/// <summary>
/// Initializes a new instance of the <see cref="PartAppDomainHost"/> class.
/// </summary>
/// <param name="description">The description.</param>
public PartAppDomainHost(ActivationHostDescription description)
: base(description)
{
if (description == null)
{
throw new ArgumentNullException("description");
}
AppDomainSetup appDomainSetup = new AppDomainSetup();
appDomainSetup.ApplicationBase = description.HostWorkingDirectory;
appDomainSetup.PrivateBinPath = description.HostWorkingDirectory;
string configFilePath = Path.Combine(description.HostWorkingDirectory, description.ConfigFileBaseName);
configFilePath = Path.ChangeExtension(configFilePath, "config");
if (!File.Exists(configFilePath))
{
configFilePath = AppDomain.CurrentDomain.SetupInformation.ConfigurationFile;
}
appDomainSetup.ConfigurationFile = configFilePath;
this._appDomain = AppDomain.CreateDomain("Plugin_" + description.Id, AppDomain.CurrentDomain.Evidence, appDomainSetup);
AppDomain.CurrentDomain.UnhandledException += OnCurrentDomainUnhandledException;
}
/// <summary>
/// Initializes a new instance of the <see cref="PartActivationHostBase"/> class.
/// </summary>
/// <param name="description">The description.</param>
protected PartActivationHostBase(ActivationHostDescription description)
{
if (description == null)
{
throw new ArgumentNullException("description");
}
this.Description = description;
this.ActivatedTypes = new HashSet <Type>();
}
/// <summary>
/// Initializes a new instance of the <see cref="ActivationHostEventArgs"/> class.
/// </summary>
/// <param name="description">The description.</param>
/// <param name="cause">The cause.</param>
public ActivationHostEventArgs(ActivationHostDescription description, Exception cause)
{
if (description == null)
{
throw new ArgumentNullException("description");
}
Description = description;
Cause = cause;
}
private static IPartActivationHost CreateActivationHost(Type type, string configFileBaseName)
{
// use two variables to satisfy CA disposable object exception path....
PartActivationHostBase selectedHost = null;
PartActivationHostBase tempSelectedHost = null;
try
{
lock (_hosts)
{
// find an appropriate existing host if any...
var query = from host in _hosts
let workDirectory = Path.GetDirectoryName(type.Assembly.Location)
where host.ActivatedTypes.Contains(type) || host.Description.HostWorkingDirectory == workDirectory
select host;
tempSelectedHost = query.FirstOrDefault();
// if a host was found, return it...
if (tempSelectedHost != null)
{
selectedHost = tempSelectedHost;
tempSelectedHost = null;
return(selectedHost);
}
// if no host found, create a new one...
string location = Path.GetDirectoryName(type.Assembly.Location);
var description = new ActivationHostDescription(location, configFileBaseName);
tempSelectedHost = new PartAppDomainHost(description);
_hosts.Add(tempSelectedHost);
}
// start the host...
tempSelectedHost.Start();
selectedHost = tempSelectedHost;
tempSelectedHost = null;
}
finally
{
if (tempSelectedHost != null)
{
tempSelectedHost.Dispose();
}
}
return(selectedHost);
}
