/**
* Setting an ID lets the browser keep track of the last event fired so that if, the connection to
* the server is dropped, a special HTTP header (Last-Event-ID) is set with the new request. This
* lets the browser determine which event is appropriate to fire.
*
* @param eventId Unique event id.
* @param data data associated with event
*/
public void sendDataById(String eventId, String data) {
out.write(
"id: "
+ eventId
+ "\r\n"
+ "data: "
+ StringEscapeUtils.escapeEcmaScript(data)
+ "\r\n\r\n");
}
/**
* A single event source can generate different types events by including an event name. On the
* client, an event listener can be setup to listen to that particular event.
*
* @param eventName Unique name of the event.
* @param data data associated with event
* @deprecated Replaced by send
*/
public void sendDataByName(String eventName, String data) {
out.write(
"event: "
+ eventName
+ "\r\n"
+ "data: "
+ StringEscapeUtils.escapeEcmaScript(data)
+ "\r\n\r\n");
}
/**
* Sending a generic event. On the client, 'message' event listener can be setup to listen to this
* event.
*
* @param data data associated with event
*/
public void sendData(String data) {
out.write("data: " + data + "\r\n\r\n");
}