_modules/parse-filepath/index.js b/node_modules/parse-filepath/index.js
new file mode 100644
index 0000000..0df0170
--- /dev/null
+++ b/node_modules/parse-filepath/index.js
@@ -0,0 +1,95 @@
+'use strict';
+
+var path = require('path');
+var isAbsolute = require('is-absolute');
+var pathRoot = require('path-root');
+var MapCache = require('map-cache');
+var cache = new MapCache();
+
+module.exports = function(filepath) {
+  if (typeof filepath !== 'string') {
+    throw new TypeError('parse-filepath expects a string');
+  }
+
+  if (cache.has(filepath)) {
+    return cache.get(filepath);
+  }
+
+  var obj = {};
+  if (typeof path.parse === 'function') {
+    obj = path.parse(filepath);
+    obj.extname = obj.ext;
+    obj.basename = obj.base;
+    obj.dirname = obj.dir;
+    obj.stem = obj.name;
+
+  } else {
+    define(obj, 'root', function() {
+      return pathRoot(this.path);
+    });
+
+    define(obj, 'extname', function() {
+      return path.extname(filepath);
+    });
+
+    define(obj, 'ext', function() {
+      return this.extname;
+    });
+
+    define(obj, 'name', function() {
+      return path.basename(filepath, this.ext);
+    });
+
+    define(obj, 'stem', function() {
+      return this.name;
+    });
+
+    define(obj, 'base', function() {
+      return this.name + this.ext;
+    });
+
+    define(obj, 'basename', function() {
+      return this.base;
+    });
+
+    define(obj, 'dir', function() {
+      var dir = path.dirname(filepath);
+      if (dir === '.') {
+        return (filepath[0] === '.') ? dir : '';
+      } else {
+        return dir;
+      }
+    });
+
+    define(obj, 'dirname', function() {
+      return this.dir;
+    });
+  }
+
+  obj.path = filepath;
+
+  define(obj, 'absolute', function() {
+    return path.resolve(this.path);
+  });
+
+  define(obj, 'isAbsolute', function() {
+    return isAbsolute(this.path);
+  });
+
+  cache.set(filepath, obj);
+  return obj;
+};
+
+function define(obj, prop, fn) {
+  var cached;
+  Object.defineProperty(obj, prop, {
+    configurable: true,
+    enumerable: true,
+    set: function(val) {
+      cached = val;
+    },
+    get: function() {
+      return cached || (cached = fn.call(obj));
+    }
+  });
+}