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665 lines
23 KiB
665 lines
23 KiB
//bookmarksDB.java
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//-------------------------------------
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//part of YACY
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//(C) by Michael Peter Christen; mc@anomic.de
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//first published on http://www.anomic.de
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//Frankfurt, Germany, 2004
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//
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//This file ist contributed by Alexander Schier
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//
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//This program is free software; you can redistribute it and/or modify
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//it under the terms of the GNU General Public License as published by
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//the Free Software Foundation; either version 2 of the License, or
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//(at your option) any later version.
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//
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//This program is distributed in the hope that it will be useful,
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//but WITHOUT ANY WARRANTY; without even the implied warranty of
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//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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//GNU General Public License for more details.
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//
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//You should have received a copy of the GNU General Public License
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//along with this program; if not, write to the Free Software
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//Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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//Using this software in any meaning (reading, learning, copying, compiling,
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//running) means that you agree that the Author(s) is (are) not responsible
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//for cost, loss of data or any harm that may be caused directly or indirectly
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//by usage of this softare or this documentation. The usage of this software
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//is on your own risk. The installation and usage (starting/running) of this
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//software may allow other people or application to access your computer and
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//any attached devices and is highly dependent on the configuration of the
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//software which must be done by the user of the software; the author(s) is
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//(are) also not responsible for proper configuration and usage of the
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//software, even if provoked by documentation provided together with
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//the software.
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//
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//Any changes to this file according to the GPL as documented in the file
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//gpl.txt aside this file in the shipment you received can be done to the
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//lines that follows this copyright notice here, but changes must not be
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//done inside the copyright notive above. A re-distribution must contain
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//the intact and unchanged copyright notice.
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//Contributions and changes to the program code must be marked as such.
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package de.anomic.data;
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import java.io.File;
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import java.io.IOException;
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import java.net.URL;
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import java.text.SimpleDateFormat;
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import java.util.Comparator;
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import java.util.Date;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.Map;
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import java.util.TreeSet;
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import java.util.Vector;
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import de.anomic.kelondro.kelondroDyn;
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import de.anomic.kelondro.kelondroException;
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import de.anomic.kelondro.kelondroMap;
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import de.anomic.plasma.plasmaURL;
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import de.anomic.server.logging.serverLog;
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public class bookmarksDB {
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kelondroMap tagsTable;
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kelondroMap bookmarksTable;
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kelondroMap datesTable;
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public bookmarksDB(File bookmarksFile, File tagsFile, File datesFile, int bufferkb){
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//bookmarks
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//check if database exists
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if(bookmarksFile.exists()){
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try {
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//open it
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this.bookmarksTable=new kelondroMap(new kelondroDyn(bookmarksFile, 1024*bufferkb));
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} catch (IOException e) {
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//database reset :-((
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bookmarksFile.delete();
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bookmarksFile.getParentFile().mkdirs();
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//urlHash is 12 bytes long
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this.bookmarksTable = new kelondroMap(new kelondroDyn(bookmarksFile, bufferkb * 1024, 12, 256, true));
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}
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}else{
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//new database
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bookmarksFile.getParentFile().mkdirs();
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this.bookmarksTable = new kelondroMap(new kelondroDyn(bookmarksFile, bufferkb * 1024, 12, 256, true));
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}
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//tags
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//check if database exists
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if(tagsFile.exists()){
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try {
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//open it
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this.tagsTable=new kelondroMap(new kelondroDyn(tagsFile, 1024*bufferkb));
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} catch (IOException e) {
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//reset database
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tagsFile.delete();
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tagsFile.getParentFile().mkdirs();
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// max. 128 byte long tags
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this.tagsTable = new kelondroMap(new kelondroDyn(tagsFile, bufferkb * 1024, 128, 256, true));
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rebuildTags();
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}
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}else{
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//new database
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tagsFile.getParentFile().mkdirs();
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this.tagsTable = new kelondroMap(new kelondroDyn(tagsFile, bufferkb * 1024, 128, 256, true));
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rebuildTags();
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}
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// dates
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//check if database exists
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if(datesFile.exists()){
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try {
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//open it
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this.datesTable=new kelondroMap(new kelondroDyn(datesFile, 1024*bufferkb));
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} catch (IOException e) {
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//reset database
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datesFile.delete();
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datesFile.getParentFile().mkdirs();
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//YYYY-MM-DDTHH:mm:ssZ = 20 byte. currently used: YYYY-MM-DD = 10 bytes
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this.datesTable = new kelondroMap(new kelondroDyn(datesFile, bufferkb * 1024, 20, 256, true));
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rebuildDates();
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}
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}else{
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//new database
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datesFile.getParentFile().mkdirs();
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this.datesTable = new kelondroMap(new kelondroDyn(datesFile, bufferkb * 1024, 20, 256, true));
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rebuildDates();
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}
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}
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public void close(){
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try {
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bookmarksTable.close();
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} catch (IOException e) {}
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try {
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tagsTable.close();
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} catch (IOException e) {}
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try {
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datesTable.close();
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} catch (IOException e) {}
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}
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public int bookmarksSize(){
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return bookmarksTable.size();
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}
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public int tagsSize(){
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return tagsTable.size();
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}
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public String addTag(Tag tag){
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try {
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tagsTable.set(tag.getTagName(), tag.mem);
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return tag.getTagName();
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} catch (IOException e) {
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return null;
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}
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}
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public void rebuildTags(){
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serverLog.logInfo("BOOKMARKS", "rebuilding tags.db from bookmarks.db...");
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Iterator it=bookmarkIterator(true);
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Bookmark bookmark;
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Tag tag;
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String[] tags;
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while(it.hasNext()){
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bookmark=(Bookmark) it.next();
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tags = bookmark.getTags().split(",");
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tag=null;
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for(int i=0;i<tags.length;i++){
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tag=getTag(tags[i]);
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if(tag==null){
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tag=new Tag(tags[i]);
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}
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tag.add(bookmark.getUrlHash());
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tag.setTagsTable();
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}
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}
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serverLog.logInfo("BOOKMARKS", "Rebuilt "+tagsTable.size()+" tags using your "+bookmarksTable.size()+" bookmarks.");
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}
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public void rebuildDates(){
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serverLog.logInfo("BOOKMARKS", "rebuilding dates.db from bookmarks.db...");
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Iterator it=bookmarkIterator(true);
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Bookmark bookmark;
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String date;
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bookmarksDate bmDate;
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while(it.hasNext()){
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bookmark=(Bookmark) it.next();
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date = (new SimpleDateFormat("yyyy-MM-dd")).format(new Date(bookmark.getTimeStamp()));
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bmDate=getDate(date);
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if(bmDate==null){
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bmDate=new bookmarksDate(date);
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}
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bmDate.add(bookmark.getUrlHash());
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bmDate.setDatesTable();
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}
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serverLog.logInfo("BOOKMARKS", "Rebuilt "+datesTable.size()+" dates using your "+bookmarksTable.size()+" bookmarks.");
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}
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public Tag getTag(String tagName){
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Map map;
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try {
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map = tagsTable.get(tagName.toLowerCase());
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if(map==null) return null;
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return new Tag(tagName, map);
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} catch (IOException e) {
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return null;
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}
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}
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public bookmarksDate getDate(String date){
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Map map;
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try {
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map=datesTable.get(date);
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if(map==null) return new bookmarksDate(date);
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return new bookmarksDate(date, map);
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} catch (IOException e) {
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return null;
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}
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}
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public boolean renameTag(String oldName, String newName){
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Tag tag=getTag(oldName);
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if (tag != null) {
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Vector urlHashes = tag.getUrlHashes();
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try {
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tagsTable.remove(oldName);
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} catch (IOException e) {
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}
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tag.tagName = newName;
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tag.setTagsTable();
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Iterator it = urlHashes.iterator();
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Bookmark bookmark;
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Vector tags;
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while (it.hasNext()) {
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bookmark = getBookmark((String) it.next());
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tags = listManager.string2vector(bookmark.getTags());
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tags.remove(oldName);
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tags.add(newName);
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bookmark.setTags(tags);
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bookmark.setBookmarksTable();
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}
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return true;
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}
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return false;
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}
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public void removeTag(String tagName){
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try {
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tagsTable.remove(tagName);
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} catch (IOException e) {}
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}
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public String addBookmark(Bookmark bookmark){
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try {
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bookmarksTable.set(bookmark.getUrlHash(), bookmark.mem);
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return bookmark.getUrlHash();
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} catch (IOException e) {
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return null;
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}
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}
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public Bookmark getBookmark(String urlHash){
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Map map;
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try {
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map = bookmarksTable.get(urlHash);
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if(map==null) return null;
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return new Bookmark(urlHash, map);
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} catch (IOException e) {
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return null;
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}
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}
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public Iterator getBookmarksIterator(){
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TreeSet set=new TreeSet(new bookmarkComparator());
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Iterator it=bookmarkIterator(true);
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Bookmark bm;
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while(it.hasNext()){
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bm=(Bookmark)it.next();
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set.add(bm.getUrlHash());
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}
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return set.iterator();
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}
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public Iterator getBookmarksIterator(String tagName){
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TreeSet set=new TreeSet(new bookmarkComparator());
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Tag tag=getTag(tagName);
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Vector hashes=new Vector();
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if(tag != null){
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hashes=getTag(tagName).getUrlHashes();
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}
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set.addAll(hashes);
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return set.iterator();
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}
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public void removeBookmark(String urlHash){
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Bookmark bookmark = getBookmark(urlHash);
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if(bookmark == null) return; //does not exist
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String[] tags = bookmark.getTags().split(",");
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bookmarksDB.Tag tag=null;
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for(int i=0;i<tags.length;i++){
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tag=getTag(tags[i]);
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if(tag !=null){
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tag.delete(urlHash);
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tag.setTagsTable();
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}
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}
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try {
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bookmarksTable.remove(urlHash);
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} catch (IOException e) {}
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}
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public Bookmark createBookmark(String url){
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return new Bookmark(url);
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}
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public Iterator tagIterator(boolean up){
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try {
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return new tagIterator(up);
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} catch (IOException e) {
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return new HashSet().iterator();
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}
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}
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public Iterator bookmarkIterator(boolean up){
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try {
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return new bookmarkIterator(up);
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} catch (IOException e) {
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return new HashSet().iterator();
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}
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}
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public void addBookmark(String url, String title, Vector tags){
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}
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/**
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* Subclass, which stores an Tag
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*
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*/
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public class Tag{
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public static final String URL_HASHES="urlHashes";
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public static final String TAG_FRIENDLY_NAME="friendlyName";
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private String tagName;
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private Map mem;
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public Tag(String name, Map map){
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tagName=name.toLowerCase();
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mem=map;
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if(!name.equals(tagName)){
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mem.put(TAG_FRIENDLY_NAME, name);
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}
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}
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public Tag(String name, Vector entries){
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tagName=name.toLowerCase();
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mem=new HashMap();
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mem.put(URL_HASHES, listManager.vector2string(entries));
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if(!name.equals(tagName)){
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mem.put(TAG_FRIENDLY_NAME, name);
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}
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}
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public Tag(String name){
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tagName=name.toLowerCase();
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mem=new HashMap();
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mem.put(URL_HASHES, "");
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if(!name.equals(tagName)){
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mem.put(TAG_FRIENDLY_NAME, name);
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}
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}
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public String getTagName(){
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return tagName;
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}
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public String getFriendlyName(){
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if(this.mem.containsKey(TAG_FRIENDLY_NAME)){
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return (String) this.mem.get(TAG_FRIENDLY_NAME);
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}
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return this.tagName;
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}
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public Vector getUrlHashes(){
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return listManager.string2vector((String)this.mem.get(URL_HASHES));
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}
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public void add(String urlHash){
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String urlHashes = (String)mem.get(URL_HASHES);
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Vector list;
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if(urlHashes != null && !urlHashes.equals("")){
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list=listManager.string2vector(urlHashes);
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}else{
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list=new Vector();
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}
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if(!list.contains(urlHash) && !urlHash.equals("")){
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list.add(urlHash);
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}
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this.mem.put(URL_HASHES, listManager.vector2string(list));
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/*if(urlHashes!=null && !urlHashes.equals("") ){
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if(urlHashes.indexOf(urlHash) <0){
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this.mem.put(URL_HASHES, urlHashes+","+urlHash);
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}
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}else{
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this.mem.put(URL_HASHES, urlHash);
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}*/
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}
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public void delete(String urlHash){
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Vector list=listManager.string2vector((String) this.mem.get(URL_HASHES));
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if(list.contains(urlHash)){
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list.remove(urlHash);
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}
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this.mem.put(URL_HASHES, listManager.vector2string(list));
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}
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public void setTagsTable(){
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try {
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if(this.size() >0){
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bookmarksDB.this.tagsTable.set(getTagName(), mem);
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}else{
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bookmarksDB.this.tagsTable.remove(getTagName());
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}
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} catch (IOException e) {}
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}
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public int size(){
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return listManager.string2vector(((String)this.mem.get(URL_HASHES))).size();
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}
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}
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public class bookmarksDate{
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public static final String URL_HASHES="urlHashes";
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private Map mem;
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String date;
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public bookmarksDate(String mydate){
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date=mydate;
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mem=new HashMap();
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mem.put(URL_HASHES, "");
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}
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public bookmarksDate(String mydate, Map map){
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date=mydate;
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mem=map;
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}
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public bookmarksDate(String mydate, Vector entries){
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date=mydate;
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mem=new HashMap();
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mem.put(URL_HASHES, listManager.vector2string(entries));
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}
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public void add(String urlHash){
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String urlHashes = (String)mem.get(URL_HASHES);
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Vector list;
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if(urlHashes != null && !urlHashes.equals("")){
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list=listManager.string2vector(urlHashes);
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}else{
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list=new Vector();
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}
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if(!list.contains(urlHash) && !urlHash.equals("")){
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list.add(urlHash);
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}
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this.mem.put(URL_HASHES, listManager.vector2string(list));
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/*if(urlHashes!=null && !urlHashes.equals("") ){
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if(urlHashes.indexOf(urlHash) <0){
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this.mem.put(URL_HASHES, urlHashes+","+urlHash);
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}
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}else{
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this.mem.put(URL_HASHES, urlHash);
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}*/
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}
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public void delete(String urlHash){
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Vector list=listManager.string2vector((String) this.mem.get(URL_HASHES));
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if(list.contains(urlHash)){
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list.remove(urlHash);
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}
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this.mem.put(URL_HASHES, listManager.vector2string(list));
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}
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public void setDatesTable(){
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try {
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if(this.size() >0){
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bookmarksDB.this.datesTable.set(getDateString(), mem);
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}else{
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bookmarksDB.this.datesTable.remove(getDateString());
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}
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} catch (IOException e) {}
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}
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public String getDateString(){
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return date;
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}
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public int size(){
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return listManager.string2vector(((String)this.mem.get(URL_HASHES))).size();
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}
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}
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/**
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* Subclass, which stores the bookmark
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*
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*/
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public class Bookmark{
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public static final String BOOKMARK_URL="bookmarkUrl";
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public static final String BOOKMARK_TITLE="bookmarkTitle";
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public static final String BOOKMARK_DESCRIPTION="bookmarkDesc";
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public static final String BOOKMARK_TAGS="bookmarkTags";
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public static final String BOOKMARK_PUBLIC="bookmarkPublic";
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public static final String BOOKMARK_TIMESTAMP="bookmarkTimestamp";
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private String urlHash;
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private Map mem;
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public Bookmark(String urlHash, Map map){
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this.urlHash=urlHash;
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this.mem=map;
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}
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public Bookmark(String url){
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if(!url.toLowerCase().startsWith("http://")){
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url="http://"+url;
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}
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this.urlHash=plasmaURL.urlHash(url);
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mem=new HashMap();
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mem.put(BOOKMARK_URL, url);
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try {
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Map oldmap= bookmarksTable.get(this.urlHash);
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if(oldmap != null && oldmap.containsKey(BOOKMARK_TIMESTAMP)){
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mem.put(BOOKMARK_TIMESTAMP, oldmap.get(BOOKMARK_TIMESTAMP)); //preserve timestamp on edit
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}else{
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mem.put(BOOKMARK_TIMESTAMP, String.valueOf(System.currentTimeMillis()));
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}
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bookmarksDate bmDate=getDate((String) mem.get(BOOKMARK_TIMESTAMP));
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bmDate.add(this.urlHash);
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bmDate.setDatesTable();
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removeBookmark(this.urlHash); //prevent empty tags
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} catch (IOException e) {
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//entry not yet present (normal case)
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mem.put(BOOKMARK_TIMESTAMP, String.valueOf(System.currentTimeMillis()));
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}
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}
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public Bookmark(String urlHash, URL url){
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this.urlHash=urlHash;
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mem=new HashMap();
|
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mem.put(BOOKMARK_URL, url.toString());
|
|
}
|
|
public Bookmark(String urlHash, String url){
|
|
this.urlHash=urlHash;
|
|
mem=new HashMap();
|
|
mem.put(BOOKMARK_URL, url);
|
|
}
|
|
public String getUrlHash(){
|
|
return urlHash;
|
|
}
|
|
public String getUrl(){
|
|
return (String) this.mem.get(BOOKMARK_URL);
|
|
}
|
|
public String getTags(){
|
|
if(this.mem.containsKey(BOOKMARK_TAGS)){
|
|
return (String)this.mem.get(BOOKMARK_TAGS);
|
|
}
|
|
return "";
|
|
}
|
|
public String getDescription(){
|
|
if(this.mem.containsKey(BOOKMARK_DESCRIPTION)){
|
|
return (String) this.mem.get(BOOKMARK_DESCRIPTION);
|
|
}
|
|
return "";
|
|
}
|
|
public String getTitle(){
|
|
if(this.mem.containsKey(BOOKMARK_TITLE)){
|
|
return (String) this.mem.get(BOOKMARK_TITLE);
|
|
}
|
|
return (String) this.mem.get(BOOKMARK_URL);
|
|
}
|
|
public boolean getPublic(){
|
|
if(this.mem.containsKey(BOOKMARK_PUBLIC)){
|
|
return ((String) this.mem.get(BOOKMARK_PUBLIC)).equals("public");
|
|
}else{
|
|
return false;
|
|
}
|
|
}
|
|
public void setProperty(String name, String value){
|
|
mem.put(name, value);
|
|
//setBookmarksTable();
|
|
}
|
|
public void addTag(String tag){
|
|
Vector tags;
|
|
if(!mem.containsKey(BOOKMARK_TAGS)){
|
|
tags=new Vector();
|
|
}else{
|
|
tags=(Vector)mem.get(BOOKMARK_TAGS);
|
|
}
|
|
tags.add(tag);
|
|
this.setTags(tags);
|
|
}
|
|
public void setTags(Vector tags){
|
|
mem.put(BOOKMARK_TAGS, listManager.vector2string(tags));
|
|
Iterator it=tags.iterator();
|
|
while(it.hasNext()){
|
|
String tagName=(String) it.next();
|
|
Tag tag=getTag(tagName);
|
|
if(tag == null){
|
|
tag=new Tag(tagName);
|
|
}
|
|
tag.add(getUrlHash());
|
|
tag.setTagsTable();
|
|
}
|
|
}
|
|
public void setBookmarksTable(){
|
|
try {
|
|
bookmarksDB.this.bookmarksTable.set(getUrlHash(), mem);
|
|
} catch (IOException e) {}
|
|
}
|
|
public long getTimeStamp(){
|
|
if(mem.containsKey(BOOKMARK_TIMESTAMP)){
|
|
return Long.parseLong((String)mem.get(BOOKMARK_TIMESTAMP));
|
|
}else{
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
public class tagIterator implements Iterator{
|
|
kelondroDyn.dynKeyIterator tagIter;
|
|
bookmarksDB.Tag nextEntry;
|
|
public tagIterator(boolean up) throws IOException {
|
|
this.tagIter = bookmarksDB.this.tagsTable.keys(up, false);
|
|
this.nextEntry = null;
|
|
}
|
|
public boolean hasNext() {
|
|
try {
|
|
return this.tagIter.hasNext();
|
|
} catch (kelondroException e) {
|
|
//resetDatabase();
|
|
return false;
|
|
}
|
|
}
|
|
public Object next() {
|
|
try {
|
|
return getTag((String) this.tagIter.next());
|
|
} catch (kelondroException e) {
|
|
//resetDatabase();
|
|
return null;
|
|
}
|
|
}
|
|
public void remove() {
|
|
if (this.nextEntry != null) {
|
|
try {
|
|
Object tagName = this.nextEntry.getTagName();
|
|
if (tagName != null) removeTag((String) tagName);
|
|
} catch (kelondroException e) {
|
|
//resetDatabase();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
public class bookmarkIterator implements Iterator{
|
|
kelondroDyn.dynKeyIterator bookmarkIter;
|
|
bookmarksDB.Bookmark nextEntry;
|
|
public bookmarkIterator(boolean up) throws IOException {
|
|
this.bookmarkIter = bookmarksDB.this.bookmarksTable.keys(up, false);
|
|
this.nextEntry = null;
|
|
}
|
|
public boolean hasNext() {
|
|
try {
|
|
return this.bookmarkIter.hasNext();
|
|
} catch (kelondroException e) {
|
|
//resetDatabase();
|
|
return false;
|
|
}
|
|
}
|
|
public Object next() {
|
|
try {
|
|
return getBookmark((String) this.bookmarkIter.next());
|
|
} catch (kelondroException e) {
|
|
//resetDatabase();
|
|
return null;
|
|
}
|
|
}
|
|
public void remove() {
|
|
if (this.nextEntry != null) {
|
|
try {
|
|
Object bookmarkName = this.nextEntry.getUrlHash();
|
|
if (bookmarkName != null) removeBookmark((String) bookmarkName);
|
|
} catch (kelondroException e) {
|
|
//resetDatabase();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
/**
|
|
* Comparator to sort the Bookmarks with Timestamps
|
|
*/
|
|
public class bookmarkComparator implements Comparator{
|
|
public int compare(Object obj1, Object obj2){
|
|
Bookmark bm1=getBookmark((String)obj1);
|
|
Bookmark bm2=getBookmark((String)obj2);
|
|
//TODO: what happens, if there is a big difference? (to much for int)
|
|
return (new Long(bm1.getTimeStamp() - bm2.getTimeStamp())).intValue();
|
|
}
|
|
}
|
|
}
|