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/**
*
* Copyright 2003-2007 Jive Software.
*
* 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 org.jivesoftware.smackx.bookmarks;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.WeakHashMap;
import org.jivesoftware.smack.SmackException.NoResponseException;
import org.jivesoftware.smack.SmackException.NotConnectedException;
import org.jivesoftware.smack.XMPPConnection;
import org.jivesoftware.smack.XMPPException.XMPPErrorException;
import org.jivesoftware.smackx.iqprivate.PrivateDataManager;
import org.jxmpp.jid.EntityBareJid;
import org.jxmpp.jid.parts.Resourcepart;
/**
* Provides methods to manage bookmarks in accordance with XEP-0048. Methods for managing URLs and
* Conferences are provided.
*
* It should be noted that some extensions have been made to the XEP. There is an attribute on URLs
* that marks a url as a news feed and also a sub-element can be added to either a URL or conference
* indicated that it is shared amongst all users on a server.
*
* @author Alexander Wenckus
*/
public final class BookmarkManager {
private static final Map bookmarkManagerMap = new WeakHashMap<>();
static {
PrivateDataManager.addPrivateDataProvider("storage", "storage:bookmarks",
new Bookmarks.Provider());
}
/**
* Returns the BookmarkManager for a connection, if it doesn't exist it is created.
*
* @param connection the connection for which the manager is desired.
* @return Returns the BookmarkManager for a connection, if it doesn't
* exist it is created.
* @throws IllegalArgumentException when the connection is null.
*/
public static synchronized BookmarkManager getBookmarkManager(XMPPConnection connection) {
BookmarkManager manager = bookmarkManagerMap.get(connection);
if (manager == null) {
manager = new BookmarkManager(connection);
bookmarkManagerMap.put(connection, manager);
}
return manager;
}
private final PrivateDataManager privateDataManager;
private Bookmarks bookmarks;
private final Object bookmarkLock = new Object();
/**
* Default constructor. Registers the data provider with the private data manager in the
* storage:bookmarks namespace.
*
* @param connection the connection for persisting and retrieving bookmarks.
*/
private BookmarkManager(XMPPConnection connection) {
privateDataManager = PrivateDataManager.getInstanceFor(connection);
}
/**
* Returns all currently bookmarked conferences.
*
* @return returns all currently bookmarked conferences
* @throws XMPPErrorException if there was an XMPP error returned.
* @throws NoResponseException if there was no response from the remote entity.
* @throws NotConnectedException if the XMPP connection is not connected.
* @throws InterruptedException if the calling thread was interrupted.
* @see BookmarkedConference
*/
public List getBookmarkedConferences() throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException {
retrieveBookmarks();
return Collections.unmodifiableList(bookmarks.getBookmarkedConferences());
}
/**
* Adds or updates a conference in the bookmarks.
*
* @param name the name of the conference
* @param jid the jid of the conference
* @param isAutoJoin whether to join this conference automatically on login
* @param nickname the nickname to use for the user when joining the conference
* @param password the password to use for the user when joining the conference
* @throws XMPPErrorException thrown when there is an issue retrieving the current bookmarks from
* the server.
* @throws NoResponseException if there was no response from the server.
* @throws NotConnectedException if the XMPP connection is not connected.
* @throws InterruptedException if the calling thread was interrupted.
*/
public void addBookmarkedConference(String name, EntityBareJid jid, boolean isAutoJoin,
Resourcepart nickname, String password) throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException {
retrieveBookmarks();
BookmarkedConference bookmark
= new BookmarkedConference(name, jid, isAutoJoin, nickname, password);
List conferences = bookmarks.getBookmarkedConferences();
if (conferences.contains(bookmark)) {
BookmarkedConference oldConference = conferences.get(conferences.indexOf(bookmark));
if (oldConference.isShared()) {
throw new IllegalArgumentException("Cannot modify shared bookmark");
}
oldConference.setAutoJoin(isAutoJoin);
oldConference.setName(name);
oldConference.setNickname(nickname);
oldConference.setPassword(password);
}
else {
bookmarks.addBookmarkedConference(bookmark);
}
privateDataManager.setPrivateData(bookmarks);
}
/**
* Removes a conference from the bookmarks.
*
* @param jid the jid of the conference to be removed.
* @throws XMPPErrorException thrown when there is a problem with the connection attempting to
* retrieve the bookmarks or persist the bookmarks.
* @throws NoResponseException if there was no response from the server.
* @throws NotConnectedException if the XMPP connection is not connected.
* @throws InterruptedException if the calling thread was interrupted.
* @throws IllegalArgumentException thrown when the conference being removed is a shared
* conference
*/
public void removeBookmarkedConference(EntityBareJid jid) throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException {
retrieveBookmarks();
Iterator it = bookmarks.getBookmarkedConferences().iterator();
while (it.hasNext()) {
BookmarkedConference conference = it.next();
if (conference.getJid().equals(jid)) {
if (conference.isShared()) {
throw new IllegalArgumentException("Conference is shared and can't be removed");
}
it.remove();
privateDataManager.setPrivateData(bookmarks);
return;
}
}
}
/**
* Returns an unmodifiable collection of all bookmarked urls.
*
* @return returns an unmodifiable collection of all bookmarked urls.
* @throws XMPPErrorException thrown when there is a problem retrieving bookmarks from the server.
* @throws NoResponseException if there was no response from the server.
* @throws NotConnectedException if the XMPP connection is not connected.
* @throws InterruptedException if the calling thread was interrupted.
*/
public List getBookmarkedURLs() throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException {
retrieveBookmarks();
return Collections.unmodifiableList(bookmarks.getBookmarkedURLS());
}
/**
* Adds a new url or updates an already existing url in the bookmarks.
*
* @param URL the url of the bookmark
* @param name the name of the bookmark
* @param isRSS whether the url is an RSS feed
* @throws XMPPErrorException thrown when there is an error retrieving or saving bookmarks from or to
* the server
* @throws NoResponseException if there was no response from the server.
* @throws NotConnectedException if the XMPP connection is not connected.
* @throws InterruptedException if the calling thread was interrupted.
*/
public void addBookmarkedURL(String URL, String name, boolean isRSS) throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException {
retrieveBookmarks();
BookmarkedURL bookmark = new BookmarkedURL(URL, name, isRSS);
List urls = bookmarks.getBookmarkedURLS();
if (urls.contains(bookmark)) {
BookmarkedURL oldURL = urls.get(urls.indexOf(bookmark));
if (oldURL.isShared()) {
throw new IllegalArgumentException("Cannot modify shared bookmarks");
}
oldURL.setName(name);
oldURL.setRss(isRSS);
}
else {
bookmarks.addBookmarkedURL(bookmark);
}
privateDataManager.setPrivateData(bookmarks);
}
/**
* Removes a url from the bookmarks.
*
* @param bookmarkURL the url of the bookmark to remove
* @throws XMPPErrorException thrown if there is an error retrieving or saving bookmarks from or to
* the server.
* @throws NoResponseException if there was no response from the server.
* @throws NotConnectedException if the XMPP connection is not connected.
* @throws InterruptedException if the calling thread was interrupted.
*/
public void removeBookmarkedURL(String bookmarkURL) throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException {
retrieveBookmarks();
Iterator it = bookmarks.getBookmarkedURLS().iterator();
while (it.hasNext()) {
BookmarkedURL bookmark = it.next();
if (bookmark.getURL().equalsIgnoreCase(bookmarkURL)) {
if (bookmark.isShared()) {
throw new IllegalArgumentException("Cannot delete a shared bookmark.");
}
it.remove();
privateDataManager.setPrivateData(bookmarks);
return;
}
}
}
/**
* Check if the service supports bookmarks using private data.
*
* @return true if the service supports private data, false otherwise.
* @throws NoResponseException if there was no response from the remote entity.
* @throws NotConnectedException if the XMPP connection is not connected.
* @throws InterruptedException if the calling thread was interrupted.
* @throws XMPPErrorException if there was an XMPP error returned.
* @see PrivateDataManager#isSupported()
* @since 4.2
*/
public boolean isSupported() throws NoResponseException, NotConnectedException,
XMPPErrorException, InterruptedException {
return privateDataManager.isSupported();
}
private Bookmarks retrieveBookmarks() throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException {
synchronized (bookmarkLock) {
if (bookmarks == null) {
bookmarks = (Bookmarks) privateDataManager.getPrivateData("storage",
"storage:bookmarks");
}
return bookmarks;
}
}
}
