public final void handleNewMessages(final FermatMessage fermatMessage) {
try {
final Gson gson = new Gson();
final String jsonMessage = fermatMessage.getContent();
final NetworkServiceMessage networkServiceMessage =
gson.fromJson(jsonMessage, NetworkServiceMessage.class);
switch (networkServiceMessage.getMessageType()) {
case INFORMATION:
// update the request to processing receive state with the given action.
final InformationMessage informationMessage =
gson.fromJson(jsonMessage, InformationMessage.class);
receiveInformationMessage(informationMessage);
System.out.println(
" CPR NS - Information Message Received: " + informationMessage.toString());
break;
case REQUEST:
// create the request in processing receive state.
final RequestMessage requestMessage = gson.fromJson(jsonMessage, RequestMessage.class);
receiveCryptoPaymentRequest(requestMessage);
System.out.println(" CPR NS - Request Message Received: " + requestMessage.toString());
break;
}
} catch (Exception e) {
reportUnexpectedException(e);
}
}
/**
* Construct a DatabaseTableRecord whit the values of the a FermatMessage pass by parameter
*
* @param incomingTemplateNetworkServiceMessage the contains the values
* @return DatabaseTableRecord whit the values
*/
private DatabaseTableRecord constructFrom(FermatMessage incomingTemplateNetworkServiceMessage) {
/*
* Create the record to the entity
*/
DatabaseTableRecord entityRecord = getDatabaseTable().getEmptyRecord();
/*
* Set the entity values
*/
entityRecord.setStringValue(
CommunicationNetworkServiceDatabaseConstants.INCOMING_MESSAGES_ID_COLUMN_NAME,
incomingTemplateNetworkServiceMessage.getId().toString());
entityRecord.setStringValue(
CommunicationNetworkServiceDatabaseConstants.INCOMING_MESSAGES_SENDER_ID_COLUMN_NAME,
incomingTemplateNetworkServiceMessage.getSender().toString());
entityRecord.setStringValue(
CommunicationNetworkServiceDatabaseConstants.INCOMING_MESSAGES_RECEIVER_ID_COLUMN_NAME,
incomingTemplateNetworkServiceMessage.getReceiver().toString());
entityRecord.setStringValue(
CommunicationNetworkServiceDatabaseConstants.INCOMING_MESSAGES_TEXT_CONTENT_COLUMN_NAME,
incomingTemplateNetworkServiceMessage.getContent());
entityRecord.setStringValue(
CommunicationNetworkServiceDatabaseConstants.INCOMING_MESSAGES_TYPE_COLUMN_NAME,
incomingTemplateNetworkServiceMessage.getFermatMessageContentType().getCode());
if (incomingTemplateNetworkServiceMessage.getShippingTimestamp() != null) {
entityRecord.setLongValue(
CommunicationNetworkServiceDatabaseConstants
.OUTGOING_MESSAGES_SHIPPING_TIMESTAMP_COLUMN_NAME,
incomingTemplateNetworkServiceMessage.getShippingTimestamp().getTime());
} else {
entityRecord.setLongValue(
CommunicationNetworkServiceDatabaseConstants
.OUTGOING_MESSAGES_SHIPPING_TIMESTAMP_COLUMN_NAME,
new Long(0));
}
if (incomingTemplateNetworkServiceMessage.getDeliveryTimestamp() != null) {
entityRecord.setLongValue(
CommunicationNetworkServiceDatabaseConstants
.INCOMING_MESSAGES_SHIPPING_TIMESTAMP_COLUMN_NAME,
incomingTemplateNetworkServiceMessage.getDeliveryTimestamp().getTime());
} else {
entityRecord.setLongValue(
CommunicationNetworkServiceDatabaseConstants
.INCOMING_MESSAGES_DELIVERY_TIMESTAMP_COLUMN_NAME,
new Long(0));
}
entityRecord.setStringValue(
CommunicationNetworkServiceDatabaseConstants.INCOMING_MESSAGES_STATUS_COLUMN_NAME,
incomingTemplateNetworkServiceMessage.getFermatMessagesStatus().getCode());
/*
* return the new table record
*/
return entityRecord;
}
/**
* (non-Javadoc)
*
* @see FermatEventHandler#handleEvent(FermatEvent)
* @param platformEvent
* @throws Exception
*/
@Override
public void handleEvent(FermatEvent platformEvent) throws FermatException {
if (platformEvent.getSource() == NetworkServiceChatNetworkServicePluginRoot.EVENT_SOURCE) {
// System.out.println("CompleteComponentConnectionRequestNotificationEventHandler -
// handleEvent platformEvent =" + platformEvent.toString());
// System.out.println("NetworkServiceChatNetworkServicePluginRoot - NOTIFICACION EVENTO
// MENSAJE RECIBIDO!!!!");
/*
* Get the message receive
*/
NewNetworkServiceMessageReceivedNotificationEvent
newNetworkServiceMessageReceivedNotificationEvent =
(NewNetworkServiceMessageReceivedNotificationEvent) platformEvent;
FermatMessage fermatMessageReceive =
(FermatMessage) newNetworkServiceMessageReceivedNotificationEvent.getData();
/*
* Get the content of the message like a JsonObject
*/
JsonObject jsonMsjContent = parser.parse(fermatMessageReceive.getContent()).getAsJsonObject();
/*
* Extract the type of content of the message
*/
ChatMessageTransactionType chatMessageTransactionType =
gson.fromJson(
jsonMsjContent.get(ChatTransmissionJsonAttNames.MSJ_CONTENT_TYPE),
ChatMessageTransactionType.class);
/*
* Process the messages for his type
*/
if (messagesProcessorsRegistered.containsKey(chatMessageTransactionType)) {
messagesProcessorsRegistered
.get(chatMessageTransactionType)
.processingMessage(fermatMessageReceive, jsonMsjContent);
} else {
System.out.println(
"NetworkServiceChatNetworkServicePluginRoot - CompleteComponentConnectionRequestNotificationEventHandler - message type no supported = "
+ chatMessageTransactionType);
}
}
}
/**
* Notify the client when a incoming message is receive by the
* incomingTemplateNetworkServiceMessage ant fire a new event
*
* @param incomingMessage received
*/
private void onMessageReceived(FermatMessage incomingMessage) {
System.out.println("CommunicationNetworkServiceLocal - onMessageReceived ");
System.out.println(incomingMessage.getContent());
/*
* set the last message received
*/
this.lastMessageReceived = incomingMessage;
/** Put the message on a event and fire new event */
FermatEvent fermatEvent =
eventManager.getNewEvent(P2pEventType.NEW_NETWORK_SERVICE_MESSAGE_RECEIVE_NOTIFICATION);
fermatEvent.setSource(AssetTransmissionNetworkServicePluginRoot.EVENT_SOURCE);
((NewNetworkServiceMessageReceivedNotificationEvent) fermatEvent).setData(incomingMessage);
((NewNetworkServiceMessageReceivedNotificationEvent) fermatEvent)
.setNetworkServiceTypeApplicant(networkServiceTypePluginRoot);
eventManager.raiseEvent(fermatEvent);
}
/**
* 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()));
}
}
/**
* Decode a FermatMessage
*
* @param fermatMessage
* @return
*/
public static JsonObject decodeMsjContent(FermatMessage fermatMessage) {
return parser.parse(fermatMessage.getContent()).getAsJsonObject();
}
@Override
protected final void handleNewMessages(FermatMessage message) throws FermatException {
System.out.println(
"******************* Crypto Payment Request messages arrived: " + message.getContent());
((CryptoPaymentRequestNetworkServicePluginRoot) networkService).handleNewMessages(message);
}