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query result

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This commit is contained in:
Jan Prochazka
2020-04-10 11:52:25 +02:00
parent 8be7c0aa6b
commit f01bf8a605
3 changed files with 48 additions and 7 deletions
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7
packages/api/src/controllers/jsldata.js
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@@ -8,12 +8,13 @@ module.exports = {
openedReaders: {},
closeReader(jslid) {
// console.log('CLOSING READER');
if (!this.openedReaders[jslid]) return Promise.resolve();
return new Promise((resolve, reject) => {
this.openedReaders[jslid].reader.close((err) => {
if (err) reject(err);
resolve();
delete this.openedReaders[jslid];
resolve();
});
});
},
@@ -32,6 +33,7 @@ module.exports = {
},
openReader(jslid) {
// console.log('OPENING READER');
const file = path.join(jsldir(), `${jslid}.jsonl`);
return new Promise((resolve, reject) =>
lineReader.open(file, (err, reader) => {
@@ -47,7 +49,7 @@ module.exports = {
async ensureReader(jslid, offset) {
if (this.openedReaders[jslid] && this.openedReaders[jslid].readedCount > offset) {
await this.closeReader();
await this.closeReader(jslid);
}
if (!this.openedReaders[jslid]) {
await this.openReader(jslid);
@@ -65,6 +67,7 @@ module.exports = {
getRows_meta: 'get',
async getRows({ jslid, offset, limit }) {
// console.log('GET ROWS', offset, limit);
await this.ensureReader(jslid, offset);
const res = [];
for (let i = 0; i < limit; i += 1) {