/*
* 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.logger;
import java.net.URLEncoder;
import java.util.Iterator;
import java.util.Locale;
import java.io.IOException;
import javax.management.Attribute;
import javax.management.MBeanServer;
import javax.management.MBeanServerFactory;
import javax.management.QueryExp;
import javax.management.Query;
import javax.management.ObjectInstance;
import javax.management.ObjectName;
import javax.management.JMException;
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.ActionError;
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 org.apache.webapp.admin.ApplicationServlet;
import org.apache.webapp.admin.TomcatTreeBuilder;
import org.apache.webapp.admin.TreeControl;
import org.apache.webapp.admin.TreeControlNode;
/**
* The <code>Action</code> that completes <em>Add Logger</em> and
* <em>Edit Logger</em> transactions.
*
* @author Manveen Kaur
* @version $Revision: 1.8 $ $Date: 2004/03/04 18:44:51 $
*/
public final class SaveLoggerAction extends Action {
// ----------------------------------------------------- Instance Variables
/**
* Signature for the <code>createStandardLogger</code> operation.
*/
private String createStandardLoggerTypes[] =
{ "java.lang.String" // parent
};
/**
* 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);
}
// Identify the requested action
LoggerForm lform = (LoggerForm) form;
String adminAction = lform.getAdminAction();
String lObjectName = lform.getObjectName();
String loggerType = lform.getLoggerType();
// Perform a "Create Logger" transaction (if requested)
if ("Create".equals(adminAction)) {
String operation = null;
String values[] = null;
try {
String parent = lform.getParentObjectName();
String objectName = DeleteLoggerAction.getObjectName(
parent, TomcatTreeBuilder.LOGGER_TYPE);
ObjectName pname = new ObjectName(parent);
StringBuffer sb = new StringBuffer(pname.getDomain());
// For service, create the corresponding Engine mBean
// Parent in this case needs to be the container mBean for the service
try {
if ("Service".equalsIgnoreCase(pname.getKeyProperty("type"))) {
sb.append(":type=Engine");;
parent = 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);
}
// Ensure that the requested logger name is unique
ObjectName oname =
new ObjectName(objectName);
if (mBServer.isRegistered(oname)) {
ActionErrors errors = new ActionErrors();
errors.add("loggerName",
new ActionError("error.loggerName.exists"));
saveErrors(request, errors);
return (new ActionForward(mapping.getInput()));
}
String domain = oname.getDomain();
// Look up our MBeanFactory MBean
ObjectName fname =
TomcatTreeBuilder.getMBeanFactory();
// Create a new StandardLogger object
values = new String[1];
values[0] = parent;
operation = "create" + loggerType;
lObjectName = (String)
mBServer.invoke(fname, operation,
values, createStandardLoggerTypes);
// Add the new Logger to our tree control node
TreeControl control = (TreeControl)
session.getAttribute("treeControlTest");
if (control != null) {
TreeControlNode parentNode = control.findNode(lform.getParentObjectName());
if (parentNode != null) {
String nodeLabel =
resources.getMessage(locale,
"server.service.treeBuilder.loggerFor",
parentNode.getLabel().toString());
String encodedName =
URLEncoder.encode(lObjectName);
TreeControlNode childNode =
new TreeControlNode(lObjectName,
"Logger.gif",
nodeLabel,
"EditLogger.do?select=" +
encodedName,
"content",
true, domain);
parentNode.addChild(childNode);
// FIXME - force a redisplay
} else {
getServlet().log
("Cannot find parent node '" + parent + "'");
}
} else {
getServlet().log
("Cannot find TreeControlNode!");
}
} catch (Exception e) {
getServlet().log
(resources.getMessage(locale, "users.error.invoke",
operation), e);
response.sendError
(HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
resources.getMessage(locale, "users.error.invoke",
operation));
return (null);
}
}
// Perform attribute updates as requested
String attribute = null;
try {
ObjectName loname = new ObjectName(lObjectName);
attribute = "debug";
int debug = 0;
try {
debug = Integer.parseInt(lform.getDebugLvl());
} catch (Throwable t) {
debug = 0;
}
mBServer.setAttribute(loname,
new Attribute("debug", new Integer(debug)));
attribute = "verbosity";
int verbosity = 0;
try {
verbosity = Integer.parseInt(lform.getVerbosityLvl());
} catch (Throwable t) {
verbosity = 0;
}
mBServer.setAttribute(loname,
new Attribute("verbosity", new Integer(verbosity)));
if("FileLogger".equalsIgnoreCase(loggerType)) {
attribute = "directory";
mBServer.setAttribute(loname,
new Attribute("directory", lform.getDirectory()));
attribute = "prefix";
mBServer.setAttribute(loname,
new Attribute("prefix", lform.getPrefix()));
attribute = "suffix";
mBServer.setAttribute(loname,
new Attribute("suffix", lform.getSuffix()));
attribute = "timestamp";
mBServer.setAttribute(loname,
new Attribute("timestamp", new Boolean(lform.getTimestamp())));;
}
} catch (Exception e) {
getServlet().log
(resources.getMessage(locale, "users.error.attribute.set",
attribute), e);
response.sendError
(HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
resources.getMessage(locale, "users.error.attribute.set",
attribute));
return (null);
}
// Forward to the success reporting page
session.removeAttribute(mapping.getAttribute());
return (mapping.findForward("Save Successful"));
}
}