index.js.map

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Promise = require (\"bluebird\");\nconst TimeoutError = Promise.TimeoutError;\nconst forEach = require(\"lodash.foreach\");\nconst forEachRight = require(\"lodash.foreachright\");\nconst isFunction = require(\"lodash.isfunction\");\nconst sortBy = require(\"lodash.sortby\");\n\n/**\n * A transaction item is effectively a step in the transaction process with a defined forward and backward movement\n * It can also be initialized with state.\n */\nclass TransactionItem {\n\t/**\n\t * Forward and reverse functions passed in return ES6 promises, and take a single state object by reference\n\t * @param forward\n\t * @param reverse\n\t * @param state\n\t * @param name\n\t * @param timeout - the time to wait on a rollback for the transaction to finish\n\t */\n\tconstructor(forward, reverse, state, name, timeout) {\n\t\tif(!(isFunction(forward) && isFunction(reverse))) {\n\t\t\tthrow TypeError(\"Forward and reverse parameters must be functions that return ES6 compatible promises.\");\n\t\t}\n\n\t\tthis.completed = false;\n\n\t\tthis.state = state ? state : null;\n\t\tthis.forward = forward;\n\t\tthis.reverse = reverse;\n\t\tthis.name = name ? name : null;\n\t\tthis.order = null;\n\t\tthis.error = null;\n\t\tthis.inRollback = false;\n\t}\n\n\n\t_start() {\n\t\tthis._completed = [];\n\t\tthis.completed = new Promise((resolve, reject) => {\n\t\t\tthis._completed.push({resolve, reject})\n\t\t});\n\n\t\tthis.complete = () => {\n\t\t\tthis._completed[0].resolve(true);\n\t\t};\n\n\t\tthis.incomplete = () =>{\n\t\t\tthis._completed[0].resolve(false);\n\t\t};\n\t}\n\t/**\n\t * Executes the transaction\n\t * @param s - the state to utilize with the transaction, can be an object containing something the function may need but wasn't known ahead of time.\n\t */\n\texec(s) {\n\t\treturn new Promise((resolve, reject) => {\n\t\t\tif(this.completed === false && !this.inRollback) {\n\t\t\t\tthis._start();\n\t\t\t\tthis.state = s ? s : this.state;\n\t\t\t\tthis.forward(this.state)\n\t\t\t\t\t.then((newState) => {\n\t\t\t\t\t\tthis.state = newState;\n\t\t\t\t\t\tthis.complete();\n\t\t\t\t\t\tresolve(this.state);\n\t\t\t\t\t})\n\t\t\t\t\t.catch((error) => {\n\t\t\t\t\t\tthis.error = error;\n\t\t\t\t\t\tthis.incomplete();\n\t\t\t\t\t\treject(this._addName(\"The transaction item failed to execute. \"+errorAsString(error)));\n\t\t\t\t\t})\n\t\t\t}\n\t\t\telse {\n\t\t\t\treject(this._addName(\"This is an executed transaction item and cannot be re-executed\"));\n\t\t\t}\n\t\t})\n\t}\n\n\trollback() {\n\t\tif(this.completed == false && !this.completed instanceof Promise) {\n\t\t\tthis.inRollback = true;\n\t\t\treturn Promise.resolve();\n\t\t}\n\t\telse { // this is either pending or resolved\n\t\t\treturn new Promise((resolve, reject) => {\n\t\t\t\tlet timeout = this.timeout ? this.timeout : 1000;\n\t\t\t\tthis.completed.timeout(timeout).then((completed)=> {\n\t\t\t\t\tif(completed) {\n\t\t\t\t\t\tthis.reverse(this.state)\n\t\t\t\t\t\t\t.then(()=> {\n\t\t\t\t\t\t\t\tthis.completed = false;\n\t\t\t\t\t\t\t\tresolve();\n\t\t\t\t\t\t\t})\n\t\t\t\t\t\t\t.catch((error) => {\n\t\t\t\t\t\t\t\treject(this._addName(\"The transaction item failed to rollback. \"+errorAsString(error)));\n\t\t\t\t\t\t\t})\n\t\t\t\t\t}\n\t\t\t\t\telse {\n\t\t\t\t\t\tresolve();\n\t\t\t\t\t}\n\t\t\t\t}).catch((error)=> {\n\t\t\t\t\tif(error instanceof TimeoutError) {\n\t\t\t\t\t\treject(\"The transaction item timed out\");\n\t\t\t\t\t}\n\t\t\t\t\telse {\n\t\t\t\t\t\treject(this._addName(\"The transaction item failed to execute. \"+errorAsString(error)));\n\t\t\t\t\t}\n\t\t\t\t})\n\t\t\t})\n\t\t}\n\t}\n\n\t_addName(errorStr) {\n\t\treturn this.name ? this.name +\": \"+errorStr : errorStr;\n\t}\n}\n\n/**\n * A transaction is a collection of transaction items that can be run serially or in parallel. 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(typeof error === 'object' ? JSON.stringify(error, null, 4) : error) : error;\n}\n\nexport {\n\tTransaction,\n\tTransactionItem\n}\n"]}