in src/main/java/com/googlesource/gerrit/plugins/events/StreamEvents.java [234:245]
protected void flush(String uuid, long number, String json) {
if (json != null) {
JsonElement el = parser.parse(json);
if (perms.isVisibleTo(el, currentUser)) {
if (includeIds) {
el.getAsJsonObject().addProperty("id", uuid + ":" + number);
json = gson.toJson(el);
}
flush(json + "\n");
}
}
}