public static BuildOptions Load(string path)
{
var options = new BuildOptions();
if (!File.Exists(path))
{
return options;
}
var doc = XDocument.Load(path);
var element = doc.Element(ElementName);
if (element != null)
{
var atttrib = element.Attribute(LanguageAttribute);
if (atttrib != null)
{
options.Language = (OutputLanguage)Enum.Parse(typeof(OutputLanguage), (string)atttrib);
}
atttrib = element.Attribute(OutputFolderAttribute);
if (atttrib != null)
{
options.OutputFolder = (string)atttrib;
}
atttrib = element.Attribute(NamespaceAttribute);
if (atttrib != null)
{
options.EntityNamespace = (string)atttrib;
}
atttrib = element.Attribute(EntityModifierAttribute);
if (atttrib != null)
{
options.EntityModifier = (TypeAttributes)Enum.Parse(typeof(TypeAttributes), (string)atttrib);
}
}
return options;
}
internal void SetBuildOptions(BuildOptions options)
{
options.Save(this.OptionsFile);
}
internal void GenerateCode(BuildOptions options)
{
using (var csProvider = CodeDomProvider.CreateProvider("C#")) // TODO: add VB support
{
foreach (var entity in Structure)
{
var ccu = new CodeCompileUnit();
var root = new CodeNamespace(options.EntityNamespace);
ccu.Namespaces.Add(root);
AddImports(root);
var entityClass = new CodeTypeDeclaration(entity.Entity.NameInStore);
entityClass.TypeAttributes = options.EntityModifier;
// TODO: determine KeyScheme
// TODO: set NameInStore if different than class name (user overridden)
var entityAttributeDeclaration = new CodeAttributeDeclaration("Entity",
new CodeAttributeArgument(new CodeSnippetExpression("KeyScheme." + entity.Entity.KeyScheme.ToString()))
// new CodeAttributeArgument(new CodeSnippetExpression("NameInStore=\"" + entity.Entity.NameInStore + "\""))
);
//new CodeAttributeArgument("KeyScheme", new CodePrimitiveExpression(KeyScheme.None))
entityClass.CustomAttributes.Add(entityAttributeDeclaration);
var fieldList = new List<CodeMemberField>();
var propList = new List<CodeMemberProperty>();
// TODO: timespans
// TODO: enums
// TODO: objects
foreach (var field in entity.Fields)
{
// TODO: optionally make it bindable with RaisePropertyChanged
var type = new CodeTypeReference(field.DataType.ToManagedType(field.AllowsNulls));
var backingFieldName = "m_" + field.FieldName.ToLower(); // TODO: let the use specify format
var backingField = new CodeMemberField(type, backingFieldName);
backingField.Attributes = MemberAttributes.Private;
fieldList.Add(backingField);
var prop = new CodeMemberProperty();
prop.Name = field.FieldName;
prop.Attributes = MemberAttributes.Public | MemberAttributes.Final; // TODO: get from UI
prop.CustomAttributes.Add(new CodeAttributeDeclaration("Field", GenerateFieldArguments(field)));
prop.Type = type;
prop.GetStatements.Add(
new CodeMethodReturnStatement(
new CodeFieldReferenceExpression(
new CodeThisReferenceExpression(), backingFieldName)));
prop.SetStatements.Add(
new CodeAssignStatement(
new CodeFieldReferenceExpression(
new CodeThisReferenceExpression(), backingFieldName),
new CodePropertySetValueReferenceExpression()));
propList.Add(prop);
}
// this is outside the loop above to give some semblance of structure to the code
foreach (var backingField in fieldList)
{
entityClass.Members.Add(backingField);
}
foreach (var prop in propList)
{
entityClass.Members.Add(prop);
}
root.Types.Add(entityClass);
// Generate the C# source code for this class
GenerateClassFile(options, csProvider, ccu, entity.Entity.NameInStore);
}
}
}
private void GenerateClassFile(BuildOptions buildOptions, CodeDomProvider provider, CodeCompileUnit ccu, string entityname)
{
var sb = new StringBuilder();
var sw = new StringWriter(sb);
// todo: make these settable
var options = new CodeGeneratorOptions();
options.BlankLinesBetweenMembers = true;
options.BracingStyle = "C";
options.ElseOnClosing = false;
options.IndentString = " ";
options.VerbatimOrder = true;
provider.GenerateCodeFromCompileUnit(ccu, sw, options);
var fileName = entityname + ".cs"; // TODO: add VB support
var path = buildOptions.OutputFolder;
if (!Directory.Exists(path)) Directory.CreateDirectory(path);
path = Path.Combine(path, fileName);
// TODO: make auto-delete optional or give a warning
if (File.Exists(path))
{
File.Delete(path);
}
try
{
using (var writer = File.CreateText(path))
{
writer.Write(sb.ToString());
writer.Close();
}
}
catch (IOException ex)
{
// TODO: handle this
throw ex;
}
}
