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var Objects = require('../Utility').Objects |
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var Defaults = require('./Defaults') |
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var Normalizer = { |
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/** |
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* @param {TStateTrigger|string} trigger |
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* @return {TStateTrigger} |
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*/ |
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stateTrigger: function (trigger) { |
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if (typeof trigger === 'string') { |
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trigger = {id: trigger} |
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} |
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if (!Objects.isObject(trigger) || !trigger.id) { |
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return null |
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} |
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var hints = trigger.hints |
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if (!Objects.isObject(hints) && !Objects.isFunction(hints)) { |
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trigger.hints = {} |
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} |
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return trigger |
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}, |
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/** |
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* Normalizes transition output. |
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* |
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* @param {TTransitionReturn|string} result |
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* @return {TTransitionReturn} |
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*/ |
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transition: function (result) { |
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result = Objects.copy(result, true) |
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if (typeof result === 'string') { |
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result = {trigger: result} |
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} else if (!Objects.isObject(result)) { |
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result = {} |
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} |
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result.trigger = Normalizer.stateTrigger(result.trigger) |
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if (typeof result.transitionedTo !== 'string') { |
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result.transitionedTo = null |
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} |
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return result |
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}, |
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/** |
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* @param {TState|Function} state |
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* @param {TStateId} id |
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* @param {object<string, (int|null)>} timeouts |
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* @return {TState} |
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*/ |
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state: function (state, id, timeouts) { |
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if (Objects.isFunction(state)) { |
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state = {transition: state} |
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} |
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state = Objects.copy(state, true) |
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state.id = typeof state.id === 'string' ? state.id : id |
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state.entrypoint = !!state.entrypoint |
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state.terminal = !!state.terminal |
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var handler = state.transition || function () {} |
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state.transition = Normalizer.handler(handler, 'transition', timeouts) |
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handler = state.abort || function () {} |
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state.abort = Normalizer.handler(handler, 'abort', timeouts) |
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state.triggers = Normalizer.stateTrigger(state.triggers) |
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if (!state.hasOwnProperty('timeout')) { |
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state.timeout = timeouts.state |
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} |
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return state |
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}, |
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/** |
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* @param {TStateHandler|Function} handler |
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* @param {string} id |
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* @param {object<string, (int|null)>} timeouts |
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* |
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* @return {TStateHandler} |
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*/ |
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handler: function (handler, id, timeouts) { |
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var cursor = handler && handler.handler |
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var defaultHandler = function () { return cursor } |
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handler = Normalizer.singleHandler(handler, defaultHandler, id, timeouts) |
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if (handler.onTimeout) { |
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var name = 'on' + id[0].toUpperCase() + id.substr(1) + 'Timeout' |
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handler.onTimeout = Normalizer.handler(handler.onTimeout, name, timeouts) |
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} |
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return handler |
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}, |
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/** |
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* @param {TStateHandler|Function} handler |
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* @param {Function} defaultHandler |
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* @param {string} id |
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* @param {object<string, (int|null)>} timeouts |
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* |
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* @return {TStateHandler} |
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*/ |
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singleHandler: function (handler, defaultHandler, id, timeouts) { |
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if (Objects.isFunction(handler)) { |
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handler = {handler: handler} |
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} |
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if (!Objects.isObject(handler)) { |
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handler = {} |
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} |
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handler.id = id |
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if (!Objects.isFunction(handler.handler)) { |
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handler.handler = defaultHandler |
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} |
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if (!handler.hasOwnProperty('timeout')) { |
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handler.timeout = timeouts[id] |
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} |
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return handler |
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}, |
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/** |
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* @param {TScenarioInput} input |
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* |
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* @return {TScenario} |
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*/ |
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scenario: function (input) { |
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if (!Objects.isObject(input)) { |
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throw new Error('Provided scenario is not an object') |
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} |
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var scenario = Objects.copy(input, true) |
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var timeouts = Objects.copy(Defaults.Timeouts) |
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timeouts = Objects.merge(timeouts, input.timeouts || {}) |
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var handlers = ['onError', 'onTermination'] |
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handlers.forEach(function (name) { |
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scenario[name] = Normalizer.handler(scenario[name], name, timeouts) |
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}) |
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scenario.states = scenario.states || {} |
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Object.keys(scenario.states).forEach(function (key) { |
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scenario.states[key] = Normalizer.state(scenario.states[key], key, timeouts) |
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}) |
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scenario.timeout = timeouts.scenario |
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scenario.deserializer = Normalizer.deserializer(scenario.deserializer, timeouts) |
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return scenario |
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}, |
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/** |
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* @param {THandler|Function|*} handler |
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* @param {object.<string, (int|null)>} timeouts |
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* |
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* @return {TStateHandler} |
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*/ |
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deserializer: function (handler, timeouts) { |
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if (!Objects.isObject(handler)) { |
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handler = {handler: handler} |
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} |
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if (!Objects.isFunction(handler.handler)) { |
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handler.handler = Defaults.Deserializer |
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} |
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return Normalizer.handler(handler, 'deserializer', timeouts) |
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} |
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} |
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147
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module.exports = { |
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Normalizer: Normalizer |
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149
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} |
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150
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ama-team /
voxengine-scenario-framework
