/// <summary>
/// PErform a HEAD operation
/// </summary>
public bool Exists <TModel>(Guid key)
{
try
{
if (m_knownUuids.Contains(key))
{
return(true); // Already tested
}
else if (m_knownUuids.Count > 1000)
{
m_knownUuids.Clear();
}
HdsiServiceClient client = this.GetServiceClient(); //new ImsiServiceClient(ApplicationContext.Current.GetRestClient("imsi"));
client.Client.Responding += (o, e) => this.Responding?.Invoke(o, e);
client.Client.Credentials = this.GetCredentials(client.Client);
if (client.Client.Credentials == null)
{
return(false);
}
this.m_tracer.TraceVerbose("Performing HDSI HEAD ({0}):{1}", typeof(TModel).FullName, key);
var retVal = client.Client.Head($"{typeof(TModel).Name}/{key}");
if (retVal.ContainsKey("ETag"))
{
m_knownUuids.Add(key);
}
return(retVal.ContainsKey("ETag"));
}
catch (Exception)
{
return(false);
}
}
/// <summary>
/// Determines whether the network is available.
/// </summary>
/// <returns>Returns true if the network is available.</returns>
public bool IsAvailable()
{
try
{
//var restClient = ApplicationContext.Current.GetRestClient("hdsi");
var networkInformationService = ApplicationContext.Current.GetService <INetworkInformationService>();
if (networkInformationService.IsNetworkAvailable)
{
if (this.m_lastPing < DateTime.Now.AddSeconds(-30))
{
HdsiServiceClient client = this.GetServiceClient(); //new HdsiServiceClient(restClient);
client.Client.Credentials = new NullCredentials();
client.Client.Description.Endpoint[0].Timeout = 5000;
this.m_lastPing = DateTime.Now;
return(this.IsValidVersion(client) &&
client.Ping());
}
return(true);
}
return(false);
}
catch (Exception e)
{
this.m_tracer.TraceInfo($"Unable to determine network state: {e}");
return(false);
}
}
/// <summary>
/// Throws an exception if the specified service client has the invalid version
/// </summary>
private bool IsValidVersion(HdsiServiceClient client)
{
var expectedVersion = typeof(IdentifiedData).GetTypeInfo().Assembly.GetName().Version;
if (this.m_options == null)
{
this.m_options = client.Options();
}
if (this.m_options == null)
{
return(false);
}
var version = new Version(this.m_options.InterfaceVersion);
// Major version must match & minor version must match. Example:
// Server Client Result
// 0.6.14.* 0.6.14.* Compatible
// 0.7.0.* 0.6.14.* Not compatible (server newer)
// 0.7.0.* 0.9.0.0 Compatible (client newer)
// 0.8.0.* 1.0.0.0 Not compatible (major version mis-match)
this.m_tracer.TraceVerbose("HDSI server indicates version {0}", this.m_options.InterfaceVersion);
return(version < expectedVersion);
}
/// <summary>
/// Gets a specified model.
/// </summary>
/// <typeparam name="TModel">The type of model data to retrieve.</typeparam>
/// <param name="key">The key of the model.</param>
/// <param name="versionKey">The version key of the model.</param>
/// <param name="options">The integrations query options.</param>
/// <returns>Returns a model.</returns>
public TModel Get <TModel>(Guid key, Guid?versionKey, IntegrationQueryOptions options = null) where TModel : IdentifiedData
{
try
{
HdsiServiceClient client = this.GetServiceClient(); //new HdsiServiceClient(ApplicationContext.Current.GetRestClient("hdsi"));
client.Client.Requesting += IntegrationQueryOptions.CreateRequestingHandler(options);
client.Client.Responding += (o, e) => this.Responding?.Invoke(o, e);
client.Client.Credentials = this.GetCredentials(client.Client);
if (client.Client.Credentials == null)
{
return(null);
}
this.m_tracer.TraceVerbose("Performing HDSI GET ({0}):{1}v{2}", typeof(TModel).FullName, key, versionKey);
var retVal = client.Get <TModel>(key, versionKey);
if (retVal is Bundle)
{
(retVal as Bundle)?.Reconstitute();
retVal = (retVal as Bundle).GetFocalObject();
}
var integrationEvent = new IntegrationResultEventArgs(null, retVal);
this.Responded?.Invoke(this, integrationEvent);
return(integrationEvent.ResponseData as TModel);
}
catch (TargetInvocationException e)
{
throw Activator.CreateInstance(e.InnerException.GetType(), "Error performing action", e) as Exception;
}
}
/// <summary>
/// Finds the specified model
/// </summary>
public Bundle Find <TModel>(Expression <Func <TModel, bool> > predicate, int offset, int?count, IntegrationQueryOptions options = null) where TModel : IdentifiedData
{
try
{
if (this.IsAvailable())
{
HdsiServiceClient client = this.GetServiceClient();
client.Client.Requesting += IntegrationQueryOptions.CreateRequestingHandler(options);
client.Client.Responding += (o, e) => this.Responding?.Invoke(o, e);
client.Client.Credentials = this.GetCredentials(client.Client);
if (client.Client.Credentials == null)
{
return(null);
}
if (options?.Timeout.HasValue == true)
{
client.Client.Description.Endpoint[0].Timeout = options.Timeout.Value;
}
this.m_tracer.TraceVerbose("Performing HDSI query ({0}):{1}", typeof(TModel).FullName, predicate);
var retVal = client.Query <TModel>(predicate, offset, count, queryId: options?.QueryId);
this.Responded?.Invoke(this, new IntegrationResultEventArgs(null, retVal));
//retVal?.Reconstitute();
return(retVal);
}
return(null);
}
catch (TargetInvocationException e)
{
throw Activator.CreateInstance(e.InnerException.GetType(), "Error performing action", e) as Exception;
}
}
/// <summary>
/// Obsoletes specified data.
/// </summary>
/// <param name="data">The data to be obsoleted.</param>
public void Obsolete(IdentifiedData data, bool unsafeObsolete = false)
{
try
{
if (!(data is Bundle || data is Entity || data is Act || data is EntityRelationship)) // || data is EntityRelationship))
{
return;
}
HdsiServiceClient client = this.GetServiceClient(); //new HdsiServiceClient(ApplicationContext.Current.GetRestClient("hdsi"));
client.Client.Credentials = this.GetCredentials(client.Client);
client.Client.Responding += (o, e) => this.Responding?.Invoke(o, e);
if (client.Client.Credentials == null)
{
return;
}
// Force an update
if (unsafeObsolete)
{
client.Client.Requesting += (o, e) => e.AdditionalHeaders["X-SanteDB-Unsafe"] = "true";
}
else
{
client.Client.Requesting += (o, e) => e.AdditionalHeaders["If-Match"] = data.Tag;
}
var method = typeof(HdsiServiceClient).GetRuntimeMethods().FirstOrDefault(o => o.Name == "Obsolete" && o.GetParameters().Length == 1);
method = method.MakeGenericMethod(data.GetType());
this.m_tracer.TraceVerbose("Performing HDSI OBSOLETE {0}", data);
var iver = method.Invoke(client, new object[] { data }) as IVersionedEntity;
if (iver != null)
{
this.UpdateToServerCopy(iver, data as IVersionedEntity);
}
// Indicate that the server has responded
this.Responded?.Invoke(this, new IntegrationResultEventArgs(data, iver as IdentifiedData));
}
catch (TargetInvocationException e)
{
throw Activator.CreateInstance(e.InnerException.GetType(), "Error performing action", e) as Exception;
}
}
/// <summary>
/// Get the difference between the server and this device's time
/// </summary>
public TimeSpan GetServerTimeDrift()
{
try
{
//var restClient = ApplicationContext.Current.GetRestClient("hdsi");
var networkInformationService = ApplicationContext.Current.GetService <INetworkInformationService>();
if (networkInformationService.IsNetworkAvailable)
{
HdsiServiceClient client = this.GetServiceClient(); //new HdsiServiceClient(restClient);
client.Client.Credentials = new NullCredentials();
client.Client.Description.Endpoint[0].Timeout = 20000;
var drift = TimeSpan.Zero;
client.Client.Responded += (o, e) =>
{
if (e.Headers != null)
{
if (e.Headers.ContainsKey("X-GeneratedOn"))
{
drift = DateTime.Parse(e.Headers["X-GeneratedOn"]).Subtract(DateTime.Now);
}
else if (DateTime.TryParse(e.Headers["Date"], out var serverTime))
{
drift = serverTime.Subtract(DateTime.Now);
}
}
};
client.Ping();
return(drift);
}
return(TimeSpan.Zero);
}
catch (Exception e)
{
this.m_tracer.TraceError($"Unable to determine server time drift: {e}");
return(TimeSpan.Zero);
}
}
/// <summary>
/// Get service client
/// </summary>
private HdsiServiceClient GetServiceClient()
{
var retVal = new HdsiServiceClient(ApplicationContext.Current.GetRestClient("hdsi"));
return(retVal);
}
/// <summary>
/// Updates specified data.
/// </summary>
/// <param name="data">The data to be updated.</param>
public void Update(IdentifiedData data, bool unsafeUpdate = false)
{
try
{
// HACK
if (!(data is Bundle || data is Entity || data is Act || data is Patch))
{
return;
}
if (data is Patch &&
!typeof(Entity).GetTypeInfo().IsAssignableFrom((data as Patch).AppliesTo.Type.GetTypeInfo()) &&
!typeof(Act).GetTypeInfo().IsAssignableFrom((data as Patch).AppliesTo.Type.GetTypeInfo()))
{
return;
}
HdsiServiceClient client = this.GetServiceClient(); //new HdsiServiceClient(ApplicationContext.Current.GetRestClient("hdsi"));
client.Client.Credentials = this.GetCredentials(client.Client);
client.Client.Responding += (o, e) => this.Responding?.Invoke(o, e);
if (client.Client.Credentials == null)
{
return;
}
// Force an update
if (unsafeUpdate)
{
client.Client.Requesting += (o, e) => e.AdditionalHeaders["X-Patch-Force"] = "true";
}
// Special case = Batch submit of data with an entry point
var submission = (data as Bundle)?.GetFocalObject() ?? data;
var existing = submission;
// Assign a uuid for this submission
if (data is Bundle && data.Key == null)
{
data.Key = Guid.NewGuid();
}
// TODO: In MDM mode on the server patching will def cause an issue as we don't process the location header sent back from the server
// we need to update the server to send back an appropriate location header and to fetch the local.
if (submission is Patch)
{
var patch = submission as Patch;
// Patch for update on times (obsolete, creation time, etc. always fail so lets remove them)
patch.Operation.RemoveAll(o => o.OperationType == PatchOperationType.Test && this.m_removePatchTest.Contains(o.Path));
this.m_tracer.TraceVerbose("Performing HDSI UPDATE (PATCH) {0}", patch);
var existingKey = patch.AppliesTo.Key;
// Get the object and then update
var idp = typeof(IDataPersistenceService <>).MakeGenericType(patch.AppliesTo.Type);
var idpService = ApplicationContext.Current.GetService(idp) as IDataPersistenceService;
existing = idpService.Get(existingKey.Value) as IdentifiedData;
var newUuid = Guid.Empty;
try
{
newUuid = client.Patch(patch);
}
catch (WebException e)
{
switch ((e.Response as HttpWebResponse).StatusCode)
{
case HttpStatusCode.Conflict: // Try to resolve the conflict in an automated way
this.m_tracer.TraceWarning("Will attempt to force PATCH {0}", patch);
// Condition 1: Can we apply the patch without causing any issues (ignoring version)
client.Client.Requesting += (o, evt) =>
{
evt.AdditionalHeaders["X-Patch-Force"] = "true";
};
// Configuration dictates only safe patch
if (ApplicationContext.Current.Configuration.GetSection <SynchronizationConfigurationSection>().SafePatchOnly)
{
// First, let's grab the item
var serverCopy = this.Get(patch.AppliesTo.Type, patch.AppliesTo.Key.Value, null);
if (ApplicationContext.Current.GetService <IPatchService>().Test(patch, serverCopy))
{
newUuid = client.Patch(patch);
}
else
{
// There are no intersections of properties between the object we have and the server copy
var serverDiff = ApplicationContext.Current.GetService <IPatchService>().Diff(existing, serverCopy);
if (!serverDiff.Operation.Any(sd => patch.Operation.Any(po => po.Path == sd.Path && sd.OperationType != PatchOperationType.Test)))
{
newUuid = client.Patch(patch);
}
else
{
throw;
}
}
}
else /// unsafe patch ... meh
{
newUuid = client.Patch(patch);
}
break;
case HttpStatusCode.NotFound: // We tried to update something that doesn't exist on the server? That's odd
this.m_tracer.TraceWarning("Server reported patch target doesn't exist! {0}", patch);
var svcType = typeof(IDataPersistenceService <>).MakeGenericType(patch.AppliesTo.Type);
var persistenceService = ApplicationContext.Current.GetService(svcType) as IDataPersistenceService;
var localObject = persistenceService.Get(patch.AppliesTo.Key.Value);
// Re-queue for create
// First, we have to remove the "replaces version" key as it doesn't make much sense
if (localObject is IVersionedEntity)
{
(localObject as IVersionedEntity).PreviousVersionKey = null;
}
this.Insert(Bundle.CreateBundle(localObject as IdentifiedData));
break;
}
}
// Update the local version key to the server version key
if (existing is IVersionedEntity iver)
{
this.m_tracer.TraceVerbose("Patch successful - VersionId of {0} to {1}", existing, newUuid);
iver.VersionKey = newUuid;
idpService.Update(existing);
}
}
else // regular update
{
// Force an update
if (!unsafeUpdate)
{
client.Client.Requesting += (o, e) => e.AdditionalHeaders["If-Match"] = data.Tag;
}
client.Client.Requesting += (o, e) => (e.Body as Bundle)?.Item.RemoveAll(i => !(i is Act || i is Patient || i is Provider || i is UserEntity)); // || i is EntityRelationship));
var method = typeof(HdsiServiceClient).GetRuntimeMethods().FirstOrDefault(o => o.Name == "Update" && o.GetParameters().Length == 1);
method = method.MakeGenericMethod(submission.GetType());
this.m_tracer.TraceVerbose("Performing HDSI UPDATE (FULL) {0}", data);
var iver = method.Invoke(client, new object[] { submission }) as IVersionedEntity;
if (iver != null)
{
this.UpdateToServerCopy(iver, submission as IVersionedEntity);
}
// Notify updated
this.Responded?.Invoke(this, new IntegrationResultEventArgs(existing, iver as IdentifiedData));
}
}
catch (TargetInvocationException e)
{
throw Activator.CreateInstance(e.InnerException.GetType(), "Error performing action", e) as Exception;
}
}
/// <summary>
/// Inserts specified data.
/// </summary>
/// <param name="data">The data to be inserted.</param>
public void Insert(IdentifiedData data)
{
try
{
if (!(data is Bundle || data is Entity || data is Act))
{
return;
}
if (data is Bundle)
{
data.Key = null;
}
HdsiServiceClient client = this.GetServiceClient(); //new HdsiServiceClient(ApplicationContext.Current.GetRestClient("hdsi"));
client.Client.Credentials = this.GetCredentials(client.Client);
client.Client.Responding += (o, e) => this.Responding?.Invoke(o, e);
if (client.Client.Credentials == null)
{
return;
}
// Special case = Batch submit of data with an entry point
var submission = (data as Bundle)?.GetFocalObject() ?? data;
client.Client.Requesting += (o, e) =>
{
var bund = e.Body as Bundle;
if (!(bund?.GetFocalObject() is UserEntity)) // not submitting a user entity so we only submit ACT
{
bund?.Item.RemoveAll(i => !(i is Act || i is Person && !(i is UserEntity))); // || i is EntityRelationship));
}
if (bund != null)
{
bund.Key = Guid.NewGuid();
e.Cancel = bund.Item.Count == 0;
}
};
// Create method
var method = typeof(HdsiServiceClient).GetRuntimeMethods().FirstOrDefault(o => o.Name == "Create" && o.GetParameters().Length == 1);
method = method.MakeGenericMethod(submission.GetType());
this.m_tracer.TraceVerbose("Performing HDSI INSERT {0}", submission);
var result = method.Invoke(client, new object[] { submission }) as IdentifiedData;
if (result is IVersionedEntity iver)
{
this.UpdateToServerCopy(iver, data as IVersionedEntity);
}
else if (result is Bundle bundle)
{
var submissionBundle = data as Bundle;
foreach (var itm in bundle.Item)
{
var original = submissionBundle.Item.FirstOrDefault(o => o.Key == itm.Key);
if (itm is IVersionedEntity itmVer && original is IVersionedEntity)
{
this.UpdateToServerCopy(itmVer, original as IVersionedEntity);
}
}
}
this.Responded?.Invoke(this, new IntegrationResultEventArgs(data, result));
}
catch (TargetInvocationException e)
{
throw Activator.CreateInstance(e.InnerException.GetType(), "Error performing action", e.InnerException) as Exception;
}
}