routing-controllers
Version:
Create structured, declarative and beautifully organized class-based controllers with heavy decorators usage for Express / Koa using TypeScript.
127 lines • 4.13 kB
JavaScript
/**
* Storage all metadatas read from decorators.
*/
export class MetadataArgsStorage {
constructor() {
// -------------------------------------------------------------------------
// Properties
// -------------------------------------------------------------------------
/**
* Registered controller metadata args.
*/
this.controllers = [];
/**
* Registered middleware metadata args.
*/
this.middlewares = [];
/**
* Registered interceptor metadata args.
*/
this.interceptors = [];
/**
* Registered "use middleware" metadata args.
*/
this.uses = [];
/**
* Registered "use interceptor" metadata args.
*/
this.useInterceptors = [];
/**
* Registered action metadata args.
*/
this.actions = [];
/**
* Registered param metadata args.
*/
this.params = [];
/**
* Registered response handler metadata args.
*/
this.responseHandlers = [];
}
// -------------------------------------------------------------------------
// Public Methods
// -------------------------------------------------------------------------
/**
* Filters registered middlewares by a given classes.
*/
filterMiddlewareMetadatasForClasses(classes) {
return classes.map(cls => this.middlewares.find(mid => mid.target === cls)).filter(midd => midd !== undefined); // this might be not needed if all classes where decorated with `@Middleware`
}
/**
* Filters registered interceptors by a given classes.
*/
filterInterceptorMetadatasForClasses(classes) {
return this.interceptors.filter(ctrl => {
return classes.filter(cls => ctrl.target === cls).length > 0;
});
}
/**
* Filters registered controllers by a given classes.
*/
filterControllerMetadatasForClasses(classes) {
return this.controllers.filter(ctrl => {
return classes.filter(cls => ctrl.target === cls).length > 0;
});
}
/**
* Filters registered actions by a given classes.
*/
filterActionsWithTarget(target) {
return this.actions.filter(action => action.target === target);
}
/**
* Filters registered "use middlewares" by a given target class and method name.
*/
filterUsesWithTargetAndMethod(target, methodName) {
return this.uses.filter(use => {
return use.target === target && use.method === methodName;
});
}
/**
* Filters registered "use interceptors" by a given target class and method name.
*/
filterInterceptorUsesWithTargetAndMethod(target, methodName) {
return this.useInterceptors.filter(use => {
return use.target === target && use.method === methodName;
});
}
/**
* Filters parameters by a given classes.
*/
filterParamsWithTargetAndMethod(target, methodName) {
return this.params.filter(param => {
return param.object.constructor === target && param.method === methodName;
});
}
/**
* Filters response handlers by a given class.
*/
filterResponseHandlersWithTarget(target) {
return this.responseHandlers.filter(property => {
return property.target === target;
});
}
/**
* Filters response handlers by a given classes.
*/
filterResponseHandlersWithTargetAndMethod(target, methodName) {
return this.responseHandlers.filter(property => {
return property.target === target && property.method === methodName;
});
}
/**
* Removes all saved metadata.
*/
reset() {
this.controllers = [];
this.middlewares = [];
this.interceptors = [];
this.uses = [];
this.useInterceptors = [];
this.actions = [];
this.params = [];
this.responseHandlers = [];
}
}
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