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CrashParser.java
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import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.io.Reader;
import java.util.ArrayList;
import java.util.Comparator;
import java.util.Collections;
public class CrashParser {
/**
* dump文件路径
*/
private String mDumpFilePath;
/**
* SO符号表路径
*/
private String mSymbolFilePath;
/**
* 统计报告中间文件输出路径
*/
private String mMiddleFilePath;
/**
* 统计报告输出路径
*/
private String mReportFilePath;
/**
* 详细的统计报告输出路径
*/
private String mDetailReportFilePath;
/**
* 无效日志路径
*/
private String mInvalidFilePath;
/**
* 统计报告中间文件输出流
*/
private PrintWriter mMidWriter;
/**
* 统计报告输出流
*/
private PrintWriter mReportWriter;
/**
* 详细的统计报告输出流
*/
private PrintWriter mDetailReportWriter;
/**
* 暂时禁止输出报告，和mReportWriter配合使用
*/
private boolean mDisableReportPrint;
/**
* java崩溃日志的总数量
*/
private int mJavaCrashCount;
/**
* C崩溃日志的总数量
*/
private int mCCrashCount;
/**
* 最多从mDumpFilePath文件读取多少条崩溃
*/
private int mCrashMax;
/**
* 一个崩溃日志为多行格式时，累加每行到此字符串
*/
private String mMutilineCrashString;
/**
* 崩溃组列表
*/
private ArrayList<CrashGroup> mCrashGroups = new ArrayList<CrashGroup>(); // 崩溃组列表
/**
* 无效的崩溃日志列表
*/
private ArrayList<CrashItem> mInvalidItems = new ArrayList<CrashItem>(); // 无效的崩溃日志列表
/**
* 统计报告是否输出到System.out
*/
private boolean mEnableStdOut; // 统计报告是否输出到System.out
/**
* mSymbolFilePath为null，却出现了C崩溃日志
*/
private boolean mWarnCCrash; // mSymbolFilePath为null，却出现了C崩溃日志
/**
* 报告输出目录
*/
private String mOutputDir; // 报告输出目录
/**
* 构建一个崩溃解析器。
* @param dumpFilePath dump文件路径。
* @param symbolFilePath SO符号表路径。
* @param crashMax 最多从mDumpFilePath文件读取多少条崩溃。
*/
public CrashParser(String dumpFilePath, String symbolFilePath, int crashMax) {
mSymbolFilePath = symbolFilePath;
mDumpFilePath = dumpFilePath;
mCrashMax = crashMax;
File file = new File(mDumpFilePath);
String dumpDir = file.getParent();
String dumpName = file.getName();
int index = dumpName.lastIndexOf(".");
if (index != -1) {
dumpName = dumpName.substring(0, index);
}
mOutputDir = new File(dumpDir, dumpName + "_crash_report").getAbsolutePath();
FileHelper.delete(mOutputDir);
new File(mOutputDir).mkdirs();
}
/**
* 解析日志，一条日志有可能是单行的(以\\n分隔)，也有可能是多行的。
* 解析器每次读取一行日志，判断日志类型.
* @throws java.io.IOException 如果发生IO异常
* @throws java.lang.InterruptedException 如果发生异常
*/
public void parseCrash() throws IOException, InterruptedException {
InputStream fin;
Reader fReader;
BufferedReader bReader;
fin = new FileInputStream(mDumpFilePath);
String encode = decideFileEncode(mDumpFilePath);
if (encode == null) {
encode = "utf-8";
} else if (encode == "unicode") {
fin.skip(2);
} else {
fin.skip(3);
}
fReader = new InputStreamReader(fin, encode);
bReader = new BufferedReader(fReader);
String line;
mMutilineCrashString = "";
while ((line = bReader.readLine()) != null) {
if (line.contains("\\n")) {
finishMutilineCrashString();
CrashItem crashItem = new CrashItem(line, false);
addCrash(crashItem);
} else {
if (line.startsWith("*** *** ***") || line.isEmpty()) {
finishMutilineCrashString();
}
if (!line.isEmpty()) {
mMutilineCrashString += line;
mMutilineCrashString += "\n";
}
}
if (mCrashMax != 0 && mJavaCrashCount + mCCrashCount >= mCrashMax) {
break;
}
}
if (mCrashMax == 0 || mJavaCrashCount + mCCrashCount < mCrashMax) {
finishMutilineCrashString();
}
bReader.close();
sortCrash();
printCrash(CrashType.JAVA_CRASH);
printCrash(CrashType.C_CRASH);
printInvalidCrash();
if (mWarnCCrash) {
System.out.println("warn: dump file contain c crash,but \"-sym\" param not special.");
}
}
/**
* 根据文件头，判断文件编码。
* @param filePath 判断文件编码
* @return 返回文件编码。
*/
private String decideFileEncode(String filePath) throws IOException {
byte buff[] = new byte[3];
FileInputStream in = null;
try {
in = new FileInputStream(filePath);
int readBytes = in.read(buff);
if (readBytes >= 2 && buff[0] == (byte) 0xFF && buff[1] == (byte) 0xFE) {
return "unicode";
} else if (readBytes >= 3 && buff[0] == (byte) 0xEF && buff[1] == (byte) 0xBB && buff[2] == (byte) 0xBF) {
return "utf-8";
}
} catch (IOException e) {
e.printStackTrace();
} finally {
if (in != null) {
in.close();
}
}
return null;
}
/**
* 完成多行崩溃。
*/
private void finishMutilineCrashString() throws IOException, InterruptedException {
if (mMutilineCrashString.isEmpty()) {
return;
}
CrashItem crashItem = new CrashItem(mMutilineCrashString, true);
addCrash(crashItem);
mMutilineCrashString = "";
}
/**
* 添加一个崩溃。
* @param crashItem 一个CrashItem.
*/
private void addCrash(CrashItem crashItem) throws IOException, InterruptedException {
if (crashItem.getCrashType() == CrashType.JAVA_CRASH) {
mJavaCrashCount++;
} else {
if (mSymbolFilePath == null) {
mWarnCCrash = true;
return;
}
mCCrashCount++;
}
System.out.println(String.format("正在解析第%d个日志...", mJavaCrashCount + mCCrashCount));
decodeCrash(crashItem);
if (!crashItem.isValid()) {
mInvalidItems.add(crashItem);
return;
}
CrashGroup crashGroup = findCrashGroup(crashItem);
if (crashGroup == null) {
mCrashGroups.add(new CrashGroup(crashItem));
} else {
crashGroup.addCrash(crashItem);
}
}
/**
* 找到CrashItem的在的崩溃组
* @param item 一个CrashItem.
* @return 如果找到，返回组，否则，返回null。
*/
private CrashGroup findCrashGroup(CrashItem item) {
for (int i = 0; i < mCrashGroups.size(); i++) {
if (mCrashGroups.get(i).matchCrash(item)) {
return mCrashGroups.get(i);
}
}
return null;
}
/**
* 排序崩溃。
*/
private void sortCrash() {
Collections.sort(mCrashGroups,new Comparator<CrashGroup>() {
@Override
public int compare(CrashGroup o1, CrashGroup o2) {
int o1Count = o1.getCrashCount();
int o2Count = o2.getCrashCount();
if (o1.getKeyword().isEmpty()) {
o1Count = 0;
}
if (o2.getKeyword().isEmpty()) {
o2Count = 0;
}
return o2Count - o1Count;
}
});
for (int i = 0; i < mCrashGroups.size(); i++) {
CrashGroup group = mCrashGroups.get(i);
group.sort();
}
}
/**
* 调用ndk-stack，解析崩溃日志。
*/
private void decodeCrash(CrashItem item) throws IOException, InterruptedException {
if (item.getCrashType() != CrashType.C_CRASH) {
return;
}
String command = String.format("ndk-stack -sym %s", mSymbolFilePath);
Process proc = Runtime.getRuntime().exec(command);
proc.getOutputStream().write(item.getMidCrashString().getBytes("utf-8"));
proc.getOutputStream().close();
BufferedReader reader = new BufferedReader(new InputStreamReader(proc.getInputStream(), "utf-8"));
String line = null;
ArrayList<String> crashLines = new ArrayList<String>();
while ((line = reader.readLine()) != null) {
crashLines.add(line);
}
item.setCSymbolCrashLines(crashLines);
}
/**
* 输出信息。
*/
private void printMessage(String msg) {
if (mMidWriter != null) {
mMidWriter.println(msg);
}
if (mReportWriter != null) {
if (!mDisableReportPrint) {
mReportWriter.println(msg);
}
}
if (mDetailReportWriter != null) {
mDetailReportWriter.println(msg);
}
if (mEnableStdOut) {
System.out.println(msg);
}
}
/**
* 创建崩溃日志输出流。
*/
private void createPrintStream(CrashType crashType) throws IOException {
String des = crashType == CrashType.JAVA_CRASH ? "java" : "c";
// mMiddleFilePath= new File(mOutputDir, des +
// "_mid.txt").getAbsolutePath();
mReportFilePath = new File(mOutputDir, des + "_report.txt").getAbsolutePath();
mDetailReportFilePath = new File(mOutputDir, des + "_detail_report.txt").getAbsolutePath();
if (mMiddleFilePath != null) {
mMidWriter = new PrintWriter(new FileWriter(mMiddleFilePath));
}
if (mReportFilePath != null) {
mReportWriter = new PrintWriter(new FileWriter(mReportFilePath));
}
if (mDetailReportFilePath != null) {
mDetailReportWriter = new PrintWriter(new FileWriter(mDetailReportFilePath));
}
}
/**
* 输出崩溃报表。
*/
private void printCrash(CrashType crashType) throws IOException {
ArrayList<CrashGroup> crashGroups = new ArrayList<>();
for (int i = 0; i < mCrashGroups.size(); i++) {
CrashGroup crashGroup = mCrashGroups.get(i);
if (crashGroup.getCrashType() == crashType) {
crashGroups.add(crashGroup);
}
}
if (crashGroups.isEmpty()) {
return;
}
createPrintStream(crashType);
String carshTypeDes = crashType == CrashType.JAVA_CRASH ? "java" : "C";
int crashCount = (crashType == CrashType.JAVA_CRASH ? mJavaCrashCount : mCCrashCount);
String msg = String.format("本次共分析%d个%s日志，分析后得到%d种崩溃", crashCount, carshTypeDes, crashGroups.size());
printMessage(msg);
printMessage("");
for (int i = 0; i < crashGroups.size(); i++) {
CrashGroup group = crashGroups.get(i);
msg = String.format(
"<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<开始崩溃组<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<");
printMessage(msg);
msg = String.format("崩溃编号:%d", i + 1);
printMessage(msg);
msg = String.format("崩溃触发函数:%s", group.getKeyword());
printMessage(msg);
msg = String.format("崩溃总次数:%d", group.getCrashCount());
printMessage(msg);
printMessage("崩溃关键函数:");
printMessage("崩溃分析:");
msg = ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>";
printMessage(msg);
for (int j = 0; j < group.size(); j++) {
if (j >= 2) {
mDisableReportPrint = true;
}
CrashItem crashItem = group.get(j);
msg = String.format("\t崩溃次数:%d", crashItem.getCrashCount());
printMessage(msg);
if (mMidWriter != null) {
mMidWriter.println(crashItem.getMidCrashString());
}
if (mReportWriter != null) {
if (j < 2) {
mReportWriter.println(crashItem.getSymbolCrashString());
}
}
if (mDetailReportWriter != null) {
mDetailReportWriter.println(crashItem.getSymbolCrashString());
}
if (mEnableStdOut) {
System.out.println(crashItem.getSymbolCrashString());
}
mDisableReportPrint = false;
}
if (mReportWriter != null) {
if (group.size() > 2) {
mReportWriter.print("\t...");
}
}
printMessage("\n\n");
}
if (mMidWriter != null) {
mMidWriter.close();
}
if (mReportWriter != null) {
mReportWriter.close();
}
if (mDetailReportWriter != null) {
mDetailReportWriter.close();
}
}
/**
* 输出无效的日志。
*/
private void printInvalidCrash() throws IOException {
if (mInvalidItems.size() == 0) {
return;
}
mInvalidFilePath = new File(mOutputDir, "invalid.txt").getAbsolutePath();
PrintWriter invalidWriter = new PrintWriter(new FileWriter(mInvalidFilePath));
invalidWriter.println(String.format("共有%d个无效日志.\n", mInvalidItems.size()));
for (int i = 0; i < mInvalidItems.size(); i++) {
CrashItem crashItem = mInvalidItems.get(i);
invalidWriter.println(crashItem.getOriginCrashString());
}
invalidWriter.close();
}
}