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Java > Open Source Codes > org > apache > jetspeed > services > cms > manager > CmsFactory


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27  * "Apache Jetspeed" must not be used to endorse or promote products
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52  * <http://www.apache.org/>.
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54
55 package org.apache.jetspeed.services.cms.manager;
56
57 // JDK
58 import java.util.Hashtable JavaDoc;
59
60 // Turbine
61 import org.apache.turbine.services.TurbineServices;
62 import org.apache.turbine.util.TurbineException;
63 import org.apache.turbine.services.resources.TurbineResources;
64
65
66 //Jetspeed
67 import org.apache.jetspeed.services.cms.CmsService;
68 import org.apache.jetspeed.services.cms.JetspeedCMSException;
69 import org.apache.jetspeed.om.cms.CmsObject;
70
71 /**
72  * Factory class for creating Jetspeed CmsManager & CMS om classes
73  * The Cms classes are configured in the JR.p
74  *
75  * @author <a HREF="mailto:christophe.lombart@skynet.be">Christophe Lombart</a>
76  */
77 public class CmsFactory
78 {
79
80     private static String JavaDoc cmsManagerClassName = null;
81     private static Class JavaDoc cmsManagerClass = null;
82     private static Hashtable JavaDoc omClasses = new Hashtable JavaDoc();
83     
84
85     /**
86      * Factory method to create CmsManager instances.
87      *
88      * @param namespace associated to a CMS repository
89      * @throws Exception when the cmsManager instance can't be created.
90      * @return CmsManager a new created cmsManager.
91      */
92     public static CmsManager getCmsManagerInstance(String JavaDoc namespace)
93         throws JetspeedCMSException
94
95     {
96         CmsManager cmsManager = null;
97
98         if (null == cmsManagerClassName)
99         {
100             try
101             {
102                 cmsManagerClassName = TurbineResources.getString(
103                                  "services.CmsService.CmsManager." + namespace + ".class");
104                                  
105                 cmsManagerClass = Class.forName(cmsManagerClassName);
106             }
107             catch(Exception JavaDoc e)
108             {
109                 throw new JetspeedCMSException(
110                     "CmsFactory: Failed to create a CmsManager object for CMS implementation: " + e.toString());
111             }
112         }
113
114         try
115         {
116             cmsManager = (CmsManager) cmsManagerClass.newInstance();
117             cmsManager.init(namespace);
118
119         }
120         catch(Exception JavaDoc e)
121         {
122             throw new JetspeedCMSException("Failed instantiate an CmsManager implementation object: " + e.toString());
123         }
124
125         return cmsManager;
126     }
127
128     /**
129      * Factory method to create Cms objects.<br>
130      * It is a generic factory used to create all CMS objects.
131      * The parameter is used to get the matching classe define in the JR.prop.
132      *
133      * @param CmsOmName Cms object interface name
134      * @throws Exception when the cms object instance can't be created.
135      * @return Resource a new created cmsManager.
136      */
137     public static CmsObject getCmsOmInstance(String JavaDoc CmsOmName)
138          throws JetspeedCMSException
139     {
140         CmsObject cmsObject = null;
141         Class JavaDoc omClass = (Class JavaDoc) omClasses.get(CmsOmName);
142         
143         if (null == omClass)
144         {
145             try
146             {
147                 String JavaDoc omClassName = TurbineResources.getString(
148                                  "services.CmsService.om." + CmsOmName + ".class");
149                                  
150                 omClass = Class.forName(omClassName);
151                 omClasses.put(CmsOmName, omClass);
152             }
153             catch(Exception JavaDoc e)
154             {
155                 throw new JetspeedCMSException(
156                     "CmsFactory: Failed to create a Cms object for : " + e.toString());
157             }
158         }
159
160         try
161         {
162             cmsObject = (CmsObject) omClass.newInstance();
163
164         }
165         catch(Exception JavaDoc e)
166         {
167             throw new JetspeedCMSException("Failed to instantiate an Cms implementation object: " + e.toString());
168         }
169
170         return cmsObject;
171     
172     }
173
174 }
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