/// <summary>
/// Return an execution from the cluster and give it back to the correct domain.
/// </summary>
/// <param name="result">The Result object of the execution.</param>
public static void ReturnExecution(ExecutionResult result)
{
DomainProxy proxy = proxies[result.DomainKey];
Node executor = Nodes.GetNodeByID(result.ExecutingNodeID);
proxy.ReturnExecution(result.ContextID, executor, result.Result);
}
/// <summary>
/// Unloads and destroys the domain with the specified Key. Also deletes any assemblies associated with the domain.
/// </summary>
/// <param name="domainKey">The Key of the domain to be destroyed.</param>
/// <param name="instanceSignal">Specefies whether or not the Destroy domain signal came from a local instance.</param>
public static void DestroyDomain(string domainKey, bool instanceSignal = false)
{
if (!domains.ContainsKey(domainKey))
{
return;
}
AppDomain domain = domains[domainKey];
DomainProxy proxy = proxies[domainKey];
if (instanceSignal)
{
Nodes.UnloadDomain(domainKey, proxy.GetAssemblyNames());
return;
}
foreach (string assem in proxy.GetAssemblyNames())
{
if (assemblies.ContainsKey(assem))
{
assemblies.Remove(assem);
}
}
proxies.Remove(domainKey);
domains.Remove(domainKey);
Action <AppDomain> final = finalUnload;
final.BeginInvoke(domain, null, null);
}
/// <summary>
/// Tells whether the assembly with the given name is loaded into the domain with the given Key.
/// Will return false if the given domain Key does not correspond to a currently loaded domain.
/// </summary>
/// <param name="domainKey">The Key of the domain to check in.</param>
/// <param name="assemblyName">The name of the assembly to check for.</param>
/// <returns>Whether or not the domain has the assembly.</returns>
public static bool DomainHasAssembly(string domainKey, string assemblyName)
{
if (!HasDomain(domainKey))
{
return(false);
}
DomainProxy proxy = proxies[domainKey];
return(proxy.HasAssembly(assemblyName));
}
/// <summary>
/// Startup an assembly into the specefied domain.
/// </summary>
/// <param name="domainKey">The string Key of the domain to be loaded into.</param>
/// <param name="assemblyStream">The COFF byte array of the assembly.</param>
public static void LoadAssemblyIntoDomain(string domainKey, byte[] assemblyStream)
{
DomainProxy proxy = proxies[domainKey];
string assemblyName = proxy.LoadAssembly(assemblyStream);
if (assemblies.ContainsKey(assemblyName))
{
assemblies.Remove(assemblyName);
}
assemblies.Add(assemblyName, assemblyStream);
}
/// <summary>
/// Delivers a user sent message to the correct domain. If the correct domain is not valid, an error is logged.
/// </summary>
/// <param name="message">The UserMessage object for the message.</param>
public static void DeliverMessage(UserMessage message)
{
if (domains.ContainsKey(message.DomainKey))
{
DomainProxy proxy = proxies[message.DomainKey];
Node node = Nodes.GetNodeByID(message.Sender);
proxy.DeliverMessage(message.Message, node);
}
else
{
Log.Error("No domain with Key: " + message.DomainKey + " was found to deliver message: \"" + message.Message + "\" from: NodeID: " + message.Sender);
}
}
/// <summary>
/// Retrieve the COFF based images of all assemblies loaded into a domain along with the assemblies full names as keys.
/// </summary>
/// <param name="domainKey">The domain key associated with the requested domain.</param>
/// <returns>The COFF based images of all assemblies loaded into a domain along with their full names as keys.</returns>
public static Dictionary <string, byte[]> GetDomainAssemblies(string domainKey)
{
Dictionary <string, byte[]> assemblyListing = new Dictionary <string, byte[]>();
if (!HasDomain(domainKey))
{
return(assemblyListing);
}
DomainProxy proxy = proxies[domainKey];
string[] assemblyNames = proxy.GetAssemblyNames();
foreach (string name in assemblyNames)
{
if (assemblies.ContainsKey(name))
{
assemblyListing.Add(name, assemblies[name]);
}
}
return(assemblyListing);
}
/// <summary>
/// Creates a new application domain, and adds it to the store. If the domain already exists, does nothing.
/// </summary>
public static void CreateDomain(string domainKey)
{
//if we already have the domain it doesnt need to be created.
if (domains.ContainsKey(domainKey))
{
return;
}
AppDomain newDomain = AppDomain.CreateDomain(domainKey);
//preload assemblies
foreach (string item in Config.DomainPreloads)
{
newDomain.Load(item);
}
//create the domain proxy
DomainProxy proxy = (DomainProxy)newDomain.CreateInstanceAndUnwrap(typeof(DomainProxy).Assembly.FullName, typeof(DomainProxy).FullName);
//create the cluster proxy
ClusterProxy cproxy = new ClusterProxy();
proxy.ConfigureCluster(cproxy, domainKey);
//add the data to the lookup tables
proxies.Add(domainKey, proxy);
domains.Add(domainKey, newDomain);
}
/// <summary>
/// Execute an incoming job according to the passed in execution context.
/// </summary>
/// <param name="context">The context of the job.</param>
/// <returns>The result of the job serialized for transport.</returns>
public static byte[] ExecuteIncoming(ExecutionContext context)
{
DomainProxy proxy = proxies[context.DomainKey];
return(proxy.ExecuteIncoming(context.MethodName, context.TypeName, context.AssemblyName, context.Parameter));
}
/// <summary>
/// Execute the startup procedure on the presto instance in the specefied domain.
/// </summary>
/// <param name="domainKey">The Key of the domain to execute in.</param>
public static void ExecuteStartup(string domainKey)
{
DomainProxy proxy = proxies[domainKey];
proxy.ExecuteInstance();
}
