jebbs/data-extracter-extesion
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running detect

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jebbs
2018-09-29 14:44:15 +08:00
parent 7e782c633a
commit 69ea3cf69b
1 changed files with 21 additions and 2 deletions
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23
scripts/extractor.js
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@ -2,6 +2,7 @@ class Extractor {
constructor() {
this._tasks = [];
this._tab = undefined;
this._running = false;
this._results = {};
}
/**
@ -35,6 +36,10 @@ class Extractor {
* Start the task chain.
*/
async start() {
if (this._running) {
console.log('The Extractor is running. Please wait..');
return;
}
if (!this._tasks.length) {
console.log('No task to run.');
return;
@ -47,6 +52,7 @@ class Extractor {
} else {
this._tab = await getActiveTab(false);
}
this._running = true;
return this._tasks.reduce((pms, args, i, tasks) => {
return pms.then(
result => {
@ -57,15 +63,23 @@ class Extractor {
}, Promise.resolve(undefined)).then(
result => {
this._results[this._tasks[this._tasks.length - 1]] = result;
this._running = false;
this.save();
}
).catch(err => console.log(err));
).catch(err => {
this._running = false;
console.log(err)
});
}
/**
* restart from specified task, but don't restart the previous tasks.
* @param {number} taskid from which restart the tasks
*/
async restart(taskid) {
if (this._running) {
console.log('The Extractor is running. Please wait..');
return;
}
taskid = this._checkTaskId(taskid, 1);
if (!taskid) return;
if (taskid == 1) {
@ -77,6 +91,7 @@ class Extractor {
console.log(`No result cache for task (id ${taskid}). \nMake sure call ".start()" before ".restart()"?`);
return;
}
this._running = true;
this._tab = await createTab(parseUrls(cache)[0], false)
return this._tasks.slice(taskid - 1).reduce((pms, args, i, tasks) => {
return pms.then(
@ -87,9 +102,13 @@ class Extractor {
}, Promise.resolve(cache)).then(
result => {
this._results[this._tasks[this._tasks.length - 1]] = result;
this._running = false;
this.save();
}
).catch(err => console.log(err));
).catch(err => {
this._running = false;
console.log(err)
});
}
/**
* Save result of a task