public byte[] buildClass(ClassDefinition core, ClassLoader classLoader)
throws IOException, SecurityException, IllegalArgumentException, ClassNotFoundException,
NoSuchMethodException, IllegalAccessException, InvocationTargetException,
InstantiationException, NoSuchFieldException {
FieldVisitor fv;
MethodVisitor mv;
// get the method bitmask
BitSet mask = traitRegistry.getFieldMask(trait.getName(), core.getDefinedClass().getName());
String name = TraitFactory.getPropertyWrapperName(trait, core);
String internalWrapper = BuildUtils.getInternalType(name);
String descrCore = Type.getDescriptor(core.getDefinedClass());
String internalCore = Type.getInternalName(core.getDefinedClass());
ClassWriter cw =
createClassWriter(
classLoader,
ACC_PUBLIC + ACC_SUPER,
internalWrapper,
Type.getDescriptor(Object.class)
+ Type.getDescriptor(Map.class)
+ Type.getDescriptor(MapWrapper.class),
//
// "Ljava/lang/Object;Ljava/util/Map<Ljava/lang/String;Ljava/lang/Object;>;Lorg/drools/factmodel/traits/MapWrapper;",
Type.getInternalName(Object.class),
new String[] {
Type.getInternalName(Map.class),
Type.getInternalName(MapWrapper.class),
Type.getInternalName(Serializable.class)
});
cw.visitInnerClass(
Type.getInternalName(Map.Entry.class),
Type.getInternalName(Map.class),
"Entry",
ACC_PUBLIC + ACC_STATIC + ACC_ABSTRACT + ACC_INTERFACE);
{
fv = cw.visitField(0, "object", descrCore, null, null);
fv.visitEnd();
}
{
fv =
cw.visitField(
0,
"map",
Type.getDescriptor(Map.class),
"Ljava/util/Map<Ljava/lang/String;Ljava/lang/Object;>;",
null);
fv.visitEnd();
}
{
mv =
cw.visitMethod(
ACC_PUBLIC,
"<init>",
"(" + descrCore + Type.getDescriptor(Map.class) + ")V",
"(" + descrCore + "Ljava/util/Map<Ljava/lang/String;Ljava/lang/Object;>;)V",
null);
mv.visitCode();
mv.visitVarInsn(ALOAD, 0);
mv.visitMethodInsn(INVOKESPECIAL, Type.getInternalName(Object.class), "<init>", "()V");
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ALOAD, 1);
mv.visitFieldInsn(PUTFIELD, internalWrapper, "object", descrCore);
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ALOAD, 2);
mv.visitFieldInsn(PUTFIELD, internalWrapper, "map", Type.getDescriptor(Map.class));
mv.visitVarInsn(ALOAD, 1);
mv.visitVarInsn(ALOAD, 2);
mv.visitMethodInsn(
INVOKEVIRTUAL,
internalCore,
"_setDynamicProperties",
"(" + Type.getDescriptor(Map.class) + ")V");
initSoftFields(mv, trait, core, internalWrapper, mask, 2);
mv.visitInsn(RETURN);
mv.visitMaxs(0, 0);
mv.visitEnd();
}
buildSize(cw, name, core.getClassName(), trait, core, mask);
buildIsEmpty(cw, name, core.getClassName(), trait, core, mask);
buildGet(cw, name, core.getClassName(), trait, core, mask);
buildPut(cw, name, core.getClassName(), trait, core, mask);
buildClear(cw, name, core.getClassName(), trait, core, mask);
buildRemove(cw, name, core.getClassName(), trait, core, mask);
buildContainsKey(cw, name, core.getClassName(), trait, core, mask);
buildContainsValue(cw, name, core.getClassName(), trait, core, mask);
buildKeyset(cw, name, core.getClassName(), trait, core, mask);
buildValues(cw, name, core.getClassName(), trait, core, mask);
buildEntryset(cw, name, core.getClassName(), trait, core, mask);
buildCommonMethods(cw, name);
cw.visitEnd();
return cw.toByteArray();
}
