lightcontainer/FileFrontEnd
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- Systèeme de timer détectant les SBE innactif et les timeout si ceux-ci ne donnent pas signe d'activité après 50 secondes

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This commit is contained in:
Benjamin 2022-03-19 16:48:59 +01:00
parent a287bbdb59
commit 3cf0f66ae9
8 changed files with 159 additions and 14 deletions
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7
app/src/main/java/lightcontainer/App.java
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@ -3,6 +3,7 @@
*/
package lightcontainer;
import lightcontainer.domains.FFETimer;
import lightcontainer.domains.server.MulticastServerListener;
import lightcontainer.domains.server.UnicastServerListener;
import lightcontainer.interfaces.ProtocolRepository;
@ -17,6 +18,7 @@ import lightcontainer.storage.JsonAdapter;
import lightcontainer.storage.Repository;
import java.nio.file.Paths;
import java.util.Timer;
public class App {
@ -36,6 +38,11 @@ public class App {
FileFrontEnd ffe = new FileFrontEnd(clientRep, storeRep, protocolRep);
new UnicastServerListener(ffe, clientRep, protocolRep, repositoryStorage, repositoryStorage.getUnicastPort());
new MulticastServerListener(ffe, storeRep, protocolRep, repositoryStorage.getMulticastIp(), repositoryStorage.getMulticastPort(), repositoryStorage.getNetworkInterface());
// S'occupe de distribué les timeout pour les SBE plus connecté et donc de Timeout les clients
Timer ffeTimer = new Timer();
ffeTimer.schedule(new FFETimer(storeRep), 50000, 50000);
}
private static void initProtocols(Repository repositoryStorage, ProtocolRepository protocolRep) {

34
app/src/main/java/lightcontainer/domains/FFETimer.java Normal file
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@ -0,0 +1,34 @@
package lightcontainer.domains;
import lightcontainer.interfaces.MulticastSPR;
import java.time.LocalDateTime;
import java.time.temporal.ChronoUnit;
import java.util.TimerTask;
/**
* Class s'occupant de gérer les timeout des différents SBE
*/
public class FFETimer extends TimerTask {
private final MulticastSPR processorRepository;
public FFETimer(MulticastSPR processorRepository) {
this.processorRepository = processorRepository;
}
@Override
public void run() {
System.out.println("Timer 1");
for (String domain : processorRepository.getDomains()) {
LocalDateTime lastAnnounce = processorRepository.getLastAnnounce(domain);
long secondBetween = Math.abs(ChronoUnit.SECONDS.between(lastAnnounce, LocalDateTime.now()));
System.out.println("Timer 2 : " + secondBetween);
if (secondBetween > 50) {
System.out.println("Timer 3");
processorRepository.closeStore(domain);
}
}
}
}

22
app/src/main/java/lightcontainer/domains/client/StoreProcessor.java
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@ -8,7 +8,9 @@ import lightcontainer.protocol.ProtocolWriter;
import java.io.*;
import java.net.Socket;
import java.net.SocketException;
import java.nio.charset.StandardCharsets;
import java.time.LocalDateTime;
import java.util.Objects;
/**
@ -30,6 +32,7 @@ public class StoreProcessor extends Thread implements AutoCloseable {
private final Socket store;
private final String domain;
private boolean client_run;
private LocalDateTime lastAnnounce;
private BufferedReader reader;
private Context context;
@ -37,6 +40,7 @@ public class StoreProcessor extends Thread implements AutoCloseable {
private ProtocolWriter.ProtocolResult protocolResult;
private final ProtocolRepository protocolRep;
// Constructor
public StoreProcessor(Socket socket, String domain, StoreProcessorFFE ffe, ProtocolRepository protocolRep) {
this.domain = domain;
@ -94,8 +98,6 @@ public class StoreProcessor extends Thread implements AutoCloseable {
try {
protocolResult.write(this.store.getOutputStream());
} catch (IOException writeException) { // Si SBE fermé
System.out.println("STOPPER");
writeException.printStackTrace();
// Envoie au client que la requête n'a pu être traitée
alertAvailable(null);
break;
@ -188,6 +190,7 @@ public class StoreProcessor extends Thread implements AutoCloseable {
public void close() {
if (this.client_run) {
this.client_run = false;
System.out.println("[FERMETURE SBE] " + domain);
// TODO : Gérer déconnection (enlever du repo et prévenir client et FileFrontEnd)
}
}
@ -218,4 +221,19 @@ public class StoreProcessor extends Thread implements AutoCloseable {
public String getDomain() {
return this.domain;
}
/**
* Permet de mettre à jours la dernière annonce de ce SBE au FFE
*/
public void setLastAnnounce(LocalDateTime lastAnnounce) {
this.lastAnnounce = lastAnnounce;
}
/**
* Permet de mettre à jours la dernière annonce de ce SBE au FFE
*/
public LocalDateTime getLastAnnounce() {
return lastAnnounce;
}
}

2
app/src/main/java/lightcontainer/domains/server/MulticastServerListener.java
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@ -94,6 +94,8 @@ public class MulticastServerListener implements Runnable {
// Add the store processor to its repository
this.repository.addStore(storeProcessor);
}
// Contient déjà le SBE donc maj de la dernière activité
this.repository.updateLastAnnounce(readerResult.getDomain());
} catch (IOException | ClassCastException exception) {
System.out.println("[ERREUR] Une SBE essaye de se connecter avec une mauvaise configuration : " + exception.getMessage());
}

22
app/src/main/java/lightcontainer/interfaces/MulticastSPR.java
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@ -5,6 +5,9 @@ import lightcontainer.domains.client.StoreProcessor;
import lightcontainer.domains.server.MulticastServerListener;
import lightcontainer.repository.StoreProcessorRepository;
import java.time.LocalDateTime;
import java.util.Collection;
/**
* A communication interface between a {@link StoreProcessor} and the {@link StoreProcessorRepository}.
*/
@ -42,4 +45,23 @@ public interface MulticastSPR {
* @param domain Le domaine du SBE à déconnecter
*/
void closeStore(String domain);
/**
* Permet de mettre à jours la dernière annonce de ce SBE au FFE
* @param domain Le domain s'annoncant
*/
void updateLastAnnounce(String domain);
/**
* Permet de récupérer les noms des domaines connectés au FFE
* @return Les noms des domaines connectés au FFE
*/
Collection<String> getDomains();
/**
* Permet de récupérer la dernière annonce d'un SBE
* @return La dernière annonce d'un SBE
*/
LocalDateTime getLastAnnounce(String domain);
}

1
app/src/main/java/lightcontainer/repository/FileFrontEnd.java
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@ -47,7 +47,6 @@ public class FileFrontEnd implements ClientHandlerFFE, StoreProcessorFFE {
*/
@Override
public void onStoreAvailable(StoreProcessor store, ProtocolWriter.ProtocolResult response) {
// TODO : Chercher une tâche appropriée
Iterator<Task> it = tasks.iterator();
while (it.hasNext()) {
Task task = it.next();

60
app/src/main/java/lightcontainer/repository/StoreProcessorRepository.java
View File

@ -5,6 +5,8 @@ import lightcontainer.domains.client.StoreProcessor;
import lightcontainer.domains.server.MulticastServerListener;
import lightcontainer.interfaces.MulticastSPR;
import java.time.LocalDateTime;
import java.util.Collection;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
@ -123,19 +125,54 @@ public class StoreProcessorRepository implements AutoCloseable, MulticastSPR {
*/
@Override
public void closeStore(String domain) {
Iterator<StoreProcessor> it = this.handlers.iterator();
System.out.println("1 Nombre de SBE : " + handlers.size());
while (it.hasNext()) {
StoreProcessor storeProcessor = it.next();
if (storeProcessor.getDomain().equals(domain)) {
storeProcessor.close();
it.remove();
return;
}
StoreProcessor storeProcessor = getSBE(domain);
if (storeProcessor != null) {
storeProcessor.close();
handlers.remove(storeProcessor);
}
}
/**
* Permet de mettre à jours la dernière annonce de ce SBE au FFE
*
* @param domain Le domain s'annoncant
*/
@Override
public void updateLastAnnounce(String domain) {
StoreProcessor storeProcessor = getSBE(domain);
if (storeProcessor != null) {
storeProcessor.setLastAnnounce(LocalDateTime.now());
}
}
/**
* Permet de récupérer les noms des domaines connectés au FFE
*
* @return Les noms des domaines connectés au FFE
*/
@Override
public Collection<String> getDomains() {
Set<String> domains = new HashSet<>();
for (StoreProcessor domain : handlers) {
domains.add(domain.getDomain());
}
return domains;
}
/**
* Permet de récupérer la dernière annonce d'un SBE
*
* @param domain
* @return La dernière annonce d'un SBE
*/
@Override
public LocalDateTime getLastAnnounce(String domain) {
StoreProcessor storeProcessor = getSBE(domain);
return storeProcessor == null ? null : storeProcessor.getLastAnnounce();
}
/**
* AutoClosable Function
* Closes all StoreProcessor stored in this repository and deallocates all resources.
@ -149,4 +186,7 @@ public class StoreProcessorRepository implements AutoCloseable, MulticastSPR {
// Close each client.
this.handlers.forEach(StoreProcessor::close);
}
}

25
app/src/main/resources/appdata.json
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@ -1 +1,24 @@
{"unicast_port":8000,"multicast_ip":"224.66.66.1","multicast_port":15502,"network_interface":"wlp1s0","tls":true,"storagePath":"/home/benjamin/ffe","users":[{"name":"benjamin","password":"$2a$10$I4vHt83CTYuQCP7xvZ04Ne7Vb0cswBiVZhV0n23k9FCxoH0ny9fZG","aes_key":"mAP6izUBUhBxIkakH2yB/TplhRz1OQV5Fp6HQmhywns=","files":[{"name":"README.md","fileNameSalt":"atK0eGo/J8IBOTCpIZpWow==","size":17,"iv":"fXPzefxl0cO4Hf02Qwi+BA==","storage":["lightcontainerSB01"]}]},{"name":"aaaaa","password":"$2a$10$nDCEDVwbNO/YDQ4qdRcxfuES4.aboluLzWouXXsk6vDoaWocv516W","aes_key":"kYtwHy9qJBg30WS6axWTFGVE0Ge5kpYiJJlC+COIEI4=","files":[{"name":"ca.crt","fileNameSalt":"qz6FoPGyJJ8Hy+1LIouvZA==","size":4207,"iv":"8v2H+cOzztD++NXHXw5Ofw==","storage":["lightcontainerSB01"]}]}]}
{
"unicast_port": 8000,
"multicast_ip": "224.66.66.1",
"multicast_port": 15502,
"network_interface": "wlp1s0",
"tls": true,
"storagePath": "/home/benjamin/ffe",
"users": [
{
"name": "benjamin",
"password": "$2a$10$I4vHt83CTYuQCP7xvZ04Ne7Vb0cswBiVZhV0n23k9FCxoH0ny9fZG",
"aes_key": "mAP6izUBUhBxIkakH2yB/TplhRz1OQV5Fp6HQmhywns=",
"files": [
]
},
{
"name": "aaaaa",
"password": "$2a$10$nDCEDVwbNO/YDQ4qdRcxfuES4.aboluLzWouXXsk6vDoaWocv516W",
"aes_key": "kYtwHy9qJBg30WS6axWTFGVE0Ge5kpYiJJlC+COIEI4=",
"files": [
]
}
]
}