| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.openwhisk.core.entity |
| |
| import scala.util.Try |
| |
| import spray.json.JsString |
| import spray.json.JsValue |
| import spray.json.RootJsonFormat |
| import spray.json.deserializationError |
| |
| protected[core] class Subject private (private val subject: String) extends AnyVal { |
| protected[core] def asString = subject // to make explicit that this is a string conversion |
| protected[entity] def toJson = JsString(subject) |
| override def toString = subject |
| } |
| |
| protected[core] object Subject extends ArgNormalizer[Subject] { |
| |
| /** Minimum subject length */ |
| protected[core] val MIN_LENGTH = 5 |
| |
| /** |
| * Creates a Subject from a string. |
| * |
| * @param str the subject name, at least 6 characters |
| * @return Subject instance |
| * @throws IllegalArgumentException is argument is undefined |
| */ |
| @throws[IllegalArgumentException] |
| override protected[entity] def factory(str: String): Subject = { |
| require(str.length >= MIN_LENGTH, s"subject must be at least $MIN_LENGTH characters") |
| new Subject(str) |
| } |
| |
| /** |
| * Creates a random subject |
| * |
| * @return Subject |
| */ |
| protected[core] def apply(): Subject = { |
| Subject("anon-" + rand.alphanumeric.take(27).mkString) |
| } |
| |
| override protected[core] implicit val serdes = new RootJsonFormat[Subject] { |
| def write(s: Subject) = s.toJson |
| |
| def read(value: JsValue) = |
| Try { |
| val JsString(s) = value |
| Subject(s) |
| } getOrElse deserializationError("subject malformed") |
| } |
| |
| private val rand = new scala.util.Random() |
| } |