/// <summary>
/// 根据插件的配置文件得到插件的描述。
/// </summary>
/// <param name="configFile">插件的置文件。</param>
/// <param name="owner">拥有此描述符的插件节点。</param>
/// <returns>插件的描述。</returns>
public static AddinDescriptor Parse(String configFile, AddinNode owner)
{
if (!File.Exists(configFile))
{
throw new FileNotFoundException(configFile);
}
XElement xml = XElement.Load(configFile)?.Element("Runtimes");
if (xml == null)
{
throw new FileLoadException("Invalid addin config file");
}
IEnumerable <XAttribute> referencesAttr = xml.Element("Assemblies")?.Elements("Reference")?.Attributes("Path");
String[] references = null;
if (referencesAttr != null && referencesAttr.Count() != 0)
{
references = referencesAttr.Select(x => x.Value).ToArray();
}
IEnumerable <XAttribute> dependenciesAttr = xml.Element("Dependencies")?.Elements("Dependency")?.Attributes("Path");
String[] dependencies = null;
if (dependenciesAttr != null && dependenciesAttr.Count() != 0)
{
dependencies = dependenciesAttr.Select(x => x.Value).ToArray();
}
return(new AddinDescriptor(xml.Attribute("Type")?.Value, owner, references, dependencies));
}
/// <summary>
/// 卸载插件。
/// </summary>
/// <param name="addinNode">插件树节点。</param>
public void Uninstall(AddinNode addinNode)
{
if (!_isInit)
{
throw new InvalidOperationException("Need initialize");
}
String addinConfigFile = addinNode.AddinConfigFile;
UninstalImpl(addinConfigFile);
}
/// <summary>
/// 初始化类型 Tumbler.Addin.Core.AddinDescriptor 实例。
/// </summary>
/// <param name="type">实现了IAddin接口的类型名称。</param>
/// <param name="owner">拥有此描述符的插件节点。</param>
/// <param name="references"></param>
/// <param name="depedencies"></param>
private AddinDescriptor(String type, AddinNode owner, String[] references, String[] depedencies)
{
if (String.IsNullOrWhiteSpace(type))
{
throw new ArgumentNullException("type");
}
if (owner == null)
{
throw new ArgumentNullException("owner");
}
Owner = owner;
Type = type;
References = references;
if (depedencies != null)
{
Dependencies = depedencies.Select(x => AddinTreeNode.CompletePath(x)).ToArray();
}
}
/// <summary>
/// 初始化插件状态。
/// </summary>
private void InitializeAddinState()
{
if (Dependencies == null)
{
return;
}
AddinState state;
AddinNode node = null;
for (Int32 i = 0; i < Dependencies.Length; i++)
{
node = AddinManager.Instance.GetNode(Dependencies[i]) as AddinNode;
if (node == null)
{
state = AddinState.Unknow;
}
else
{
state = node.Descriptor.IsValueCreated ? node.Descriptor.Value.Addin.State : AddinState.Unknow;
}
Addin.OnDependencyStateChanged(Dependencies[i], state);
}
}
