react-native-blob-util/class/ReactNativeBlobUtilSession.js

A module provides upload, download, and files access API. Supports file stream read/write for process large files.

// Copyright 2016 wkh237@github. All rights reserved.
// Use of this source code is governed by a MIT-style license that can be
// found in the LICENSE file.

import ReactNativeBlobUtil from '../codegenSpecs/NativeBlobUtils';

let sessions = {};

export default class ReactNativeBlobUtilSession {

  name : string;

  static getSession(name:string):any {
    return sessions[name];
  }

  static setSession(name:string, val:any) {
    sessions[name] = val;
  }

  static removeSession(name:string) {
    delete sessions[name];
  }

  constructor(name:string, list:Array<string>) {
    this.name = name;
    if (!sessions[name]) {
      if (Array.isArray(list))
      sessions[name] = list;
      else
      sessions[name] = [];
    }
  }

  add(path:string):ReactNativeBlobUtilSession {
    sessions[this.name].push(path);
    return this;
  }

  remove(path:string):ReactNativeBlobUtilSession {
    let list = sessions[this.name];
    for (let i of list) {
      if (list[i] === path) {
        sessions[this.name].splice(i, 1);
        break;
      }
    }
    return this;
  }

  list():Array<string> {
    return sessions[this.name];
  }

  dispose():Promise {
    return new Promise((resolve, reject) => {
      ReactNativeBlobUtil.removeSession(sessions[this.name], (err) => {
        if (err)
          reject(new Error(err));
        else {
          delete sessions[this.name];
          resolve();
        }
      });
    });
  }

}