|
1
9 package org.jboss.portal.portlet;
10
11 import java.util.Collections  ;
12 import java.util.HashMap ;
13 import java.util.Iterator ;
14 import java.util.Map ;
15
16 import javax.portlet.Portlet;
17 import javax.portlet.PortletConfig;
18 import javax.portlet.PortletException;
19
20 import org.jboss.portal.portlet.impl.PortletConfigImpl;
21 import org.jboss.portal.portlet.metadata.ParameterMetaData;
22 import org.jboss.portal.portlet.metadata.PortletMetaData;
23 import org.jboss.portal.portlet.metadata.SecurityRoleRefMetaData;
24 import org.jboss.portal.portlet.plugins.language.ResourceBundles;
25 import org.jboss.portal.server.Component;
26 import org.jboss.portal.server.metadata.ServerObjectMetaData;
27
28
34 public class PortletContainer
35 extends Component
36 {
37
38
39 protected PortletMetaData portletMD;
40
41
42 protected String className;
43
44
45 protected PortletConfig config;
46
47
48 protected Portlet portlet;
49
50
51 protected Map securityRoleRefsMap;
52
53 public PortletContainer(PortletMetaData portletMD)
54 {
55 super(portletMD.getName());
56 this.portletMD = portletMD;
57 }
58
59 public ServerObjectMetaData getMetaData()
60 {
61 return portletMD;
62 }
63
64 public void start() throws Exception , PortletInitializationException
65 {
66 super.start();
68
69 if (portletMD.getClassName() == null)
71 {
72 throw new Exception ("No class name specified");
73 }
74 if (portletMD.getClassName() == null)
75 {
76 throw new Exception ("No class name specified");
77 }
78
79 this.className = portletMD.getClassName();
81
82 Map securityRoleRefsMap = new HashMap ();
84 for (Iterator i = portletMD.getSecurityRoleRefs().iterator();i.hasNext();)
85 {
86 SecurityRoleRefMetaData securityRoleRefMD = (SecurityRoleRefMetaData)i.next();
87 securityRoleRefsMap.put(securityRoleRefMD.getRoleName(), securityRoleRefMD.getRoleLink());
88 }
89
90 Map initParameters = new HashMap ();
92 for (Iterator i = portletMD.getParameters().values().iterator();i.hasNext();)
93 {
94 ParameterMetaData parameterMD = (ParameterMetaData)i.next();
95 initParameters.put(parameterMD.getName(), parameterMD.getValue());
96 }
97
98 ResourceBundles resourceBundles = (ResourceBundles)getPlugin(PortletConstants.PLUGIN_LANG);
100 PortletConfig config = new PortletConfigImpl(
101 name,
102 ((PortletApplication)application).getPortletContext(),
103 initParameters,
104 resourceBundles);
105
106 Integer expirationCache = null;
108 try
109 {
110 String value = portletMD.getExpirationCache();
111 if (value != null && value.length() > 0)
112 {
113 expirationCache = Integer.valueOf(value);
114 }
115 }
116 catch (NumberFormatException e)
117 {
118 log.error("Invalid expiration cache value " + portletMD.getExpirationCache());
119 }
120
121 try
123 {
124 log.debug("Loading portlet class " + className);
125 Class portletClass = application.getClassLoader().loadClass(className);
126 log.debug("Creating portlet object " + className);
127 Portlet portlet = (Portlet)portletClass.newInstance();
128 log.debug("Created portlet object " + className);
129 initPortlet(portlet, config);
130 log.debug("Initialized portlet object " + className);
131
132 this.portlet = portlet;
134 this.config = config;
135 this.securityRoleRefsMap = Collections.unmodifiableMap(securityRoleRefsMap);
136 this.expirationCache = expirationCache;
137
138 valve.open();
140 }
141 catch (IllegalAccessException e)
142 {
143 throw new PortletInitializationException("Portlet class not accessible " + className, e);
144 }
145 catch (ClassNotFoundException e)
146 {
147 throw new PortletInitializationException("Portlet class not found " + className, e);
148 }
149 catch (InstantiationException e)
150 {
151 throw new PortletInitializationException("Portlet class cannot be instantiated " + className, e);
152 }
153 catch (PortletException e)
154 {
155 throw new PortletInitializationException("The portlet threw a portlet exception during init", e);
156 }
157 catch (RuntimeException e)
158 {
159 throw new PortletInitializationException("The portlet threw a runtime exception during init", e);
160 }
161 catch (Error e)
162 {
163 throw new PortletInitializationException("The portlet threw an error during init", e);
164 }
165 }
166
167 public void stop()
168 {
169 boolean done = valve.closing(60000);
171 if (!done)
172 {
173 log.warn("The valve is still holding invocations, continue anyway");
174 }
175
176 valve.closed();
178
179 destroyPortlet(portlet);
181
182 className = null;
184 portlet = null;
185 securityRoleRefsMap = null;
186 config = null;
187 expirationCache = null;
188 }
189
190 public Portlet getPortlet()
191 {
192 return portlet;
193 }
194
195 public Map getSecurityRoleRefsMap()
196 {
197 return securityRoleRefsMap;
198 }
199
200 public String getClassName()
201 {
202 return className;
203 }
204
205 public PortletConfig getConfig()
206 {
207 return config;
208 }
209
210
213 private void initPortlet(Portlet portlet, PortletConfig config) throws PortletException
214 {
215 ClassLoader oldLoader = Thread.currentThread().getContextClassLoader();
216 try
217 {
218 ClassLoader newLoader = application.getClassLoader();
220 Thread.currentThread().setContextClassLoader(newLoader);
221 portlet.init(config);
222 }
223 finally
224 {
225 Thread.currentThread().setContextClassLoader(oldLoader);
226 }
227 }
228
229
232 private void destroyPortlet(Portlet portlet)
233 {
234 ClassLoader oldLoader = Thread.currentThread().getContextClassLoader();
235 try
236 {
237 ClassLoader newLoader = application.getClassLoader();
239 Thread.currentThread().setContextClassLoader(newLoader);
240 if (portlet != null)
241 {
242 portlet.destroy();
243 }
244 else
245 {
246 log.debug("Cannot call destroy, portlet was null");
247 }
248 }
249 catch (RuntimeException e)
250 {
251 log.error("The portlet threw a runtime exception", e);
252 }
253 finally
254 {
255 Thread.currentThread().setContextClassLoader(oldLoader);
256 }
257 }
258 }
259 |
Popular Tags |
Java API By Example, From Geeks To Geeks.