public static ICommand CreateInstance(ConfigurationAction action)
{
log.Debug(m => m("Creating command instance for action '{0}'...", action));
var command = default(ICommand);
switch (action)
{
case ConfigurationAction.Console:
command = new ConsoleCommand();
break;
case ConfigurationAction.Install:
command = new InstallCommand();
break;
case ConfigurationAction.Uninstall:
command = new UninstallCommand();
break;
case ConfigurationAction.Run:
command = new RunCommand();
break;
}
log.Debug(m => m("Done creating command instance for action '{0}'.", action));
return(command);
}
public void ConfigureFor()
{
ConfigurationAction configurationAction = s => s.InThreadScope();
this.testee.ConfigureFor <int>(configurationAction);
this.conventionBindingBuilderMock.Verify(b => b.ConfigureFor <int>(configurationAction));
}
/// <summary>根据约定绑定</summary>
private void BindByConvention <T>(Assembly assembly, IFromSyntax fromSyntax, Func <Type, bool> filter,
ConfigurationAction configuration)
{
fromSyntax.From(assembly)
.IncludingNonePublicTypes()
.SelectAllClasses()
.InheritedFrom <T>()
.Where(filter)
.BindDefaultInterfaces()
.Configure(configuration);
}
public void ConfigureFor <T>(ConfigurationAction configuration)
{
if (configuration == null)
{
throw new ArgumentNullException("configuration");
}
var type = typeof(T);
foreach (var syntax in this.bindingSyntax[type])
{
configuration(syntax);
}
}
/// <summary>
/// Configures the bindings using the specified configuration.
/// </summary>
/// <param name="configuration">The configuration that is applies to the bindings.</param>
public void Configure(ConfigurationAction configuration)
{
if (configuration == null)
{
throw new ArgumentNullException("configuration");
}
foreach (var bindingSyntaxEntry in this.bindingSyntax)
{
foreach (var syntax in bindingSyntaxEntry.Value)
{
configuration(syntax);
}
}
}
public override bool Compatible(ConfigurationAction action)
{
if (!action.ModifyingContainer.Name.Equals(this.ConstrainedContainer.Name) || !action.ServerName.Equals(this.ServerName))
{
return(true);
}
if (Type == LocationConstraintType.Replicate && action.GetType() == typeof(RemoveSecondaryServer))
{
return(false);
}
else if (Type == LocationConstraintType.DoNotReplicate && (action.GetType() == typeof(AddPrimaryServer) || action.GetType() == typeof(AddSecondaryServer) || action.GetType() == typeof(MakeSoloPrimaryServer)))
{
return(false);
}
return(true);
}
private static string ReconfigActionText(ConfigurationAction act)
{
string text;
switch (act.GetType().Name)
{
case "MakeSoloPrimaryServer": text = "Move the primary site to " + SiteName(act.ServerName); break;
case "AddPrimaryServer": text = "Add a primary replica in " + SiteName(act.ServerName); break;
case "AddSecondaryServer": text = "Add a secondary replica in " + SiteName(act.ServerName); break;
case "AdjustSyncPeriod": text = "Reduce the sync period for site " + SiteName(act.ServerName); break;
case "DowngradePrimary": text = "Downgrade from primary to secondary site " + SiteName(act.ServerName); break;
case "RemoveSecondaryServer": text = "Remove the secondary replica in " + SiteName(act.ServerName); break;
default: text = act.GetType().Name + " " + SiteName(act.ServerName); break;
}
return(text);
}
public DatabaseBindingGatherer Configure(ConfigurationAction action)
{
_options.ConfigurationAction = action;
return new DatabaseBindingGatherer(_options);
}
internal override void Apply(List <ConfigurationAction> newActions, List <ConfigurationConstraint> constraints, SortedSet <ServiceLevelAgreement> SLAs, Dictionary <string, ClientUsageData> clientData)
{
if (Type == LocationConstraintType.Replicate)
{
//first, we check if the tablet is already replicated in the particular server or not.
if (Configuration.SecondaryServers.Contains(ServerName) || Configuration.PrimaryServers.Contains(ServerName))
{
//the constraint is already in place. we just have to make sure that no new action in actions list remove it.
ConfigurationAction toRemove = null;
foreach (ConfigurationAction action in newActions)
{
if (action.GetType() == typeof(RemoveSecondaryServer) && action.ServerName.Equals(this.ServerName))
{
toRemove = action;
break;
}
}
if (toRemove != null)
{
newActions.Remove(toRemove);
return;
}
}
else
{
//the constraint is not being enforced. We need to enforce it by creating a new replica.
//First we see if the new replica is being created in the new actions
foreach (ConfigurationAction action in newActions)
{
if ((action.GetType() == typeof(AddPrimaryServer) || action.GetType() == typeof(AddSecondaryServer) || action.GetType() == typeof(MakeSoloPrimaryServer)) && action.ServerName.Equals(this.ServerName))
{
return;
}
}
//we could not find an action enforcing the this constraint.
//Hence, we add an action with the minimum cost ourselves. I.e., adding secondary server.
newActions.Add(new AddSecondaryServer(Configuration.Name, ServerName, 0, null, ConfigurationActionSource.Constraint));
}
}
else
{
//we need to avoid replicating in a particular server.
//first, we check if the tablet is already replicated in the particular server or not.
if (Configuration.SecondaryServers.Contains(ServerName) || Configuration.PrimaryServers.Contains(ServerName))
{
//we have to enforce the constraint because it is already being replicated.
//We first check to see if there exists a new action removing the container or not.
List <ConfigurationAction> toRemove = new List <ConfigurationAction>();
foreach (ConfigurationAction action in newActions)
{
if (action.ModifyingContainer.Name.Equals(ConstrainedContainer.Name) && action.ServerName.Equals(this.ServerName))
{
toRemove.Add(action);
}
}
//we have to remove all actions on a particular container of this server
newActions.RemoveAll(o => toRemove.Contains(o));
//we finally add a remove action.
if (Configuration.PrimaryServers.Contains(ServerName))
{
//we first downgrade the primary
newActions.Add(new DowngradePrimary(Configuration.Name, ServerName, 0, null, ConfigurationActionSource.Constraint));
}
//we totally remove the replica
newActions.Add(new RemoveSecondaryServer(Configuration.Name, ServerName, 0, null, ConfigurationActionSource.Constraint));
}
else
{
//The container is not being replicated in the server.
//We just need to make sure that a new action does not replicate it.
List <ConfigurationAction> toRemove = new List <ConfigurationAction>();
foreach (ConfigurationAction action in newActions)
{
if (action.ModifyingContainer.Name.Equals(ConstrainedContainer.Name) && action.ServerName.Equals(this.ServerName))
{
toRemove.Add(action);
}
}
//we have to remove all actions on this container
newActions.RemoveAll(o => toRemove.Contains(o));
}
}
}
/// <summary> /// Checks whether the given action is compatible (applicable) with this constraint. /// </summary> /// <param name="action"></param> /// <returns>true if the action is compatible (applicable) with this constraint, false otherwise.</returns> public abstract bool Compatible(ConfigurationAction action);
public override bool Compatible(ConfigurationAction action)
{
// TODO: not implemented.
return(true);
}
/// <summary>
/// Configures the bindings with the specified configuration.
/// </summary>
/// <param name="configuration">The configuration.</param>
/// <returns>The fluent syntax.</returns>
public IConfigureForSyntax Configure(ConfigurationAction configuration)
{
this.bindingBuilder.Configure(configuration);
return(this);
}
public override bool Compatible(ConfigurationAction action)
{
return(true);
}
private void Register(string assemlyMask, string nameEndsWith, ConfigurationAction configurationAction)
{
Kernel.Bind(x => x.FromAssembliesMatching(assemlyMask).Select(t => t.FullName.EndsWith(nameEndsWith)).BindDefaultInterface().Configure(configurationAction));
}
private ICommand createCommand(ConfigurationAction action)
{
return(CommandFactory.CreateInstance(action));
}
