/**
* Handles events that indicate a connection to been established between two network services and
* prepares all objects to work with this new connection
*
* @param remoteComponentProfile
*/
public final void handleEstablishedRequestedNetworkServiceConnection(
PlatformComponentProfile remoteComponentProfile) {
try {
/*
* Get the active connection
*/
CommunicationsVPNConnection communicationsVPNConnection =
communicationsClientConnection.getCommunicationsVPNConnectionStablished(
platformComponentProfile.getNetworkServiceType(), remoteComponentProfile);
// Validate the connection
if (communicationsVPNConnection != null && communicationsVPNConnection.isActive()) {
/*
* Instantiate the local reference
*/
CommunicationNetworkServiceLocal communicationNetworkServiceLocal =
buildCommunicationNetworkServiceLocal(remoteComponentProfile);
/*
* Instantiate the remote reference
*/
CommunicationNetworkServiceRemoteAgent communicationNetworkServiceRemoteAgent =
buildCommunicationNetworkServiceRemoteAgent(communicationsVPNConnection);
/*
* Register the observer to the observable agent
*/
communicationNetworkServiceRemoteAgent.addObserver(communicationNetworkServiceLocal);
/*
* Start the service thread
*/
communicationNetworkServiceRemoteAgent.start();
/*
* Add to the cache
*/
communicationNetworkServiceLocalsCache.put(
remoteComponentProfile.getIdentityPublicKey(), communicationNetworkServiceLocal);
communicationNetworkServiceRemoteAgentsCache.put(
remoteComponentProfile.getIdentityPublicKey(), communicationNetworkServiceRemoteAgent);
}
} catch (final Exception e) {
errorManager.reportUnexpectedPluginException(
pluginVersionReference,
UnexpectedPluginExceptionSeverity.DISABLES_SOME_FUNCTIONALITY_WITHIN_THIS_PLUGIN,
e);
}
}
/** Stop the internal threads */
public void stop() {
// Stop the Threads
toReceive.interrupt();
toSend.interrupt();
// Disconnect from the service
communicationsVPNConnection.close();
}
/**
* Handles events that indicate a connection to been established between two network services and
* prepares all objects to work with this new connection
*
* @param remoteComponentProfile
*/
public void handleEstablishedRequestedNetworkServiceConnection(
PlatformComponentProfile remoteComponentProfile) {
try {
/*
* Get the active connection
*/
CommunicationsVPNConnection communicationsVPNConnection =
communicationsClientConnection.getCommunicationsVPNConnectionStablished(
platformComponentProfile.getNetworkServiceType(), remoteComponentProfile);
// Validate the connection
if (communicationsVPNConnection != null && communicationsVPNConnection.isActive()) {
/*
* Instantiate the local reference
*/
CommunicationNetworkServiceLocal communicationNetworkServiceLocal =
new CommunicationNetworkServiceLocal(
remoteComponentProfile,
errorManager,
eventManager,
outgoingMessageDao,
platformComponentProfile.getNetworkServiceType());
/*
* Instantiate the remote reference
*/
CommunicationNetworkServiceRemoteAgent communicationNetworkServiceRemoteAgent =
new CommunicationNetworkServiceRemoteAgent(
identity,
communicationsVPNConnection,
errorManager,
eventManager,
incomingMessageDao,
outgoingMessageDao);
/*
* Register the observer to the observable agent
*/
communicationNetworkServiceRemoteAgent.addObserver(communicationNetworkServiceLocal);
/*
* Start the service thread
*/
communicationNetworkServiceRemoteAgent.start();
/*
* Add to the cache
*/
communicationNetworkServiceLocalsCache.put(
remoteComponentProfile.getIdentityPublicKey(), communicationNetworkServiceLocal);
communicationNetworkServiceRemoteAgentsCache.put(
remoteComponentProfile.getIdentityPublicKey(), communicationNetworkServiceRemoteAgent);
}
} catch (Exception e) {
e.printStackTrace();
errorManager.reportUnexpectedPluginException(
Plugins.CHAT_NETWORK_SERVICE,
UnexpectedPluginExceptionSeverity.DISABLES_SOME_FUNCTIONALITY_WITHIN_THIS_PLUGIN,
new Exception("Can not get connection"));
}
}
/**
* This method read for new messages pending to send on the data base in the table <code>
* outbox_messages</code> and encrypt the message content, sing the message and send it
*/
public void processMessageToSend() {
try {
try {
Map<String, Object> filters = new HashMap<>();
filters.put(
CommunicationNetworkServiceDatabaseConstants.OUTGOING_MESSAGES_STATUS_COLUMN_NAME,
MessagesStatus.PENDING_TO_SEND.getCode());
filters.put(
CommunicationNetworkServiceDatabaseConstants.OUTGOING_MESSAGES_RECEIVER_ID_COLUMN_NAME,
communicationsVPNConnection.getRemoteParticipant().getIdentityPublicKey());
/*
* Read all pending message from database
*/
List<FermatMessage> messages = outgoingMessageDao.findAll(filters);
/*
* For each message
*/
for (FermatMessage message : messages) {
if (communicationsVPNConnection.isActive()
&& (message.getFermatMessagesStatus() != FermatMessagesStatus.SENT)) {
/*
* Encrypt the content of the message whit the remote network service public key
*/
((FermatMessageCommunication) message)
.setContent(
AsymmetricCryptography.encryptMessagePublicKey(
message.getContent(),
communicationsVPNConnection
.getRemoteParticipantNetworkService()
.getIdentityPublicKey()));
/*
* Sing the message
*/
String signature =
AsymmetricCryptography.createMessageSignature(
message.getContent(), eccKeyPair.getPrivateKey());
((FermatMessageCommunication) message).setSignature(signature);
/*
* Send the message
*/
communicationsVPNConnection.sendMessage(message);
/*
* Change the message and update in the data base
*/
((FermatMessageCommunication) message)
.setFermatMessagesStatus(FermatMessagesStatus.SENT);
outgoingMessageDao.update(message);
/*
* Put the message on a event and fire new event
*/
FermatEvent fermatEvent =
eventManager.getNewEvent(
P2pEventType.NEW_NETWORK_SERVICE_MESSAGE_SENT_NOTIFICATION);
fermatEvent.setSource(AssetIssuerActorNetworkServicePluginRoot.EVENT_SOURCE);
((NewNetworkServiceMessageSentNotificationEvent) fermatEvent).setData(message);
eventManager.raiseEvent(fermatEvent);
}
}
} catch (CantUpdateRecordDataBaseException e) {
errorManager.reportUnexpectedPluginException(
Plugins.BITDUBAI_DAP_ASSET_ISSUER_ACTOR_NETWORK_SERVICE,
UnexpectedPluginExceptionSeverity.DISABLES_SOME_FUNCTIONALITY_WITHIN_THIS_PLUGIN,
new Exception("Can not process messages to send. Error reason: " + e.getMessage()));
} catch (CantReadRecordDataBaseException e) {
errorManager.reportUnexpectedPluginException(
Plugins.BITDUBAI_DAP_ASSET_ISSUER_ACTOR_NETWORK_SERVICE,
UnexpectedPluginExceptionSeverity.DISABLES_SOME_FUNCTIONALITY_WITHIN_THIS_PLUGIN,
new Exception("Can not process messages to send. Error reason: " + e.getMessage()));
}
// Sleep for a time
toSend.sleep(CommunicationNetworkServiceRemoteAgent.SLEEP_TIME);
} catch (InterruptedException e) {
errorManager.reportUnexpectedPluginException(
Plugins.BITDUBAI_DAP_ASSET_ISSUER_ACTOR_NETWORK_SERVICE,
UnexpectedPluginExceptionSeverity.DISABLES_SOME_FUNCTIONALITY_WITHIN_THIS_PLUGIN,
new Exception("Can not sleep"));
}
}
/**
* This method process the message received and save on the data base in the table <code>
* incoming_messages</code> and notify all observers to the new messages received
*/
private void processMessageReceived() {
try {
// System.out.println("CommunicationNetworkServiceRemoteAgent -
// communicationsVPNConnection.isActive() = "+communicationsVPNConnection.isActive());
/** Verified the status of the connection */
if (communicationsVPNConnection.isActive()) {
// System.out.println("CommunicationNetworkServiceRemoteAgent -
// communicationsVPNConnection.getUnreadMessagesCount() =
// "+communicationsVPNConnection.getUnreadMessagesCount());
/** process all pending messages */
for (int i = 0; i < communicationsVPNConnection.getUnreadMessagesCount(); i++) {
/*
* Read the next message in the queue
*/
FermatMessage message = communicationsVPNConnection.readNextMessage();
/*
* Validate the message signature
*/
AsymmetricCryptography.verifyMessageSignature(
message.getSignature(),
message.getContent(),
communicationsVPNConnection
.getRemoteParticipantNetworkService()
.getIdentityPublicKey());
/*
* Decrypt the message content
*/
((FermatMessageCommunication) message)
.setContent(
AsymmetricCryptography.decryptMessagePrivateKey(
message.getContent(), eccKeyPair.getPrivateKey()));
/*
* Change to the new status
*/
((FermatMessageCommunication) message)
.setFermatMessagesStatus(FermatMessagesStatus.NEW_RECEIVED);
/*
* Save to the data base table
*/
incomingMessageDao.create(message);
/*
* Remove the message from the queue
*/
communicationsVPNConnection.removeMessageRead(message);
/*
* Notify all observer of this agent that Received a new message
*/
setChanged();
notifyObservers(message);
}
}
// Sleep for a time
toReceive.sleep(CommunicationNetworkServiceRemoteAgent.SLEEP_TIME);
} catch (InterruptedException e) {
errorManager.reportUnexpectedPluginException(
Plugins.BITDUBAI_DAP_ASSET_ISSUER_ACTOR_NETWORK_SERVICE,
UnexpectedPluginExceptionSeverity.DISABLES_SOME_FUNCTIONALITY_WITHIN_THIS_PLUGIN,
new Exception("Can not sleep"));
} catch (CantInsertRecordDataBaseException e) {
errorManager.reportUnexpectedPluginException(
Plugins.BITDUBAI_DAP_ASSET_ISSUER_ACTOR_NETWORK_SERVICE,
UnexpectedPluginExceptionSeverity.DISABLES_SOME_FUNCTIONALITY_WITHIN_THIS_PLUGIN,
new Exception("Can not process message received. Error reason: " + e.getMessage()));
}
}