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Unified Diff: sky/examples/stocks/lib/stock_data.dart

Issue 1218593002: Move sky/examples to sky/sdk/lib/example, and code changes to support that change. Fixes T277. (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 5 years, 6 months ago
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Index: sky/examples/stocks/lib/stock_data.dart
diff --git a/sky/examples/stocks/lib/stock_data.dart b/sky/examples/stocks/lib/stock_data.dart
deleted file mode 100644
index 39201714fcb37f7aebeff5f989e85a0ccdb50b09..0000000000000000000000000000000000000000
--- a/sky/examples/stocks/lib/stock_data.dart
+++ /dev/null
@@ -1,72 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'dart:convert';
-import 'dart:math';
-import 'package:sky/framework/net/fetch.dart';
-
-// Snapshot from http://www.nasdaq.com/screening/company-list.aspx
-// Fetched 2/23/2014.
-// "Symbol","Name","LastSale","MarketCap","IPOyear","Sector","industry","Summary Quote",
-// Data in stock_data.json
-
-final Random _rng = new Random();
-
-class Stock {
- String symbol;
- String name;
- double lastSale;
- String marketCap;
- double percentChange;
-
- Stock(this.symbol, this.name, this.lastSale, this.marketCap, this.percentChange);
-
- Stock.fromFields(List<String> fields) {
- // FIXME: This class should only have static data, not lastSale, etc.
- // "Symbol","Name","LastSale","MarketCap","IPOyear","Sector","industry","Summary Quote",
- lastSale = 0.0;
- try{
- lastSale = double.parse(fields[2]);
- } catch(_) {}
- symbol = fields[0];
- name = fields[1];
- marketCap = fields[4];
- percentChange = (_rng.nextDouble() * 20) - 10;
- }
-}
-
-class StockData {
- List<List<String>> _data;
-
- StockData(this._data);
-
- void appendTo(List<Stock> stocks) {
- for (List<String> fields in _data)
- stocks.add(new Stock.fromFields(fields));
- }
-}
-
-typedef void StockDataCallback(StockData data);
-const _kChunkCount = 30;
-
-class StockDataFetcher {
- int _currentChunk = 0;
- final StockDataCallback callback;
-
- StockDataFetcher(this.callback) {
- _fetchNextChunk();
- }
-
- void _fetchNextChunk() {
- fetchBody('data/stock_data_${_currentChunk++}.json').then((Response response) {
- String json = response.bodyAsString();
- JsonDecoder decoder = new JsonDecoder();
-
- callback(new StockData(decoder.convert(json)));
-
- if (_currentChunk < _kChunkCount)
- _fetchNextChunk();
- });
- }
-}

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