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1
9 package org.jboss.portal.server.servlet;
10
11 import org.apache.log4j.Logger;
12 import org.jboss.mx.util.MBeanServerLocator;
13 import org.jboss.portal.common.util.Exceptions;
14 import org.jboss.portal.server.PortalRequest;
15 import org.jboss.portal.server.PortalResponse;
16 import org.jboss.portal.server.PortalServer;
17 import org.jboss.portal.server.ServerManager;
18 import org.jboss.portal.server.invocation.AttachmentKey;
19 import org.jboss.portal.server.invocation.Invocation;
20 import org.jboss.portal.server.invocation.InvocationFactory;
21
22 import javax.management.MBeanServer  ;
23 import javax.management.ObjectName ;
24 import javax.servlet.ServletException ;
25 import javax.servlet.http.HttpServlet ;
26 import javax.servlet.http.HttpServletRequest ;
27 import javax.servlet.http.HttpServletResponse ;
28 import java.io.IOException ;
29
30
34 public abstract class AbstractMainServlet extends HttpServlet
35 {
36
37 protected Logger log = Logger.getLogger(getClass());
38
39 private PortalServer server;
40
41 protected final PortalServer getContainer()
42 {
43 if (server == null)
44 {
45 try
46 {
47 MBeanServer mbeanServer = MBeanServerLocator.locateJBoss();
48 ObjectName name = new ObjectName (getServletContext().getInitParameter("org.jboss.portal.server#SERVER_MANAGER"));
49 server = (PortalServer)mbeanServer.getAttribute(name, "PortalServer");
50 }
51 catch (Exception e)
52 {
53 log.error(e);
54 throw new IllegalStateException ("Cannot get portal server");
55 }
56 }
57 return server;
58 }
59
60 protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException , IOException
61 {
62 doGet(req, resp);
63 }
64
65 protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException , IOException
66 {
67 PortalServer container = getContainer();
68 ServerManager manager = container.getManager();
69 InvocationFactory ctx = manager.getInvocationContext();
70 Invocation invocation = ctx.decode(req, resp);
71 invoke(invocation);
72 }
73
74 protected void invoke(Invocation invocation) throws ServletException , IOException
75 {
76 try
77 {
78 getContainer().invoke(invocation);
79 PortalRequest req = (PortalRequest)invocation.getAttachment(AttachmentKey.PORTAL_REQUEST);
80 PortalResponse resp = (PortalResponse)invocation.getAttachment(AttachmentKey.PORTAL_RESPONSE);
81 render(req, resp);
82 }
83 catch (IOException e)
84 {
85 throw e;
86 }
87 catch (ServletException e)
88 {
89 throw e;
90 }
91 catch (Exception e)
92 {
93 log.error("Exception caught in processing servlet", e);
94 Throwable nested = Exceptions.unwrap(e);
95 throw new ServletException (nested);
96 }
97 }
98
99 protected abstract void render(PortalRequest presp, PortalResponse preq) throws IOException , ServletException ;
100 }
101 |
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