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[강운덕] [LUCYSUS-1744] 바이트 코드 조작 클래스 별도 분리.

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git-svn-id: http://svn.bds.nhncorp.com/pe/hippo-tomcat-profiler/trunk@530 84d0f5b1-2673-498c-a247-62c4ff18d310
This commit is contained in:
Woonduk Kang
2012-08-22 08:27:36 +00:00
parent 2a06c2a348
commit a5ee994e8a
29 changed files with 225 additions and 159 deletions
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src/main/java/com/profiler/TomcatProfiler.java
+11 -33
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@@ -4,14 +4,14 @@ import java.lang.instrument.ClassFileTransformer;
import java.lang.instrument.IllegalClassFormatException;
import java.lang.instrument.Instrumentation;
import java.security.ProtectionDomain;
import java.util.logging.Level;
import java.util.logging.Logger;
import com.profiler.interceptor.bci.ByteCodeInstrumentor;
import com.profiler.interceptor.bci.JavaAssistByteCodeInstrumentor;
import com.profiler.modifier.DefaultModifierRegistry;
import com.profiler.modifier.Modifier;
import com.profiler.modifier.ModifierRegistry;
import javassist.ClassPool;
import javassist.NotFoundException;
import com.profiler.config.TomcatProfilerConfig;
@@ -21,7 +21,7 @@ public class TomcatProfiler implements ClassFileTransformer {
private String agentArgString = "";
private Instrumentation instrumentation;
private ClassPool classPool;
private ByteCodeInstrumentor byteCodeInstrumentor;
private final ModifierRegistry modifierRepository;
private TomcatProfilerConfig tomcatProfilerConfig;
@@ -35,13 +35,14 @@ public class TomcatProfiler implements ClassFileTransformer {
this.agentArgString = agentArgs;
this.instrumentation = inst;
this.instrumentation.addTransformer(this);
this.classPool = createClassPool();
this.modifierRepository = createModifierRegistry(this.classPool, tomcatProfilerConfig);
this.byteCodeInstrumentor = new JavaAssistByteCodeInstrumentor();
// this.classPool = createClassPool();
this.modifierRepository = createModifierRegistry(byteCodeInstrumentor, tomcatProfilerConfig);
this.tomcatProfilerConfig = tomcatProfilerConfig;
}
private ModifierRegistry createModifierRegistry(ClassPool classPool, TomcatProfilerConfig tomcatProfilerConfig) {
DefaultModifierRegistry modifierRepository = new DefaultModifierRegistry(classPool);
private ModifierRegistry createModifierRegistry(ByteCodeInstrumentor byteCodeInstrumentor, TomcatProfilerConfig tomcatProfilerConfig) {
DefaultModifierRegistry modifierRepository = new DefaultModifierRegistry(byteCodeInstrumentor);
modifierRepository.addTomcatModifier();
if (tomcatProfilerConfig.enableJdbcProfile()) {
modifierRepository.addJdbcModifier();
@@ -49,41 +50,18 @@ public class TomcatProfiler implements ClassFileTransformer {
return modifierRepository;
}
private ClassPool createClassPool() {
ClassPool classPool = new ClassPool(null);
classPool.appendSystemPath();
String catalinaHome = System.getProperty("catalina.home");
if (catalinaHome != null) {
if (logger.isLoggable(Level.INFO)) {
logger.info("CATALINA_HOME=" + catalinaHome);
}
appendClassPath(classPool, catalinaHome + "/lib/servlet-api.jar");
appendClassPath(classPool, catalinaHome + "/lib/catalina.jar");
}
return classPool;
}
private void appendClassPath(ClassPool classPool, String pathName) {
try {
classPool.appendClassPath(pathName);
} catch (NotFoundException e) {
if (logger.isLoggable(Level.WARNING)) {
logger.warning("lib not found. " + e.getMessage());
}
}
}
@Override
public byte[] transform(ClassLoader classLoader, String className, Class<?> classBeingRedefined, ProtectionDomain protectionDomain, byte[] classFileBuffer) throws IllegalClassFormatException {
Modifier findModifier = this.modifierRepository.findModifier(className);
if (findModifier == null) {
return null;
}
}
String javassistClassName = className.replace('/', '.');
return findModifier.modify(classLoader, javassistClassName, classFileBuffer);
}
}