Coverage Report - org.apache.shiro.util.AbstractFactory
 
Classes in this File Line Coverage Branch Coverage Complexity
AbstractFactory
66%
10/15
50%
3/6
1.8
 
 1  
 /*
 2  
  * Licensed to the Apache Software Foundation (ASF) under one
 3  
  * or more contributor license agreements.  See the NOTICE file
 4  
  * distributed with this work for additional information
 5  
  * regarding copyright ownership.  The ASF licenses this file
 6  
  * to you under the Apache License, Version 2.0 (the
 7  
  * "License"); you may not use this file except in compliance
 8  
  * with the License.  You may obtain a copy of the License at
 9  
  *
 10  
  *     http://www.apache.org/licenses/LICENSE-2.0
 11  
  *
 12  
  * Unless required by applicable law or agreed to in writing,
 13  
  * software distributed under the License is distributed on an
 14  
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 15  
  * KIND, either express or implied.  See the License for the
 16  
  * specific language governing permissions and limitations
 17  
  * under the License.
 18  
  */
 19  
 package org.apache.shiro.util;
 20  
 
 21  
 /**
 22  
  * TODO - Class JavaDoc
 23  
  *
 24  
  * @since 1.0
 25  
  */
 26  
 public abstract class AbstractFactory<T> implements Factory<T> {
 27  
 
 28  
     private boolean singleton;
 29  
     private T singletonInstance;
 30  
 
 31  23
     public AbstractFactory() {
 32  23
         this.singleton = true;
 33  23
     }
 34  
 
 35  
     public boolean isSingleton() {
 36  12
         return singleton;
 37  
     }
 38  
 
 39  
     public void setSingleton(boolean singleton) {
 40  0
         this.singleton = singleton;
 41  0
     }
 42  
 
 43  
     public T getInstance() {
 44  
         T instance;
 45  12
         if (isSingleton()) {
 46  12
             if (this.singletonInstance == null) {
 47  12
                 this.singletonInstance = createInstance();
 48  
             }
 49  12
             instance = this.singletonInstance;
 50  
         } else {
 51  0
             instance = createInstance();
 52  
         }
 53  12
         if (instance == null) {
 54  0
             String msg = "Factory 'createInstance' implementation returned a null object.";
 55  0
             throw new IllegalStateException(msg);
 56  
         }
 57  12
         return instance;
 58  
     }
 59  
 
 60  
     protected abstract T createInstance();
 61  
 }