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Splitting language translation & translator into seperate services, a…
…dding a warning when using translator without a url because the default is incorrect and will change soon
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| /** | ||
| * Copyright 2015 IBM Corp. 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. You may obtain a copy of | ||
| * the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License 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. | ||
| */ | ||
|
|
||
| 'use strict'; | ||
|
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| var requestFactory = require('../lib/requestwrapper'); | ||
| var extend = require('extend'); | ||
| var pick = require('object.pick'); | ||
| var isStream = require('isstream'); | ||
| var helper = require('../lib/helper'); | ||
| var util = require('util'); | ||
| var BaseService = require('../lib/base_service'); | ||
|
|
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| /** | ||
| * | ||
| * @param {string} [params.url=https://gateway.watsonplatform.net/language-translation/api] The service URL. | ||
| * @param {string} params.username Username | ||
| * @param {string} params.password Password | ||
| * @constructor | ||
| */ | ||
| function LanguageTranslationV2(options) { | ||
| BaseService.call(this, options); | ||
| } | ||
| util.inherits(LanguageTranslationV2, BaseService); | ||
| LanguageTranslationV2.prototype.name = 'language_translation'; | ||
| LanguageTranslationV2.prototype.version = 'v2'; | ||
| LanguageTranslationV2.URL = 'https://gateway.watsonplatform.net/language-translation/api'; | ||
|
|
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| /** | ||
| * Return the translation models | ||
| */ | ||
|
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| /** | ||
| * Return the translation models | ||
| * @param {string} params.default Query filters to check if the model is | ||
| * the default one used when only source | ||
| * and target languages are specified. | ||
| * @param {string} params.source Filter by source language | ||
| * @param {string} params.target Filter by target language | ||
| */ | ||
| LanguageTranslationV2.prototype.getModels = function(params, callback) { | ||
| params = params || {}; | ||
|
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| var parameters = { | ||
| options: { | ||
| method: 'GET', | ||
| url: '/v2/models', | ||
| qs: pick(params,['default','source','target']), | ||
| json: true | ||
| }, | ||
| defaultOptions: this._options | ||
| }; | ||
| return requestFactory(parameters, callback); | ||
| }; | ||
|
|
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| /** | ||
| * Return the translation model | ||
| * @param {string} params.model_id The model identifier | ||
| */ | ||
| LanguageTranslationV2.prototype.getModel = function(params, callback) { | ||
| params = params || {}; | ||
|
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| var parameters = { | ||
| options: { | ||
| method: 'GET', | ||
| url: '/v2/models/{model_id}', | ||
| path: pick(params,['model_id']), | ||
| json: true | ||
| }, | ||
| requiredParams: ['model_id'], | ||
| defaultOptions: this._options | ||
| }; | ||
| return requestFactory(parameters, callback); | ||
| }; | ||
|
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| /** | ||
| * Creates a translation model | ||
| * @param {string} params.base_model_id The base model identifier | ||
| * @param {string} params.name The model name | ||
| * @param {stream} params.forced_glossary A UTF-8 encoded TMX file that contains pairs of matching terms in the source and target language that are seen as absolute by the system. This file completely overwrites the original domain data. | ||
| * @param {stream} params.parallel_corpus A UTF-8 encoded TMX file that contains matching phrases in the source and target language that serve as examples for Watson. Parallel corpora differ from glossaries because they do not overwrite the original domain data. | ||
| * @param {stream} params.monolingual_corpus A UTF-8 encoded plain text file that contains a body of text in the target language that is related to what you are translating. A monolingual corpus helps improve literal translations to be more fluent and human. | ||
| */ | ||
|
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| LanguageTranslationV2.prototype.createModel = function(params, callback) { | ||
| params = params || {}; | ||
|
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| var missingParams = helper.getMissingParams(params, ['base_model_id']); | ||
| if (missingParams) { | ||
| callback(new Error('Missing required parameters: ' + missingParams.join(', '))); | ||
| return; | ||
| } | ||
|
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| var inputTypes = ['forced_glossary', 'parallel_corpus', 'monolingual_corpus']; | ||
|
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| for (var type in inputTypes) { | ||
| if (inputTypes.hasOwnProperty(type)) { | ||
| if (params[inputTypes[type]] && !isStream(params[inputTypes[type]])) { | ||
| callback(new Error(inputTypes[type] + ' is not a standard Node.js Stream')); | ||
| return; | ||
| } | ||
| } | ||
| } | ||
|
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| var parameters = { | ||
| options: { | ||
| method: 'POST', | ||
| url: '/v2/models', | ||
| qs: pick(params,['name', 'base_model_id']), | ||
| formData: pick(params, inputTypes), | ||
| json: true | ||
| }, | ||
| defaultOptions: this._options | ||
| }; | ||
| return requestFactory(parameters, callback); | ||
| }; | ||
|
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| /** | ||
| * Deletes a model | ||
| * @param {string} params.model_id The model identifier | ||
| */ | ||
| LanguageTranslationV2.prototype.deleteModel = function(params, callback) { | ||
| params = params || {}; | ||
|
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| var parameters = { | ||
| options: { | ||
| method: 'DELETE', | ||
| url: '/v2/models/{model_id}', | ||
| path: pick(params,['model_id']), | ||
| json: true | ||
| }, | ||
| requiredParams: ['model_id'], | ||
| defaultOptions: this._options | ||
| }; | ||
| return requestFactory(parameters, callback); | ||
| }; | ||
|
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| /** | ||
| * Translate pharagraphs from one language into another | ||
| * @param {string} params.source Source language | ||
| * @param {string} params.target Target language | ||
| */ | ||
| LanguageTranslationV2.prototype.translate = function(params, callback) { | ||
| params = params || {}; | ||
|
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| if (!(params.model_id || (params.source && params.target))){ | ||
| callback(new Error('Missing required parameters: model_id or source and target')); | ||
| return; | ||
| } | ||
| var parameters = { | ||
| options: { | ||
| url: '/v2/translate', | ||
| method: 'POST', | ||
| json: true, | ||
| body: pick(params, ['source','target','text','model_id']) | ||
| }, | ||
| requiredParams: ['text'], | ||
| defaultOptions: this._options | ||
| }; | ||
|
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| return requestFactory(parameters, callback); | ||
| }; | ||
|
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| /** | ||
| * Returns the identifiable languages | ||
| */ | ||
| LanguageTranslationV2.prototype.getIdentifiableLanguages = function(params, callback) { | ||
| params = params || {}; | ||
|
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| var parameters = { | ||
| options: { | ||
| url: '/v2/identifiable_languages', | ||
| method: 'GET' | ||
| }, | ||
| defaultOptions: this._options | ||
| }; | ||
|
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| return requestFactory(parameters, callback); | ||
| }; | ||
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| /** | ||
| * Identify the text based on the identifiable languages | ||
| * @param {string} params.text text to identify | ||
| */ | ||
| LanguageTranslationV2.prototype.identify = function(params, callback) { | ||
| if (!params || !params.text){ | ||
| callback(new Error('Missing required parameters: text')); | ||
| return; | ||
| } | ||
|
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| var parameters = { | ||
| options: { | ||
| url: '/v2/identify', | ||
| method: 'POST', | ||
| body: params.text | ||
| }, | ||
| defaultOptions: extend(true, {}, this._options, { | ||
| headers: { | ||
| 'accept':'application/json', | ||
| 'content-type': 'plain/text' | ||
| } | ||
| }) | ||
| }; | ||
|
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| return requestFactory(parameters, callback); | ||
| }; | ||
|
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| module.exports = LanguageTranslationV2; |
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