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// Copyright 2015 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.devtools.build.lib.profiler.output;
import com.google.common.base.Optional;
import com.google.devtools.build.lib.profiler.ProfileInfo;
import com.google.devtools.build.lib.profiler.ProfilePhase;
import com.google.devtools.build.lib.profiler.chart.AggregatingChartCreator;
import com.google.devtools.build.lib.profiler.chart.Chart;
import com.google.devtools.build.lib.profiler.chart.ChartCreator;
import com.google.devtools.build.lib.profiler.chart.DetailedChartCreator;
import com.google.devtools.build.lib.profiler.chart.HtmlChartVisitor;
import com.google.devtools.build.lib.profiler.statistics.PhaseStatistics;
import com.google.devtools.build.lib.profiler.statistics.PhaseSummaryStatistics;
import com.google.devtools.build.lib.profiler.statistics.SkylarkStatistics;
import com.google.devtools.build.lib.vfs.Path;
import java.io.BufferedOutputStream;
import java.io.IOException;
import java.io.PrintStream;
import java.util.EnumMap;
/**
* Creates an HTML page displaying the various statistics and charts generated
* from the profile file.
*/
public final class HtmlCreator extends HtmlPrinter {
private final Chart chart;
private final HtmlChartVisitor chartVisitor;
private final Optional<SkylarkHtml> skylarkStats;
private final String title;
private final PhaseHtml phases;
private HtmlCreator(
PrintStream out,
String title,
Chart chart,
Optional<SkylarkHtml> skylarkStats,
int htmlPixelsPerSecond,
PhaseHtml phases) {
super(out);
this.title = title;
this.chart = chart;
chartVisitor = new HtmlChartVisitor(out, htmlPixelsPerSecond);
this.skylarkStats = skylarkStats;
this.phases = phases;
}
private void print() {
htmlFrontMatter();
chart.accept(chartVisitor);
element("a", "name", "Statistics");
element("h2", "Statistics");
phases.print();
if (skylarkStats.isPresent()) {
skylarkStats.get().printHtmlBody();
}
htmlBackMatter();
}
private void htmlFrontMatter() {
lnOpen("html");
lnOpen("head");
lnElement("title", title);
chartVisitor.printCss(chart.getSortedTypes());
phases.printCss();
if (skylarkStats.isPresent()) {
skylarkStats.get().printHtmlHead();
}
lnClose();
lnOpen("body");
lnElement("h1", title);
}
private void htmlBackMatter() {
lnClose();
lnClose();
}
/**
* Writes the HTML profiling information.
*
* @throws IOException
*/
public static void create(
ProfileInfo info,
Path htmlFile,
PhaseSummaryStatistics phaseSummaryStats,
EnumMap<ProfilePhase, PhaseStatistics> statistics,
boolean detailed,
int htmlPixelsPerSecond,
int vfsStatsLimit)
throws IOException {
try (PrintStream out = new PrintStream(new BufferedOutputStream(htmlFile.getOutputStream()))) {
ChartCreator chartCreator;
PhaseHtml phaseHtml = new PhaseHtml(out, phaseSummaryStats, statistics, vfsStatsLimit);
Optional<SkylarkHtml> skylarkStats;
if (detailed) {
skylarkStats = Optional.of(new SkylarkHtml(out, new SkylarkStatistics(info)));
chartCreator = new DetailedChartCreator(info);
} else {
chartCreator = new AggregatingChartCreator(info);
skylarkStats = Optional.absent();
}
Chart chart = chartCreator.create();
new HtmlCreator(out, info.comment, chart, skylarkStats, htmlPixelsPerSecond, phaseHtml)
.print();
}
}
}
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