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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Harlinn.DBTool.Projects;
namespace Harlinn.DBTool.CodeGenerators.Entities
{
public class EntitySourceGenerator : GeneratorBase
{
Project project;
string className = "EntitySource";
List<ProjectTable> tagValuetables;
List<ProjectTable> entityTables;
public EntitySourceGenerator(Project project)
{
this.project = project;
tagValuetables = new List<ProjectTable>();
entityTables = new List<ProjectTable>();
List<ProjectTable> allTablesList = project.GetProjectTableList();
for (int i = 0; i < allTablesList.Count; i++)
{
ProjectTable projectTable = allTablesList[i];
if (projectTable.IsTagValue)
{
tagValuetables.Add(projectTable);
}
else
{
entityTables.Add(projectTable);
}
}
}
public override string GetFilename()
{
string directory = GetDirectory();
string result = directory + "\\" + className + ".cs";
return result;
}
public override string GetDirectory()
{
string namespace_ = project.EntityNamespace;
string directory = project.NamespaceToDirectory(namespace_);
return directory;
}
public void Generate()
{
string commonNamespace = project.CommonNamespace;
string dataNamespace = project.DataNamespace;
string entityNamespace = project.EntityNamespace;
string implementationNamespace = project.ServiceImplementationNamespace;
WriteLine("using System;");
WriteLine("using System.ComponentModel;");
WriteLine("using System.Windows.Forms;");
WriteLine("using System.Reflection;");
WriteLine();
WriteLine("using " + commonNamespace + ";");
WriteLine("using " + dataNamespace + ";");
WriteLine("using " + implementationNamespace + ";");
WriteLine();
WriteLine("namespace " + entityNamespace);
WriteLine("{");
WriteLine(" public class DefaultEntitySourceEntityContext");
WriteLine(" {");
WriteLine();
WriteLine(" private static EntityContext context;");
WriteLine(" private static object synchObj = new object();");
WriteLine();
WriteLine(" public static EntityContext Context");
WriteLine(" {");
WriteLine(" get");
WriteLine(" {");
WriteLine(" lock (synchObj)");
WriteLine(" {");
WriteLine(" if (context == null)");
WriteLine(" {");
WriteLine(" IDataContextProvider dataContextProvider = ServiceImplementation.Implementation;");
WriteLine(" context = new EntityContext(dataContextProvider);");
WriteLine(" }");
WriteLine();
WriteLine(" return context;");
WriteLine(" }");
WriteLine(" }");
WriteLine(" set");
WriteLine(" {");
WriteLine(" lock (synchObj)");
WriteLine(" {");
WriteLine(" if (context == value)");
WriteLine(" return;");
WriteLine(" context = value;");
WriteLine(" }");
WriteLine(" }");
WriteLine(" }");
WriteLine(" }");
WriteLine();
WriteLine();
WriteLine(" public class EntitySource : EntitySourceBase, INotifyPropertyChanged, ITypedList");
WriteLine(" {");
WriteLine(" private EntityType? entityType;");
WriteLine(" private EntityContext context;");
WriteLine(" private bool autoRetrieve;");
WriteLine();
WriteLine(" public event PropertyChangedEventHandler PropertyChanged;");
WriteLine();
WriteLine(" public EntitySource()");
WriteLine(" {");
WriteLine();
WriteLine(" }");
WriteLine();
WriteLine(" protected void OnPropertyChanged(string propertyName)");
WriteLine(" {");
WriteLine(" if (PropertyChanged != null)");
WriteLine(" {");
WriteLine(" PropertyChangedEventArgs eventArgs = new PropertyChangedEventArgs(propertyName);");
WriteLine(" PropertyChanged(this, eventArgs);");
WriteLine(" }");
WriteLine(" }");
WriteLine();
WriteLine(" public EntityContext Context");
WriteLine(" {");
WriteLine(" get");
WriteLine(" {");
WriteLine(" if (context == null)");
WriteLine(" {");
WriteLine(" if (DesignMode == false)");
WriteLine(" {");
WriteLine(" context = DefaultEntitySourceEntityContext.Context;");
WriteLine(" }");
WriteLine(" }");
WriteLine(" return context;");
WriteLine(" }");
WriteLine(" set");
WriteLine(" {");
WriteLine(" if (context == value)");
WriteLine(" return;");
WriteLine(" context = value;");
WriteLine(" }");
WriteLine(" }");
WriteLine();
WriteLine(" [Browsable(true), Bindable(true)]");
WriteLine(" public EntityType? EntityType");
WriteLine(" {");
WriteLine(" get");
WriteLine(" {");
WriteLine(" return entityType;");
WriteLine(" }");
WriteLine(" set");
WriteLine(" {");
WriteLine(" if (entityType == value)");
WriteLine(" return;");
WriteLine(" SetBindingList( null );");
WriteLine(" entityType = value;");
WriteLine(" OnPropertyChanged(\"EnityType\");");
WriteLine(" propertyDescriptorCollection = null;");
WriteLine(" OnListChanged(new ListChangedEventArgs(ListChangedType.PropertyDescriptorChanged, null));");
WriteLine(" }");
WriteLine(" }");
WriteLine();
WriteLine(" public bool AutoRetrieve");
WriteLine(" {");
WriteLine(" get");
WriteLine(" {");
WriteLine(" return autoRetrieve;");
WriteLine(" }");
WriteLine(" set");
WriteLine(" {");
WriteLine(" if (autoRetrieve == value)");
WriteLine(" return;");
WriteLine(" autoRetrieve = value;");
WriteLine(" OnPropertyChanged(\"AutoRetrieve\");");
WriteLine(" }");
WriteLine(" }");
List<ProjectTable> tableList = project.GetProjectTableList();
List<ProjectTable> entityList = new List<ProjectTable>();
foreach (ProjectTable projectTable in tableList)
{
if (projectTable.IsTagValue == false)
{
entityList.Add(projectTable);
}
}
WriteLine();
WriteLine(" protected override IBindingList GetBindingList()");
WriteLine(" {");
WriteLine(" IBindingList result = base.GetBindingList();");
WriteLine(" if ((result == null)&&(EntityType.HasValue))");
WriteLine(" {");
WriteLine(" EntityContext entityContext = Context;");
WriteLine(" switch (EntityType.Value)");
WriteLine(" {");
foreach (ProjectTable projectTable in entityList)
{
string baseName = projectTable.BaseName;
string methodName = "GetAll" + baseName + "s";
string entityListClassName = baseName + "EntityList";
WriteLine(" case " + dataNamespace + ".EntityType." + baseName + ":");
WriteLine(" {");
WriteLine(" if ((entityContext != null)&&(autoRetrieve))");
WriteLine(" {");
WriteLine(" result = entityContext." + methodName + "();");
WriteLine(" }");
WriteLine(" else");
WriteLine(" {");
WriteLine(" result = new " + entityListClassName + "();");
WriteLine(" }");
WriteLine(" }");
WriteLine(" break;");
}
WriteLine(" }"); /*end switch*/
WriteLine(" SetBindingList(result);");
WriteLine(" }");
WriteLine(" return result;");
WriteLine(" }");
WriteLine();
WriteLine();
WriteLine(" private PropertyDescriptorCollection propertyDescriptorCollection;");
WriteLine(" public PropertyDescriptorCollection GetItemProperties(PropertyDescriptor[] listAccessors)");
WriteLine(" {");
WriteLine(" if (listAccessors != null && listAccessors.Length > 0)");
WriteLine(" {");
WriteLine(" PropertyDescriptorCollection result = ListBindingHelper.GetListItemProperties(listAccessors[0].PropertyType);");
WriteLine(" return result;");
WriteLine(" }");
WriteLine(" else");
WriteLine(" {");
WriteLine(" if (propertyDescriptorCollection == null)");
WriteLine(" {");
WriteLine(" propertyDescriptorCollection = GetPropertyDescriptorCollection(EntityType);");
WriteLine(" }");
WriteLine(" return propertyDescriptorCollection;");
WriteLine(" }");
WriteLine(" }");
WriteLine();
WriteLine();
WriteLine(" public string GetListName(PropertyDescriptor[] listAccessors)");
WriteLine(" {");
WriteLine(" string result = \"Default\";");
WriteLine(" if (EntityType.HasValue)");
WriteLine(" {");
WriteLine(" switch (EntityType.Value)");
WriteLine(" {");
foreach (ProjectTable projectTable in entityList)
{
string baseName = projectTable.BaseName;
string entityClassName = projectTable.EntityClassName;
WriteLine(" case " + dataNamespace + ".EntityType." + baseName + ":");
WriteLine(" result = typeof(" + entityClassName + ").Name;");
WriteLine(" break;");
}
WriteLine(" }"); /*end switch*/
WriteLine(" }");
WriteLine(" return result;");
WriteLine(" }");
WriteLine();
WriteLine();
WriteLine(" public static PropertyDescriptorCollection GetPropertyDescriptorCollection( EntityType? entityType )");
WriteLine(" {");
WriteLine(" PropertyDescriptorCollection result = null;");
WriteLine(" try");
WriteLine(" {");
WriteLine(" if (entityType.HasValue)");
WriteLine(" {");
WriteLine(" switch (entityType.Value)");
WriteLine(" {");
foreach (ProjectTable projectTable in entityList)
{
string baseName = projectTable.BaseName;
string entityClassName = projectTable.EntityClassName;
WriteLine(" case " + dataNamespace + ".EntityType." + baseName + ":");
WriteLine(" result = TypeDescriptor.GetProperties(typeof(" + entityClassName + "), new Attribute[] { new BrowsableAttribute(true) });");
WriteLine(" break;");
}
WriteLine(" }"); /*end switch*/
WriteLine(" }");
WriteLine(" }");
WriteLine(" catch( Exception )");
WriteLine(" {");
WriteLine(" }");
WriteLine(" return result;");
WriteLine(" }");
WriteLine();
WriteLine(" }");
WriteLine();
WriteLine("}");
}
}
}
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Chief Architect - Sea Surveillance AS.
Specializing in integrated operations and high performance computing solutions.
I’ve been fooling around with computers since the early eighties, I’ve even done work on CP/M and MP/M.
Wrote my first “real” program on a BBC micro model B based on a series in a magazine at that time. It was fun and I got hooked on this thing called programming ...
A few Highlights:
- High performance application server development
- Model Driven Architecture and Code generators
- Real-Time Distributed Solutions
- C, C++, C#, Java, TSQL, PL/SQL, Delphi, ActionScript, Perl, Rexx
- Microsoft SQL Server, Oracle RDBMS, IBM DB2, PostGreSQL
- AMQP, Apache qpid, RabbitMQ, Microsoft Message Queuing, IBM WebSphereMQ, Oracle TuxidoMQ
- Oracle WebLogic, IBM WebSphere
- Corba, COM, DCE, WCF
- AspenTech InfoPlus.21(IP21), OsiSoft PI
More information about what I do for a living can be found at:
harlinn.com or
LinkedIn
You can contact me at
espen@harlinn.no
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