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.
541 lines
22 KiB
541 lines
22 KiB
// CrawlProfile.java
|
|
// ------------------------
|
|
// part of YaCy
|
|
// (C) by Michael Peter Christen; mc@yacy.net
|
|
// first published on http://www.anomic.de
|
|
// Frankfurt, Germany, 2004
|
|
// last major change: 25.02.2004
|
|
//
|
|
// 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
|
|
|
|
package de.anomic.crawler;
|
|
|
|
import java.io.File;
|
|
import java.io.IOException;
|
|
import java.util.HashMap;
|
|
import java.util.HashSet;
|
|
import java.util.Iterator;
|
|
import java.util.Map;
|
|
import java.util.concurrent.ConcurrentHashMap;
|
|
import java.util.regex.Pattern;
|
|
|
|
import net.yacy.kelondro.blob.Heap;
|
|
import net.yacy.kelondro.blob.MapView;
|
|
import net.yacy.kelondro.logging.Log;
|
|
import net.yacy.kelondro.order.Base64Order;
|
|
import net.yacy.kelondro.order.CloneableIterator;
|
|
import net.yacy.kelondro.order.Digest;
|
|
import net.yacy.kelondro.order.NaturalOrder;
|
|
|
|
import de.anomic.kelondro.util.FileUtils;
|
|
import de.anomic.kelondro.util.kelondroException;
|
|
import de.anomic.yacy.yacySeedDB;
|
|
import de.anomic.yacy.yacyURL;
|
|
|
|
public class CrawlProfile {
|
|
|
|
public static final String MATCH_ALL = ".*";
|
|
public static final String MATCH_NEVER = "";
|
|
public static final String MATCH_BAD_URL = ".*memberlist.*|.*previous.*|.*next.*|.*p=.*";
|
|
|
|
static HashMap<String, ConcurrentHashMap<String, DomProfile>> domsCache = new HashMap<String, ConcurrentHashMap<String, DomProfile>>();
|
|
|
|
MapView profileTable;
|
|
private final File profileTableFile;
|
|
|
|
public CrawlProfile(final File file) throws IOException {
|
|
this.profileTableFile = file;
|
|
profileTableFile.getParentFile().mkdirs();
|
|
final Heap dyn = new Heap(profileTableFile, yacySeedDB.commonHashLength, NaturalOrder.naturalOrder, 1024 * 64);
|
|
profileTable = new MapView(dyn, 500, '_');
|
|
profileIterator pi = new profileIterator(true);
|
|
entry e;
|
|
while (pi.hasNext()) {
|
|
e = pi.next();
|
|
Log.logInfo("CrawlProfiles", "loaded Profile " + e.handle() + ": " + e.name());
|
|
}
|
|
}
|
|
|
|
public void clear() {
|
|
// deletes the profile database and creates a new one
|
|
if (profileTable != null) profileTable.close();
|
|
FileUtils.deletedelete(profileTableFile);
|
|
profileTableFile.getParentFile().mkdirs();
|
|
Heap dyn = null;
|
|
try {
|
|
dyn = new Heap(profileTableFile, yacySeedDB.commonHashLength, NaturalOrder.naturalOrder, 1024 * 64);
|
|
} catch (IOException e) {
|
|
e.printStackTrace();
|
|
}
|
|
profileTable = new MapView(dyn, 500, '_');
|
|
}
|
|
|
|
public void close() {
|
|
if (profileTable != null) profileTable.close();
|
|
this.profileTable = null;
|
|
}
|
|
|
|
public void finalize() {
|
|
this.close();
|
|
}
|
|
|
|
public int size() {
|
|
return profileTable.size();
|
|
}
|
|
|
|
public Iterator<entry> profiles(final boolean up) {
|
|
// enumerates profile entries
|
|
try {
|
|
return new profileIterator(up);
|
|
} catch (final IOException e) {
|
|
return new HashSet<entry>().iterator();
|
|
}
|
|
}
|
|
|
|
public class profileIterator implements Iterator<entry> {
|
|
// the iterator iterates all keys, which are byte[] objects
|
|
CloneableIterator<byte[]> handleIterator;
|
|
String lastkey;
|
|
public profileIterator(final boolean up) throws IOException {
|
|
handleIterator = profileTable.keys(up, false);
|
|
lastkey = null;
|
|
}
|
|
public boolean hasNext() {
|
|
try {
|
|
return handleIterator.hasNext();
|
|
} catch (final kelondroException e) {
|
|
clear();
|
|
return false;
|
|
}
|
|
}
|
|
public entry next() {
|
|
try {
|
|
lastkey = new String(handleIterator.next());
|
|
return getEntry(lastkey);
|
|
} catch (final kelondroException e) {
|
|
clear();
|
|
return null;
|
|
}
|
|
}
|
|
public void remove() {
|
|
if (lastkey != null) try {
|
|
removeEntry(lastkey);
|
|
} catch (final kelondroException e) {
|
|
clear();
|
|
}
|
|
}
|
|
}
|
|
|
|
public void removeEntry(final String handle) {
|
|
try {
|
|
profileTable.remove(handle);
|
|
} catch (final IOException e) {}
|
|
}
|
|
|
|
public entry newEntry(final Map<String, String> mem) {
|
|
final entry ne = new entry(mem);
|
|
try {
|
|
profileTable.put(ne.handle(), ne.map());
|
|
} catch (final kelondroException e) {
|
|
clear();
|
|
try {
|
|
profileTable.put(ne.handle(), ne.map());
|
|
} catch (final IOException ee) {
|
|
e.printStackTrace();
|
|
System.exit(0);
|
|
}
|
|
} catch (final IOException e) {
|
|
clear();
|
|
try {
|
|
profileTable.put(ne.handle(), ne.map());
|
|
} catch (final IOException ee) {
|
|
e.printStackTrace();
|
|
System.exit(0);
|
|
}
|
|
}
|
|
return ne;
|
|
}
|
|
|
|
public entry newEntry( final String name,
|
|
final yacyURL startURL,
|
|
final String mustmatch, final String mustnotmatch,
|
|
final int generalDepth,
|
|
final long recrawlIfOlder /*date*/, final int domFilterDepth, final int domMaxPages,
|
|
final boolean crawlingQ,
|
|
final boolean indexText, final boolean indexMedia,
|
|
final boolean storeHTCache, final boolean storeTXCache,
|
|
final boolean remoteIndexing,
|
|
final boolean xsstopw, final boolean xdstopw, final boolean xpstopw,
|
|
final int cacheStrategy) {
|
|
|
|
final entry ne = new entry(
|
|
name, startURL,
|
|
mustmatch, mustnotmatch,
|
|
generalDepth,
|
|
recrawlIfOlder, domFilterDepth, domMaxPages,
|
|
crawlingQ,
|
|
indexText, indexMedia,
|
|
storeHTCache, storeTXCache,
|
|
remoteIndexing,
|
|
xsstopw, xdstopw, xpstopw,
|
|
cacheStrategy);
|
|
try {
|
|
profileTable.put(ne.handle(), ne.map());
|
|
} catch (final kelondroException e) {
|
|
clear();
|
|
try {
|
|
profileTable.put(ne.handle(), ne.map());
|
|
} catch (final IOException ee) {
|
|
e.printStackTrace();
|
|
System.exit(0);
|
|
}
|
|
} catch (final IOException e) {
|
|
clear();
|
|
try {
|
|
profileTable.put(ne.handle(), ne.map());
|
|
} catch (final IOException ee) {
|
|
e.printStackTrace();
|
|
System.exit(0);
|
|
}
|
|
}
|
|
return ne;
|
|
}
|
|
|
|
public boolean hasEntry(final String handle) {
|
|
try {
|
|
return profileTable.has(handle);
|
|
} catch (final IOException e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
public entry getEntry(final String handle) {
|
|
Map<String, String> m;
|
|
try {
|
|
m = profileTable.get(handle);
|
|
} catch (final IOException e) {
|
|
return null;
|
|
}
|
|
if (m == null) return null;
|
|
return new entry(m);
|
|
}
|
|
|
|
public void changeEntry(final entry e, final String propName, final String newValue) throws IOException {
|
|
e.mem.put(propName, newValue);
|
|
profileTable.put(e.handle(), e.mem);
|
|
}
|
|
|
|
public long getRecrawlDate(final long oldTimeMinutes) {
|
|
return System.currentTimeMillis() - (60000L * oldTimeMinutes);
|
|
}
|
|
|
|
public static class DomProfile {
|
|
|
|
public String referrer;
|
|
public int depth, count;
|
|
|
|
public DomProfile(final String ref, final int d) {
|
|
this.referrer = ref;
|
|
this.depth = d;
|
|
this.count = 1;
|
|
}
|
|
|
|
public void inc() {
|
|
this.count++;
|
|
}
|
|
|
|
}
|
|
|
|
public final static int CACHE_STRATEGY_NOCACHE = 0; // never use the cache, all content from fresh internet source
|
|
public final static int CACHE_STRATEGY_IFFRESH = 1; // use the cache if the cache exists and is fresh using the proxy-fresh rules
|
|
public final static int CACHE_STRATEGY_IFEXIST = 2; // use the cache if the cache exist. Do no check freshness. Othervise use online source.
|
|
public final static int CACHE_STRATEGY_CACHEONLY = 3; // never go online, use all content from cache. If no cache exist, treat content as unavailable
|
|
|
|
public static class entry {
|
|
// this is a simple record structure that hold all properties of a single crawl start
|
|
|
|
public static final String HANDLE = "handle";
|
|
public static final String NAME = "name";
|
|
public static final String START_URL = "startURL";
|
|
public static final String FILTER_MUSTMATCH = "generalFilter";
|
|
public static final String FILTER_MUSTNOTMATCH = "nevermatch";
|
|
public static final String DEPTH = "generalDepth";
|
|
public static final String RECRAWL_IF_OLDER = "recrawlIfOlder";
|
|
public static final String DOM_FILTER_DEPTH = "domFilterDepth";
|
|
public static final String DOM_MAX_PAGES = "domMaxPages";
|
|
public static final String CRAWLING_Q = "crawlingQ";
|
|
public static final String INDEX_TEXT = "indexText";
|
|
public static final String INDEX_MEDIA = "indexMedia";
|
|
public static final String STORE_HTCACHE = "storeHTCache";
|
|
public static final String STORE_TXCACHE = "storeTXCache";
|
|
public static final String REMOTE_INDEXING = "remoteIndexing";
|
|
public static final String XSSTOPW = "xsstopw";
|
|
public static final String XDSTOPW = "xdstopw";
|
|
public static final String XPSTOPW = "xpstopw";
|
|
public static final String CACHE_STRAGEGY = "cacheStrategy";
|
|
|
|
Map<String, String> mem;
|
|
private ConcurrentHashMap<String, DomProfile> doms;
|
|
private Pattern mustmatch = null, mustnotmatch = null;
|
|
|
|
|
|
public entry(final String name, final yacyURL startURL,
|
|
final String mustmatch,
|
|
final String mustnotmatch,
|
|
final int depth,
|
|
final long recrawlIfOlder /*date*/,
|
|
final int domFilterDepth, final int domMaxPages,
|
|
final boolean crawlingQ,
|
|
final boolean indexText, final boolean indexMedia,
|
|
final boolean storeHTCache, final boolean storeTXCache,
|
|
final boolean remoteIndexing,
|
|
final boolean xsstopw, final boolean xdstopw, final boolean xpstopw,
|
|
final int cacheStrategy) {
|
|
if (name == null || name.length() == 0) throw new NullPointerException("name must not be null");
|
|
final String handle = (startURL == null) ? Base64Order.enhancedCoder.encode(Digest.encodeMD5Raw(Long.toString(System.currentTimeMillis()))).substring(0, yacySeedDB.commonHashLength) : startURL.hash();
|
|
mem = new HashMap<String, String>();
|
|
mem.put(HANDLE, handle);
|
|
mem.put(NAME, name);
|
|
mem.put(START_URL, (startURL == null) ? "" : startURL.toNormalform(true, false));
|
|
mem.put(FILTER_MUSTMATCH, (mustmatch == null) ? MATCH_ALL : mustmatch);
|
|
mem.put(FILTER_MUSTNOTMATCH, (mustnotmatch == null) ? MATCH_NEVER : mustnotmatch);
|
|
mem.put(DEPTH, Integer.toString(depth));
|
|
mem.put(RECRAWL_IF_OLDER, Long.toString(recrawlIfOlder));
|
|
mem.put(DOM_FILTER_DEPTH, Integer.toString(domFilterDepth));
|
|
mem.put(DOM_MAX_PAGES, Integer.toString(domMaxPages));
|
|
mem.put(CRAWLING_Q, Boolean.toString(crawlingQ)); // crawling of urls with '?'
|
|
mem.put(INDEX_TEXT, Boolean.toString(indexText));
|
|
mem.put(INDEX_MEDIA, Boolean.toString(indexMedia));
|
|
mem.put(STORE_HTCACHE, Boolean.toString(storeHTCache));
|
|
mem.put(STORE_TXCACHE, Boolean.toString(storeTXCache));
|
|
mem.put(REMOTE_INDEXING, Boolean.toString(remoteIndexing));
|
|
mem.put(XSSTOPW, Boolean.toString(xsstopw)); // exclude static stop-words
|
|
mem.put(XDSTOPW, Boolean.toString(xdstopw)); // exclude dynamic stop-word
|
|
mem.put(XPSTOPW, Boolean.toString(xpstopw)); // exclude parent stop-words
|
|
mem.put(CACHE_STRAGEGY, Integer.toString(cacheStrategy));
|
|
doms = new ConcurrentHashMap<String, DomProfile>();
|
|
}
|
|
|
|
public String toString() {
|
|
final StringBuilder str = new StringBuilder();
|
|
|
|
if (this.mem != null) {
|
|
str.append(this.mem.toString());
|
|
}
|
|
|
|
return str.toString();
|
|
}
|
|
|
|
public entry(final Map<String, String> mem) {
|
|
this.mem = mem;
|
|
this.doms = domsCache.get(this.mem.get(HANDLE));
|
|
if (this.doms == null) this.doms = new ConcurrentHashMap<String, DomProfile>();
|
|
}
|
|
|
|
public Map<String, String> map() {
|
|
return mem;
|
|
}
|
|
public String handle() {
|
|
final String r = mem.get(HANDLE);
|
|
//if (r == null) return null;
|
|
return r;
|
|
}
|
|
public String name() {
|
|
final String r = mem.get(NAME);
|
|
if (r == null) return "";
|
|
return r;
|
|
}
|
|
public String startURL() {
|
|
final String r = mem.get(START_URL);
|
|
return r;
|
|
}
|
|
public Pattern mustMatchPattern() {
|
|
if (this.mustmatch == null) {
|
|
String r = mem.get(FILTER_MUSTMATCH);
|
|
if (r == null) r = MATCH_ALL;
|
|
this.mustmatch = Pattern.compile(r);
|
|
}
|
|
return this.mustmatch;
|
|
}
|
|
public Pattern mustNotMatchPattern() {
|
|
if (this.mustnotmatch == null) {
|
|
String r = mem.get(FILTER_MUSTNOTMATCH);
|
|
if (r == null) r = MATCH_NEVER;
|
|
this.mustnotmatch = Pattern.compile(r);
|
|
}
|
|
return this.mustnotmatch;
|
|
}
|
|
public int depth() {
|
|
final String r = mem.get(DEPTH);
|
|
if (r == null) return 0;
|
|
try {
|
|
return Integer.parseInt(r);
|
|
} catch (final NumberFormatException e) {
|
|
return 0;
|
|
}
|
|
}
|
|
public int cacheStrategy() {
|
|
final String r = mem.get(CACHE_STRAGEGY);
|
|
if (r == null) return CACHE_STRATEGY_IFFRESH;
|
|
try {
|
|
return Integer.parseInt(r);
|
|
} catch (final NumberFormatException e) {
|
|
return CACHE_STRATEGY_IFFRESH;
|
|
}
|
|
}
|
|
public long recrawlIfOlder() {
|
|
// returns a long (millis) that is the minimum age that
|
|
// an entry must have to be re-crawled
|
|
final String r = mem.get(RECRAWL_IF_OLDER);
|
|
if (r == null) return 0L;
|
|
try {
|
|
final long l = Long.parseLong(r);
|
|
return (l < 0) ? 0L : l;
|
|
} catch (final NumberFormatException e) {
|
|
return 0L;
|
|
}
|
|
}
|
|
public int domFilterDepth() {
|
|
// if the depth is equal or less to this depth,
|
|
// then the current url feeds with its domain the crawl filter
|
|
// if this is -1, all domains are feeded
|
|
final String r = mem.get(DOM_FILTER_DEPTH);
|
|
if (r == null) return Integer.MAX_VALUE;
|
|
try {
|
|
final int i = Integer.parseInt(r);
|
|
if (i < 0) return Integer.MAX_VALUE;
|
|
return i;
|
|
} catch (final NumberFormatException e) {
|
|
return Integer.MAX_VALUE;
|
|
}
|
|
}
|
|
public int domMaxPages() {
|
|
// this is the maximum number of pages that are crawled for a single domain
|
|
// if -1, this means no limit
|
|
final String r = mem.get(DOM_MAX_PAGES);
|
|
if (r == null) return Integer.MAX_VALUE;
|
|
try {
|
|
final int i = Integer.parseInt(r);
|
|
if (i < 0) return Integer.MAX_VALUE;
|
|
return i;
|
|
} catch (final NumberFormatException e) {
|
|
return Integer.MAX_VALUE;
|
|
}
|
|
}
|
|
public boolean crawlingQ() {
|
|
final String r = mem.get(CRAWLING_Q);
|
|
if (r == null) return false;
|
|
return (r.equals(Boolean.TRUE.toString()));
|
|
}
|
|
public boolean indexText() {
|
|
final String r = mem.get(INDEX_TEXT);
|
|
if (r == null) return true;
|
|
return (r.equals(Boolean.TRUE.toString()));
|
|
}
|
|
public boolean indexMedia() {
|
|
final String r = mem.get(INDEX_MEDIA);
|
|
if (r == null) return true;
|
|
return (r.equals(Boolean.TRUE.toString()));
|
|
}
|
|
public boolean storeHTCache() {
|
|
final String r = mem.get(STORE_HTCACHE);
|
|
if (r == null) return false;
|
|
return (r.equals(Boolean.TRUE.toString()));
|
|
}
|
|
public boolean storeTXCache() {
|
|
final String r = mem.get(STORE_TXCACHE);
|
|
if (r == null) return false;
|
|
return (r.equals(Boolean.TRUE.toString()));
|
|
}
|
|
public boolean remoteIndexing() {
|
|
final String r = mem.get(REMOTE_INDEXING);
|
|
if (r == null) return false;
|
|
return (r.equals(Boolean.TRUE.toString()));
|
|
}
|
|
public boolean excludeStaticStopwords() {
|
|
final String r = mem.get(XSSTOPW);
|
|
if (r == null) return false;
|
|
return (r.equals(Boolean.TRUE.toString()));
|
|
}
|
|
public boolean excludeDynamicStopwords() {
|
|
final String r = mem.get(XDSTOPW);
|
|
if (r == null) return false;
|
|
return (r.equals(Boolean.TRUE.toString()));
|
|
}
|
|
public boolean excludeParentStopwords() {
|
|
final String r = mem.get(XPSTOPW);
|
|
if (r == null) return false;
|
|
return (r.equals(Boolean.TRUE.toString()));
|
|
}
|
|
public void domInc(final String domain, final String referrer, final int depth) {
|
|
final DomProfile dp = doms.get(domain);
|
|
if (dp == null) {
|
|
// new domain
|
|
doms.put(domain, new DomProfile(referrer, depth));
|
|
} else {
|
|
// increase counter
|
|
dp.inc();
|
|
doms.put(domain, dp);
|
|
}
|
|
domsCache.put(this.mem.get(HANDLE), doms);
|
|
}
|
|
public boolean grantedDomAppearance(final String domain) {
|
|
final int max = domFilterDepth();
|
|
if (max == Integer.MAX_VALUE) return true;
|
|
final DomProfile dp = doms.get(domain);
|
|
if (dp == null) {
|
|
return 0 < max;
|
|
}
|
|
return dp.depth <= max;
|
|
}
|
|
|
|
public boolean grantedDomCount(final String domain) {
|
|
final int max = domMaxPages();
|
|
if (max == Integer.MAX_VALUE) return true;
|
|
final DomProfile dp = doms.get(domain);
|
|
if (dp == null) {
|
|
return 0 < max;
|
|
}
|
|
return dp.count <= max;
|
|
}
|
|
public int domSize() {
|
|
return doms.size();
|
|
}
|
|
public boolean domExists(final String domain) {
|
|
if (domFilterDepth() == Integer.MAX_VALUE) return true;
|
|
return doms.containsKey(domain);
|
|
}
|
|
|
|
public String domName(final boolean attr, final int index){
|
|
final Iterator<Map.Entry<String, DomProfile>> domnamesi = doms.entrySet().iterator();
|
|
String domname="";
|
|
Map.Entry<String, DomProfile> ey;
|
|
DomProfile dp;
|
|
int i = 0;
|
|
while ((domnamesi.hasNext()) && (i < index)) {
|
|
ey = domnamesi.next();
|
|
i++;
|
|
}
|
|
if(domnamesi.hasNext()){
|
|
ey = domnamesi.next();
|
|
dp = ey.getValue();
|
|
domname = ey.getKey() + ((attr) ? ("/r=" + dp.referrer + ", d=" + dp.depth + ", c=" + dp.count) : " ");
|
|
}
|
|
return domname;
|
|
}
|
|
}
|
|
|
|
}
|