/**
* Returns a (singleton) instance of this class. Clients should call this method in order to get a
* hold of this singleton instance. If it is not initialized yet, a {@link CastException} will be
* thrown.
*/
public static DataCastManager getInstance() {
if (sInstance == null) {
String msg = "No DataCastManager instance was found, did you forget to initialize it?";
LOGE(TAG, msg);
throw new IllegalStateException(msg);
}
return sInstance;
}
@Override
public void onConnectivityRecovered() {
try {
attachDataChannels();
} catch (IOException | IllegalStateException e) {
LOGE(TAG, "onConnectivityRecovered(): Failed to reattach data channels", e);
}
super.onConnectivityRecovered();
}
/*
* Remove namespaces
*
* @throws NoConnectionException If no connectivity to the device exists
* @throws TransientNetworkDisconnectionException If framework is still trying to recover from a
* possibly transient loss of network
*/
private void detachDataChannels() {
if (mApiClient == null) {
return;
}
for (String namespace : mNamespaceList) {
try {
Cast.CastApi.removeMessageReceivedCallbacks(mApiClient, namespace);
} catch (IOException | IllegalArgumentException e) {
LOGE(TAG, "detachDataChannels() Failed to remove namespace: " + namespace, e);
}
}
}
/**
* Initializes the DataCastManager for clients. Before clients can use DataCastManager, they need
* to initialize it by calling this static method. Then clients can obtain an instance of this
* singleton class by calling {@link DataCastManager#getInstance()}. Failing to initialize this
* class before requesting an instance will result in a {@link CastException} exception.
*
* @param context
* @param applicationId the application ID for your application
* @param namespaces Namespaces to be set up for this class.
*/
public static synchronized DataCastManager initialize(
Context context, String applicationId, String... namespaces) {
if (sInstance == null) {
LOGD(TAG, "New instance of DataCastManager is created");
if (ConnectionResult.SUCCESS
!= GooglePlayServicesUtil.isGooglePlayServicesAvailable(context)) {
String msg = "Couldn't find the appropriate version of Google Play Services";
LOGE(TAG, msg);
throw new RuntimeException(msg);
}
sInstance = new DataCastManager(context, applicationId, namespaces);
}
return sInstance;
}
public void onApplicationStatusChanged() {
String appStatus;
if (!isConnected()) {
return;
}
try {
appStatus = Cast.CastApi.getApplicationStatus(mApiClient);
LOGD(TAG, "onApplicationStatusChanged() reached: " + appStatus);
for (DataCastConsumer consumer : mDataConsumers) {
consumer.onApplicationStatusChanged(appStatus);
}
} catch (IllegalStateException e) {
LOGE(TAG, "onApplicationStatusChanged(): Failed", e);
}
}
@Override
public void onApplicationConnected(
WebAppSession webAppSession, WebAppSession.WebAppStatus status) {
LOGD(
TAG,
"onApplicationConnected() reached with sessionId: "
+ webAppSession.launchSession.getSessionId());
// saving session for future retrieval; we only save the last session info
mPreferenceAccessor.saveStringToPreference(
PREFS_KEY_SESSION_ID, webAppSession.launchSession.getSessionId());
if (mReconnectionStatus == RECONNECTION_STATUS_IN_PROGRESS) {
// we have tried to reconnect and successfully launched the app, so
// it is time to select the route and make the cast icon happy :-)
List<RouteInfo> routes = mMediaRouter.getRoutes();
if (routes != null) {
String routeId = mPreferenceAccessor.getStringFromPreference(PREFS_KEY_ROUTE_ID);
boolean found = false;
for (RouteInfo routeInfo : routes) {
if (routeId.equals(routeInfo.getId())) {
// found the right route
LOGD(TAG, "Found the correct route during reconnection attempt");
found = true;
mReconnectionStatus = RECONNECTION_STATUS_FINALIZED;
mMediaRouter.selectRoute(routeInfo);
break;
}
}
if (!found) {
// we were hoping to have the route that we wanted, but we
// didn't so we deselect the device
onDeviceSelected(null);
mReconnectionStatus = RECONNECTION_STATUS_INACTIVE;
return;
}
}
}
// registering namespaces, if any
try {
attachDataChannels();
mSessionId = webAppSession.launchSession.getSessionId();
for (DataCastConsumer consumer : mDataConsumers) {
consumer.onApplicationConnected(webAppSession, status);
}
} catch (IllegalStateException | IOException e) {
LOGE(TAG, "Failed to attach namespaces", e);
}
}
/**
* Unregisters a namespace. If namespace is not already registered, it returns <code>false</code>,
* otherwise a successful removal returns <code>true</code>.
*
* @throws NoConnectionException If no connectivity to the device exists
* @throws TransientNetworkDisconnectionException If framework is still trying to recover from a
* possibly transient loss of network
*/
public boolean removeNamespace(String namespace)
throws TransientNetworkDisconnectionException, NoConnectionException {
checkConnectivity();
if (TextUtils.isEmpty(namespace)) {
throw new IllegalArgumentException("namespace cannot be empty");
}
if (!mNamespaceList.contains(namespace)) {
LOGD(TAG, "Ignoring to remove a namespace that is not registered.");
return false;
}
try {
Cast.CastApi.removeMessageReceivedCallbacks(mApiClient, namespace);
mNamespaceList.remove(namespace);
return true;
} catch (IOException | IllegalStateException e) {
LOGE(TAG, String.format("removeNamespace(%s)", namespace), e);
}
return false;
}
/**
* Sends the <code>message</code> on the data channel for the <code>namespace</code>. If fails, it
* will call <code>onMessageSendFailed</code>
*
* @throws IllegalArgumentException If the the message is null, empty, or too long; or if the
* namespace is null or too long.
* @throws IllegalStateException If there is no active service connection.
* @throws IOException
*/
public void sendDataMessage(String message, String namespace)
throws IllegalArgumentException, IllegalStateException, IOException {
checkConnectivity();
if (TextUtils.isEmpty(namespace)) {
throw new IllegalArgumentException("namespace cannot be empty");
}
LOGE(TAG, "sendDataMessage not yet implemented");
// Cast.CastApi.sendMessage(mApiClient, namespace, message).
// setResultCallback(new ResultCallback<Status>() {
//
// @Override
// public void onResult(Status result) {
// if (!result.isSuccess()) {
// DataCastManager.this.onMessageSendFailed(result);
// }
// }
// });
}
