| /* |
| * Copyright 2015-2016 IBM Corporation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package common |
| |
| import scala.language.postfixOps |
| import scala.util.Try |
| |
| import spray.json.JsObject |
| import spray.json.JsValue |
| |
| trait JsHelpers { |
| implicit class JsObjectHelper(js: JsObject) { |
| def getFieldPath(path: String*): Option[JsValue] = { |
| if (path.size == 1) { |
| Try { |
| js.fields(path(0)) |
| } toOption |
| } else if (js.getFields(path(0)).size > 0) { |
| // current segment exists, but there are more... |
| js.fields(path(0)).asJsObject.getFieldPath(path.tail: _*) |
| } else { |
| None |
| } |
| } |
| |
| def fieldPathExists(path: String*): Boolean = { |
| !js.getFieldPath(path: _*).isEmpty |
| } |
| } |
| } |