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null-safety

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This commit is contained in:
Ahmed Zamil
2021-07-24 13:12:43 +03:00
parent 6be04c39ed
commit 614c6853e3
48 changed files with 3022 additions and 3320 deletions
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181
lib/src/Resource/Warehouse.dart
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@@ -22,6 +22,10 @@ SOFTWARE.
*/
import '../Core/AsyncException.dart';
import '../Core/ErrorType.dart';
import '../Core/ExceptionCode.dart';
import '../Data/AutoList.dart';
import 'FactoryEntry.dart';
import 'Template/TemplateType.dart';
@@ -41,8 +45,7 @@ import '../Net/IIP/DistributedConnection.dart';
// Centeral Resource Issuer
class Warehouse {
static AutoList<IResource, Instance> _stores =
new AutoList<IResource, Instance>(null);
static AutoList<IStore, Instance> _stores = AutoList<IStore, Instance>();
static Map<int, IResource> _resources = new Map<int, IResource>();
static int resourceCounter = 0;
@@ -74,8 +77,8 @@ class Warehouse {
/// </summary>
/// <param name="name">Store instance name</param>
/// <returns></returns>
static IStore getStore(String name) {
for (var s in _stores) if (s.instance.name == name) return s;
static IStore? getStore(String name) {
for (var s in _stores) if (s.instance?.name == name) return s;
return null;
}
@@ -84,11 +87,11 @@ class Warehouse {
/// </summary>
/// <param name="id">Instance Id</param>
/// <returns></returns>
static AsyncReply<IResource> getById(int id) {
static AsyncReply<IResource?> getById(int id) {
if (_resources.containsKey(id))
return new AsyncReply<IResource>.ready(_resources[id]);
return new AsyncReply<IResource?>.ready(_resources[id]);
else
return new AsyncReply<IResource>.ready(null);
return new AsyncReply<IResource?>.ready(null);
}
/// <summary>
@@ -106,20 +109,21 @@ class Warehouse {
var rt = new AsyncReply<bool>();
bag.then((x) {
for (var b in x)
if (!b) {
if (b == null || b == false) {
rt.trigger(false);
return;
}
var rBag = new AsyncBag<bool>();
for (var rk in _resources.keys)
rBag.add(_resources[rk].trigger(ResourceTrigger.SystemInitialized));
rBag.add((_resources[rk] as IResource)
.trigger(ResourceTrigger.SystemInitialized));
rBag.seal();
rBag.then((y) {
for (var b in y)
if (!b) {
if (b == null || b == false) {
rt.trigger(false);
return;
}
@@ -158,7 +162,7 @@ class Warehouse {
var rt = new AsyncReply<bool>();
bag.then((x) {
for (var b in x)
if (!b) {
if (b == null || b == false) {
rt.trigger(false);
return;
}
@@ -178,19 +182,21 @@ class Warehouse {
for (var child in resources) rt.add(child);
else
for (var child in resources)
if (child.instance.name == path[index]) rt.add(child);
if (child.instance?.name == path[index]) rt.add(child);
} else
for (var child in resources)
if (child.instance.name == path[index])
rt.addAll(qureyIn(path, index + 1, child.instance.children));
if (child.instance?.name == path[index])
rt.addAll(qureyIn(path, index + 1,
child.instance?.children as AutoList<IResource, Instance>));
return rt;
}
static AsyncReply<List<IResource>> query(String path) {
static AsyncReply<List<IResource>?> query(String? path) {
if (path == null || path == "") {
var roots = _stores.where((s) => s.instance.parents.length == 0).toList();
return new AsyncReply<List<IResource>>.ready(roots);
var roots =
_stores.where((s) => s.instance?.parents.length == 0).toList();
return new AsyncReply<List<IResource>?>.ready(roots);
} else {
var rt = new AsyncReply<List<IResource>>();
get(path).then((x) {
@@ -215,40 +221,46 @@ class Warehouse {
/// </summary>
/// <param name="path"></param>
/// <returns>Resource instance.</returns>
static AsyncReply<T> get<T extends IResource>(String path,
static AsyncReply<T?> get<T extends IResource>(String path,
[attributes = null,
IResource parent = null,
IPermissionsManager manager = null]) {
var rt = AsyncReply<T>();
IResource? parent = null,
IPermissionsManager? manager = null]) {
var rt = AsyncReply<T?>();
// Should we create a new store ?
if (_urlRegex.hasMatch(path)) {
var url = _urlRegex.allMatches(path).first;
if (protocols.containsKey(url[1])) {
var handler = protocols[url[1]];
var handler =
protocols[url[1]] as AsyncReply<IStore> Function(String, dynamic);
var getFromStore = () {
handler(url[2], attributes).then<IStore>((store) {
if (url[3].length > 0 && url[3] != "")
store.get(url[3]).then<dynamic>((r) {
rt.trigger(r);
}).error((e) => rt.triggerError(e));
else
rt.trigger(store as T);
}).error((e) {
rt.triggerError(e);
//Warehouse.remove(store);
});
handler(url[2] as String, attributes)
..then((store) {
if ((url[3] as String).length > 0 && url[3] != "")
store.get(url[3] as String)
..then((r) {
rt.trigger(r as T);
})
..error((e) => rt.triggerError(e));
else
rt.trigger(store as T);
})
..error((e) {
rt.triggerError(e);
//Warehouse.remove(store);
});
};
if (!_warehouseIsOpen)
open().then((v) {
if (v)
getFromStore();
else
rt.trigger(null);
});
open()
..then((v) {
if (v)
getFromStore();
else
rt.trigger(null);
});
else
getFromStore();
@@ -258,7 +270,7 @@ class Warehouse {
query(path).then((rs) {
if (rs != null && rs.length > 0)
rt.trigger(rs[0]);
rt.trigger(rs[0] as T);
else
rt.trigger(null);
});
@@ -342,14 +354,14 @@ class Warehouse {
/// <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>
static AsyncReply<T> put<T extends IResource>(String name, T resource,
[IStore store = null,
IResource parent = null,
TypeTemplate customTemplate = null,
static AsyncReply<T?> put<T extends IResource>(String name, T resource,
[IStore? store = null,
IResource? parent = null,
TypeTemplate? customTemplate = null,
int age = 0,
IPermissionsManager manager = null,
IPermissionsManager? manager = null,
attributes = null]) {
var rt = AsyncReply<T>();
var rt = AsyncReply<T?>();
if (resource.instance != null) {
rt.triggerError(Exception("Resource has a store."));
@@ -415,19 +427,21 @@ class Warehouse {
resourceCounter++, name, resource, store, customTemplate, age);
if (attributes != null)
resource.instance.setAttributes(Structure.fromMap(attributes));
resource.instance?.setAttributes(Structure.fromMap(attributes));
if (manager != null) resource.instance.managers.add(manager);
if (manager != null) resource.instance?.managers.add(manager);
if (store == parent) parent = null;
if (parent == null) {
if (!(resource is IStore)) store.instance.children.add(resource);
if (!(resource is IStore)) store?.instance?.children.add(resource);
} else
parent.instance.children.add(resource);
parent.instance?.children.add(resource);
var initResource = () {
_resources[resource.instance.id] = resource;
if (resource.instance == null) return;
_resources[(resource.instance as Instance).id] = resource;
if (_warehouseIsOpen) {
resource.trigger(ResourceTrigger.Initialize).then<dynamic>((value) {
@@ -451,7 +465,7 @@ class Warehouse {
_stores.add(resource);
initResource();
} else {
store.put(resource).then<dynamic>((value) {
store?.put(resource).then<dynamic>((value) {
if (value)
initResource();
else
@@ -468,20 +482,23 @@ class Warehouse {
}
static T createInstance<T>(Type T) {
return _factory[T].instanceCreator.call();
return _factory[T]?.instanceCreator.call();
}
static List<T> createArray<T>(Type T) {
return _factory[T].arrayCreator.call();
return _factory[T]?.arrayCreator.call();
}
static AsyncReply<T> newResource<T extends IResource>(String name,
[IStore store = null,
IResource parent = null,
IPermissionsManager manager = null,
[IStore? store = null,
IResource? parent = null,
IPermissionsManager? manager = null,
attributes = null,
properties = null]) {
var resource = _factory[T].instanceCreator.call();
if (_factory[T] == null)
throw Exception("No Instance Creator was found for type ${T}");
var resource = _factory[T]?.instanceCreator.call();
if (properties != null) {
dynamic d = resource;
@@ -494,12 +511,16 @@ class Warehouse {
var rt = AsyncReply<T>();
put<T>(name, resource, store, parent, null, 0, manager, attributes)
.then<IResource>((value) {
if (value != null)
rt.trigger(resource);
else
rt.trigger(null);
}).error((ex) => rt.triggerError(ex));
..then((value) {
if (value != null)
rt.trigger(resource);
else
rt.triggerError(AsyncException(
ErrorType.Management,
ExceptionCode.GeneralFailure.index,
"Can't put the resource")); // .trigger(null);
})
..error((ex) => rt.triggerError(ex));
return rt;
@@ -516,7 +537,7 @@ class Warehouse {
/// </summary>
/// <param name="template">Resource template.</param>
static void putTemplate(TypeTemplate template) {
_templates[template.type][template.classId] = template;
_templates[template.type]?[template.classId] = template;
}
/// <summary>
@@ -541,22 +562,22 @@ class Warehouse {
/// </summary>
/// <param name="classId">Class Id.</param>
/// <returns>Resource template.</returns>
static TypeTemplate getTemplateByClassId(Guid classId,
static TypeTemplate? getTemplateByClassId(Guid classId,
[TemplateType templateType = TemplateType.Unspecified]) {
if (templateType == TemplateType.Unspecified) {
// look in resources
var template = _templates[TemplateType.Resource][classId];
var template = _templates[TemplateType.Resource]?[classId];
if (template != null) return template;
// look in records
template = _templates[TemplateType.Record][classId];
template = _templates[TemplateType.Record]?[classId];
if (template != null) return template;
// look in wrappers
template = _templates[TemplateType.Wrapper][classId];
template = _templates[TemplateType.Wrapper]?[classId];
return template;
} else {
return _templates[templateType][classId];
return _templates[templateType]?[classId];
}
}
@@ -565,29 +586,29 @@ class Warehouse {
/// </summary>
/// <param name="className">Class name.</param>
/// <returns>Resource template.</returns>
static TypeTemplate getTemplateByClassName(String className,
static TypeTemplate? getTemplateByClassName(String className,
[TemplateType templateType = TemplateType.Unspecified]) {
if (templateType == TemplateType.Unspecified) {
// look in resources
var template = _templates[TemplateType.Resource]
.values
?.values
.firstWhere((x) => x.className == className);
if (template != null) return template;
// look in records
template = _templates[TemplateType.Record]
.values
?.values
.firstWhere((x) => x.className == className);
if (template != null) return template;
// look in wrappers
template = _templates[TemplateType.Wrapper]
.values
?.values
.firstWhere((x) => x.className == className);
return template;
} else {
return _templates[templateType]
.values
?.values
.firstWhere((x) => x.className == className);
}
}
@@ -595,8 +616,8 @@ class Warehouse {
static bool remove(IResource resource) {
if (resource.instance == null) return false;
if (_resources.containsKey(resource.instance.id))
_resources.remove(resource.instance.id);
if (_resources.containsKey(resource.instance?.id))
_resources.remove(resource.instance?.id);
else
return false;
@@ -605,14 +626,14 @@ class Warehouse {
// remove all objects associated with the store
var toBeRemoved =
_resources.values.where((x) => x.instance.store == resource);
_resources.values.where((x) => x.instance?.store == resource);
for (var o in toBeRemoved) remove(o);
// StoreDisconnected?.Invoke(resource as IStore);
}
if (resource.instance.store != null)
resource.instance.store.remove(resource);
if (resource.instance?.store != null)
resource.instance?.store?.remove(resource);
resource.destroy();