usingSystem;usingSystem.Reflection;usingSystem.Reflection.Emit;usingJointCode.Common.Extensions;usingJointCode.Expressions;usingJointCode.ServiceInjector;usingJointCode.Shuttle;usingJointCode.Shuttle.Services;namespaceJoitCode.Shuttle.SimpleSample{publicstaticclassShuttleDomainHelper{publicstaticShuttleDomainCreate(stringassemblySymbol,stringassemblyName){returnCreate(assemblySymbol,assemblyName,null);}publicstaticShuttleDomainCreate(stringassemblySymbol,stringassemblyName,ServiceContainersvContainer){vardynAsmOptions=newDynamicAssemblyOptions{AccessMode=AssemblyBuilderAccess.Run,AssemblyName=newAssemblyName(assemblyName)};varoptions=newShuttleDomainOptions{DynamicAssemblySymbol=assemblySymbol,DynamicAssemblyOptions=dynAsmOptions,DefaultLeaseTime=10.Seconds(),PollingInterval=5.Seconds()};try{returnShuttleDomain.Create(refoptions,svContainer);}catch(Exceptione){if(e.InnerException!=null)Console.WriteLine(e.InnerException.Message);elseConsole.WriteLine(e.Message);returnnull;}}}[ServiceInterface]publicinterfaceISimpleService{stringGetOutput(stringinput);}[ServiceClass(typeof(ISimpleService),Lifetime=LifetimeEnum.Transient)]publicclassSimpleService:ISimpleService{publicstringGetOutput(stringinput){returnstring.Format("SimpleService.GetOutput says: now, we are running in AppDomain:{0}, and the input passed from the caller is:{1}",AppDomain.CurrentDomain.FriendlyName,input);}}publicclassServiceEnd:MarshalByRefObject{// 这里必须使用一个字段来持有 ShuttleDomain 实例的引用，因为它是当前 AppDomain 与外部 AppDomain 之间通信的桥梁。// 如果该实例被垃圾回收，通过该实例注册的所有服务会被注销，且当前 AppDomain 与外部 AppDomain 之间将无法通信。// We need a field to keep the _shuttleDomain alive, because if it is garbage collected, we'll lose all communications// with other AppDomains.ShuttleDomain_shuttleDomain;publicvoidRegisterServices(){// 注册服务组时，需要传递一个 Guid 对象// A Guid is needed when registering service groupvarguid=Guid.NewGuid();_shuttleDomain.RegisterServiceGroup(refguid,newServiceTypePair(typeof(ISimpleService),typeof(SimpleService)));}publicvoidCreateShuttleDomain(){// 创建一个 ShuttleDomain// Create a ShuttleDomain object_shuttleDomain=ShuttleDomainHelper.Create("domain1","domain1");}publicvoidDisposeShuttleDomain(){_shuttleDomain.Dispose();}}classProgram{conststringSimpleServiceEndDll="JoitCode.Shuttle.SimpleServiceEnd.dll";conststringSimpleRemoteServiceEndType="JoitCode.Shuttle.SimpleServiceEnd.SimpleRemoteServiceEnd2";staticvoidMain(string[]args){Console.WriteLine("Tests begin...");// 要使用 JointCode.Shuttle 进行跨 AppDomain 通信，首先必须初始化 ShuttleDomain。// 这个初始化操作一般在默认 AppDomain 执行，但也可以在其他 AppDomain 中执行，都是一样的。// To make cross-AppDomain communication with JointCode.Shuttle, initialize the ShuttleDomain at first.// It doesn't matter whether the initialization is done in default AppDomain or any other AppDomains, // but it must be done before any ShuttleDomain instance is created.ShuttleDomain.Initialize();// 在默认 AppDomain 中，创建一个 ShuttleDomain。// 事实上，在需要与其他 AppDomain 进行通信的每个 AppDomain 中，都要有一个且只能有一个 ShuttleDomain 对象。// 尝试在一个 AppDomain 中创建多个 ShuttleDomain 对象时将会抛出异常。// 该对象用于与其他 AppDomain 中的 ShuttleDomain 对象通信。// Creating a ShuttleDomain instance in default AppDomain.// Actually, we needs one and only one ShuttleDomain instance in every AppDomain that needs to communicate // with others. Trying to create another ShuttleDomain in the same AppDomain causes exceptions.// The ShuttleDomain instances communicates with each other across AppDomains.varstr=Guid.NewGuid().ToString();varshuttleDomain=ShuttleDomainHelper.Create(str,str);if(CallServicesDefineInThisAssembly(shuttleDomain)&&CallServicesDefinedInAnotherAssembly(shuttleDomain)){Console.WriteLine("Tests completed...");}else{Console.WriteLine("Tests failed...");}shuttleDomain.Dispose();Console.Read();}staticboolCallServicesDefineInThisAssembly(ShuttleDomainshuttleDomain){Console.WriteLine();Console.WriteLine("=====================================");// 在默认 AppDomain 中创建一个子 AppDomain。// Creating a child AppDomain in default AppDomain.varserviceEnd1Domain=AppDomain.CreateDomain("ServiceEndDomain1",null,null);// 创建一个 ServiceEnd 对象以用于操作该子 AppDomain。// Creating a ServiceEnd instance for operating that child AppDomain.varserviceEnd=(ServiceEnd)serviceEnd1Domain.CreateInstanceAndUnwrap(typeof(Program).Assembly.FullName,"JoitCode.Shuttle.SimpleSample.ServiceEnd");// 在子 AppDomain 中，创建一个 ShuttleDomain 实例。// Creating a ShuttleDomain instance in the child AppDomain.serviceEnd.CreateShuttleDomain();// 在子 AppDomain 中，注册 ISimpleService 服务。// Registering ISimpleService service in the child AppDomain.serviceEnd.RegisterServices();// 在默认 AppDomain 中，获取子 AppDomain 中注册的 ISimpleService 服务实例。// 目前服务实例的默认生存期为 1 分钟。每次调用服务方法时，服务实例的生存期延长 30 秒。// Get the ISimpleService service in default AppDomain, which is registered by the child AppDomain.// The lifetime of service is default to 1 minute, every call to the service method extends that time for 30 seconds.ISimpleServiceservice;if(shuttleDomain.TryGetService(outservice)){try{Console.WriteLine("Currently, we are running in AppDomain{0}, "+"and we are trying to call a remote serivce that defined in the same library...",AppDomain.CurrentDomain.FriendlyName);Console.WriteLine();// 调用子 AppDomain 中注册的 ISimpleService 服务实例的服务方法。// Call the service method of ISimpleService service.varoutput=service.GetOutput("Bingo");Console.WriteLine(output);Console.WriteLine();}catch{Console.WriteLine();Console.WriteLine("Failed to invoke the remote service method...");returnfalse;}}else{Console.WriteLine();Console.WriteLine("Failed to create remote service instance...");returnfalse;}// 通知子 AppDomain 立即释放 ISimpleService 服务实例，而不用等待其生存期结束。// 此为可选操作，因为即使不手动释放 ISimpleService 服务实例，在其生命期结束之时系统也会自动释放该实例//（如果 ISimpleService 实现了 IDisposable，还会调用其 Dispose 方法）// Indicating the child AppDomain to release the ISimpleService service immediately, instead of waiting for its lifetime to end.// This is optional, because even if we don't do this explicitly, the ISimpleService service will still get released in the // child AppDomain automatically when its lifetime ends.// And, if the ISimpleService derives from IDisposable, the Dispose method will also get called at that time.shuttleDomain.ReleaseService(service);// 在子 AppDomain 中，释放缓存的 ShuttleDomain 实例。这将会注销通过该实例注册的所有服务（在本示例中，即 ISimpleService 服务），// 并切断该 AppDomain 与所有 AppDomain 的通信。// Releasing the ShuttleDomain instance in the child AppDomain, this will unregister all services registered by that // instance, and shut down all communications between that child AppDomain and all other AppDomains.serviceEnd.DisposeShuttleDomain();returntrue;}staticboolCallServicesDefinedInAnotherAssembly(ShuttleDomainshuttleDomain){Console.WriteLine();Console.WriteLine("=====================================");varremoteDomain=AppDomain.CreateDomain(Guid.NewGuid().ToString(),null,null);varcurrentDir=Path.GetDirectoryName(Assembly.GetEntryAssembly().Location);varsimpleServiceEndPath=Path.Combine(currentDir,SimpleServiceEndDll);varasmName=AssemblyName.GetAssemblyName(simpleServiceEndPath);varsimpleRemoteServiceEnd=(SimpleRemoteServiceEnd)remoteDomain.CreateInstanceAndUnwrap(asmName.FullName,SimpleRemoteServiceEndType);simpleRemoteServiceEnd.CreateShuttleDomain();simpleRemoteServiceEnd.RegisterServices();ISimpleService2service2;if(shuttleDomain.TryGetService(outservice2)){try{Console.WriteLine("Trying to call a remote serivce that defined in another library from AppDomain{0}...",AppDomain.CurrentDomain.FriendlyName);Console.WriteLine();// 调用子 AppDomain 中注册的 ISimpleService2 服务实例的服务方法。// Call the service method of ISimpleService2 service.varoutput=service2.GetOutput("Duang");Console.WriteLine(output);Console.WriteLine();}catch{Console.WriteLine();Console.WriteLine("Failed to invoke the remote service method...");returnfalse;}}else{Console.WriteLine();Console.WriteLine("Failed to create remote service instance...");returnfalse;}simpleRemoteServiceEnd.DisposeShuttleDomain();returntrue;}}