saveeventservlet.java

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//
// This file is part of the OpenNMS(R) Application.
//
// OpenNMS(R) is Copyright (C) 2002-2003 The OpenNMS Group, Inc.  All rights reserved.
// OpenNMS(R) is a derivative work, containing both original code, included code and modified
// code that was published under the GNU General Public License. Copyrights for modified 
// and included code are below.
//
// OpenNMS(R) is a registered trademark of The OpenNMS Group, Inc.
//
// Copyright (C) 1999-2001 Oculan Corp.  All rights reserved.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
// For more information contact:
//      OpenNMS Licensing       <[e-mail]>
//      http://www.opennms.org/
//      http://www.opennms.com/
//

package org.opennms.web.eventconf;

import java.io.IOException;
import java.util.StringTokenizer;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.opennms.web.eventconf.bobject.Correlation;
import org.opennms.web.eventconf.bobject.Event;
import org.opennms.web.eventconf.bobject.Snmp;
import org.opennms.web.parsers.XMLWriteException;

/**
 * A servlet that handles saving an event
 * 
 * @author <A HREF="mailto:[e-mail]">Jason Johns </A>
 * @author <A HREF="http://www.opennms.org/">OpenNMS </A>
 */
public class SaveEventServlet extends HttpServlet {
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        HttpSession user = request.getSession(false);

        if (user != null) {
            Event event = (Event) user.getAttribute("event.modify.jsp");

            // fill in all the values from the modify.jsp page
            event.setDescription(request.getParameter("descr"));
            event.setLogMessage(request.getParameter("logmsg"));
            event.setLogMessageDest(request.getParameter("logDest"));
            event.setSeverity(request.getParameter("severity"));

            // mask information set by dialog page

            if ((request.getParameter("snmp_id") != null && !request.getParameter("snmp_id").trim().equals("")) && (request.getParameter("snmp_version") != null && !request.getParameter("snmp_version").trim().equals(""))) {
                Snmp newSnmp = new Snmp();
                newSnmp.setId(request.getParameter("snmp_id"));
                newSnmp.setIdText(request.getParameter("snmp_text"));
                newSnmp.setVersion(request.getParameter("snmp_version"));
                newSnmp.setSpecific(request.getParameter("snmp_specific"));
                newSnmp.setGeneric(request.getParameter("snmp_generic"));
                newSnmp.setCommunity(request.getParameter("snmp_community"));
                event.setSnmp(newSnmp);
            } else {
                event.setSnmp(null);
            }

            if ((request.getParameter("correlationMin") != null && !request.getParameter("correlationMin").trim().equals("")) || (request.getParameter("correlationMax") != null && !request.getParameter("correlationMax").trim().equals("")) || (request.getParameter("correlationTime") != null && !request.getParameter("correlationTime").trim().equals("")) || (request.getParameter("correlationUEIs") != null && !request.getParameter("correlationUEIs").trim().equals(""))) {
                Correlation newCorrelation = new Correlation();
                parseCorrelationUEIs(request.getParameter("correlationUEIs"), newCorrelation);
                newCorrelation.setCorrelationPath(request.getParameter("correlationPath"));
                newCorrelation.setCorrelationMin(request.getParameter("correlationMin"));
                newCorrelation.setCorrelationMax(request.getParameter("correlationMax"));
                newCorrelation.setCorrelationTime(request.getParameter("correlationTime"));
                newCorrelation.setState(request.getParameter("correlationState"));
                event.setCorrelation(newCorrelation);
            } else {
                event.setCorrelation(null);
            }

            event.setOperInstruct(request.getParameter("operatorInstruction"));

            // auto action information set by dialog screen
            // operator action information set by dialog screen

            event.setAutoAcknowledge(request.getParameter("autoAcknowledge"));
            event.setAutoAcknowledgeState(request.getParameter("autoAcknowledgeState"));

            parseLogGroups(request.getParameter("logGroups"), event);
            parseNotifications(request.getParameter("notifications"), event);

            // forwards set by dialog screen
            event.setTticket(request.getParameter("troubleTicket"));
            event.setTticketState(request.getParameter("troubleTicketState"));

            event.setMouseOverText(request.getParameter("mouseOver"));

            // now save to the xml file
            try {
                EventConfFactory eventFactory = EventConfFactory.getInstance();
                eventFactory.saveEvent(event);
            } catch (XMLWriteException e) {
                throw new ServletException("Error writing the eventconf.xml file", e);
            } catch (Exception e) {
                throw new ServletException("Error saving event", e);
            }
        }

        // forward the request for proper display
        RequestDispatcher dispatcher = this.getServletContext().getRequestDispatcher(request.getParameter("redirect"));
        dispatcher.forward(request, response);
    }

    /**
     */
    private void parseCorrelationUEIs(String valuesBuffer, Correlation correlation) {
        if (valuesBuffer != null && !valuesBuffer.trim().equals("")) {
            StringTokenizer tokenizer = new StringTokenizer(valuesBuffer, "\n");

            while (tokenizer.hasMoreTokens()) {
                String value = tokenizer.nextToken();
                correlation.addCorrelationUEI(value.trim());
            }
        }
    }

    /**
     */
    private void parseLogGroups(String valuesBuffer, Event event) {
        event.clearLogGroups();

        if (valuesBuffer != null && !valuesBuffer.trim().equals("")) {
            StringTokenizer tokenizer = new StringTokenizer(valuesBuffer, "\n");

            while (tokenizer.hasMoreTokens()) {
                String value = tokenizer.nextToken();
                event.addLogGroup(value.trim());
            }
        }
    }

    /**
     */
    private void parseNotifications(String valuesBuffer, Event event) {
        event.clearNotifications();

        if (valuesBuffer != null && !valuesBuffer.trim().equals("")) {
            StringTokenizer tokenizer = new StringTokenizer(valuesBuffer, "\n");

            while (tokenizer.hasMoreTokens()) {
                String value = tokenizer.nextToken();
                event.addNotification(value.trim());
            }
        }
    }
}