Commit for development environment setup
This commit is contained in:
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using System;
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using System.Threading;
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using System.Reflection;
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using System.Runtime.Remoting;
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using System.Runtime.Remoting.Channels;
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using System.Runtime.Remoting.Channels.Http;
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using Csla.Properties;
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namespace Csla
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{
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/// <summary>
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/// This is the client-side DataPortal as described in
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/// Chapter 4.
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/// </summary>
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public static class DataPortal
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{
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#region DataPortal events
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/// <summary>
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/// Raised by DataPortal prior to calling the
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/// requested server-side DataPortal method.
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/// </summary>
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public static event Action<DataPortalEventArgs> DataPortalInvoke;
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/// <summary>
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/// Raised by DataPortal after the requested
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/// server-side DataPortal method call is complete.
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/// </summary>
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public static event Action<DataPortalEventArgs> DataPortalInvokeComplete;
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private static void OnDataPortalInvoke(DataPortalEventArgs e)
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{
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Action<DataPortalEventArgs> action = DataPortalInvoke;
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if (action != null)
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action(e);
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}
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private static void OnDataPortalInvokeComplete(DataPortalEventArgs e)
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{
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Action<DataPortalEventArgs> action = DataPortalInvokeComplete;
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if (action != null)
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action(e);
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}
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#endregion
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#region Data Access methods
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private const int EmptyCriteria = 1;
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/// <summary>
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/// Called by a factory method in a business class to create
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/// a new object, which is loaded with default
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/// values from the database.
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/// </summary>
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/// <typeparam name="T">Specific type of the business object.</typeparam>
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/// <param name="criteria">Object-specific criteria.</param>
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/// <returns>A new object, populated with default values.</returns>
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public static T Create<T>(object criteria)
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{
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return (T)Create(typeof(T), criteria);
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}
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/// <summary>
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/// Called by a factory method in a business class to create
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/// a new object, which is loaded with default
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/// values from the database.
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/// </summary>
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/// <typeparam name="T">Specific type of the business object.</typeparam>
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/// <returns>A new object, populated with default values.</returns>
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public static T Create<T>()
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{
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return (T)Create(typeof(T), EmptyCriteria);
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}
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/// <summary>
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/// Called by a factory method in a business class to create
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/// a new object, which is loaded with default
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/// values from the database.
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/// </summary>
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/// <param name="criteria">Object-specific criteria.</param>
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/// <returns>A new object, populated with default values.</returns>
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[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2223:MembersShouldDifferByMoreThanReturnType")]
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[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1004:GenericMethodsShouldProvideTypeParameter")]
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public static object Create(object criteria)
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{
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return Create(MethodCaller.GetObjectType(criteria), criteria);
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}
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private static object Create(Type objectType, object criteria)
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{
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Server.DataPortalResult result;
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MethodInfo method = MethodCaller.GetCreateMethod(objectType, criteria);
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DataPortalClient.IDataPortalProxy proxy;
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proxy = GetDataPortalProxy(RunLocal(method));
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Server.DataPortalContext dpContext =
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new Csla.Server.DataPortalContext(GetPrincipal(), proxy.IsServerRemote);
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OnDataPortalInvoke(new DataPortalEventArgs(dpContext));
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try
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{
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result = proxy.Create(objectType, criteria, dpContext);
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}
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catch (Server.DataPortalException ex)
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{
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result = ex.Result;
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if (proxy.IsServerRemote)
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ApplicationContext.SetGlobalContext(result.GlobalContext);
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throw new DataPortalException(
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string.Format("DataPortal.Create {0} ({1})", Resources.Failed, ex.InnerException.InnerException),
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ex.InnerException, result.ReturnObject);
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}
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if (proxy.IsServerRemote)
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ApplicationContext.SetGlobalContext(result.GlobalContext);
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OnDataPortalInvokeComplete(new DataPortalEventArgs(dpContext));
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return result.ReturnObject;
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}
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/// <summary>
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/// Called by a factory method in a business class to retrieve
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/// an object, which is loaded with values from the database.
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/// </summary>
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/// <typeparam name="T">Specific type of the business object.</typeparam>
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/// <param name="criteria">Object-specific criteria.</param>
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/// <returns>An object populated with values from the database.</returns>
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[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2223:MembersShouldDifferByMoreThanReturnType")]
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[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1004:GenericMethodsShouldProvideTypeParameter")]
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[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Globalization", "CA1303:DoNotPassLiteralsAsLocalizedParameters", MessageId = "Csla.DataPortalException.#ctor(System.String,System.Exception,System.Object)")]
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public static T Fetch<T>(object criteria)
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{
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return (T)Fetch(typeof(T), criteria);
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}
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/// <summary>
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/// Called by a factory method in a business class to retrieve
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/// an object, which is loaded with values from the database.
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/// </summary>
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/// <typeparam name="T">Specific type of the business object.</typeparam>
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/// <returns>An object populated with values from the database.</returns>
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[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2223:MembersShouldDifferByMoreThanReturnType")]
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[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1004:GenericMethodsShouldProvideTypeParameter")]
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[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Globalization", "CA1303:DoNotPassLiteralsAsLocalizedParameters", MessageId = "Csla.DataPortalException.#ctor(System.String,System.Exception,System.Object)")]
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public static T Fetch<T>()
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{
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return (T)Fetch(typeof(T), EmptyCriteria);
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}
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/// <summary>
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/// Called by a factory method in a business class to retrieve
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/// an object, which is loaded with values from the database.
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/// </summary>
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/// <param name="criteria">Object-specific criteria.</param>
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/// <returns>An object populated with values from the database.</returns>
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public static object Fetch(object criteria)
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{
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return Fetch(MethodCaller.GetObjectType(criteria), criteria);
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}
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private static object Fetch(Type objectType, object criteria)
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{
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Server.DataPortalResult result;
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MethodInfo method = MethodCaller.GetFetchMethod(objectType, criteria);
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DataPortalClient.IDataPortalProxy proxy;
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proxy = GetDataPortalProxy(RunLocal(method));
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Server.DataPortalContext dpContext =
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new Server.DataPortalContext(GetPrincipal(),
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proxy.IsServerRemote);
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OnDataPortalInvoke(new DataPortalEventArgs(dpContext));
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try
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{
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result = proxy.Fetch(objectType, criteria, dpContext);
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}
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catch (Server.DataPortalException ex)
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{
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result = ex.Result;
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if (proxy.IsServerRemote)
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ApplicationContext.SetGlobalContext(result.GlobalContext);
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throw new DataPortalException(
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String.Format("DataPortal.Fetch {0} ({1})", Resources.Failed, ex.InnerException.InnerException),
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ex.InnerException, result.ReturnObject);
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}
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if (proxy.IsServerRemote)
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ApplicationContext.SetGlobalContext(result.GlobalContext);
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OnDataPortalInvokeComplete(new DataPortalEventArgs(dpContext));
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return result.ReturnObject;
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}
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/// <summary>
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/// Called to execute a Command object on the server.
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/// </summary>
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/// <remarks>
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/// <para>
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/// To be a Command object, the object must inherit from
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/// <see cref="CommandBase">CommandBase</see>.
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/// </para><para>
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/// Note that this method returns a reference to the updated business object.
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/// If the server-side DataPortal is running remotely, this will be a new and
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/// different object from the original, and all object references MUST be updated
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/// to use this new object.
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/// </para><para>
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/// On the server, the Command object's DataPortal_Execute() method will
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/// be invoked. Write any server-side code in that method.
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/// </para>
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/// </remarks>
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/// <typeparam name="T">Specific type of the Command object.</typeparam>
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/// <param name="obj">A reference to the Command object to be executed.</param>
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/// <returns>A reference to the updated Command object.</returns>
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[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1062:ValidateArgumentsOfPublicMethods")]
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[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Globalization", "CA1303:DoNotPassLiteralsAsLocalizedParameters",
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MessageId="Csla.DataPortalException.#ctor(System.String,System.Exception,System.Object)")]
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public static T Execute<T>(T obj) where T : CommandBase
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{
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return (T)Update(obj);
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}
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/// <summary>
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/// Called to execute a Command object on the server.
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/// </summary>
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/// <remarks>
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/// <para>
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/// Note that this method returns a reference to the updated business object.
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/// If the server-side DataPortal is running remotely, this will be a new and
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/// different object from the original, and all object references MUST be updated
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/// to use this new object.
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/// </para><para>
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/// On the server, the Command object's DataPortal_Execute() method will
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/// be invoked. Write any server-side code in that method.
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/// </para>
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/// </remarks>
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/// <param name="obj">A reference to the Command object to be executed.</param>
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/// <returns>A reference to the updated Command object.</returns>
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[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1062:ValidateArgumentsOfPublicMethods")]
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[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Globalization", "CA1303:DoNotPassLiteralsAsLocalizedParameters", MessageId="Csla.DataPortalException.#ctor(System.String,System.Exception,System.Object)")]
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public static CommandBase Execute(CommandBase obj)
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{
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return (CommandBase)Update(obj);
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}
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/// <summary>
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/// Called by the business object's Save() method to
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/// insert, update or delete an object in the database.
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/// </summary>
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/// <remarks>
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/// Note that this method returns a reference to the updated business object.
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/// If the server-side DataPortal is running remotely, this will be a new and
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/// different object from the original, and all object references MUST be updated
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/// to use this new object.
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/// </remarks>
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/// <typeparam name="T">Specific type of the business object.</typeparam>
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/// <param name="obj">A reference to the business object to be updated.</param>
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/// <returns>A reference to the updated business object.</returns>
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[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1062:ValidateArgumentsOfPublicMethods")]
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[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Globalization", "CA1303:DoNotPassLiteralsAsLocalizedParameters", MessageId = "Csla.DataPortalException.#ctor(System.String,System.Exception,System.Object)")]
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public static T Update<T>(T obj)
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{
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return (T)Update((object)obj);
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}
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/// <summary>
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/// Called by the business object's Save() method to
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/// insert, update or delete an object in the database.
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/// </summary>
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/// <remarks>
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/// Note that this method returns a reference to the updated business object.
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/// If the server-side DataPortal is running remotely, this will be a new and
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/// different object from the original, and all object references MUST be updated
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/// to use this new object.
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/// </remarks>
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/// <param name="obj">A reference to the business object to be updated.</param>
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/// <returns>A reference to the updated business object.</returns>
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public static object Update(object obj)
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{
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Server.DataPortalResult result;
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MethodInfo method;
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string methodName;
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if (obj is CommandBase)
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methodName = "DataPortal_Execute";
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else if (obj is Core.BusinessBase)
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{
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Core.BusinessBase tmp = (Core.BusinessBase)obj;
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if (tmp.IsDeleted)
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methodName = "DataPortal_DeleteSelf";
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else
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if (tmp.IsNew)
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methodName = "DataPortal_Insert";
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else
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methodName = "DataPortal_Update";
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}
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else
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methodName = "DataPortal_Update";
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method = MethodCaller.GetMethod(obj.GetType(), methodName);
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DataPortalClient.IDataPortalProxy proxy;
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proxy = GetDataPortalProxy(RunLocal(method));
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Server.DataPortalContext dpContext =
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new Server.DataPortalContext(GetPrincipal(), proxy.IsServerRemote);
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OnDataPortalInvoke(new DataPortalEventArgs(dpContext));
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try
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{
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result = proxy.Update(obj, dpContext);
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}
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catch (Server.DataPortalException ex)
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{
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result = ex.Result;
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if (proxy.IsServerRemote)
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ApplicationContext.SetGlobalContext(result.GlobalContext);
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throw new DataPortalException(
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String.Format("DataPortal.Update {0} ({1})", Resources.Failed, ex.InnerException.InnerException),
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ex.InnerException, result.ReturnObject);
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}
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if (proxy.IsServerRemote)
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ApplicationContext.SetGlobalContext(result.GlobalContext);
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OnDataPortalInvokeComplete(new DataPortalEventArgs(dpContext));
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return result.ReturnObject;
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}
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/// <summary>
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/// Called by a Shared (static in C#) method in the business class to cause
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/// immediate deletion of a specific object from the database.
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/// </summary>
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/// <param name="criteria">Object-specific criteria.</param>
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[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Globalization", "CA1303:DoNotPassLiteralsAsLocalizedParameters", MessageId = "Csla.DataPortalException.#ctor(System.String,System.Exception,System.Object)")]
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public static void Delete(object criteria)
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{
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Server.DataPortalResult result;
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MethodInfo method = MethodCaller.GetMethod(
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MethodCaller.GetObjectType(criteria), "DataPortal_Delete", criteria);
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DataPortalClient.IDataPortalProxy proxy;
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proxy = GetDataPortalProxy(RunLocal(method));
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Server.DataPortalContext dpContext = new Server.DataPortalContext(GetPrincipal(), proxy.IsServerRemote);
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OnDataPortalInvoke(new DataPortalEventArgs(dpContext));
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try
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{
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result = proxy.Delete(criteria, dpContext);
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}
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catch (Server.DataPortalException ex)
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{
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result = ex.Result;
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if (proxy.IsServerRemote)
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ApplicationContext.SetGlobalContext(result.GlobalContext);
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throw new DataPortalException(
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String.Format("DataPortal.Delete {0} ({1})", Resources.Failed, ex.InnerException.InnerException),
|
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ex.InnerException, result.ReturnObject);
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}
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if (proxy.IsServerRemote)
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ApplicationContext.SetGlobalContext(result.GlobalContext);
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OnDataPortalInvokeComplete(new DataPortalEventArgs(dpContext));
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}
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#endregion
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#region DataPortal Proxy
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private static DataPortalClient.IDataPortalProxy _localPortal;
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private static DataPortalClient.IDataPortalProxy _portal;
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private static DataPortalClient.IDataPortalProxy GetDataPortalProxy(bool forceLocal)
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||||
{
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if (forceLocal)
|
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{
|
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if (_localPortal == null)
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_localPortal = new DataPortalClient.LocalProxy();
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return _localPortal;
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||||
}
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else
|
||||
{
|
||||
if (_portal == null)
|
||||
{
|
||||
string proxyTypeName = ApplicationContext.DataPortalProxy;
|
||||
if (proxyTypeName == "Local")
|
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_portal = new DataPortalClient.LocalProxy();
|
||||
else
|
||||
{
|
||||
string typeName =
|
||||
proxyTypeName.Substring(0, proxyTypeName.IndexOf(",")).Trim();
|
||||
string assemblyName =
|
||||
proxyTypeName.Substring(proxyTypeName.IndexOf(",") + 1).Trim();
|
||||
_portal = (DataPortalClient.IDataPortalProxy)
|
||||
Activator.CreateInstance(assemblyName, typeName).Unwrap();
|
||||
}
|
||||
}
|
||||
return _portal;
|
||||
}
|
||||
}
|
||||
|
||||
#endregion
|
||||
|
||||
#region Security
|
||||
|
||||
private static System.Security.Principal.IPrincipal GetPrincipal()
|
||||
{
|
||||
if (ApplicationContext.AuthenticationType == "Windows")
|
||||
{
|
||||
// Windows integrated security
|
||||
return null;
|
||||
}
|
||||
else
|
||||
{
|
||||
// we assume using the CSLA framework security
|
||||
return ApplicationContext.User;
|
||||
}
|
||||
}
|
||||
|
||||
#endregion
|
||||
|
||||
#region Helper methods
|
||||
|
||||
private static bool RunLocal(MethodInfo method)
|
||||
{
|
||||
return Attribute.IsDefined(method, typeof(RunLocalAttribute), false);
|
||||
}
|
||||
|
||||
#endregion
|
||||
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,118 @@
|
||||
using System;
|
||||
|
||||
namespace Csla.DataPortalClient
|
||||
{
|
||||
/// <summary>
|
||||
/// Implements a data portal proxy to relay data portal
|
||||
/// calls to an application server hosted in COM+.
|
||||
/// </summary>
|
||||
public abstract class EnterpriseServicesProxy : DataPortalClient.IDataPortalProxy
|
||||
{
|
||||
/// <summary>
|
||||
/// Override this method to return a reference to
|
||||
/// the server-side COM+ (ServicedComponent) object
|
||||
/// implementing the data portal server functionality.
|
||||
/// </summary>
|
||||
protected abstract Server.Hosts.EnterpriseServicesPortal GetServerObject();
|
||||
|
||||
/// <summary>
|
||||
/// Called by <see cref="DataPortal" /> to create a
|
||||
/// new business object.
|
||||
/// </summary>
|
||||
/// <param name="objectType">Type of business object to create.</param>
|
||||
/// <param name="criteria">Criteria object describing business object.</param>
|
||||
/// <param name="context">
|
||||
/// <see cref="Server.DataPortalContext" /> object passed to the server.
|
||||
/// </param>
|
||||
public virtual Server.DataPortalResult Create(Type objectType, object criteria, Server.DataPortalContext context)
|
||||
{
|
||||
Server.Hosts.EnterpriseServicesPortal svc = GetServerObject();
|
||||
try
|
||||
{
|
||||
return svc.Create(objectType, criteria, context);
|
||||
}
|
||||
finally
|
||||
{
|
||||
if (svc != null)
|
||||
svc.Dispose();
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Called by <see cref="DataPortal" /> to load an
|
||||
/// existing business object.
|
||||
/// </summary>
|
||||
/// <param name="objectType">Type of business object to retrieve.</param>
|
||||
/// <param name="criteria">Criteria object describing business object.</param>
|
||||
/// <param name="context">
|
||||
/// <see cref="Server.DataPortalContext" /> object passed to the server.
|
||||
/// </param>
|
||||
public virtual Server.DataPortalResult Fetch(Type objectType, object criteria, Server.DataPortalContext context)
|
||||
{
|
||||
Server.Hosts.EnterpriseServicesPortal svc = GetServerObject();
|
||||
try
|
||||
{
|
||||
return svc.Fetch(objectType, criteria, context);
|
||||
}
|
||||
finally
|
||||
{
|
||||
if (svc != null)
|
||||
svc.Dispose();
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Called by <see cref="DataPortal" /> to update a
|
||||
/// business object.
|
||||
/// </summary>
|
||||
/// <param name="obj">The business object to update.</param>
|
||||
/// <param name="context">
|
||||
/// <see cref="Server.DataPortalContext" /> object passed to the server.
|
||||
/// </param>
|
||||
public virtual Server.DataPortalResult Update(object obj, Server.DataPortalContext context)
|
||||
{
|
||||
Server.Hosts.EnterpriseServicesPortal svc = GetServerObject();
|
||||
try
|
||||
{
|
||||
return svc.Update(obj, context);
|
||||
}
|
||||
finally
|
||||
{
|
||||
if (svc != null)
|
||||
svc.Dispose();
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Called by <see cref="DataPortal" /> to delete a
|
||||
/// business object.
|
||||
/// </summary>
|
||||
/// <param name="criteria">Criteria object describing business object.</param>
|
||||
/// <param name="context">
|
||||
/// <see cref="Server.DataPortalContext" /> object passed to the server.
|
||||
/// </param>
|
||||
public virtual Server.DataPortalResult Delete(object criteria, Server.DataPortalContext context)
|
||||
{
|
||||
Server.Hosts.EnterpriseServicesPortal svc = GetServerObject();
|
||||
try
|
||||
{
|
||||
return svc.Delete(criteria, context);
|
||||
}
|
||||
finally
|
||||
{
|
||||
if (svc != null)
|
||||
svc.Dispose();
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Get a value indicating whether this proxy will invoke
|
||||
/// a remote data portal server, or run the "server-side"
|
||||
/// data portal in the caller's process and AppDomain.
|
||||
/// </summary>
|
||||
public virtual bool IsServerRemote
|
||||
{
|
||||
get { return true; }
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,18 @@
|
||||
using System;
|
||||
|
||||
namespace Csla.DataPortalClient
|
||||
{
|
||||
/// <summary>
|
||||
/// Interface implemented by client-side
|
||||
/// data portal proxy objects.
|
||||
/// </summary>
|
||||
public interface IDataPortalProxy : Server.IDataPortalServer
|
||||
{
|
||||
/// <summary>
|
||||
/// Get a value indicating whether this proxy will invoke
|
||||
/// a remote data portal server, or run the "server-side"
|
||||
/// data portal in the caller's process and AppDomain.
|
||||
/// </summary>
|
||||
bool IsServerRemote { get;}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,82 @@
|
||||
using System;
|
||||
using Csla.Server;
|
||||
|
||||
namespace Csla.DataPortalClient
|
||||
{
|
||||
/// <summary>
|
||||
/// Implements a data portal proxy to relay data portal
|
||||
/// calls to an application server hosted locally
|
||||
/// in the client process and AppDomain.
|
||||
/// </summary>
|
||||
public class LocalProxy : DataPortalClient.IDataPortalProxy
|
||||
{
|
||||
private Server.IDataPortalServer _portal =
|
||||
new Server.DataPortal();
|
||||
|
||||
/// <summary>
|
||||
/// Called by <see cref="DataPortal" /> to create a
|
||||
/// new business object.
|
||||
/// </summary>
|
||||
/// <param name="objectType">Type of business object to create.</param>
|
||||
/// <param name="criteria">Criteria object describing business object.</param>
|
||||
/// <param name="context">
|
||||
/// <see cref="Server.DataPortalContext" /> object passed to the server.
|
||||
/// </param>
|
||||
public DataPortalResult Create(
|
||||
Type objectType, object criteria, DataPortalContext context)
|
||||
{
|
||||
return _portal.Create(objectType, criteria, context);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Called by <see cref="DataPortal" /> to load an
|
||||
/// existing business object.
|
||||
/// </summary>
|
||||
/// <param name="objectType">Type of business object to retrieve.</param>
|
||||
/// <param name="criteria">Criteria object describing business object.</param>
|
||||
/// <param name="context">
|
||||
/// <see cref="Server.DataPortalContext" /> object passed to the server.
|
||||
/// </param>
|
||||
public DataPortalResult Fetch(Type objectType, object criteria, DataPortalContext context)
|
||||
{
|
||||
return _portal.Fetch(objectType, criteria, context);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Called by <see cref="DataPortal" /> to update a
|
||||
/// business object.
|
||||
/// </summary>
|
||||
/// <param name="obj">The business object to update.</param>
|
||||
/// <param name="context">
|
||||
/// <see cref="Server.DataPortalContext" /> object passed to the server.
|
||||
/// </param>
|
||||
public DataPortalResult Update(object obj, DataPortalContext context)
|
||||
{
|
||||
return _portal.Update(obj, context);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Called by <see cref="DataPortal" /> to delete a
|
||||
/// business object.
|
||||
/// </summary>
|
||||
/// <param name="criteria">Criteria object describing business object.</param>
|
||||
/// <param name="context">
|
||||
/// <see cref="Server.DataPortalContext" /> object passed to the server.
|
||||
/// </param>
|
||||
public DataPortalResult Delete(object criteria, DataPortalContext context)
|
||||
{
|
||||
return _portal.Delete(criteria, context);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Get a value indicating whether this proxy will invoke
|
||||
/// a remote data portal server, or run the "server-side"
|
||||
/// data portal in the caller's process and AppDomain.
|
||||
/// </summary>
|
||||
public bool IsServerRemote
|
||||
{
|
||||
get { return false; }
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,150 @@
|
||||
using System;
|
||||
using System.Configuration;
|
||||
using System.Collections;
|
||||
using System.Threading;
|
||||
using System.Reflection;
|
||||
using System.Runtime.Remoting;
|
||||
using System.Runtime.Remoting.Channels;
|
||||
using System.Runtime.Remoting.Channels.Http;
|
||||
|
||||
namespace Csla.DataPortalClient
|
||||
{
|
||||
/// <summary>
|
||||
/// Implements a data portal proxy to relay data portal
|
||||
/// calls to a remote application server by using the
|
||||
/// .NET Remoting technology.
|
||||
/// </summary>
|
||||
public class RemotingProxy : DataPortalClient.IDataPortalProxy
|
||||
{
|
||||
|
||||
#region Configure Remoting
|
||||
|
||||
/// <summary>
|
||||
/// Configure .NET Remoting to use a binary
|
||||
/// serialization technology even when using
|
||||
/// the HTTP channel. Also ensures that the
|
||||
/// user's Windows credentials are passed to
|
||||
/// the server appropriately.
|
||||
/// </summary>
|
||||
static RemotingProxy()
|
||||
{
|
||||
// create and register a custom HTTP channel
|
||||
// that uses the binary formatter
|
||||
Hashtable properties = new Hashtable();
|
||||
properties["name"] = "HttpBinary";
|
||||
|
||||
if (ApplicationContext.AuthenticationType == "Windows" || AlwaysImpersonate)
|
||||
{
|
||||
// make sure we pass the user's Windows credentials
|
||||
// to the server
|
||||
properties["useDefaultCredentials"] = true;
|
||||
}
|
||||
|
||||
BinaryClientFormatterSinkProvider
|
||||
formatter = new BinaryClientFormatterSinkProvider();
|
||||
HttpChannel channel = new HttpChannel(properties, formatter, null);
|
||||
ChannelServices.RegisterChannel(channel, EncryptChannel);
|
||||
}
|
||||
|
||||
private static bool AlwaysImpersonate
|
||||
{
|
||||
get
|
||||
{
|
||||
bool result =
|
||||
(ConfigurationManager.AppSettings["AlwaysImpersonate"] == "true");
|
||||
return result;
|
||||
}
|
||||
}
|
||||
|
||||
private static bool EncryptChannel
|
||||
{
|
||||
get
|
||||
{
|
||||
bool encrypt =
|
||||
(ConfigurationManager.AppSettings["CslaEncryptRemoting"] == "true");
|
||||
return encrypt;
|
||||
}
|
||||
}
|
||||
|
||||
#endregion
|
||||
|
||||
private Server.IDataPortalServer _portal;
|
||||
|
||||
private Server.IDataPortalServer Portal
|
||||
{
|
||||
get
|
||||
{
|
||||
if (_portal == null)
|
||||
_portal = (Server.IDataPortalServer)Activator.GetObject(
|
||||
typeof(Server.Hosts.RemotingPortal),
|
||||
ApplicationContext.DataPortalUrl.ToString());
|
||||
return _portal;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Called by <see cref="DataPortal" /> to create a
|
||||
/// new business object.
|
||||
/// </summary>
|
||||
/// <param name="objectType">Type of business object to create.</param>
|
||||
/// <param name="criteria">Criteria object describing business object.</param>
|
||||
/// <param name="context">
|
||||
/// <see cref="Server.DataPortalContext" /> object passed to the server.
|
||||
/// </param>
|
||||
public Server.DataPortalResult Create(
|
||||
Type objectType, object criteria, Server.DataPortalContext context)
|
||||
{
|
||||
return Portal.Create(objectType, criteria, context);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Called by <see cref="DataPortal" /> to load an
|
||||
/// existing business object.
|
||||
/// </summary>
|
||||
/// <param name="objectType">Type of business object to retrieve.</param>
|
||||
/// <param name="criteria">Criteria object describing business object.</param>
|
||||
/// <param name="context">
|
||||
/// <see cref="Server.DataPortalContext" /> object passed to the server.
|
||||
/// </param>
|
||||
public Server.DataPortalResult Fetch(Type objectType, object criteria, Server.DataPortalContext context)
|
||||
{
|
||||
return Portal.Fetch(objectType, criteria, context);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Called by <see cref="DataPortal" /> to update a
|
||||
/// business object.
|
||||
/// </summary>
|
||||
/// <param name="obj">The business object to update.</param>
|
||||
/// <param name="context">
|
||||
/// <see cref="Server.DataPortalContext" /> object passed to the server.
|
||||
/// </param>
|
||||
public Server.DataPortalResult Update(object obj, Server.DataPortalContext context)
|
||||
{
|
||||
return Portal.Update(obj, context);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Called by <see cref="DataPortal" /> to delete a
|
||||
/// business object.
|
||||
/// </summary>
|
||||
/// <param name="criteria">Criteria object describing business object.</param>
|
||||
/// <param name="context">
|
||||
/// <see cref="Server.DataPortalContext" /> object passed to the server.
|
||||
/// </param>
|
||||
public Server.DataPortalResult Delete(object criteria, Server.DataPortalContext context)
|
||||
{
|
||||
return Portal.Delete(criteria, context);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Get a value indicating whether this proxy will invoke
|
||||
/// a remote data portal server, or run the "server-side"
|
||||
/// data portal in the caller's process and AppDomain.
|
||||
/// </summary>
|
||||
public bool IsServerRemote
|
||||
{
|
||||
get { return true; }
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,177 @@
|
||||
using System;
|
||||
using System.IO;
|
||||
using System.Runtime.Serialization.Formatters.Binary;
|
||||
using Csla.WebServiceHost;
|
||||
|
||||
namespace Csla.DataPortalClient
|
||||
{
|
||||
/// <summary>
|
||||
/// Implements a data portal proxy to relay data portal
|
||||
/// calls to a remote application server by using
|
||||
/// Web services.
|
||||
/// </summary>
|
||||
public class WebServicesProxy : DataPortalClient.IDataPortalProxy
|
||||
{
|
||||
private WebServiceHost.WebServicePortal GetPortal()
|
||||
{
|
||||
WebServiceHost.WebServicePortal wsvc =
|
||||
new WebServiceHost.WebServicePortal();
|
||||
wsvc.Url = ApplicationContext.DataPortalUrl.ToString();
|
||||
return wsvc;
|
||||
}
|
||||
|
||||
|
||||
/// <summary>
|
||||
/// Called by <see cref="DataPortal" /> to create a
|
||||
/// new business object.
|
||||
/// </summary>
|
||||
/// <param name="objectType">Type of business object to create.</param>
|
||||
/// <param name="criteria">Criteria object describing business object.</param>
|
||||
/// <param name="context">
|
||||
/// <see cref="Server.DataPortalContext" /> object passed to the server.
|
||||
/// </param>
|
||||
public Server.DataPortalResult Create(
|
||||
Type objectType, object criteria, Server.DataPortalContext context)
|
||||
{
|
||||
object result;
|
||||
Csla.Server.Hosts.WebServicePortal.CreateRequest
|
||||
request = new Csla.Server.Hosts.WebServicePortal.CreateRequest();
|
||||
request.ObjectType = objectType;
|
||||
request.Criteria = criteria;
|
||||
request.Context = context;
|
||||
|
||||
using (WebServiceHost.WebServicePortal wsvc = GetPortal())
|
||||
{
|
||||
byte[] rd = Serialize(request);
|
||||
byte[] rp = wsvc.Create(rd);
|
||||
result = Deserialize(rp);
|
||||
}
|
||||
|
||||
if (result is Exception)
|
||||
throw (Exception)result;
|
||||
return (Server.DataPortalResult)result;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Called by <see cref="DataPortal" /> to load an
|
||||
/// existing business object.
|
||||
/// </summary>
|
||||
/// <param name="objectType">Type of business object to retrieve.</param>
|
||||
/// <param name="criteria">Criteria object describing business object.</param>
|
||||
/// <param name="context">
|
||||
/// <see cref="Server.DataPortalContext" /> object passed to the server.
|
||||
/// </param>
|
||||
public Server.DataPortalResult Fetch(
|
||||
Type objectType, object criteria, Server.DataPortalContext context)
|
||||
{
|
||||
object result;
|
||||
Server.Hosts.WebServicePortal.FetchRequest request =
|
||||
new Server.Hosts.WebServicePortal.FetchRequest();
|
||||
request.ObjectType = objectType;
|
||||
request.Criteria = criteria;
|
||||
request.Context = context;
|
||||
|
||||
using (WebServiceHost.WebServicePortal wsvc = GetPortal())
|
||||
{
|
||||
result = Deserialize(wsvc.Fetch(Serialize(request)));
|
||||
}
|
||||
|
||||
if (result is Exception)
|
||||
throw (Exception)result;
|
||||
return (Server.DataPortalResult)result;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Called by <see cref="DataPortal" /> to update a
|
||||
/// business object.
|
||||
/// </summary>
|
||||
/// <param name="obj">The business object to update.</param>
|
||||
/// <param name="context">
|
||||
/// <see cref="Server.DataPortalContext" /> object passed to the server.
|
||||
/// </param>
|
||||
public Server.DataPortalResult Update(object obj, Server.DataPortalContext context)
|
||||
{
|
||||
object result;
|
||||
Server.Hosts.WebServicePortal.UpdateRequest request = new Server.Hosts.WebServicePortal.UpdateRequest();
|
||||
request.Object = obj;
|
||||
request.Context = context;
|
||||
|
||||
using (WebServiceHost.WebServicePortal wsvc = GetPortal())
|
||||
{
|
||||
result = Deserialize(wsvc.Update(Serialize(request)));
|
||||
}
|
||||
|
||||
if (result is Exception)
|
||||
throw (Exception)result;
|
||||
return (Server.DataPortalResult)result;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Called by <see cref="DataPortal" /> to delete a
|
||||
/// business object.
|
||||
/// </summary>
|
||||
/// <param name="criteria">Criteria object describing business object.</param>
|
||||
/// <param name="context">
|
||||
/// <see cref="Server.DataPortalContext" /> object passed to the server.
|
||||
/// </param>
|
||||
public Server.DataPortalResult Delete(object criteria, Server.DataPortalContext context)
|
||||
{
|
||||
object result;
|
||||
Server.Hosts.WebServicePortal.DeleteRequest request = new Server.Hosts.WebServicePortal.DeleteRequest();
|
||||
request.Criteria = criteria;
|
||||
request.Context = context;
|
||||
|
||||
using (WebServiceHost.WebServicePortal wsvc = GetPortal())
|
||||
{
|
||||
result = Deserialize(wsvc.Delete(Serialize(request)));
|
||||
}
|
||||
|
||||
if (result is Exception)
|
||||
throw (Exception)result;
|
||||
return (Server.DataPortalResult)result;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Get a value indicating whether this proxy will invoke
|
||||
/// a remote data portal server, or run the "server-side"
|
||||
/// data portal in the caller's process and AppDomain.
|
||||
/// </summary>
|
||||
public bool IsServerRemote
|
||||
{
|
||||
get { return true; }
|
||||
}
|
||||
|
||||
|
||||
#region Helper functions
|
||||
|
||||
private static byte[] Serialize(object obj)
|
||||
{
|
||||
if (obj != null)
|
||||
{
|
||||
using (MemoryStream buffer = new MemoryStream())
|
||||
{
|
||||
BinaryFormatter formatter = new BinaryFormatter();
|
||||
formatter.Serialize(buffer, obj);
|
||||
return buffer.ToArray();
|
||||
}
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
private static object Deserialize(byte[] obj)
|
||||
{
|
||||
if (obj != null)
|
||||
{
|
||||
using (MemoryStream buffer = new MemoryStream(obj))
|
||||
{
|
||||
BinaryFormatter formatter = new BinaryFormatter();
|
||||
return formatter.Deserialize(buffer);
|
||||
}
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
#endregion
|
||||
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user