Examples with ClassWriter org.simpleflatmapper.ow2asm.ClassWriter used on opensource projects

Example 1 with ClassWriter

use of org.simpleflatmapper.ow2asm.ClassWriter in project SimpleFlatMapper by arnaudroger.

the class CsvMapperCellHandlerBuilder method createTargetSetterFactory.

public static byte[] createTargetSetterFactory(String factoryName, String className, Type target) throws Exception {
    ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
    MethodVisitor mv;
    String factoryType = AsmUtils.toAsmType(factoryName);
    String classType = AsmUtils.toAsmType(className);
    String targetType = AsmUtils.toAsmType(target);
    cw.visit(Opcodes.V1_6, Opcodes.ACC_FINAL + Opcodes.ACC_PUBLIC + Opcodes.ACC_SUPER, factoryType, "L" + CELL_HANDLER_FACTORY_TYPE + "<L" + targetType + ";>;", CELL_HANDLER_FACTORY_TYPE, null);
    {
        mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "(" + AsmUtils.toTargetTypeDeclaration(Instantiator.class) + AsmUtils.toTargetTypeDeclaration(CsvColumnKey[].class) + AsmUtils.toTargetTypeDeclaration(ParsingContextFactory.class) + AsmUtils.toTargetTypeDeclaration(FieldMapperErrorHandler.class) + ")V", "(" + "L" + AsmUtils.toAsmType(Instantiator.class) + "<L" + AsmUtils.toAsmType(CsvMapperCellHandler.class) + "<L" + targetType + ";>;L" + targetType + ";>;" + AsmUtils.toTargetTypeDeclaration(CsvColumnKey[].class) + AsmUtils.toTargetTypeDeclaration(ParsingContextFactory.class) + "L" + AsmUtils.toAsmType(FieldMapperErrorHandler.class) + "<L" + AsmUtils.toAsmType(CsvColumnKey.class) + ";>;" + ")V", null);
        mv.visitCode();
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitVarInsn(Opcodes.ALOAD, 1);
        mv.visitVarInsn(Opcodes.ALOAD, 2);
        mv.visitVarInsn(Opcodes.ALOAD, 3);
        mv.visitVarInsn(Opcodes.ALOAD, 4);
        mv.visitMethodInsn(Opcodes.INVOKESPECIAL, CELL_HANDLER_FACTORY_TYPE, "<init>", "(" + AsmUtils.toTargetTypeDeclaration(Instantiator.class) + AsmUtils.toTargetTypeDeclaration(CsvColumnKey[].class) + AsmUtils.toTargetTypeDeclaration(ParsingContextFactory.class) + AsmUtils.toTargetTypeDeclaration(FieldMapperErrorHandler.class) + ")V", false);
        mv.visitInsn(Opcodes.RETURN);
        mv.visitMaxs(5, 5);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "newInstance", "(" + AsmUtils.toTargetTypeDeclaration(DelayedCellSetter[].class) + AsmUtils.toTargetTypeDeclaration(CellSetter[].class) + ")" + AsmUtils.toTargetTypeDeclaration(CsvMapperCellHandler.class), "(" + "[L" + DELAYED_CELL_SETTER_TYPE + "<L" + targetType + ";*>;" + "[L" + CELL_SETTER_TYPE + "<L" + targetType + ";>;" + ")" + "L" + AsmUtils.toAsmType(CsvMapperCellHandler.class) + "<L" + targetType + ";>;", null);
        mv.visitCode();
        mv.visitTypeInsn(Opcodes.NEW, classType);
        mv.visitInsn(Opcodes.DUP);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitFieldInsn(Opcodes.GETFIELD, factoryType, "instantiator", AsmUtils.toTargetTypeDeclaration(Instantiator.class));
        mv.visitVarInsn(Opcodes.ALOAD, 1);
        mv.visitVarInsn(Opcodes.ALOAD, 2);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitFieldInsn(Opcodes.GETFIELD, factoryType, "keys", AsmUtils.toTargetTypeDeclaration(CsvColumnKey[].class));
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitFieldInsn(Opcodes.GETFIELD, factoryType, "parsingContextFactory", AsmUtils.toTargetTypeDeclaration(ParsingContextFactory.class));
        mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, AsmUtils.toAsmType(ParsingContextFactory.class), "newContext", "()" + AsmUtils.toTargetTypeDeclaration(ParsingContext.class), false);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitFieldInsn(Opcodes.GETFIELD, factoryType, "fieldErrorHandler", AsmUtils.toTargetTypeDeclaration(FieldMapperErrorHandler.class));
        mv.visitMethodInsn(Opcodes.INVOKESPECIAL, classType, "<init>", "(" + AsmUtils.toTargetTypeDeclaration(Instantiator.class) + AsmUtils.toTargetTypeDeclaration(DelayedCellSetter[].class) + AsmUtils.toTargetTypeDeclaration(CellSetter[].class) + AsmUtils.toTargetTypeDeclaration(CsvColumnKey[].class) + AsmUtils.toTargetTypeDeclaration(ParsingContext.class) + AsmUtils.toTargetTypeDeclaration(FieldMapperErrorHandler.class) + ")V", false);
        mv.visitInsn(Opcodes.ARETURN);
        mv.visitMaxs(8, 3);
        mv.visitEnd();
    }
    cw.visitEnd();
    return cw.toByteArray();
}

Example 2 with ClassWriter

use of org.simpleflatmapper.ow2asm.ClassWriter in project SimpleFlatMapper by arnaudroger.

the class GetterBuilder method createPrimitiveGetter.

public static byte[] createPrimitiveGetter(String className, Method method) throws Exception {
    ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
    MethodVisitor mv;
    Class<?> target = method.getDeclaringClass();
    Class<?> primitive = method.getReturnType();
    Class<?> property = AsmUtils.wrappers.get(primitive);
    String targetType = toType(target);
    String primitiveType = AsmUtils.primitivesType.get(primitive);
    String propertyType = toType(property);
    String classType = toType(className);
    String methodSuffix = property.getSimpleName();
    if ("Integer".equals(methodSuffix)) {
        methodSuffix = "Int";
    }
    String getMethod = "get" + methodSuffix;
    cw.visit(V1_6, ACC_PUBLIC + ACC_FINAL + ACC_SUPER, classType, "Ljava/lang/Object;" + "L" + GETTER_TYPE + "<L" + targetType + ";" + AsmUtils.toTargetTypeDeclaration(propertyType) + ">;" + "L" + ORG_SFM_REFLECT_PRIMITIVE + methodSuffix + "Getter<L" + targetType + ";>;", "java/lang/Object", new String[] { GETTER_TYPE, ORG_SFM_REFLECT_PRIMITIVE + "/" + methodSuffix + "Getter" });
    {
        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
        mv.visitInsn(RETURN);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, getMethod, "(" + AsmUtils.toTargetTypeDeclaration(targetType) + ")" + primitiveType, null, new String[] { "java/lang/Exception" });
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 1);
        AsmUtils.invoke(mv, target, method.getName(), "()" + primitiveType);
        mv.visitInsn(AsmUtils.returnOps.get(primitive));
        mv.visitMaxs(1, 2);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "get", "(" + AsmUtils.toTargetTypeDeclaration(targetType) + ")" + AsmUtils.toTargetTypeDeclaration(propertyType), null, new String[] { "java/lang/Exception" });
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 1);
        AsmUtils.invoke(mv, target, method.getName(), "()" + primitiveType);
        mv.visitMethodInsn(INVOKESTATIC, propertyType, "valueOf", "(" + primitiveType + ")L" + propertyType + ";", false);
        mv.visitInsn(ARETURN);
        mv.visitMaxs(1, 2);
        mv.visitEnd();
    }
    appendPrimitiveBridges(cw, primitive, targetType, primitiveType, propertyType, classType, getMethod);
    appendToString(cw);
    cw.visitEnd();
    return AsmUtils.writeClassToFile(className, cw.toByteArray());
}

Example 3 with ClassWriter

use of org.simpleflatmapper.ow2asm.ClassWriter in project SimpleFlatMapper by arnaudroger.

the class GetterBuilder method createPrimitiveGetter.

public static byte[] createPrimitiveGetter(String className, Field field) throws Exception {
    ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
    MethodVisitor mv;
    Class<?> target = field.getDeclaringClass();
    Class<?> primitive = field.getType();
    Class<?> property = AsmUtils.wrappers.get(primitive);
    String targetType = toType(target);
    String primitiveType = AsmUtils.primitivesType.get(primitive);
    String propertyType = toType(property);
    String classType = toType(className);
    String methodSuffix = property.getSimpleName();
    if ("Integer".equals(methodSuffix)) {
        methodSuffix = "Int";
    }
    String getMethod = "get" + methodSuffix;
    cw.visit(V1_6, ACC_PUBLIC + ACC_FINAL + ACC_SUPER, classType, "Ljava/lang/Object;" + "L" + GETTER_TYPE + "<L" + targetType + ";" + AsmUtils.toTargetTypeDeclaration(propertyType) + ">;" + "L" + ORG_SFM_REFLECT_PRIMITIVE + methodSuffix + "Getter<L" + targetType + ";>;", "java/lang/Object", new String[] { GETTER_TYPE, ORG_SFM_REFLECT_PRIMITIVE + "/" + methodSuffix + "Getter" });
    {
        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
        mv.visitInsn(RETURN);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, getMethod, "(" + AsmUtils.toTargetTypeDeclaration(targetType) + ")" + primitiveType, null, new String[] { "java/lang/Exception" });
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 1);
        mv.visitFieldInsn(GETFIELD, targetType, field.getName(), primitiveType);
        mv.visitInsn(AsmUtils.returnOps.get(primitive));
        mv.visitMaxs(1, 2);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "get", "(" + AsmUtils.toTargetTypeDeclaration(targetType) + ")" + AsmUtils.toTargetTypeDeclaration(propertyType), null, new String[] { "java/lang/Exception" });
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 1);
        mv.visitFieldInsn(GETFIELD, targetType, field.getName(), primitiveType);
        mv.visitMethodInsn(INVOKESTATIC, propertyType, "valueOf", "(" + primitiveType + ")L" + propertyType + ";", false);
        mv.visitInsn(ARETURN);
        mv.visitMaxs(1, 2);
        mv.visitEnd();
    }
    appendPrimitiveBridges(cw, primitive, targetType, primitiveType, propertyType, classType, getMethod);
    appendToString(cw);
    cw.visitEnd();
    return AsmUtils.writeClassToFile(className, cw.toByteArray());
}

Example 4 with ClassWriter

use of org.simpleflatmapper.ow2asm.ClassWriter in project SimpleFlatMapper by arnaudroger.

the class InstantiatorBuilder method createInstantiator.

public static <S> byte[] createInstantiator(final String className, final Class<?> sourceClass, final BuilderInstantiatorDefinition instantiatorDefinition, final Map<Parameter, Getter<? super S, ?>> injections, boolean ignoreNullValues) throws Exception {
    ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
    Class<?> targetClass = TypeHelper.toClass(BiInstantiatorBuilder.getTargetType(instantiatorDefinition));
    String targetType = AsmUtils.toAsmType(targetClass);
    String sourceType = AsmUtils.toWrapperType(sourceClass);
    String classType = AsmUtils.toAsmType(className);
    String instantiatorType = AsmUtils.toAsmType(Instantiator.class);
    cw.visit(V1_6, ACC_PUBLIC + ACC_FINAL + ACC_SUPER, classType, "Ljava/lang/Object;L" + instantiatorType + "<L" + targetType + ";>;", "java/lang/Object", new String[] { instantiatorType });
    {
        FieldVisitor fv = cw.visitField(ACC_FINAL, "builderInstantiator", "L" + AsmUtils.toAsmType(Instantiator.class) + ";", "L" + AsmUtils.toAsmType(Instantiator.class) + "<Ljava/lang/Void;L" + AsmUtils.toAsmType(BiInstantiatorBuilder.getTargetType(instantiatorDefinition.getBuilderInstantiator())) + ";>;", null);
        fv.visitEnd();
    }
    appendGetters(injections, cw);
    appendInitBuilder(injections, cw, sourceType, classType, instantiatorDefinition);
    appendNewInstanceBuilderOnBuilder(sourceClass, instantiatorDefinition, injections, cw, targetType, sourceType, classType, instantiatorDefinition.getSetters(), ignoreNullValues);
    appendBridgeMethod(cw, targetType, sourceType, classType);
    appendToString(injections, cw, instantiatorDefinition.getParameters());
    cw.visitEnd();
    return AsmUtils.writeClassToFile(className, cw.toByteArray());
}

Example 5 with ClassWriter

use of org.simpleflatmapper.ow2asm.ClassWriter in project SimpleFlatMapper by arnaudroger.

the class SetterBuilder method createPrimitiveSetter.

public static byte[] createPrimitiveSetter(String className, Field field) throws Exception {
    ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
    MethodVisitor mv;
    Class<?> target = field.getDeclaringClass();
    Class<?> primitive = field.getType();
    Class<?> property = AsmUtils.wrappers.get(primitive);
    String targetType = toType(target);
    String primitiveType = AsmUtils.primitivesType.get(primitive);
    String propertyType = toType(property);
    String classType = toType(className);
    String methodSuffix = property.getSimpleName();
    if ("Integer".equals(methodSuffix)) {
        methodSuffix = "Int";
    }
    String valueMethodPrefix = methodSuffix.toLowerCase();
    if ("character".equals(valueMethodPrefix)) {
        valueMethodPrefix = "char";
    }
    String setMethod = "set" + methodSuffix;
    String valueMethod = valueMethodPrefix + "Value";
    int primitiveLoadOp = AsmUtils.loadOps.get(primitive);
    cw.visit(V1_6, ACC_PUBLIC + ACC_FINAL + ACC_SUPER, classType, "Ljava/lang/Object;" + "L" + SETTER_TYPE + "<L" + targetType + ";" + AsmUtils.toTargetTypeDeclaration(propertyType) + ">;" + "L" + ORG_SFM_REFLECT_PRIMITIVE + methodSuffix + "Setter<L" + targetType + ";>;", "java/lang/Object", new String[] { SETTER_TYPE, ORG_SFM_REFLECT_PRIMITIVE + "/" + methodSuffix + "Setter" });
    {
        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
        mv.visitInsn(RETURN);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, setMethod, "(" + AsmUtils.toTargetTypeDeclaration(targetType) + primitiveType + ")V", null, new String[] { "java/lang/Exception" });
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 1);
        mv.visitVarInsn(primitiveLoadOp, 2);
        mv.visitFieldInsn(PUTFIELD, targetType, field.getName(), primitiveType);
        mv.visitInsn(RETURN);
        mv.visitMaxs(2, 3);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "set", "(" + AsmUtils.toTargetTypeDeclaration(targetType) + AsmUtils.toTargetTypeDeclaration(propertyType) + ")V", null, new String[] { "java/lang/Exception" });
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 1);
        mv.visitVarInsn(ALOAD, 2);
        AsmUtils.invoke(mv, property, valueMethod, "()" + primitiveType);
        mv.visitFieldInsn(PUTFIELD, targetType, field.getName(), primitiveType);
        mv.visitInsn(RETURN);
        mv.visitMaxs(2, 3);
        mv.visitEnd();
    }
    appendPrimitiveSynthetic(cw, targetType, primitiveType, propertyType, classType, setMethod, primitiveLoadOp);
    appendToString(cw);
    cw.visitEnd();
    return AsmUtils.writeClassToFile(className, cw.toByteArray());
}