public static bool IsInitialized(this Oms oms)
{
if (oms.DefaultTenant == TenantHandle.Empty)
{
throw new InvalidOperationException("please specify a tenant");
}
if (oms.HasInstance(KnownInstanceGuids.Classes.Class) && oms.HasInstance(KnownInstanceGuids.Classes.Attribute) && oms.HasInstance(KnownInstanceGuids.Classes.Relationship))
{
return(true);
}
return(false);
}
public static string GetTranslationValue(this Oms oms, InstanceHandle sourceInstance, InstanceHandle relationshipInstance, InstanceHandle languageInstance, string defaultValue = null)
{
InstanceHandle keyTTC = oms.GetRelatedInstance(sourceInstance, relationshipInstance);
InstanceHandle[] keyTTCValues = oms.GetRelatedInstances(keyTTC, oms.GetInstance(KnownRelationshipGuids.Translatable_Text_Constant__has__Translatable_Text_Constant_Value));
for (int i = 0; i < keyTTCValues.Length; i++)
{
InstanceHandle ihLang = oms.GetRelatedInstance(keyTTCValues[i], oms.GetInstance(KnownRelationshipGuids.Translatable_Text_Constant_Value__has__Language));
if (ihLang == languageInstance)
{
return(oms.GetAttributeValue(keyTTCValues[i], oms.GetInstance(KnownAttributeGuids.Text.Value), defaultValue));
}
}
return(defaultValue);
}
public static string GetInstanceTitle(this Oms oms, InstanceHandle inst)
{
InstanceHandle ihParentClass = oms.GetRelatedInstance(inst, oms.GetInstance(KnownRelationshipGuids.Instance__for__Class));
if (ihParentClass.IsEmpty)
{
Console.WriteLine("[mocha warning]: GetInstanceTitle: parent class is empty for inst with UID {0}", oms.GetInstanceID(inst));
Console.WriteLine("---------------- (using relationship with UID {0}, valid? {1} )", KnownRelationshipGuids.Instance__for__Class, oms.GetInstance(KnownRelationshipGuids.Instance__for__Class));
}
InstanceHandle ihTitleString = oms.GetRelatedInstance(ihParentClass, oms.GetInstance(KnownRelationshipGuids.Class__instance_labeled_by__String));
InstanceHandle[] ihStringComponents = oms.GetRelatedInstances(ihTitleString, oms.GetInstance(KnownRelationshipGuids.String__has__String_Component));
string value = oms.GetStringValue(ihStringComponents, inst);
return(value);
}
public static InstanceHandle CreateTranslation(this Oms oms, InstanceHandle sourceInstance, InstanceHandle relationshipInstance, InstanceHandle languageInstance, string value)
{
InstanceHandle keyTTC = oms.GetRelatedInstance(sourceInstance, relationshipInstance);
if (keyTTC == InstanceHandle.Empty)
{
keyTTC = oms.CreateInstance(KnownInstanceGuids.Classes.Translation);
oms.CreateRelationship(sourceInstance, relationshipInstance, keyTTC);
}
InstanceHandle keyTTCValue = oms.CreateInstance(KnownInstanceGuids.Classes.TranslatableTextConstantValue);
oms.CreateRelationship(keyTTCValue, oms.GetInstance(KnownRelationshipGuids.Translatable_Text_Constant_Value__has__Language), languageInstance);
oms.CreateRelationship(keyTTC, oms.GetInstance(KnownRelationshipGuids.Translatable_Text_Constant__has__Translatable_Text_Constant_Value), keyTTCValue);
oms.SetAttributeValue(keyTTCValue, oms.GetInstance(KnownAttributeGuids.Text.Value), value);
return(keyTTC);
}
public static InstanceHandle CreateRelationshipInstance(this Oms oms, InstanceHandle sourceClassInstance, string name, InstanceHandle targetClassInstance, Guid globalIdentifier = default(Guid))
{
InstanceHandle key = InstanceHandle.Empty;
if (globalIdentifier == default(Guid))
{
key = oms.CreateInstance(KnownInstanceGuids.Classes.Relationship);
}
else
{
key = oms.CreateInstance(globalIdentifier, KnownInstanceGuids.Classes.Relationship);
}
InstanceHandle keyAttributeName = oms.GetInstance(KnownAttributeGuids.Text.Name);
oms.SetAttributeValue(key, keyAttributeName, name);
oms.CreateRelationship(key, oms.GetInstance(KnownRelationshipGuids.Relationship__has_source__Class), sourceClassInstance);
oms.CreateRelationship(key, oms.GetInstance(KnownRelationshipGuids.Relationship__has_destination__Class), targetClassInstance);
return(key);
}
/// <summary>
/// Creates a class with the given <paramref name="classInstanceId" /> and optional name and title.
/// </summary>
/// <remarks>
/// This method makes several calls to the underlying <see cref="Oms" /> to create the class instance and assign the
/// Name attribute the value of the <paramref name="name" /> parameter. A Translation with relationship
/// `Class.has title Translation` is associated with the newly-created Class. By default, the Translation Value is
/// created with the given <paramref name="title" /> and Language set to `English (United Sstates)`. If
/// <paramref name="title"/> is null, the <paramref name="name" /> parameter is used instead.
/// </remarks>
/// <returns>The <see cref="InstanceKey" /> of the newly-created class.</returns>
/// <param name="oms">Oms.</param>
/// <param name="classInstanceId">Class instance identifier.</param>
/// <param name="name">The language-agnostic name to assign to the newly-created class.</param>
/// <param name="title">The language-specific title to assign to the newly-created class.</param>
public static InstanceHandle CreateClass(this Oms oms, Guid classInstanceId, Guid parentClassInstanceId, string name = null, string title = null)
{
// FIXME: this should take into account security policy for the currently-logged-in user
InstanceHandle ih = oms.CreateInstance(classInstanceId, KnownInstanceGuids.Classes.Class);
if (parentClassInstanceId != Guid.Empty)
{
oms.CreateRelationship(ih, oms.GetInstance(KnownRelationshipGuids.Class__has_super__Class), oms.GetInstance(parentClassInstanceId));
oms.CreateRelationship(oms.GetInstance(parentClassInstanceId), oms.GetInstance(KnownRelationshipGuids.Class__has_sub__Class), ih);
}
if (name != null)
{
oms.SetAttributeValue(ih, oms.GetInstance(KnownAttributeGuids.Text.Name), name);
if (title == null)
{
title = name;
}
oms.CreateTranslation(ih, oms.GetInstance(KnownRelationshipGuids.Class__has_title__Translatable_Text_Constant), oms.GetInstance(KnownInstanceGuids.Languages.English), title);
}
return(ih);
}
public static string GetStringValue(this Oms oms, InstanceHandle[] stringComponents, InstanceHandle currentInstance)
{
if (stringComponents == null)
{
return(null);
}
StringBuilder sb = new StringBuilder();
for (int i = 0; i < stringComponents.Length; i++)
{
InstanceHandle ihParent = oms.GetParentClassInstance(stringComponents[i]);
if (oms.GetInstanceID(ihParent) == KnownInstanceGuids.Classes.ExtractSingleInstanceStringComponent)
{
InstanceHandle ihRelationship = oms.GetRelatedInstance(stringComponents[i], oms.GetInstance(KnownRelationshipGuids.Extract_Single_Instance_String_Component__has__Relationship));
InstanceHandle relInst = oms.GetRelatedInstance(currentInstance, ihRelationship);
if (relInst.IsEmpty)
{
// FIXME
}
sb.Append(GetInstanceTitle(oms, relInst));
}
else if (oms.GetInstanceID(ihParent) == KnownInstanceGuids.Classes.InstanceAttributeStringComponent)
{
InstanceHandle ihAttribute = oms.GetRelatedInstance(stringComponents[i], oms.GetInstance(KnownRelationshipGuids.Instance_Attribute_String_Component__has__Attribute));
string value = oms.GetAttributeValue <string>(currentInstance, ihAttribute);
sb.Append(value);
}
else if (oms.GetInstanceID(ihParent) == KnownInstanceGuids.Classes.TextConstantStringComponent)
{
string value = oms.GetAttributeValue <string>(stringComponents[i], oms.GetInstance(KnownAttributeGuids.Text.Value));
sb.Append(value);
}
}
return(sb.ToString());
}
public static InstanceHandle CreateClass(this Oms oms, Guid classInstanceId, string name = null, string title = null)
{
return(CreateClass(oms, classInstanceId, KnownInstanceGuids.Classes.Class, name, title));
}
public static bool HasInstance(this Oms oms, Guid id)
{
return(oms.GetInstance(id) != InstanceHandle.Empty);
}
/// <summary>
/// Gets all instances of the Class instance.
/// </summary>
/// <returns>The class instances.</returns>
/// <param name="oms">The <see cref="Oms" /> to query.</param>
public static InstanceHandle[] GetClassInstances(this Oms oms)
{
return(oms.GetRelatedInstances(oms.GetInstance(KnownInstanceGuids.Classes.Class), oms.GetInstance(KnownRelationshipGuids.Class__has_sub__Class)));
}
public static InstanceHandle GetParentClassInstance(this Oms oms, InstanceHandle inst)
{
InstanceHandle instParent = oms.GetRelatedInstance(inst, oms.GetInstance(KnownRelationshipGuids.Instance__for__Class));
return(instParent);
}
