/**
* Calculates the connectionState resulting from the message in the current connection state.
* Checks if the specified message is allowed in the connection's state and throws an exception if
* not.
*
* @param con
* @param msg
* @return
* @throws won.protocol.exception.IllegalMessageForConnectionStateException if the message is not
* allowed in the connection's current state
*/
private ConnectionState performStateTransit(Connection con, ConnectionEventType msg)
throws IllegalMessageForConnectionStateException {
if (!msg.isMessageAllowed(con.getState())) {
throw new IllegalMessageForConnectionStateException(
con.getConnectionURI(), msg.name(), con.getState());
}
return con.getState().transit(msg);
}
private void handleKeepAlive() {
Connection c = null;
try {
netCode = ois.readInt();
c = checkConnectionNetCode();
if (c != null && c.getState() == Connection.STATE_CONNECTED) {
oos.writeInt(ACK_KEEP_ALIVE);
oos.flush();
System.out.println("->ACK_KEEP_ALIVE"); // $NON-NLS-1$
} else {
System.out.println("->NOT_CONNECTED"); // $NON-NLS-1$
oos.writeInt(NOT_CONNECTED);
oos.flush();
}
} catch (IOException e) {
System.out.println("handleKeepAlive: " + e.getMessage()); // $NON-NLS-1$
if (c != null) {
c.setState(Connection.STATE_DISCONNECTED);
System.out.println(
"Connection closed with "
+ c.getRemoteAddress()
+ //$NON-NLS-1$
":"
+ c.getRemotePort()); // $NON-NLS-1$
}
}
}
/**
* Adds a connection created by the {@link ConnectionService} and informs telecom of the new
* connection.
*
* @param phoneAccountHandle The phone account handle for the connection.
* @param connection The connection to add.
*/
public final void addExistingConnection(
PhoneAccountHandle phoneAccountHandle, Connection connection) {
String id = addExistingConnectionInternal(connection);
if (id != null) {
List<String> emptyList = new ArrayList<>(0);
ParcelableConnection parcelableConnection =
new ParcelableConnection(
phoneAccountHandle,
connection.getState(),
connection.getConnectionCapabilities(),
connection.getAddress(),
connection.getAddressPresentation(),
connection.getCallerDisplayName(),
connection.getCallerDisplayNamePresentation(),
connection.getVideoProvider() == null
? null
: connection.getVideoProvider().getInterface(),
connection.getVideoState(),
connection.isRingbackRequested(),
connection.getAudioModeIsVoip(),
connection.getStatusHints(),
connection.getDisconnectCause(),
emptyList);
mAdapter.addExistingConnection(id, parcelableConnection);
}
}
public boolean doesUserExist(String newUser) {
boolean result = false;
for (Connection clientThread : list) {
if (clientThread.getState() == Connection.STATE_REGISTERED) {
result = clientThread.getUserName().compareTo(newUser) == 0;
}
}
return result;
}
public ArrayList<String> getUserList() {
ArrayList<String> userList = new ArrayList<String>();
for (Connection clientThread : list) {
if (clientThread.getState() == Connection.STATE_REGISTERED) {
userList.add(clientThread.getUserName());
}
}
return userList;
}
public boolean sendPrivateMessage(String message, String user) {
for (Connection clientThread : list) {
if (clientThread.getState() == Connection.STATE_REGISTERED) {
if (clientThread.getUserName().compareTo(user) == 0) {
clientThread.messageForConnection(message + System.lineSeparator());
return true;
}
}
}
return false;
}
public Connection getConnection(
List<Connection> connections, URI facetURI, ConnectionEventType eventType)
throws ConnectionAlreadyExistsException {
Connection con = null;
for (Connection c : connections) {
// TODO: check remote need type as well or create GroupMemberFacet
if (facetURI.equals(c.getTypeURI())) con = c;
}
/**
* check if there already exists a connection between those two we have multiple options: a) no
* connection exists -> create new b) a connection exists in state CONNECTED -> error message c)
* a connection exists in state REQUEST_SENT. The call must be a duplicate (or re-sent after the
* remote end hasn't replied for some time) -> error message d) a connection exists in state
* REQUEST_RECEIVED. The remote end tried to connect before we did. -> error message e) a
* connection exists in state CLOSED -> create new
*/
// TODO: impose unique constraint on connections
if (con != null) {
if (con.getState() == ConnectionState.CONNECTED
|| con.getState() == ConnectionState.REQUEST_SENT)
throw new ConnectionAlreadyExistsException(
con.getConnectionURI(), con.getNeedURI(), con.getRemoteNeedURI());
/*if(!eventType.isMessageAllowed(con.getState())){
throw new ConnectionAlreadyExistsException(con.getConnectionURI(), con.getNeedURI(), con.getRemoteNeedURI());
}*/ else {
// TODO: Move this to the transition() - Method in ConnectionState
con.setState(con.getState().transit(eventType));
con = connectionRepository.saveAndFlush(con);
}
}
return con;
}
private void handleSendCode() {
Connection c = null;
GeneticCode code;
try {
netCode = ois.readInt();
c = checkConnectionNetCode();
if (c != null && c.getState() == Connection.STATE_CONNECTED) {
oos.writeInt(WAITING_CODE);
oos.flush();
System.out.println("->WAITING_CODE"); // $NON-NLS-1$
code = (GeneticCode) ois.readObject();
System.out.println("Genetic code"); // $NON-NLS-1$
oos.writeInt(CODE_RECEIVED);
oos.flush();
System.out.println("->CODE_RECEIVED"); // $NON-NLS-1$
c.getInCorridor().receiveOrganism(code);
} else {
System.out.println("->NOT_CONNECTED"); // $NON-NLS-1$
oos.writeInt(NOT_CONNECTED);
oos.flush();
}
} catch (IOException e) {
System.out.println("handleSendCode: " + e.getMessage()); // $NON-NLS-1$
if (c != null) {
c.setState(Connection.STATE_DISCONNECTED);
System.out.println(
"Connection closed with "
+ c.getRemoteAddress()
+ //$NON-NLS-1$
":"
+ c.getRemotePort()); // $NON-NLS-1$
}
} catch (ClassNotFoundException e) {
System.out.println("handleSendCode: " + e.getMessage()); // $NON-NLS-1$
if (c != null) {
c.setState(Connection.STATE_DISCONNECTED);
System.out.println(
"Connection closed with "
+ c.getRemoteAddress()
+ //$NON-NLS-1$
":"
+ c.getRemotePort()); // $NON-NLS-1$
}
}
}
@Override
public void update(Connection c) {
int state = c.getState();
World w = currentWorld.getWorld();
if (state == Connection.STATE_DISCONNECTED) {
notifyStatusListeners(
Messages.getInstance()
.getString("T_CONNECTION_LOST", c.getRemoteAddress().toString())); // $NON-NLS-1$
w.removeAgent(c.getInCorridor());
w.removeAgent(c.getOutCorridor());
removeConnection(c);
} else if (state == Connection.STATE_CONNECTED) {
w.addAgent(c.getInCorridor(), null);
w.addAgent(c.getOutCorridor(), null);
notifyStatusListeners(
Messages.getInstance()
.getString(
"T_CONNECTION_STABLISHED", c.getRemoteAddress().toString())); // $NON-NLS-1$
}
}
/**
* This can be used by telecom to either create a new outgoing call or attach to an existing
* incoming call. In either case, telecom will cycle through a set of services and call
* createConnection util a connection service cancels the process or completes it successfully.
*/
private void createConnection(
final PhoneAccountHandle callManagerAccount,
final String callId,
final ConnectionRequest request,
boolean isIncoming,
boolean isUnknown) {
Log.d(
this,
"createConnection, callManagerAccount: %s, callId: %s, request: %s, "
+ "isIncoming: %b, isUnknown: %b",
callManagerAccount,
callId,
request,
isIncoming,
isUnknown);
Connection connection =
isUnknown
? onCreateUnknownConnection(callManagerAccount, request)
: isIncoming
? onCreateIncomingConnection(callManagerAccount, request)
: onCreateOutgoingConnection(callManagerAccount, request);
Log.d(this, "createConnection, connection: %s", connection);
if (connection == null) {
connection = Connection.createFailedConnection(new DisconnectCause(DisconnectCause.ERROR));
}
if (connection.getState() != Connection.STATE_DISCONNECTED) {
addConnection(callId, connection);
}
Uri address = connection.getAddress();
String number = address == null ? "null" : address.getSchemeSpecificPart();
Log.v(
this,
"createConnection, number: %s, state: %s, capabilities: %s",
Connection.toLogSafePhoneNumber(number),
Connection.stateToString(connection.getState()),
Connection.capabilitiesToString(connection.getConnectionCapabilities()));
Log.d(this, "createConnection, calling handleCreateConnectionSuccessful %s", callId);
mAdapter.handleCreateConnectionComplete(
callId,
request,
new ParcelableConnection(
request.getAccountHandle(),
connection.getState(),
connection.getConnectionCapabilities(),
connection.getAddress(),
connection.getAddressPresentation(),
connection.getCallerDisplayName(),
connection.getCallerDisplayNamePresentation(),
connection.getVideoProvider() == null
? null
: connection.getVideoProvider().getInterface(),
connection.getVideoState(),
connection.isRingbackRequested(),
connection.getAudioModeIsVoip(),
connection.getStatusHints(),
connection.getDisconnectCause(),
createIdList(connection.getConferenceables())));
}