serverside/src/main/java/org/apidesign/bck2brwsr/demo/serverside/ChatServerResource.java
2 * The MIT License (MIT)
4 * Copyright (C) 2013 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 package org.apidesign.bck2brwsr.demo.serverside;
26 import java.io.Closeable;
27 import java.lang.reflect.Field;
28 import java.util.ArrayList;
29 import java.util.IdentityHashMap;
30 import java.util.List;
32 import java.util.concurrent.Callable;
33 import java.util.logging.Level;
34 import java.util.logging.Logger;
35 import javax.inject.Singleton;
36 import javax.ws.rs.Consumes;
37 import javax.ws.rs.DefaultValue;
38 import javax.ws.rs.GET;
39 import javax.ws.rs.PUT;
40 import javax.ws.rs.Path;
41 import javax.ws.rs.Produces;
42 import javax.ws.rs.QueryParam;
43 import javax.ws.rs.container.AsyncResponse;
44 import javax.ws.rs.container.Suspended;
45 import javax.ws.rs.core.MediaType;
46 import net.java.html.json.Context;
47 import org.apidesign.bck2brwsr.launcher.Launcher;
48 import org.glassfish.grizzly.http.server.HttpServer;
49 import org.glassfish.grizzly.http.server.ServerConfiguration;
50 import org.glassfish.jersey.grizzly2.httpserver.GrizzlyHttpContainer;
51 import org.glassfish.jersey.server.ContainerFactory;
52 import org.glassfish.jersey.server.ResourceConfig;
54 /** Server side of the chat application.*/
56 public final class ChatServerResource {
57 private static final Logger LOG = Logger.getLogger(ChatServerResource.class.getName());
59 public static void main(String... args) throws Exception {
60 ResourceConfig rc = new ResourceConfig(ChatServerResource.class);
61 GrizzlyHttpContainer c = ContainerFactory.createContainer(GrizzlyHttpContainer.class, rc);
62 Closeable s = Launcher.showURL(
63 "bck2brwsr", ChatClient.class.getClassLoader(),
64 "/org/apidesign/bck2brwsr/demo/serverside/chat.html"
66 Launcher l = (Launcher) s;
67 Callable<?> f = (Callable<?>) l;
68 HttpServer server = (HttpServer) f.call();
69 ServerConfiguration conf = server.getServerConfiguration();
70 conf.addHttpHandler(c, "/chat");
75 private List<Message> msgs = new ArrayList<>();
77 Message welcome = new Message(Context.findDefault(Message.class));
78 welcome.setUser("system");
79 welcome.setComment("Welcome and enjoy!");
80 welcome.setWhen(System.currentTimeMillis());
84 private final Map<AsyncResponse, Long> awaiting = new IdentityHashMap<>();
86 @Produces(MediaType.APPLICATION_JSON)
87 @GET public synchronized void getResources(
88 @QueryParam("since") @DefaultValue("0") long since,
89 @Suspended AsyncResponse ar
91 Query q = new Query(Context.findDefault(ChatServerResource.class));
92 for (Message m : msgs) {
93 if (m.getWhen() >= since) {
94 q.getMessages().add(m);
97 if (!q.getMessages().isEmpty()) {
100 awaiting.put(ar, since);
104 private void handleAwaiting(long newest) {
105 assert Thread.holdsLock(this);
107 for (Map.Entry<AsyncResponse, Long> entry : awaiting.entrySet()) {
108 AsyncResponse ar = entry.getKey();
109 Long since = entry.getValue();
110 if (since <= newest) {
112 getResources(since, ar);
120 @Path("addComment") @GET
121 public synchronized Message publish(
122 @QueryParam("user") String user,
123 @QueryParam("comment") String comment
125 Message msg = new Message(Context.findDefault(ChatServerResource.class));
127 msg.setComment(comment);
128 msg.setWhen(System.currentTimeMillis());
130 handleAwaiting(msg.getWhen());