/**
* Copyright 2013 Twitter, Inc.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
**/
package com.twitter.hbc.twitter4j.parser;
import com.google.common.primitives.Longs;
import com.twitter.hbc.twitter4j.message.DisconnectMessage;
import twitter4j.StatusDeletionNotice;
import twitter4j.JSONArray;
import twitter4j.JSONException;
import twitter4j.JSONObject;
import twitter4j.JSONObjectType;
public class JSONObjectParser {
public static StatusDeletionNotice parseStatusDelete(JSONObject json) throws JSONException {
JSONObject statusDelete = json.getJSONObject("delete").getJSONObject("status");
final long statusId = statusDelete.getLong("id");
final long userId = statusDelete.getLong("user_id");
return new StatusDeletionNotice() {
@Override
public long getStatusId() {
return statusId;
}
@Override
public long getUserId() {
return userId;
}
@Override
public int compareTo(StatusDeletionNotice o) {
return Longs.compare(getStatusId(), o.getStatusId());
}
};
}
public static int parseTrackLimit(JSONObject json) throws JSONException {
return json.getJSONObject("limit").getInt("track");
}
public static JSONObject parseEventSource(JSONObject json) throws JSONException {
return json.getJSONObject("source");
}
public static JSONObject parseEventTarget(JSONObject json) throws JSONException {
return json.getJSONObject("target");
}
public static JSONObject parseEventTargetObject(JSONObject json) throws JSONException {
return json.getJSONObject("target_object");
}
public static long[] parseFriendList(JSONObject json) throws JSONException {
JSONArray friends = json.getJSONArray("friends");
long[] friendIds = new long[friends.length()];
for (int i = 0; i < friendIds.length; ++i) {
friendIds[i] = friends.getLong(i);
}
return friendIds;
}
public static boolean hasSitestreamUser(JSONObject envelope) {
return envelope.has("for_user");
}
public static long getSitestreamUser(JSONObject envelope) throws JSONException {
return envelope.getLong("for_user");
}
public static boolean hasSitestreamMessage(JSONObject envelope) {
return envelope.has("message");
}
public static JSONObject getSitestreamMessage(JSONObject envelope) throws JSONException {
return envelope.getJSONObject("message");
}
public static boolean isControlStreamMessage(JSONObject message) throws JSONException {
return message.has("control");
}
public static String getStreamId(JSONObject message) throws JSONException {
String uri = message.getJSONObject("control").getString("control_uri");
String[] split = uri.split("/");
// do some basic validation to make sure the url is valid
// url should look like this: /1.1/site/c/1_1_54e345d655ee3e8df359ac033648530bfbe26c5f
if (split.length != 5) {
throw new IllegalStateException("Unknown url format: " + uri);
}
return split[split.length - 1];
}
@Deprecated
public static boolean isDisconnectMessage(JSONObject message) {
return JSONObjectType.determine(message) == JSONObjectType.Type.DISCONNECTION;
}
public static boolean isRetweetMessage(JSONObject message) throws JSONException {
Object event = message.opt("event");
if (!(event instanceof String))
return false;
return "retweet".equals(event);
}
public static DisconnectMessage parseDisconnectMessage(JSONObject message) throws JSONException {
JSONObject json = message.getJSONObject("disconnect");
int code = json.getInt("code");
String streamName = json.getString("stream_name");
String reason = json.getString("reason");
return new DisconnectMessage(code, streamName, reason);
}
}