yacy_search_server/source/de/anomic/plasma/plasmaSearchAPI.java
orbiter d2ba1fd2ab major step forward to network switching (target is easy switch to intranet or other networks .. and back)
This change is inspired by the need to see a network connected to the index it creates in a indexing team.
It is not possible to divide the network and the index. Therefore all control files for the network was moved to the network within the INDEX/<network-name> subfolder.
The remaining YACYDB is superfluous and can be deleted.
The yacyDB and yacyNews data structures are now part of plasmaWordIndex. Therefore all methods, using static access to yacySeedDB had to be rewritten. A special problem had been all the port forwarding methods which had been tightly mixed with seed construction. It was not possible to move the port forwarding functions to the place, meaning and usage of plasmaWordIndex. Therefore the port forwarding had been deleted (I guess nobody used it and it can be simulated by methods outside of YaCy).
The mySeed.txt is automatically moved to the current network position. A new effect causes that every network will create a different local seed file, which is ok, since the seed identifies the peer only against the network (it is the purpose of the seed hash to give a peer a location within the DHT).
No other functional change has been made. The next steps to enable network switcing are:
- shift of crawler tables from PLASMADB into the network (crawls are also network-specific)
- possibly shift of plasmaWordIndex code into yacy package (index management is network-specific)
- servlet to switch networks 

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4765 6c8d7289-2bf4-0310-a012-ef5d649a1542
2008-05-05 23:13:47 +00:00

203 lines
12 KiB
Java

// plasmaSearchAPI.java
// -----------------------
// (C) 2008 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany
// first published 2008 on http://yacy.net
//
// This is a part of YaCy, a peer-to-peer based web search engine
//
// $LastChangedDate: 2007-11-14 01:15:28 +0000 (Mi, 14 Nov 2007) $
// $LastChangedRevision: 4216 $
// $LastChangedBy: orbiter $
//
// LICENSE
//
// 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.plasma;
import java.util.Date;
import java.util.Iterator;
import de.anomic.data.listManager;
import de.anomic.index.indexRWIEntry;
import de.anomic.index.indexReferenceBlacklist;
import de.anomic.index.indexURLReference;
import de.anomic.kelondro.kelondroBitfield;
import de.anomic.server.serverDate;
import de.anomic.server.serverObjects;
import de.anomic.yacy.yacyCore;
import de.anomic.yacy.yacySeed;
import de.anomic.yacy.yacyURL;
public class plasmaSearchAPI {
// collection of static methods for a search servlet. Exists only to prevent that the same processes are defined more than once.
public static kelondroBitfield compileFlags(serverObjects post) {
kelondroBitfield b = new kelondroBitfield(4);
if (post.get("allurl", "").equals("on")) return null;
if (post.get("flags") != null) {
if (post.get("flags","").length() == 0) return null;
return new kelondroBitfield(4, (String) post.get("flags"));
}
if (post.get("description", "").equals("on")) b.set(indexRWIEntry.flag_app_dc_description, true);
if (post.get("title", "").equals("on")) b.set(indexRWIEntry.flag_app_dc_title, true);
if (post.get("creator", "").equals("on")) b.set(indexRWIEntry.flag_app_dc_creator, true);
if (post.get("subject", "").equals("on")) b.set(indexRWIEntry.flag_app_dc_subject, true);
if (post.get("url", "").equals("on")) b.set(indexRWIEntry.flag_app_dc_identifier, true);
if (post.get("emphasized", "").equals("on")) b.set(indexRWIEntry.flag_app_emphasized, true);
if (post.get("image", "").equals("on")) b.set(plasmaCondenser.flag_cat_hasimage, true);
if (post.get("audio", "").equals("on")) b.set(plasmaCondenser.flag_cat_hasaudio, true);
if (post.get("video", "").equals("on")) b.set(plasmaCondenser.flag_cat_hasvideo, true);
if (post.get("app", "").equals("on")) b.set(plasmaCondenser.flag_cat_hasapp, true);
if (post.get("indexof", "").equals("on")) b.set(plasmaCondenser.flag_cat_indexof, true);
return b;
}
public static void listHosts(serverObjects prop, String startHash) {
// list known hosts
yacySeed seed;
int hc = 0;
prop.put("searchresult_keyhash", startHash);
Iterator<yacySeed> e = yacyCore.dhtAgent.getAcceptRemoteIndexSeeds(startHash);
while (e.hasNext()) {
seed = (yacySeed) e.next();
if (seed != null) {
prop.put("searchresult_hosts_" + hc + "_hosthash", seed.hash);
prop.putHTML("searchresult_hosts_" + hc + "_hostname", seed.hash + " " + seed.get(yacySeed.NAME, "nameless"));
hc++;
}
}
prop.put("searchresult_hosts", hc);
}
public static plasmaSearchRankingProcess genSearchresult(serverObjects prop, plasmaSwitchboard sb, String keyhash, kelondroBitfield filter) {
plasmaSearchQuery query = new plasmaSearchQuery(keyhash, -1, sb.getRanking(), filter);
plasmaSearchRankingProcess ranked = new plasmaSearchRankingProcess(sb.wordIndex, query, Integer.MAX_VALUE, 1);
ranked.execQuery();
if (ranked.filteredCount() == 0) {
prop.put("searchresult", 2);
prop.put("searchresult_wordhash", keyhash);
} else {
prop.put("searchresult", 3);
prop.put("searchresult_allurl", ranked.filteredCount());
prop.put("searchresult_description", ranked.flagCount()[indexRWIEntry.flag_app_dc_description]);
prop.put("searchresult_title", ranked.flagCount()[indexRWIEntry.flag_app_dc_title]);
prop.put("searchresult_creator", ranked.flagCount()[indexRWIEntry.flag_app_dc_creator]);
prop.put("searchresult_subject", ranked.flagCount()[indexRWIEntry.flag_app_dc_subject]);
prop.put("searchresult_url", ranked.flagCount()[indexRWIEntry.flag_app_dc_identifier]);
prop.put("searchresult_emphasized", ranked.flagCount()[indexRWIEntry.flag_app_emphasized]);
prop.put("searchresult_image", ranked.flagCount()[plasmaCondenser.flag_cat_hasimage]);
prop.put("searchresult_audio", ranked.flagCount()[plasmaCondenser.flag_cat_hasaudio]);
prop.put("searchresult_video", ranked.flagCount()[plasmaCondenser.flag_cat_hasvideo]);
prop.put("searchresult_app", ranked.flagCount()[plasmaCondenser.flag_cat_hasapp]);
prop.put("searchresult_indexof", ranked.flagCount()[plasmaCondenser.flag_cat_indexof]);
}
return ranked;
}
public static void genURLList(serverObjects prop, String keyhash, String keystring, plasmaSearchRankingProcess ranked, kelondroBitfield flags, int maxlines) {
// search for a word hash and generate a list of url links
prop.put("genUrlList_keyHash", keyhash);
if (ranked.filteredCount() == 0) {
prop.put("genUrlList", 1);
prop.put("genUrlList_count", 0);
prop.put("searchresult", 2);
} else {
prop.put("genUrlList", 2);
prop.put("searchresult", 3);
prop.put("genUrlList_flags", (flags == null) ? "" : flags.exportB64());
prop.put("genUrlList_lines", maxlines);
int i = 0;
yacyURL url;
indexURLReference entry;
String us;
long rn = -1;
while ((ranked.size() > 0) && ((entry = ranked.bestURL(false)) != null)) {
if ((entry == null) || (entry.comp() == null)) continue;
url = entry.comp().url();
if (url == null) continue;
us = url.toNormalform(false, false);
if (rn == -1) rn = entry.ranking();
prop.put("genUrlList_urlList_"+i+"_urlExists", "1");
prop.put("genUrlList_urlList_"+i+"_urlExists_urlhxCount", i);
prop.putHTML("genUrlList_urlList_"+i+"_urlExists_urlhxValue", entry.word().urlHash());
prop.putHTML("genUrlList_urlList_"+i+"_urlExists_keyString", keystring);
prop.put("genUrlList_urlList_"+i+"_urlExists_keyHash", keyhash);
prop.putHTML("genUrlList_urlList_"+i+"_urlExists_urlString", us);
prop.put("genUrlList_urlList_"+i+"_urlExists_urlStringShort", (us.length() > 40) ? (us.substring(0, 20) + "<br>" + us.substring(20, 40) + "...") : ((us.length() > 30) ? (us.substring(0, 20) + "<br>" + us.substring(20)) : us));
prop.putNum("genUrlList_urlList_"+i+"_urlExists_ranking", (entry.ranking() - rn));
prop.putNum("genUrlList_urlList_"+i+"_urlExists_domlength", yacyURL.domLengthEstimation(entry.hash()));
prop.putNum("genUrlList_urlList_"+i+"_urlExists_ybr", plasmaSearchRankingProcess.ybr(entry.hash()));
prop.putNum("genUrlList_urlList_"+i+"_urlExists_tf", 1000.0 * entry.word().termFrequency());
prop.putNum("genUrlList_urlList_"+i+"_urlExists_authority", (ranked.getOrder() == null) ? -1 : ranked.getOrder().authority(entry.hash()));
prop.put("genUrlList_urlList_"+i+"_urlExists_date", serverDate.formatShortDay(new Date(entry.word().lastModified())));
prop.putNum("genUrlList_urlList_"+i+"_urlExists_wordsintitle", entry.word().wordsintitle());
prop.putNum("genUrlList_urlList_"+i+"_urlExists_wordsintext", entry.word().wordsintext());
prop.putNum("genUrlList_urlList_"+i+"_urlExists_phrasesintext", entry.word().phrasesintext());
prop.putNum("genUrlList_urlList_"+i+"_urlExists_llocal", entry.word().llocal());
prop.putNum("genUrlList_urlList_"+i+"_urlExists_lother", entry.word().lother());
prop.putNum("genUrlList_urlList_"+i+"_urlExists_hitcount", entry.word().hitcount());
prop.putNum("genUrlList_urlList_"+i+"_urlExists_worddistance", 0);
prop.putNum("genUrlList_urlList_"+i+"_urlExists_pos", entry.word().posintext());
prop.putNum("genUrlList_urlList_"+i+"_urlExists_phrase", entry.word().posofphrase());
prop.putNum("genUrlList_urlList_"+i+"_urlExists_posinphrase", entry.word().posinphrase());
prop.putNum("genUrlList_urlList_"+i+"_urlExists_urlcomps", entry.word().urlcomps());
prop.putNum("genUrlList_urlList_"+i+"_urlExists_urllength", entry.word().urllength());
prop.put("genUrlList_urlList_"+i+"_urlExists_props",
((entry.word().flags().get(plasmaCondenser.flag_cat_indexof)) ? "appears on index page, " : "") +
((entry.word().flags().get(plasmaCondenser.flag_cat_hasimage)) ? "contains images, " : "") +
((entry.word().flags().get(plasmaCondenser.flag_cat_hasaudio)) ? "contains audio, " : "") +
((entry.word().flags().get(plasmaCondenser.flag_cat_hasvideo)) ? "contains video, " : "") +
((entry.word().flags().get(plasmaCondenser.flag_cat_hasapp)) ? "contains applications, " : "") +
((entry.word().flags().get(indexRWIEntry.flag_app_dc_identifier)) ? "appears in url, " : "") +
((entry.word().flags().get(indexRWIEntry.flag_app_dc_title)) ? "appears in title, " : "") +
((entry.word().flags().get(indexRWIEntry.flag_app_dc_creator)) ? "appears in author, " : "") +
((entry.word().flags().get(indexRWIEntry.flag_app_dc_subject)) ? "appears in subject, " : "") +
((entry.word().flags().get(indexRWIEntry.flag_app_dc_description)) ? "appears in description, " : "") +
((entry.word().flags().get(indexRWIEntry.flag_app_emphasized)) ? "appears emphasized, " : "") +
((yacyURL.probablyRootURL(entry.word().urlHash())) ? "probably root url" : "")
);
if (plasmaSwitchboard.urlBlacklist.isListed(indexReferenceBlacklist.BLACKLIST_DHT, url)) {
prop.put("genUrlList_urlList_"+i+"_urlExists_urlhxChecked", "1");
}
i++;
if ((maxlines >= 0) && (i >= maxlines)) break;
}
Iterator<String> iter = ranked.miss(); // iterates url hash strings
while (iter.hasNext()) {
us = (String) iter.next();
prop.put("genUrlList_urlList_"+i+"_urlExists", "0");
prop.put("genUrlList_urlList_"+i+"_urlExists_urlhxCount", i);
prop.putHTML("genUrlList_urlList_"+i+"_urlExists_urlhxValue", us);
i++;
}
prop.put("genUrlList_urlList", i);
prop.putHTML("genUrlList_keyString", keystring);
prop.put("genUrlList_count", i);
putBlacklists(prop, listManager.getDirListing(listManager.listsPath));
}
}
public static void putBlacklists(serverObjects prop, String[] lists) {
prop.put("genUrlList_blacklists", lists.length);
for (int i=0; i<lists.length; i++)
prop.put("genUrlList_blacklists_" + i + "_name", lists[i]);
}
}