ask-sdk-core
Version:
Core package for Alexa Skills Kit SDK
93 lines • 4.77 kB
JavaScript
;
/*
* Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
* http://www.apache.org/licenses/LICENSE-2.0
*
* or in the "license" file accompanying this file. This file is distributed
* on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.AttributesManagerFactory = void 0;
const ask_sdk_runtime_1 = require("ask-sdk-runtime");
/**
* Provider for attributes that can be stored on three levels: request, session and persistence.
*/
class AttributesManagerFactory {
static init(options) {
if (!options.requestEnvelope) {
throw (0, ask_sdk_runtime_1.createAskSdkError)('AttributesManagerFactory', 'RequestEnvelope cannot be null or undefined!');
}
let thisRequestAttributes = {};
let thisSessionAttributes = options.requestEnvelope.session
? options.requestEnvelope.session.attributes
? JSON.parse(JSON.stringify(options.requestEnvelope.session.attributes))
: {}
: undefined;
let thisPersistentAttributes;
let persistentAttributesSet = false;
return {
getRequestAttributes() {
return thisRequestAttributes;
},
getSessionAttributes() {
if (!options.requestEnvelope.session) {
throw (0, ask_sdk_runtime_1.createAskSdkError)('AttributesManager', 'Cannot get SessionAttributes from out of session request!');
}
return thisSessionAttributes;
},
async getPersistentAttributes(useSessionCache = true, defaultAttributes) {
if (!options.persistenceAdapter) {
throw (0, ask_sdk_runtime_1.createAskSdkError)('AttributesManager', 'Cannot get PersistentAttributes without PersistenceManager');
}
if (!persistentAttributesSet || !useSessionCache) {
thisPersistentAttributes = await options.persistenceAdapter.getAttributes(options.requestEnvelope);
persistentAttributesSet = true;
}
if (defaultAttributes && (!thisPersistentAttributes || Object.keys(thisPersistentAttributes).length < 1)) {
thisPersistentAttributes = defaultAttributes;
}
return thisPersistentAttributes;
},
setRequestAttributes(requestAttributes) {
thisRequestAttributes = requestAttributes;
},
setSessionAttributes(sessionAttributes) {
if (!options.requestEnvelope.session) {
throw (0, ask_sdk_runtime_1.createAskSdkError)('AttributesManager', 'Cannot set SessionAttributes to out of session request!');
}
thisSessionAttributes = sessionAttributes;
},
setPersistentAttributes(persistentAttributes) {
if (!options.persistenceAdapter) {
throw (0, ask_sdk_runtime_1.createAskSdkError)('AttributesManager', 'Cannot set PersistentAttributes without persistence adapter!');
}
thisPersistentAttributes = persistentAttributes;
persistentAttributesSet = true;
},
async savePersistentAttributes() {
if (!options.persistenceAdapter) {
throw (0, ask_sdk_runtime_1.createAskSdkError)('AttributesManager', 'Cannot save PersistentAttributes without persistence adapter!');
}
if (persistentAttributesSet) {
await options.persistenceAdapter.saveAttributes(options.requestEnvelope, thisPersistentAttributes);
}
},
async deletePersistentAttributes() {
if (!options.persistenceAdapter) {
throw (0, ask_sdk_runtime_1.createAskSdkError)('AttributesManager', 'Cannot delete PersistentAttributes without persistence adapter!');
}
await options.persistenceAdapter.deleteAttributes(options.requestEnvelope);
thisPersistentAttributes = undefined;
persistentAttributesSet = false;
},
};
}
constructor() { }
}
exports.AttributesManagerFactory = AttributesManagerFactory;
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