Enterprise Library 2.0,.net,Enterprise Library 3.0 Data Access Application Block,Enterprise Library 2.0 Logging Application Block Part II - Simple ASP.NET 2.0 Website Example - Logging Unhandled ExceptionsEnterprise Library 2.0 Configuration Tool - Configuring Data Access Application Block

1. Enterprise Library for .NET Framework 2.0 R a j u P e r u m a n d l a 9 8 6 6 0 0 1 2 3 0

4. Enterprise Library Ecosystem Partner blocks Customer blocks Community blocks p&p blocks Block Specification p&p Enterprise Library Partner X library Customer Y library Customer Z library

8. Enterprise Library for .NET Framework 2.0 Caching Security Data Access Logging Exception Handling Cryptography Core Block Dependency Optional Provider Dependency Plug-in Config Helpers & Design Instrumen- tation Object Builder

9. Exception Handling Application Block Caching Security Data Access Logging Exception Handling Cryptography Core Block Dependency Optional Provider Dependency Plug-in Config Helpers & Design Instrumen- tation Object Builder

13. Logging Application Block Caching Security Data Access Logging Exception Handling Cryptography Core Block Dependency Optional Provider Dependency Plug-in Config Helpers & Design Instrumen- tation Object Builder

18. Data Access Application Block Caching Security Data Access Logging Exception Handling Cryptography Core Block Dependency Optional Provider Dependency Plug-in Config Helpers & Design Instrumen- tation Object Builder

21. Data Access - Examples Public Function GetProductsInCategory(ByRef Category As Integer) As DataSet ' Create the Database object, using the database instance with the ' specified logical name. This is mapped to a connection string in ' the configuration file Dim db As Database = DatabaseFactory.CreateDatabase("Sales") ' Invoke the stored procedure with one line of code! return db.ExecuteDataSet("GetProductsByCategory", Category) ' Note: connection was closed by ExecuteDataSet method call End Function public Dataset GetProductsInCategory(string connectionString, int category) { // Create the Database object, using the specified connection string SqlDatabase db = new SqlDatabase(connectionString); // Invoke the stored procedure with one line of code! return db.ExecuteDataSet("GetProductsByCategory", category); // Note: connection was closed by ExecuteDataSet method call }

23. Caching Application Block Caching Security Data Access Logging Exception Handling Cryptography Core Block Dependency Optional Provider Dependency Plug-in Config Helpers & Design Instrumen- tation Object Builder

26. Cryptography Application Block Caching Security Data Access Logging Exception Handling Cryptography Core Block Dependency Optional Provider Dependency Plug-in Config Helpers & Design Instrumen- tation Object Builder

29. Enterprise Library for .NET Framework 2.0 Caching Security Data Access Logging Exception Handling Cryptography Core Block Dependency Optional Provider Dependency Plug-in Config Helpers & Design Instrumen- tation Object Builder

32. Core architecture Caching Security Data Access Logging Exception Handling Cryptography Core Block Dependency Optional Provider Dependency Plug-in Config Helpers & Design Instrumen- tation Object Builder

34. Configuration Sources Application Blocks or Custom Code IConfigurationSource SystemConfiguration Source FileConfiguration Source SqlConfiguration Source app.config / web.config foo.config app.config / web.config Default ConfigurationSource = … System.Configuration File Watcher File Watcher

44. Instrumentation Example public class Database : IInstrumentationEventProvider { DbConnection OpenConnection() { // Do stuff instrumentationProvider.FireConnectionOpenedEvent(); } public object GetInstrumentationEventProvider() { return instrumentationProvider; } } [InstrumentationListener( typeof(DataInstrumentationListener), typeof(DataInstrumentationListenerBinder))] public class DataInstrumentationProvider { [InstrumentationProvider(&quot;ConnectionOpened&quot;)] public event E ventHandler<EventArgs> connectionOpened; public void FireConnectionOpenedEvent() { connectionOpened(this, new EventArgs()); } internal class DataInstrumentationListener : InstrumentationListener { public DataInstrumentationListener(string instanceName, bool perfCountersEnabled, bool eventLogEnabled, bool wmiEnabled) : base(perf…, event…, wmi…) {} [InstrumentationConsumer( “ConnectionOpened&quot;)] public void ConnectionOpened(object sender, EventArgs e) { if (PerformanceCountersEnabled) connectionOpenedCounter.Increment(); }

47. Factories Core Application Block Static Factory or façade Instance Provider Factory Enterprise Library Factory Custom Factory Block Objects Object Builder Strategies User Code Configuration Source

53. Questions?