92b09c9d79
Released 9.3.0 and start 9.4.0 ( #710 )
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* [maven-release-plugin] prepare release v9.3.0
* [maven-release-plugin] prepare for next development iteration
* Create changes-9.3.0.md
* Update CHANGES.md
2024-07-26 06:49:38 +08:00
eb1041675c
Release 9.2.0 begin 9.3.0 dev ( #678 )
2024-03-31 21:38:08 +08:00
4f2f81e181
Fix re-transform bug when enhanced class proxy parent method ( #659 )
2023-12-23 00:01:30 +08:00
4dd00e97e9
Release 9.1 and begin 9.2.0 ( #652 )
2023-12-01 23:31:19 -08:00
c82287e1dd
Add JDK21 Support ( #647 )
2023-11-10 14:56:48 +08:00
db54c65d09
Optimize bytebuddy type description performance ( #637 )
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### Improve the performance of type description of byte-buddy
The goal is to get the original class description at re-transform, so as to generate consistent results when the Skywalking agent is enhanced again (including implementing the EnhancedInstance interface, auxiliary fields and methods, etc.)
The previous type description used the `AgentBuilder.DescriptionStrategy.Default.POOL_FIRST` policy to get origin type description, which slows down the application startup, due to heavy I/O operations and parsing bytecode.
New way is to remove dynamic fields, methods and interfaces generated by SkyWalking Agent from `TypeDescription`, and **make it as origin type descripton**.
**Key feature** :
* No need to cache `TypeDescription` objects, less memory used.
* It only applies to the re-transform class processing flow and does not affect the startup process.
**Process flow:**
1. Find `TypeDescription` from commonly used type cache, such as primitive class.
2. Delegate to `AgentBuilder.DescriptionStrategy.Default.HYBRID`
3. Wrap `TypeDescription` by `SWTypeDescriptionWrapper` , remove fields, methods, interface generated by SkyWalking.
**Relative Issue:** https://github.com/apache/skywalking/issues/11460
2023-11-03 09:45:28 +08:00
6e47084501
Release 9.0.0 and set 9.1.0-SNAPSHOT for next iteration ( #600 )
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* [maven-release-plugin] prepare release v9.0.0
* [maven-release-plugin] prepare for next development iteration
* Create changes-9.0.0.md
* Update CHANGES.md
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Co-authored-by: Wu Sheng <“wu.sheng@foxmail.com”>
2023-08-29 11:57:56 +08:00
b9dd0f24b7
Update version to 9.0.0 with new change logs. ( #563 )
2023-06-25 09:18:28 +08:00
267aba8fad
Improve bytebuddy class enhance for retransform classes ( #561 )
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* SWAuxiliaryTypeNamingStrategy
Auxiliary type name pattern: <origin_class_name>$<name_trait>$auxiliary$<auxiliary_type_instance_hash>
* DelegateNamingResolver
Interceptor delegate field name pattern: <name_trait>$delegate$<class_name_hash>$<plugin_define_hash>$<intercept_point_hash>
* SWMethodNameTransformer
Renamed origin method pattern: <name_trait>$original$<method_name>$<method_description_hash>
* SWImplementationContextFactory
Method cache value field pattern: cachedValue$<name_trait>$<origin_class_name_hash>$<field_value_hash>
Accessor method name pattern: <renamed_origin_method>$accessor$<name_trait>$<origin_class_name_hash>
Here is an example of manipulated enhanced class with new naming policies of auxiliary classes, fields, and methods
```java
import sample.mybatis.controller.HotelController$sw$auxiliary$19cja42;
import sample.mybatis.controller.HotelController$sw$auxiliary$p257su0;
import sample.mybatis.domain.Hotel;
import sample.mybatis.service.HotelService;
@RequestMapping(value={"/hotel"})
@RestController
public class HotelController
implements EnhancedInstance {
@Autowired
@Lazy
private HotelService hotelService;
private volatile Object _$EnhancedClassField_ws;
// Interceptor delegate fields
public static volatile /* synthetic */ InstMethodsInter sw$delegate$td03673$ain2do0$8im5jm1;
public static volatile /* synthetic */ InstMethodsInter sw$delegate$td03673$ain2do0$edkmf61;
public static volatile /* synthetic */ ConstructorInter sw$delegate$td03673$ain2do0$qs9unv1;
public static volatile /* synthetic */ InstMethodsInter sw$delegate$td03673$fl4lnk1$m3ia3a2;
public static volatile /* synthetic */ InstMethodsInter sw$delegate$td03673$fl4lnk1$sufrvp1;
public static volatile /* synthetic */ ConstructorInter sw$delegate$td03673$fl4lnk1$cteu7s1;
// Origin method cache value field
private static final /* synthetic */ Method cachedValue$sw$td03673$g5sobj1;
public HotelController() {
this(null);
sw$delegate$td03673$ain2do0$qs9unv1.intercept(this, new Object[0]);
}
private /* synthetic */ HotelController(sw.auxiliary.p257su0 p257su02) {
}
@GetMapping(value={"city/{cityId}"})
public Hotel selectByCityId(@PathVariable(value="cityId") int n) {
// call interceptor with auxiliary type and parameters and origin method object
return (Hotel)sw$delegate$td03673$ain2do0$8im5jm1.intercept(this, new Object[]{n}, new HotelController$sw$auxiliary$19cja42(this, n), cachedValue$sw$td03673$g5sobj1);
}
// Renamed origin method
private /* synthetic */ Hotel sw$origin$selectByCityId$a8458p3(int cityId) {
/*22*/ return this.hotelService.selectByCityId(cityId);
}
// Accessor of renamed origin method, calling from auxiliary type
final /* synthetic */ Hotel sw$origin$selectByCityId$a8458p3$accessor$sw$td03673(int n) {
// Calling renamed origin method
return this.sw$origin$selectByCityId$a8458p3(n);
}
@Override
public Object getSkyWalkingDynamicField() {
return this._$EnhancedClassField_ws;
}
@Override
public void setSkyWalkingDynamicField(Object object) {
this._$EnhancedClassField_ws = object;
}
static {
ClassLoader.getSystemClassLoader().loadClass("org.apache.skywalking.apm.dependencies.net.bytebuddy.dynamic.Nexus").getMethod("initialize", Class.class, Integer.TYPE).invoke(null, HotelController.class, -1072476370);
// Method object
cachedValue$sw$td03673$g5sobj1 = HotelController.class.getMethod("selectByCityId", Integer.TYPE);
}
}
```
Auxiliary type of Constructor :
```java
class HotelController$sw$auxiliary$p257su0 {
}
```
Auxiliary type of `selectByCityId` method:
```java
class HotelController$sw$auxiliary$19cja42
implements Runnable,
Callable {
private HotelController argument0;
private int argument1;
public Object call() throws Exception {
return this.argument0.sw$origin$selectByCityId$a8458p3$accessor$sw$td03673(this.argument1);
}
@Override
public void run() {
this.argument0.sw$origin$selectByCityId$a8458p3$accessor$sw$td03673(this.argument1);
}
HotelController$sw$auxiliary$19cja42(HotelController hotelController, int n) {
this.argument0 = hotelController;
this.argument1 = n;
}
}
```
2023-06-24 20:50:10 +08:00
吴晟 Wu Sheng
Gong Dewei