/// <summary>
/// Lookups the service references.
/// </summary>
/// <param name="context">The context.</param>
/// <returns>IServiceReference[].</returns>
/// Performs a lookup for ServiceReferences that are bound to this
/// ServiceRegistry using the specified BundleContext.
/// @param context The BundleContext to lookup the ServiceReferences on.
/// @return An array of all matching ServiceReferences or null if none
/// exist.
public IServiceReference[] LookupServiceReferences(IBundleContext context)
{
int size;
List <IServiceReference> references;
List <IServiceRegistration> serviceRegs = (List <IServiceRegistration>)PublishedServicesByContext[context];
if (serviceRegs == null)
{
return(null);
}
size = serviceRegs.Count;
if (size == 0)
{
return(null);
}
references = new List <IServiceReference>();
for (int i = 0; i < size; i++)
{
IServiceRegistration registration = (IServiceRegistration)serviceRegs[i];
IServiceReference reference = registration.GetReference();
references.Add(reference);
}
if (references.Count == 0)
{
return(null);
}
return((IServiceReference[])references.ToArray());
}
/// <summary>
/// Lookups the service references.
/// </summary>
/// <param name="clazz">The clazz.</param>
/// <param name="filter">The filter.</param>
/// <returns>IServiceReference[].</returns>
/// Performs a lookup for ServiceReferences that are bound to this
/// ServiceRegistry. If both clazz and filter are null then all bound
/// ServiceReferences are returned.
/// @param clazz A fully qualified class name. All ServiceReferences that
/// reference an object that implement this class are returned. May be
/// null.
/// @param filter Used to match against published Services. All
/// ServiceReferences that match the filter are returned. If a clazz is
/// specified then all ServiceReferences that match the clazz and the
/// filter parameter are returned. May be null.
/// @return An array of all matching ServiceReferences or null
/// if none exist.
public IServiceReference[] LookupServiceReferences(string clazz, IFilter filter)
{
int size;
List <IServiceReference> references = null;
List <IServiceRegistration> serviceRegs = null;
if (clazz == null) /* all services */
{
serviceRegs = AllPublishedServices;
}
else
{
/* services registered under the class name */
if (PublishedServicesByClass.ContainsKey(clazz))
{
serviceRegs = (List <IServiceRegistration>)PublishedServicesByClass[clazz];
}
}
if (serviceRegs == null)
{
return(null);
}
size = serviceRegs.Count;
if (size == 0)
{
return(null);
}
references = new List <IServiceReference>();
for (int i = 0; i < size; i++)
{
IServiceRegistration registration = (IServiceRegistration)serviceRegs[i];
IServiceReference reference = registration.GetReference();
if ((filter == null) || filter.Match(reference))
{
references.Add(reference);
}
}
if (references.Count == 0)
{
return(null);
}
return((IServiceReference[])references.ToArray());
}
/// <summary>
/// 实现了多个服务接口的服务对象注册
/// </summary>
/// <param name="contracts">服务约束数组</param>
/// <param name="service">服务对象</param>
/// <param name="properties">服务属性，在查找服务时用于过滤服务</param>
/// <returns>服务注册信息</returns>
public IServiceRegistration RegisterService(string[] contracts, object service, IDictionary <string, object> properties = null)
{
IServiceRegistration sr = ((IFrameworkService)framework).RegisterService(this, contracts, service, properties);
serviceReferenceList.Add(sr.GetReference());
//触发服变更事件
foreach (var bundleObj in this.framework.GetBundles())
{
var fireContext = (IContextFireEvent)bundleObj.GetBundleContext();
fireContext.FireServiceChanged(this.bundle, new ServiceEventArgs(ServiceEventArgs.REGISTERED, contracts, sr.GetReference()));
}
return(sr);
}
