diff options
Diffstat (limited to 'sandbox/sebastien/java/sca-node/modules/binding-rmi/src/main/java')
5 files changed, 460 insertions, 0 deletions
diff --git a/sandbox/sebastien/java/sca-node/modules/binding-rmi/src/main/java/org/apache/tuscany/sca/binding/rmi/RMIBinding.java b/sandbox/sebastien/java/sca-node/modules/binding-rmi/src/main/java/org/apache/tuscany/sca/binding/rmi/RMIBinding.java new file mode 100644 index 0000000000..906e0df652 --- /dev/null +++ b/sandbox/sebastien/java/sca-node/modules/binding-rmi/src/main/java/org/apache/tuscany/sca/binding/rmi/RMIBinding.java @@ -0,0 +1,77 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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 org.apache.tuscany.sca.binding.rmi; + +import org.apache.tuscany.sca.extension.helper.utils.AbstractBinding; + +/** + * Represents a binding to an RMI service. + * + * @version $Rev$ $Date$ + */ +public class RMIBinding extends AbstractBinding { + + private String host; + private String port; + private String serviceName; + + /** + * @return the host name of the RMI Service + */ + public String getHost() { + return host; + } + + /** + * @param rmiHostName the hostname of the RMI Service + */ + public void setHost(String rmiHostName) { + this.host = rmiHostName; + } + + /** + * @return the port number for the RMI Service + */ + public String getPort() { + return port; + } + + /** + * @param rmiPort the port number for the RMI Service + */ + public void setPort(String rmiPort) { + this.port = rmiPort; + } + + /** + * @return returns the RMI Service Name + */ + public String getServiceName() { + return serviceName; + } + + /** + * Sets the service name for the RMI Server + * + * @param rmiServiceName the name of the RMI service + */ + public void setServiceName(String rmiServiceName) { + this.serviceName = rmiServiceName; + } +} diff --git a/sandbox/sebastien/java/sca-node/modules/binding-rmi/src/main/java/org/apache/tuscany/sca/binding/rmi/RMIBindingActivator.java b/sandbox/sebastien/java/sca-node/modules/binding-rmi/src/main/java/org/apache/tuscany/sca/binding/rmi/RMIBindingActivator.java new file mode 100644 index 0000000000..1be70f57f7 --- /dev/null +++ b/sandbox/sebastien/java/sca-node/modules/binding-rmi/src/main/java/org/apache/tuscany/sca/binding/rmi/RMIBindingActivator.java @@ -0,0 +1,58 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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 org.apache.tuscany.sca.binding.rmi; + +import org.apache.tuscany.sca.assembly.Binding; +import org.apache.tuscany.sca.extension.helper.BindingActivator; +import org.apache.tuscany.sca.extension.helper.ComponentLifecycle; +import org.apache.tuscany.sca.extension.helper.InvokerFactory; +import org.apache.tuscany.sca.host.rmi.ExtensibleRMIHost; +import org.apache.tuscany.sca.host.rmi.RMIHost; +import org.apache.tuscany.sca.host.rmi.RMIHostExtensionPoint; +import org.apache.tuscany.sca.runtime.RuntimeComponent; +import org.apache.tuscany.sca.runtime.RuntimeComponentReference; +import org.apache.tuscany.sca.runtime.RuntimeComponentService; + +/** + * Binding Activator for the RMI Binding. + * + * @version $Rev$ $Date$ + */ +public class RMIBindingActivator implements BindingActivator<RMIBinding> { + + private RMIHost rmiHost; + + public RMIBindingActivator(RMIHostExtensionPoint rmiHosts) { + this.rmiHost = new ExtensibleRMIHost(rmiHosts); + } + + public Class<RMIBinding> getBindingClass() { + return RMIBinding.class; + } + + public InvokerFactory createInvokerFactory(RuntimeComponent rc, RuntimeComponentReference rcr, Binding b, RMIBinding binding) { + return new RMIReferenceInvokerFactory(rc, rcr, binding, rmiHost); + } + + public ComponentLifecycle createService(RuntimeComponent rc, RuntimeComponentService rcs, Binding b, RMIBinding binding) { + return new RMIService(rc, rcs, binding, rmiHost); + } + +} diff --git a/sandbox/sebastien/java/sca-node/modules/binding-rmi/src/main/java/org/apache/tuscany/sca/binding/rmi/RMIReferenceInvoker.java b/sandbox/sebastien/java/sca-node/modules/binding-rmi/src/main/java/org/apache/tuscany/sca/binding/rmi/RMIReferenceInvoker.java new file mode 100644 index 0000000000..069ed4a070 --- /dev/null +++ b/sandbox/sebastien/java/sca-node/modules/binding-rmi/src/main/java/org/apache/tuscany/sca/binding/rmi/RMIReferenceInvoker.java @@ -0,0 +1,88 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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 org.apache.tuscany.sca.binding.rmi; + +import java.lang.reflect.InvocationTargetException; +import java.lang.reflect.Method; +import java.rmi.Remote; + +import org.apache.tuscany.sca.host.rmi.RMIHost; +import org.apache.tuscany.sca.invocation.Invoker; +import org.apache.tuscany.sca.invocation.Message; +import org.apache.tuscany.sca.invocation.DataExchangeSemantics; + +/** + * Invoker for RMI References. + * + * @version $Rev$ $Date$ + */ +public class RMIReferenceInvoker implements Invoker, DataExchangeSemantics { + + private RMIHost rmiHost; + private String host; + private String port; + private String svcName; + private Method remoteMethod; + private Remote proxy; + + public RMIReferenceInvoker(RMIHost rmiHost, String host, String port, String svcName, Method remoteMethod) { + this.rmiHost = rmiHost; + this.remoteMethod = remoteMethod; + this.host = host; + this.port = port; + this.svcName = svcName; + } + + public Message invoke(Message msg) { + try { + + Object[] args = msg.getBody(); + Object resp = invokeTarget(args); + msg.setBody(resp); + + } catch (InvocationTargetException e) { + msg.setFaultBody(e.getCause()); + } catch (Throwable e) { + msg.setFaultBody(e); + } + + return msg; + } + + public Object invokeTarget(final Object payload) throws InvocationTargetException, SecurityException, NoSuchMethodException, IllegalArgumentException, IllegalAccessException { + if (proxy == null) { + proxy = rmiHost.findService(host, port, svcName); + // proxy = Naming.lookup(serviceURI); + } + + remoteMethod = proxy.getClass().getMethod(remoteMethod.getName(), remoteMethod.getParameterTypes()); + + if (payload != null && !payload.getClass().isArray()) { + return remoteMethod.invoke(proxy, payload); + } else { + return remoteMethod.invoke(proxy, (Object[])payload); + } + } + + public boolean allowsPassByReference() { + // RMI always pass by value + return true; + } + +} diff --git a/sandbox/sebastien/java/sca-node/modules/binding-rmi/src/main/java/org/apache/tuscany/sca/binding/rmi/RMIReferenceInvokerFactory.java b/sandbox/sebastien/java/sca-node/modules/binding-rmi/src/main/java/org/apache/tuscany/sca/binding/rmi/RMIReferenceInvokerFactory.java new file mode 100644 index 0000000000..c67bd910ba --- /dev/null +++ b/sandbox/sebastien/java/sca-node/modules/binding-rmi/src/main/java/org/apache/tuscany/sca/binding/rmi/RMIReferenceInvokerFactory.java @@ -0,0 +1,65 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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 org.apache.tuscany.sca.binding.rmi; + +import java.lang.reflect.Method; + +import org.apache.tuscany.sca.extension.helper.InvokerFactory; +import org.apache.tuscany.sca.host.rmi.RMIHost; +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.interfacedef.java.JavaInterface; +import org.apache.tuscany.sca.interfacedef.java.impl.JavaInterfaceUtil; +import org.apache.tuscany.sca.invocation.Invoker; +import org.apache.tuscany.sca.runtime.RuntimeComponent; +import org.apache.tuscany.sca.runtime.RuntimeComponentReference; +import org.osoa.sca.ServiceRuntimeException; + +/** + * InvokerFactory that creates RMIReferenceInvoker instances for the + * RMIBinding. + * + * @version $Rev$ $Date$ + */ +public class RMIReferenceInvokerFactory implements InvokerFactory { + + RuntimeComponentReference reference; + RMIHost rmiHost; + RMIBinding binding; + + public RMIReferenceInvokerFactory(RuntimeComponent rc, RuntimeComponentReference rcr, RMIBinding binding, RMIHost rmiHost) { + this.reference = rcr; + this.rmiHost = rmiHost; + this.binding = binding; + } + + public Invoker createInvoker(Operation operation) { + try { + + Class<?> iface = ((JavaInterface)reference.getInterfaceContract().getInterface()).getJavaClass(); + Method remoteMethod = JavaInterfaceUtil.findMethod(iface, operation); + + return new RMIReferenceInvoker(rmiHost, binding.getHost(), binding.getPort(), binding.getServiceName(), remoteMethod); + + } catch (NoSuchMethodException e) { + throw new ServiceRuntimeException(operation.toString(), e); + } + } + +} diff --git a/sandbox/sebastien/java/sca-node/modules/binding-rmi/src/main/java/org/apache/tuscany/sca/binding/rmi/RMIService.java b/sandbox/sebastien/java/sca-node/modules/binding-rmi/src/main/java/org/apache/tuscany/sca/binding/rmi/RMIService.java new file mode 100644 index 0000000000..479ee7c8b2 --- /dev/null +++ b/sandbox/sebastien/java/sca-node/modules/binding-rmi/src/main/java/org/apache/tuscany/sca/binding/rmi/RMIService.java @@ -0,0 +1,172 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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 org.apache.tuscany.sca.binding.rmi; + +import java.lang.reflect.InvocationTargetException; +import java.lang.reflect.Method; +import java.rmi.Remote; +import java.rmi.server.UnicastRemoteObject; + +import net.sf.cglib.asm.ClassWriter; +import net.sf.cglib.asm.Constants; +import net.sf.cglib.asm.Type; +import net.sf.cglib.proxy.Enhancer; +import net.sf.cglib.proxy.MethodInterceptor; +import net.sf.cglib.proxy.MethodProxy; + +import org.apache.tuscany.sca.extension.helper.ComponentLifecycle; +import org.apache.tuscany.sca.host.rmi.RMIHost; +import org.apache.tuscany.sca.host.rmi.RMIHostException; +import org.apache.tuscany.sca.interfacedef.Interface; +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.interfacedef.java.JavaInterface; +import org.apache.tuscany.sca.interfacedef.java.impl.JavaInterfaceUtil; +import org.apache.tuscany.sca.runtime.RuntimeComponent; +import org.apache.tuscany.sca.runtime.RuntimeComponentService; +import org.apache.tuscany.sca.runtime.RuntimeWire; +import org.osoa.sca.ServiceRuntimeException; + +/** + * Implementation of a Service for the RMIBinding. + * + * @version $Rev$ $Date$ + */ +public class RMIService implements ComponentLifecycle { + + private RuntimeComponent component; + private RuntimeComponentService service; + private RMIBinding binding; + private RMIHost rmiHost; + private RuntimeWire wire; + + public RMIService(RuntimeComponent rc, RuntimeComponentService rcs, RMIBinding binding, RMIHost rmiHost) { + this.component = rc; + this.service = rcs; + this.binding = binding; + this.rmiHost = rmiHost; + } + + public void start() { + // URI uri = URI.create(component.getURI() + "/" + binding.getName()); + // binding.setURI(uri.toString()); + + wire = service.getRuntimeWire(binding); + Interface serviceInterface = service.getInterfaceContract().getInterface(); + + Remote rmiProxy = createRmiService(serviceInterface); + + try { + + rmiHost.registerService(binding.getServiceName(), getPort(binding.getPort()), rmiProxy); + + } catch (RMIHostException e) { + throw new ServiceRuntimeException(e); + } + } + + public void stop() { + } + + protected int getPort(String port) { + int portNumber = RMIHost.RMI_DEFAULT_PORT; + if (port != null && port.length() > 0) { + portNumber = Integer.decode(port); + } + return portNumber; + } + + protected Remote createRmiService(final Interface serviceInterface) { + Enhancer enhancer = new Enhancer(); + enhancer.setSuperclass(UnicastRemoteObject.class); + enhancer.setCallback(new MethodInterceptor() { + public Object intercept(Object arg0, Method method, Object[] args, MethodProxy arg3) throws Throwable { + return invokeTarget(JavaInterfaceUtil.findOperation(method, serviceInterface.getOperations()), args); + } + }); + Class targetJavaInterface = getTargetJavaClass(serviceInterface); + if (!Remote.class.isAssignableFrom(targetJavaInterface)) { + RMIServiceClassLoader classloader = new RMIServiceClassLoader(getClass().getClassLoader()); + final byte[] byteCode = generateRemoteInterface(targetJavaInterface); + targetJavaInterface = classloader.defineClass(byteCode); + enhancer.setClassLoader(classloader); + } + enhancer.setInterfaces(new Class[] {targetJavaInterface}); + return (Remote)enhancer.create(); + } + + protected Object invokeTarget(Operation op, Object[] args) throws InvocationTargetException { + return wire.invoke(op, args); + } + + /** + * if the interface of the component whose serviceBindings must be exposed as RMI Service, does not + * implement java.rmi.Remote, then generate such an interface. This method will stop with just + * generating the bytecode. Defining the class from the byte code must be the responsibility of the + * caller of this method, since it requires a ClassLoader to be created to define and load this interface. + */ + protected byte[] generateRemoteInterface(Class serviceInterface) { + String interfazeName = serviceInterface.getCanonicalName(); + ClassWriter cw = new ClassWriter(false); + + String simpleName = serviceInterface.getSimpleName(); + cw.visit(Constants.V1_5, Constants.ACC_PUBLIC + Constants.ACC_ABSTRACT + Constants.ACC_INTERFACE, interfazeName + .replace('.', '/'), "java/lang/Object", new String[] {"java/rmi/Remote"}, simpleName + ".java"); + + StringBuffer argsAndReturn = null; + Method[] methods = serviceInterface.getMethods(); + for (Method method : methods) { + argsAndReturn = new StringBuffer("("); + Class[] paramTypes = method.getParameterTypes(); + Class returnType = method.getReturnType(); + + for (Class paramType : paramTypes) { + argsAndReturn.append(Type.getType(paramType)); + } + argsAndReturn.append(")"); + argsAndReturn.append(Type.getType(returnType)); + + cw.visitMethod(Constants.ACC_PUBLIC + Constants.ACC_ABSTRACT, + method.getName(), + argsAndReturn.toString(), + new String[] {"java/rmi/RemoteException"}, + null); + } + cw.visitEnd(); + return cw.toByteArray(); + } + + protected Class<?> getTargetJavaClass(Interface targetInterface) { + // TODO: right now assume that the target is always a Java + // Implementation. Need to figure out + // how to generate Java Interface in cases where the target is not a + // Java Implementation + return ((JavaInterface)targetInterface).getJavaClass(); + } + + protected class RMIServiceClassLoader extends ClassLoader { + public RMIServiceClassLoader(ClassLoader parent) { + super(parent); + } + + public Class defineClass(byte[] byteArray) { + return defineClass(null, byteArray, 0, byteArray.length); + } + } +} |