public boolean sendMessage(MessageData... messages) {
boolean msgSent;
try {
for (MessageData message : messages) {
String content = message.createMessageString();
logger.info("Sending: " + content);
HttpURLConnection connection = (HttpURLConnection) MSG_SERVICE_URL.openConnection();
connection.setDoOutput(true);
connection.setUseCaches(false);
connection.setRequestMethod("POST");
connection.setRequestProperty(
"Content-Type", "application/x-www-form-urlencoded;charset=UTF-8");
connection.setRequestProperty("Content-Length", Integer.toString(content.length()));
connection.setRequestProperty("Authorization", "GoogleLogin auth=" + getToken());
OutputStream out = connection.getOutputStream();
out.write(content.getBytes("UTF-8"));
out.close();
logger.info("Response: " + connection.getResponseCode());
handleUpdatedTokenResponse(connection.getHeaderField(HEADER_FIELD_UPDATED_TOKEN));
}
msgSent = true;
} catch (IOException e) {
e.printStackTrace();
msgSent = false;
}
return msgSent;
}
/**
* This accepts a message and persists it in the AppEngine datastore, it will also broadcast the
* message to upto 10 registered android devices via Google Cloud Messaging
*
* @param message the entity to be inserted.
* @return
* @throws IOException
*/
@ApiMethod(name = "sendMessage")
public void sendMessage(@Named("message") String message) throws IOException {
Sender sender = new Sender(API_KEY);
// create a MessageData entity with a timestamp of when it was
// received, and persist it
MessageData messageObj = new MessageData();
messageObj.setMessage(message);
messageObj.setTimestamp(System.currentTimeMillis());
EntityManager mgr = getEntityManager();
try {
mgr.persist(messageObj);
} finally {
mgr.close();
}
// ping a max of 10 registered devices
CollectionResponse<DeviceInfo> response = endpoint.listDeviceInfo(null, 10);
for (DeviceInfo deviceInfo : response.getItems()) {
doSendViaGcm(message, sender, deviceInfo);
}
}
/**
* Respond to various requests. The first step is to create a response message by switching the
* from and to fields of the incoming message. Then we get the action specified in the request and
* handle the action accordingly.
*
* @param request
*/
public MessageData respond(String request) {
MessageData req = new MessageData(request);
MessageData jd = new MessageData();
String action = Session.responseMessage;
jd.setValue("action", action);
String from = getOwner().getSid();
String to = "undetermined";
if (!req.isValid()) {
action = Session.invalidMessage;
}
to = req.getValue("from");
action = req.getValue("action");
jd.setValue("to", to);
jd.setValue("from", from);
// String actreq = req.getValue ("message");
if (action.equals(terminateRequest)) {
jd.setValue("action", Session.terminateMessage);
} else if (action.equals(uwhoRequest)) {
jd.setValue("action", Session.responseMessage);
String s = "i am " + getOwner().getId();
jd.setValue("message", s);
} else if (action.equals(Session.responseMessage)) {
jd.setValue("action", Session.finishedMessage);
} else {
jd.setValue("action", Session.invalidMessage);
}
return jd;
}
