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102
scouter.agent.java/src/scouter/agent/asm/UserExceptionASM.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,102 @@ | ||
| /* | ||
| * Copyright 2015 the original author or authors. | ||
| * @https://github.com/scouter-project/scouter | ||
| * | ||
| * 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. | ||
| */ | ||
|
|
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| package scouter.agent.asm; | ||
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|
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| import scouter.agent.ClassDesc; | ||
| import scouter.agent.Configure; | ||
| import scouter.agent.asm.util.AsmUtil; | ||
| import scouter.agent.asm.util.HookingSet; | ||
| import scouter.agent.trace.TraceMain; | ||
| import scouter.org.objectweb.asm.ClassVisitor; | ||
| import scouter.org.objectweb.asm.MethodVisitor; | ||
| import scouter.org.objectweb.asm.Opcodes; | ||
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|
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| import java.util.List; | ||
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| public class UserExceptionASM implements IASM, Opcodes { | ||
| String exceptionPatterns = HookingSet.classPattrensToMethodPatterns(Configure.getInstance().hook_exception_class_patterns, "<init>"); | ||
| String exceptionExcludePatterns = HookingSet.classPattrensToMethodPatterns(Configure.getInstance().hook_exception_exlude_class_patterns, "<init>"); | ||
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| private List<HookingSet> target = HookingSet.getHookingMethodSet(exceptionPatterns); | ||
| private List<HookingSet> excludeTarget = HookingSet.getHookingMethodSet(exceptionExcludePatterns); | ||
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| public ClassVisitor transform(ClassVisitor cv, String className, ClassDesc classDesc) { | ||
| for (int i = 0; i < target.size(); i++) { | ||
| HookingSet mset = target.get(i); | ||
| if (mset.classMatch.include(className)) { | ||
| for (int j = 0; j < excludeTarget.size(); j++) { | ||
| HookingSet excludeHookinSet = excludeTarget.get(j); | ||
| if (excludeHookinSet.classMatch.include(className)) { | ||
| return cv; | ||
| } | ||
| } | ||
| return new UserExceptionCV(cv, mset, className); | ||
| } | ||
| } | ||
| return cv; | ||
| } | ||
| } | ||
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| class UserExceptionCV extends ClassVisitor implements Opcodes { | ||
|
|
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| private HookingSet mset; | ||
| private String className; | ||
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| public UserExceptionCV(ClassVisitor cv, HookingSet mset, String className) { | ||
| super(ASM4, cv); | ||
| this.mset = mset; | ||
| this.className = className; | ||
| } | ||
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| @Override | ||
| public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) { | ||
| MethodVisitor mv = super.visitMethod(access, name, desc, signature, exceptions); | ||
| if (mv == null || mset.isA(name, desc) == false) { | ||
| return mv; | ||
| } | ||
| return new UserExceptionConsturtorMV(className, desc, mv); | ||
| } | ||
| } | ||
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| // /////////////////////////////////////////////////////////////////////////// | ||
| class UserExceptionConsturtorMV extends MethodVisitor implements Opcodes { | ||
| private static final String CLASS = TraceMain.class.getName().replace('.', '/'); | ||
| private static final String METHOD = "endExceptionConstructor"; | ||
| private static final String SIGNATURE = "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/Object;)V"; | ||
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| private String className; | ||
| private String methodDesc; | ||
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| public UserExceptionConsturtorMV(String classname, String methoddesc, MethodVisitor mv) { | ||
| super(ASM4, mv); | ||
| this.className = classname; | ||
| this.methodDesc = methoddesc; | ||
| } | ||
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| @Override | ||
| public void visitInsn(int opcode) { | ||
| if ((opcode >= IRETURN && opcode <= RETURN) || opcode == ATHROW) { | ||
| AsmUtil.PUSH(mv, className); | ||
| AsmUtil.PUSH(mv, methodDesc); | ||
| mv.visitVarInsn(Opcodes.ALOAD, 0); | ||
| mv.visitMethodInsn(Opcodes.INVOKESTATIC, CLASS, METHOD, SIGNATURE,false); | ||
| } | ||
| mv.visitInsn(opcode); | ||
| } | ||
| } | ||
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|
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