/// <summary>
/// Outputs an EDMX artifact to the provided XmlWriter.
/// </summary>
/// <param name="model">Model to be written.</param>
/// <param name="writer">XmlWriter the generated EDMX will be written to.</param>
/// <param name="target">Target implementation of the EDMX being generated.</param>
/// <param name="errors">Errors that prevented successful serialization, or no errors if serialization was successfull. </param>
/// <returns>A value indicating whether serialization was successful.</returns>
public static bool TryWriteEdmx(IEdmModel model, XmlWriter writer, EdmxTarget target, out IEnumerable<EdmError> errors)
{
EdmUtil.CheckArgumentNull(model, "model");
EdmUtil.CheckArgumentNull(writer, "writer");
errors = model.GetSerializationErrors();
if (errors.FirstOrDefault() != null)
{
return false;
}
Version edmxVersion = model.GetEdmxVersion();
if (edmxVersion != null)
{
if (!CsdlConstants.SupportedEdmxVersions.ContainsKey(edmxVersion))
{
errors = new EdmError[] { new EdmError(new CsdlLocation(0, 0), EdmErrorCode.UnknownEdmxVersion, Edm.Strings.Serializer_UnknownEdmxVersion) };
return false;
}
}
else if (!CsdlConstants.EdmToEdmxVersions.TryGetValue(model.GetEdmVersion() ?? EdmConstants.EdmVersionLatest, out edmxVersion))
{
errors = new EdmError[] { new EdmError(new CsdlLocation(0, 0), EdmErrorCode.UnknownEdmVersion, Edm.Strings.Serializer_UnknownEdmVersion) };
return false;
}
IEnumerable<EdmSchema> schemas = new EdmModelSchemaSeparationSerializationVisitor(model).GetSchemas();
EdmxWriter edmxWriter = new EdmxWriter(model, schemas, writer, edmxVersion, target);
edmxWriter.WriteEdmx();
errors = Enumerable.Empty<EdmError>();
return true;
}
internal static bool TryWriteCsdl(IEdmModel model, Func<string, XmlWriter> writerProvider, bool singleFileExpected, out IEnumerable<EdmError> errors)
{
EdmUtil.CheckArgumentNull(model, "model");
EdmUtil.CheckArgumentNull(writerProvider, "writerProvider");
errors = model.GetSerializationErrors();
if (errors.FirstOrDefault() != null)
{
return false;
}
IEnumerable<EdmSchema> schemas = new EdmModelSchemaSeparationSerializationVisitor(model).GetSchemas();
if (schemas.Count() > 1 && singleFileExpected)
{
errors = new EdmError[] { new EdmError(new CsdlLocation(0, 0), EdmErrorCode.SingleFileExpected, Edm.Strings.Serializer_SingleFileExpected) };
return false;
}
if (schemas.Count() == 0)
{
errors = new EdmError[] { new EdmError(new CsdlLocation(0, 0), EdmErrorCode.NoSchemasProduced, Edm.Strings.Serializer_NoSchemasProduced) };
return false;
}
WriteSchemas(model, schemas, writerProvider);
errors = Enumerable.Empty<EdmError>();
return true;
}