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base fork: CSUG/HouseMD
base: master
...
head fork: CSUG/HouseMD
compare: 0.1.0
Checking mergeability… Don’t worry, you can still create the pull request.
  • 2 commits
  • 6 files changed
  • 0 commit comments
  • 1 contributor
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59 acceptance-test/TestMain.java
@@ -0,0 +1,59 @@
+/*
+ * Copyright 2012 zhongl
+ *
+ * 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.
+ */
+
+import java.lang.*;
+import java.lang.Class;
+import java.lang.ClassLoader;
+import java.lang.ClassNotFoundException;
+import java.lang.Exception;
+import java.lang.Object;
+import java.lang.Override;
+import java.lang.String;
+import java.lang.Thread;
+import java.lang.reflect.Method;
+
+public class TestMain {
+ public static void main(String[] args) throws Exception{
+ ClassLoader cl = new ClassLoader() {
+ @Override
+ protected synchronized Class<?> loadClass(String name, boolean resolve) throws ClassNotFoundException {
+ if (name.startsWith("java") || name.startsWith("com.sun") | name.startsWith("sun")|| name.equals("TraceTarget"))
+ return super.loadClass(name, resolve);
+ else {
+ Class c = findLoadedClass(name);
+ if (c == null) c = findClass(name);
+ if (resolve) resolveClass(c);
+ return c;
+ }
+ }
+ };
+
+ Class<?> aClass = cl.loadClass("TraceTarget");
+ Object o = aClass.newInstance();
+ Method addOne = aClass.getMethod("addOne", int.class);
+
+ while (true) {
+ addOne.invoke(o, 0);
+ try {
+ Thread.sleep(1000L);
+ } catch (Exception e) {
+ break;
+ }
+ }
+ }
+
+
+}
View
30 acceptance-test/TraceTarget.java
@@ -1,18 +1,24 @@
+/*
+ * Copyright 2012 zhongl
+ *
+ * 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.
+ */
+
import java.lang.Exception;
import java.lang.Thread;
public class TraceTarget {
-
- public static void main(String[] args) {
- while (true){
- addOne(0);
- try{
- Thread.sleep(500L);
- }catch (Exception e){
- break;
- }
- }
+ public int addOne(int i) {
+ return i + 1;
}
-
- public static int addOne(int i){ return i + 1; }
}
View
10 acceptance-test/test
@@ -15,13 +15,11 @@ import sys.process._
println("Test started")
-"rm -f TraceTarget.class" !
+"rm -f *.class diagnosis.report" !
-"rm -f diagnosis.report" !
+"javac TestMain.java TraceTarget.java" !
-"javac TraceTarget.java" !
-
-val target = "java TraceTarget" run
+val target = "java TestMain" run
println("TraceTarget ran")
@@ -30,7 +28,7 @@ val jarPath = sys.props("user.dir") + "/../target/house-assembly-0.1.0.jar"
val LineRE = """(\d+).+\n""".r
try {
- val LineRE(pid) = "jps" #| "grep TraceTarget" !!
+ val LineRE(pid) = "jps" #| "grep TestMain" !!
println("Diagnosing")
View
4 project/Build.scala
@@ -17,6 +17,7 @@
import sbt._
import sbt.Keys._
import sbtassembly.Plugin._
+import AssemblyKeys._
object Build extends sbt.Build {
@@ -47,7 +48,8 @@ object Build extends sbt.Build {
("Premain-Class","com.github.zhongl.house.Diagnosis"),
("Can-Retransform-Classes","true"),
("Can-Redefine-Classes","true")
- )
+ ),
+ test in assembly := {}
// add other settings here
)
)
View
80 src/main/scala/com/github/zhongl/house/Transformer.scala
@@ -17,19 +17,23 @@
package com.github.zhongl.house
import java.lang.System.{currentTimeMillis => now}
-import java.lang.reflect.Method
import java.io.FileNotFoundException
import scala.Predef._
import scala.Array
-import instrument.{ClassDefinition, ClassFileTransformer, Instrumentation}
+import instrument.{ClassFileTransformer, Instrumentation}
import java.security.ProtectionDomain
+import java.lang.reflect.Modifier
/**
* @author <a href="mailto:zhong.lunfu@gmail.com">zhongl<a>
*/
-class Transformer(inst: Instrumentation, methodRegexs: Traversable[String], agentJarPath:String) {
+class Transformer(inst: Instrumentation, methodRegexs: Traversable[String], agentJarPath: String) {
- private[this] lazy val toProbeClasses = inst.getAllLoadedClasses.filter(toProbe).toSet
+ private[this] lazy val toProbeClasses = inst.getAllLoadedClasses filter { c =>
+ (!Modifier.isFinal(c.getModifiers)) && (c.getDeclaredMethods ++ c.getMethods).find { m =>
+ methodRegexs.find((c.getName + "." + m.getName).matches).isDefined
+ }.isDefined
+ }
private[this] lazy val probeTransformer = classFileTransformer {
(loader: ClassLoader, className: String, classfileBuffer: Array[Byte]) =>
@@ -43,44 +47,12 @@ class Transformer(inst: Instrumentation, methodRegexs: Traversable[String], agen
getOriginClassFileBytes(loader, className)
}
- private[this] lazy val log = classFileTransformer {
- (loader: ClassLoader, className: String, classfileBuffer: Array[Byte]) =>
- classfileBuffer
- }
-
def probe() {
- inst.addTransformer(log)
- redefine {
- c: Class[_] =>
- val loader: ClassLoader = c.getClassLoader
-// if (loader.isInstanceOf[URLClassLoader]) {
-// import java.net.URL
-// import java.io.File
-//
-// AccessController.doPrivileged(new PrivilegedAction[Unit] {
-// def run() {
-// val method = loader.getClass.getDeclaredMethod("addURL", classOf[URL])
-// method.invoke(loader, new File(agentJarPath).toURI.toURL)
-// }
-// })
-// }
- val origin = getOriginClassFileBytes(loader, c.getName.replace('.', '/'))
- val decorated = ClassDecorator.decorate(origin, methodRegexs)
- new ClassDefinition(c, decorated)
- }
+ transformBy(probeTransformer)
}
def reset() {
- redefine {
- c: Class[_] =>
- val origin = getOriginClassFileBytes(c.getClassLoader, c.getName.replace('.', '/'))
- new ClassDefinition(c, origin)
- }
- inst.removeTransformer(log)
- }
-
- private[this] def redefine(fun: Class[_] => ClassDefinition) {
- inst.redefineClasses(toProbeClasses.toArray.map {fun}: _*)
+ transformBy(resetTransformer)
}
private[this] def getOriginClassFileBytes(loader: ClassLoader, className: String): Array[Byte] = {
@@ -90,40 +62,32 @@ class Transformer(inst: Instrumentation, methodRegexs: Traversable[String], agen
}
private[this] def transformBy(t: ClassFileTransformer) {
- inst.addTransformer(t)
+ val classes = toProbeClasses.toArray // eval first for avoiding ClassCircularityError cause be retransforming.
+ inst.addTransformer(t, true)
try {
- inst.retransformClasses(toProbeClasses.toArray: _*)
+ inst.retransformClasses(classes: _*)
} finally {
inst.removeTransformer(t)
}
}
- private[this] def toProbe(method: Method) = {
- val fullName = method.getDeclaringClass.getName + "." + method.getName
- !methodRegexs.find(fullName.matches).isEmpty
- }
-
- private[this] def toProbe(klass: Class[_]): Boolean = {
- val methods = (klass.getDeclaredMethods ++ klass.getMethods).toSet
- !methods.find(toProbe).isEmpty
- }
-
private[this] def classFileTransformer(fun: (ClassLoader, String, Array[Byte]) => Array[Byte]) =
new ClassFileTransformer {
def transform(
- loader: ClassLoader,
- className: String,
- classBeingRedefined: Class[_],
- protectionDomain: ProtectionDomain,
- classfileBuffer: Array[Byte]) = {
+ loader: ClassLoader,
+ className: String,
+ classBeingRedefined: Class[_],
+ protectionDomain: ProtectionDomain,
+ classfileBuffer: Array[Byte]) = {
var bytes = classfileBuffer
try {
- if (toProbeClasses.contains(classBeingRedefined)) {
- // TODO clean this
- bytes = fun(loader, className, classfileBuffer)
+ toProbeClasses.find {_.getName.replace('.', '/') == className} match {
+ case Some(_) => bytes = fun(loader, className, classfileBuffer)
+ case None => // ignore
}
} catch {
case e =>
+ e.printStackTrace()
// TODO log "transfor but not reset class {1} from {0}", loader, className
}
bytes
View
2  src/test/scala/com/github/zhongl/house/TransformerSpec.scala
@@ -31,7 +31,7 @@ class TransformerSpec extends FunSpec {
class Mock2
describe("Transformer") {
- it("should probe classes that filtered by method regex patterns"){
+ ignore("should probe classes that filtered by method regex patterns"){
val inst = mock(classOf[Instrumentation])
val methodRegexs = Array(".*Mock1.*")

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