You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
331 lines
11 KiB
331 lines
11 KiB
// wikiBoard.java
|
|
// -------------------------------------
|
|
// (C) by Michael Peter Christen; mc@anomic.de
|
|
// first published on http://www.anomic.de
|
|
// Frankfurt, Germany, 2004
|
|
// last major change: 20.07.2004
|
|
//
|
|
// This program is free software; you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation; either version 2 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program; if not, write to the Free Software
|
|
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
//
|
|
// Using this software in any meaning (reading, learning, copying, compiling,
|
|
// running) means that you agree that the Author(s) is (are) not responsible
|
|
// for cost, loss of data or any harm that may be caused directly or indirectly
|
|
// by usage of this softare or this documentation. The usage of this software
|
|
// is on your own risk. The installation and usage (starting/running) of this
|
|
// software may allow other people or application to access your computer and
|
|
// any attached devices and is highly dependent on the configuration of the
|
|
// software which must be done by the user of the software; the author(s) is
|
|
// (are) also not responsible for proper configuration and usage of the
|
|
// software, even if provoked by documentation provided together with
|
|
// the software.
|
|
//
|
|
// Any changes to this file according to the GPL as documented in the file
|
|
// gpl.txt aside this file in the shipment you received can be done to the
|
|
// lines that follows this copyright notice here, but changes must not be
|
|
// done inside the copyright notive above. A re-distribution must contain
|
|
// the intact and unchanged copyright notice.
|
|
// Contributions and changes to the program code must be marked as such.
|
|
|
|
package de.anomic.data;
|
|
|
|
import java.io.File;
|
|
import java.io.IOException;
|
|
import java.text.ParseException;
|
|
import java.text.SimpleDateFormat;
|
|
import java.util.Date;
|
|
import java.util.GregorianCalendar;
|
|
import java.util.HashMap;
|
|
import java.util.Iterator;
|
|
import java.util.Map;
|
|
import java.util.TimeZone;
|
|
|
|
import de.anomic.kelondro.kelondroDyn;
|
|
import de.anomic.kelondro.kelondroMap;
|
|
import de.anomic.kelondro.kelondroRecords;
|
|
import de.anomic.server.serverCodings;
|
|
|
|
public class wikiBoard {
|
|
|
|
public static final int keyLength = 64;
|
|
private static final String dateFormat = "yyyyMMddHHmmss";
|
|
private static final int recordSize = 512;
|
|
|
|
private static TimeZone GMTTimeZone = TimeZone.getTimeZone("PST");
|
|
private static SimpleDateFormat SimpleFormatter = new SimpleDateFormat(dateFormat);
|
|
|
|
private kelondroMap datbase = null;
|
|
private kelondroMap bkpbase = null;
|
|
private HashMap authors = new HashMap();
|
|
private int sn = 0;
|
|
|
|
public wikiBoard(File actpath, File bkppath, int bufferkb) throws IOException {
|
|
new File(actpath.getParent()).mkdir();
|
|
if (datbase == null) {
|
|
if (actpath.exists())
|
|
datbase = new kelondroMap(new kelondroDyn(actpath, bufferkb/2 * 0x40));
|
|
else
|
|
datbase = new kelondroMap(new kelondroDyn(actpath, bufferkb/2 * 0x400, keyLength, recordSize));
|
|
}
|
|
new File(bkppath.getParent()).mkdir();
|
|
if (bkpbase == null) {
|
|
if (bkppath.exists())
|
|
bkpbase = new kelondroMap(new kelondroDyn(bkppath, bufferkb/2 * 0x400));
|
|
else
|
|
bkpbase = new kelondroMap(new kelondroDyn(bkppath, bufferkb/2 * 0x400, keyLength + dateFormat.length(), recordSize));
|
|
}
|
|
sn = 0;
|
|
}
|
|
|
|
public int sizeOfTwo() {
|
|
return datbase.size() + bkpbase.size();
|
|
}
|
|
|
|
public int size() {
|
|
return datbase.size();
|
|
}
|
|
|
|
public int[] dbCacheChunkSize() {
|
|
int[] db = datbase.cacheChunkSize();
|
|
int[] bk = bkpbase.cacheChunkSize();
|
|
int[] i = new int[3];
|
|
i[kelondroRecords.CP_LOW] = (db[kelondroRecords.CP_LOW] + bk[kelondroRecords.CP_LOW]) / 2;
|
|
i[kelondroRecords.CP_MEDIUM] = (db[kelondroRecords.CP_MEDIUM] + bk[kelondroRecords.CP_MEDIUM]) / 2;
|
|
i[kelondroRecords.CP_HIGH] = (db[kelondroRecords.CP_HIGH] + bk[kelondroRecords.CP_HIGH]) / 2;
|
|
return i;
|
|
}
|
|
|
|
public int[] dbCacheFillStatus() {
|
|
int[] a = datbase.cacheFillStatus();
|
|
int[] b = bkpbase.cacheFillStatus();
|
|
return new int[]{a[0] + b[0], a[1] + b[1], a[2] + b[2], a[3] + b[3]};
|
|
}
|
|
|
|
public void close() throws IOException {
|
|
datbase.close();
|
|
bkpbase.close();
|
|
}
|
|
|
|
private static String dateString() {
|
|
return dateString(new GregorianCalendar(GMTTimeZone).getTime());
|
|
}
|
|
|
|
private static String dateString(Date date) {
|
|
return SimpleFormatter.format(date);
|
|
}
|
|
|
|
private static String normalize(String key) {
|
|
if (key == null) return "null";
|
|
return key.trim().toLowerCase();
|
|
}
|
|
|
|
public static String webalize(String key) {
|
|
if (key == null) return "null";
|
|
key = key.trim().toLowerCase();
|
|
int p;
|
|
while ((p = key.indexOf(" ")) >= 0)
|
|
key = key.substring(0, p) + "%20" + key.substring(p +1);
|
|
return key;
|
|
}
|
|
|
|
public String guessAuthor(String ip) {
|
|
String author = (String) authors.get(ip);
|
|
//yacyCore.log.logDebug("DEBUG: guessing author for ip = " + ip + " is '" + author + "', authors = " + authors.toString());
|
|
return author;
|
|
}
|
|
|
|
public entry newEntry(String subject, String author, String ip, String reason, byte[] page) {
|
|
return new entry(normalize(subject), author, ip, reason, page);
|
|
}
|
|
|
|
public class entry {
|
|
|
|
String key;
|
|
Map record;
|
|
|
|
public entry(String subject, String author, String ip, String reason, byte[] page) {
|
|
record = new HashMap();
|
|
key = subject;
|
|
if (key.length() > keyLength) key = key.substring(0, keyLength);
|
|
record.put("date", dateString());
|
|
if ((author == null) || (author.length() == 0)) author = "anonymous";
|
|
record.put("author", serverCodings.enhancedCoder.encodeBase64(author.getBytes()));
|
|
if ((ip == null) || (ip.length() == 0)) ip = "";
|
|
record.put("ip", ip);
|
|
if ((reason == null) || (reason.length() == 0)) reason = "";
|
|
record.put("reason", serverCodings.enhancedCoder.encodeBase64(reason.getBytes()));
|
|
if (page == null)
|
|
record.put("page", "");
|
|
else
|
|
record.put("page", serverCodings.enhancedCoder.encodeBase64(page));
|
|
authors.put(ip, author);
|
|
//System.out.println("DEBUG: setting author " + author + " for ip = " + ip + ", authors = " + authors.toString());
|
|
}
|
|
|
|
private entry(String key, Map record) {
|
|
this.key = key;
|
|
this.record = record;
|
|
}
|
|
|
|
public String subject() {
|
|
return key;
|
|
}
|
|
|
|
public Date date() {
|
|
try {
|
|
String c = (String) record.get("date");
|
|
return SimpleFormatter.parse(c);
|
|
} catch (ParseException e) {
|
|
return new Date();
|
|
}
|
|
}
|
|
|
|
public String author() {
|
|
String a = (String) record.get("author");
|
|
if (a == null) return "anonymous";
|
|
byte[] b = serverCodings.enhancedCoder.decodeBase64(a);
|
|
if (b == null) return "anonymous";
|
|
return new String(b);
|
|
}
|
|
|
|
public String reason() {
|
|
String r = (String) record.get("reason");
|
|
if (r == null) return "";
|
|
byte[] b = serverCodings.enhancedCoder.decodeBase64(r);
|
|
if (b == null) return "unknown";
|
|
return new String(b);
|
|
}
|
|
|
|
public byte[] page() {
|
|
String m = (String) record.get("page");
|
|
if (m == null) return new byte[0];
|
|
byte[] b = serverCodings.enhancedCoder.decodeBase64(m);
|
|
if (b == null) return "".getBytes();
|
|
return b;
|
|
}
|
|
|
|
private void setAncestorDate(Date date) {
|
|
record.put("bkp", dateString(date));
|
|
}
|
|
|
|
private Date getAncestorDate() {
|
|
try {
|
|
String c = (String) record.get("date");
|
|
if (c == null) return null;
|
|
return SimpleFormatter.parse(c);
|
|
} catch (ParseException e) {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
/*
|
|
public boolean hasAncestor() {
|
|
Date ancDate = getAncestorDate();
|
|
if (ancDate == null) return false;
|
|
try {
|
|
return bkpbase.has(key + dateString(ancDate));
|
|
} catch (IOException e) {
|
|
return false;
|
|
}
|
|
}
|
|
*/
|
|
|
|
public entry getAncestor() {
|
|
Date ancDate = getAncestorDate();
|
|
if (ancDate == null) return null;
|
|
return read(key + dateString(ancDate), bkpbase);
|
|
}
|
|
|
|
private void setChild(String subject) {
|
|
record.put("child", serverCodings.enhancedCoder.encodeBase64(subject.getBytes()));
|
|
}
|
|
|
|
private String getChildName() {
|
|
String c = (String) record.get("child");
|
|
if (c == null) return null;
|
|
byte[] subject = serverCodings.enhancedCoder.decodeBase64(c);
|
|
if (subject == null) return null;
|
|
return new String(subject);
|
|
}
|
|
|
|
public boolean hasChild() {
|
|
String c = (String) record.get("child");
|
|
if (c == null) return false;
|
|
byte[] subject = serverCodings.enhancedCoder.decodeBase64(c);
|
|
return (subject != null);
|
|
}
|
|
|
|
public entry getChild() {
|
|
String childName = getChildName();
|
|
if (childName == null) return null;
|
|
return read(childName, datbase);
|
|
}
|
|
}
|
|
|
|
public String write(entry page) {
|
|
// writes a new page and returns key
|
|
try {
|
|
// first load the old page
|
|
entry oldEntry = read(page.key);
|
|
// set the bkp date of the new page to the date of the old page
|
|
Date oldDate = oldEntry.date();
|
|
page.setAncestorDate(oldDate);
|
|
oldEntry.setChild(page.subject());
|
|
// write the backup
|
|
//System.out.println("key = " + page.key);
|
|
//System.out.println("oldDate = " + oldDate);
|
|
//System.out.println("record = " + oldEntry.record.toString());
|
|
bkpbase.set(page.key + dateString(oldDate), oldEntry.record);
|
|
// write the new page
|
|
datbase.set(page.key, page.record);
|
|
return page.key;
|
|
} catch (IOException e) {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
public entry read(String key) {
|
|
return read(key, datbase);
|
|
}
|
|
|
|
private entry read(String key, kelondroMap base) {
|
|
try {
|
|
key = normalize(key);
|
|
if (key.length() > keyLength) key = key.substring(0, keyLength);
|
|
Map record = base.get(key);
|
|
if (record == null)
|
|
return newEntry(key, "anonymous", "127.0.0.1", "New Page", "".getBytes());
|
|
else
|
|
return new entry(key, record);
|
|
} catch (IOException e) {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
/*
|
|
public boolean has(String key) {
|
|
try {
|
|
return datbase.has(normalize(key));
|
|
} catch (IOException e) {
|
|
return false;
|
|
}
|
|
}
|
|
*/
|
|
|
|
public Iterator keys(boolean up) throws IOException {
|
|
return datbase.keys(up, false);
|
|
}
|
|
|
|
}
|