/// <summary>
/// Add a symbol to the global symbol table that maps to the passed in item.
/// </summary>
/// <param name="symbol"></param>
/// <param name="item"></param>
internal void AddSymbol(Symbol symbol, EFElement item)
{
if (!_symbolTable.ContainsKey(symbol))
{
var list = new List<EFElement>(1);
list.Add(item);
_symbolTable.Add(symbol, list);
}
else
{
var current = LookupSymbol(symbol);
if (current.Identity != item.Identity)
{
// duplicate symbol. Add the new item to the list
_symbolTable[symbol].Add(item);
// make it ready to display to the user
var displayableSymbol = EFNormalizableItem.ConvertSymbolToExternal(symbol);
// add an duplicate symbol error
var msg = String.Format(CultureInfo.CurrentCulture, Resources.NORMALIZE_DUPLICATE_SYMBOL_DEFINED, displayableSymbol);
var errorInfo = new ErrorInfo(
ErrorInfo.Severity.ERROR, msg, item, ErrorCodes.NORMALIZE_DUPLICATE_SYMBOL_DEFINED, ErrorClass.ResolveError);
AddError(errorInfo);
}
}
}
/// <summary>
/// Create a new NormalizedName with the passed in Symbol's parts as the prefix parts of the new symbol
/// </summary>
internal NormalizedName(
Symbol originalReferenceAsSymbol,
string aliasPart, string namespacePart, string remainingPart)
{
Debug.Assert(
(null == aliasPart || null == namespacePart),
"One or both of aliasPart or namespacePart should be null. Received aliasPart " + aliasPart + ", namespacePart "
+ namespacePart);
_referenceAsSymbol = originalReferenceAsSymbol;
_aliasPart = aliasPart;
_namespacePart = namespacePart;
_remainingPart = remainingPart;
}
/// <summary>
/// Create a new Symbol with the passed in Symbol's parts as the prefix parts of the new symbol
/// </summary>
/// <param name="symbol"></param>
/// <param name="parts"></param>
internal Symbol(Symbol symbol, params string[] parts)
{
_parts = new String[symbol._parts.Length + parts.Length];
var i = 0;
for (; i < symbol._parts.Length; i++)
{
_parts[i] = symbol._parts[i];
}
for (var j = 0; j < parts.Length; j++)
{
_parts[i + j] = parts[j];
}
}
internal static NormalizedName DefaultNameNormalizerForEDM(EFElement parent, string refName)
{
var model = ModelHelper.GetBaseModelRoot(parent);
NormalizedName normalizedName = null;
if (model != null)
{
string potentialAliasOrNamespacePart = null;
string nonAliasOrNamespacePart = null;
SeparateRefNameIntoParts(refName, out potentialAliasOrNamespacePart, out nonAliasOrNamespacePart);
// does the name start with the schema's namespace or alias?
if (!string.IsNullOrEmpty(potentialAliasOrNamespacePart))
{
refName = nonAliasOrNamespacePart;
var symbol = new Symbol(model.NamespaceValue, refName);
if (potentialAliasOrNamespacePart.Equals(model.NamespaceValue, StringComparison.CurrentCultureIgnoreCase))
{
// it starts with the namespace
normalizedName = new NormalizedName(symbol, null, model.NamespaceValue, refName);
}
else if (potentialAliasOrNamespacePart.Equals(model.AliasValue, StringComparison.CurrentCultureIgnoreCase))
{
// it starts with the alias
normalizedName = new NormalizedName(symbol, model.AliasValue, null, refName);
}
}
else
{
// now, the name doesn't start with the alias or the namespace, so tack on the namespace
var symbol = new Symbol(model.NamespaceValue, refName);
normalizedName = new NormalizedName(symbol, null, null, refName);
}
}
else
{
var symbol = new Symbol(refName);
normalizedName = new NormalizedName(symbol, null, null, refName);
}
return normalizedName;
}
// return true if the given symbol is for a valid key on the principal end
private bool IsValidPrincipalKey(Symbol key, HashSet<Property> principalKeys)
{
IEnumerable<EFElement> symbols = _association.Artifact.ArtifactSet.GetSymbolList(key);
foreach (var el in symbols)
{
var p = el as Property;
if (p != null)
{
if (principalKeys.Contains(p))
{
return true;
}
}
}
return false;
}
internal KeyListItem(Symbol key)
{
_key = key;
}
internal MappingListItem(Symbol principalSymbol, Symbol dependentSymbol, bool isValidPrincipalKey)
{
_principalSymbol = principalSymbol;
DependentProperty = dependentSymbol;
IsValidPrincipalKey = isValidPrincipalKey;
}
// given a symbol and an entity type, return the property that matches a key for that entity type
private static Property GetKeyForType(Symbol symbol, EntityType entityType, HashSet<Property> keys)
{
IEnumerable<EFElement> elements = entityType.Artifact.ArtifactSet.GetSymbolList(symbol);
foreach (var e in elements)
{
var p = e as Property;
if (keys.Contains(p))
{
return p;
}
}
return null;
}
internal static NormalizedName DefaultNameNormalizerForMSL(EFElement parent, string refName)
{
var model = MappingModel.GetMappingRoot(parent);
string potentialAliasOrNamespacePart = null;
string nonAliasOrNamespacePart = null;
SeparateRefNameIntoParts(refName, out potentialAliasOrNamespacePart, out nonAliasOrNamespacePart);
Symbol symbol = null;
NormalizedName normalizedName = null;
if (!string.IsNullOrEmpty(potentialAliasOrNamespacePart))
{
// see if our type name starts with any of the defined aliases
var startsWithAlias = false;
foreach (var a in model.Aliases())
{
if (potentialAliasOrNamespacePart.Equals(a.Key.Value, StringComparison.CurrentCultureIgnoreCase))
{
if (a.State == EFElementState.Parsed)
{
// alias is only in a parsed state, skip for now and don't add an error
// we'll end up looping around again later once its been resolved
return new NormalizedName(new Symbol(refName), null, null, refName);
}
if (a.State != EFElementState.Resolved
|| a.Value.Status != BindingStatus.Known)
{
var msg = string.Format(CultureInfo.CurrentCulture, Resources.RESOLVE_UNRESOLVED_ALIAS, refName);
var artifactSet = parent.Artifact.ModelManager.GetArtifactSet(parent.Artifact.Uri);
var errorInfo = new ErrorInfo(
ErrorInfo.Severity.ERROR, msg, parent, ErrorCodes.RESOLVE_UNRESOLVED_ALIAS, ErrorClass.ResolveError);
artifactSet.AddError(errorInfo);
return new NormalizedName(new Symbol(String.Empty), null, null, refName);
}
// in the symbol replace alias with the full namespace
symbol = new Symbol(a.Value.Target.Namespace.Value, nonAliasOrNamespacePart);
normalizedName = new NormalizedName(symbol, a.Key.Value, null, nonAliasOrNamespacePart);
startsWithAlias = true;
break;
}
}
if (startsWithAlias == false
&& model.Artifact.ConceptualModel() != null
&& model.Artifact.StorageModel() != null)
{
var conceptualNamespace = model.Artifact.ConceptualModel().Namespace.Value;
var storageNamespace = model.Artifact.StorageModel().Namespace.Value;
var currentNamespace = string.Empty;
var convertIt = false;
var startsWithConceptualNamespace = false;
var startsWithStorageNamespace = false;
if (potentialAliasOrNamespacePart.Equals(conceptualNamespace, StringComparison.CurrentCultureIgnoreCase))
{
startsWithConceptualNamespace = true;
}
if (potentialAliasOrNamespacePart.Equals(storageNamespace, StringComparison.CurrentCultureIgnoreCase))
{
startsWithStorageNamespace = true;
}
if (startsWithConceptualNamespace && startsWithStorageNamespace)
{
// in this case, the two namespaces start with the same thing and we got a match
// on both; for example if there is pubsModel & pubsModel.Store and we are checking
// on a string 'pubsModel.Store.Customer'; whichever is longer is the real one
if (conceptualNamespace.Length > storageNamespace.Length)
{
currentNamespace = conceptualNamespace;
convertIt = true;
}
else
{
currentNamespace = storageNamespace;
convertIt = true;
}
}
else if (startsWithConceptualNamespace)
{
currentNamespace = conceptualNamespace;
convertIt = true;
}
else if (startsWithStorageNamespace)
{
currentNamespace = storageNamespace;
convertIt = true;
}
if (convertIt)
{
// convert to our normalized name format
symbol = new Symbol(currentNamespace, nonAliasOrNamespacePart);
normalizedName = new NormalizedName(symbol, null, currentNamespace, nonAliasOrNamespacePart);
}
}
}
if (symbol == null)
{
// either there was no Alias or Namespace part or it didn't
// match any of the known Aliases or Namespaces
symbol = new Symbol(refName);
normalizedName = new NormalizedName(symbol, null, null, refName);
}
return normalizedName;
}
/// <summary>
/// Removes the passed in symbol.
/// </summary>
/// <param name="symbol"></param>
/// <param name="item"></param>
internal void RemoveSymbol(Symbol symbol, EFElement item)
{
if (_symbolTable.ContainsKey(symbol))
{
var items = _symbolTable[symbol];
if (items.Count == 1)
{
_symbolTable.Remove(symbol);
}
else
{
items.Remove(item);
if (items.Count == 1)
{
// remove any duplicate symbol errors on the last remaining item with this symbol
var otherItem = items[0];
RemoveErrorsForEFObject(otherItem, ErrorClass.ResolveError, ErrorCodes.NORMALIZE_DUPLICATE_SYMBOL_DEFINED);
}
}
// remove any existing duplicate symbol errors on this item
RemoveErrorsForEFObject(item, ErrorClass.ResolveError, ErrorCodes.NORMALIZE_DUPLICATE_SYMBOL_DEFINED);
}
}
/// <summary>
/// Returns the complete list of items associated with the passed in symbol.
/// </summary>
/// <param name="symbol"></param>
/// <returns>The list of items with the symbol, the list may be empty</returns>
internal IList<EFElement> GetSymbolList(Symbol symbol)
{
List<EFElement> symbolList;
return _symbolTable.TryGetValue(symbol, out symbolList)
? symbolList
: new List<EFElement>();
}
/// <summary>
/// Looks up the symbol and returns the item (if any)
/// </summary>
/// <param name="symbol"></param>
/// <returns>Returns null if the symbol isn't found</returns>
internal EFElement LookupSymbol(Symbol symbol)
{
if (!_symbolTable.ContainsKey(symbol))
{
return null;
}
// just return first entry in the list
return _symbolTable[symbol][0];
}
/// <summary>
/// This removes our separator and replaces it with the runtime's separator
/// </summary>
internal static string ConvertSymbolToExternal(Symbol symbol)
{
return symbol.ToDisplayString();
}
private Symbol _normalizedName; // = string.Empty;
/// <summary>
/// This returns the last "part" of the normalized name
/// </summary>
internal static string GetLocalNameFromNormalizedName(Symbol normalizedName)
{
var localName = normalizedName.GetLocalName();
Debug.Assert(string.IsNullOrEmpty(localName) == false);
return localName;
}