4 changed files with 21 additions and 74 deletions
@ -1,63 +0,0 @@ |
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"use strict"; |
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const Promise = require("bluebird"); |
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const pDefer = require("p-defer"); |
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module.exports = function createRequestQueue(options = {}) { |
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let requestBuffer = []; |
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let responseBuffer = []; |
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let seenError; |
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function failAllRequests(error) { |
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let failedRequests = requestBuffer; |
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requestBuffer = []; |
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seenError = error; |
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for (let request of failedRequests) { |
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request.reject(error); |
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} |
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} |
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function maybeOnMatch() { |
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if (options.onMatch != null) { |
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return Promise.try(() => { |
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return options.onMatch(); |
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}).catch((error) => { |
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failAllRequests(error); |
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}); |
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} |
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} |
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return { |
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pushRequest: function () { |
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if (responseBuffer.length > 0) { |
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let returnValue = Promise.resolve(responseBuffer.shift()); |
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maybeOnMatch(); |
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return returnValue; |
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} else if (seenError !== undefined) { |
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return Promise.reject(seenError); |
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} else { |
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let { resolve, reject, promise } = pDefer(); |
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requestBuffer.push({ resolve, reject }); |
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return promise; |
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} |
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}, |
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pushResponse: function (response) { |
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if (requestBuffer.length > 0) { |
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let request = requestBuffer.shift(); |
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request.resolve(response); |
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maybeOnMatch(); |
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} else { |
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responseBuffer.push(response); |
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} |
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}, |
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failAllRequests: failAllRequests, |
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requestCount: function () { |
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return requestBuffer.length; |
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}, |
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responseCount: function () { |
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return responseBuffer.length; |
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} |
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}; |
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}; |
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