node-nlp
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Library for NLU (Natural Language Understanding) done in Node.js
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<h1 class="page-title">Source: recognizer/conversation-context.js</h1>
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<pre class="prettyprint source linenums"><code>/*
* Copyright (c) AXA Shared Services Spain S.A.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/**
* Abstract class for a conversation context of a chatbot.
* The conversation context is the responsible of storing and retrieving
* the context scope variables based on the current conversation.
* The getConversationContext receive the session of the chatbot, and must return
* a promise with the context in the resolve.
*/
class ConversationContext {
/**
* Constructor of the class.
* @param {Object} settings Settings for the instance.
*/
constructor(settings) {
this.settings = settings || {};
}
/**
* Given a session instance of a chatbot, return the conversation identifier.
* @param {Object} session Session instance of a message of chatbot.
* @returns {String} Identifier of the conversation.
*/
getConversationId(session) {
if (
session &&
session.message &&
session.message.address &&
session.message.address.conversation
) {
return session.message.address.conversation.id;
}
return undefined;
}
/**
* Given a session, return a promise to resolve the conversation context.
*/
getConversationContext() {
throw new Error('This method must be implemented by child');
}
/**
* Given a session, return a promise to set the conversation context.
*/
setConversationContext() {
throw new Error('This method must be implemented by child');
}
}
module.exports = ConversationContext;
</code></pre>
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