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/*
* Copyright (C) 2012 The Android Open Source Project
*
* 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.android.loganalysis.parser;
import com.android.loganalysis.item.AnrItem;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* An {@link IParser} to handle ANRs.
*/
public class AnrParser implements IParser {
/**
* Matches: ANR (application not responding) in process: app
* Matches: ANR in app
* Matches: ANR in app (class/package)
*/
public static final Pattern START = Pattern.compile(
"^ANR (?:\\(application not responding\\) )?in (?:process: )?(\\S+).*$");
/**
* Matches: PID: 1234
*/
private static final Pattern PID = Pattern.compile("^PID: (\\d+)$");
/**
* Matches: Reason: reason
*/
private static final Pattern REASON = Pattern.compile("^Reason: (.*)$");
/**
* Matches: Load: 0.71 / 0.83 / 0.51
*/
private static final Pattern LOAD = Pattern.compile(
"^Load: (\\d+\\.\\d+) / (\\d+\\.\\d+) / (\\d+\\.\\d+)$");
/**
* Matches: 33% TOTAL: 21% user + 11% kernel + 0.3% iowait
*/
private static final Pattern TOTAL = Pattern.compile("^(\\d+(\\.\\d+)?)% TOTAL: .*$");
private static final Pattern USER = Pattern.compile("^.* (\\d+(\\.\\d+)?)% user.*$");
private static final Pattern KERNEL = Pattern.compile("^.* (\\d+(\\.\\d+)?)% kernel.*$");
private static final Pattern IOWAIT = Pattern.compile("^.* (\\d+(\\.\\d+)?)% iowait.*$");
/**
* {@inheritDoc}
*
* @return The {@link AnrItem}.
*/
@Override
public AnrItem parse(List<String> lines) {
AnrItem anr = null;
StringBuilder stack = new StringBuilder();
boolean matchedTotal = false;
for (String line : lines) {
Matcher m = START.matcher(line);
// Ignore all input until the start pattern is matched.
if (m.matches()) {
anr = new AnrItem();
anr.setApp(m.group(1));
}
if (anr != null) {
m = PID.matcher(line);
if (m.matches()) {
anr.setPid(Integer.valueOf(m.group(1)));
}
m = REASON.matcher(line);
if (m.matches()) {
anr.setReason(m.group(1));
}
m = LOAD.matcher(line);
if (m.matches()) {
anr.setLoad(AnrItem.LoadCategory.LOAD_1, Double.parseDouble(m.group(1)));
anr.setLoad(AnrItem.LoadCategory.LOAD_5, Double.parseDouble(m.group(2)));
anr.setLoad(AnrItem.LoadCategory.LOAD_15, Double.parseDouble(m.group(3)));
}
m = TOTAL.matcher(line);
if (!matchedTotal && m.matches()) {
matchedTotal = true;
anr.setCpuUsage(AnrItem.CpuUsageCategory.TOTAL, Double.parseDouble(m.group(1)));
m = USER.matcher(line);
Double usage = m.matches() ? Double.parseDouble(m.group(1)) : 0.0;
anr.setCpuUsage(AnrItem.CpuUsageCategory.USER, usage);
m = KERNEL.matcher(line);
usage = m.matches() ? Double.parseDouble(m.group(1)) : 0.0;
anr.setCpuUsage(AnrItem.CpuUsageCategory.KERNEL, usage);
m = IOWAIT.matcher(line);
usage = m.matches() ? Double.parseDouble(m.group(1)) : 0.0;
anr.setCpuUsage(AnrItem.CpuUsageCategory.IOWAIT, usage);
}
stack.append(line);
stack.append("\n");
}
}
if (anr != null) {
anr.setStack(stack.toString().trim());
}
return anr;
}
}
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