org.miloss.fgsms.services.rs.impl.reports.ws.ResponseTimeOverTime.java Source code

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Here is the source code for org.miloss.fgsms.services.rs.impl.reports.ws.ResponseTimeOverTime.java

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package org.miloss.fgsms.services.rs.impl.reports.ws;

import java.io.File;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.GregorianCalendar;
import java.util.List;
import javax.xml.ws.WebServiceContext;
import org.apache.log4j.Level;
import org.jfree.chart.ChartUtilities;
import org.jfree.chart.JFreeChart;
import org.jfree.data.time.Millisecond;
import org.jfree.data.time.TimeSeries;
import org.jfree.data.time.TimeSeriesCollection;
import org.miloss.fgsms.common.DBUtils;
import org.miloss.fgsms.common.UserIdentityUtil;
import org.miloss.fgsms.common.Utility;
import org.miloss.fgsms.services.interfaces.common.PolicyType;
import org.miloss.fgsms.services.interfaces.common.SecurityWrapper;
import org.miloss.fgsms.services.interfaces.common.TimeRange;
import static org.miloss.fgsms.services.rs.impl.Reporting.getFilePathDelimitor;
import org.miloss.fgsms.services.rs.impl.TimeSeriesContainer;
import org.miloss.fgsms.services.rs.impl.reports.BaseReportGenerator;

/**
 *
 * @author AO
 */
public class ResponseTimeOverTime extends BaseWebServiceReport {

    /**
     * {@inheritDoc}
     */
    @Override
    public String GetDisplayName() {
        return "Response Time Over Time";
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public String GetHtmlFormattedHelp() {
        return super.GetHtmlFormattedHelp()
                + "This represents the response time of a transactional web service, over time. For the chart X axis is time, Y axis is response time";
    }

    @Override
    public void generateReport(OutputStreamWriter data, List<String> urls, String path, List<String> files,
            TimeRange range, String currentuser, SecurityWrapper classification, WebServiceContext ctx)
            throws IOException {

        Connection con = Utility.getPerformanceDBConnection();
        try {
            PreparedStatement cmd = null;

            ResultSet rs = null;
            JFreeChart chart = null;
            data.append("<hr /><h2>").append(GetDisplayName()).append("</h2>");
            data.append(GetHtmlFormattedHelp() + "<br />");
            data.append(
                    "<table class=\"table table-hover\"><tr><th>URI</th><th>Average Response Time (ms)</th></tr>");

            TimeSeriesCollection col = new TimeSeriesCollection();
            for (int i = 0; i < urls.size(); i++) {
                if (!isPolicyTypeOf(urls.get(i), PolicyType.TRANSACTIONAL)) {
                    continue;
                }
                //https://github.com/mil-oss/fgsms/issues/112
                if (!UserIdentityUtil.hasReadAccess(currentuser, "getReport", urls.get(i), classification, ctx)) {
                    continue;
                }

                try {
                    String url = Utility.encodeHTML(BaseReportGenerator.getPolicyDisplayName(urls.get(i)));
                    data.append("<tr><td>").append(url).append("</td>");
                    double average = 0;
                    try {
                        cmd = con.prepareStatement(
                                "select avg(responsetimems) from rawdata where uri=? and utcdatetime > ? and utcdatetime < ?;");
                        cmd.setString(1, urls.get(i));
                        cmd.setLong(2, range.getStart().getTimeInMillis());
                        cmd.setLong(3, range.getEnd().getTimeInMillis());
                        rs = cmd.executeQuery();

                        if (rs.next()) {
                            average = rs.getDouble(1);

                        }
                    } catch (Exception ex) {
                        log.log(Level.WARN, null, ex);
                    } finally {
                        DBUtils.safeClose(rs);
                        DBUtils.safeClose(cmd);
                    }

                    data.append("<td>").append(format.format(average) + "").append("</td></tr>");

                    //ok now get the raw data....
                    TimeSeriesContainer tsc = new TimeSeriesContainer();
                    try {
                        cmd = con.prepareStatement(
                                "select responsetimems,utcdatetime  from rawdata where uri=? and utcdatetime > ? and utcdatetime < ?;");
                        cmd.setString(1, urls.get(i));
                        cmd.setLong(2, range.getStart().getTimeInMillis());
                        cmd.setLong(3, range.getEnd().getTimeInMillis());
                        rs = cmd.executeQuery();
                        while (rs.next()) {
                            TimeSeries ts2 = tsc.Get(url, Millisecond.class);
                            GregorianCalendar gcal = new GregorianCalendar();
                            gcal.setTimeInMillis(rs.getLong(2));
                            Millisecond m = new Millisecond(gcal.getTime());
                            ts2.addOrUpdate(m, rs.getLong("responsetimems"));
                        }
                    } catch (Exception ex) {
                        log.log(Level.WARN, null, ex);
                    } finally {
                        DBUtils.safeClose(rs);
                        DBUtils.safeClose(cmd);
                    }
                    for (int ik = 0; ik < tsc.data.size(); ik++) {
                        col.addSeries(tsc.data.get(ik));
                    }

                } catch (Exception ex) {
                    log.log(Level.ERROR, "Error opening or querying the database.", ex);
                }

            }
            chart = org.jfree.chart.ChartFactory.createTimeSeriesChart(GetDisplayName(), "Timestamp", "Time in ms",
                    col, true, false, false);

            data.append("</table>");

            try {
                ChartUtilities.saveChartAsPNG(new File(
                        path + getFilePathDelimitor() + "image_" + this.getClass().getSimpleName() + ".png"), chart,
                        1500, 400);
                data.append("<img src=\"image_").append(this.getClass().getSimpleName()).append(".png\">");
                files.add(path + getFilePathDelimitor() + "image_" + this.getClass().getSimpleName() + ".png");
            } catch (IOException ex) {
                log.log(Level.ERROR, "Error saving chart image for request", ex);
            }
        } catch (Exception ex) {
            log.log(Level.ERROR, null, ex);
        } finally {
            DBUtils.safeClose(con);
        }
    }
}