Example usage for org.objectweb.asm Opcodes ACC_PRIVATE

Introduction

In this page you can find the example usage for org.objectweb.asm Opcodes ACC_PRIVATE.

Prototype

int ACC_PRIVATE

To view the source code for org.objectweb.asm Opcodes ACC_PRIVATE.

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Usage

From source file:org.apache.commons.weaver.privilizer.BlueprintingVisitor.java

License:Apache License

private String importMethod(final Pair<Type, Method> key) {
    if (importedMethods.containsKey(key)) {
        return importedMethods.get(key);
    }//from w  w  w  .java2s. c om
    final String result = new StringBuilder(key.getLeft().getInternalName().replace('/', '_')).append("$$")
            .append(key.getRight().getName()).toString();
    importedMethods.put(key, result);
    privilizer().env.debug("importing %s#%s as %s", key.getLeft().getClassName(), key.getRight(), result);
    final int access = Opcodes.ACC_PRIVATE + Opcodes.ACC_STATIC + Opcodes.ACC_SYNTHETIC;

    final MethodNode source = typeInfo(key.getLeft()).methods.get(key.getRight());

    final String[] exceptions = source.exceptions.toArray(ArrayUtils.EMPTY_STRING_ARRAY);

    // non-public fields accessed
    final Set<FieldAccess> fieldAccesses = new LinkedHashSet<>();

    source.accept(new MethodVisitor(Privilizer.ASM_VERSION) {
        @Override
        public void visitFieldInsn(final int opcode, final String owner, final String name, final String desc) {
            final FieldAccess fieldAccess = fieldAccess(Type.getObjectType(owner), name);

            super.visitFieldInsn(opcode, owner, name, desc);
            if (!Modifier.isPublic(fieldAccess.access)) {
                fieldAccesses.add(fieldAccess);
            }
        }
    });

    final MethodNode withAccessibleAdvice = new MethodNode(access, result, source.desc, source.signature,
            exceptions);

    // spider own methods:
    MethodVisitor mv = new NestedMethodInvocationHandler(withAccessibleAdvice, key); //NOPMD

    if (!fieldAccesses.isEmpty()) {
        mv = new AccessibleAdvisor(mv, access, result, source.desc, new ArrayList<>(fieldAccesses));
    }
    source.accept(mv);

    // private can only be called by other privileged methods, so no need to mark as privileged
    if (!Modifier.isPrivate(source.access)) {
        withAccessibleAdvice.visitAnnotation(Type.getType(Privileged.class).getDescriptor(), false).visitEnd();
    }
    withAccessibleAdvice.accept(this.cv);

    return result;
}

---

From source file:org.apache.commons.weaver.privilizer.PrivilizingVisitor.java

License:Apache License

@Override
public void visitEnd() {
    annotate();/*from   w  w w  .  j  a  v  a 2 s  .co  m*/
    if (privilizer().policy == Policy.ON_INIT) {
        final String fieldName = privilizer().generateName("hasSecurityManager");

        visitField(Opcodes.ACC_PRIVATE + Opcodes.ACC_STATIC + Opcodes.ACC_FINAL, fieldName,
                Type.BOOLEAN_TYPE.getDescriptor(), null, null).visitEnd();

        final GeneratorAdapter mgen = new GeneratorAdapter(Opcodes.ACC_STATIC, new Method("<clinit>", "()V"),
                null, Privilizer.EMPTY_TYPE_ARRAY, this);
        checkSecurityManager(mgen);
        mgen.putStatic(target, fieldName, Type.BOOLEAN_TYPE);
        mgen.returnValue();
        mgen.endMethod();
    }
    super.visitEnd();
}

---

From source file:org.apache.cxf.jaxb.JAXBUtils.java

License:Apache License

private static Class<?> createNamespaceWrapperInternal(ASMHelper helper, ClassWriter cw) {
    String className = "org.apache.cxf.jaxb.NamespaceMapperInternal";
    FieldVisitor fv;//from w w w .  j  a  v  a  2  s  .c  o  m
    MethodVisitor mv;
    cw.visit(Opcodes.V1_5, Opcodes.ACC_PUBLIC + Opcodes.ACC_FINAL + Opcodes.ACC_SUPER,
            "org/apache/cxf/jaxb/NamespaceMapperInternal", null,
            "com/sun/xml/internal/bind/marshaller/NamespacePrefixMapper", null);

    cw.visitSource("NamespaceMapper.java", null);

    fv = cw.visitField(Opcodes.ACC_PRIVATE + Opcodes.ACC_FINAL, "nspref", "Ljava/util/Map;",
            "Ljava/util/Map<Ljava/lang/String;Ljava/lang/String;>;", null);
    fv.visitEnd();

    mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "(Ljava/util/Map;)V",
            "(Ljava/util/Map<Ljava/lang/String;Ljava/lang/String;>;)V", null);
    mv.visitCode();
    Label l0 = new Label();
    mv.visitLabel(l0);
    mv.visitLineNumber(30, l0);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "com/sun/xml/internal/bind/marshaller/NamespacePrefixMapper",
            "<init>", "()V");
    Label l1 = new Label();
    mv.visitLabel(l1);
    mv.visitLineNumber(31, l1);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitVarInsn(Opcodes.ALOAD, 1);
    mv.visitFieldInsn(Opcodes.PUTFIELD, "org/apache/cxf/jaxb/NamespaceMapperInternal", "nspref",
            "Ljava/util/Map;");
    Label l2 = new Label();
    mv.visitLabel(l2);
    mv.visitLineNumber(32, l2);
    mv.visitInsn(Opcodes.RETURN);
    Label l3 = new Label();
    mv.visitLabel(l3);
    mv.visitLocalVariable("this", "Lorg/apache/cxf/jaxb/NamespaceMapperInternal;", null, l0, l3, 0);
    mv.visitLocalVariable("nspref", "Ljava/util/Map;", "Ljava/util/Map<Ljava/lang/String;Ljava/lang/String;>;",
            l0, l3, 1);
    mv.visitMaxs(2, 2);
    mv.visitEnd();

    mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "getPreferredPrefix",
            "(Ljava/lang/String;Ljava/lang/String;Z)Ljava/lang/String;", null, null);
    mv.visitCode();
    l0 = new Label();
    mv.visitLabel(l0);
    mv.visitLineNumber(38, l0);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, "org/apache/cxf/jaxb/NamespaceMapperInternal", "nspref",
            "Ljava/util/Map;");
    mv.visitVarInsn(Opcodes.ALOAD, 1);
    mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/Map", "get",
            "(Ljava/lang/Object;)Ljava/lang/Object;");
    mv.visitTypeInsn(Opcodes.CHECKCAST, "java/lang/String");
    mv.visitVarInsn(Opcodes.ASTORE, 4);
    l1 = new Label();
    mv.visitLabel(l1);
    mv.visitLineNumber(39, l1);
    mv.visitVarInsn(Opcodes.ALOAD, 4);
    l2 = new Label();
    mv.visitJumpInsn(Opcodes.IFNULL, l2);
    l3 = new Label();
    mv.visitLabel(l3);
    mv.visitLineNumber(40, l3);
    mv.visitVarInsn(Opcodes.ALOAD, 4);
    mv.visitInsn(Opcodes.ARETURN);
    mv.visitLabel(l2);
    mv.visitLineNumber(42, l2);
    mv.visitVarInsn(Opcodes.ALOAD, 2);
    mv.visitInsn(Opcodes.ARETURN);
    Label l4 = new Label();
    mv.visitLabel(l4);
    mv.visitLocalVariable("this", "Lorg/apache/cxf/jaxb/NamespaceMapperInternal;", null, l0, l4, 0);
    mv.visitLocalVariable("namespaceUri", "Ljava/lang/String;", null, l0, l4, 1);
    mv.visitLocalVariable("suggestion", "Ljava/lang/String;", null, l0, l4, 2);
    mv.visitLocalVariable("requirePrefix", "Z", null, l0, l4, 3);
    mv.visitLocalVariable("prefix", "Ljava/lang/String;", null, l1, l4, 4);
    mv.visitMaxs(2, 5);
    mv.visitEnd();
    cw.visitEnd();

    byte bts[] = cw.toByteArray();
    return helper.loadClass(className, JAXBUtils.class, bts);
}

---

From source file:org.apache.cxf.jaxws.WrapperClassGenerator.java

License:Apache License

private void generateMessagePart(ClassWriter cw, MessagePartInfo mpi, Method method, String className) {
    if (Boolean.TRUE.equals(mpi.getProperty(ReflectionServiceFactoryBean.HEADER))) {
        return;//from  w ww .  java  2  s. c o m
    }
    String classFileName = periodToSlashes(className);
    String name = mpi.getName().getLocalPart();
    Class clz = mpi.getTypeClass();
    Object obj = mpi.getProperty(ReflectionServiceFactoryBean.RAW_CLASS);
    if (obj != null) {
        clz = (Class) obj;
    }
    Type genericType = (Type) mpi.getProperty(ReflectionServiceFactoryBean.GENERIC_TYPE);
    if (genericType instanceof ParameterizedType) {
        ParameterizedType tp = (ParameterizedType) genericType;
        if (tp.getRawType() instanceof Class && Holder.class.isAssignableFrom((Class) tp.getRawType())) {
            genericType = tp.getActualTypeArguments()[0];
        }
    }
    String classCode = getClassCode(clz);
    String fieldDescriptor = null;

    if (genericType instanceof ParameterizedType) {
        if (Collection.class.isAssignableFrom(clz) || clz.isArray()) {
            ParameterizedType ptype = (ParameterizedType) genericType;

            Type[] types = ptype.getActualTypeArguments();
            // TODO: more complex Parameterized type
            if (types.length > 0) {
                if (types[0] instanceof Class) {
                    fieldDescriptor = getClassCode(genericType);
                } else if (types[0] instanceof GenericArrayType) {
                    fieldDescriptor = getClassCode(genericType);
                } else if (types[0] instanceof ParameterizedType) {
                    classCode = getClassCode(((ParameterizedType) types[0]).getRawType());
                    fieldDescriptor = getClassCode(genericType);
                }
            }
        } else {
            classCode = getClassCode(((ParameterizedType) genericType).getRawType());
            fieldDescriptor = getClassCode(genericType);
        }
    }
    String fieldName = JavaUtils.isJavaKeyword(name) ? JavaUtils.makeNonJavaKeyword(name) : name;

    FieldVisitor fv = cw.visitField(Opcodes.ACC_PRIVATE, fieldName, classCode, fieldDescriptor, null);

    AnnotationVisitor av0 = fv.visitAnnotation("Ljavax/xml/bind/annotation/XmlElement;", true);
    av0.visit("name", name);
    if (factory.isWrapperPartQualified(mpi)) {
        av0.visit("namespace", mpi.getConcreteName().getNamespaceURI());
    }
    if (factory.isWrapperPartNillable(mpi)) {
        av0.visit("nillable", Boolean.TRUE);
    }
    if (factory.getWrapperPartMinOccurs(mpi) == 1) {
        av0.visit("required", Boolean.TRUE);
    }
    av0.visitEnd();

    List<Annotation> jaxbAnnos = getJaxbAnnos(mpi);
    addJAXBAnnotations(fv, jaxbAnnos);
    fv.visitEnd();

    String methodName = JAXBUtils.nameToIdentifier(name, JAXBUtils.IdentifierType.GETTER);
    MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, methodName, "()" + classCode,
            fieldDescriptor == null ? null : "()" + fieldDescriptor, null);
    mv.visitCode();

    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, classFileName, fieldName, classCode);
    mv.visitInsn(org.objectweb.asm.Type.getType(classCode).getOpcode(Opcodes.IRETURN));
    mv.visitMaxs(0, 0);
    mv.visitEnd();

    methodName = JAXBUtils.nameToIdentifier(name, JAXBUtils.IdentifierType.SETTER);
    mv = cw.visitMethod(Opcodes.ACC_PUBLIC, methodName, "(" + classCode + ")V",
            fieldDescriptor == null ? null : "(" + fieldDescriptor + ")V", null);
    mv.visitCode();
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    org.objectweb.asm.Type setType = org.objectweb.asm.Type.getType(classCode);
    mv.visitVarInsn(setType.getOpcode(Opcodes.ILOAD), 1);
    mv.visitFieldInsn(Opcodes.PUTFIELD, className, fieldName, classCode);
    mv.visitInsn(Opcodes.RETURN);
    mv.visitMaxs(0, 0);
    mv.visitEnd();

}

---

From source file:org.apache.deltaspike.partialbean.impl.proxy.AsmProxyClassGenerator.java

License:Apache License

private static void defineInvocationHandlerField(ClassWriter cw, Type invocationHandlerType) {
    // generates/*from w w  w.  j a v  a 2s  . c  o m*/
    // private MyPartialBeanInvocationHandler __handler;
    cw.visitField(Opcodes.ACC_PRIVATE, FIELDNAME_HANDLER, invocationHandlerType.getDescriptor(), null, null)
            .visitEnd();
}

---

From source file:org.apache.deltaspike.proxy.impl.AsmDeltaSpikeProxyClassGenerator.java

License:Apache License

private static void defineDeltaSpikeProxyFields(ClassWriter cw) {
    // generates//from  w w w. j a  va  2 s . c  o m
    // private DeltaSpikeProxyInvocationHandler invocationHandler;
    cw.visitField(Opcodes.ACC_PRIVATE, FIELDNAME_INVOCATION_HANDLER,
            TYPE_DELTA_SPIKE_PROXY_INVOCATION_HANDLER.getDescriptor(), null, null).visitEnd();

    // generates
    // private MyInvocationHandler delegateInvocationHandler;
    cw.visitField(Opcodes.ACC_PRIVATE, FIELDNAME_DELEGATE_INVOCATION_HANDLER,
            TYPE_INVOCATION_HANDLER.getDescriptor(), null, null).visitEnd();

    // generates
    // private Method[] delegateMethods;
    cw.visitField(Opcodes.ACC_PRIVATE, FIELDNAME_DELEGATE_METHODS, TYPE_METHOD_ARRAY.getDescriptor(), null,
            null).visitEnd();
}

---

From source file:org.apache.deltaspike.proxy.impl.AsmProxyClassGenerator.java

License:Apache License

private static void defineInvocationHandlerField(ClassWriter cw, Type delegateInvocationHandlerType) {
    // generates//from  w  w  w.  ja  v  a 2s  .  c  o  m
    // private MyInvocationHandler delegateInvocationHandler;
    cw.visitField(Opcodes.ACC_PRIVATE, FIELDNAME_DELEGATE_INVOCATION_HANDLER,
            delegateInvocationHandlerType.getDescriptor(), null, null).visitEnd();
}

---

From source file:org.apache.deltaspike.proxy.util.AsmProxyClassGenerator.java

License:Apache License

private static void defineInvocationHandlerField(ClassWriter cw, Type invocationHandlerType) {
    // generates/*www . ja  v  a2 s . c  o  m*/
    // private MyInvocationHandler delegateInvocationHandler;
    cw.visitField(Opcodes.ACC_PRIVATE, FIELDNAME_DELEGATE_INVOCATION_HANDLER,
            invocationHandlerType.getDescriptor(), null, null).visitEnd();
}

---

From source file:org.apache.drill.exec.compile.InnerClassAccessStripper.java

License:Apache License

@Override
public void visit(final int version, final int access, final String name, final String signature,
        final String superName, final String[] interfaces) {
    /*/*from w  w w  .j  av a2 s.  c  o  m*/
     * Record the original access bits so we can restore them before the next
     * link in the visitor chain.
     */
    originalClassAccess = access;
    accessCaptured = true;

    // If we're checking an inner class, suppress access bits that ASM chokes on.
    int checkClassAccess = access;
    if (name.indexOf('$') >= 0) {
        checkClassAccess &= ~(Opcodes.ACC_PROTECTED | Opcodes.ACC_PRIVATE | Opcodes.ACC_STATIC);
    }
    super.visit(version, checkClassAccess, name, signature, superName, interfaces);
}

---

From source file:org.apache.felix.ipojo.composite.service.provides.POJOWriter.java

License:Apache License

/**
 * Inject field in the current class.//from   w  w w .  ja v  a 2s  . c  o m
 * @param cw : class writer.
 * @param fields : list of field to inject.
 */
private static void injectFields(ClassWriter cw, List fields) {
    // Inject fields
    for (int i = 0; i < fields.size(); i++) {
        FieldMetadata field = (FieldMetadata) fields.get(i);
        if (field.isUseful()) {
            SpecificationMetadata spec = field.getSpecification();
            String fieldName = field.getName();
            String desc = "";
            if (field.isAggregate()) {
                desc = "[L" + spec.getName().replace('.', '/') + ";";
            } else {
                desc = "L" + spec.getName().replace('.', '/') + ";";
            }

            cw.visitField(Opcodes.ACC_PRIVATE, fieldName, desc, null, null);
        }
    }
}

---

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