/**
* Adapts the source object to a view object.
*
* @param mapper An action that is invoked for each source object in the graph that is to be
* adapted. The action can influence how the source object is adapted via the provided {@link
* SourceObjectMapping}.
*/
public <T, S> T adapt(
Class<T> targetType, S sourceObject, Action<? super SourceObjectMapping> mapper) {
if (sourceObject == null) {
return null;
}
Class<? extends T> wrapperType = targetTypeProvider.getTargetType(targetType, sourceObject);
DefaultSourceObjectMapping mapping =
new DefaultSourceObjectMapping(sourceObject, targetType, wrapperType);
mapper.execute(mapping);
wrapperType = mapping.wrapperType.asSubclass(targetType);
if (wrapperType.isInstance(sourceObject)) {
return wrapperType.cast(sourceObject);
}
if (targetType.isEnum()) {
return adaptToEnum(targetType, sourceObject);
}
MixInMethodInvoker mixInMethodInvoker = null;
if (mapping.mixInType != null) {
mixInMethodInvoker =
new MixInMethodInvoker(
mapping.mixInType, new AdaptingMethodInvoker(mapper, new ReflectionMethodInvoker()));
}
MethodInvoker overrideInvoker = chainInvokers(mixInMethodInvoker, mapping.overrideInvoker);
Object proxy =
Proxy.newProxyInstance(
wrapperType.getClassLoader(),
new Class<?>[] {wrapperType},
new InvocationHandlerImpl(sourceObject, overrideInvoker, mapper));
if (mixInMethodInvoker != null) {
mixInMethodInvoker.setProxy(proxy);
}
return wrapperType.cast(proxy);
}
private PersonBean getNonOwnerProxy(PersonBean person) {
return (PersonBean)
Proxy.newProxyInstance(
person.getClass().getClassLoader(),
person.getClass().getInterfaces(),
new NonOwnerInvocationHandler(person));
}
/**
* Builds a new AgentMBeanServerConnectionFactory and returns the underlying
* MBeanServerConnection
*
* @return a new MBeanServerConnection
*/
public MBeanServerConnection build() {
final String key = buildKey();
MBeanServerConnection conn = INSTANCES.get(key);
if (conn == null) {
synchronized (INSTANCES) {
conn = INSTANCES.get(key);
if (conn == null) {
conn =
(MBeanServerConnection)
Proxy.newProxyInstance(
Thread.currentThread().getContextClassLoader(),
new Class[] {MBeanServerConnection.class},
new AgentMBeanServerConnectionFactory(this));
INSTANCES.put(key, conn);
channel
.getCloseFuture()
.addListener(
new ChannelFutureListener() {
@Override
public void operationComplete(ChannelFuture future) throws Exception {
INSTANCES.remove(key);
}
});
}
}
}
return conn;
}
public static Robot newNullRobot(Class<? extends Robot> type) {
return (Robot)
Proxy.newProxyInstance(
NullRobot.class.getClassLoader(),
new Class[] {Null.class, Robot.class},
new NullRobotProxyHandler(type));
}
/**
* Create a default object of the given type. Prefers constructors with as few arguments as
* possible. Creates an empty proxy for interfaces.
*
* @param type type to instantiate
* @return default instance
* @throws Exception if the default instance could not be created
*/
private static Object instantiateType(Class<?> type) throws Exception {
if (type.isPrimitive()) return Defaults.defaultValue(type);
else if (type == Void.class) return null;
else if (type.isArray()) return Array.newInstance(type, 0);
else if (type.isInterface())
return Proxy.newProxyInstance(
type.getClassLoader(),
new Class[] {type},
new InvocationHandler() {
@Override
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
return null;
}
});
// Take a constructor with as few params as possible
Constructor constructor = type.getDeclaredConstructors()[0];
for (Constructor<?> c : type.getDeclaredConstructors()) {
if (c.getParameterTypes().length < constructor.getParameterTypes().length) constructor = c;
}
Object[] params = new Object[constructor.getParameterTypes().length];
for (int i = 0; i < constructor.getParameterTypes().length; i++) {
params[i] = instantiateType(constructor.getParameterTypes()[i]);
}
return constructor.newInstance(params);
}
ConnectionWrapper(Connection con) {
this.connection =
(Connection)
Proxy.newProxyInstance(
con.getClass().getClassLoader(), con.getClass().getInterfaces(), this);
m_originConnection = con;
}
/**
* Creates a new proxy with the specified URL. The returned object is a proxy with the interface
* specified by api.
*
* <pre>
* String url = "http://localhost:8080/ejb/hello");
* HelloHome hello = (HelloHome) factory.create(HelloHome.class, url);
* </pre>
*
* @param api the interface the proxy class needs to implement
* @param url the URL where the client object is located.
* @return a proxy to the object with the specified interface.
*/
public Object create(Class api, String urlName, ClassLoader loader) throws MalformedURLException {
URL url = new URL(urlName);
HessianProxy handler = new HessianProxy(this, url);
return Proxy.newProxyInstance(
api.getClassLoader(), new Class[] {api, HessianRemoteObject.class}, handler);
}
public static SnapshotMBeanServerConnection newSnapshot(MBeanServerConnection mbsc) {
final InvocationHandler ih = new SnapshotInvocationHandler(mbsc);
return (SnapshotMBeanServerConnection)
Proxy.newProxyInstance(
Snapshot.class.getClassLoader(),
new Class[] {SnapshotMBeanServerConnection.class},
ih);
}
/**
* Creates a {@link Proxy} implementation for a given interface, in which all methods are empty.
* Non-void methods will return a default value according to the return type: {@literal 0} for
* {@code int}, {@literal null} for a reference type, and so on.
*
* <p>The {@code equals}, {@code hashCode}, and {@code toString} methods inherited from {@code
* java.lang.Object} are overridden with an appropriate implementation in each case: {@code
* equals} is implemented by comparing the two object references (the proxy instance and the
* method argument) for equality; {@code hashCode} is implemented to return the identity hash code
* for the proxy instance; and {@code toString} returns the standard string representation that
* {@code Object#toString} would have returned.
*
* <p>This method is just a convenience for some uses of the <em>Mockups</em> API. In <em>JMockit
* Expectations</em> in particular, mocked instances will be automatically created and assigned to
* any mock fields or parameters.
*
* @param loader the class loader under which to define the proxy class; usually this would be the
* application class loader, which can be obtained from any application class
* @param interfaceToBeProxied a {@code Class} object for an interface
* @return the created proxy instance
* @see #newEmptyProxy(Class)
* @see #newEmptyProxy(Type...)
* @see <a
* href="http://code.google.com/p/jmockit/source/browse/trunk/samples/orderMngmntWebapp/test/orderMngr/domain/order/OrderRepository_MockupsAPI_Test.java#186">
* Example</a>
*/
public static <E> E newEmptyProxy(ClassLoader loader, Class<E> interfaceToBeProxied) {
Class<?>[] interfaces =
loader == null
? new Class<?>[] {interfaceToBeProxied}
: new Class<?>[] {interfaceToBeProxied, EmptyProxy.class};
//noinspection unchecked
return (E) Proxy.newProxyInstance(loader, interfaces, MockInvocationHandler.INSTANCE);
}
public static void main(String[] args) {
RealObject real = new RealObject();
consumer(real);
// Insert a proxy and call again:
Interface proxy =
(Interface)
Proxy.newProxyInstance(
Interface.class.getClassLoader(),
new Class[] {Interface.class},
new DynamicProxyHandler(real));
consumer(proxy);
}
/** ** XAConnection interface *** */
public Connection getConnection() throws SQLException {
if (logger.logDebug()) debug("PGXAConnection.getConnection called");
Connection conn = super.getConnection();
// When we're outside an XA transaction, autocommit
// is supposed to be true, per usual JDBC convention.
// When an XA transaction is in progress, it should be
// false.
if (state == STATE_IDLE) conn.setAutoCommit(true);
/*
* Wrap the connection in a proxy to forbid application from
* fiddling with transaction state directly during an XA transaction
*/
ConnectionHandler handler = new ConnectionHandler(conn);
return (Connection)
Proxy.newProxyInstance(
getClass().getClassLoader(),
new Class[] {Connection.class, PGConnection.class},
handler);
}
/**
* Create {@link us.ihmc.simulationconstructionset.gui.actions.ActionsTest.MethodCallTester} with
* a proxy object for the given interface that logs all method calls.
*
* @param interfaceClass interface to proxy
* @param forwardInstance interface implementation that will be called when a call is logged (can
* be null)
* @param <T> interface type
* @return method tester instance
*/
private static <T> MethodCallTester<T> createMethodTesterForInterface(
Class<T> interfaceClass, final T forwardInstance) {
final List<MethodInvocation> invocations = new ArrayList<>();
//noinspection unchecked
T mock =
(T)
Proxy.newProxyInstance(
interfaceClass.getClassLoader(),
new Class[] {interfaceClass},
new InvocationHandler() {
@Override
public Object invoke(Object proxy, Method method, Object[] args)
throws Throwable {
invocations.add(new MethodInvocation(method.getName(), args));
if (forwardInstance != null) return method.invoke(forwardInstance, args);
return null;
}
});
return new MethodCallTester<>(mock, interfaceClass, invocations);
}
@Override
public ConfigBeanProxy compute(final Class<?> proxyType) throws ComputationErrorException {
ClassLoader cl;
if (System.getSecurityManager() != null) {
cl =
AccessController.doPrivileged(
new PrivilegedAction<ClassLoader>() {
@Override
public ClassLoader run() {
return proxyType.getClassLoader();
}
});
} else {
cl = proxyType.getClassLoader();
}
ConfigBeanProxy retVal =
(ConfigBeanProxy) Proxy.newProxyInstance(cl, new Class[] {proxyType}, dom);
return retVal;
}
/**
* Returns the conn.
*
* @return Connection
*/
public Connection getConnection() {
return (Connection)
Proxy.newProxyInstance(
conn.getClass().getClassLoader(), conn.getClass().getInterfaces(), this);
}
