forked from I2P_Developers/i2p.i2p
233 lines
10 KiB
Java
233 lines
10 KiB
Java
package net.i2p.router.web;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.io.OutputStreamWriter;
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import java.io.Writer;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.Comparator;
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import java.util.List;
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import net.i2p.data.DataHelper;
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import net.i2p.router.Job;
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import net.i2p.router.JobStats;
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import net.i2p.util.ObjectCounter;
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public class JobQueueHelper extends HelperBase {
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private static final int MAX_JOBS = 50;
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public String getJobQueueSummary() {
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try {
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if (_out != null) {
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renderStatusHTML(_out);
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return "";
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} else {
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ByteArrayOutputStream baos = new ByteArrayOutputStream(32*1024);
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renderStatusHTML(new OutputStreamWriter(baos));
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return new String(baos.toByteArray());
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}
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} catch (IOException ioe) {
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ioe.printStackTrace();
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return "";
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}
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}
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/**
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* Moved from JobQueue
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* @since 0.8.9
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*/
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private void renderStatusHTML(Writer out) throws IOException {
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List<Job> readyJobs = new ArrayList<Job>(8);
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List<Job> timedJobs = new ArrayList<Job>(128);
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List<Job> activeJobs = new ArrayList<Job>(8);
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List<Job> justFinishedJobs = new ArrayList<Job>(8);
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int numRunners = _context.jobQueue().getJobs(readyJobs, timedJobs, activeJobs, justFinishedJobs);
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StringBuilder buf = new StringBuilder(32*1024);
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buf.append("<b><div class=\"joblog\"><h3>").append(_("I2P Job Queue")).append("</h3><br><div class=\"wideload\">")
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.append(_("Job runners")).append(": ").append(numRunners)
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.append("</b><br>\n");
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long now = _context.clock().now();
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buf.append("<hr><b>").append(_("Active jobs")).append(": ").append(activeJobs.size()).append("</b><ol>\n");
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for (int i = 0; i < activeJobs.size(); i++) {
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Job j = activeJobs.get(i);
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buf.append("<li>(").append(_("started {0} ago", DataHelper.formatDuration2(now-j.getTiming().getStartAfter()))).append("): ");
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buf.append(j.toString()).append("</li>\n");
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}
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buf.append("</ol>\n");
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buf.append("<hr><b>").append(_("Just finished jobs")).append(": ").append(justFinishedJobs.size()).append("</b><ol>\n");
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for (int i = 0; i < justFinishedJobs.size(); i++) {
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Job j = justFinishedJobs.get(i);
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buf.append("<li>(").append(_("finished {0} ago", DataHelper.formatDuration2(now-j.getTiming().getActualEnd()))).append("): ");
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buf.append(j.toString()).append("</li>\n");
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}
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buf.append("</ol>\n");
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buf.append("<hr><b>").append(_("Ready/waiting jobs")).append(": ").append(readyJobs.size()).append("</b><ol>\n");
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ObjectCounter<String> counter = new ObjectCounter<String>();
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for (int i = 0; i < readyJobs.size(); i++) {
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Job j = readyJobs.get(i);
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counter.increment(j.getName());
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if (i >= MAX_JOBS)
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continue;
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buf.append("<li>[waiting ");
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buf.append(DataHelper.formatDuration2(now-j.getTiming().getStartAfter()));
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buf.append("]: ");
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buf.append(j.toString()).append("</li>\n");
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}
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buf.append("</ol>\n");
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getJobCounts(buf, counter);
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out.write(buf.toString());
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buf.setLength(0);
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buf.append("<hr><b>").append(_("Scheduled jobs")).append(": ").append(timedJobs.size()).append("</b><ol>\n");
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long prev = Long.MIN_VALUE;
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counter.clear();
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for (int i = 0; i < timedJobs.size(); i++) {
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Job j = timedJobs.get(i);
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counter.increment(j.getName());
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if (i >= MAX_JOBS)
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continue;
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long time = j.getTiming().getStartAfter() - now;
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// translators: {0} is a job name, {1} is a time, e.g. 6 min
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buf.append("<li>").append(_("{0} will start in {1}", j.getName(), DataHelper.formatDuration2(time)));
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// debug, don't bother translating
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if (time < 0)
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buf.append(" <b>DELAYED</b>");
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if (time < prev)
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buf.append(" <b>** OUT OF ORDER **</b>");
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prev = time;
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buf.append("</li>\n");
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}
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buf.append("</ol></div>\n");
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getJobCounts(buf, counter);
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out.write(buf.toString());
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buf.setLength(0);
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buf.append("<hr><b>").append(_("Total Job Statistics")).append("</b>\n");
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getJobStats(buf);
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out.write(buf.toString());
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}
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/** @since 0.9.5 */
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private void getJobCounts(StringBuilder buf, ObjectCounter<String> counter) {
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List<String> names = new ArrayList<String>(counter.objects());
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if (names.size() < 4)
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return;
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buf.append("<table style=\"width: 30%; margin-left: 100px;\">\n" +
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"<tr><th>").append(_("Job")).append("</th><th>").append(_("Queued")).append("<th>");
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Collections.sort(names, new JobCountComparator(counter));
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for (String name : names) {
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buf.append("<tr><td>").append(name)
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.append("</td><td align=\"center\">").append(counter.count(name))
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.append("</td></tr>\n");
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}
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buf.append("</table>\n");
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}
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/**
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* Render the HTML for the job stats.
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* Moved from JobQueue
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* @since 0.8.9
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*/
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private void getJobStats(StringBuilder buf) {
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buf.append("<table>\n" +
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"<tr><th>").append(_("Job")).append("</th><th>").append(_("Runs")).append("</th>" +
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"<th>").append(_("Time")).append("</th><th><i>").append(_("Avg")).append("</i></th><th><i>")
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.append(_("Max")).append("</i></th><th><i>").append(_("Min")).append("</i></th>" +
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"<th>").append(_("Pending")).append("</th><th><i>").append(_("Avg")).append("</i></th><th><i>")
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.append(_("Max")).append("</i></th><th><i>").append(_("Min")).append("</i></th></tr>\n");
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long totRuns = 0;
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long totExecTime = 0;
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long avgExecTime = 0;
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long maxExecTime = -1;
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long minExecTime = -1;
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long totPendingTime = 0;
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long avgPendingTime = 0;
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long maxPendingTime = -1;
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long minPendingTime = -1;
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List<JobStats> tstats = new ArrayList<JobStats>(_context.jobQueue().getJobStats());
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Collections.sort(tstats, new JobStatsComparator());
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for (JobStats stats : tstats) {
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buf.append("<tr>");
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buf.append("<td><b>").append(stats.getName()).append("</b></td>");
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buf.append("<td align=\"right\">").append(stats.getRuns()).append("</td>");
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buf.append("<td align=\"right\">").append(DataHelper.formatDuration2(stats.getTotalTime())).append("</td>");
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buf.append("<td align=\"right\">").append(DataHelper.formatDuration2(stats.getAvgTime())).append("</td>");
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buf.append("<td align=\"right\">").append(DataHelper.formatDuration2(stats.getMaxTime())).append("</td>");
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buf.append("<td align=\"right\">").append(DataHelper.formatDuration2(stats.getMinTime())).append("</td>");
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buf.append("<td align=\"right\">").append(DataHelper.formatDuration2(stats.getTotalPendingTime())).append("</td>");
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buf.append("<td align=\"right\">").append(DataHelper.formatDuration2(stats.getAvgPendingTime())).append("</td>");
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buf.append("<td align=\"right\">").append(DataHelper.formatDuration2(stats.getMaxPendingTime())).append("</td>");
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buf.append("<td align=\"right\">").append(DataHelper.formatDuration2(stats.getMinPendingTime())).append("</td>");
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buf.append("</tr>\n");
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totRuns += stats.getRuns();
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totExecTime += stats.getTotalTime();
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if (stats.getMaxTime() > maxExecTime)
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maxExecTime = stats.getMaxTime();
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if ( (minExecTime < 0) || (minExecTime > stats.getMinTime()) )
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minExecTime = stats.getMinTime();
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totPendingTime += stats.getTotalPendingTime();
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if (stats.getMaxPendingTime() > maxPendingTime)
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maxPendingTime = stats.getMaxPendingTime();
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if ( (minPendingTime < 0) || (minPendingTime > stats.getMinPendingTime()) )
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minPendingTime = stats.getMinPendingTime();
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}
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if (totRuns != 0) {
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if (totExecTime != 0)
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avgExecTime = totExecTime / totRuns;
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if (totPendingTime != 0)
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avgPendingTime = totPendingTime / totRuns;
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}
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buf.append("<tr class=\"tablefooter\">");
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buf.append("<td><b>").append(_("Summary")).append("</b></td>");
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buf.append("<td align=\"right\">").append(totRuns).append("</td>");
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buf.append("<td align=\"right\">").append(DataHelper.formatDuration2(totExecTime)).append("</td>");
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buf.append("<td align=\"right\">").append(DataHelper.formatDuration2(avgExecTime)).append("</td>");
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buf.append("<td align=\"right\">").append(DataHelper.formatDuration2(maxExecTime)).append("</td>");
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buf.append("<td align=\"right\">").append(DataHelper.formatDuration2(minExecTime)).append("</td>");
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buf.append("<td align=\"right\">").append(DataHelper.formatDuration2(totPendingTime)).append("</td>");
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buf.append("<td align=\"right\">").append(DataHelper.formatDuration2(avgPendingTime)).append("</td>");
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buf.append("<td align=\"right\">").append(DataHelper.formatDuration2(maxPendingTime)).append("</td>");
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buf.append("<td align=\"right\">").append(DataHelper.formatDuration2(minPendingTime)).append("</td>");
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buf.append("</tr></table></div>\n");
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}
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/** @since 0.8.9 */
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private static class JobStatsComparator implements Comparator<JobStats> {
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public int compare(JobStats l, JobStats r) {
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return l.getName().compareTo(r.getName());
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}
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}
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/** @since 0.9.5 */
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private static class JobCountComparator implements Comparator<String> {
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private final ObjectCounter<String> _counter;
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public JobCountComparator(ObjectCounter<String> counter) {
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_counter = counter;
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}
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public int compare(String l, String r) {
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// reverse
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int lc = _counter.count(l);
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int rc = _counter.count(r);
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if (lc > rc)
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return -1;
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if (lc < rc)
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return 1;
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return l.compareTo(r);
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}
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}
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}
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