Package rocks.xmpp.extensions.bookmarks

Source Code of rocks.xmpp.extensions.bookmarks.BookmarkManager

/*
* The MIT License (MIT)
*
* Copyright (c) 2014 Christian Schudt
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/

package rocks.xmpp.extensions.bookmarks;

import rocks.xmpp.core.Jid;
import rocks.xmpp.core.XmppException;
import rocks.xmpp.core.session.ExtensionManager;
import rocks.xmpp.core.session.XmppSession;
import rocks.xmpp.extensions.bookmarks.model.Bookmark;
import rocks.xmpp.extensions.bookmarks.model.BookmarkStorage;
import rocks.xmpp.extensions.bookmarks.model.ChatRoomBookmark;
import rocks.xmpp.extensions.bookmarks.model.WebPageBookmark;
import rocks.xmpp.extensions.privatedata.PrivateDataManager;

import java.net.URL;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;

/**
* This manager facilitates the access to the private storage by providing convenient method for adding, retrieving or removing bookmarks.
*
* @author Christian Schudt
*/
public final class BookmarkManager extends ExtensionManager {

    private final PrivateDataManager privateDataManager;

    private BookmarkManager(XmppSession xmppSession) {
        super(xmppSession);
        privateDataManager = xmppSession.getExtensionManager(PrivateDataManager.class);
    }

    /**
     * Gets a sorted collection of chat room bookmarks.
     *
     * @return The chat room bookmarks.
     * @throws rocks.xmpp.core.stanza.model.StanzaException If the entity returned a stanza error.
     * @throws rocks.xmpp.core.session.NoResponseException  If the entity did not respond.
     */
    public Collection<ChatRoomBookmark> getChatRoomBookmarks() throws XmppException {
        return getBookmarks(ChatRoomBookmark.class);
    }

    /**
     * Gets a sorted collection of web page bookmarks.
     *
     * @return The web page bookmarks.
     * @throws rocks.xmpp.core.stanza.model.StanzaException If the entity returned a stanza error.
     * @throws rocks.xmpp.core.session.NoResponseException  If the entity did not respond.
     */
    public Collection<WebPageBookmark> getWebPageBookmarks() throws XmppException {
        return getBookmarks(WebPageBookmark.class);
    }

    /**
     * Adds a bookmark.
     *
     * @param bookmark The bookmark.
     * @throws rocks.xmpp.core.stanza.model.StanzaException If the entity returned a stanza error.
     * @throws rocks.xmpp.core.session.NoResponseException  If the entity did not respond.
     */
    public void addBookmark(Bookmark bookmark) throws XmppException {
        BookmarkStorage bookmarkStorage = privateDataManager.getData(BookmarkStorage.class);
        List<Bookmark> bookmarks = new ArrayList<>(bookmarkStorage.getBookmarks());
        bookmarks.remove(bookmark);
        bookmarks.add(bookmark);
        privateDataManager.storeData(new BookmarkStorage(bookmarks));
    }

    /**
     * Removes a chat room bookmark.
     *
     * @param chatRoom The chat room.
     * @throws rocks.xmpp.core.stanza.model.StanzaException If the entity returned a stanza error.
     * @throws rocks.xmpp.core.session.NoResponseException  If the entity did not respond.
     */
    public void removeChatRoomBookmark(Jid chatRoom) throws XmppException {
        BookmarkStorage bookmarkStorage = privateDataManager.getData(BookmarkStorage.class);
        List<Bookmark> bookmarks = new ArrayList<>(bookmarkStorage.getBookmarks());
        bookmarks.remove(new ChatRoomBookmark("", chatRoom));
        privateDataManager.storeData(new BookmarkStorage(bookmarks));
    }

    /**
     * Removes a web page bookmark.
     *
     * @param webPage The web page.
     * @throws rocks.xmpp.core.stanza.model.StanzaException If the entity returned a stanza error.
     * @throws rocks.xmpp.core.session.NoResponseException  If the entity did not respond.
     */
    public void removeWebPageBookmark(URL webPage) throws XmppException {
        BookmarkStorage bookmarkStorage = privateDataManager.getData(BookmarkStorage.class);
        List<Bookmark> bookmarks = new ArrayList<>(bookmarkStorage.getBookmarks());
        bookmarks.remove(new WebPageBookmark("", webPage));
        privateDataManager.storeData(new BookmarkStorage(bookmarks));
    }

    @SuppressWarnings("unchecked")
    private <T extends Bookmark> Collection<T> getBookmarks(Class<T> clazz) throws XmppException {
        List<T> bookmarks = new ArrayList<>();
        BookmarkStorage bookmarkStorage = privateDataManager.getData(BookmarkStorage.class);

        for (Bookmark bookmark : bookmarkStorage.getBookmarks()) {
            if (bookmark.getClass() == clazz) {
                bookmarks.add((T) bookmark);
            }
        }
        Collections.sort(bookmarks);
        return bookmarks;
    }
}
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