availcalculations.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/
//
// Tab Size = 8
//

package org.opennms.report.availability;

import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;
import java.util.Map;
import java.util.Set;
import java.util.TreeMap;

import org.opennms.core.utils.ThreadCategory;
import org.opennms.report.datablock.IfService;
import org.opennms.report.datablock.Interface;
import org.opennms.report.datablock.Node;
import org.opennms.report.datablock.OutageSince;
import org.opennms.report.datablock.OutageSvcTimesList;
import org.opennms.report.datablock.Service;

/**
 * AvailCalculations does all computations for all reports for a category. The
 * types include Last 30 days daily availability Last 30 days total availability
 * Last 30 days daily service availability Last Months Top 20 offenders Last
 * Months Top 20 Service outages Last N Months Availability Last Months Daily
 * Availability Last Months Total Availability Last Months Daily Service
 * Availability Month To Date Daily Availability Month To Date Total
 * Availability
 * 
 * @author <A HREF="mailto:[e-mail]">Jacinta Remedios </A>
 * @author <A HREF="http://www.oculan.com">Oculan </A>
 */
public class AvailCalculations extends Object {
    /**
     * The log4j category used to log debug messsages and statements.
     */
    private static final String LOG4J_CATEGORY = "OpenNMS.Report";

    /**
     * Castor object that holds all the information required for the generating
     * xml to be translated to the pdf.
     */
    private static Report m_report = null;

    /**
     * End time
     */
    private long m_endTime;

    /**
     * Services map
     */
    private Map m_services = null;

    /**
     * End time of the last month.
     */
    private long m_endLastMonthTime;

    /**
     * Number of days in the last month.
     */
    private int m_daysInLastMonth;

    /**
     * The time in milliseconds per day.
     */
    private static final long ROLLING_WINDOW = 86400000l;

    /**
     * Constant
     */
    private static final int THIRTY = 30;

    /**
     * Constant (Number of months)
     */
    private static final int NMONTHS = 12;

    /**
     * Nodes that match this category.
     */
    private List m_nodes;

    /**
     * Monitored Services for the category
     */
    private List m_monitoredServices;

    /**
     * Report Format
     */
    private String m_format;

    /**
     * This is used for the PDF Report generation
     */
    private int m_sectionIndex;

    /**
     * Constructor
     * 
     * @param nodes
     *            List of nodes
     * @param endTime
     *            End time ( end of yesterday in milliseconds)
     * @param lastMonthEndTime
     *            Last months end time (end of the last day of last month in
     *            milliseconds)
     * @param monitoredServices
     *            Monitored services belonging to the category.
     * @param report
     *            Castor Report class.
     * @param offenders
     *            Map of all offenders -- percent/(list of node) pairs
     * @param format
     *            Value can be "SVG / all"
     */
    public AvailCalculations(List nodes, long endTime, long lastMonthEndTime, List monitoredServices, Report report, TreeMap offenders, double warning, double normal, String comments, String name, String format, String monthFormat, int catIndex, int sectionIndex) {
        m_sectionIndex = sectionIndex;
        org.opennms.report.availability.Category category = new org.opennms.report.availability.Category();
        category.setWarning(warning);
        category.setNormal(normal);
        category.setCatComments(comments);
        category.setCatName(name);
        category.setCatIndex(catIndex);
        category.setNodeCount(nodes.size());
        int ipaddrCount = 0;
        int serviceCount = 0;

        ListIterator lstNode = (ListIterator) nodes.listIterator();
        while (lstNode.hasNext()) {
            Node tmpNode = (Node) lstNode.next();
            if (tmpNode != null) {
                ipaddrCount += tmpNode.getInterfaceCount();
                serviceCount += tmpNode.getServiceCount();
            }
        }
        category.setIpaddrCount(ipaddrCount);
        category.setServiceCount(serviceCount);

        org.opennms.report.availability.Categories categories = report.getCategories();
        ThreadCategory.setPrefix(LOG4J_CATEGORY);
        org.apache.log4j.Category log = ThreadCategory.getInstance(this.getClass());
        if (log.isDebugEnabled())
            log.debug("Inside AvailCalculations");

        m_monitoredServices = monitoredServices;
        m_endLastMonthTime = lastMonthEndTime;
        m_daysInLastMonth = getDaysForMonth(m_endLastMonthTime);
        m_report = report;

        m_nodes = nodes;
        m_format = format;
        m_endTime = endTime;
        String label;
        String descr;
        String period;

        // Please node the following 4 formats are displayed on the graphical
        // report.
        // (i) last12MoAvail
        // (ii) LastMonthsDailyAvailability
        // (iii) MonthToDateDailyAvailability
        // (iv) lastMoTop20offenders

        SimpleDateFormat fmt = new SimpleDateFormat("MM/dd/yyyy");
        if (log.isDebugEnabled())
            log.debug("Now computing last 12 months daily availability ");
        //
        // N Months Availability
        //
        label = AvailabilityConstants.NMONTH_TOTAL_LABEL;
        descr = AvailabilityConstants.NMONTH_TOTAL_DESCR;
        if (label == null || label.length() == 0)
            label = "The last 12 Months Availability";
        if (descr == null || descr.length() == 0)
            descr = "The last 12 Months Availability";
        CatSections catSections = new CatSections();
        lastNMonthsAvailability(NMONTHS, m_endLastMonthTime, catSections, label, descr);
        if (log.isDebugEnabled())
            log.debug("Computed lastNMonthsAvailability");

        //
        // Last Months Daily Availability
        //
        if (log.isDebugEnabled())
            log.debug("Now computing last months daily availability ");
        label = AvailabilityConstants.LAST_MONTH_DAILY_LABEL;
        descr = AvailabilityConstants.LAST_MONTH_DAILY_DESCR;
        if (label == null || label.length() == 0)
            label = "The last Months Daily Availability";
        if (descr == null || descr.length() == 0)
            descr = "Daily Average of svcs monitored and availability of svcs divided by the total svc minutes (last month)";
        if (monthFormat.equalsIgnoreCase("calendar")){
			lastCalMoDailyAvailability(m_daysInLastMonth, m_endLastMonthTime, catSections, label, descr, "LastMonthsDailyAvailability");
        }else {
        	lastMoDailyAvailability(m_daysInLastMonth, m_endLastMonthTime, catSections, label, descr, "LastMonthsDailyAvailability");
        }
		if (log.isDebugEnabled())
        log.debug("Computed lastNDaysDailyAvailability");

        //
        // Month To Date Daily Availability
        //
        if (log.isDebugEnabled())
            log.debug("Now computing  month to date daily availability ");
        label = AvailabilityConstants.LAST_MTD_DAILY_LABEL;
        descr = AvailabilityConstants.LAST_MTD_DAILY_DESCR;
        if (label == null || label.length() == 0)
            label = "Month To Date Daily Availability";
        if (descr == null || descr.length() == 0)
            descr = "Daily Average of svc monitored and availability of svcs div by total svc minutes of month frm 1st till date";
        Calendar calendar = new GregorianCalendar();
        calendar.setTime(new Date(m_endTime));
        int numDaysInMonth = calendar.get(Calendar.DAY_OF_MONTH);
		if (monthFormat.equalsIgnoreCase("calendar")){
			lastCalMTDDailyAvailability(numDaysInMonth, m_endTime, catSections, label, descr, "MonthToDateDailyAvailability");
		}else {
			lastMTDDailyAvailability(numDaysInMonth, m_endTime, catSections, label, descr, "MonthToDateDailyAvailability");
		}
        
        if (log.isDebugEnabled())
            log.debug("Computed lastNDaysDailyAvailability");

        //
        // Last Months Top Offenders
        //
        if (log.isDebugEnabled())
            log.debug("Now computing Last Months Top Offenders ");
        label = AvailabilityConstants.NOFFENDERS_LABEL;
        descr = AvailabilityConstants.NOFFENDERS_DESCR;
        if (label == null || label.length() == 0)
            label = "Last Months Top Offenders";
        if (descr == null || descr.length() == 0)
            descr = "This is the list of the worst available devices in the category for the last month";
        lastMoTopNOffenders(offenders, catSections, label, descr);
        if (log.isDebugEnabled())
            log.debug("Computed lastMoTopNOffenders ");

        //
        // Last N days Daily Availability
        //
        if (!format.equals("SVG")) {
            if (log.isDebugEnabled())
                log.debug("Now computing LAST_30_DAYS_DAILY_LABEL ");
            label = AvailabilityConstants.LAST_30_DAYS_DAILY_LABEL;
            descr = AvailabilityConstants.LAST_30_DAYS_DAILY_DESCR;
            if (label == null || label.length() == 0)
                label = "The last 30 Days Daily Availability";
            if (descr == null || descr.length() == 0)
                descr = "Daily average of svcs and dvcs monitored and their availability divided by total mins for 30days";
            lastNDaysDailyAvailability(THIRTY, m_endTime, catSections, label, descr, "Last30DaysDailyAvailability");
            if (log.isDebugEnabled())
                log.debug("Computed lastNDaysDailyAvailability");
        }

        //
        // N days total availability
        //
        if (!format.equals("SVG")) {
            if (log.isDebugEnabled())
                log.debug("Now computing LAST_30_DAYS_TOTAL_LABEL ");
            label = AvailabilityConstants.LAST_30_DAYS_TOTAL_LABEL;
            descr = AvailabilityConstants.LAST_30_DAYS_TOTAL_DESCR;
            if (label == null || label.length() == 0)
                label = "The last 30 Days Total Availability";
            if (descr == null || descr.length() == 0)
                descr = "Average of svcs monitored and availability of svcs divided by total svc minutes of the last 30 days";
            lastNDaysTotalAvailability(THIRTY, m_endTime, catSections, label, descr);
            if (log.isDebugEnabled())
                log.debug("Computed lastNDaysTotalAvailability");
        }

        //
        // Last Months Total Availability
        //
        if (!format.equals("SVG")) {
            if (log.isDebugEnabled())
                log.debug("Now computing LAST_MONTH_TOTAL_LABEL ");
            label = AvailabilityConstants.LAST_MONTH_TOTAL_LABEL;
            descr = AvailabilityConstants.LAST_MONTH_TOTAL_DESCR;
            if (label == null || label.length() == 0)
                label = "The last Months Total Availability";
            if (descr == null || descr.length() == 0)
                descr = "Average of svcs monitored and availability of svcs divided by the total svc minutes of the month";
            lastMoTotalAvailability(m_daysInLastMonth, m_endLastMonthTime, catSections, label, descr);
            if (log.isDebugEnabled())
                log.debug("Computed lastNDaysDailyAvailability");
        }

        //
        // Month To Date Total Availability