using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
+using System.Linq;
using System.ServiceModel.Channels;
using System.ServiceModel.Configuration;
using System.ServiceModel.Description;
public abstract partial class ServiceHostBase
: CommunicationObject, IExtensibleObject<ServiceHostBase>, IDisposable
{
+ // It is used for mapping a ServiceHostBase to HttpChannelListener precisely.
+ internal static ServiceHostBase CurrentServiceHostHack;
+
ServiceCredentials credentials;
ServiceDescription description;
UriSchemeKeyedCollection base_addresses;
}
}
- internal Uri CreateUri (string sheme, Uri relatieUri) {
- Uri baseUri = base_addresses.Contains (sheme) ? base_addresses [sheme] : null;
+ internal Uri CreateUri (string scheme, Uri relativeUri)
+ {
+ Uri baseUri = base_addresses.Contains (scheme) ? base_addresses [scheme] : null;
- if (relatieUri == null)
+ if (relativeUri == null)
return baseUri;
- if (relatieUri.IsAbsoluteUri)
- return relatieUri;
+ if (relativeUri.IsAbsoluteUri)
+ return relativeUri;
if (baseUri == null)
return null;
- return new Uri (baseUri, relatieUri);
+ var s = relativeUri.ToString ();
+ if (s.Length == 0)
+ return baseUri;
+ var l = baseUri.LocalPath;
+ var r = relativeUri.ToString ();
+
+ if (l.Length > 0 && l [l.Length - 1] != '/' && r [0] != '/')
+ return new Uri (String.Concat (baseUri.ToString (), "/", r));
+ else
+ return new Uri (String.Concat (baseUri.ToString (), r));
}
public ChannelDispatcherCollection ChannelDispatchers {
protected void AddBaseAddress (Uri baseAddress)
{
- if (Description != null)
+ if (base_addresses == null)
throw new InvalidOperationException ("Base addresses must be added before the service description is initialized");
base_addresses.Add (baseAddress);
}
Uri address, Uri listenUri)
{
EndpointAddress ea = BuildEndpointAddress (address, binding);
- ContractDescription cd = GetContract (implementedContract);
+ ContractDescription cd = GetContract (implementedContract, binding.Namespace == "http://schemas.microsoft.com/ws/2005/02/mex/bindings");
if (cd == null)
throw new InvalidOperationException (String.Format ("Contract '{0}' was not found in the implemented contracts in this service host.", implementedContract));
return AddServiceEndpointCore (cd, binding, ea, listenUri);
return null;
}
- ContractDescription GetContract (string name)
- {
- //FIXME: hack hack hack
- ImplementedContracts ["IHttpGetHelpPageAndMetadataContract"] =
- ContractDescription.GetContract (typeof (IHttpGetHelpPageAndMetadataContract));
-
- // FIXME: As long as I tried, *only* IMetadataExchange
- // is the exception case that does not require full
- // type name. Hence I treat it as a special case.
- if (name == ServiceMetadataBehavior.MexContractName) {
- if (!Description.Behaviors.Contains (typeof (ServiceMetadataBehavior)) && Array.IndexOf (Description.ServiceType.GetInterfaces (), typeof (IMetadataExchange)) < 0)
- throw new InvalidOperationException (
- "Add ServiceMetadataBehavior to the ServiceHost to add a endpoint for IMetadataExchange contract.");
-
- ImplementedContracts [ServiceMetadataBehavior.MexContractName] =
- ContractDescription.GetContract (typeof (IMetadataExchange));
-
- foreach (ContractDescription cd in ImplementedContracts.Values)
- if (cd.ContractType == typeof (IMetadataExchange))
- return cd;
- return null;
+ ContractDescription mex_contract, help_page_contract;
+
+ ContractDescription GetContract (string name, bool mexBinding)
+ {
+ // FIXME: not sure if they should really be special cases.
+ switch (name) {
+ case "IHttpGetHelpPageAndMetadataContract":
+ if (help_page_contract == null)
+ help_page_contract = ContractDescription.GetContract (typeof (IHttpGetHelpPageAndMetadataContract));
+ return help_page_contract;
+ case "IMetadataExchange":
+ // this is certainly looking special (or we may
+ // be missing something around ServiceMetadataExtension).
+ // It seems .NET WCF has some "infrastructure"
+ // endpoints. .NET ServiceHost fails to Open()
+ // if it was added only IMetadataExchange
+ // endpoint (and you'll see the word
+ // "infrastructure" in the exception message).
+ if (mexBinding && Description.Behaviors.Find<ServiceMetadataBehavior> () == null)
+ break;
+ if (mex_contract == null)
+ mex_contract = ContractDescription.GetContract (typeof (IMetadataExchange));
+ return mex_contract;
}
Type type = PopulateType (name);
+ if (type == null)
+ return null;
foreach (ContractDescription cd in ImplementedContracts.Values) {
- // FIXME: This check is a negative side effect
- // of the above hack.
+ // This check is a negative side effect of the above match-by-name design.
if (cd.ContractType == typeof (IMetadataExchange))
continue;
- if (type == null) {
- if (cd.Name == name)
- return cd;
- continue;
- }
-
if (cd.ContractType == type ||
cd.ContractType.IsSubclassOf (type) ||
type.IsInterface && cd.ContractType.GetInterface (type.FullName) == type)
ContractDescription cd, Binding binding, EndpointAddress address, Uri listenUri)
{
foreach (ServiceEndpoint e in Description.Endpoints)
- if (e.Contract == cd)
+ if (e.Contract == cd && e.Binding == binding && e.Address == address && e.ListenUri.Equals (listenUri))
return e;
ServiceEndpoint se = new ServiceEndpoint (cd, binding, address);
se.ListenUri = listenUri.IsAbsoluteUri ? listenUri : new Uri (address.Uri, listenUri);
return se;
}
- [MonoTODO]
protected virtual void ApplyConfiguration ()
{
if (Description == null)
AddBaseAddress (new Uri (baseAddress.BaseAddress));
}
+ // behaviors
+ // TODO: use EvaluationContext of ServiceElement.
+ ServiceBehaviorElement behavior = ConfigUtil.BehaviorsSection.ServiceBehaviors [service.BehaviorConfiguration];
+ if (behavior != null) {
+ foreach (var bxe in behavior) {
+ IServiceBehavior b = (IServiceBehavior) bxe.CreateBehavior ();
+ Description.Behaviors.Add (b);
+ }
+ }
+
// services
foreach (ServiceEndpointElement endpoint in service.Endpoints) {
- // FIXME: consider BindingName as well
ServiceEndpoint se = AddServiceEndpoint (
endpoint.Contract,
ConfigUtil.CreateBinding (endpoint.Binding, endpoint.BindingConfiguration),
endpoint.Address.ToString ());
- }
- // behaviors
- // TODO: use EvaluationContext of ServiceElement.
- ServiceBehaviorElement behavior = ConfigUtil.BehaviorsSection.ServiceBehaviors.Find (service.BehaviorConfiguration);
- if (behavior != null) {
- for (int i = 0; i < behavior.Count; i++) {
- BehaviorExtensionElement bxel = behavior [i];
- IServiceBehavior b = (IServiceBehavior) behavior [i].CreateBehavior ();
- if (b != null)
- Description.Behaviors.Add (b);
+ // endpoint behaviors
+ EndpointBehaviorElement epbehavior = ConfigUtil.BehaviorsSection.EndpointBehaviors [endpoint.BehaviorConfiguration];
+ if (epbehavior != null)
+ foreach (var bxe in epbehavior) {
+ IEndpointBehavior b = (IEndpointBehavior) bxe.CreateBehavior ();
+ se.Behaviors.Add (b);
}
}
}
return ConfigUtil.ServicesSection.Services [serviceType.FullName];
}
- internal ContractDescription GetContract (string name, string ns)
- {
- foreach (ContractDescription d in ImplementedContracts.Values)
- if (d.Name == name && d.Namespace == ns)
- return d;
- return null;
- }
-
protected abstract ServiceDescription CreateDescription (
out IDictionary<string,ContractDescription> implementedContracts);
//Build all ChannelDispatchers, one dispatcher per user configured EndPoint.
//We must keep thet ServiceEndpoints as a seperate collection, since the user
//can change the collection in the description during the behaviors events.
- Dictionary<ServiceEndpoint, ChannelDispatcher> endPointToDispatcher = new Dictionary<ServiceEndpoint,ChannelDispatcher>();
ServiceEndpoint[] endPoints = new ServiceEndpoint[Description.Endpoints.Count];
Description.Endpoints.CopyTo (endPoints, 0);
+ var builder = new DispatcherBuilder (this);
foreach (ServiceEndpoint se in endPoints) {
var commonParams = new BindingParameterCollection ();
foreach (IServiceBehavior b in Description.Behaviors)
b.AddBindingParameters (Description, this, Description.Endpoints, commonParams);
- ChannelDispatcher channel = BuildChannelDispatcher (se, commonParams);
- ChannelDispatchers.Add (channel);
- endPointToDispatcher[se] = channel;
+ var channel = builder.BuildChannelDispatcher (Description.ServiceType, se, commonParams);
+ if (!ChannelDispatchers.Contains (channel))
+ ChannelDispatchers.Add (channel);
}
//After the ChannelDispatchers are created, and attached to the service host
foreach (IServiceBehavior b in Description.Behaviors)
b.ApplyDispatchBehavior (Description, this);
- foreach(KeyValuePair<ServiceEndpoint, ChannelDispatcher> val in endPointToDispatcher)
- foreach (var ed in val.Value.Endpoints)
- ApplyDispatchBehavior (ed, val.Key);
+ builder.ApplyDispatchBehaviors ();
}
private void ValidateDescription ()
b.Validate (Description, this);
foreach (ServiceEndpoint endPoint in Description.Endpoints)
endPoint.Validate ();
- }
-
- private void ApplyDispatchBehavior (EndpointDispatcher ed, ServiceEndpoint endPoint)
- {
- foreach (IContractBehavior b in endPoint.Contract.Behaviors)
- b.ApplyDispatchBehavior (endPoint.Contract, endPoint, ed.DispatchRuntime);
- foreach (IEndpointBehavior b in endPoint.Behaviors)
- b.ApplyDispatchBehavior (endPoint, ed);
- foreach (OperationDescription operation in endPoint.Contract.Operations) {
- foreach (IOperationBehavior b in operation.Behaviors)
- b.ApplyDispatchBehavior (operation, ed.DispatchRuntime.Operations [operation.Name]);
- }
- }
-
- internal ChannelDispatcher BuildChannelDispatcher (ServiceEndpoint se, BindingParameterCollection commonParams)
- {
- return new DispatcherBuilder ().BuildChannelDispatcher (Description.ServiceType, se, commonParams);
+ if (Description.Endpoints.FirstOrDefault (e => e.Contract != mex_contract) == null)
+ throw new InvalidOperationException ("The ServiceHost must have at least one application endpoint (that does not include metadata exchange contract) defined by either configuration, behaviors or call to AddServiceEndpoint methods.");
}
[MonoTODO]
ServicesSection services = ConfigUtil.ServicesSection;
}
- void DoOpen (TimeSpan timeout)
- {
- foreach (var cd in ChannelDispatchers) {
- cd.Open (timeout);
- // This is likely hack.
- if (cd is ChannelDispatcher)
- ((ChannelDispatcher) cd).StartLoop ();
- }
- }
-
[MonoTODO]
protected override sealed void OnAbort ()
{
protected override sealed void OnOpen (TimeSpan timeout)
{
+ DateTime start = DateTime.Now;
InitializeRuntime ();
- DoOpen (timeout);
+ foreach (var cd in ChannelDispatchers)
+ cd.Open (timeout - (DateTime.Now - start));
+
+ // FIXME: remove this hack. It should make sure that each ChannelDispatcher's loop has started, using WaitHandle.WaitAll() or something similar.
+ System.Threading.Thread.Sleep (300);
}
protected override void OnEndClose (IAsyncResult result)
protected override void OnOpened ()
{
+ base.OnOpened ();
}
[MonoTODO]
*/
}
+ /// <summary>
+ /// Builds ChannelDispatchers as appropriate to service the service endpoints.
+ /// </summary>
+ /// <remarks>Will re-use ChannelDispatchers when two endpoint uris are the same</remarks>
partial class DispatcherBuilder
{
+ ServiceHostBase host;
+
+ public DispatcherBuilder (ServiceHostBase host)
+ {
+ this.host = host;
+ }
+
+ List<ChannelDispatcher> built_dispatchers = new List<ChannelDispatcher> ();
+ Dictionary<ServiceEndpoint, EndpointDispatcher> ep_to_dispatcher_ep = new Dictionary<ServiceEndpoint, EndpointDispatcher> ();
+
+ internal static Action<ChannelDispatcher> ChannelDispatcherSetter;
+
internal ChannelDispatcher BuildChannelDispatcher (Type serviceType, ServiceEndpoint se, BindingParameterCollection commonParams)
{
//Let all behaviors add their binding parameters
AddBindingParameters (commonParams, se);
- //User the binding parameters to build the channel listener and Dispatcher
- IChannelListener lf = BuildListener (se, commonParams);
- ChannelDispatcher cd = new ChannelDispatcher (
- lf, se.Binding.Name);
- cd.InitializeServiceEndpoint (serviceType, se);
+
+ // See if there's an existing channel that matches this endpoint
+ ChannelDispatcher cd = FindExistingDispatcher (se);
+ EndpointDispatcher ep;
+ if (cd != null) {
+ ep = cd.InitializeServiceEndpoint (serviceType, se);
+ } else {
+ // Use the binding parameters to build the channel listener and Dispatcher.
+ lock (HttpTransportBindingElement.ListenerBuildLock) {
+ ServiceHostBase.CurrentServiceHostHack = host;
+ IChannelListener lf = BuildListener (se, commonParams);
+ cd = new ChannelDispatcher (lf, se.Binding.Name);
+ if (ChannelDispatcherSetter != null) {
+ ChannelDispatcherSetter (cd);
+ ChannelDispatcherSetter = null;
+ }
+ ServiceHostBase.CurrentServiceHostHack = null;
+ }
+ ep = cd.InitializeServiceEndpoint (serviceType, se);
+ built_dispatchers.Add (cd);
+ }
+ ep_to_dispatcher_ep[se] = ep;
return cd;
}
+
+ ChannelDispatcher FindExistingDispatcher (ServiceEndpoint se)
+ {
+ return built_dispatchers.FirstOrDefault ((ChannelDispatcher cd) => (cd.Listener.Uri.Equals (se.ListenUri)) && cd.MessageVersion.Equals (se.Binding.MessageVersion));
+ }
+
+ internal void ApplyDispatchBehaviors ()
+ {
+ foreach (KeyValuePair<ServiceEndpoint, EndpointDispatcher> val in ep_to_dispatcher_ep)
+ ApplyDispatchBehavior (val.Value, val.Key);
+ }
+
+ private void ApplyDispatchBehavior (EndpointDispatcher ed, ServiceEndpoint endPoint)
+ {
+ foreach (IContractBehavior b in endPoint.Contract.Behaviors)
+ b.ApplyDispatchBehavior (endPoint.Contract, endPoint, ed.DispatchRuntime);
+ foreach (IEndpointBehavior b in endPoint.Behaviors)
+ b.ApplyDispatchBehavior (endPoint, ed);
+ foreach (OperationDescription operation in endPoint.Contract.Operations) {
+ foreach (IOperationBehavior b in operation.Behaviors)
+ b.ApplyDispatchBehavior (operation, ed.DispatchRuntime.Operations [operation.Name]);
+ }
+
+ }
private void AddBindingParameters (BindingParameterCollection commonParams, ServiceEndpoint endPoint) {
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