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SRC.java
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SRC.java
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// Server REST Communication
import java.io.*;
import java.net.*;
import java.util.HashMap;
import java.util.Map;
class SRC {
public static String serverURL = "http://localhost:8080/MyProject_war_exploded/";
public static Message httpRequest(String resource, String method, Map<String, String> header, String content) {
// request
URL url = null;
HttpURLConnection huc = null;
try {
url = new URL(serverURL + resource);
} catch (MalformedURLException exc) {
exc.printStackTrace();
}
try {
huc = (HttpURLConnection) url.openConnection();
} catch (IOException exc) {
exc.printStackTrace();
}
try {
huc.setRequestMethod(method);
} catch (ProtocolException exc) {
exc.printStackTrace();
}
if (header != null) {
for (Map.Entry<String, String> obj : header.entrySet()) {
huc.setRequestProperty(obj.getKey(), obj.getValue());
}
}
if (content != null) {
huc.setDoOutput(true);
try {
OutputStream out = huc.getOutputStream();
out.write(content.getBytes());
out.close();
} catch (IOException exc) {
exc.printStackTrace();
}
}
// response
if (huc.getContentLengthLong() > 0) {
String response = "";
int tmp;
try {
InputStream in = huc.getInputStream();
while ((tmp = in.read()) != -1) {
response += (char) tmp;
}
in.close();
} catch (IOException exc) {
exc.printStackTrace();
}
return (Message) Json.fromJson(response, Message.class);
}
return null;
}
/* **************************************** USERS **************************************** */
public static MessageType addUser(User user) {
String content = Json.toJson(user);
HashMap<String, String> header = new HashMap<String, String>();
header.put("Content-Type", "text/plain");
header.put("Content-Length", Integer.toString(content.getBytes().length));
Message response = httpRequest("add_user", "POST", header, content);
return response == null ? null : response.getType();
}
public static MessageType removeUser(String key) {
Message response = httpRequest("user_list/" + key, "DELETE", null, null);
return response == null ? null : response.getType();
}
/* **************************************** GAMES **************************************** */
public static Game[] gameList() {
Message response = httpRequest("game_list", "GET", null, null);
return (Game[]) Json.fromJson(response.getBody(), Game[].class);
}
public static MessageType addGame(Game game) {
String content = Json.toJson(game);
HashMap<String, String> header = new HashMap<String, String>();
header.put("Content-Type", "text/plain");
header.put("Content-Length", Integer.toString(content.getBytes().length));
Message response = httpRequest("add_game", "POST", header, content);
return response == null ? null : response.getType();
}
public static Message viewGame(String name) {
return httpRequest("game_list/" + name, "GET", null, null);
}
public static MessageType addUser(String name, User user) {
String content = Json.toJson(user);
HashMap<String, String> header = new HashMap<String, String>();
header.put("Content-Type", "text/plain");
header.put("Content-Length", Integer.toString(content.getBytes().length));
Message response = httpRequest("game_list/" + name, "PUT", header, content);
return response == null ? null : response.getType();
}
public static MessageType removeUser(String game, String user) {
Message response = httpRequest("game_list/" + game + "/" + user, "DELETE", null, null);
return response == null ? null : response.getType();
}
}