Examples with AbstractClassMetaData org.datanucleus.metadata.AbstractClassMetaData used on opensource projects

Example 71 with AbstractClassMetaData

use of org.datanucleus.metadata.AbstractClassMetaData in project datanucleus-core by datanucleus.

the class RuntimeEnhancer method enhance.

public byte[] enhance(final String className, byte[] classdefinition, ClassLoader loader) {
    EnhancerClassLoader runtimeLoader = runtimeLoaderByLoader.get(loader);
    if (runtimeLoader == null) {
        runtimeLoader = new EnhancerClassLoader(loader);
        runtimeLoaderByLoader.put(loader, runtimeLoader);
    }
    // load unenhanced versions of classes from the EnhancerClassLoader
    clr.setPrimary(runtimeLoader);
    try {
        Class clazz = null;
        try {
            clazz = clr.classForName(className);
        } catch (ClassNotResolvedException e1) {
            DataNucleusEnhancer.LOGGER.debug(StringUtils.getStringFromStackTrace(e1));
            return null;
        }
        AbstractClassMetaData acmd = nucleusContext.getMetaDataManager().getMetaDataForClass(clazz, clr);
        if (acmd == null) {
            // metadata/class not found, ignore. happens in two conditions:
            // -class not in classpath
            // -class does not have metadata or annotation, so it's not supposed to be persistent
            DataNucleusEnhancer.LOGGER.debug("Class " + className + " cannot be enhanced because no metadata has been found.");
            return null;
        }
        // Create a ClassEnhancer to enhance this class
        ClassEnhancer classEnhancer = new ClassEnhancerImpl((ClassMetaData) acmd, clr, nucleusContext.getMetaDataManager(), JDOEnhancementNamer.getInstance(), classdefinition);
        // TODO Allow use of JPAEnhancementNamer?
        classEnhancer.setOptions(classEnhancerOptions);
        classEnhancer.enhance();
        return classEnhancer.getClassBytes();
    } catch (Throwable ex) {
        DataNucleusEnhancer.LOGGER.error(StringUtils.getStringFromStackTrace(ex));
    }
    return null;
}

Example 72 with AbstractClassMetaData

use of org.datanucleus.metadata.AbstractClassMetaData in project datanucleus-core by datanucleus.

the class CopyKeyFieldsFromObjectId method execute.

/**
 * Method to add the contents of the class method.
 */
public void execute() {
    visitor.visitCode();
    ClassMetaData cmd = enhancer.getClassMetaData();
    if (cmd.getIdentityType() == IdentityType.APPLICATION) {
        // application identity
        if (!cmd.isInstantiable()) {
            // Application identity but mapped-superclass with no PK defined, so just "return"
            Label startLabel = new Label();
            visitor.visitLabel(startLabel);
            visitor.visitInsn(Opcodes.RETURN);
            Label endLabel = new Label();
            visitor.visitLabel(endLabel);
            visitor.visitLocalVariable("this", getClassEnhancer().getClassDescriptor(), null, startLabel, endLabel, 0);
            visitor.visitLocalVariable(argNames[0], getNamer().getObjectIdFieldConsumerDescriptor(), null, startLabel, endLabel, 1);
            visitor.visitLocalVariable(argNames[1], EnhanceUtils.CD_Object, null, startLabel, endLabel, 2);
            visitor.visitMaxs(0, 3);
        } else {
            int[] pkFieldNums = cmd.getPKMemberPositions();
            String objectIdClass = cmd.getObjectidClass();
            String ACN_objectIdClass = objectIdClass.replace('.', '/');
            if (IdentityUtils.isSingleFieldIdentityClass(objectIdClass)) {
                // SingleFieldIdentity
                Label startLabel = new Label();
                visitor.visitLabel(startLabel);
                // if (fc == null) throw new IllegalArgumentException("...");
                visitor.visitVarInsn(Opcodes.ALOAD, 1);
                Label l1 = new Label();
                visitor.visitJumpInsn(Opcodes.IFNONNULL, l1);
                visitor.visitTypeInsn(Opcodes.NEW, "java/lang/IllegalArgumentException");
                visitor.visitInsn(Opcodes.DUP);
                visitor.visitLdcInsn("ObjectIdFieldConsumer is null");
                visitor.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/IllegalArgumentException", "<init>", "(Ljava/lang/String;)V");
                visitor.visitInsn(Opcodes.ATHROW);
                // if (!(oid instanceof LongIdentity)) throw new ClassCastException("...");
                visitor.visitLabel(l1);
                visitor.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
                visitor.visitVarInsn(Opcodes.ALOAD, 2);
                visitor.visitTypeInsn(Opcodes.INSTANCEOF, ACN_objectIdClass);
                Label l5 = new Label();
                visitor.visitJumpInsn(Opcodes.IFNE, l5);
                visitor.visitTypeInsn(Opcodes.NEW, "java/lang/ClassCastException");
                visitor.visitInsn(Opcodes.DUP);
                visitor.visitLdcInsn("oid is not instanceof " + objectIdClass);
                visitor.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/ClassCastException", "<init>", "(Ljava/lang/String;)V");
                visitor.visitInsn(Opcodes.ATHROW);
                // XXXIdentity o = (XXXIdentity) oid;
                visitor.visitLabel(l5);
                visitor.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
                visitor.visitVarInsn(Opcodes.ALOAD, 2);
                visitor.visitTypeInsn(Opcodes.CHECKCAST, ACN_objectIdClass);
                visitor.visitVarInsn(Opcodes.ASTORE, 3);
                // fc.storeXXXField(1, o.getKey());
                Label l9 = new Label();
                visitor.visitLabel(l9);
                visitor.visitVarInsn(Opcodes.ALOAD, 1);
                EnhanceUtils.addBIPUSHToMethod(visitor, pkFieldNums[0]);
                AbstractMemberMetaData fmd = cmd.getMetaDataForManagedMemberAtAbsolutePosition(pkFieldNums[0]);
                Class primitiveType = ClassUtils.getPrimitiveTypeForType(fmd.getType());
                if (primitiveType != null) {
                    // The PK field is a primitive wrapper so create wrapper from getKey()
                    String ACN_fieldType = fmd.getTypeName().replace('.', '/');
                    String getKeyReturnDesc = Type.getDescriptor(primitiveType);
                    visitor.visitVarInsn(Opcodes.ALOAD, 3);
                    visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, ACN_objectIdClass, "getKey", "()" + getKeyReturnDesc);
                    visitor.visitMethodInsn(Opcodes.INVOKESTATIC, ACN_fieldType, "valueOf", "(" + getKeyReturnDesc + ")L" + ACN_fieldType + ";");
                    visitor.visitMethodInsn(Opcodes.INVOKEINTERFACE, getNamer().getObjectIdFieldConsumerAsmClassName(), "storeObjectField", "(I" + EnhanceUtils.CD_Object + ")V");
                } else {
                    // PK field isn't a primitive wrapper
                    visitor.visitVarInsn(Opcodes.ALOAD, 3);
                    visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, ACN_objectIdClass, "getKey", "()" + getNamer().getTypeDescriptorForSingleFieldIdentityGetKey(objectIdClass));
                    visitor.visitMethodInsn(Opcodes.INVOKEINTERFACE, getNamer().getObjectIdFieldConsumerAsmClassName(), "store" + getNamer().getTypeNameForUseWithSingleFieldIdentity(objectIdClass) + "Field", "(I" + getNamer().getTypeDescriptorForSingleFieldIdentityGetKey(objectIdClass) + ")V");
                }
                visitor.visitInsn(Opcodes.RETURN);
                Label endLabel = new Label();
                visitor.visitLabel(endLabel);
                visitor.visitLocalVariable("this", getClassEnhancer().getClassDescriptor(), null, startLabel, endLabel, 0);
                visitor.visitLocalVariable(argNames[0], getNamer().getObjectIdFieldConsumerDescriptor(), null, startLabel, endLabel, 1);
                visitor.visitLocalVariable(argNames[1], EnhanceUtils.CD_Object, null, startLabel, endLabel, 2);
                visitor.visitLocalVariable("o", getNamer().getSingleFieldIdentityDescriptor(objectIdClass), null, l9, endLabel, 3);
                visitor.visitMaxs(3, 4);
            } else {
                // User-provided app identity, and compound identity
                // Put try-catch around the field setting (for reflection cases)
                Label l0 = new Label();
                Label l1 = new Label();
                Label l2 = new Label();
                visitor.visitTryCatchBlock(l0, l1, l2, "java/lang/Exception");
                Label startLabel = new Label();
                visitor.visitLabel(startLabel);
                visitor.visitVarInsn(Opcodes.ALOAD, 1);
                Label l4 = new Label();
                visitor.visitJumpInsn(Opcodes.IFNONNULL, l4);
                visitor.visitTypeInsn(Opcodes.NEW, "java/lang/IllegalArgumentException");
                visitor.visitInsn(Opcodes.DUP);
                visitor.visitLdcInsn("ObjectIdFieldConsumer is null");
                visitor.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/IllegalArgumentException", "<init>", "(Ljava/lang/String;)V");
                visitor.visitInsn(Opcodes.ATHROW);
                visitor.visitLabel(l4);
                visitor.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
                visitor.visitVarInsn(Opcodes.ALOAD, 2);
                visitor.visitTypeInsn(Opcodes.INSTANCEOF, ACN_objectIdClass);
                Label l5 = new Label();
                visitor.visitJumpInsn(Opcodes.IFNE, l5);
                visitor.visitTypeInsn(Opcodes.NEW, "java/lang/ClassCastException");
                visitor.visitInsn(Opcodes.DUP);
                visitor.visitLdcInsn("oid is not instanceof " + objectIdClass);
                visitor.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/ClassCastException", "<init>", "(Ljava/lang/String;)V");
                visitor.visitInsn(Opcodes.ATHROW);
                visitor.visitLabel(l5);
                visitor.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
                visitor.visitVarInsn(Opcodes.ALOAD, 2);
                visitor.visitTypeInsn(Opcodes.CHECKCAST, ACN_objectIdClass);
                visitor.visitVarInsn(Opcodes.ASTORE, 3);
                visitor.visitLabel(l0);
                // Copy the PK members using the appropriate method for each field/property
                Label reflectionFieldStart = null;
                for (int i = 0; i < pkFieldNums.length; i++) {
                    AbstractMemberMetaData fmd = enhancer.getClassMetaData().getMetaDataForManagedMemberAtAbsolutePosition(pkFieldNums[i]);
                    String fieldTypeDesc = Type.getDescriptor(fmd.getType());
                    String typeMethodName = EnhanceUtils.getTypeNameForPersistableMethod(fmd.getType());
                    int pkFieldModifiers = ClassUtils.getModifiersForFieldOfClass(enhancer.getClassLoaderResolver(), objectIdClass, fmd.getName());
                    // Check if the PK field type is a PC (CompoundIdentity)
                    AbstractClassMetaData acmd = enhancer.getMetaDataManager().getMetaDataForClass(fmd.getType(), enhancer.getClassLoaderResolver());
                    if (acmd != null && acmd.getIdentityType() != IdentityType.NONDURABLE) {
                        // CompoundIdentity, this field of the PK is a PC
                        visitor.visitVarInsn(Opcodes.ALOAD, 1);
                        EnhanceUtils.addBIPUSHToMethod(visitor, fmd.getFieldId());
                        visitor.visitVarInsn(Opcodes.ALOAD, 0);
                        visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, getClassEnhancer().getASMClassName(), getNamer().getGetExecutionContextMethodName(), "()L" + getNamer().getExecutionContextAsmClassName() + ";");
                        visitor.visitVarInsn(Opcodes.ALOAD, 3);
                        // TODO Cater for property, or private field cases
                        visitor.visitFieldInsn(Opcodes.GETFIELD, ACN_objectIdClass, fmd.getName(), "L" + acmd.getObjectidClass().replace('.', '/') + ";");
                        visitor.visitInsn(Opcodes.ICONST_0);
                        visitor.visitMethodInsn(Opcodes.INVOKEINTERFACE, getNamer().getExecutionContextAsmClassName(), "findObject", "(Ljava/lang/Object;Z)Ljava/lang/Object;");
                        visitor.visitMethodInsn(Opcodes.INVOKEINTERFACE, getNamer().getObjectIdFieldConsumerAsmClassName(), "storeObjectField", "(ILjava/lang/Object;)V");
                    } else {
                        // Standard application-identity
                        if (fmd instanceof PropertyMetaData) {
                            // Field in PK is property, hence use getXXX in PK
                            visitor.visitVarInsn(Opcodes.ALOAD, 1);
                            EnhanceUtils.addBIPUSHToMethod(visitor, fmd.getFieldId());
                            visitor.visitVarInsn(Opcodes.ALOAD, 3);
                            visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, ACN_objectIdClass, ClassUtils.getJavaBeanGetterName(fmd.getName(), fmd.getTypeName().equals("boolean")), "()" + Type.getDescriptor(fmd.getType()));
                            visitor.visitMethodInsn(Opcodes.INVOKEINTERFACE, getNamer().getObjectIdFieldConsumerAsmClassName(), "store" + typeMethodName + "Field", "(I" + EnhanceUtils.getTypeDescriptorForEnhanceMethod(fmd.getType()) + ")V");
                        } else if (Modifier.isPublic(pkFieldModifiers)) {
                            // Field in PK is public so access directly
                            visitor.visitVarInsn(Opcodes.ALOAD, 1);
                            EnhanceUtils.addBIPUSHToMethod(visitor, fmd.getFieldId());
                            visitor.visitVarInsn(Opcodes.ALOAD, 3);
                            visitor.visitFieldInsn(Opcodes.GETFIELD, ACN_objectIdClass, fmd.getName(), fieldTypeDesc);
                            visitor.visitMethodInsn(Opcodes.INVOKEINTERFACE, getNamer().getObjectIdFieldConsumerAsmClassName(), "store" + typeMethodName + "Field", "(I" + EnhanceUtils.getTypeDescriptorForEnhanceMethod(fmd.getType()) + ")V");
                        } else {
                            // Field in PK is protected/private so use reflection, generating
                            // "Field field = o.getClass().getDeclaredField("pmIDFloat");"
                            // "field.setAccessible(true);"
                            // "fc.storeObjectField(1, field.get(o));"
                            visitor.visitVarInsn(Opcodes.ALOAD, 3);
                            visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Object", "getClass", "()Ljava/lang/Class;");
                            visitor.visitLdcInsn(fmd.getName());
                            visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Class", "getDeclaredField", "(Ljava/lang/String;)Ljava/lang/reflect/Field;");
                            visitor.visitVarInsn(Opcodes.ASTORE, 4);
                            if (reflectionFieldStart == null) {
                                reflectionFieldStart = new Label();
                                visitor.visitLabel(reflectionFieldStart);
                            }
                            visitor.visitVarInsn(Opcodes.ALOAD, 4);
                            visitor.visitInsn(Opcodes.ICONST_1);
                            visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/reflect/Field", "setAccessible", "(Z)V");
                            visitor.visitVarInsn(Opcodes.ALOAD, 1);
                            EnhanceUtils.addBIPUSHToMethod(visitor, fmd.getFieldId());
                            visitor.visitVarInsn(Opcodes.ALOAD, 4);
                            visitor.visitVarInsn(Opcodes.ALOAD, 3);
                            if (fmd.getTypeName().equals("boolean")) {
                                visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/reflect/Field", "getBoolean", "(Ljava/lang/Object;)Z");
                            } else if (fmd.getTypeName().equals("byte")) {
                                visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/reflect/Field", "getByte", "(Ljava/lang/Object;)B");
                            } else if (fmd.getTypeName().equals("char")) {
                                visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/reflect/Field", "getChar", "(Ljava/lang/Object;)C");
                            } else if (fmd.getTypeName().equals("double")) {
                                visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/reflect/Field", "getDouble", "(Ljava/lang/Object;)D");
                            } else if (fmd.getTypeName().equals("float")) {
                                visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/reflect/Field", "getFloat", "(Ljava/lang/Object;)F");
                            } else if (fmd.getTypeName().equals("int")) {
                                visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/reflect/Field", "getInt", "(Ljava/lang/Object;)I");
                            } else if (fmd.getTypeName().equals("long")) {
                                visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/reflect/Field", "getLong", "(Ljava/lang/Object;)L");
                            } else if (fmd.getTypeName().equals("short")) {
                                visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/reflect/Field", "getShort", "(Ljava/lang/Object;)S");
                            } else if (fmd.getTypeName().equals("java.lang.String")) {
                                visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/reflect/Field", "get", "(Ljava/lang/Object;)Ljava/lang/Object;");
                                visitor.visitTypeInsn(Opcodes.CHECKCAST, "java/lang/String");
                            } else {
                                visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/reflect/Field", "get", "(Ljava/lang/Object;)Ljava/lang/Object;");
                            }
                            visitor.visitMethodInsn(Opcodes.INVOKEINTERFACE, getNamer().getObjectIdFieldConsumerAsmClassName(), "store" + typeMethodName + "Field", "(I" + EnhanceUtils.getTypeDescriptorForEnhanceMethod(fmd.getType()) + ")V");
                        }
                    }
                }
                // catch of the try-catch
                visitor.visitLabel(l1);
                Label l20 = new Label();
                visitor.visitJumpInsn(Opcodes.GOTO, l20);
                visitor.visitLabel(l2);
                visitor.visitFrame(Opcodes.F_FULL, 4, new Object[] { getClassEnhancer().getASMClassName(), getClassEnhancer().getNamer().getObjectIdFieldConsumerAsmClassName(), "java/lang/Object", ACN_objectIdClass }, 1, new Object[] { "java/lang/Exception" });
                visitor.visitVarInsn(Opcodes.ASTORE, 4);
                visitor.visitLabel(l20);
                visitor.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
                visitor.visitInsn(Opcodes.RETURN);
                Label endLabel = new Label();
                visitor.visitLabel(endLabel);
                visitor.visitLocalVariable("this", getClassEnhancer().getClassDescriptor(), null, startLabel, endLabel, 0);
                visitor.visitLocalVariable(argNames[0], getNamer().getObjectIdFieldConsumerDescriptor(), null, startLabel, endLabel, 1);
                visitor.visitLocalVariable(argNames[1], EnhanceUtils.CD_Object, null, startLabel, endLabel, 2);
                visitor.visitLocalVariable("o", "L" + ACN_objectIdClass + ";", null, l0, endLabel, 3);
                if (reflectionFieldStart != null) {
                    visitor.visitLocalVariable("field", "Ljava/lang/reflect/Field;", null, reflectionFieldStart, l2, 4);
                    visitor.visitMaxs(4, 5);
                } else {
                    visitor.visitMaxs(4, 4);
                }
            }
        }
    } else {
        // datastore/nondurable identity
        Label startLabel = new Label();
        visitor.visitLabel(startLabel);
        visitor.visitInsn(Opcodes.RETURN);
        Label endLabel = new Label();
        visitor.visitLabel(endLabel);
        visitor.visitLocalVariable("this", getClassEnhancer().getClassDescriptor(), null, startLabel, endLabel, 0);
        visitor.visitLocalVariable(argNames[0], "L" + getNamer().getObjectIdFieldConsumerAsmClassName() + ";", null, startLabel, endLabel, 1);
        visitor.visitLocalVariable(argNames[1], EnhanceUtils.CD_Object, null, startLabel, endLabel, 2);
        visitor.visitMaxs(0, 3);
    }
    visitor.visitEnd();
}

Example 73 with AbstractClassMetaData

use of org.datanucleus.metadata.AbstractClassMetaData in project datanucleus-core by datanucleus.

the class MakeDirty method execute.

/**
 * Method to add the contents of the class method.
 */
public void execute() {
    AbstractClassMetaData cmd = getClassEnhancer().getClassMetaData();
    String pcSuperclassName = cmd.getPersistableSuperclass();
    visitor.visitCode();
    Label startLabel = new Label();
    visitor.visitLabel(startLabel);
    visitor.visitVarInsn(Opcodes.ALOAD, 0);
    visitor.visitFieldInsn(Opcodes.GETFIELD, getClassEnhancer().getASMClassName(), getNamer().getStateManagerFieldName(), getNamer().getStateManagerDescriptor());
    Label l1 = new Label();
    visitor.visitJumpInsn(Opcodes.IFNULL, l1);
    visitor.visitVarInsn(Opcodes.ALOAD, 0);
    visitor.visitFieldInsn(Opcodes.GETFIELD, getClassEnhancer().getASMClassName(), getNamer().getStateManagerFieldName(), getNamer().getStateManagerDescriptor());
    visitor.visitVarInsn(Opcodes.ALOAD, 0);
    visitor.visitVarInsn(Opcodes.ALOAD, 1);
    visitor.visitMethodInsn(Opcodes.INVOKEINTERFACE, getNamer().getStateManagerAsmClassName(), "makeDirty", "(" + getNamer().getPersistableDescriptor() + "Ljava/lang/String;" + ")V");
    visitor.visitLabel(l1);
    visitor.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
    if (cmd.isDetachable()) {
        // if (dnIsDetached())
        visitor.visitVarInsn(Opcodes.ALOAD, 0);
        visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, getClassEnhancer().getASMClassName(), getNamer().getIsDetachedMethodName(), "()Z");
        Label l3 = new Label();
        visitor.visitJumpInsn(Opcodes.IFEQ, l3);
        visitor.visitVarInsn(Opcodes.ALOAD, 1);
        visitor.visitJumpInsn(Opcodes.IFNULL, l3);
        visitor.visitInsn(Opcodes.ACONST_NULL);
        visitor.visitVarInsn(Opcodes.ASTORE, 2);
        Label l5 = new Label();
        visitor.visitLabel(l5);
        visitor.visitVarInsn(Opcodes.ALOAD, 1);
        visitor.visitIntInsn(Opcodes.BIPUSH, 46);
        visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/String", "indexOf", "(I)I");
        Label l6 = new Label();
        visitor.visitJumpInsn(Opcodes.IFLT, l6);
        visitor.visitVarInsn(Opcodes.ALOAD, 1);
        visitor.visitVarInsn(Opcodes.ALOAD, 1);
        visitor.visitIntInsn(Opcodes.BIPUSH, 46);
        visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/String", "lastIndexOf", "(I)I");
        visitor.visitInsn(Opcodes.ICONST_1);
        visitor.visitInsn(Opcodes.IADD);
        visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/String", "substring", "(I)Ljava/lang/String;");
        visitor.visitVarInsn(Opcodes.ASTORE, 2);
        Label l8 = new Label();
        visitor.visitJumpInsn(Opcodes.GOTO, l8);
        visitor.visitLabel(l6);
        visitor.visitFrame(Opcodes.F_APPEND, 1, new Object[] { "java/lang/String" }, 0, null);
        visitor.visitVarInsn(Opcodes.ALOAD, 1);
        visitor.visitVarInsn(Opcodes.ASTORE, 2);
        visitor.visitLabel(l8);
        visitor.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        visitor.visitInsn(Opcodes.ICONST_0);
        visitor.visitVarInsn(Opcodes.ISTORE, 3);
        Label l9 = new Label();
        visitor.visitLabel(l9);
        Label l10 = new Label();
        visitor.visitJumpInsn(Opcodes.GOTO, l10);
        Label l11 = new Label();
        visitor.visitLabel(l11);
        visitor.visitFrame(Opcodes.F_APPEND, 1, new Object[] { Opcodes.INTEGER }, 0, null);
        visitor.visitFieldInsn(Opcodes.GETSTATIC, getClassEnhancer().getASMClassName(), getNamer().getFieldNamesFieldName(), "[Ljava/lang/String;");
        visitor.visitVarInsn(Opcodes.ILOAD, 3);
        visitor.visitInsn(Opcodes.AALOAD);
        visitor.visitVarInsn(Opcodes.ALOAD, 2);
        visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/String", "equals", "(Ljava/lang/Object;)Z");
        Label l12 = new Label();
        visitor.visitJumpInsn(Opcodes.IFEQ, l12);
        visitor.visitVarInsn(Opcodes.ALOAD, 0);
        visitor.visitFieldInsn(Opcodes.GETFIELD, getClassEnhancer().getASMClassName(), getNamer().getDetachedStateFieldName(), "[Ljava/lang/Object;");
        visitor.visitInsn(Opcodes.ICONST_2);
        visitor.visitInsn(Opcodes.AALOAD);
        visitor.visitTypeInsn(Opcodes.CHECKCAST, "java/util/BitSet");
        visitor.visitVarInsn(Opcodes.ILOAD, 3);
        visitor.visitFieldInsn(Opcodes.GETSTATIC, getClassEnhancer().getASMClassName(), getNamer().getInheritedFieldCountFieldName(), "I");
        visitor.visitInsn(Opcodes.IADD);
        visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/util/BitSet", "get", "(I)Z");
        Label l14 = new Label();
        visitor.visitJumpInsn(Opcodes.IFEQ, l14);
        visitor.visitVarInsn(Opcodes.ALOAD, 0);
        visitor.visitFieldInsn(Opcodes.GETFIELD, getClassEnhancer().getASMClassName(), getNamer().getDetachedStateFieldName(), "[Ljava/lang/Object;");
        visitor.visitInsn(Opcodes.ICONST_3);
        visitor.visitInsn(Opcodes.AALOAD);
        visitor.visitTypeInsn(Opcodes.CHECKCAST, "java/util/BitSet");
        visitor.visitVarInsn(Opcodes.ILOAD, 3);
        visitor.visitFieldInsn(Opcodes.GETSTATIC, getClassEnhancer().getASMClassName(), getNamer().getInheritedFieldCountFieldName(), "I");
        visitor.visitInsn(Opcodes.IADD);
        visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/util/BitSet", "set", "(I)V");
        visitor.visitInsn(Opcodes.RETURN);
        visitor.visitLabel(l14);
        visitor.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        if (enhancer.hasOption(ClassEnhancer.OPTION_GENERATE_DETACH_LISTENER)) {
            // TODO Check this bytecode
            visitor.visitMethodInsn(Opcodes.INVOKESTATIC, getNamer().getDetachListenerAsmClassName(), "getInstance", "()L" + getNamer().getDetachListenerAsmClassName() + ";");
            visitor.visitVarInsn(Opcodes.ALOAD, 0);
            visitor.visitLdcInsn("field/property");
            visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, getNamer().getDetachListenerAsmClassName(), "undetachedFieldAccess", "(Ljava/lang/Object;Ljava/lang/String;)V");
        } else {
            visitor.visitTypeInsn(Opcodes.NEW, getNamer().getDetachedFieldAccessExceptionAsmClassName());
            visitor.visitInsn(Opcodes.DUP);
            visitor.visitLdcInsn("You have just attempted to access a field/property that hasn't been detached. Please detach it first before performing this operation");
            visitor.visitMethodInsn(Opcodes.INVOKESPECIAL, getNamer().getDetachedFieldAccessExceptionAsmClassName(), "<init>", "(Ljava/lang/String;)V");
            visitor.visitInsn(Opcodes.ATHROW);
        }
        visitor.visitLabel(l12);
        visitor.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        visitor.visitIincInsn(3, 1);
        visitor.visitLabel(l10);
        visitor.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        visitor.visitVarInsn(Opcodes.ILOAD, 3);
        visitor.visitFieldInsn(Opcodes.GETSTATIC, getClassEnhancer().getASMClassName(), getNamer().getFieldNamesFieldName(), "[Ljava/lang/String;");
        visitor.visitInsn(Opcodes.ARRAYLENGTH);
        visitor.visitJumpInsn(Opcodes.IF_ICMPLT, l11);
        visitor.visitLabel(l3);
        visitor.visitFrame(Opcodes.F_CHOP, 2, null, 0, null);
        if (pcSuperclassName != null) {
            // Relay to the superclass to see if it has this field
            visitor.visitVarInsn(Opcodes.ALOAD, 0);
            visitor.visitVarInsn(Opcodes.ALOAD, 1);
            visitor.visitMethodInsn(Opcodes.INVOKESPECIAL, pcSuperclassName.replace('.', '/'), getNamer().getMakeDirtyMethodName(), "(Ljava/lang/String;)V");
        }
        visitor.visitInsn(Opcodes.RETURN);
        Label endLabel = new Label();
        visitor.visitLabel(endLabel);
        visitor.visitLocalVariable("this", getClassEnhancer().getClassDescriptor(), null, startLabel, endLabel, 0);
        visitor.visitLocalVariable(argNames[0], "Ljava/lang/String;", null, startLabel, endLabel, 1);
        visitor.visitLocalVariable("fldName", "Ljava/lang/String;", null, l5, l3, 2);
        visitor.visitLocalVariable("i", "I", null, l9, l3, 3);
        visitor.visitMaxs(3, 4);
    } else {
        visitor.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        visitor.visitInsn(Opcodes.RETURN);
        Label endLabel = new Label();
        visitor.visitLabel(endLabel);
        visitor.visitLocalVariable("this", getClassEnhancer().getClassDescriptor(), null, startLabel, endLabel, 0);
        visitor.visitLocalVariable(argNames[0], "Ljava/lang/String;", null, startLabel, endLabel, 1);
        visitor.visitMaxs(3, 2);
    }
    visitor.visitEnd();
}

Example 74 with AbstractClassMetaData

use of org.datanucleus.metadata.AbstractClassMetaData in project datanucleus-core by datanucleus.

the class ObjectProviderFactoryImpl method newForEmbedded.

/**
 * Constructs an ObjectProvider to manage a persistable instance that will
 * be EMBEDDED/SERIALISED into another persistable object. The instance will not be
 * assigned an identity in the process since it is a SCO.
 * @param ec ExecutionContext
 * @param pc The persistable to manage (see copyPc also)
 * @param copyPc Whether the SM should manage a copy of the passed PC or that one
 * @param ownerOP Owner ObjectProvider
 * @param ownerFieldNumber Field number in owner object where this is stored
 */
public <T> ObjectProvider<T> newForEmbedded(ExecutionContext ec, T pc, boolean copyPc, ObjectProvider ownerOP, int ownerFieldNumber) {
    AbstractClassMetaData cmd = ec.getMetaDataManager().getMetaDataForClass(pc.getClass(), ec.getClassLoaderResolver());
    ObjectProvider op = getObjectProvider(ec, cmd);
    op.initialiseForEmbedded(pc, copyPc);
    if (ownerOP != null) {
        ec.registerEmbeddedRelation(ownerOP, ownerFieldNumber, op);
    }
    return op;
}

Example 75 with AbstractClassMetaData

use of org.datanucleus.metadata.AbstractClassMetaData in project datanucleus-core by datanucleus.

the class ObjectProviderFactoryImpl method newForPersistentClean.

/**
 * Constructs an ObjectProvider to manage the specified persistent instance having the given object ID.
 * @param ec ExecutionContext
 * @param id the identity of the object.
 * @param pc The object that is persistent that we are going to manage
 */
public <T> ObjectProvider<T> newForPersistentClean(ExecutionContext ec, Object id, T pc) {
    AbstractClassMetaData cmd = ec.getMetaDataManager().getMetaDataForClass(pc.getClass(), ec.getClassLoaderResolver());
    ObjectProvider op = getObjectProvider(ec, cmd);
    op.initialiseForPersistentClean(id, pc);
    return op;
}