// 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 java.util.List; import de.anomic.data.listManager; import de.anomic.index.Reference; import de.anomic.index.indexReferenceBlacklist; import de.anomic.index.URLMetadata; import de.anomic.kelondro.order.Bitfield; import de.anomic.kelondro.order.DateFormatter; import de.anomic.server.serverObjects; import de.anomic.yacy.yacySeed; import de.anomic.yacy.yacyURL; import de.anomic.yacy.dht.PeerSelection; 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 Bitfield compileFlags(final serverObjects post) { final Bitfield b = new Bitfield(4); if (post.get("allurl", "").equals("on")) return null; if (post.get("flags") != null) { if (post.get("flags","").length() == 0) return null; return new Bitfield(4, post.get("flags")); } if (post.get("description", "").equals("on")) b.set(Reference.flag_app_dc_description, true); if (post.get("title", "").equals("on")) b.set(Reference.flag_app_dc_title, true); if (post.get("creator", "").equals("on")) b.set(Reference.flag_app_dc_creator, true); if (post.get("subject", "").equals("on")) b.set(Reference.flag_app_dc_subject, true); if (post.get("url", "").equals("on")) b.set(Reference.flag_app_dc_identifier, true); if (post.get("emphasized", "").equals("on")) b.set(Reference.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(final serverObjects prop, final String startHash, final plasmaSwitchboard sb) { // list known hosts yacySeed seed; int hc = 0; prop.put("searchresult_keyhash", startHash); final Iterator e = PeerSelection.getAcceptRemoteIndexSeeds(sb.webIndex.seedDB, startHash, sb.webIndex.seedDB.sizeConnected(), true); while (e.hasNext()) { seed = 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(final serverObjects prop, final plasmaSwitchboard sb, final String keyhash, final Bitfield filter) { final plasmaSearchQuery query = new plasmaSearchQuery(keyhash, -1, sb.getRanking(), filter); final plasmaSearchRankingProcess ranked = new plasmaSearchRankingProcess(sb.webIndex, 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()[Reference.flag_app_dc_description]); prop.put("searchresult_title", ranked.flagCount()[Reference.flag_app_dc_title]); prop.put("searchresult_creator", ranked.flagCount()[Reference.flag_app_dc_creator]); prop.put("searchresult_subject", ranked.flagCount()[Reference.flag_app_dc_subject]); prop.put("searchresult_url", ranked.flagCount()[Reference.flag_app_dc_identifier]); prop.put("searchresult_emphasized", ranked.flagCount()[Reference.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(final serverObjects prop, final String keyhash, final String keystring, final plasmaSearchRankingProcess ranked, final Bitfield flags, final 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; URLMetadata 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) + "
" + us.substring(20, 40) + "...") : ((us.length() > 30) ? (us.substring(0, 20) + "
" + 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", DateFormatter.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(Reference.flag_app_dc_identifier)) ? "appears in url, " : "") + ((entry.word().flags().get(Reference.flag_app_dc_title)) ? "appears in title, " : "") + ((entry.word().flags().get(Reference.flag_app_dc_creator)) ? "appears in author, " : "") + ((entry.word().flags().get(Reference.flag_app_dc_subject)) ? "appears in subject, " : "") + ((entry.word().flags().get(Reference.flag_app_dc_description)) ? "appears in description, " : "") + ((entry.word().flags().get(Reference.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; } final Iterator iter = ranked.miss(); // iterates url hash strings while (iter.hasNext()) { us = 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(final serverObjects prop, final List lists) { prop.put("genUrlList_blacklists", lists.size()); int i = 0; for (String list : lists) prop.put("genUrlList_blacklists_" + i++ + "_name", list); } }