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PQT_Gestionnaire_vent_stock
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Code Issues Releases Wiki Activity

Module Client, service Connexion : ajout code du service + classes utilisées dans le code

This commit is contained in:
Notmoo-PC\Notmoo 2017-08-23 20:30:30 +02:00
parent e6af406d63
commit d2c89a31ae
7 changed files with 167 additions and 53 deletions
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86
Workspace/client/src/main/java/com/pqt/client/module/connection/ConnectionService.java
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@ -1,46 +1,66 @@
package com.pqt.client.module.connection;
import com.pqt.client.module.connection.listeners.IConnectionListener;
import com.pqt.client.module.connection.senders.HttpTextSender;
import com.pqt.client.module.connection.senders.ITextSender;
import java.util.concurrent.*;
//TODO écrire contenu méthodes
//TODO écrire javadoc
//TODO add log lines?
public class ConnectionService {
public boolean isConnectedToServer() {
return false;
private String serverUrl;
private ExecutorService executor;
private ITextSender textSender;
public ConnectionService(String serverUrl) {
executor = new ThreadPoolExecutor(1, 1, 1000,
TimeUnit.SECONDS, new LinkedBlockingQueue<>());
this.serverUrl = serverUrl;
this.textSender = new HttpTextSender();
}
public String getServerUrl() {
return serverUrl;
}
public void connectToServer(String ip_address) {
}
public void disconnectFromServer() {
}
public String getCurrentServerIpAddress() {
return null;
}
public void start() {
}
public void stop() {
}
public void sendText(String text) {
}
public void addListener(IConnectionListener listener) {
}
public void removeListener(IConnectionListener listener) {
public void setServerUrl(String url){
this.serverUrl = url;
}
/**
* Arrête le service d'envoi.
* <p/>
* <b>Si ce service est arrêté, il ne sera plus possible de l'utiliser, et ne pourra pas être redémarré</b>. Une
* autre isntance devra être utilisée pour pouvoir recommencer à se servir de ce service.
* <p/>
* Si {@code force} vaut true, le service tentera d'interrompre tous les envois de texte en cours, même s'il ne
* sont pas terminés. Sinon, le service attendra que tous les envois en cours soient terminé avant de s'arrêter, mais
* n'acceptera pas de nouveaux envois.
* @param force {@code true} si l'arrêt du service doit être forcé, {@code false} sinon
*/
public void stop(boolean force) {
if(executor!=null)
if(force)
executor.shutdownNow();
else
executor.shutdown();
}
/**
* Envoie la chaîne de caractères {@code text} au serveur de donnée correspondant à l'URL {@link #getServerUrl()}, et
* utilise {@code listener} pour notifier l'avancement de l'envoi.
*
* @param text texte à envoyer
* @param listener listener à utiliser pour notifier l'avancement de l'envoi (voir {@link IConnectionListener})
* @throws IllegalStateException Si l'url du serveur vaut {@code null} (à spécifier à la constructyion ou avec
* {@link #setServerUrl(String)}, ou si le service à été arrêté via la méthode {@link #stop(boolean)}.
*/
public void sendText(String text, IConnectionListener listener) throws IllegalStateException{
if(serverUrl==null)
throw new IllegalStateException("No url specified for data server");
if(executor.isShutdown() || executor.isTerminated())
throw new IllegalStateException("Service was shut down : unable to send text");
executor.submit(()->textSender.send(serverUrl, text, listener));
}
}

16
Workspace/client/src/main/java/com/pqt/client/module/connection/listeners/ConnectionListenerAdapter.java
View File

@ -1,7 +1,5 @@
package com.pqt.client.module.connection.listeners;
//TODO écrire contenu méthodes
//TODO écrire javadoc
public class ConnectionListenerAdapter implements IConnectionListener {
@ -10,6 +8,7 @@ public class ConnectionListenerAdapter implements IConnectionListener {
*
*
*/
@Override
public void onMessageReceivedEvent(String msg) {
}
@ -20,6 +19,7 @@ public class ConnectionListenerAdapter implements IConnectionListener {
*
*
*/
@Override
public void onConnectedEvent() {
}
@ -30,8 +30,20 @@ public class ConnectionListenerAdapter implements IConnectionListener {
*
*
*/
@Override
public void onDisconnectedEvent() {
}
/**
* @see com.pqt.client.module.connection.listeners.IConnectionListener#onTimeOutEvent()
*
*
*/
@Override
public void onTimeOutEvent() {
}
}

12
Workspace/client/src/main/java/com/pqt/client/module/connection/listeners/IConnectionFirerer.java
View File

@ -2,14 +2,16 @@ package com.pqt.client.module.connection.listeners;
public interface IConnectionFirerer {
public abstract void fireMessageReceivedEvent(String msg);
void fireMessageReceivedEvent(String msg);
public abstract void fireConnectedEvent();
void fireConnectedEvent();
public abstract void fireDisconnectedEvent();
void fireDisconnectedEvent();
public abstract void addListener(IConnectionListener listener);
void fireTimeOutEvent();
public abstract void removeListener(IConnectionListener listener);
void addListener(IConnectionListener listener);
void removeListener(IConnectionListener listener);
}

8
Workspace/client/src/main/java/com/pqt/client/module/connection/listeners/IConnectionListener.java
View File

@ -4,10 +4,12 @@ import java.util.EventListener;
public interface IConnectionListener extends EventListener {
public abstract void onMessageReceivedEvent(String msg);
void onMessageReceivedEvent(String msg);
public abstract void onConnectedEvent();
void onConnectedEvent();
public abstract void onDisconnectedEvent();
void onDisconnectedEvent();
void onTimeOutEvent();
}

38
Workspace/client/src/main/java/com/pqt/client/module/connection/listeners/SimpleConnectionFirerer.java
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@ -1,49 +1,67 @@
package com.pqt.client.module.connection.listeners;
//TODO écrire contenu méthodes
//TODO écrire javadoc
import javax.swing.event.EventListenerList;
import java.util.Arrays;
public class SimpleConnectionFirerer implements IConnectionFirerer {
private EventListenerList listenerList;
public SimpleConnectionFirerer() {
listenerList = new EventListenerList();
}
/**
* @see com.pqt.client.module.connection.listeners.IConnectionFirerer#fireMessageReceivedEvent(String)
*
*
*
*/
@Override
public void fireMessageReceivedEvent(String msg) {
Arrays.stream(listenerList.getListeners(IConnectionListener.class)).forEach(listener->listener.onMessageReceivedEvent(msg));
}
/**
* @see com.pqt.client.module.connection.listeners.IConnectionFirerer#fireConnectedEvent()
*/
@Override
public void fireConnectedEvent() {
Arrays.stream(listenerList.getListeners(IConnectionListener.class)).forEach(IConnectionListener::onConnectedEvent);
}
/**
* @see com.pqt.client.module.connection.listeners.IConnectionFirerer#fireDisconnectedEvent()
*/
@Override
public void fireDisconnectedEvent() {
Arrays.stream(listenerList.getListeners(IConnectionListener.class)).forEach(IConnectionListener::onDisconnectedEvent);
}
/**
* @see com.pqt.client.module.connection.listeners.IConnectionFirerer#fireTimeOutEvent()
*/
@Override
public void fireTimeOutEvent() {
Arrays.stream(listenerList.getListeners(IConnectionListener.class)).forEach(IConnectionListener::onDisconnectedEvent);
}
/**
/**
* @see com.pqt.client.module.connection.listeners.IConnectionFirerer#addListener(com.pqt.client.module.connection.listeners.IConnectionListener)
*/
@Override
public void addListener(IConnectionListener listener) {
listenerList.add(IConnectionListener.class, listener);
}
/**
* @see com.pqt.client.module.connection.listeners.IConnectionFirerer#removeListener(com.pqt.client.module.connection.listeners.IConnectionListener)
*/
@Override
public void removeListener(IConnectionListener listener) {
listenerList.remove(IConnectionListener.class, listener);
}
}

53
Workspace/client/src/main/java/com/pqt/client/module/connection/senders/HttpTextSender.java Normal file
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@ -0,0 +1,53 @@
package com.pqt.client.module.connection.senders;
import com.pqt.client.module.connection.listeners.IConnectionListener;
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
public class HttpTextSender implements ITextSender{
@Override
public void send(String url, String text, IConnectionListener listener) {
try {
HttpURLConnection con = (HttpURLConnection) new URL(url).openConnection();
con.setRequestMethod("GET");
con.setRequestProperty("Content-Type", "application/json");
con.setConnectTimeout(5000);
con.setReadTimeout(5000);
con.setInstanceFollowRedirects(true);
String params = URLEncoder.encode("message="+text, "UTF-8");
con.setDoOutput(true);
try(DataOutputStream out = new DataOutputStream(con.getOutputStream())) {
out.writeBytes(params);
out.flush();
}
con.connect();
listener.onConnectedEvent();
try(BufferedReader in = new BufferedReader(
new InputStreamReader(con.getInputStream()))) {
StringBuilder content = new StringBuilder();
String inputLine;
while ((inputLine = in.readLine()) != null) {
content.append(inputLine);
}
listener.onMessageReceivedEvent(content.toString());
}
con.disconnect();
}catch (java.net.SocketTimeoutException e){
listener.onTimeOutEvent();
}catch (IOException e) {
e.printStackTrace();
}finally {
listener.onDisconnectedEvent();
}
}
}

7
Workspace/client/src/main/java/com/pqt/client/module/connection/senders/ITextSender.java Normal file
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@ -0,0 +1,7 @@
package com.pqt.client.module.connection.senders;
import com.pqt.client.module.connection.listeners.IConnectionListener;
public interface ITextSender {
void send(String url, String text, IConnectionListener listener);
}