@angular/router-deprecated/src/rules/rule_set.js

"use strict";
var async_1 = require('../facade/async');
var collection_1 = require('../facade/collection');
var exceptions_1 = require('../facade/exceptions');
var lang_1 = require('../facade/lang');
var route_config_impl_1 = require('../route_config/route_config_impl');
var async_route_handler_1 = require('./route_handlers/async_route_handler');
var sync_route_handler_1 = require('./route_handlers/sync_route_handler');
var param_route_path_1 = require('./route_paths/param_route_path');
var regex_route_path_1 = require('./route_paths/regex_route_path');
var rules_1 = require('./rules');
/**
 * A `RuleSet` is responsible for recognizing routes for a particular component.
 * It is consumed by `RouteRegistry`, which knows how to recognize an entire hierarchy of
 * components.
 */
var RuleSet = (function () {
    function RuleSet() {
        this.rulesByName = new collection_1.Map();
        // map from name to rule
        this.auxRulesByName = new collection_1.Map();
        // map from starting path to rule
        this.auxRulesByPath = new collection_1.Map();
        // TODO: optimize this into a trie
        this.rules = [];
        // the rule to use automatically when recognizing or generating from this rule set
        this.defaultRule = null;
    }
    /**
     * Configure additional rules in this rule set from a route definition
     * @returns {boolean} true if the config is terminal
     */
    RuleSet.prototype.config = function (config) {
        var handler;
        if (lang_1.isPresent(config.name) && config.name[0].toUpperCase() != config.name[0]) {
            var suggestedName = config.name[0].toUpperCase() + config.name.substring(1);
            throw new exceptions_1.BaseException("Route \"" + config.path + "\" with name \"" + config.name + "\" does not begin with an uppercase letter. Route names should be PascalCase like \"" + suggestedName + "\".");
        }
        if (config instanceof route_config_impl_1.AuxRoute) {
            handler = new sync_route_handler_1.SyncRouteHandler(config.component, config.data);
            var routePath_1 = this._getRoutePath(config);
            var auxRule = new rules_1.RouteRule(routePath_1, handler, config.name);
            this.auxRulesByPath.set(routePath_1.toString(), auxRule);
            if (lang_1.isPresent(config.name)) {
                this.auxRulesByName.set(config.name, auxRule);
            }
            return auxRule.terminal;
        }
        var useAsDefault = false;
        if (config instanceof route_config_impl_1.Redirect) {
            var routePath_2 = this._getRoutePath(config);
            var redirector = new rules_1.RedirectRule(routePath_2, config.redirectTo);
            this._assertNoHashCollision(redirector.hash, config.path);
            this.rules.push(redirector);
            return true;
        }
        if (config instanceof route_config_impl_1.Route) {
            handler = new sync_route_handler_1.SyncRouteHandler(config.component, config.data);
            useAsDefault = lang_1.isPresent(config.useAsDefault) && config.useAsDefault;
        }
        else if (config instanceof route_config_impl_1.AsyncRoute) {
            handler = new async_route_handler_1.AsyncRouteHandler(config.loader, config.data);
            useAsDefault = lang_1.isPresent(config.useAsDefault) && config.useAsDefault;
        }
        var routePath = this._getRoutePath(config);
        var newRule = new rules_1.RouteRule(routePath, handler, config.name);
        this._assertNoHashCollision(newRule.hash, config.path);
        if (useAsDefault) {
            if (lang_1.isPresent(this.defaultRule)) {
                throw new exceptions_1.BaseException("Only one route can be default");
            }
            this.defaultRule = newRule;
        }
        this.rules.push(newRule);
        if (lang_1.isPresent(config.name)) {
            this.rulesByName.set(config.name, newRule);
        }
        return newRule.terminal;
    };
    /**
     * Given a URL, returns a list of `RouteMatch`es, which are partial recognitions for some route.
     */
    RuleSet.prototype.recognize = function (urlParse) {
        var solutions = [];
        this.rules.forEach(function (routeRecognizer) {
            var pathMatch = routeRecognizer.recognize(urlParse);
            if (lang_1.isPresent(pathMatch)) {
                solutions.push(pathMatch);
            }
        });
        // handle cases where we are routing just to an aux route
        if (solutions.length == 0 && lang_1.isPresent(urlParse) && urlParse.auxiliary.length > 0) {
            return [async_1.PromiseWrapper.resolve(new rules_1.PathMatch(null, null, urlParse.auxiliary))];
        }
        return solutions;
    };
    RuleSet.prototype.recognizeAuxiliary = function (urlParse) {
        var routeRecognizer = this.auxRulesByPath.get(urlParse.path);
        if (lang_1.isPresent(routeRecognizer)) {
            return [routeRecognizer.recognize(urlParse)];
        }
        return [async_1.PromiseWrapper.resolve(null)];
    };
    RuleSet.prototype.hasRoute = function (name) { return this.rulesByName.has(name); };
    RuleSet.prototype.componentLoaded = function (name) {
        return this.hasRoute(name) && lang_1.isPresent(this.rulesByName.get(name).handler.componentType);
    };
    RuleSet.prototype.loadComponent = function (name) {
        return this.rulesByName.get(name).handler.resolveComponentType();
    };
    RuleSet.prototype.generate = function (name, params) {
        var rule = this.rulesByName.get(name);
        if (lang_1.isBlank(rule)) {
            return null;
        }
        return rule.generate(params);
    };
    RuleSet.prototype.generateAuxiliary = function (name, params) {
        var rule = this.auxRulesByName.get(name);
        if (lang_1.isBlank(rule)) {
            return null;
        }
        return rule.generate(params);
    };
    RuleSet.prototype._assertNoHashCollision = function (hash, path /** TODO #9100 */) {
        this.rules.forEach(function (rule) {
            if (hash == rule.hash) {
                throw new exceptions_1.BaseException("Configuration '" + path + "' conflicts with existing route '" + rule.path + "'");
            }
        });
    };
    RuleSet.prototype._getRoutePath = function (config) {
        if (lang_1.isPresent(config.regex)) {
            if (lang_1.isFunction(config.serializer)) {
                return new regex_route_path_1.RegexRoutePath(config.regex, config.serializer, config.regex_group_names);
            }
            else {
                throw new exceptions_1.BaseException("Route provides a regex property, '" + config.regex + "', but no serializer property");
            }
        }
        if (lang_1.isPresent(config.path)) {
            // Auxiliary routes do not have a slash at the start
            var path = (config instanceof route_config_impl_1.AuxRoute && config.path.startsWith('/')) ?
                config.path.substring(1) :
                config.path;
            return new param_route_path_1.ParamRoutePath(path);
        }
        throw new exceptions_1.BaseException('Route must provide either a path or regex property');
    };
    return RuleSet;
}());
exports.RuleSet = RuleSet;
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