123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154 |
- /*
- * Copyright 2011 Vaadin Ltd.
- *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not
- * use this file except in compliance with the License. You may obtain a copy of
- * the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations under
- * the License.
- */
-
- package com.vaadin.server;
-
- import java.lang.reflect.Field;
- import java.lang.reflect.InvocationTargetException;
- import java.lang.reflect.Method;
- import java.util.HashMap;
- import java.util.Map;
- import java.util.logging.Level;
- import java.util.logging.Logger;
-
- import com.vaadin.shared.Connector;
-
- /**
- * Server side RPC manager that handles RPC calls coming from the client.
- *
- * Each {@link RpcTarget} (typically a {@link ClientConnector}) should have its
- * own instance of {@link ServerRpcManager} if it wants to receive RPC calls
- * from the client.
- *
- * @since 7.0
- */
- public class ServerRpcManager<T> implements RpcManager {
-
- private final T implementation;
- private final Class<T> rpcInterface;
-
- private static final Map<Class<?>, Class<?>> boxedTypes = new HashMap<Class<?>, Class<?>>();
- static {
- try {
- Class<?>[] boxClasses = new Class<?>[] { Boolean.class, Byte.class,
- Short.class, Character.class, Integer.class, Long.class,
- Float.class, Double.class };
- for (Class<?> boxClass : boxClasses) {
- Field typeField = boxClass.getField("TYPE");
- Class<?> primitiveType = (Class<?>) typeField.get(boxClass);
- boxedTypes.put(primitiveType, boxClass);
- }
- } catch (Exception e) {
- throw new RuntimeException(e);
- }
- }
-
- /**
- * Create a RPC manager for an RPC target.
- *
- * @param target
- * RPC call target (normally a {@link Connector})
- * @param implementation
- * RPC interface implementation for the target
- * @param rpcInterface
- * RPC interface type
- */
- public ServerRpcManager(T implementation, Class<T> rpcInterface) {
- this.implementation = implementation;
- this.rpcInterface = rpcInterface;
- }
-
- /**
- * Invoke a method in a server side RPC target class. This method is to be
- * used by the RPC framework and unit testing tools only.
- *
- * @param target
- * non-null target of the RPC call
- * @param invocation
- * method invocation to perform
- * @throws RpcInvocationException
- */
- public static void applyInvocation(RpcTarget target,
- ServerRpcMethodInvocation invocation) throws RpcInvocationException {
- RpcManager manager = target.getRpcManager(invocation
- .getInterfaceClass());
- if (manager != null) {
- manager.applyInvocation(invocation);
- } else {
- getLogger()
- .log(Level.WARNING,
- "RPC call received for RpcTarget "
- + target.getClass().getName()
- + " ("
- + invocation.getConnectorId()
- + ") but the target has not registered any RPC interfaces");
- }
- }
-
- /**
- * Returns the RPC interface implementation for the RPC target.
- *
- * @return RPC interface implementation
- */
- protected T getImplementation() {
- return implementation;
- }
-
- /**
- * Returns the RPC interface type managed by this RPC manager instance.
- *
- * @return RPC interface type
- */
- protected Class<T> getRpcInterface() {
- return rpcInterface;
- }
-
- /**
- * Invoke a method in a server side RPC target class. This method is to be
- * used by the RPC framework and unit testing tools only.
- *
- * @param invocation
- * method invocation to perform
- */
- @Override
- public void applyInvocation(ServerRpcMethodInvocation invocation)
- throws RpcInvocationException {
- Method method = invocation.getMethod();
- Class<?>[] parameterTypes = method.getParameterTypes();
- Object[] args = new Object[parameterTypes.length];
- Object[] arguments = invocation.getParameters();
- for (int i = 0; i < args.length; i++) {
- // no conversion needed for basic cases
- // Class<?> type = parameterTypes[i];
- // if (type.isPrimitive()) {
- // type = boxedTypes.get(type);
- // }
- args[i] = arguments[i];
- }
- try {
- method.invoke(implementation, args);
- } catch (Exception e) {
- throw new RpcInvocationException("Unable to invoke method "
- + invocation.getMethodName() + " in "
- + invocation.getInterfaceName(), e);
- }
- }
-
- private static Logger getLogger() {
- return Logger.getLogger(ServerRpcManager.class.getName());
- }
-
- }
|