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OPENJPA-2911 AuxilaryEnhancer in ASM

This commit is contained in:
Mark Struberg 2023-07-14 12:15:54 +02:00
parent fb20da5063
commit 0ab02d6965
2 changed files with 24 additions and 25 deletions
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10
openjpa-kernel/src/main/java/org/apache/openjpa/enhance/PCEnhancer.java
View File

@ -605,10 +605,9 @@ public class PCEnhancer {
addAttachDetachCode();
addSerializationCode();
addCloningCode();
runAuxiliaryEnhancers();
AsmHelper.readIntoBCClass(pc, _pc);
runAuxiliaryEnhancers();
return ENHANCE_PC;
}
return ENHANCE_AWARE;
@ -4209,7 +4208,7 @@ public class PCEnhancer {
*/
private void runAuxiliaryEnhancers() {
for (AuxiliaryEnhancer auxEnhancer : _auxEnhancers) {
auxEnhancer.run(_pc, _meta);
auxEnhancer.run(pc.getClassNode(), _meta);
}
}
@ -5747,10 +5746,7 @@ public class PCEnhancer {
*/
public interface AuxiliaryEnhancer
{
void run (BCClass bc, ClassMetaData meta);
@Deprecated
boolean skipEnhance(BCMethod m);
void run (ClassNode classNode, ClassMetaData meta);
boolean skipEnhance(MethodNode m);
}

39
openjpa-tools/openjpa-fetch-statistics/src/main/java/org/apache/openjpa/enhance/stats/FetchStatisticsAuxEnhancer.java
View File

@ -28,10 +28,13 @@ import org.apache.openjpa.meta.AccessCode;
import org.apache.openjpa.meta.ClassMetaData;
import org.apache.openjpa.meta.FieldMetaData;
import org.apache.openjpa.util.asm.AsmHelper;
import org.apache.xbean.asm9.Opcodes;
import org.apache.xbean.asm9.Type;
import org.apache.xbean.asm9.tree.ClassNode;
import org.apache.xbean.asm9.tree.InsnList;
import org.apache.xbean.asm9.tree.MethodInsnNode;
import org.apache.xbean.asm9.tree.MethodNode;
import serp.bytecode.BCClass;
import serp.bytecode.BCMethod;
import serp.bytecode.Code;
/**
* FetchStatisticsAuxEnhancer adds the call back function to each persistent fields in the persistent entity which
@ -43,13 +46,8 @@ public class FetchStatisticsAuxEnhancer implements AuxiliaryEnhancer {
+ "(pc(.)*DetachedState)?(pc(.)*EnhancementContractVersion)?(pc(.)*ManagedFieldCount)?(pc(.)*GetVersion)?";
@Override
public void run(BCClass bcc, ClassMetaData cmd) {
addEnhancement(bcc, cmd);
}
@Override
public boolean skipEnhance(BCMethod arg0) {
return false;
public void run(ClassNode classNode, ClassMetaData cmd) {
addEnhancement(classNode, cmd);
}
@Override
@ -57,21 +55,26 @@ public class FetchStatisticsAuxEnhancer implements AuxiliaryEnhancer {
return false;
}
private void addEnhancement(BCClass bcc, ClassMetaData cmd) {
private void addEnhancement(ClassNode classNode, ClassMetaData cmd) {
Log log = cmd.getRepository().getConfiguration().getLog(OpenJPAConfiguration.LOG_RUNTIME);
FetchStatsCollector.setlogger(log);
for (BCMethod meth : bcc.getMethods()) {
String methodName = meth.getName();
String className = classNode.name.replace("/", ".");
for (MethodNode meth : classNode.methods) {
String methodName = meth.name;
FieldMetaData fmd = getFieldName(methodName, cmd);
if (fmd != null && needsTracking(fmd, methodName, cmd)) {
String fqn = bcc.getName() + "." + fmd.getName();
String fqn = className + "." + fmd.getName();
FetchStatsCollector.registerField(fqn);
FetchStatsCollector.registerEntity(cmd);
Code code = meth.getCode(false);
code.constant().setValue(fqn);
code.invokestatic().setMethod(FetchStatsCollector.class, "hit", void.class,
new Class[] { String.class });
InsnList instructions = new InsnList();
instructions.add(AsmHelper.getLoadConstantInsn(fqn));
instructions.add(new MethodInsnNode(Opcodes.INVOKESTATIC,
Type.getInternalName(FetchStatsCollector.class),
"hit",
Type.getMethodDescriptor(Type.VOID_TYPE, Type.getType(String.class))));
meth.instructions.insert(instructions);
}
}
}