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OPENJPA-2911 newEmbeddedPCData in ASM

This commit is contained in:
Mark Struberg 2023-07-24 10:13:45 +02:00
parent 279412c71a
commit a8cb9d9d3d
1 changed files with 28 additions and 20 deletions
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48
openjpa-kernel/src/main/java/org/apache/openjpa/datacache/DataCachePCDataGenerator.java
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@ -44,6 +44,7 @@ import org.apache.xbean.asm9.tree.JumpInsnNode;
import org.apache.xbean.asm9.tree.LabelNode;
import org.apache.xbean.asm9.tree.MethodInsnNode;
import org.apache.xbean.asm9.tree.MethodNode;
import org.apache.xbean.asm9.tree.TypeInsnNode;
import org.apache.xbean.asm9.tree.VarInsnNode;
import serp.bytecode.BCClass;
@ -94,12 +95,12 @@ public class DataCachePCDataGenerator extends PCDataGenerator {
protected void decorate(ClassNodeTracker cnt, ClassMetaData meta) {
enhanceToData(cnt);
enhanceToNestedData(cnt);
replaceNewEmbeddedPCData(cnt);
//X TODO REMOVE
BCClass _bc = new Project().loadClass(cnt.getClassNode().name.replace("/", "."));
AsmHelper.readIntoBCClass(cnt, _bc);
replaceNewEmbeddedPCData(_bc);
addSynchronization(_bc);
addTimeout(_bc);
@ -216,26 +217,33 @@ public class DataCachePCDataGenerator extends PCDataGenerator {
instructions.add(new InsnNode(Opcodes.ARETURN));
}
private void replaceNewEmbeddedPCData(BCClass bc) {
BCMethod meth = bc.declareMethod("newEmbeddedPCData",
AbstractPCData.class, new Class[]{ OpenJPAStateManager.class });
Code code = meth.getCode(true);
private void replaceNewEmbeddedPCData(ClassNodeTracker cnt) {
ClassNode classNode = cnt.getClassNode();
MethodNode meth = new MethodNode(Opcodes.ACC_PUBLIC,
"newEmbeddedPCData",
Type.getMethodDescriptor(Type.getType(AbstractPCData.class),
Type.getType(OpenJPAStateManager.class)),
null, null);
classNode.methods.add(meth);
final InsnList instructions = meth.instructions;
// return new DataCachePCDataImpl(sm.getObjectId(), sm.getMetaData());
code.anew().setType(DataCachePCDataImpl.class);
code.dup();
code.aload().setParam(0);
code.invokeinterface().setMethod(OpenJPAStateManager.class, "getId",
Object.class, null);
code.aload().setParam(0);
code.invokeinterface().setMethod(OpenJPAStateManager.class,
"getMetaData", ClassMetaData.class, null);
code.invokespecial().setMethod(DataCachePCDataImpl.class, "<init>",
void.class, new Class[] { Object.class, ClassMetaData.class });
code.areturn();
code.calculateMaxLocals();
code.calculateMaxStack();
instructions.add(new TypeInsnNode(Opcodes.NEW, Type.getInternalName(DataCachePCDataImpl.class)));
instructions.add(new InsnNode(Opcodes.DUP));
instructions.add(new VarInsnNode(Opcodes.ALOAD, 1)); // 1st param
instructions.add(new MethodInsnNode(Opcodes.INVOKEINTERFACE,
Type.getInternalName(OpenJPAStateManager.class),
"getId",
Type.getMethodDescriptor(AsmHelper.TYPE_OBJECT)));
instructions.add(new VarInsnNode(Opcodes.ALOAD, 1)); // 1st param
instructions.add(new MethodInsnNode(Opcodes.INVOKEINTERFACE,
Type.getInternalName(OpenJPAStateManager.class),
"getMetaData",
Type.getMethodDescriptor(Type.getType(ClassMetaData.class))));
instructions.add(new MethodInsnNode(Opcodes.INVOKESPECIAL,
Type.getInternalName(DataCachePCDataImpl.class),
"<init>",
Type.getMethodDescriptor(Type.VOID_TYPE, AsmHelper.TYPE_OBJECT, Type.getType(ClassMetaData.class))));
instructions.add(new InsnNode(Opcodes.ARETURN));
}
/**