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This commit is contained in:
Ahmed Zamil
2019-11-10 12:41:31 +03:00
parent 8d06fd05ad
commit 5e87ea5247
41 changed files with 2076 additions and 431 deletions
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227
Esiur/Resource/Warehouse.cs
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@ -32,6 +32,8 @@ using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Esiur.Net.IIP;
using System.Text.RegularExpressions;
namespace Esiur.Resource
{
@ -40,13 +42,13 @@ namespace Esiur.Resource
{
//static byte prefixCounter;
static AutoList<IResource, Instance> stores = new AutoList<IResource, Instance>(null);
static Dictionary<uint, IResource> resources = new Dictionary<uint, IResource>();
static AutoList<IStore, Instance> stores = new AutoList<IStore, Instance>(null);
static Dictionary<uint, WeakReference<IResource>> resources = new Dictionary<uint, WeakReference<IResource>>();
static uint resourceCounter = 0;
static KeyList<Guid, ResourceTemplate> templates = new KeyList<Guid, ResourceTemplate>();
static bool storeIsOpen = false;
static bool warehouseIsOpen = false;
public delegate void StoreConnectedEvent(IStore store, string name);
public delegate void StoreDisconnectedEvent(IStore store);
@ -54,7 +56,15 @@ namespace Esiur.Resource
public static event StoreConnectedEvent StoreConnected;
public static event StoreDisconnectedEvent StoreDisconnected;
public static KeyList<string, Func<IStore>> Protocols { get; } = new KeyList<string, Func<IStore>>();
public static KeyList<string, Func<IStore>> Protocols { get; } = getSupportedProtocols();
static KeyList<string, Func<IStore>> getSupportedProtocols()
{
var rt = new KeyList<string, Func<IStore>>();
rt.Add("iip", () => new DistributedConnection());
return rt;
}
/// <summary>
/// Get a store by its name.
@ -77,7 +87,13 @@ namespace Esiur.Resource
public static AsyncReply<IResource> Get(uint id)
{
if (resources.ContainsKey(id))
return new AsyncReply<IResource>(resources[id]);
{
IResource r;
if (resources[id].TryGetTarget(out r))
return new AsyncReply<IResource>(r);
else
return new AsyncReply<IResource>(null);
}
else
return new AsyncReply<IResource>(null);
}
@ -109,7 +125,11 @@ namespace Esiur.Resource
var rBag = new AsyncBag<bool>();
foreach (var rk in resources)
rBag.Add(rk.Value.Trigger(ResourceTrigger.SystemInitialized));
{
IResource r;
if (rk.Value.TryGetTarget(out r))
rBag.Add(r.Trigger(ResourceTrigger.SystemInitialized));
}
rBag.Seal();
@ -123,7 +143,7 @@ namespace Esiur.Resource
}
rt.Trigger(true);
storeIsOpen = true;
warehouseIsOpen = true;
});
});
@ -142,15 +162,30 @@ namespace Esiur.Resource
var bag = new AsyncBag<bool>();
foreach (var resource in resources.Values)
if (!(resource is IStore))
bag.Add(resource.Trigger(ResourceTrigger.Terminate));
{
IResource r;
if (resource.TryGetTarget(out r))
{
if (!(r is IStore))
bag.Add(r.Trigger(ResourceTrigger.Terminate));
}
}
foreach (var store in stores)
bag.Add(store.Trigger(ResourceTrigger.Terminate));
foreach (var resource in resources.Values)
if (!(resource is IStore))
bag.Add(resource.Trigger(ResourceTrigger.SystemTerminated));
{
IResource r;
if (resource.TryGetTarget(out r))
{
if (!(r is IStore))
bag.Add(r.Trigger(ResourceTrigger.SystemTerminated));
}
}
foreach (var store in stores)
bag.Add(store.Trigger(ResourceTrigger.SystemTerminated));
@ -174,7 +209,8 @@ namespace Esiur.Resource
}
private static IResource[] QureyIn(string[] path, int index, AutoList<IResource, Instance> resources)
/*
private static IResource[] QureyIn(string[] path, int index, IEnumerable<IResource> resources)// AutoList<IResource, Instance> resources)
{
var rt = new List<IResource>();
@ -191,18 +227,16 @@ namespace Esiur.Resource
else
foreach (IResource child in resources)
if (child.Instance.Name == path[index])
rt.AddRange(QureyIn(path, index+1, child.Instance.Children));
rt.AddRange(QureyIn(path, index+1, child.Instance.Children<IResource>()));
return rt.ToArray();
}
public static AsyncReply<IResource[]> Query(string path)
{
if (path == null || path == "")
{
var roots = stores.Where(s => s.Instance.Parents.Count == 0).ToArray();
var roots = stores.Where(s => s.Instance.Parents<IResource>().Count() == 0).ToArray();
return new AsyncReply<IResource[]>(roots);
}
else
@ -229,6 +263,51 @@ namespace Esiur.Resource
}
}
*/
public static async Task<IResource[]> Query(string path)
{
var rt = new AsyncReply<IResource[]>();
var p = path.Trim().Split('/');
IResource resource;
foreach (var store in stores)
if (p[0] == store.Instance.Name)
{
if (p.Length == 1)
return new IResource[] { store };
var res = await store.Get(String.Join("/", p.Skip(1).ToArray()));
if (res != null)
return new IResource[] { res };
resource = store;
for (var i = 1; i < p.Length; i++)
{
var children = await resource.Instance.Children<IResource>(p[i]);
if (children.Length > 0)
{
if (i == p.Length - 1)
return children;
else
resource = children[0];
}
else
break;
}
return null;
}
return null;
}
/// <summary>
/// Get a resource by its path.
@ -236,38 +315,15 @@ namespace Esiur.Resource
/// </summary>
/// <param name="path"></param>
/// <returns>Resource instance.</returns>
public static AsyncReply<IResource> Get(string path, Structure attributes = null, IResource parent = null, IPermissionsManager manager = null)
public static AsyncReply<IResource> Get(string path, object attributes = null, IResource parent = null, IPermissionsManager manager = null)
{
var p = path.Split('/');
IResource res;
foreach(IStore d in stores)
if (p[0] == d.Instance.Name)
{
var i = 1;
res = d;
while(p.Length > i)
{
var si = i;
foreach (IResource r in res.Instance.Children)
if (r.Instance.Name == p[i])
{
i++;
res = r;
break;
}
if (si == i)
// not found, ask the store
return d.Get(path.Substring(p[0].Length + 1));
}
return new AsyncReply<IResource>(res);
}
var rt = new AsyncReply<IResource>();
// Should we create a new store ?
if (path.Contains("://"))
{
var url = path.Split(new string[] { "://" }, 2, StringSplitOptions.None);
@ -275,17 +331,18 @@ namespace Esiur.Resource
var pathname = string.Join("/", url[1].Split(new char[] { '/' }).Skip(1));
var rt = new AsyncReply<IResource>();
if (Protocols.ContainsKey(url[0]))
{
var handler = Protocols[url[0]];
var store = handler();// Activator.CreateInstance(handler.GetType()) as IStore;
Put(store, url[0] + "://" + hostname, null, parent, null, 0, manager, attributes);
var store = handler();
Put(store, hostname, null, parent, null, 0, manager, attributes);
store.Trigger(ResourceTrigger.Open).Then(x => {
warehouseIsOpen = true;
if (pathname.Length > 0 && pathname != "")
store.Get(pathname).Then(r => {
rt.Trigger(r);
@ -296,13 +353,24 @@ namespace Esiur.Resource
rt.TriggerError(e);
Warehouse.Remove(store);
});
return rt;
}
return rt;
}
Query(path).ContinueWith(rs =>
{
// rt.TriggerError(new Exception());
if (rs.Result != null && rs.Result.Length > 0)
rt.Trigger(rs.Result[0]);
else
rt.Trigger(null);
});
return rt;
return new AsyncReply<IResource>(null);
}
/// <summary>
@ -312,12 +380,31 @@ namespace Esiur.Resource
/// <param name="name">Resource name.</param>
/// <param name="store">IStore that manages the resource. Can be null if the resource is a store.</param>
/// <param name="parent">Parent resource. if not presented the store becomes the parent for the resource.</param>
public static void Put(IResource resource, string name, IStore store = null, IResource parent = null, ResourceTemplate customTemplate = null, ulong age = 0, IPermissionsManager manager = null, Structure attributes = null)
public static void Put(IResource resource, string name, IStore store = null, IResource parent = null, ResourceTemplate customTemplate = null, ulong age = 0, IPermissionsManager manager = null, object attributes = null)
{
if (store == null)
{
// assign parent as a store
if (parent is IStore)
store = (IStore)parent;
// assign parent's store as a store
else if (parent != null)
store = parent.Instance.Store;
// assign self as a store (root store)
else if (resource is IStore)
{
store = (IStore)resource;
stores.Add(resource as IStore);
}
else
throw new Exception("Can't find a store for the resource.");
}
resource.Instance = new Instance(resourceCounter++, name, resource, store, customTemplate, age);
if (attributes != null)
resource.Instance.SetAttributes(attributes);
resource.Instance.SetAttributes(Structure.FromObject(attributes));
if (manager != null)
resource.Instance.Managers.Add(manager);
@ -325,6 +412,8 @@ namespace Esiur.Resource
if (store == parent)
parent = null;
/*
if (parent == null)
{
if (!(resource is IStore))
@ -332,20 +421,26 @@ namespace Esiur.Resource
}
else
parent.Instance.Children.Add(resource);
*/
if (resource is IStore)
{
stores.Add(resource as IStore);
if (resource is IStore)
StoreConnected?.Invoke(resource as IStore, name);
}
else
store.Put(resource);
resources.Add(resource.Instance.Id, resource);
if (storeIsOpen)
if (parent != null)
{
parent.Instance.Store.AddChild(parent, resource);
store.AddParent(resource, parent);
//store.AddChild(parent, resource);
}
resources.Add(resource.Instance.Id, new WeakReference<IResource>(resource));
if (warehouseIsOpen)
resource.Trigger(ResourceTrigger.Initialize);
}
@ -430,9 +525,17 @@ namespace Esiur.Resource
stores.Remove(resource as IStore);
// remove all objects associated with the store
var toBeRemoved = resources.Values.Where(x => x.Instance.Store == resource);
var toBeRemoved = resources.Values.Where(x => {
IResource r;
return x.TryGetTarget(out r) && r.Instance.Store == resource;
});
foreach (var o in toBeRemoved)
Remove(o);
{
IResource r;
if (o.TryGetTarget(out r))
Remove(r);
}
StoreDisconnected?.Invoke(resource as IStore);
}