1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.service.impl;
24  
25  import com.liferay.portal.PortalException;
26  import com.liferay.portal.SystemException;
27  import com.liferay.portal.kernel.annotation.Propagation;
28  import com.liferay.portal.kernel.annotation.Transactional;
29  import com.liferay.portal.kernel.util.Validator;
30  import com.liferay.portal.model.ClassName;
31  import com.liferay.portal.model.ModelHintsUtil;
32  import com.liferay.portal.model.impl.ClassNameImpl;
33  import com.liferay.portal.service.base.ClassNameLocalServiceBaseImpl;
34  
35  import java.util.List;
36  import java.util.Map;
37  import java.util.concurrent.ConcurrentHashMap;
38  
39  /**
40   * <a href="ClassNameLocalServiceImpl.java.html"><b><i>View Source</i></b></a>
41   *
42   * @author Brian Wing Shun Chan
43   *
44   */
45  public class ClassNameLocalServiceImpl extends ClassNameLocalServiceBaseImpl {
46  
47      public ClassName addClassName(String value) throws SystemException {
48          long classNameId = counterLocalService.increment();
49  
50          ClassName className = classNamePersistence.create(classNameId);
51  
52          className.setValue(value);
53  
54          classNamePersistence.update(className, false);
55  
56          return className;
57      }
58  
59      @Transactional(propagation = Propagation.SUPPORTS, readOnly = true)
60      public void checkClassNames() throws SystemException {
61          if (_classNames.isEmpty()) {
62              List<ClassName> classNames = classNamePersistence.findAll();
63  
64              for (ClassName className : classNames) {
65                  _classNames.put(className.getValue(), className);
66              }
67          }
68  
69          List<String> models = ModelHintsUtil.getModels();
70  
71          for (String model : models) {
72              getClassName(model);
73          }
74      }
75  
76      public ClassName getClassName(long classNameId)
77          throws PortalException, SystemException {
78  
79          return classNamePersistence.findByPrimaryKey(classNameId);
80      }
81  
82      public ClassName getClassName(String value) throws SystemException {
83          if (Validator.isNull(value)) {
84              return _nullClassName;
85          }
86  
87          // Always cache the class name. This table exists to improve
88          // performance. Create the class name if one does not exist.
89  
90          ClassName className = _classNames.get(value);
91  
92          if (className == null) {
93              className = classNamePersistence.fetchByValue(value);
94  
95              if (className == null) {
96                  className = classNameLocalService.addClassName(value);
97              }
98  
99              _classNames.put(value, className);
100         }
101 
102         return className;
103     }
104 
105     public long getClassNameId(Class<?> classObj) {
106         return getClassNameId(classObj.getName());
107     }
108 
109     public long getClassNameId(String value) {
110         try {
111             ClassName className = getClassName(value);
112 
113             return className.getClassNameId();
114         }
115         catch (Exception e) {
116             throw new RuntimeException(
117                 "Unable to get class name from value " + value, e);
118         }
119     }
120 
121     private static ClassName _nullClassName = new ClassNameImpl();
122     private static Map<String, ClassName> _classNames =
123         new ConcurrentHashMap<String, ClassName>();
124 
125 }