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com.adrninistrator.javacg2.handler.MethodHandler4Invoke Maven / Gradle / Ivy
package com.adrninistrator.javacg2.handler;
import com.adrninistrator.javacg2.common.JavaCG2CommonNameConstants;
import com.adrninistrator.javacg2.common.JavaCG2Constants;
import com.adrninistrator.javacg2.common.TypeConstants;
import com.adrninistrator.javacg2.common.enums.JavaCG2CallTypeEnum;
import com.adrninistrator.javacg2.common.enums.JavaCG2CalleeObjTypeEnum;
import com.adrninistrator.javacg2.common.enums.JavaCG2MethodCallInfoTypeEnum;
import com.adrninistrator.javacg2.common.enums.JavaCG2YesNoEnum;
import com.adrninistrator.javacg2.conf.JavaCG2ConfInfo;
import com.adrninistrator.javacg2.dto.call.MethodCall;
import com.adrninistrator.javacg2.dto.call.MethodCallList;
import com.adrninistrator.javacg2.dto.call.MethodCallPossibleEntry;
import com.adrninistrator.javacg2.dto.call.MethodCallPossibleInfo;
import com.adrninistrator.javacg2.dto.call.MethodCallPossibleList;
import com.adrninistrator.javacg2.dto.counter.JavaCG2Counter;
import com.adrninistrator.javacg2.dto.exception.CatchAndFinallyInfo;
import com.adrninistrator.javacg2.dto.exception.CatchInfo;
import com.adrninistrator.javacg2.dto.exception.FinallyInfo;
import com.adrninistrator.javacg2.dto.exception.ThrowInfo;
import com.adrninistrator.javacg2.dto.exception.ThrowInfoList;
import com.adrninistrator.javacg2.dto.field.FieldTypeAndName;
import com.adrninistrator.javacg2.dto.field.StaticFieldTypeAndName;
import com.adrninistrator.javacg2.dto.fieldrelationship.GetSetFieldRelationship;
import com.adrninistrator.javacg2.dto.instruction.InvokeInstructionPosAndCallee;
import com.adrninistrator.javacg2.dto.jar.ClassAndJarNum;
import com.adrninistrator.javacg2.dto.method.JavaCG2MethodInfo;
import com.adrninistrator.javacg2.exceptions.JavaCG2RuntimeException;
import com.adrninistrator.javacg2.extensions.annotationattributes.AnnotationAttributesFormatterInterface;
import com.adrninistrator.javacg2.extensions.codeparser.MethodAnnotationParser;
import com.adrninistrator.javacg2.extensions.manager.ExtensionsManager;
import com.adrninistrator.javacg2.spring.UseSpringBeanByAnnotationHandler;
import com.adrninistrator.javacg2.util.JavaCG2AnnotationUtil;
import com.adrninistrator.javacg2.util.JavaCG2BootstrapMethodUtil;
import com.adrninistrator.javacg2.util.JavaCG2ByteCodeUtil;
import com.adrninistrator.javacg2.util.JavaCG2ClassMethodUtil;
import com.adrninistrator.javacg2.util.JavaCG2FileUtil;
import com.adrninistrator.javacg2.util.JavaCG2InstructionUtil;
import com.adrninistrator.javacg2.util.JavaCG2Util;
import org.apache.bcel.Const;
import org.apache.bcel.classfile.AnnotationEntry;
import org.apache.bcel.classfile.BootstrapMethod;
import org.apache.bcel.classfile.Constant;
import org.apache.bcel.classfile.ConstantInvokeDynamic;
import org.apache.bcel.classfile.JavaClass;
import org.apache.bcel.classfile.LineNumber;
import org.apache.bcel.classfile.Method;
import org.apache.bcel.classfile.ParameterAnnotationEntry;
import org.apache.bcel.classfile.Utility;
import org.apache.bcel.generic.CHECKCAST;
import org.apache.bcel.generic.CodeExceptionGen;
import org.apache.bcel.generic.GETSTATIC;
import org.apache.bcel.generic.GotoInstruction;
import org.apache.bcel.generic.INVOKEDYNAMIC;
import org.apache.bcel.generic.INVOKEINTERFACE;
import org.apache.bcel.generic.INVOKESPECIAL;
import org.apache.bcel.generic.INVOKESTATIC;
import org.apache.bcel.generic.INVOKEVIRTUAL;
import org.apache.bcel.generic.IfInstruction;
import org.apache.bcel.generic.Instruction;
import org.apache.bcel.generic.InstructionHandle;
import org.apache.bcel.generic.InstructionList;
import org.apache.bcel.generic.InvokeInstruction;
import org.apache.bcel.generic.MethodGen;
import org.apache.bcel.generic.ObjectType;
import org.apache.bcel.generic.Type;
import org.apache.commons.lang3.ArrayUtils;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.io.Writer;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
/**
* @author adrninistrator
* @date 2021/8/21
* @description: 对方法进行处理，用于处理方法调用指令
*/
public class MethodHandler4Invoke extends AbstractMethodHandler {
private static final Logger logger = LoggerFactory.getLogger(MethodHandler4Invoke.class);
private final String callerMethodArgTypes;
private final UseSpringBeanByAnnotationHandler useSpringBeanByAnnotationHandler;
private final JavaCG2Counter callIdCounter;
protected final InstructionList instructionList;
// 保存方法之间调用关系
private final MethodCallList methodCallList;
// 当前类是否为内部类
private final boolean innerAnonymousClassFlag;
/*
保存方法调用可能的信息
key
方法调用ID
value
方法调用可能的信息
*/
private final Map methodCallInfoMap = new HashMap<>(10);
private MethodHandler4TypeAndValue methodHandler4TypeAndValue;
private Map runnableImplClassMap;
private Map callableImplClassMap;
private Map transactionCallbackImplClassMap;
private Map transactionCallbackWithoutResultChildClassMap;
private Map threadChildClassMap;
private ExtensionsManager extensionsManager;
private AnnotationAttributesFormatterInterface annotationAttributesFormatter;
private Writer methodCallWriter;
private Writer lambdaMethodInfoWriter;
private Writer methodAnnotationWriter;
private Writer methodArgAnnotationWriter;
private Writer methodLineNumberWriter;
private Writer methodCallInfoWriter;
private Writer methodCallMethodCallReturnWriter;
private Writer methodCallStaticFieldWriter;
private Writer methodReturnArgSeqWriter;
private Writer methodReturnCallIdWriter;
private Writer methodCatchWriter;
private Writer methodFinallyWriter;
private Writer methodThrowWriter;
private Writer staticFinalFieldMethodCallIdWriter;
private Writer fieldRelationshipWriter;
private int lastJarNum;
// 是否出现方法名+参数类型均相同的方法标记
private boolean existsSameMethodNameAndArgs;
private ClassAndJarNum classAndJarNum;
/*
方法调用指令位置与call_id对应关系Map
key 方法调用指令的position
value 方法调用指令的call_id
*/
private Map invokeInstructionPositionCallIdMap;
/*
记录当前类的static、final字段名称及对应的类型的Map
key 当前类的static、final字段名称
value 当前类的static、final字段类型
*/
private Map staticFinalFieldNameTypeMap;
public MethodHandler4Invoke(Method method,
MethodGen mg,
JavaClass javaClass,
JavaCG2ConfInfo javaCG2ConfInfo,
String callerMethodArgTypes,
String callerFullMethod,
UseSpringBeanByAnnotationHandler useSpringBeanByAnnotationHandler,
JavaCG2Counter callIdCounter) {
super(method, mg, javaClass, callerFullMethod, javaCG2ConfInfo);
this.callerMethodArgTypes = callerMethodArgTypes;
this.useSpringBeanByAnnotationHandler = useSpringBeanByAnnotationHandler;
this.callIdCounter = callIdCounter;
instructionList = mg.getInstructionList();
methodCallList = new MethodCallList(callIdCounter);
innerAnonymousClassFlag = JavaCG2ByteCodeUtil.checkInnerAnonymousClass(javaClass);
}
// 初始化
@Override
protected void init() {
if (parseMethodCallTypeValueFlag) {
methodReturnArgSeqList = new ArrayList<>(1);
methodReturnPositionList = new ArrayList<>(1);
methodReturnArgSeqEQCList = new ArrayList<>(1);
methodReturnPositionEQCList = new ArrayList<>(1);
getSetFieldRelationshipList = new ArrayList<>();
}
}
/**
* 方法预处理
*
* @return false: 方法不需要继续处理 true: 方法需要继续处理
*/
@Override
protected boolean preHandleMethod() throws IOException {
if (!existsSameMethodNameAndArgs) {
/*
对于方法名+参数类型相同的方法，不进行以下处理
1. 避免出现方法上的重复注解
2. 避免出现方法对应行号信息重复记录
*/
// 记录方法上的注解信息
JavaCG2AnnotationUtil.writeAnnotationInfo(methodAnnotationWriter,
method.getAnnotationEntries(),
annotationAttributesFormatter,
callerFullMethod);
// 记录方法参数上的注解信息
ParameterAnnotationEntry[] parameterAnnotationEntries = method.getParameterAnnotationEntries();
if (ArrayUtils.isNotEmpty(parameterAnnotationEntries)) {
for (int i = 0; i < parameterAnnotationEntries.length; i++) {
ParameterAnnotationEntry parameterAnnotationEntry = parameterAnnotationEntries[i];
if (parameterAnnotationEntry == null) {
continue;
}
JavaCG2AnnotationUtil.writeAnnotationInfo(methodArgAnnotationWriter,
parameterAnnotationEntry.getAnnotationEntries(),
annotationAttributesFormatter,
callerFullMethod,
String.valueOf(i));
}
}
// 处理方法的行号信息
handleLineNumber(callerFullMethod);
}
// 处理方法注解，需要在此执行，否则接口方法上的注解不会被处理
handleMethodAnnotations();
// 初始化当前处理的指令
ih = JavaCG2InstructionUtil.getFirstInstructionHandle(mg);
// 若方法中指令为空，不需要再判断方法是否为abstract或native
return ih != null;
}
@Override
protected boolean doHandleMethod() throws IOException {
if (parseMethodCallTypeValueFlag) {
// 需要获取方法调用指令对应的类型与值
methodHandler4TypeAndValue = new MethodHandler4TypeAndValue(method, mg, javaClass, callerFullMethod, javaCG2ConfInfo);
methodHandler4TypeAndValue.setFailCounter(failCounter);
methodHandler4TypeAndValue.setParseMethodCallTypeValueFlag(true);
methodHandler4TypeAndValue.setGetMethodWriter(getMethodWriter);
methodHandler4TypeAndValue.setSetMethodWriter(setMethodWriter);
methodHandler4TypeAndValue.setFieldGenericsTypeWriter(fieldGenericsTypeWriter);
methodHandler4TypeAndValue.setRecordedSetMethodSet(recordedSetMethodSet);
methodHandler4TypeAndValue.setNonStaticFieldNameTypeMap(nonStaticFieldNameTypeMap);
methodHandler4TypeAndValue.setNonStaticFieldNameGenericsTypeMap(nonStaticFieldNameGenericsTypeMap);
methodHandler4TypeAndValue.setRecordedFieldWithGenericsTypeSet(recordedFieldWithGenericsTypeSet);
methodHandler4TypeAndValue.setMethodReturnArgSeqList(methodReturnArgSeqList);
methodHandler4TypeAndValue.setMethodReturnPositionList(methodReturnPositionList);
methodHandler4TypeAndValue.setMethodReturnArgSeqEQCList(methodReturnArgSeqEQCList);
methodHandler4TypeAndValue.setMethodReturnPositionEQCList(methodReturnPositionEQCList);
methodHandler4TypeAndValue.setOnlyAnalyseReturnTypeFlag(false);
if (inClinitMethod) {
methodHandler4TypeAndValue.setInClinitMethod(true);
methodHandler4TypeAndValue.setSfFieldInvokeInstructionMap(sfFieldInvokeInstructionMap);
}
if (javaCG2ConfInfo.isFirstParseInitMethodType()) {
// 处理类的方法前需要先解析构造函数以非静态字段可能的类型
methodHandler4TypeAndValue.setRecordFieldPossibleTypeFlag(false);
methodHandler4TypeAndValue.setUseFieldPossibleTypeFlag(true);
methodHandler4TypeAndValue.setNonStaticFieldPossibleTypes(nonStaticFieldPossibleTypes);
}
if (javaCG2ConfInfo.isAnalyseFieldRelationship()) {
// 需要分析dto的字段之间的关联关系
methodHandler4TypeAndValue.setAnalyseFieldRelationshipFlag(true);
methodHandler4TypeAndValue.setFieldRelationshipCounter(fieldRelationshipCounter);
methodHandler4TypeAndValue.setGetSetFieldRelationshipList(getSetFieldRelationshipList);
}
// 获取方法调用指令对应的类型与值
if (!methodHandler4TypeAndValue.handleMethod()) {
return false;
}
// 在遍历指令之前创建
invokeInstructionPositionCallIdMap = new HashMap<>();
}
// 遍历指令
do {
short opCode = ih.getInstruction().getOpcode();
if (JavaCG2InstructionUtil.isMethodInvokeInstruction(opCode)) {
// 处理方法调用指令
MethodCallPossibleInfo methodCallPossibleInfo = null;
if (methodHandler4TypeAndValue != null) {
// 获取方法调用指令对应的类型与值
methodCallPossibleInfo = methodHandler4TypeAndValue.getMethodCallPossibleInfo(ih.getPosition());
}
handleInvokeInstruction(methodCallPossibleInfo);
} else if (Const.ATHROW == opCode) {
if (methodHandler4TypeAndValue != null) {
ThrowInfoList throwInfoList = methodHandler4TypeAndValue.getMethodThrowPossibleInfo(ih.getPosition());
if (throwInfoList != null) {
// 处理ATHROW指令
handleATHROW(throwInfoList);
}
}
}
ih = ih.getNext();
} while (ih != null);
return true;
}
@Override
protected boolean lastStep() throws IOException {
// 处理方法之间调用关系
for (MethodCall methodCall : methodCallList.getMethodCallList()) {
String calleeClassJarNum = classAndJarNum.getJarNum(methodCall.getCalleeClassName());
JavaCG2FileUtil.write2FileWithTab(methodCallWriter, methodCall.genMethodCallContent(String.valueOf(lastJarNum), calleeClassJarNum));
if (parseMethodCallTypeValueFlag) {
// 处理方法调用可能的信息
handleMethodCallPossibleInfo(methodCall, methodCallInfoMap.get(methodCall.getCallId()));
}
}
if (parseMethodCallTypeValueFlag) {
// 记录方法返回值对应的方法参数序号
for (Integer methodReturnArgSeq : methodReturnArgSeqList) {
JavaCG2FileUtil.write2FileWithTab(methodReturnArgSeqWriter, callerFullMethod, String.valueOf(methodReturnArgSeq), JavaCG2YesNoEnum.NO.getStrValue());
}
// 记录方法返回值对应的方法调用ID
for (Integer methodReturnPosition : methodReturnPositionList) {
Integer methodReturnCallId = getInvokeInstructionCallId(methodReturnPosition);
JavaCG2FileUtil.write2FileWithTab(methodReturnCallIdWriter, callerFullMethod, String.valueOf(methodReturnCallId), JavaCG2YesNoEnum.NO.getStrValue());
}
// 记录等值转换前方法返回值对应的方法参数序号
for (Integer methodReturnArgSeqEQC : methodReturnArgSeqEQCList) {
if (!methodReturnArgSeqList.contains(methodReturnArgSeqEQC)) {
// 等值转换前的方法参数序号，若在非等值转换的情况下也存在则不写入，避免重复
JavaCG2FileUtil.write2FileWithTab(methodReturnArgSeqWriter, callerFullMethod, String.valueOf(methodReturnArgSeqEQC), JavaCG2YesNoEnum.YES.getStrValue());
}
}
// 记录等值转换前方法返回值对应的方法调用ID
for (Integer methodReturnPositionEQC : methodReturnPositionEQCList) {
if (!methodReturnPositionList.contains(methodReturnPositionEQC)) {
// 等值转换前的方法调用ID，若在非等值转换的情况下也存在则不写入，避免重复
Integer methodReturnCallIdEQC = getInvokeInstructionCallId(methodReturnPositionEQC);
JavaCG2FileUtil.write2FileWithTab(methodReturnCallIdWriter, callerFullMethod, String.valueOf(methodReturnCallIdEQC), JavaCG2YesNoEnum.YES.getStrValue());
}
}
if (inClinitMethod && !sfFieldInvokeInstructionMap.isEmpty()) {
// 记录当前类的static、final字段名称及初始化方法call_id
List staticFinalFieldNameList = new ArrayList<>(sfFieldInvokeInstructionMap.keySet());
Collections.sort(staticFinalFieldNameList);
for (String staticFinalFieldName : staticFinalFieldNameList) {
String staticFinalFieldType = staticFinalFieldNameTypeMap.get(staticFinalFieldName);
if (JavaCG2Util.checkSkipClass(staticFinalFieldType, javaCG2ConfInfo.getNeedHandlePackageSet())) {
// 假如static、final字段类型不需要处理，则不记录到文件
continue;
}
List invokeInstructionPosAndCalleeList = sfFieldInvokeInstructionMap.get(staticFinalFieldName);
for (int i = 0; i < invokeInstructionPosAndCalleeList.size(); i++) {
InvokeInstructionPosAndCallee invokeInstructionPosAndCallee = invokeInstructionPosAndCalleeList.get(i);
if (JavaCG2Util.checkSkipClass(invokeInstructionPosAndCallee.getCalleeClassName(), javaCG2ConfInfo.getNeedHandlePackageSet())) {
// 假如static、final字段初始化方法被调用类名不需要处理，则不记录到文件
continue;
}
// 根据方法调用指令位置查找对应的call_id
Integer sffMethodCallId = getInvokeInstructionCallId(invokeInstructionPosAndCallee.getInvokeInstructionPosition());
JavaCG2FileUtil.write2FileWithTab(staticFinalFieldMethodCallIdWriter, callerClassName, staticFinalFieldName, String.valueOf(i),
String.valueOf(sffMethodCallId), staticFinalFieldType, invokeInstructionPosAndCallee.getCalleeClassName(),
invokeInstructionPosAndCallee.getCalleeMethodName());
}
}
}
// 记录通过get/set方法关联的字段关系到文件
for (GetSetFieldRelationship getSetFieldRelationship : getSetFieldRelationshipList) {
int getMethodCallId = getInvokeInstructionCallId(getSetFieldRelationship.getGetInvokeInstructionPosition());
int setMethodCallId = getInvokeInstructionCallId(getSetFieldRelationship.getSetInvokeInstructionPosition());
JavaCG2FileUtil.write2FileWithTab(fieldRelationshipWriter,
String.valueOf(getSetFieldRelationship.getRecordId()),
String.valueOf(getMethodCallId),
String.valueOf(setMethodCallId),
callerFullMethod,
String.valueOf(getSetFieldRelationship.getCallerLineNumber()),
getSetFieldRelationship.getGetClassName(),
getSetFieldRelationship.getGetMethodName(),
getSetFieldRelationship.getSetClassName(),
getSetFieldRelationship.getSetMethodName(),
getSetFieldRelationship.getValid(),
getSetFieldRelationship.getType().getType());
}
}
// 记录异常处理信息
recordExceptionInfo();
return true;
}
// 处理方法的行号信息
private void handleLineNumber(String callerFullMethod) throws IOException {
if (lineNumberTable == null) {
return;
}
LineNumber[] lineNumbers = lineNumberTable.getLineNumberTable();
if (lineNumbers == null || lineNumbers.length == 0) {
return;
}
int minLineNumber = lineNumbers[0].getLineNumber();
int maxLineNumber;
if (lineNumbers.length == 1) {
maxLineNumber = minLineNumber;
} else {
maxLineNumber = lineNumbers[lineNumbers.length - 1].getLineNumber();
// https://github.com/Adrninistrator/java-callgraph2/pull/44/commits/75f41e71dbe43103b673ab296f0d42bda537cd42
// 寻找行号中的最大值
for (LineNumber lineNumber : lineNumbers) {
int sourceLineNumber = lineNumber.getLineNumber();
if (maxLineNumber < sourceLineNumber) {
maxLineNumber = sourceLineNumber;
}
}
}
// 记录方法起始代码行号
JavaCG2FileUtil.write2FileWithTab(methodLineNumberWriter, callerFullMethod, String.valueOf(minLineNumber), String.valueOf(maxLineNumber));
}
// 记录异常处理信息
private void recordExceptionInfo() throws IOException {
if (!parseMethodCallTypeValueFlag) {
// 以下处理需要使用方法调用中被调用对象与参数的类型与值，假如开关未打开则不记录异常处理相关信息
return;
}
CodeExceptionGen[] codeExceptionGens = mg.getExceptionHandlers();
if (codeExceptionGens.length <= 0) {
return;
}
// 记录catch信息的列表
List catchInfoList = new ArrayList<>();
// 记录catch开始偏移量的Set
Set catchFromPositionSet = new HashSet<>();
/*
记录try、catch、finally信息的Map
key try的开始指令偏移
value try对应的catch、finally信息
*/
Map tryInfoMap = new HashMap<>();
// 记录finally信息的列表
List finallyInfoList = new ArrayList<>();
/*
记录catch、finally信息的Map
key catch的开始指令偏移
value catch对应的finally信息
*/
Map catchFinallyInfoMap = new HashMap<>();
// 记录上一条处理的catch信息
CatchInfo lastCatchInfo = null;
for (CodeExceptionGen codeExceptionGen : codeExceptionGens) {
int fromPosition = codeExceptionGen.getStartPC().getPosition();
// BCEL的CodeExceptionGen的end的下一个指令，对应Exception table的to
int toPosition = codeExceptionGen.getEndPC().getNext().getPosition();
// BCEL的CodeExceptionGen的end，对应Exception table的to的上一个指令
int endPosition = codeExceptionGen.getEndPC().getPosition();
int targetPosition = codeExceptionGen.getHandlerPC().getPosition();
if (fromPosition == targetPosition) {
// 假如from与target的偏移量相同则不处理
continue;
}
if (endPosition == targetPosition) {
// 假如end与target的偏移量相同，则end使用end前一个指令的偏移
endPosition = codeExceptionGen.getEndPC().getPrev().getPosition();
}
ObjectType catchExceptionType = codeExceptionGen.getCatchType();
boolean isFinally = (catchExceptionType == null);
CatchAndFinallyInfo catchAndFinallyInfo = tryInfoMap.computeIfAbsent(fromPosition, k -> new CatchAndFinallyInfo());
if (!isFinally) {
// catch信息
String catchExceptionTypeString = catchExceptionType.getClassName();
if (lastCatchInfo != null && lastCatchInfo.getTargetPosition() == targetPosition) {
// 当前的catch信息与上一条catch的开始指令偏移量相同，则不创建新的catch信息，向上一条catch信息的异常类型中添加记录
lastCatchInfo.addCatchExceptionType(catchExceptionTypeString);
} else {
CatchInfo catchInfo = new CatchInfo(fromPosition, toPosition, endPosition, targetPosition, catchExceptionTypeString);
catchInfoList.add(catchInfo);
catchFromPositionSet.add(targetPosition);
catchAndFinallyInfo.getCatchInfoList().add(catchInfo);
lastCatchInfo = catchInfo;
}
} else {
// finally信息
FinallyInfo finallyInfo = new FinallyInfo(fromPosition, toPosition, endPosition, targetPosition);
finallyInfoList.add(finallyInfo);
catchAndFinallyInfo.setFinallyInfo(finallyInfo);
if (catchFromPositionSet.contains(fromPosition)) {
catchFinallyInfoMap.put(fromPosition, finallyInfo);
}
// 处理finally信息，把上一条catch信息清空
lastCatchInfo = null;
}
}
// 将catch信息写入文件
for (CatchInfo catchInfo : catchInfoList) {
// 获取catch代码块的结束偏移量
int catchEndPosition = getCatchEndPosition(catchInfo, catchFinallyInfoMap, tryInfoMap);
int tryStartLineNumber = getSourceLine(catchInfo.getFromPosition());
int tryEndLineNumber = getSourceLine(catchInfo.getEndPosition());
int tryMinCallId = getMinCallId(catchInfo.getFromPosition(), catchInfo.getEndPosition());
int tryMaxCallId = getMaxCallId(catchInfo.getFromPosition(), catchInfo.getEndPosition());
int catchStartLineNumber = getSourceLine(catchInfo.getTargetPosition());
int catchEndLineNumber = getSourceLine(catchEndPosition);
int catchMinCallId = getMinCallId(catchInfo.getTargetPosition(), catchEndPosition);
int catchMaxCallId = getMaxCallId(catchInfo.getTargetPosition(), catchEndPosition);
// 获取catch代码块的标识
String flag = getCatchFlag(catchInfo, catchEndPosition, tryMinCallId, tryMaxCallId, catchMinCallId, catchMaxCallId);
for (String catchExceptionType : catchInfo.getCatchExceptionTypeList()) {
JavaCG2FileUtil.write2FileWithTab(methodCatchWriter, callerFullMethod, catchExceptionType, flag, String.valueOf(tryStartLineNumber),
String.valueOf(tryEndLineNumber), String.valueOf(tryMinCallId), String.valueOf(tryMaxCallId), String.valueOf(catchInfo.getTargetPosition()),
String.valueOf(catchEndPosition), String.valueOf(catchStartLineNumber), String.valueOf(catchEndLineNumber), String.valueOf(catchMinCallId),
String.valueOf(catchMaxCallId));
}
}
// 将finally信息写入文件
for (FinallyInfo finallyInfo : finallyInfoList) {
boolean isTryOrCatch = !catchFromPositionSet.contains(finallyInfo.getFromPosition());
String tryCatchType = isTryOrCatch ? JavaCG2Constants.TRY : JavaCG2Constants.CATCH;
int tryCatchStartLineNumber = getSourceLine(finallyInfo.getFromPosition());
int tryCatchEndLineNumber = getSourceLine(finallyInfo.getEndPosition());
int tryCatchMinCallId = getMinCallId(finallyInfo.getFromPosition(), finallyInfo.getEndPosition());
int tryCatchMaxCallId = getMaxCallId(finallyInfo.getFromPosition(), finallyInfo.getEndPosition());
int finallyStartLineNumber = getSourceLine(finallyInfo.getTargetPosition());
JavaCG2FileUtil.write2FileWithTab(methodFinallyWriter, callerFullMethod, tryCatchType, String.valueOf(tryCatchStartLineNumber), String.valueOf(tryCatchEndLineNumber),
String.valueOf(tryCatchMinCallId), String.valueOf(tryCatchMaxCallId), String.valueOf(finallyStartLineNumber));
}
}
// 获取catch代码块的标识
private String getCatchFlag(CatchInfo catchInfo, int catchEndPosition, int tryMinCallId, int tryMaxCallId, int catchMinCallId, int catchMaxCallId) {
if (innerAnonymousClassFlag && JavaCG2CommonNameConstants.METHOD_NAME_CLINIT.equals(callerMethodName)) {
// 当前类为内部类，且方法为时，判断catch代码块是否为编译器生成的switch处理
InstructionHandle tryStartIh = instructionList.findHandle(catchInfo.getFromPosition());
Instruction tryStartInstruction = tryStartIh.getInstruction();
if (tryStartInstruction.getOpcode() == Const.GETSTATIC) {
GETSTATIC getstatic = (GETSTATIC) tryStartInstruction;
String getStaticFieldName = getstatic.getFieldName(cpg);
if (getStaticFieldName.startsWith(JavaCG2CommonNameConstants.SWITCH_MAP)) {
return JavaCG2Constants.FILE_KEY_CATCH_FLAG_SWITCH;
}
}
}
// 判断是否编译器为try-with-resource生成的catch代码块
if (tryMinCallId == tryMaxCallId && tryMinCallId >= JavaCG2Constants.METHOD_CALL_ID_MIN && catchMinCallId == catchMaxCallId && catchMinCallId >= JavaCG2Constants.METHOD_CALL_ID_MIN) {
// try与catch代码块应都只有一个方法调用，且指令为INVOKEVIRTUAL
InstructionHandle tryInvokeVirtualIh = JavaCG2InstructionUtil.findFirstIhBetween(instructionList, catchInfo.getFromPosition(), catchInfo.getToPosition(),
Const.INVOKEVIRTUAL);
if (tryInvokeVirtualIh == null) {
return "";
}
INVOKEVIRTUAL tryInvokeVirtual = (INVOKEVIRTUAL) tryInvokeVirtualIh.getInstruction();
String tryCalleeMethodName = tryInvokeVirtual.getMethodName(cpg);
// try中的方法调用被调用方法名应为close
if (!JavaCG2CommonNameConstants.METHOD_NAME_CLOSE.equals(tryCalleeMethodName)) {
return "";
}
InstructionHandle catchInvokeVirtualIh = JavaCG2InstructionUtil.findFirstIhBetween(instructionList, catchInfo.getTargetPosition(), catchEndPosition,
Const.INVOKEVIRTUAL);
if (catchInvokeVirtualIh == null) {
return "";
}
INVOKEVIRTUAL catchInvokeVirtual = (INVOKEVIRTUAL) catchInvokeVirtualIh.getInstruction();
JavaCG2MethodInfo catchCalleeInfo = JavaCG2InstructionUtil.getCalleeMethodInfo(catchInvokeVirtual, cpg);
// catch中的方法调用被调用方法应为 Throwable.addSuppressed(Throwable)
if (!JavaCG2CommonNameConstants.CLASS_NAME_THROWABLE.equals(catchCalleeInfo.getClassName()) ||
!JavaCG2CommonNameConstants.METHOD_NAME_ADD_SUPPRESSED.equals(catchCalleeInfo.getMethodName()) ||
catchCalleeInfo.getMethodArgumentTypes().length != 1 ||
!JavaCG2CommonNameConstants.CLASS_NAME_THROWABLE.equals(catchCalleeInfo.getMethodArgumentTypes()[0].toString())) {
return "";
}
// 查询catch中的方法调用的参数1的可能的信息，应使用了catch的异常对象
MethodCallPossibleInfo catchMethodCallPossibleInfo = methodHandler4TypeAndValue.getMethodCallPossibleInfo(catchInvokeVirtualIh.getPosition());
if (catchMethodCallPossibleInfo == null) {
return "";
}
MethodCallPossibleList arg1PossibleList = catchMethodCallPossibleInfo.getPossibleInfo4Args(0);
if (arg1PossibleList == null || arg1PossibleList.getMethodCallPossibleEntryList() == null) {
return "";
}
for (MethodCallPossibleEntry arg1PossibleEntry : arg1PossibleList.getMethodCallPossibleEntryList()) {
if (arg1PossibleEntry.getCatchExceptionStartPosition() == catchInfo.getTargetPosition()) {
return JavaCG2Constants.FILE_KEY_CATCH_FLAG_TRY_WITH_RESOURCE;
}
}
}
return "";
}
/**
* 获取catch代码块的结束偏移量
*
* @param catchInfo
* @param catchFinallyInfoMap
* @param tryInfoMap
* @return
*/
private int getCatchEndPosition(CatchInfo catchInfo, Map catchFinallyInfoMap, Map tryInfoMap) {
// 优先使用finally信息获取catch代码块结束偏移量
FinallyInfo finallyInfo = catchFinallyInfoMap.get(catchInfo.getTargetPosition());
if (finallyInfo != null) {
return finallyInfo.getEndPosition();
}
// 获取对应的try、catch、finally信息
CatchAndFinallyInfo catchAndFinallyInfo = tryInfoMap.get(catchInfo.getFromPosition());
List catchInfoListOfTry = catchAndFinallyInfo.getCatchInfoList();
int catchInfoListOfTrySize = catchInfoListOfTry.size();
if (catchInfoListOfTrySize > 1) {
// 当前的try有多个catch，判断当前catch是第几个
int catchIndex = findCatchInfoIndexInList(catchInfo, catchInfoListOfTry);
if (catchIndex < catchInfoListOfTrySize - 1) {
// 使用下一个catch获取当前catch代码块结束偏移量
CatchInfo nextCatchInfo = catchInfoListOfTry.get(catchIndex + 1);
return JavaCG2InstructionUtil.getInstructionPositionBefore(instructionList, nextCatchInfo.getTargetPosition());
}
}
int tryEndPosition = catchInfo.getToPosition();
// 当前的try只有一个catch，或者有多个catch且当前是最后一个catch
// 从try的最后一个指令开始向前找到第一个goto或return类指令
InstructionHandle tryLastIh = instructionList.findHandle(catchInfo.getToPosition());
InstructionHandle tryLastGotoReturnIh = JavaCG2InstructionUtil.findLastIh(tryLastIh, JavaCG2InstructionUtil.GOTO_RETURN_OPCODES);
if (tryLastGotoReturnIh == null) {
// 从try的最后一个指令开始向前未找到goto或return类指令，尝试使用对应的try的finally代码块开始指令前一个指令的偏移量
FinallyInfo tryFinallyInfo = catchAndFinallyInfo.getFinallyInfo();
if (tryFinallyInfo != null) {
return JavaCG2InstructionUtil.getInstructionPositionBefore(instructionList, tryFinallyInfo.getTargetPosition());
}
// 从try的最后一个指令开始向前未找到goto或return类指令，对应的try也没有finally时，使用最后一个指令作为catch代码块最后的指令
return instructionList.getEnd().getPosition();
}
Instruction tryLastGotoReturnInstruction = tryLastGotoReturnIh.getInstruction();
if (JavaCG2InstructionUtil.isReturnInstruction(tryLastGotoReturnInstruction.getOpcode())) {
// return类指令，使用最后一个指令的偏移量作为 catch 代码块结束位置
return instructionList.getEnd().getPosition();
}
// try代码块最后找到goto类指令
GotoInstruction tryLastGotoInstruction = (GotoInstruction) tryLastGotoReturnInstruction;
int gotoTargetPosition = tryLastGotoInstruction.getTarget().getPosition();
if (gotoTargetPosition < tryLastGotoReturnIh.getPosition()) {
/*
goto往前跳转
从goto的目标指令开始，到try代码块结束指令之间，查找if类指令，满足跳转目标指令大于try代码块结束指令的情况
*/
InstructionHandle findIfIh = instructionList.findHandle(gotoTargetPosition);
while (findIfIh != null && findIfIh.getPosition() <= tryEndPosition) {
Instruction currentInstruction = findIfIh.getInstruction();
if (currentInstruction instanceof IfInstruction) {
IfInstruction ifInstruction = (IfInstruction) currentInstruction;
if (ifInstruction.getTarget().getPosition() > tryEndPosition) {
// 找到跳转目标指令大于try代码块结束指令的if类指令，使用跳转目标指令的前一个指令的偏移量作为 catch 代码块结束位置
return ifInstruction.getTarget().getPrev().getPosition();
}
}
findIfIh = findIfIh.getNext();
}
/*
goto往前跳转时，未找到向后跳转的if类指令
从第一个catch代码块开始向后找到第一个goto指令
*/
CatchInfo firstCatchInfo = catchInfoListOfTry.get(0);
InstructionHandle gotoIh = JavaCG2InstructionUtil.findFirstIhBetween(instructionList, firstCatchInfo.getTargetPosition(), Integer.MAX_VALUE,
TypeConstants.GOTO_OPCODES);
if (gotoIh == null) {
// 从第一个catch代码块开始向后未找到goto指令时，使用最后一个指令作为catch代码块最后的指令
return instructionList.getEnd().getPosition();
}
// 使用从第一个catch代码块开始向后找到第一个goto指令
GotoInstruction gotoInstruction = (GotoInstruction) gotoIh.getInstruction();
InstructionHandle gotoTargetPrevIh = gotoInstruction.getTarget().getPrev();
if (gotoTargetPrevIh == null) {
// goto指令的跳转目标指令的前一条指令不存在时，使用goto指令的前一条指令作为catch代码块结束位置
return gotoIh.getPrev().getPosition();
}
// 使用从第一个catch代码块开始向后找到第一个goto指令的跳转目标指令的前一条指令作为catch代码块结束位置
return gotoTargetPrevIh.getPosition();
}
// goto向后跳转
InstructionHandle beforeTryLastGotoTargetIh = tryLastGotoInstruction.getTarget().getPrev();
// 判断try最后的与catch的第一个goto跳转目标指令是否相同
int tryLastGotoPosition = tryLastGotoInstruction.getTarget().getPosition();
InstructionHandle catchFirstGotoIh = JavaCG2InstructionUtil.findFirstIhBetween(instructionList, catchInfo.getTargetPosition(), tryLastGotoPosition,
TypeConstants.GOTO_OPCODES);
if (catchFirstGotoIh != null) {
GotoInstruction catchFirstGoto = (GotoInstruction) catchFirstGotoIh.getInstruction();
if (catchFirstGoto.getTarget().getPosition() == tryLastGotoPosition) {
// try最后的与catch的第一个goto跳转目标指令相同，使用catch的第一个goto指令的前一个指令作为结束指令
return catchFirstGotoIh.getPrev().getPosition();
}
}
// try代码块中跳转目标指令的前一个指令的偏移量，作为 catch 代码块结束位置
return beforeTryLastGotoTargetIh.getPosition();
}
/**
* 对于指定的指令偏移敬意，从前往后找到第一个方法调用ID
*
* @param startPosition
* @param endPosition
* @return
*/
private int getMinCallId(int startPosition, int endPosition) {
Integer callId = invokeInstructionPositionCallIdMap.get(startPosition);
if (callId != null) {
return callId;
}
InstructionHandle instructionHandle = instructionList.findHandle(startPosition);
do {
callId = invokeInstructionPositionCallIdMap.get(instructionHandle.getPosition());
if (callId != null) {
return callId;
}
instructionHandle = instructionHandle.getNext();
} while (instructionHandle != null && instructionHandle.getPosition() <= endPosition);
return JavaCG2Constants.METHOD_CALL_ID_MIN_BEFORE;
}
/**
* 对于指定的指令偏移敬意，从前往后找到第一个方法调用ID
*
* @param startPosition
* @param endPosition
* @return
*/
private int getMaxCallId(int startPosition, int endPosition) {
Integer callId = invokeInstructionPositionCallIdMap.get(endPosition);
if (callId != null) {
return callId;
}
InstructionHandle instructionHandle = instructionList.findHandle(endPosition);
do {
callId = invokeInstructionPositionCallIdMap.get(instructionHandle.getPosition());
if (callId != null) {
return callId;
}
instructionHandle = instructionHandle.getPrev();
} while (instructionHandle != null && instructionHandle.getPosition() >= startPosition);
return JavaCG2Constants.METHOD_CALL_ID_MIN_BEFORE;
}
private int findCatchInfoIndexInList(CatchInfo catchInfo, List catchInfoList) {
for (int i = 0; i < catchInfoList.size(); i++) {
if (catchInfo.getTargetPosition() == catchInfoList.get(i).getTargetPosition()) {
return i;
}
}
return -1;
}
// 处理方法注解
private void handleMethodAnnotations() {
for (AnnotationEntry annotationEntry : method.getAnnotationEntries()) {
String annotationClassName = Utility.typeSignatureToString(annotationEntry.getAnnotationType(), false);
// 判断方法上每个注解是否存在对应的扩展类处理
MethodAnnotationParser methodAnnotationParser = extensionsManager.getMethodAnnotationParser(annotationClassName);
if (methodAnnotationParser == null) {
continue;
}
// 使用扩展类处理方法注解
methodAnnotationParser.parseMethodAnnotation(callerClassName, callerMethodName, callerMethodArgTypes, methodReturnType, annotationClassName, annotationEntry,
methodCallList);
}
}
// 处理方法调用指令
private void handleInvokeInstruction(MethodCallPossibleInfo methodCallPossibleInfo) throws IOException {
logger.debug("处理方法调用指令 {} ({})", JavaCG2InstructionUtil.getInstructionHandlePrintInfo(ih), getSourceLine());
Instruction invokeInstruction = ih.getInstruction();
JavaCG2MethodInfo calleeMethodInfo = JavaCG2InstructionUtil.getCalleeMethodInfo((InvokeInstruction) invokeInstruction, cpg);
switch (invokeInstruction.getOpcode()) {
case Const.INVOKEVIRTUAL:
// 处理INVOKEVIRTUAL指令
handleINVOKEVIRTUAL((INVOKEVIRTUAL) invokeInstruction, calleeMethodInfo, methodCallPossibleInfo);
break;
case Const.INVOKEINTERFACE:
// 处理INVOKEINTERFACE指令
handleINVOKEINTERFACE((INVOKEINTERFACE) invokeInstruction, calleeMethodInfo, methodCallPossibleInfo);
break;
case Const.INVOKESPECIAL:
// 处理INVOKESPECIAL指令
handleINVOKESPECIAL((INVOKESPECIAL) invokeInstruction, calleeMethodInfo, methodCallPossibleInfo);
break;
case Const.INVOKESTATIC:
// 处理INVOKESTATIC指令
handleINVOKESTATIC((INVOKESTATIC) invokeInstruction, calleeMethodInfo, methodCallPossibleInfo);
break;
case Const.INVOKEDYNAMIC:
// 处理INVOKEDYNAMIC指令
handleINVOKEDYNAMIC((INVOKEDYNAMIC) invokeInstruction, calleeMethodInfo, methodCallPossibleInfo);
break;
default:
logger.error("不会执行到此: {}", invokeInstruction.getOpcode());
break;
}
}
// 处理ATHROW指令
private void handleATHROW(ThrowInfoList throwInfoList) throws IOException {
int position = ih.getPosition();
int sourceLine = getSourceLine(position);
for (int i = 0; i < throwInfoList.size(); i++) {
ThrowInfo throwInfo = throwInfoList.get(i);
Integer methodThrowReturnCallId = null;
Integer invokeInstructionPosition = throwInfo.getInvokeInstructionPosition();
if (invokeInstructionPosition != null) {
methodThrowReturnCallId = getInvokeInstructionCallId(invokeInstructionPosition);
}
JavaCG2FileUtil.write2FileWithTab(methodThrowWriter,
callerFullMethod,
String.valueOf(position),
String.valueOf(sourceLine),
String.valueOf(i),
throwInfo.getThrowExceptionType(),
throwInfo.getThrowFlag(),
JavaCG2Util.genStringFromInteger(throwInfo.getCatchStartPosition()),
throwInfo.getCatchExceptionVariableName(),
JavaCG2Util.genStringFromInteger(methodThrowReturnCallId));
}
}
// 处理INVOKEVIRTUAL指令
private void handleINVOKEVIRTUAL(INVOKEVIRTUAL invokevirtual, JavaCG2MethodInfo calleeMethodInfo, MethodCallPossibleInfo methodCallPossibleInfo) {
String calleeClassName = calleeMethodInfo.getClassName();
String calleeMethodName = calleeMethodInfo.getMethodName();
Type[] calleeArgTypes = calleeMethodInfo.getMethodArgumentTypes();
// 记录线程相关的方法调用，Thread子类
addMethodCall4ThreadStart(calleeClassName, calleeMethodName, calleeArgTypes);
if (methodCallPossibleInfo == null) {
// 记录方法调用信息
addCommonMethodCall(invokevirtual, JavaCG2CallTypeEnum.CTE_RAW_INVOKE_VIRTUAL, null, calleeClassName, calleeMethodName, calleeArgTypes, null, null);
return;
}
// 处理被调用类型可变的调用
handleChangeableCalleeType(invokevirtual, false, calleeClassName, calleeMethodName, calleeArgTypes, methodCallPossibleInfo);
}
// 处理INVOKEINTERFACE指令
private void handleINVOKEINTERFACE(INVOKEINTERFACE invokeinterface, JavaCG2MethodInfo calleeMethodInfo, MethodCallPossibleInfo methodCallPossibleInfo) {
String calleeClassName = calleeMethodInfo.getClassName();
String calleeMethodName = calleeMethodInfo.getMethodName();
Type[] calleeArgTypes = calleeMethodInfo.getMethodArgumentTypes();
if (methodCallPossibleInfo == null) {
// 记录方法调用信息
addCommonMethodCall(invokeinterface, JavaCG2CallTypeEnum.CTE_RAW_INVOKE_INTERFACE, null, calleeClassName, calleeMethodName, calleeArgTypes, null, null);
return;
}
// 处理被调用类型可变的调用
handleChangeableCalleeType(invokeinterface, true, calleeClassName, calleeMethodName, calleeArgTypes, methodCallPossibleInfo);
}
// 处理INVOKESPECIAL指令
private void handleINVOKESPECIAL(INVOKESPECIAL invokespecial, JavaCG2MethodInfo calleeMethodInfo, MethodCallPossibleInfo methodCallPossibleInfo) {
String calleeClassName = calleeMethodInfo.getClassName();
String calleeMethodName = calleeMethodInfo.getMethodName();
Type[] calleeArgTypes = calleeMethodInfo.getMethodArgumentTypes();
// 记录线程相关的方法调用，Runnable、Callable实现类
boolean skipRawMethodCall = addMethodCall4SpecialInit(calleeClassName, calleeMethodName, calleeArgTypes);
if (skipRawMethodCall) {
return;
}
JavaCG2CallTypeEnum callTypeEnum = JavaCG2CallTypeEnum.CTE_RAW_INVOKE_SPECIAL;
if (!JavaCG2ClassMethodUtil.isInitMethod(calleeMethodName)
&& calleeClassName.equals(javaClass.getSuperclassName())
&& methodCallPossibleInfo != null && JavaCG2CalleeObjTypeEnum.COTE_THIS == methodCallPossibleInfo.getObjTypeEnum()) {
/*
满足以下所有条件时，将方法调用类型修改为代表super.方法调用：
- 方法调用指令为INVOKESPECIAL
- 被调用方法不是
- 被调用类为调用类的父类
- 被调用对象是this
*/
callTypeEnum = JavaCG2CallTypeEnum.CTE_CHILD_CALL_SUPER_SPECIAL;
}
// 记录方法调用信息
addCommonMethodCallWithInfo(invokespecial, callTypeEnum, null, calleeClassName, calleeMethodName, calleeArgTypes, methodCallPossibleInfo);
}
// 处理INVOKESTATIC指令
private void handleINVOKESTATIC(INVOKESTATIC invokestatic, JavaCG2MethodInfo calleeMethodInfo, MethodCallPossibleInfo methodCallPossibleInfo) {
String calleeClassName = calleeMethodInfo.getClassName();
String calleeMethodName = calleeMethodInfo.getMethodName();
Type[] calleeArgTypes = calleeMethodInfo.getMethodArgumentTypes();
// 记录方法调用信息
addCommonMethodCallWithInfo(invokestatic, JavaCG2CallTypeEnum.CTE_RAW_INVOKE_STATIC, null, calleeClassName, calleeMethodName, calleeArgTypes, methodCallPossibleInfo);
}
// 处理INVOKEDYNAMIC指令
private void handleINVOKEDYNAMIC(INVOKEDYNAMIC invokedynamic, JavaCG2MethodInfo calleeMethodInfo, MethodCallPossibleInfo methodCallPossibleInfo) throws IOException {
String calleeClassName = calleeMethodInfo.getClassName();
String calleeMethodName = calleeMethodInfo.getMethodName();
Type[] calleeArgTypes = calleeMethodInfo.getMethodArgumentTypes();
// 记录INVOKEDYNAMIC指令对应的方法调用信息
addCommonMethodCallWithInfo(invokedynamic, JavaCG2CallTypeEnum.CTE_RAW_INVOKE_DYNAMIC, null, calleeClassName, calleeMethodName, calleeArgTypes, methodCallPossibleInfo);
// 判断是否为Lambda表达式
Constant constant = cpg.getConstant(invokedynamic.getIndex());
if (!(constant instanceof ConstantInvokeDynamic)) {
return;
}
// 处理Lambda表达式
ConstantInvokeDynamic cid = (ConstantInvokeDynamic) constant;
// 获得JavaClass中指定下标的BootstrapMethod
BootstrapMethod bootstrapMethod = JavaCG2BootstrapMethodUtil.getBootstrapMethod(javaClass, cid.getBootstrapMethodAttrIndex());
if (bootstrapMethod == null) {
logger.warn("无法找到bootstrapMethod {} {}", callerClassName, cid.getBootstrapMethodAttrIndex());
return;
}
// 获得BootstrapMethod的方法信息
JavaCG2MethodInfo bootstrapMethodInfo = JavaCG2BootstrapMethodUtil.getBootstrapMethodInfo(bootstrapMethod, javaClass);
if (bootstrapMethodInfo == null) {
logger.warn("无法找到bootstrapMethod的方法信息 {} {}", callerClassName, bootstrapMethod);
return;
}
// 记录Lambda表达式实际的方法调用信息
MethodCall methodCall = addCommonMethodCall(invokedynamic, JavaCG2CallTypeEnum.CTE_LAMBDA, null, bootstrapMethodInfo.getClassName(), bootstrapMethodInfo.getMethodName(),
bootstrapMethodInfo.getMethodArgumentTypes(), bootstrapMethodInfo.getMethodReturnType(), null);
if (methodCall == null) {
// 当前方法调用不记录，返回
return;
}
// 处理被调用的Lambda表达式方法信息
String nextCalleeFullMethod = null;
InstructionHandle nextIh = ih.getNext();
while (nextIh != null) {
Instruction nextInstruction = nextIh.getInstruction();
short nextOpcode = nextInstruction.getOpcode();
if (!JavaCG2InstructionUtil.isMethodInvokeInstruction(nextOpcode)) {
// 向后找到非方法调用指令则结束
break;
}
if (JavaCG2InstructionUtil.isMethodInvokeInstructionExcludeDynamic(nextOpcode)) {
// 向后找到非INVOKEDYNAMIC方法调用指令，记录对应的方法
JavaCG2MethodInfo nextCalleeMethodInfo = JavaCG2InstructionUtil.getCalleeMethodInfo((InvokeInstruction) nextInstruction, cpg);
nextCalleeFullMethod = JavaCG2ClassMethodUtil.formatFullMethod(nextCalleeMethodInfo);
break;
}
nextIh = nextIh.getNext();
}
String calleeFullMethod = JavaCG2ClassMethodUtil.formatFullMethod(calleeClassName, calleeMethodName, calleeArgTypes);
if (nextCalleeFullMethod == null) {
// 记录被调用的Lambda表达式方法信息，不包含下一个被调用方法信息
JavaCG2FileUtil.write2FileWithTab(lambdaMethodInfoWriter, String.valueOf(methodCall.getCallId()), calleeFullMethod);
} else {
// 记录被调用的Lambda表达式方法信息，包含下一个被调用方法信息
JavaCG2FileUtil.write2FileWithTab(lambdaMethodInfoWriter, String.valueOf(methodCall.getCallId()), calleeFullMethod, nextCalleeFullMethod);
}
}
/**
* 处理被调用类型可变的调用
*
* @param invokeInstruction 方法调用指令
* @param isInterface 被调用对象是否为接口
* @param calleeClassName
* @param calleeMethodName
* @param argTypes
* @param methodCallPossibleInfo
*/
private void handleChangeableCalleeType(InvokeInstruction invokeInstruction,
boolean isInterface,
String calleeClassName,
String calleeMethodName,
Type[] argTypes,
MethodCallPossibleInfo methodCallPossibleInfo) {
// 记录已处理过的被调用对象类型
Set handledCalleeTypeSet = new HashSet<>();
MethodCallPossibleList methodCallPossibleList4Object = methodCallPossibleInfo.getPossibleInfo4Object();
if (methodCallPossibleList4Object != null) {
// 处理Spring Bean相关的被调用对象类型，外层已判断methodCallPossibleInfo非空
if (useSpringBeanByAnnotationHandler.hasUseSpringBean() && methodCallPossibleList4Object.hasNonStaticField()) {
// 涉及Spring Bean，获取被调用对象可能的非静态字段名
for (MethodCallPossibleEntry methodCallPossibleEntry : methodCallPossibleList4Object.getMethodCallPossibleEntryList()) {
FieldTypeAndName nonStaticField = methodCallPossibleEntry.getNonStaticField();
if (nonStaticField == null) {
continue;
}
// 获取指定类指定字段对应的Spring Bean类型
List springBeanFieldTypeList = useSpringBeanByAnnotationHandler.getSpringBeanTypeList(callerClassName, nonStaticField.getFieldName());
if (JavaCG2Util.isCollectionEmpty(springBeanFieldTypeList)) {
continue;
}
for (String springBeanFieldType : springBeanFieldTypeList) {
// 尝试添加方法调用信息，使用对应的被调用类型
tryAddMethodCallWithType(invokeInstruction, isInterface, true, handledCalleeTypeSet, calleeClassName, springBeanFieldType, calleeMethodName, argTypes,
methodCallPossibleInfo);
}
}
}
// 处理一般的被调用对象类型
if (methodCallPossibleList4Object.hasType()) {
for (MethodCallPossibleEntry methodCallPossibleEntry : methodCallPossibleList4Object.getMethodCallPossibleEntryList()) {
String type = methodCallPossibleEntry.getType();
if (type != null) {
// 尝试添加方法调用信息，使用对应的被调用类型
tryAddMethodCallWithType(invokeInstruction, isInterface, false, handledCalleeTypeSet, calleeClassName, type, calleeMethodName, argTypes,
methodCallPossibleInfo);
}
}
}
}
if (handledCalleeTypeSet.isEmpty()) {
// 未添加与方法调用指令中被调用类不同类型的调用信息，使用方法调用指令中被调用类进行添加
// 获取实际的被调用类型
JavaCG2CallTypeEnum callTypeEnum = isInterface ? JavaCG2CallTypeEnum.CTE_RAW_INVOKE_INTERFACE : JavaCG2CallTypeEnum.CTE_RAW_INVOKE_VIRTUAL;
// 记录方法调用信息
addCommonMethodCallWithInfo(invokeInstruction, callTypeEnum, null, calleeClassName, calleeMethodName, argTypes, methodCallPossibleInfo);
}
}
/**
* 获取实际的被调用类型
*
* @param isInterface 被调用对象是否为接口
* @param isSpringBean 被调用对象是否为Spring Bean
* @return
*/
private JavaCG2CallTypeEnum chooseActualCallType(boolean isInterface, boolean isSpringBean) {
// 有替换被调用对象的类型
if (isSpringBean) {
return isInterface ? JavaCG2CallTypeEnum.CTE_SPRING_BEAN_ACTUAL_INTERFACE : JavaCG2CallTypeEnum.CTE_SPRING_BEAN_ACTUAL_CLASS;
}
return isInterface ? JavaCG2CallTypeEnum.CTE_ACTUAL_INTERFACE : JavaCG2CallTypeEnum.CTE_ACTUAL_CLASS;
}
/**
* 尝试添加方法调用信息，使用对应的被调用类型
*
* @param invokeInstruction
* @param isInterface
* @param isSpringBean
* @param handledCalleeTypeSet
* @param calleeClassName
* @param calleeTypeRuntime
* @param calleeMethodName
* @param argTypes
* @param methodCallPossibleInfo
*/
private void tryAddMethodCallWithType(InvokeInstruction invokeInstruction,
boolean isInterface,
boolean isSpringBean,
Set handledCalleeTypeSet,
String calleeClassName,
String calleeTypeRuntime,
String calleeMethodName,
Type[] argTypes,
MethodCallPossibleInfo methodCallPossibleInfo) {
if (handledCalleeTypeSet.contains(calleeTypeRuntime) ||
StringUtils.equals(calleeClassName, calleeTypeRuntime) ||
JavaCG2ByteCodeUtil.isNullType(calleeTypeRuntime) ||
JavaCG2ClassMethodUtil.isObjectClass(calleeTypeRuntime)) {
/*
以下情况不处理：
已处理过的被调用类型
被调用类型与方法调用指令中被调用类相同
被调用类型为null
被调用类型为Object
*/
return;
}
// 获取实际的被调用类型
JavaCG2CallTypeEnum callTypeEnum = chooseActualCallType(isInterface, isSpringBean);
// 记录方法调用信息
addCommonMethodCallWithInfo(invokeInstruction, callTypeEnum, calleeTypeRuntime, calleeClassName, calleeMethodName, argTypes, methodCallPossibleInfo);
handledCalleeTypeSet.add(calleeTypeRuntime);
}
/**
* 记录方法调用信息，尝试记录处理可能的信息
*
* @param invokeInstruction 方法调用指令
* @param callTypeEnum 调用类型
* @param calleeTypeRuntime 运行时的被调用类型
* @param calleeClassName 方法调用指令中的被调用类名
* @param calleeMethodName 被调用方法名
* @param argTypes 被调用方法参数类型数组
* @param methodCallPossibleInfo 方法调用可能的信息
*/
private void addCommonMethodCallWithInfo(InvokeInstruction invokeInstruction,
JavaCG2CallTypeEnum callTypeEnum,
String calleeTypeRuntime,
String calleeClassName,
String calleeMethodName,
Type[] argTypes,
MethodCallPossibleInfo methodCallPossibleInfo) {
if (methodCallPossibleInfo == null) {
addCommonMethodCall(invokeInstruction, callTypeEnum, calleeTypeRuntime, calleeClassName, calleeMethodName, argTypes, null, null);
return;
}
MethodCall methodCall = addCommonMethodCall(invokeInstruction, callTypeEnum, calleeTypeRuntime, calleeClassName, calleeMethodName, argTypes, null,
methodCallPossibleInfo.getObjTypeEnum());
if (methodCall == null) {
return;
}
methodCallInfoMap.put(methodCall.getCallId(), methodCallPossibleInfo);
}
/**
* 记录方法调用信息
*
* @param invokeInstruction 方法调用指令
* @param callTypeEnum 调用类型
* @param calleeTypeRuntime 运行时的被调用类型
* @param calleeClassName 方法调用指令中的被调用类名
* @param calleeMethodName 被调用方法名
* @param calleeArgTypes 被调用方法参数类型数组
* @param calleeReturnType 被调用方法返回类型
* @param objTypeEnum 被调用对象类型
*/
private MethodCall addCommonMethodCall(InvokeInstruction invokeInstruction,
JavaCG2CallTypeEnum callTypeEnum,
String calleeTypeRuntime,
String calleeClassName,
String calleeMethodName,
Type[] calleeArgTypes,
Type calleeReturnType,
JavaCG2CalleeObjTypeEnum objTypeEnum) {
if (JavaCG2Util.checkSkipClass(calleeClassName, javaCG2ConfInfo.getNeedHandlePackageSet())) {
return null;
}
String rawReturnType = "";
String actualReturnType = "";
if (invokeInstruction != null) {
// 传入的方法调用指令非空，处理方法返回类型
// 获取方法原始返回类型
Type returnType = invokeInstruction.getReturnType(cpg);
rawReturnType = returnType.toString();
if (Type.VOID != returnType) {
// 获取方法实际返回类型
InstructionHandle nextIh = ih.getNext();
if (nextIh != null) {
Instruction nextI = nextIh.getInstruction();
if (nextI instanceof CHECKCAST) {
CHECKCAST checkcast = (CHECKCAST) nextI;
actualReturnType = JavaCG2InstructionUtil.getTypeString(checkcast, cpg);
}
}
}
}
// 若运行时的被调用类型非空则使用，若为空则使用方法调用指令中的被调用类名
MethodCall methodCall = new MethodCall();
methodCall.setCallId(genNewCallId());
methodCall.setCallerClassName(callerClassName);
methodCall.setCallerMethodName(callerMethodName);
methodCall.setCallerMethodArgTypes(callerMethodArgTypes);
methodCall.setCallerReturnType(methodReturnType);
methodCall.setMethodCallType(callTypeEnum);
methodCall.setCalleeClassName(calleeTypeRuntime != null ? calleeTypeRuntime : calleeClassName);
methodCall.setCalleeMethodName(calleeMethodName);
methodCall.setCalleeMethodArgTypes(JavaCG2ClassMethodUtil.getArgTypeStr(calleeArgTypes));
methodCall.setCallerSourceLine(getSourceLine());
methodCall.setObjTypeEnum(objTypeEnum);
// 假如指定的返回类型calleeReturnType非空则使用，若为空则使用通过方法调用指令获取的方法返回类型
methodCall.setRawReturnType(calleeReturnType != null ? calleeReturnType.toString() : rawReturnType);
methodCall.setActualReturnType(actualReturnType);
methodCall.setArgTypes(calleeArgTypes);
methodCallList.addMethodCall(methodCall);
return methodCall;
}
// 添加其他方法调用关系
private void addOtherMethodCall(String callerClassName,
String callerMethodName,
String callerMethodArgTypes,
String callerReturnType,
JavaCG2CallTypeEnum methodCallType,
String calleeClassName,
String calleeMethodName,
String calleeMethodArgTypes,
String calleeReturnType,
int callerSourceLine) {
if (JavaCG2Util.checkSkipClass(calleeClassName, javaCG2ConfInfo.getNeedHandlePackageSet())) {
return;
}
MethodCall methodCall = new MethodCall();
methodCall.setCallId(genNewCallId());
methodCall.setCallerClassName(callerClassName);
methodCall.setCallerMethodName(callerMethodName);
methodCall.setCallerMethodArgTypes(callerMethodArgTypes);
methodCall.setCallerSourceLine(callerSourceLine);
methodCall.setCallerReturnType(callerReturnType);
methodCall.setMethodCallType(methodCallType);
methodCall.setCalleeClassName(calleeClassName);
methodCall.setCalleeMethodName(calleeMethodName);
methodCall.setCalleeMethodArgTypes(calleeMethodArgTypes);
methodCall.setRawReturnType(calleeReturnType);
methodCallList.addMethodCall(methodCall);
}
/**
* 记录特殊的构造函数调用，包括Runnable、Callable实现类、TransactionTemplate相关的类等
*
* @param calleeClassName
* @param calleeMethodName
* @param argTypes
* @return true: 不记录原始的方法调用类型，false: 记录原始的方法调用类型
*/
private boolean addMethodCall4SpecialInit(String calleeClassName, String calleeMethodName, Type[] argTypes) {
if (!JavaCG2ClassMethodUtil.isInitMethod(calleeMethodName)) {
// 记录原始的方法调用类型
return false;
}
boolean skipRawMethodCall = false;
String calleeMethodArgTypes = JavaCG2ClassMethodUtil.getArgTypeStr(argTypes);
// 处理Runnable实现类，run方法返回类型为void
if (handleSpecialInitMethod(runnableImplClassMap, calleeClassName, calleeMethodName, calleeMethodArgTypes, JavaCG2CallTypeEnum.CTE_RUNNABLE_INIT_RUN1,
JavaCG2CallTypeEnum.CTE_RUNNABLE_INIT_RUN2, JavaCG2CommonNameConstants.METHOD_RUNNABLE_RUN, JavaCG2Constants.EMPTY_METHOD_ARGS,
JavaCG2CommonNameConstants.RETURN_TYPE_VOID)) {
skipRawMethodCall = true;
}
// 处理Callable实现类，call方法返回类型不固定
if (handleSpecialInitMethod(callableImplClassMap, calleeClassName, calleeMethodName, calleeMethodArgTypes, JavaCG2CallTypeEnum.CTE_CALLABLE_INIT_CALL1,
JavaCG2CallTypeEnum.CTE_CALLABLE_INIT_CALL2, JavaCG2CommonNameConstants.METHOD_CALLABLE_CALL, JavaCG2Constants.EMPTY_METHOD_ARGS, "")) {
skipRawMethodCall = true;
}
// 处理TransactionCallback实现类，doInTransaction方法返回类型不固定
if (handleSpecialInitMethod(transactionCallbackImplClassMap, calleeClassName, calleeMethodName, calleeMethodArgTypes, JavaCG2CallTypeEnum.CTE_TX_CALLBACK_INIT_CALL1,
JavaCG2CallTypeEnum.CTE_TX_CALLBACK_INIT_CALL2, JavaCG2CommonNameConstants.METHOD_DO_IN_TRANSACTION, JavaCG2CommonNameConstants.ARGS_TRANSACTION_STATUS, "")) {
skipRawMethodCall = true;
}
// 处理TransactionCallbackWithoutResult实现类，doInTransactionWithoutResult方法返回类型为void
if (handleSpecialInitMethod(transactionCallbackWithoutResultChildClassMap, calleeClassName, calleeMethodName, calleeMethodArgTypes,
JavaCG2CallTypeEnum.CTE_TX_CALLBACK_WR_INIT_CALL1, JavaCG2CallTypeEnum.CTE_TX_CALLBACK_WR_INIT_CALL2,
JavaCG2CommonNameConstants.METHOD_DO_IN_TRANSACTION_WITHOUT_RESULT, JavaCG2CommonNameConstants.ARGS_TRANSACTION_STATUS, JavaCG2CommonNameConstants.RETURN_TYPE_VOID)) {
skipRawMethodCall = true;
}
return skipRawMethodCall;
}
// 处理方法，需要增加调用其他方法的情况
private boolean handleSpecialInitMethod(Map map,
String calleeClassName,
String calleeMethodName,
String calleeMethodArgTypes,
JavaCG2CallTypeEnum callTypeEnum1,
JavaCG2CallTypeEnum callTypeEnum2,
String addedCalleeMethodName,
String addedCalleeMethodArgTypes,
String addedCalleeReturnType) {
Boolean recorded = map.get(calleeClassName);
if (recorded == null) {
return false;
}
// 记录其他方法调用对应类的方法
addOtherMethodCall(callerClassName, callerMethodName, callerMethodArgTypes, methodReturnType, callTypeEnum1, calleeClassName, calleeMethodName, calleeMethodArgTypes,
JavaCG2CommonNameConstants.RETURN_TYPE_VOID, getSourceLine());
if (Boolean.FALSE.equals(recorded)) {
// 对应类的方法调用需要增加的方法，方法返回类型为void
addOtherMethodCall(calleeClassName, calleeMethodName, calleeMethodArgTypes, JavaCG2CommonNameConstants.RETURN_TYPE_VOID, callTypeEnum2, calleeClassName,
addedCalleeMethodName, addedCalleeMethodArgTypes, addedCalleeReturnType, JavaCG2Constants.DEFAULT_LINE_NUMBER);
// 避免方法调用相关方法被添加多次
map.put(calleeClassName, Boolean.TRUE);
}
return true;
}
/**
* 记录线程相关的方法调用，Thread子类
*
* @param calleeClassName
* @param calleeMethodName
* @param argTypes
*/
private void addMethodCall4ThreadStart(String calleeClassName, String calleeMethodName, Type[] argTypes) {
if (!JavaCG2CommonNameConstants.METHOD_NAME_START.equals(calleeMethodName) || argTypes.length > 0) {
// 被调用方法不是start()，返回
return;
}
// 处理Thread子类
if (!Boolean.FALSE.equals(threadChildClassMap.get(calleeClassName))) {
return;
}
String calleeMethodArgTypes = JavaCG2ClassMethodUtil.getArgTypeStr(argTypes);
// 记录Thread子类的start方法调用run方法（以上Map的value等于FALSE时，代表当前类为Thread的子类，且start()方法调用run()方法未添加过）
// Thead类的start()、run()方法返回类型都是void
addOtherMethodCall(calleeClassName, calleeMethodName, calleeMethodArgTypes, JavaCG2CommonNameConstants.RETURN_TYPE_VOID, JavaCG2CallTypeEnum.CTE_THREAD_START_RUN,
calleeClassName, "run", JavaCG2Constants.EMPTY_METHOD_ARGS, JavaCG2CommonNameConstants.RETURN_TYPE_VOID, JavaCG2Constants.DEFAULT_LINE_NUMBER);
// 避免start()方法调用run()方法被添加多次
threadChildClassMap.put(calleeClassName, Boolean.TRUE);
}
// 处理方法调用可能的信息
private void handleMethodCallPossibleInfo(MethodCall methodCall, MethodCallPossibleInfo methodCallPossibleInfo) throws IOException {
if (methodCallPossibleInfo == null) {
return;
}
// 记录方法调用可能的信息，被调用对象
recordMethodCallPossibleInfo(methodCall.getCallId(), JavaCG2Constants.METHOD_CALL_OBJECT_SEQ, null, methodCallPossibleInfo.getPossibleInfo4Object());
Type[] argTypes = methodCall.getArgTypes();
// 记录方法调用可能的信息，参数
for (int i = 0; i < methodCallPossibleInfo.getPossibleInfoNum4Args(); i++) {
String argType = argTypes[i].toString();
recordMethodCallPossibleInfo(methodCall.getCallId(), JavaCG2Constants.METHOD_CALL_ARGUMENTS_START_SEQ + i, argType,
methodCallPossibleInfo.getPossibleInfo4Args(i));
}
}
// 记录方法调用可能的信息
private void recordMethodCallPossibleInfo(int methodCallId, int argSeq, String argType, MethodCallPossibleList methodCallPossibleList) throws IOException {
if (methodCallPossibleList == null) {
return;
}
List methodCallPossibleEntryList = methodCallPossibleList.getMethodCallPossibleEntryList();
if (JavaCG2Util.isCollectionEmpty(methodCallPossibleEntryList)) {
return;
}
String arrayElementFlag = JavaCG2YesNoEnum.parseStrValue(methodCallPossibleList.isArrayElement());
StringBuilder stringBuilder = new StringBuilder();
JavaCG2Counter typeCounter = new JavaCG2Counter(-1);
for (int seq = 0; seq < methodCallPossibleEntryList.size(); seq++) {
MethodCallPossibleEntry methodCallPossibleEntry = methodCallPossibleEntryList.get(seq);
// 记录方法调用可能的类型，类型的序号可能比以上list的元素数量多，需要每次累计
recordStringMethodCallPossibleType(stringBuilder, methodCallPossibleEntry, methodCallId, argSeq, typeCounter, arrayElementFlag);
// 处理方法调用可能的值
recordStringMethodCallPossibleValue(stringBuilder, methodCallPossibleEntry, methodCallId, argSeq, argType, seq, arrayElementFlag);
// 处理方法调用可能的被调用静态变量
StaticFieldTypeAndName staticField = methodCallPossibleEntry.getStaticField();
if (staticField != null) {
recordStringMethodCallPossibleInfo(stringBuilder, staticField.getClassAndFieldName(), methodCallId, argSeq,
JavaCG2MethodCallInfoTypeEnum.MCIT_STATIC_FIELD, seq, arrayElementFlag, "");
JavaCG2FileUtil.write2FileWithTab(methodCallStaticFieldWriter,
String.valueOf(methodCallId),
String.valueOf(argSeq),
String.valueOf(seq),
staticField.getClassName(),
staticField.getFieldName(),
staticField.getFieldType(),
callerFullMethod);
}
// 处理被调用对象或参数是静态字段方法返回值的可能信息
recordStringMethodCallPossibleInfo(stringBuilder, methodCallPossibleEntry.getStaticFieldMethodCall(), methodCallId, argSeq,
JavaCG2MethodCallInfoTypeEnum.MCIT_STATIC_FIELD_METHOD_CALL, seq, arrayElementFlag, "");
// 处理被调用对象或参数的字段名称可能信息
FieldTypeAndName nonStaticField = methodCallPossibleEntry.getNonStaticField();
if (nonStaticField != null) {
recordStringMethodCallPossibleInfo(stringBuilder, nonStaticField.getFieldName(), methodCallId, argSeq,
JavaCG2MethodCallInfoTypeEnum.MCIT_NAME_OF_FIELD, seq, arrayElementFlag, "");
}
// 处理被调用对象或参数的变量名称可能信息
recordStringMethodCallPossibleInfo(stringBuilder, methodCallPossibleEntry.getNameOfVariable(), methodCallId, argSeq,
JavaCG2MethodCallInfoTypeEnum.MCIT_NAME_OF_VARIABLE, seq, arrayElementFlag, "");
// 处理被调用对象或参数的方法调用返回call_id可能信息
String methodCallReturnFullMethod = methodCallPossibleEntry.getMethodCallReturnFullMethod();
if (StringUtils.isNotBlank(methodCallReturnFullMethod) && !JavaCG2Util.checkSkipClass(methodCallReturnFullMethod, javaCG2ConfInfo.getNeedHandlePackageSet())) {
Integer methodCallReturnInstructionPosition = methodCallPossibleEntry.getMethodCallReturnInstructionPosition();
if (methodCallReturnInstructionPosition != null) {
// 根据方法调用指令位置查找对应的call_id
Integer methodCallReturnCallId = getInvokeInstructionCallId(methodCallReturnInstructionPosition);
if (methodCallReturnCallId != methodCallId) {
// 仅当当前call_id与被调用对象或参数的方法调用返回call_id不同时才记录
recordStringMethodCallPossibleInfo(stringBuilder, String.valueOf(methodCallReturnCallId), methodCallId, argSeq,
JavaCG2MethodCallInfoTypeEnum.MCIT_METHOD_CALL_RETURN_CALL_ID, seq, arrayElementFlag, "");
// 记录方法调用使用方法调用返回值
JavaCG2FileUtil.write2FileWithTab(methodCallMethodCallReturnWriter,
String.valueOf(methodCallId),
String.valueOf(argSeq),
String.valueOf(seq),
String.valueOf(arrayElementFlag),
String.valueOf(methodCallReturnCallId),
methodCallReturnFullMethod);
}
}
}
// 处理被调用对象或参数的方法参数序号可能信息
Integer methodArgSeq = methodCallPossibleEntry.getMethodArgSeq();
if (methodArgSeq != null) {
recordStringMethodCallPossibleInfo(stringBuilder, String.valueOf(methodArgSeq), methodCallId, argSeq,
JavaCG2MethodCallInfoTypeEnum.MCIT_METHOD_ARG_SEQ, seq, arrayElementFlag, "");
}
// 处理被调用对象或参数等值转换前的方法调用返回call_id可能信息
String methodCallReturnFullMethodEQC = methodCallPossibleEntry.getMethodCallReturnFullMethodEQC();
if (StringUtils.isNotBlank(methodCallReturnFullMethodEQC) && !JavaCG2Util.checkSkipClass(methodCallReturnFullMethodEQC, javaCG2ConfInfo.getNeedHandlePackageSet())) {
Integer methodCallReturnInstructionPositionEQC = methodCallPossibleEntry.getMethodCallReturnInstructionPositionEQC();
if (methodCallReturnInstructionPositionEQC != null) {
// 根据方法调用指令位置查找对应的call_id
Integer methodCallReturnCallIdEQC = getInvokeInstructionCallId(methodCallReturnInstructionPositionEQC);
if (methodCallReturnCallIdEQC != methodCallId) {
// 仅当当前call_id与被调用对象或参数的方法调用返回call_id不同时才记录
recordStringMethodCallPossibleInfo(stringBuilder, String.valueOf(methodCallReturnCallIdEQC), methodCallId, argSeq,
JavaCG2MethodCallInfoTypeEnum.MCIT_METHOD_CALL_RETURN_CALL_ID_EQC, seq, arrayElementFlag, "");
}
}
}
// 处理被调用对象或参数等值转换前的方法参数序号可能信息
Integer methodArgSeqEQC = methodCallPossibleEntry.getMethodArgSeqEQC();
if (methodArgSeqEQC != null) {
recordStringMethodCallPossibleInfo(stringBuilder, String.valueOf(methodArgSeqEQC), methodCallId, argSeq,
JavaCG2MethodCallInfoTypeEnum.MCIT_METHOD_ARG_SEQ_EQC, seq, arrayElementFlag, "");
}
// 处理被调用对象或参数的catch异常对象对应的catch代码块开始指令偏移量可能信息
Integer catchExceptionStartPosition = methodCallPossibleEntry.getCatchExceptionStartPosition();
if (catchExceptionStartPosition != null) {
recordStringMethodCallPossibleInfo(stringBuilder, String.valueOf(catchExceptionStartPosition), methodCallId, argSeq,
JavaCG2MethodCallInfoTypeEnum.MCIT_METHOD_CATCH_EXCEPTION_FROM_OFFSET, seq, arrayElementFlag, "");
}
}
JavaCG2FileUtil.write2FileNoLF(methodCallInfoWriter, stringBuilder.toString());
}
// 记录方法调用可能的类型
private void recordStringMethodCallPossibleType(StringBuilder stringBuilder, MethodCallPossibleEntry methodCallPossibleEntry, int methodCallId, int argSeq,
JavaCG2Counter typeCounter, String arrayElementFlag) {
if (useSpringBeanByAnnotationHandler.hasUseSpringBean()) {
// 涉及Spring Bean，获取被调用对象可能的非静态字段名
FieldTypeAndName nonStaticField = methodCallPossibleEntry.getNonStaticField();
if (nonStaticField != null) {
// 获取指定类指定字段对应的Spring Bean类型
List springBeanFieldTypeList = useSpringBeanByAnnotationHandler.getSpringBeanTypeList(callerClassName, nonStaticField.getFieldName());
if (!JavaCG2Util.isCollectionEmpty(springBeanFieldTypeList)) {
for (String springBeanFieldType : springBeanFieldTypeList) {
// 记录信息
recordStringMethodCallPossibleInfo(stringBuilder, springBeanFieldType, methodCallId, argSeq, JavaCG2MethodCallInfoTypeEnum.MCIT_TYPE,
typeCounter.addAndGet(), arrayElementFlag, "");
}
return;
}
}
}
// 处理方法调用可能的类型
String type = methodCallPossibleEntry.getType();
if (type != null) {
recordStringMethodCallPossibleInfo(stringBuilder, type, methodCallId, argSeq, JavaCG2MethodCallInfoTypeEnum.MCIT_TYPE, typeCounter.addAndGet(),
arrayElementFlag, "");
}
}
// 记录方法调用可能的信息
private void recordStringMethodCallPossibleInfo(StringBuilder stringBuilder, String data, int methodCallId, int argSeq, JavaCG2MethodCallInfoTypeEnum type, int seq,
String arrayElementFlag, String valueType) {
/*
文件格式：
方法调用ID
参数序号
值的序号
类型（类型/值/base64后的值/静态变量）
是否为数组类型
值（类型/值/base64后的值/静态变量）
*/
if (data == null) {
return;
}
String appendedData = JavaCG2FileUtil.appendFileColumn(
String.valueOf(methodCallId),
String.valueOf(argSeq),
String.valueOf(seq),
type.getType(),
arrayElementFlag,
valueType,
data,
callerFullMethod
);
stringBuilder.append(appendedData).append(JavaCG2Constants.NEW_LINE);
}
// 处理方法调用可能的值
private void recordStringMethodCallPossibleValue(StringBuilder stringBuilder, MethodCallPossibleEntry methodCallPossibleEntry, int methodCallId, int argSeq, String argType,
int seq, String arrayElementFlag) {
Object value = methodCallPossibleEntry.getValue();
if (value == null) {
return;
}
JavaCG2MethodCallInfoTypeEnum type = JavaCG2MethodCallInfoTypeEnum.MCIT_VALUE;
String strValue;
if (value instanceof String) {
// 参数值类型为String
strValue = (String) value;
} else {
strValue = value.toString();
}
// 假如值中包含可能导致文件解析时格式不符合预期的字符，则需要进行base64编码
if (StringUtils.containsAny(strValue, "\r", "\n", "\t")) {
strValue = JavaCG2Util.base64Encode(strValue);
type = JavaCG2MethodCallInfoTypeEnum.MCIT_BASE64_VALUE;
}
// 值的类型，若方法参数类型为Object则使用值的类型
String valueType;
if (StringUtils.equalsAny(argType, JavaCG2CommonNameConstants.CLASS_NAME_OBJECT, JavaCG2CommonNameConstants.CLASS_NAME_CHAR_SEQUENCE)) {
// 假如方法参数类型为Object或CharSequence（StringUtils:indexOf(java.lang.CharSequence），则使用参数对象的类型
valueType = methodCallPossibleEntry.getValueType();
} else {
valueType = argType;
}
// 记录可能的值
recordStringMethodCallPossibleInfo(stringBuilder, strValue, methodCallId, argSeq, type, seq, arrayElementFlag, valueType);
}
/**
* 生成新的方法调用ID
*
* @return
*/
private int genNewCallId() {
int newCallId = callIdCounter.addAndGet();
if (parseMethodCallTypeValueFlag) {
// 记录方法调用指令位置与call_id对应关系
invokeInstructionPositionCallIdMap.put(ih.getPosition(), newCallId);
}
return newCallId;
}
/**
* 根据方法调用指令位置查找对应的call_id
*
* @param invokeInstructionPosition
* @return
*/
private Integer getInvokeInstructionCallId(Integer invokeInstructionPosition) {
Integer callId = invokeInstructionPositionCallIdMap.get(invokeInstructionPosition);
if (callId == null) {
throw new JavaCG2RuntimeException("根据方法调用指令位置未查找到对应的call_id: " + invokeInstructionPosition);
}
return callId;
}
//
public void setRunnableImplClassMap(Map runnableImplClassMap) {
this.runnableImplClassMap = runnableImplClassMap;
}
public void setCallableImplClassMap(Map callableImplClassMap) {
this.callableImplClassMap = callableImplClassMap;
}
public void setTransactionCallbackImplClassMap(Map transactionCallbackImplClassMap) {
this.transactionCallbackImplClassMap = transactionCallbackImplClassMap;
}
public void setTransactionCallbackWithoutResultChildClassMap(Map transactionCallbackWithoutResultChildClassMap) {
this.transactionCallbackWithoutResultChildClassMap = transactionCallbackWithoutResultChildClassMap;
}
public void setThreadChildClassMap(Map threadChildClassMap) {
this.threadChildClassMap = threadChildClassMap;
}
public void setExtensionsManager(ExtensionsManager extensionsManager) {
this.extensionsManager = extensionsManager;
annotationAttributesFormatter = extensionsManager.getAnnotationAttributesFormatter();
}
public void setMethodCallWriter(Writer methodCallWriter) {
this.methodCallWriter = methodCallWriter;
}
public void setLambdaMethodInfoWriter(Writer lambdaMethodInfoWriter) {
this.lambdaMethodInfoWriter = lambdaMethodInfoWriter;
}
public void setMethodAnnotationWriter(Writer methodAnnotationWriter) {
this.methodAnnotationWriter = methodAnnotationWriter;
}
public void setMethodArgAnnotationWriter(Writer methodArgAnnotationWriter) {
this.methodArgAnnotationWriter = methodArgAnnotationWriter;
}
public void setMethodLineNumberWriter(Writer methodLineNumberWriter) {
this.methodLineNumberWriter = methodLineNumberWriter;
}
public void setMethodCallInfoWriter(Writer methodCallInfoWriter) {
this.methodCallInfoWriter = methodCallInfoWriter;
}
public void setMethodCallMethodCallReturnWriter(Writer methodCallMethodCallReturnWriter) {
this.methodCallMethodCallReturnWriter = methodCallMethodCallReturnWriter;
}
public void setMethodCallStaticFieldWriter(Writer methodCallStaticFieldWriter) {
this.methodCallStaticFieldWriter = methodCallStaticFieldWriter;
}
public void setMethodReturnArgSeqWriter(Writer methodReturnArgSeqWriter) {
this.methodReturnArgSeqWriter = methodReturnArgSeqWriter;
}
public void setMethodReturnCallIdWriter(Writer methodReturnCallIdWriter) {
this.methodReturnCallIdWriter = methodReturnCallIdWriter;
}
public void setMethodCatchWriter(Writer methodCatchWriter) {
this.methodCatchWriter = methodCatchWriter;
}
public void setMethodFinallyWriter(Writer methodFinallyWriter) {
this.methodFinallyWriter = methodFinallyWriter;
}
public void setMethodThrowWriter(Writer methodThrowWriter) {
this.methodThrowWriter = methodThrowWriter;
}
public void setStaticFinalFieldMethodCallIdWriter(Writer staticFinalFieldMethodCallIdWriter) {
this.staticFinalFieldMethodCallIdWriter = staticFinalFieldMethodCallIdWriter;
}
public void setFieldRelationshipWriter(Writer fieldRelationshipWriter) {
this.fieldRelationshipWriter = fieldRelationshipWriter;
}
public void setLastJarNum(int lastJarNum) {
this.lastJarNum = lastJarNum;
}
public void setExistsSameMethodNameAndArgs(boolean existsSameMethodNameAndArgs) {
this.existsSameMethodNameAndArgs = existsSameMethodNameAndArgs;
}
public void setClassAndJarNum(ClassAndJarNum classAndJarNum) {
this.classAndJarNum = classAndJarNum;
}
public void setStaticFinalFieldNameTypeMap(Map staticFinalFieldNameTypeMap) {
this.staticFinalFieldNameTypeMap = staticFinalFieldNameTypeMap;
}
}
