ManageThresholdMonitorServletpublic class ManageThresholdMonitorServlet extends HttpServlet | Created by IntelliJ IDEA.
User: wburke
Date: Nov 25, 2003
Time: 5:53:01 PM
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| Fields Summary |
|---|
| static final long | serialVersionUID | | private static final Logger | log |
| Methods Summary |
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| protected void | doGet(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse resp)
doit(req, resp);
| | protected void | doPost(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse resp)
doit(req, resp);
| | protected void | doit(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse resp)
String action = req.getParameter("action");
if (action == null)
{
error("unknown action: ", req, resp);
return;
}
String monitorName = req.getParameter("monitorName").trim();
MBeanServer mbeanServer = MBeanServerLocator.locateJBoss();
ObjectName monitorObjectName, oname = null;
String attribute = null;
try
{
monitorObjectName = new ObjectName(req.getParameter("monitorObjectName"));
}
catch (Exception ex)
{
error("Malformed Monitor ObjectName: " + req.getParameter("monitorObjectName"), req, resp);
return;
}
if (action.trim().equals("Clear Alert"))
{
try
{
log.debug("Clearing Alert for monitor: " + monitorObjectName.toString());
String[] signature = {};
Object[] args = {};
mbeanServer.invoke(monitorObjectName, "clearAlert", args, signature);
req.setAttribute("error", "Alert cleared");
req.getRequestDispatcher("/manageThresholdMonitor.jsp").forward(req, resp);
return;
}
catch (Exception ex)
{
error("Failed to Clear Alert: " + ex.toString(), req, resp);
return;
}
}
else if (action.trim().equals("Remove Monitor"))
{
try
{
log.debug("removing monitor: " + monitorObjectName.toString());
Object[] args = {"monitors", monitorName, "-service.xml"};
String[] signature = {"java.lang.String", "java.lang.String", "java.lang.String"};
mbeanServer.invoke(new ObjectName("jboss.admin:service=DeploymentFileRepository"), "remove", args, signature);
req.getRequestDispatcher("/ServerInfo.jsp").forward(req, resp);
}
catch (Exception ex)
{
error("Failed to Remove Monitor: " + ex.toString(), req, resp);
}
return;
}
try
{
monitorObjectName = new ObjectName(req.getParameter("monitorObjectName"));
oname = (ObjectName) mbeanServer.getAttribute(monitorObjectName, "ObservedObject");
attribute = (String) mbeanServer.getAttribute(monitorObjectName, "ObservedAttribute");
}
catch (Exception ex)
{
error("Malformed Monitor ObjectName: " + req.getParameter("monitorObjectName"), req, resp);
return;
}
String threshold = req.getParameter("threshold").trim();
log.debug(threshold);
boolean enabled = req.getParameter("enabled") != null;
log.debug("Enabled: " + enabled);
boolean persisted = req.getParameter("persisted") != null;
log.debug("Persisted: " + persisted);
String period = req.getParameter("period").trim();
log.debug(period);
long timePeriod = 0;
try
{
timePeriod = Long.parseLong(period);
}
catch (NumberFormatException e)
{
error("Illegal format for watch period.", req, resp);
return;
}
String compare = req.getParameter("compare").trim();
log.debug(compare);
String[] alerts = req.getParameterValues("alerts");
if (alerts == null)
{
error("you must select at least one alert listener", req, resp);
return;
}
int compareTo = 0;
if ("gt".equals(compare))
compareTo = -1;
else if ("lt".equals(compare))
compareTo = 1;
else if ("eq".equals(compare)) compareTo = 0;
try
{
mbeanServer.setAttribute(monitorObjectName, new Attribute("Threshold", threshold));
mbeanServer.setAttribute(monitorObjectName, new Attribute("Enabled", new Boolean(enabled)));
mbeanServer.setAttribute(monitorObjectName, new Attribute("Period", new Long(timePeriod)));
mbeanServer.setAttribute(monitorObjectName, new Attribute("CompareTo", new Integer(compareTo)));
ArrayList list = new ArrayList();
for (int i = 0; i < alerts.length; i++)
{
list.add(new ObjectName(alerts[i]));
}
mbeanServer.setAttribute(monitorObjectName, new Attribute("AlertListeners", list));
}
catch (Exception ex)
{
error("Failed to update mbean monitor: " + ex.toString(), req, resp);
return;
}
if (persisted)
{
try
{
Object[] args = {"monitors", monitorName, "-service.xml"};
String[] signature = {"java.lang.String", "java.lang.String", "java.lang.String"};
Object rtn = mbeanServer.invoke(new ObjectName("jboss.admin:service=DeploymentFileRepository"), "isStored", args, signature);
if (!((Boolean) rtn).booleanValue())
{
error("Monitor with this name doesn't exist in repository", req, resp);
return;
}
}
catch (Exception ex)
{
error("Failed to determine if monitor with that name already exists: " + ex.toString(), req, resp);
return;
}
StringBuffer xml = new StringBuffer("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");
xml.append("<server>\n");
xml.append("<mbean code=\"org.jboss.monitor.ThresholdMonitor\"\n");
xml.append(" name=\"jboss.monitor:service=" + monitorName.replace(' ", '_") + "\">\n");
xml.append(" <attribute name=\"MonitorName\">" + monitorName + "</attribute>\n");
try
{
if (mbeanServer.isInstanceOf(oname, "org.jboss.system.ServiceMBean"))
{
xml.append(" <depends optional-attribute-name=\"ObservedObject\">" + oname + "</depends>\n");
}
else
{
xml.append(" <attribute name=\"ObservedObject\">" + oname + "</attribute>\n");
}
}
catch (Exception ex)
{
error("failed creating service: " + ex.toString(), req, resp);
return;
}
xml.append(" <attribute name=\"ObservedAttribute\">" + attribute + "</attribute>\n");
xml.append(" <depends-list optional-attribute-name=\"AlertListeners\">\n");
for (int i = 0; i < alerts.length; i++)
{
xml.append(" <depends-list-element>");
xml.append(alerts[i].trim());
xml.append(" </depends-list-element>\n");
}
xml.append(" </depends-list>\n");
xml.append(" <attribute name=\"Threshold\">" + threshold + "</attribute>\n");
xml.append(" <attribute name=\"Period\">" + timePeriod + "</attribute>\n");
xml.append(" <attribute name=\"CompareTo\">" + compareTo + "</attribute>\n");
xml.append(" <attribute name=\"Enabled\">" + enabled + "</attribute>\n");
xml.append("</mbean>\n</server>");
try
{
Object[] args = {"monitors", monitorName, "-service.xml", xml.toString(), Boolean.TRUE};
String[] signature = {"java.lang.String", "java.lang.String", "java.lang.String", "java.lang.String", "boolean"};
mbeanServer.invoke(new ObjectName("jboss.admin:service=DeploymentFileRepository"), "store", args, signature);
}
catch (Exception ex)
{
error("Failed to create persisted file: " + ex.toString(), req, resp);
return;
}
}
req.setAttribute("error", "Update complete!");
req.getRequestDispatcher("/manageThresholdMonitor.jsp").forward(req, resp);
| | protected void | error(java.lang.String msg, javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse resp)
req.setAttribute("error", "Error: " + msg);
//this.getServletContext().getRequestDispatcher("/createThresholdMonitor.jsp").forward(req, resp);
req.getRequestDispatcher("/manageThresholdMonitor.jsp").forward(req, resp);
return;
|
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