| Index: dart/samples/dartiverse_search/main.dart
|
| ===================================================================
|
| --- dart/samples/dartiverse_search/main.dart (revision 29908)
|
| +++ dart/samples/dartiverse_search/main.dart (working copy)
|
| @@ -1,123 +0,0 @@
|
| -// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
|
| -// for details. All rights reserved. Use of this source code is governed by a
|
| -// BSD-style license that can be found in the LICENSE file.
|
| -
|
| -library dartiverse_search;
|
| -
|
| -import 'dart:async';
|
| -import 'dart:convert';
|
| -import 'dart:io';
|
| -
|
| -import 'package:http_server/http_server.dart' as http_server;
|
| -import 'package:http/http.dart' as http_client;
|
| -import 'package:route/server.dart';
|
| -import 'package:logging/logging.dart' show Logger, Level;
|
| -
|
| -part 'search_engine.dart';
|
| -part 'stack_overflow_search_engine.dart';
|
| -part 'github_search_engine.dart';
|
| -
|
| -
|
| -final Logger log = new Logger('DartiverseSearch');
|
| -
|
| -
|
| -// List of search-engines used.
|
| -final searchEngines = [
|
| - new StackOverflowSearchEngine(),
|
| - new GithubSearchEngine()
|
| -];
|
| -
|
| -
|
| -/**
|
| - * Handle an established [WebSocket] connection.
|
| - *
|
| - * The web-socket can send search requests as JSON-formatted messages,
|
| - * that will be responded to with a series of results and finally a done
|
| - * message.
|
| - */
|
| -void handleWebSocket(WebSocket webSocket) {
|
| - log.info('New web-socket connection');
|
| -
|
| - // Listen for incoming data. We expect the data to be a JSON-encoded String.
|
| - webSocket
|
| - .map((string) => JSON.decode(string))
|
| - .listen((json) {
|
| - // The JSON object should contains a 'request' entry.
|
| - var request = json['request'];
|
| - switch (request) {
|
| - case 'search':
|
| - // Initiate a new search.
|
| - var input = json['input'];
|
| - log.info("Searching for '$input'");
|
| - int done = 0;
|
| - for (var engine in searchEngines) {
|
| - engine.search(input)
|
| - .listen((result) {
|
| - // The search-engine found a result. Sent it to the client.
|
| - log.info("Got result from ${engine.name} for '$input': "
|
| - "${result.title}");
|
| - var response = {
|
| - 'response': 'searchResult',
|
| - 'source': engine.name,
|
| - 'title': result.title,
|
| - 'link': result.link
|
| - };
|
| - webSocket.add(JSON.encode(response));
|
| - }, onError: (error) {
|
| - log.warning("Error while searching on ${engine.name}: $error");
|
| - },onDone: () {
|
| - done++;
|
| - if (done == searchEngines.length) {
|
| - // All search-engines are done. Send done message to the
|
| - // client.
|
| - webSocket.add(JSON.encode({ 'response': 'searchDone' }));
|
| - }
|
| - });
|
| - }
|
| - break;
|
| -
|
| - default:
|
| - log.warning("Invalid request '$request'.");
|
| - }
|
| - }, onError: (error) {
|
| - log.warning('Bad WebSocket request');
|
| - });
|
| -}
|
| -
|
| -
|
| -void main() {
|
| - // Set up logger.
|
| - Logger.root.level = Level.ALL;
|
| - Logger.root.onRecord.listen((LogRecord rec) {
|
| - print('${rec.level.name}: ${rec.time}: ${rec.message}');
|
| - });
|
| -
|
| - var buildPath = Platform.script.resolve('build').toFilePath();
|
| - if (!new Directory(buildPath).existsSync()) {
|
| - log.severe("The 'build/' directory was not found. Please run 'pub build'.");
|
| - return;
|
| - }
|
| - HttpServer.bind('0.0.0.0', 8080).then((server) {
|
| - log.info("Search server is running on "
|
| - "'http://${Platform.localHostname}:8080/'");
|
| - var router = new Router(server);
|
| -
|
| - // The client will connect using a WebSocket. Upgrade requests to '/ws' and
|
| - // forward them to 'handleWebSocket'.
|
| - router.serve('/ws')
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| - .transform(new WebSocketTransformer())
|
| - .listen(handleWebSocket);
|
| -
|
| - // Set up default handler. This will serve files from our 'build' directory.
|
| - var virDir = new http_server.VirtualDirectory(buildPath);
|
| - // Disable jail-root, as packages are local sym-links.
|
| - virDir.jailRoot = false;
|
| - virDir.allowDirectoryListing = true;
|
| - virDir.directoryHandler = (dir, request) {
|
| - // Redirect directory-requests to index.html files.
|
| - var indexUri = new Uri.file(dir.path).resolve('index.html');
|
| - virDir.serveFile(new File(indexUri.toFilePath()), request);
|
| - };
|
| - virDir.serve(router.defaultStream);
|
| - });
|
| -}
|
|
|