/**
* Create an Action object
*
* @param context Android context
* @param messageTypeToListenTo the type of message that concern this action
* @param poll the poll to fill in this action
* @param timeOut the maximum time in millisecond that this action can last
*/
public AbstractAction(
Context context, String messageTypeToListenTo, ProtocolPoll poll, long timeOut) {
TAG = this.getClass().getSimpleName();
// Map of message received
this.messagesReceived = new HashMap<String, ProtocolMessageContainer>();
// Store some important entities that will be used in the actions
this.context = context;
this.poll = poll;
this.timeOut = timeOut;
for (Participant p : poll.getParticipants().values()) {
if (p.getUniqueId()
.equals(AndroidApplication.getInstance().getNetworkInterface().getMyUniqueId())) {
this.me = (ProtocolParticipant) p;
}
}
if (messageTypeToListenTo != null) {
// Subscribing to the messageArrived events to update immediately
LocalBroadcastManager.getInstance(context)
.registerReceiver(this.voteMessageReceiver, new IntentFilter(messageTypeToListenTo));
}
}
/**
* Method called when a received message has been processed and values contained in the message
* must be saved
*
* @param round Round to which the received message belongs
* @param sender the sender of the message
* @param message the message received
* @param exclude if the processing of the message done imply the exclusion of the participant
*/
public void savedProcessedMessage(
Round round, String sender, ProtocolMessageContainer message, boolean exclude) {
this.numberOfProcessedMessages++;
if (!messagesReceived.containsKey(sender)) {
messagesReceived.put(sender, message);
Log.d(
TAG,
"Message received from "
+ poll.getParticipants().get(sender).getIdentification()
+ " ("
+ sender
+ ") back from processing.");
}
}
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getStringExtra("action");
if (action == null || action.equals("")) {
return;
} else if (action.equals("left")) {
Participant p = poll.getParticipants().get(intent.getStringExtra("id"));
if (p != null) {
if (AbstractAction.this instanceof SetupRoundAction) {
poll.getCompletelyExcludedParticipants().put(p.getUniqueId(), p);
// notify exclusion
LocalBroadcastManager.getInstance(AndroidApplication.getInstance())
.sendBroadcast(
new Intent(BroadcastIntentTypes.proofVerificationFailed)
.putExtra("type", 2)
.putExtra("participant", p.getIdentification()));
Log.w(
TAG,
"Participant "
+ p.getIdentification()
+ " ("
+ p.getUniqueId()
+ ") went out of the network before submitting the setup value, so he was completely excluded (also from recovery).");
} else {
poll.getExcludedParticipants().put(p.getUniqueId(), p);
// notify exclusion
LocalBroadcastManager.getInstance(AndroidApplication.getInstance())
.sendBroadcast(
new Intent(BroadcastIntentTypes.proofVerificationFailed)
.putExtra("type", 3)
.putExtra("participant", p.getIdentification()));
Log.w(
TAG,
"Participant "
+ p.getIdentification()
+ " ("
+ p.getUniqueId()
+ ") was added to excluded list since he went out of the network.");
}
}
}
if (readyToGoToNextState() && !actionTerminated) {
goToNextState();
}
}
/**
* Indicate if conditions to go to next step are fulfilled
*
* @return true if conditions are fulfilled, false otherwise
*/
protected boolean readyToGoToNextState() {
Collection<Participant> activeParticipants = new ArrayList<Participant>();
for (Participant p : poll.getParticipants().values()) {
activeParticipants.add(p);
}
activeParticipants.removeAll(poll.getExcludedParticipants().values());
activeParticipants.removeAll(poll.getCompletelyExcludedParticipants().values());
for (Participant p : activeParticipants) {
if (!this.messagesReceived.containsKey(p.getUniqueId())) {
Log.w(
TAG,
"Message from " + p.getUniqueId() + " (" + p.getIdentification() + ") not received");
return false;
}
}
return true;
}
@Override
public void onReceive(Context context, Intent intent) {
if (actionTerminated) return;
// Get the message
ProtocolMessageContainer message =
(ProtocolMessageContainer) intent.getSerializableExtra("message");
String sender = intent.getStringExtra("sender");
if (messagesReceived.get(sender) != null
&& messagesReceived.get(sender).equals(message)) {
// when resending message, check if message differs from one received previously
Log.w(TAG, "Seems to receive a different message from same source !!!");
return;
}
// When a new message arrives, we re-execute the action of the step
if (actionTerminated) {
Log.w(TAG, "Action was called by an incoming message, but was already terminated");
return;
}
// Ignore messages from excluded participant
if (poll.getExcludedParticipants().containsKey(sender)) {
Log.w(TAG, "Ignoring message from previously excluded participant!");
return;
}
if (sender.equals(me.getUniqueId())) {
Log.d(TAG, "Message received from myself, not needed to process it.");
if (!messagesReceived.containsKey(sender)) {
messagesReceived.put(sender, message);
Log.d(TAG, "Message received from " + sender);
}
if (readyToGoToNextState()) goToNextState();
return;
}
numberMessagesReceived++;
Log.d(
TAG,
"Message received from "
+ poll.getParticipants().get(sender).getIdentification()
+ " ("
+ sender
+ "). Going to process it");
Round round = null;
if (AbstractAction.this instanceof SetupRoundAction) {
round = Round.setup;
} else if (AbstractAction.this instanceof CommitmentRoundAction) {
round = Round.commit;
poll.getParticipants().get(sender).setHasVoted(true);
// notify UI about new incomed vote
Intent i = new Intent(BroadcastIntentTypes.newIncomingVote);
i.putExtra("votes", numberMessagesReceived);
i.putExtra("options", (Serializable) poll.getOptions());
i.putExtra("participants", (Serializable) poll.getParticipants());
LocalBroadcastManager.getInstance(context).sendBroadcast(i);
} else if (AbstractAction.this instanceof VotingRoundAction) {
round = Round.voting;
} else if (AbstractAction.this instanceof RecoveryRoundAction) {
round = Round.recovery;
}
Log.d(TAG, "Sending to processing service");
Intent intent2 = new Intent(context, ProcessingService.class);
intent2.putExtra("round", (Serializable) round);
intent2.putExtra("message", (Serializable) message);
intent2.putExtra("sender", sender);
context.startService(intent2);
}