Profiler.java
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/*
* Decompiled with CFR 0_118.
*/
package com.adobe.granite.webconsole.plugins.impl;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import java.util.TreeSet;
public class Profiler
implements Runnable {
private static final String LINE_SEPARATOR = System.getProperty("line.separator", "\n");
private static final int MAX_ELEMENTS = 1000;
public int interval = 50;
public int depth = 16;
public boolean paused;
String[] ignoreLines = Profiler.arraySplit("", ',', true);
String[] ignorePackages = Profiler.arraySplit("java.", ',', true);
String[] ignoreThreads = Profiler.arraySplit("java.lang.Thread.dumpThreads,java.lang.Thread.getThreads,java.net.PlainSocketImpl.socketAccept,java.net.SocketInputStream.socketRead0,java.net.SocketOutputStream.socketWrite0,java.lang.UNIXProcess.waitForProcessExit,java.lang.Object.wait,java.lang.Thread.sleep,sun.awt.windows.WToolkit.eventLoop,sun.misc.Unsafe.park,dalvik.system.VMStack.getThreadStackTrace,dalvik.system.NativeStart.run", ',', true);
volatile boolean stop;
private HashMap<String, Integer> counts = new HashMap();
private HashMap<String, Integer> packages = new HashMap();
private int minCount = 1;
int total;
private Thread thread;
private long time;
public void startCollecting() {
this.thread = new Thread(this);
this.thread.setName("Profiler");
this.thread.setDaemon(true);
this.thread.start();
}
public void stopCollecting() {
this.stop = true;
if (this.thread != null) {
try {
this.thread.join();
}
catch (InterruptedException e) {
// empty catch block
}
this.thread = null;
}
}
@Override
public void run() {
this.time = System.currentTimeMillis();
while (!this.stop) {
try {
this.tick();
continue;
}
catch (Throwable t) {
// empty catch block
break;
}
}
this.time = System.currentTimeMillis() - this.time;
}
private void tick() {
if (this.interval > 0) {
if (this.paused) {
return;
}
try {
Thread.sleep(this.interval);
}
catch (Exception e) {
// empty catch block
}
}
Map<Thread, StackTraceElement[]> map = Thread.getAllStackTraces();
for (Map.Entry<Thread, StackTraceElement[]> entry : map.entrySet()) {
StackTraceElement[] dump;
Thread t = entry.getKey();
if (t.getState() != Thread.State.RUNNABLE || (dump = entry.getValue()) == null || dump.length == 0 || Profiler.startsWithAny(dump[0].toString(), this.ignoreThreads)) continue;
StringBuilder buff = new StringBuilder();
String last = null;
boolean packageCounts = false;
int j = 0;
for (int i = 0; i < dump.length && j < this.depth; ++i) {
String el = dump[i].toString();
if (el.equals(last) || Profiler.startsWithAny(el, this.ignoreLines)) continue;
last = el;
buff.append("at ").append(el);
if (!packageCounts && !Profiler.startsWithAny(el, this.ignorePackages)) {
int index;
char c;
packageCounts = true;
for (index = 0; index < el.length() && !Character.isUpperCase(c = el.charAt(index)) && c != '('; ++index) {
}
if (index > 0 && el.charAt(index - 1) == '.') {
--index;
}
String packageName = el.substring(0, index);
Profiler.increment(this.packages, packageName, 0);
while ((index = packageName.lastIndexOf(46)) >= 0) {
packageName = packageName.substring(0, index);
Profiler.increment(this.packages, packageName + ".*", 0);
}
buff.append('+');
}
buff.append(LINE_SEPARATOR);
++j;
}
if (buff.length() <= 0) continue;
this.minCount = Profiler.increment(this.counts, buff.toString().trim(), this.minCount);
++this.total;
}
}
private static boolean startsWithAny(String s, String[] prefixes) {
for (String p : prefixes) {
if (p.length() <= 0 || !s.startsWith(p)) continue;
return true;
}
return false;
}
private static int increment(HashMap<String, Integer> map, String trace, int minCount) {
Integer oldCount = map.get(trace);
if (oldCount == null) {
map.put(trace, 1);
} else {
map.put(trace, oldCount + 1);
}
while (map.size() > 1000) {
Iterator<Map.Entry<String, Integer>> ei = map.entrySet().iterator();
while (ei.hasNext()) {
Map.Entry<String, Integer> e = ei.next();
if (e.getValue() > minCount) continue;
ei.remove();
}
if (map.size() <= 1000) continue;
++minCount;
}
return minCount;
}
public String getTop(int count) {
this.stopCollecting();
StringBuilder buff = new StringBuilder();
buff.append("Profiler Results").append(LINE_SEPARATOR).append(LINE_SEPARATOR).append("Packages:").append(LINE_SEPARATOR);
for (String k : new TreeSet<String>(this.packages.keySet())) {
int percent = 100 * this.packages.get(k) / Math.max(this.total, 1);
if (percent < 5) continue;
if (percent < 10) {
buff.append('0');
}
buff.append(percent).append("%: ").append(k).append(LINE_SEPARATOR);
}
buff.append(LINE_SEPARATOR).append("Top ").append(count).append(" stack trace(s) of ").append(this.time).append(" ms ").append(LINE_SEPARATOR);
if (this.counts.size() == 0) {
buff.append("(none)");
}
Profiler.appendTop(buff, this.counts, count, this.total);
buff.append('.');
return buff.toString();
}
private static void appendTop(StringBuilder buff, HashMap<String, Integer> map, int count, int total) {
int x = 0;
int min = 0;
do {
int highest = 0;
Map.Entry<String, Integer> best = null;
for (Map.Entry<String, Integer> el : map.entrySet()) {
if (el.getValue() <= highest && (el.getValue() != highest || el.getKey().length() >= best.getKey().length())) continue;
best = el;
highest = el.getValue();
}
if (best == null) break;
map.remove(best.getKey());
if (++x >= count) {
if (best.getValue() < min) break;
min = best.getValue();
}
int c = best.getValue();
int percent = 100 * c / Math.max(total, 1);
buff.append(c).append('/').append(total).append(" (").append(percent).append("%):").append(LINE_SEPARATOR).append(best.getKey()).append(LINE_SEPARATOR);
} while (true);
}
public static String[] arraySplit(String s, char separatorChar, boolean trim) {
if (s == null) {
return null;
}
if (s.length() == 0) {
return new String[0];
}
ArrayList<String> list = new ArrayList<String>();
StringBuilder buff = new StringBuilder(s.length());
for (int i = 0; i < s.length(); ++i) {
char c = s.charAt(i);
if (c == separatorChar) {
String e = buff.toString();
list.add(trim ? e.trim() : e);
buff.setLength(0);
continue;
}
if (c == '\\' && i < s.length() - 1) {
buff.append(s.charAt(++i));
continue;
}
buff.append(c);
}
String e = buff.toString();
list.add(trim ? e.trim() : e);
String[] array = new String[list.size()];
list.toArray(array);
return array;
}
}