some refactoring of topic generation

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6018 6c8d7289-2bf4-0310-a012-ef5d649a1542

htroot/yacy/search.java

@@ -321,7 +321,7 @@ public final class search {
             
             // prepare reference hints
             final long timer = System.currentTimeMillis();
-            final ArrayList<NavigatorEntry> ws = theSearch.topics(10);
+            final ArrayList<NavigatorEntry> ws = theSearch.getTopicNavigator(10);
             final StringBuilder refstr = new StringBuilder();
             for (NavigatorEntry e: ws) {
                 refstr.append(",").append(e.name);

htroot/yacysearchtrailer.java

@@ -26,15 +26,11 @@
 
 import java.util.ArrayList;
 import java.util.Iterator;
-import java.util.TreeSet;
 
 import de.anomic.http.httpRequestHeader;
-import de.anomic.kelondro.order.NaturalOrder;
-import de.anomic.kelondro.util.SetTools;
 import de.anomic.plasma.plasmaProfiling;
 import de.anomic.plasma.plasmaSearchEvent;
 import de.anomic.plasma.plasmaSearchQuery;
-import de.anomic.plasma.plasmaSwitchboard;
 import de.anomic.plasma.plasmaSearchRankingProcess.NavigatorEntry;
 import de.anomic.server.serverObjects;
 import de.anomic.server.serverProfiling;
@@ -83,38 +79,17 @@ public class yacysearchtrailer {
         }
         
         // attach the bottom line with search references (topwords)
-        final ArrayList<NavigatorEntry> references = theSearch.topics(20);
+        final ArrayList<NavigatorEntry> references = theSearch.getTopicNavigator(10);
         if (references.size() > 0) {
-            // get the topwords
-            final TreeSet<String> topwords = new TreeSet<String>(NaturalOrder.naturalComparator);
-            for (NavigatorEntry e: references) {
-                if (e.name.matches("[a-z]+")) {
-                    topwords.add(e.name);
-                }
-            }
-
-            // filter out the badwords
-            final TreeSet<String> filteredtopwords = SetTools.joinConstructive(topwords, plasmaSwitchboard.badwords);
-            if (filteredtopwords.size() > 0) {
-                SetTools.excludeDestructive(topwords, plasmaSwitchboard.badwords);
-            }
-
-            // avoid stopwords being topwords
-            if (env.getConfig("filterOutStopwordsFromTopwords", "true").equals("true")) {
-                if ((plasmaSwitchboard.stopwords != null) && (plasmaSwitchboard.stopwords.size() > 0)) {
-                    SetTools.excludeDestructive(topwords, plasmaSwitchboard.stopwords);
-                }
-            }
-        
-            String word;
             int hintcount = 0;
-            final Iterator<String> iter = topwords.iterator();
+            NavigatorEntry e;
+            Iterator<NavigatorEntry> iter = references.iterator();
             while (iter.hasNext()) {
-                word = iter.next();
+            	e = iter.next();
                 if (/*(theQuery == null) ||*/ (theQuery.queryString == null)) break;
-                if (word != null) {
-                    prop.putHTML("words_" + hintcount + "_word", word);
-                    prop.putHTML("words_" + hintcount + "_newsearch", theQuery.queryString.replace(' ', '+') + "+" + word);
+                if (e.name != null) {
+                    prop.putHTML("words_" + hintcount + "_word", e.name);
+                    prop.putHTML("words_" + hintcount + "_newsearch", theQuery.queryString.replace(' ', '+') + "+" + e.name);
                     prop.put("words_" + hintcount + "_count", theQuery.displayResults());
                     prop.put("words_" + hintcount + "_offset", "0");
                     prop.put("words_" + hintcount + "_display", display);

source/de/anomic/plasma/plasmaSearchEvent.java

@@ -98,7 +98,6 @@ public final class plasmaSearchEvent {
     long urlRetrievalAllTime;
     long snippetComputationAllTime;
     public ResultURLs crawlResults;
-    private ArrayList<NavigatorEntry> hostNavigator;
     
     @SuppressWarnings("unchecked")
     private plasmaSearchEvent(final plasmaSearchQuery query,
@@ -124,7 +123,6 @@ public final class plasmaSearchEvent {
         this.snippetComputationAllTime = 0;
         this.workerThreads = null;
         this.localSearchThread = null;
-        this.hostNavigator = null;
         this.result = new SortStore<ResultEntry>(-1); // this is the result, enriched with snippets, ranked and ordered by ranking
         this.images = new SortStore<plasmaSnippetCache.MediaSnippet>(-1);
         this.failedURLs = new HashMap<String, String>(); // a map of urls to reason strings where a worker thread tried to work on, but failed.
@@ -578,13 +576,12 @@ public final class plasmaSearchEvent {
     }
     
     public ArrayList<NavigatorEntry> getHostNavigator(int maxentries) {
-    	if (this.hostNavigator != null) return this.hostNavigator;
-    	if (localSearchThread != null && localSearchThread.isAlive()) {
-             try {Thread.sleep(100L);} catch (final InterruptedException e) {}
-        }
-    	this.hostNavigator = rankedCache.getHostNavigator(10);
-    	if (this.hostNavigator.size() == 0) this.hostNavigator = null;
-    	return this.hostNavigator;
+    	return this.rankedCache.getHostNavigator(maxentries);
+    }
+    
+    public ArrayList<NavigatorEntry> getTopicNavigator(final int maxentries) {
+        // returns a set of words that are computed as toplist
+        return this.rankedCache.getTopicNavigator(maxentries);
     }
     
     public ResultEntry oneResult(final int item) {
@@ -730,6 +727,7 @@ public final class plasmaSearchEvent {
                 if (peer.equals(mypeerhash)) continue; // we dont need to ask ourself
                 urls = entry1.getValue();
                 words = wordsFromPeer(peer, urls);
+                assert words.length() >= 12 : "words = " + words;
                 //System.out.println("DEBUG-INDEXABSTRACT ***: peer " + peer + "   has urls: " + urls);
                 //System.out.println("DEBUG-INDEXABSTRACT ***: peer " + peer + " from words: " + words);
                 secondarySearchThreads[c++] = yacySearch.secondaryRemoteSearch(
@@ -776,11 +774,6 @@ public final class plasmaSearchEvent {
         //assert e != null;
     }
     
-    public ArrayList<NavigatorEntry> topics(final int count) {
-        // returns a set of words that are computed as toplist
-        return this.rankedCache.getTopicNavigator(count);
-    }
-    
     public static class ResultEntry {
         // payload objects
         private final URLMetadataRow urlentry;

source/de/anomic/plasma/plasmaSearchRankingProcess.java

@@ -459,9 +459,12 @@ public final class plasmaSearchRankingProcess {
         for (int i = 0; i < words.length; i++) {
             word = words[i].toLowerCase();
             Integer c;
-            if ((word.length() > 2) &&
-                ("http_html_php_ftp_www_com_org_net_gov_edu_index_home_page_for_usage_the_and_".indexOf(word) < 0) &&
-                (!(query.queryHashes.contains(Word.word2hash(word))))) {
+            if (word.length() > 2 &&
+                "http_html_php_ftp_www_com_org_net_gov_edu_index_home_page_for_usage_the_and_".indexOf(word) < 0 &&
+                !query.queryHashes.contains(Word.word2hash(word)) &&
+                word.matches("[a-z]+") &&
+                !plasmaSwitchboard.badwords.contains(word) &&
+                !plasmaSwitchboard.stopwords.contains(word)) {
                 c = ref.get(word);
                 if (c == null) ref.put(word, 1); else ref.put(word, c.intValue() + 1);
             }

source/de/anomic/yacy/yacySearch.java

@@ -289,7 +289,7 @@ public class yacySearch extends Thread {
             final String targethash, final Blacklist blacklist,
             final plasmaSearchRankingProfile rankingProfile,
             final Bitfield constraint, final TreeMap<byte[], String> clusterselection) {
-    	assert wordhashes.length() >= 12;
+    	assert wordhashes.length() >= 12 : "wordhashes = " + wordhashes;
     	
         // check own peer status
         if (peers.mySeed() == null || peers.mySeed().getPublicAddress() == null) { return null; }