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A Java library for the Twitter API
/*
* Copyright 2007 Yusuke Yamamoto
* Copyright (C) 2012 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 twitter4j;
import twitter4j.auth.Authorization;
import twitter4j.auth.AuthorizationFactory;
import twitter4j.conf.Configuration;
import java.io.Serializable;
import java.util.Arrays;
import static twitter4j.ParseUtil.*;
/**
* @author Yusuke Yamamoto - yusuke at twitter.com
* @since Twitter4J 2.2.6
*/
public class StreamController {
private String controlURI = null;
private final HttpClient http;
private final Authorization AUTH;
private static final Logger logger = Logger.getLogger(StreamController.class);
/*package*/ StreamController(HttpClient http, Authorization auth) {
this.http = http;
AUTH = auth;
}
/*package*/ StreamController(Configuration conf) {
this.http = HttpClientFactory.getInstance(conf.getHttpClientConfiguration());
AUTH = AuthorizationFactory.getInstance(conf);
}
void setControlURI(String controlURI) {
this.controlURI = (controlURI!=null) ?controlURI.replace("/1.1//1.1/", "/1.1/") : null;
synchronized (lock) {
lock.notifyAll();
}
}
private final Object lock = new Object();
String getControlURI() {
return controlURI;
}
void ensureControlURISet() throws TwitterException {
synchronized (lock) {
try {
int waits = 0;
while (controlURI == null) {
lock.wait(1000);
waits++;
if (waits > 29) throw new TwitterException("timed out for control uri to be ready");
}
} catch (InterruptedException e) {
}
}
}
public ControlStreamInfo getInfo() throws TwitterException {
ensureControlURISet();
HttpResponse res = http.get(controlURI + "/info.json", null, AUTH, null);
return new ControlStreamInfo(this, res.asJSONObject());
}
public String addUsers(long... userIds) throws TwitterException {
ensureControlURISet();
HttpParameter param = new HttpParameter("user_id",
StringUtil.join(userIds));
HttpResponse res = http.post(controlURI + "/add_user.json",
new HttpParameter[]{param}, AUTH, null);
return res.asString();
}
public String removeUsers(long... userIds) throws TwitterException {
ensureControlURISet();
HttpParameter param = new HttpParameter("user_id",
StringUtil.join(userIds));
HttpResponse res = http.post(controlURI + "/remove_user.json",
new HttpParameter[]{param}, AUTH, null);
return res.asString();
}
public FriendsIDs getFriendsIDs(long userId, long cursor) throws TwitterException {
ensureControlURISet();
HttpResponse res = http.post(controlURI + "/friends/ids.json",
new HttpParameter[]{new HttpParameter("user_id", userId),
new HttpParameter("cursor", cursor)}, AUTH, null
);
return new FriendsIDs(res);
}
public final class FriendsIDs implements CursorSupport, Serializable {
private static final long serialVersionUID = -7393320878760329794L;
private long[] ids;
private long previousCursor = -1;
private long nextCursor = -1;
private User user;
/*package*/ FriendsIDs(HttpResponse res) throws TwitterException {
init(res.asJSONObject());
}
private void init(JSONObject json) throws TwitterException {
try {
JSONObject follow = json.getJSONObject("follow");
JSONArray idList = follow.getJSONArray("friends");
ids = new long[idList.length()];
for (int i = 0; i < idList.length(); i++) {
try {
ids[i] = Long.parseLong(idList.getString(i));
} catch (NumberFormatException nfe) {
throw new TwitterException("Twitter API returned malformed response: " + json, nfe);
}
}
user = new User(follow.getJSONObject("user"));
previousCursor = ParseUtil.getLong("previous_cursor", json);
nextCursor = ParseUtil.getLong("next_cursor", json);
} catch (JSONException jsone) {
throw new TwitterException(jsone);
}
}
@Override
public boolean hasPrevious() {
return 0 != previousCursor;
}
@Override
public long getPreviousCursor() {
return previousCursor;
}
@Override
public boolean hasNext() {
return 0 != nextCursor;
}
@Override
public long getNextCursor() {
return nextCursor;
}
public User getUser() {
return user;
}
public long[] getIds() {
return ids;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
FriendsIDs that = (FriendsIDs) o;
if (nextCursor != that.nextCursor) return false;
if (previousCursor != that.previousCursor) return false;
if (!Arrays.equals(ids, that.ids)) return false;
if (user != null ? !user.equals(that.user) : that.user != null) return false;
return true;
}
@Override
public int hashCode() {
int result = ids != null ? Arrays.hashCode(ids) : 0;
result = 31 * result + (int) (previousCursor ^ (previousCursor >>> 32));
result = 31 * result + (int) (nextCursor ^ (nextCursor >>> 32));
result = 31 * result + (user != null ? user.hashCode() : 0);
return result;
}
@Override
public String toString() {
return "FriendsIDs{" +
"ids=" + Arrays.toString(ids) +
", previousCursor=" + previousCursor +
", nextCursor=" + nextCursor +
", user=" + user +
'}';
}
}
/*package*/ User createUser(JSONObject json) {
return new User(json);
}
public final class User implements Serializable {
private static final long serialVersionUID = -8741743249755418730L;
private final long id;
private final String name;
private final boolean dm;
/*package*/ User(JSONObject json) {
id = getLong("id", json);
name = getRawString("name", json);
dm = getBoolean("dm", json);
}
public long getId() {
return id;
}
public String getName() {
return name;
}
public boolean isDMAccessible() {
return dm;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
User user = (User) o;
if (dm != user.dm) return false;
if (id != user.id) return false;
if (name != null ? !name.equals(user.name) : user.name != null) return false;
return true;
}
@Override
public int hashCode() {
int result = (int) (id ^ (id >>> 32));
result = 31 * result + (name != null ? name.hashCode() : 0);
result = 31 * result + (dm ? 1 : 0);
return result;
}
@Override
public String toString() {
return "User{" +
"id=" + id +
", name='" + name + '\'' +
", dm=" + dm +
'}';
}
}
}
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