List of usage examples for org.objectweb.asm MethodVisitor visitInsn
public void visitInsn(final int opcode)
From source file:com.nginious.http.serialize.JsonSerializerCreator.java
License:Apache License
/** * Creates a JSON serializer for the specified bean class unless a serializer has already been * created. Created serializers are cached and returned on subsequent calls to this method. * // ww w. j a v a 2 s. co m * @param factory serializer factory * @param <T> class type for bean * @param beanClazz bean class for which a serializer should be created * @return the created serializer * @throws SerializerFactoryException if unable to create serializer or class is not a bean */ @SuppressWarnings("unchecked") <T> JsonSerializer<T> create(SerializerFactoryImpl factory, Class<T> beanClazz) throws SerializerFactoryException { JsonSerializer<T> serializer = (JsonSerializer<T>) serializers.get(beanClazz); if (serializer != null) { return serializer; } try { synchronized (this) { serializer = (JsonSerializer<T>) serializers.get(beanClazz); if (serializer != null) { return serializer; } checkSerializability(beanClazz, "json"); String intBeanClazzName = Serialization.createInternalClassName(beanClazz); Method[] methods = beanClazz.getMethods(); String intSerializerClazzName = new StringBuffer(intBeanClazzName).append("JsonSerializer") .toString(); // Create class ClassWriter writer = new ClassWriter(0); String signature = Serialization.createClassSignature("com/nginious/http/serialize/JsonSerializer", intBeanClazzName); writer.visit(Opcodes.V1_6, Opcodes.ACC_PUBLIC, intSerializerClazzName, signature, "com/nginious/http/serialize/JsonSerializer", null); // Create constructor Serialization.createConstructor(writer, "com/nginious/http/serialize/JsonSerializer"); // Create serialize method MethodVisitor visitor = createSerializeMethod(writer, intBeanClazzName); for (Method method : methods) { Serializable info = method.getAnnotation(Serializable.class); boolean canSerialize = info == null || (info != null && info.serialize() && info.types().indexOf("json") > -1); if (canSerialize && method.getName().startsWith("get") && !method.getName().equals("getClass") && method.getReturnType() != null && method.getParameterTypes().length == 0) { Class<?> returnType = method.getReturnType(); String propertyName = getPropertyName(method); if (returnType.isPrimitive()) { if (returnType.equals(boolean.class)) { createPropertySerializationCode(visitor, intSerializerClazzName, "serializeBoolean", "Z", "Z", intBeanClazzName, method.getName(), propertyName); } else if (returnType.equals(double.class)) { createPropertySerializationCode(visitor, intSerializerClazzName, "serializeDouble", "D", "D", intBeanClazzName, method.getName(), propertyName); } else if (returnType.equals(float.class)) { createPropertySerializationCode(visitor, intSerializerClazzName, "serializeFloat", "F", "F", intBeanClazzName, method.getName(), propertyName); } else if (returnType.equals(int.class)) { createPropertySerializationCode(visitor, intSerializerClazzName, "serializeInt", "I", "I", intBeanClazzName, method.getName(), propertyName); } else if (returnType.equals(long.class)) { createPropertySerializationCode(visitor, intSerializerClazzName, "serializeLong", "J", "J", intBeanClazzName, method.getName(), propertyName); } else if (returnType.equals(short.class)) { createPropertySerializationCode(visitor, intSerializerClazzName, "serializeShort", "S", "S", intBeanClazzName, method.getName(), propertyName); } } else if (Collection.class.isAssignableFrom(returnType)) { Class<?> collectionType = canSerializeGenericCollectionType(method, "json"); if (collectionType != null) { createBeanCollectionSerializationCode(visitor, intBeanClazzName, method.getName(), propertyName, returnType, collectionType); } else { createObjectCollectionSerializationCode(visitor, returnType, intBeanClazzName, method.getName(), propertyName); } } else if (returnType.equals(Calendar.class)) { createPropertySerializationCode(visitor, intSerializerClazzName, "serializeCalendar", "Ljava/util/Calendar;", "Ljava/util/Calendar;", intBeanClazzName, method.getName(), propertyName); } else if (returnType.equals(Date.class)) { createPropertySerializationCode(visitor, intSerializerClazzName, "serializeDate", "Ljava/util/Date;", "Ljava/util/Date;", intBeanClazzName, method.getName(), propertyName); } else if (returnType.equals(String.class)) { createPropertySerializationCode(visitor, intSerializerClazzName, "serializeString", "Ljava/lang/String;", "Ljava/lang/String;", intBeanClazzName, method.getName(), propertyName); } else { info = returnType.getAnnotation(Serializable.class); canSerialize = info != null && info.serialize() && info.types().indexOf("json") > -1; if (canSerialize) { createBeanSerializationCode(visitor, method.getName(), propertyName, returnType, intBeanClazzName); } else { createPropertySerializationCode(visitor, intSerializerClazzName, "serializeObject", "Ljava/lang/Object;", "L" + returnType.getName().replace('.', '/') + ";", intBeanClazzName, method.getName(), propertyName); } } } } visitor.visitInsn(Opcodes.RETURN); visitor.visitMaxs(8, 7); visitor.visitEnd(); writer.visitEnd(); byte[] clazzBytes = writer.toByteArray(); ClassLoader controllerLoader = null; if (classLoader.hasLoaded(beanClazz)) { controllerLoader = beanClazz.getClassLoader(); } else { controllerLoader = this.classLoader; } Class<?> clazz = Serialization.loadClass(controllerLoader, intSerializerClazzName.replace('/', '.'), clazzBytes); serializer = (JsonSerializer<T>) clazz.newInstance(); String propertyName = Serialization.createPropertyNameFromClass(beanClazz); serializer.setName(propertyName); serializer.setType(beanClazz); serializer.setSerializerFactory(factory); serializers.put(beanClazz, serializer); return serializer; } } catch (IllegalAccessException e) { throw new SerializerFactoryException("Can't create JSON serializer for " + beanClazz.getName(), e); } catch (InstantiationException e) { throw new SerializerFactoryException("Can't create JSON serializer for " + beanClazz.getName(), e); } }
From source file:com.nginious.http.serialize.JsonSerializerCreator.java
License:Apache License
/** * Creates bytecode for serializing a bean property which returns a collection of opaque objects. * // w w w . ja v a 2s . c om * @param visitor method visitor used for creating bytecode * @param returnType return type of get method in bean * @param intBeanClazzName binary name of bean * @param methodName binary name of get method in bean */ private void createObjectCollectionSerializationCode(MethodVisitor visitor, Class<?> returnType, String intBeanClazzName, String methodName, String propertyName) { visitor.visitTypeInsn(Opcodes.NEW, "com/nginious/http/serialize/JsonObjectCollectionSerializer"); visitor.visitInsn(Opcodes.DUP); visitor.visitMethodInsn(Opcodes.INVOKESPECIAL, "com/nginious/http/serialize/JsonObjectCollectionSerializer", "<init>", "()V"); visitor.visitVarInsn(Opcodes.ASTORE, 4); visitor.visitVarInsn(Opcodes.ALOAD, 4); String intReturnClazzName = returnType.getName().replace('.', '/'); visitor.visitVarInsn(Opcodes.ALOAD, 3); visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, intBeanClazzName, methodName, "()L" + intReturnClazzName + ";"); visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "com/nginious/http/serialize/JsonObjectCollectionSerializer", "serialize", "(Ljava/util/Collection;)Lorg/json/JSONArray;"); visitor.visitVarInsn(Opcodes.ASTORE, 4); visitor.visitVarInsn(Opcodes.ALOAD, 1); visitor.visitLdcInsn(propertyName); visitor.visitVarInsn(Opcodes.ALOAD, 4); visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "org/json/JSONObject", "put", "(Ljava/lang/String;Ljava/lang/Object;)Lorg/json/JSONObject;"); }
From source file:com.nginious.http.serialize.JsonSerializerCreator.java
License:Apache License
/** * Creates bytecode for serializing a bean property which returns a collection of beans that are serializable. Bean serializability * is determined as described in the class description. * /* w ww . j a va2s. co m*/ * @param visitor method visitor used for creating bytecode * @param intBeanClazzName binary class name of bean * @param methodName binary name of get method in bean returning collection * @param returnType return type of get method in bean * @param collectionBeanType class of serializable bean found in collection */ private void createBeanCollectionSerializationCode(MethodVisitor visitor, String intBeanClazzName, String methodName, String propertyName, Class<?> returnType, Class<?> collectionBeanType) { visitor.visitVarInsn(Opcodes.ALOAD, 0); visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "com/nginious/http/serialize/JsonSerializer", "getSerializerFactory", "()Lcom/nginious/http/serialize/SerializerFactoryImpl;"); visitor.visitLdcInsn(collectionBeanType.getName()); visitor.visitMethodInsn(Opcodes.INVOKESTATIC, "java/lang/Class", "forName", "(Ljava/lang/String;)Ljava/lang/Class;"); visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "com/nginious/http/serialize/SerializerFactoryImpl", "createJsonSerializer", "(Ljava/lang/Class;)Lcom/nginious/http/serialize/JsonSerializer;"); visitor.visitVarInsn(Opcodes.ASTORE, 4); visitor.visitTypeInsn(Opcodes.NEW, "com/nginious/http/serialize/JsonBeanCollectionSerializer"); visitor.visitInsn(Opcodes.DUP); visitor.visitVarInsn(Opcodes.ALOAD, 4); visitor.visitMethodInsn(Opcodes.INVOKESPECIAL, "com/nginious/http/serialize/JsonBeanCollectionSerializer", "<init>", "(Lcom/nginious/http/serialize/JsonSerializer;)V"); visitor.visitVarInsn(Opcodes.ASTORE, 5); visitor.visitVarInsn(Opcodes.ALOAD, 5); String intReturnClazzName = returnType.getName().replace('.', '/'); visitor.visitVarInsn(Opcodes.ALOAD, 3); visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, intBeanClazzName, methodName, "()L" + intReturnClazzName + ";"); visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "com/nginious/http/serialize/JsonBeanCollectionSerializer", "serialize", "(Ljava/util/Collection;)Lorg/json/JSONArray;"); visitor.visitVarInsn(Opcodes.ASTORE, 5); visitor.visitVarInsn(Opcodes.ALOAD, 1); visitor.visitLdcInsn(propertyName); visitor.visitVarInsn(Opcodes.ALOAD, 5); visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "org/json/JSONObject", "put", "(Ljava/lang/String;Ljava/lang/Object;)Lorg/json/JSONObject;"); }
From source file:com.nginious.http.serialize.JsonSerializerCreator.java
License:Apache License
/** * Creates bytecode which implements the {@link JsonSerializer#serializeProperties(org.json.JSONObject, Object)} * method for the serializer class being created. * // w w w . j ava2s . c om * @param writer class byte code writer * @param intBeanClazzName binary name of serializer class being generated * @return a method visitor for writing bytecode inside the generated method */ private MethodVisitor createSerializeMethod(ClassWriter writer, String intBeanClazzName) { String[] exceptions = { "com/nginious/serialize/SerializerException" }; MethodVisitor visitor = writer.visitMethod(Opcodes.ACC_PUBLIC, "serializeProperties", "(Lorg/json/JSONObject;Ljava/lang/Object;)V", null, exceptions); visitor.visitCode(); Label label = new Label(); visitor.visitVarInsn(Opcodes.ALOAD, 2); visitor.visitJumpInsn(Opcodes.IFNONNULL, label); visitor.visitInsn(Opcodes.RETURN); visitor.visitLabel(label); visitor.visitVarInsn(Opcodes.ALOAD, 2); visitor.visitTypeInsn(Opcodes.CHECKCAST, intBeanClazzName); visitor.visitIntInsn(Opcodes.ASTORE, 3); return visitor; }
From source file:com.nginious.http.serialize.QueryDeserializerCreator.java
License:Apache License
/** * Creates a query deserializer for the specified bean class unless a deserializer has already * been created. Created deserializers are cached and returned on subsequent calls to this method. * //w w w.ja v a 2 s. c o m * @param <T> class type for bean * @param beanClazz bean class for which a deserializer should be created * @return the created deserializer * @throws SerializerFactoryException if unable to create deserializer or class is not a bean */ @SuppressWarnings("unchecked") protected <T> QueryDeserializer<T> create(Class<T> beanClazz) throws SerializerFactoryException { QueryDeserializer<T> deserializer = (QueryDeserializer<T>) deserializers.get(beanClazz); if (deserializer != null) { return deserializer; } try { synchronized (this) { deserializer = (QueryDeserializer<T>) deserializers.get(beanClazz); if (deserializer != null) { return deserializer; } checkDeserializability(beanClazz, "query"); String intBeanClazzName = Serialization.createInternalClassName(beanClazz); Method[] methods = beanClazz.getMethods(); String intDeserializerClazzName = new StringBuffer(intBeanClazzName).append("QueryDeserializer") .toString(); // Create class ClassWriter writer = new ClassWriter(0); String signature = Serialization.createClassSignature("com/nginious/serialize/QueryDeserializer", intBeanClazzName); writer.visit(Opcodes.V1_6, Opcodes.ACC_PUBLIC, intDeserializerClazzName, signature, "com/nginious/http/serialize/QueryDeserializer", null); // Create constructor Serialization.createConstructor(writer, "com/nginious/http/serialize/QueryDeserializer"); // Create deserialize method MethodVisitor visitor = createDeserializeMethod(writer, intBeanClazzName); for (Method method : methods) { Serializable info = method.getAnnotation(Serializable.class); boolean canDeserialize = info == null || (info != null && info.deserialize() && info.types().indexOf("query") > -1); if (canDeserialize && method.getName().startsWith("set") && method.getReturnType().equals(void.class) && method.getParameterTypes().length == 1) { Class<?>[] parameterTypes = method.getParameterTypes(); Class<?> parameterType = parameterTypes[0]; if (parameterType.isArray()) { Class<?> arrayType = parameterType.getComponentType(); if (arrayType.equals(boolean.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeBooleanArray", "[Z", "[Z", intBeanClazzName, method.getName()); } else if (arrayType.equals(double.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeDoubleArray", "[D", "[D", intBeanClazzName, method.getName()); } else if (arrayType.equals(float.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeFloatArray", "[F", "[F", intBeanClazzName, method.getName()); } else if (arrayType.equals(int.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeIntArray", "[I", "[I", intBeanClazzName, method.getName()); } else if (arrayType.equals(long.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeLongArray", "[J", "[J", intBeanClazzName, method.getName()); } else if (arrayType.equals(short.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeShortArray", "[S", "[S", intBeanClazzName, method.getName()); } else if (arrayType.equals(String.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeStringArray", "[Ljava/lang/String;", "[Ljava/lang/String;", intBeanClazzName, method.getName()); } } else if (parameterType.isPrimitive()) { if (parameterType.equals(boolean.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeBoolean", "Z", "Z", intBeanClazzName, method.getName()); } else if (parameterType.equals(double.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeDouble", "D", "D", intBeanClazzName, method.getName()); } else if (parameterType.equals(float.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeFloat", "F", "F", intBeanClazzName, method.getName()); } else if (parameterType.equals(int.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeInt", "I", "I", intBeanClazzName, method.getName()); } else if (parameterType.equals(long.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeLong", "J", "J", intBeanClazzName, method.getName()); } else if (parameterType.equals(short.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeShort", "S", "S", intBeanClazzName, method.getName()); } } else if (parameterType.equals(Calendar.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeCalendar", "Ljava/util/Calendar;", "Ljava/util/Calendar;", intBeanClazzName, method.getName()); } else if (parameterType.equals(Date.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeDate", "Ljava/util/Date;", "Ljava/util/Date;", intBeanClazzName, method.getName()); } else if (parameterType.equals(String.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeString", "Ljava/lang/String;", "Ljava/lang/String;", intBeanClazzName, method.getName()); } } } visitor.visitVarInsn(Opcodes.ALOAD, 3); visitor.visitInsn(Opcodes.ARETURN); visitor.visitMaxs(5, 4); visitor.visitEnd(); writer.visitEnd(); byte[] clazzBytes = writer.toByteArray(); ClassLoader controllerLoader = null; if (classLoader.hasLoaded(beanClazz)) { controllerLoader = beanClazz.getClassLoader(); } else { controllerLoader = this.classLoader; } Class<?> clazz = Serialization.loadClass(controllerLoader, intDeserializerClazzName.replace('/', '.'), clazzBytes); deserializer = (QueryDeserializer<T>) clazz.newInstance(); deserializers.put(beanClazz, deserializer); return deserializer; } } catch (IllegalAccessException e) { throw new SerializerFactoryException(e); } catch (InstantiationException e) { throw new SerializerFactoryException(e); } }
From source file:com.nginious.http.serialize.QueryDeserializerCreator.java
License:Apache License
/** * Creates bytecode which implements the {@link QueryDeserializer#deserialize(se.netdigital.http.HttpRequest)} method for * the deserializer class being created. * // w w w.j av a 2s .co m * @param writer class byte code writer * @param intBeanClazzName name of deserializer class being generated * @return a method visitor for writing bytecode inside the generated method */ private MethodVisitor createDeserializeMethod(ClassWriter writer, String intBeanClazzName) { String[] exceptions = { "com/nginious/serialize/SerializerException" }; MethodVisitor visitor = writer.visitMethod(Opcodes.ACC_PUBLIC, "deserialize", "(Lcom/nginious/http/HttpRequest;)Ljava/lang/Object;", null, exceptions); visitor.visitCode(); visitor.visitTypeInsn(Opcodes.NEW, intBeanClazzName); visitor.visitInsn(Opcodes.DUP); visitor.visitMethodInsn(Opcodes.INVOKESPECIAL, intBeanClazzName, "<init>", "()V"); visitor.visitVarInsn(Opcodes.ASTORE, 3); return visitor; }
From source file:com.nginious.http.serialize.Serialization.java
License:Apache License
/** * Creates bytecode for a no argument constructor. The created bytecode also calls the no argument constructor * in the superclass with the specified name. * //from w ww. j a v a2 s .c o m * @param writer bytecode writer * @param superclassName binary name of superclass */ static void createConstructor(ClassWriter writer, String superclassName) { MethodVisitor visitor = writer.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "()V", null, null); visitor.visitCode(); visitor.visitVarInsn(Opcodes.ALOAD, 0); visitor.visitMethodInsn(Opcodes.INVOKESPECIAL, superclassName, "<init>", "()V"); visitor.visitInsn(Opcodes.RETURN); visitor.visitMaxs(1, 1); visitor.visitEnd(); }
From source file:com.nginious.http.serialize.XmlDeserializerCreator.java
License:Apache License
/** * Creates a XML deserializer for the specified bean class unless a deserializer has already * been created. Created deserializers are cached and returned on subsequent calls to this method. * // w w w. ja v a 2 s.c o m * @param <T> class type for bean * @param beanClazz bean class for which a deserializer should be created * @return the created deserializer * @throws SerializerFactoryException if unable to create deserializer or class is not a bean */ @SuppressWarnings("unchecked") protected <T> XmlDeserializer<T> create(Class<T> beanClazz) throws SerializerFactoryException { XmlDeserializer<T> deserializer = (XmlDeserializer<T>) deserializers.get(beanClazz); if (deserializer != null) { return deserializer; } try { synchronized (this) { deserializer = (XmlDeserializer<T>) deserializers.get(beanClazz); if (deserializer != null) { return deserializer; } checkDeserializability(beanClazz, "xml"); String intBeanClazzName = Serialization.createInternalClassName(beanClazz); Method[] methods = beanClazz.getMethods(); String intDeserializerClazzName = new StringBuffer(intBeanClazzName).append("XmlDeserializer") .toString(); // Create class ClassWriter writer = new ClassWriter(0); String signature = Serialization.createClassSignature("com/nginious/http/serialize/XmlDeserializer", intBeanClazzName); writer.visit(Opcodes.V1_6, Opcodes.ACC_PUBLIC, intDeserializerClazzName, signature, "com/nginious/http/serialize/XmlDeserializer", null); // Create constructor Serialization.createConstructor(writer, "com/nginious/http/serialize/XmlDeserializer"); // Create deserialize method MethodVisitor visitor = createDeserializeMethod(writer, intBeanClazzName); for (Method method : methods) { Serializable info = method.getAnnotation(Serializable.class); boolean canDeserialize = info == null || (info != null && info.deserialize() && info.types().indexOf("xml") > -1); if (canDeserialize && method.getName().startsWith("set") && method.getReturnType().equals(void.class) && method.getParameterTypes().length == 1) { Class<?>[] parameterTypes = method.getParameterTypes(); Class<?> parameterType = parameterTypes[0]; if (parameterType.isArray()) { Class<?> arrayType = parameterType.getComponentType(); if (arrayType.equals(boolean.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeBooleanArray", "[Z", "[Z", intBeanClazzName, method.getName()); } else if (arrayType.equals(double.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeDoubleArray", "[D", "[D", intBeanClazzName, method.getName()); } else if (arrayType.equals(float.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeFloatArray", "[F", "[F", intBeanClazzName, method.getName()); } else if (arrayType.equals(int.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeIntArray", "[I", "[I", intBeanClazzName, method.getName()); } else if (arrayType.equals(long.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeLongArray", "[J", "[J", intBeanClazzName, method.getName()); } else if (arrayType.equals(short.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeShortArray", "[S", "[S", intBeanClazzName, method.getName()); } else if (arrayType.equals(String.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeStringArray", "[Ljava/lang/String;", "[Ljava/lang/String;", intBeanClazzName, method.getName()); } } else if (parameterType.isPrimitive()) { if (parameterType.equals(boolean.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeBoolean", "Z", "Z", intBeanClazzName, method.getName()); } else if (parameterType.equals(double.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeDouble", "D", "D", intBeanClazzName, method.getName()); } else if (parameterType.equals(float.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeFloat", "F", "F", intBeanClazzName, method.getName()); } else if (parameterType.equals(int.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeInt", "I", "I", intBeanClazzName, method.getName()); } else if (parameterType.equals(long.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeLong", "J", "J", intBeanClazzName, method.getName()); } else if (parameterType.equals(short.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeShort", "S", "S", intBeanClazzName, method.getName()); } } else if (parameterType.equals(Calendar.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeCalendar", "Ljava/util/Calendar;", "Ljava/util/Calendar;", intBeanClazzName, method.getName()); } else if (parameterType.equals(Date.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeDate", "Ljava/util/Date;", "Ljava/util/Date;", intBeanClazzName, method.getName()); } else if (parameterType.equals(String.class)) { createPropertyDeserializationCode(visitor, intDeserializerClazzName, "deserializeString", "Ljava/lang/String;", "Ljava/lang/String;", intBeanClazzName, method.getName()); } } } visitor.visitVarInsn(Opcodes.ALOAD, 3); visitor.visitInsn(Opcodes.ARETURN); visitor.visitMaxs(5, 4); visitor.visitEnd(); writer.visitEnd(); byte[] clazzBytes = writer.toByteArray(); ClassLoader controllerLoader = null; if (classLoader.hasLoaded(beanClazz)) { controllerLoader = beanClazz.getClassLoader(); } else { controllerLoader = this.classLoader; } Class<?> clazz = Serialization.loadClass(controllerLoader, intDeserializerClazzName.replace('/', '.'), clazzBytes); deserializer = (XmlDeserializer<T>) clazz.newInstance(); deserializers.put(beanClazz, deserializer); return deserializer; } } catch (IllegalAccessException e) { throw new SerializerFactoryException(e); } catch (InstantiationException e) { throw new SerializerFactoryException(e); } }
From source file:com.nginious.http.serialize.XmlDeserializerCreator.java
License:Apache License
/** * Creates bytecode which implements the {@link XmlDeserializer#deserialize(java.util.HashMap)} method for * the deserializer class being created. * /*from ww w . ja v a2 s.c om*/ * @param writer class byte code writer * @param intBeanClazzName name of deserializer class being generated * @return a method visitor for writing bytecode inside the generated method */ private MethodVisitor createDeserializeMethod(ClassWriter writer, String intBeanClazzName) { String[] exceptions = { "com/nginious/http/serialize/SerializerException" }; MethodVisitor visitor = writer.visitMethod(Opcodes.ACC_PUBLIC, "deserialize", "(Ljava/util/HashMap;)Ljava/lang/Object;", null, exceptions); visitor.visitCode(); visitor.visitTypeInsn(Opcodes.NEW, intBeanClazzName); visitor.visitInsn(Opcodes.DUP); visitor.visitMethodInsn(Opcodes.INVOKESPECIAL, intBeanClazzName, "<init>", "()V"); visitor.visitVarInsn(Opcodes.ASTORE, 3); return visitor; }
From source file:com.nginious.http.serialize.XmlSerializerCreator.java
License:Apache License
/** * Creates a XML serializer for the specified bean class unless a serializer has already been * created. Created serializers are cached and returned on subsequent calls to this method. * /*from w w w .java 2 s .co m*/ * @param factory serializer factory * @param <T> class type for bean * @param beanClazz bean class for which a serializer should be created * @return the created serializer * @throws SerializerFactoryException if unable to create serializer or class is not a bean */ @SuppressWarnings("unchecked") <T> XmlSerializer<T> create(SerializerFactoryImpl factory, Class<T> beanClazz) throws SerializerFactoryException { XmlSerializer<T> serializer = (XmlSerializer<T>) serializers.get(beanClazz); if (serializer != null) { return serializer; } try { synchronized (this) { checkSerializability(beanClazz, "xml"); String intBeanClazzName = Serialization.createInternalClassName(beanClazz); Method[] methods = beanClazz.getMethods(); String intSerializerClazzName = new StringBuffer(intBeanClazzName).append("XmlSerializer") .toString(); // Create class ClassWriter writer = new ClassWriter(0); String signature = Serialization.createClassSignature("com/nginious/http/serialize/XmlSerializer", intBeanClazzName); writer.visit(Opcodes.V1_6, Opcodes.ACC_PUBLIC, intSerializerClazzName, signature, "com/nginious/http/serialize/XmlSerializer", null); // Create constructor Serialization.createConstructor(writer, "com/nginious/http/serialize/XmlSerializer"); // Create serialize method MethodVisitor visitor = createSerializeMethod(writer, intBeanClazzName); for (Method method : methods) { Serializable info = method.getAnnotation(Serializable.class); boolean canSerialize = info == null || (info != null && info.serialize() && info.types().indexOf("xml") > -1); if (canSerialize && method.getName().startsWith("get") && !method.getName().equals("getClass") && method.getReturnType() != null && method.getParameterTypes().length == 0) { Class<?> returnType = method.getReturnType(); String propertyName = getPropertyName(method); if (returnType.isPrimitive()) { if (returnType.equals(boolean.class)) { createPropertySerializationCode(visitor, intSerializerClazzName, "serializeBoolean", "Z", "Z", intBeanClazzName, method.getName(), propertyName); } else if (returnType.equals(double.class)) { createPropertySerializationCode(visitor, intSerializerClazzName, "serializeDouble", "D", "D", intBeanClazzName, method.getName(), propertyName); } else if (returnType.equals(float.class)) { createPropertySerializationCode(visitor, intSerializerClazzName, "serializeFloat", "F", "F", intBeanClazzName, method.getName(), propertyName); } else if (returnType.equals(int.class)) { createPropertySerializationCode(visitor, intSerializerClazzName, "serializeInt", "I", "I", intBeanClazzName, method.getName(), propertyName); } else if (returnType.equals(long.class)) { createPropertySerializationCode(visitor, intSerializerClazzName, "serializeLong", "J", "J", intBeanClazzName, method.getName(), propertyName); } else if (returnType.equals(short.class)) { createPropertySerializationCode(visitor, intSerializerClazzName, "serializeShort", "S", "S", intBeanClazzName, method.getName(), propertyName); } } else if (Collection.class.isAssignableFrom(returnType)) { Class<?> collectionType = canSerializeGenericCollectionType(method, "json"); if (collectionType != null) { createBeanCollectionSerializationCode(visitor, intBeanClazzName, method.getName(), propertyName, returnType, collectionType); } else { createObjectCollectionSerializationCode(visitor, intBeanClazzName, method.getName(), propertyName, returnType); } } else if (returnType.equals(Calendar.class)) { createPropertySerializationCode(visitor, intSerializerClazzName, "serializeCalendar", "Ljava/util/Calendar;", "Ljava/util/Calendar;", intBeanClazzName, method.getName(), propertyName); } else if (returnType.equals(Date.class)) { createPropertySerializationCode(visitor, intSerializerClazzName, "serializeDate", "Ljava/util/Date;", "Ljava/util/Date;", intBeanClazzName, method.getName(), propertyName); } else if (returnType.equals(String.class)) { createPropertySerializationCode(visitor, intSerializerClazzName, "serializeString", "Ljava/lang/String;", "Ljava/lang/String;", intBeanClazzName, method.getName(), propertyName); } else { info = returnType.getAnnotation(Serializable.class); canSerialize = info != null && info.serialize() && info.types().indexOf("json") > -1; if (canSerialize) { createBeanSerializationCode(visitor, method.getName(), propertyName, returnType, intBeanClazzName); } else { createPropertySerializationCode(visitor, intSerializerClazzName, "serializeObject", "Ljava/lang/Object;", "L" + returnType.getName().replace('.', '/') + ";", intBeanClazzName, method.getName(), propertyName); } } } } visitor.visitInsn(Opcodes.RETURN); visitor.visitMaxs(7, 6); visitor.visitEnd(); writer.visitEnd(); byte[] clazzBytes = writer.toByteArray(); ClassLoader controllerLoader = null; if (classLoader.hasLoaded(beanClazz)) { controllerLoader = beanClazz.getClassLoader(); } else { controllerLoader = this.classLoader; } Class<?> clazz = Serialization.loadClass(controllerLoader, intSerializerClazzName.replace('/', '.'), clazzBytes); serializer = (XmlSerializer<T>) clazz.newInstance(); serializer.setName(Serialization.createPropertyNameFromClass(beanClazz)); serializer.setType(beanClazz); serializer.setSerializerFactory(factory); serializers.put(beanClazz, serializer); return serializer; } } catch (IllegalAccessException e) { throw new SerializerFactoryException("Can't create XML serializer for " + beanClazz.getName(), e); } catch (InstantiationException e) { throw new SerializerFactoryException("Can't create XML serializer for " + beanClazz.getName(), e); } }