Commit | Line | Data |
---|---|---|
2c648f75 JB |
1 | import java.io.*; |
2 | import java.net.*; | |
3 | import java.util.*; | |
4 | ||
5 | public class SocketClient { | |
6 | BufferedReader lecture; // pour le flot d'entrée venant du serveur | |
7 | PrintWriter ecriture; // pour le flot de sortie vers le serveur | |
8 | Socket sock; // le socket client | |
9 | ||
10 | public SocketClient() { | |
11 | // établie une connexion au serveur par un appel | |
12 | // à connexionServeur() | |
13 | connexionServeur("localhost", 5000); | |
14 | } | |
15 | ||
16 | public SocketClient(String adresseIPServeur, int portServeur) { | |
17 | // établie une connexion au serveur par un appel | |
18 | // à connexionServeur() | |
19 | connexionServeur(adresseIPServeur, portServeur); | |
20 | } | |
21 | ||
22 | private void connexionServeur(String adresseIPServeur, int portServeur) { | |
23 | // créer un objet socket lié au socket serveur et l'affecte à sock | |
24 | // puis établie les chaînages de flot nécessaires | |
25 | // pour l'envoi et la reception de messages | |
26 | try { | |
27 | sock = new Socket(adresseIPServeur, portServeur); | |
28 | } | |
29 | catch (IOException e) { | |
30 | System.err.println("IOException: " + e); | |
31 | } | |
32 | InputStream IStream = null; | |
33 | try { | |
34 | IStream = sock.getInputStream(); | |
35 | } | |
36 | catch (IOException e) { | |
37 | System.err.println("IOException: " + e); | |
38 | } | |
39 | InputStreamReader IMesg = new InputStreamReader(IStream); | |
40 | lecture = new BufferedReader(IMesg); | |
41 | ||
42 | OutputStream OStream = null; | |
43 | try { | |
44 | OStream = sock.getOutputStream(); | |
45 | } | |
46 | catch (IOException e) { | |
47 | System.err.println("IOException: " + e); | |
48 | } | |
49 | ecriture = new PrintWriter(OStream); | |
50 | } | |
51 | ||
52 | /** | |
53 | * Send a message on the opened client socket | |
54 | * @param msg a string containing the message to send | |
55 | */ | |
56 | public synchronized void sendMsg(String msg) { | |
58312685 | 57 | //NOTE: it's not really required with one socket writer thread. |
2c648f75 JB |
58 | while (msg.isEmpty()) { |
59 | try { | |
60 | wait(); | |
61 | } | |
62 | catch (InterruptedException e) { | |
63 | System.err.println("InterruptedException: " + e); | |
64 | } | |
65 | } | |
66 | ecriture.println(msg); | |
67 | ecriture.flush(); | |
68 | notifyAll(); | |
69 | } | |
70 | ||
71 | /** | |
72 | * Receive a message sent on the opened client socket | |
73 | * @return a string containing the received message | |
74 | */ | |
75 | public String receiveMsg() { | |
76 | String line = new String(); | |
77 | try { | |
78 | //FIXME: read only the line before the ending newline | |
79 | line = lecture.readLine(); | |
80 | } | |
81 | catch (IOException e) { | |
82 | System.err.println("IOException: " + e); | |
83 | } | |
84 | return line; | |
85 | } | |
86 | ||
87 | /** | |
88 | * Close all opened I/O streams attached to this object instance | |
89 | */ | |
90 | public void closeRWIO() { | |
91 | ecriture.close(); | |
92 | try { | |
93 | lecture.close(); | |
94 | } | |
95 | catch (IOException e) { | |
96 | System.err.println("IOException: " + e); | |
97 | } | |
98 | } | |
99 | ||
100 | } // fin classe SocketClient |