/*
* Copyright 2001-2002,2004 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.webapp.admin.service;
import java.io.IOException;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.ArrayList;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.util.MessageResources;
import javax.management.MBeanServer;
import javax.management.ObjectInstance;
import javax.management.ObjectName;
import javax.management.JMException;
import org.apache.webapp.admin.ApplicationServlet;
import org.apache.webapp.admin.LabelValueBean;
import org.apache.webapp.admin.Lists;
import org.apache.webapp.admin.TomcatTreeBuilder;
/**
* The <code>Action</code> that sets up <em>Edit Service</em> transactions.
*
* @author Manveen Kaur
* @version $Revision: 1.9 $ $Date: 2004/03/04 18:44:51 $
*/
public class EditServiceAction extends Action {
/**
* The MBeanServer we will be interacting with.
*/
private MBeanServer mBServer = null;
/**
* The MessageResources we will be retrieving messages from.
*/
private MessageResources resources = null;
// --------------------------------------------------------- Public Methods
/**
* Process the specified HTTP request, and create the corresponding HTTP
* response (or forward to another web component that will create it).
* Return an <code>ActionForward</code> instance describing where and how
* control should be forwarded, or <code>null</code> if the response has
* already been completed.
*
* @param mapping The ActionMapping used to select this instance
* @param actionForm The optional ActionForm bean for this request (if any)
* @param request The HTTP request we are processing
* @param response The HTTP response we are creating
*
* @exception IOException if an input/output error occurs
* @exception ServletException if a servlet exception occurs
*/
public ActionForward perform(ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException {
// Acquire the resources that we need
HttpSession session = request.getSession();
Locale locale = (Locale) session.getAttribute(Action.LOCALE_KEY);
if (resources == null) {
resources = getServlet().getResources();
}
// Acquire a reference to the MBeanServer containing our MBeans
try {
mBServer = ((ApplicationServlet) getServlet()).getServer();
} catch (Throwable t) {
throw new ServletException
("Cannot acquire MBeanServer reference", t);
}
// Set up the object names of the MBeans we are manipulating
ObjectName sname = null;
ObjectName ename = null;
StringBuffer sb = null;
try {
sname = new ObjectName(request.getParameter("select"));
} catch (Exception e) {
String message =
resources.getMessage(locale, "error.serviceName.bad",
request.getParameter("select"));
getServlet().log(message);
response.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
return (null);
}
try {
sb = new StringBuffer(sname.getDomain());
sb.append(":type=Engine");
ename = new ObjectName(sb.toString());
} catch (Exception e) {
String message =
resources.getMessage(locale, "error.engineName.bad",
sb.toString());
getServlet().log(message);
response.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
return (null);
}
String adminService = null;
// Get the service name the admin app runs on
// this service cannot be deleted from the admin tool
try {
adminService = Lists.getAdminAppService(
mBServer, sname.getDomain(),request);
} catch (Exception e) {
String message =
resources.getMessage(locale, "error.serviceName.bad",
adminService);
getServlet().log(message);
response.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
return (null);
}
// Fill in the form values for display and editing
ServiceForm serviceFm = new ServiceForm();
session.setAttribute("serviceForm", serviceFm);
serviceFm.setAdminAction("Edit");
serviceFm.setObjectName(sname.toString());
serviceFm.setEngineObjectName(ename.toString());
sb = new StringBuffer();
sb.append(resources.getMessage(locale, "server.service.treeBuilder.subtreeNode"));
sb.append(" (");
sb.append(sname.getKeyProperty("serviceName"));
sb.append(")");
serviceFm.setNodeLabel(sb.toString());
serviceFm.setAdminServiceName(adminService);
serviceFm.setDebugLvlVals(Lists.getDebugLevels());
String attribute = null;
try {
// Copy scalar properties
attribute = "name";
serviceFm.setServiceName
((String) mBServer.getAttribute(sname, attribute));
attribute = "name";
serviceFm.setEngineName
((String) mBServer.getAttribute(ename, attribute));
attribute = "debug";
serviceFm.setDebugLvl
(((Integer) mBServer.getAttribute(ename, attribute)).toString());
attribute = "defaultHost";
serviceFm.setDefaultHost
((String) mBServer.getAttribute(ename, attribute));
// Build the list of available hosts
attribute = "hosts";
ArrayList hosts = new ArrayList();
hosts.add(new LabelValueBean
(resources.getMessage(locale, "list.none"), ""));
Iterator items = Lists.getHosts(mBServer, sname).iterator();
while (items.hasNext()) {
ObjectName hname = new ObjectName((String) items.next());
String name = hname.getKeyProperty("host");
if (name!=null) {
hosts.add(new LabelValueBean(name, name));
}
}
serviceFm.setHostNameVals(hosts);
} catch (Throwable t) {
getServlet().log
(resources.getMessage(locale, "users.error.attribute.get",
attribute), t);
response.sendError
(HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
resources.getMessage(locale, "users.error.attribute.get",
attribute));
return (null);
}
// Forward to the service display page
return (mapping.findForward("Service"));
}
}