package org.bigbluebutton.common.messages;
import java.util.HashMap;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
public class SharePresentationMessage implements IBigBlueButtonMessage {
public static final String SHARE_PRESENTATION = "share_presentation";
public static final String VERSION = "0.0.1";
public final String meetingId;
public final String presentationId;
public final boolean share;
public SharePresentationMessage(String meetingId, String presentationId,
boolean share){
this.meetingId = meetingId;
this.presentationId = presentationId;
this.share = share;
}
public String toJson() {
HashMap<String, Object> payload = new HashMap<String, Object>();
payload.put(Constants.MEETING_ID, meetingId);
payload.put(Constants.PRESENTATION_ID, presentationId);
payload.put(Constants.SHARE, share);
java.util.HashMap<String, Object> header = MessageBuilder.buildHeader(SHARE_PRESENTATION, VERSION, null);
return MessageBuilder.buildJson(header, payload);
}
public static SharePresentationMessage fromJson(String message) {
JsonParser parser = new JsonParser();
JsonObject obj = (JsonObject) parser.parse(message);
if (obj.has("header") && obj.has("payload")) {
JsonObject header = (JsonObject) obj.get("header");
JsonObject payload = (JsonObject) obj.get("payload");
if (header.has("name")) {
String messageName = header.get("name").getAsString();
if (SHARE_PRESENTATION.equals(messageName)) {
if (payload.has(Constants.MEETING_ID)
&& payload.has(Constants.PRESENTATION_ID)
&& payload.has(Constants.SHARE)) {
String meetingId = payload.get(Constants.MEETING_ID).getAsString();
String presentationId = payload.get(Constants.PRESENTATION_ID).getAsString();
boolean share = payload.get(Constants.SHARE).getAsBoolean();
return new SharePresentationMessage(meetingId, presentationId, share);
}
}
}
}
return null;
}
}