- setting the same default ranking in the solr interface as for YaCy

search interfaces if no other ranking attributes are given
- using the YaCy ranking in the GSA interface only if there was not
given a GSA-style sort attribute
- to avoid confusion about correct ranking attributes, only the default
'0'-ranking profile is used and not scenario-adopted (site, date)
because that should be configurable in the web interface before it is
used actually for ranking.

htroot/gsa/searchresult.java

@@ -23,7 +23,6 @@ import java.io.OutputStream;
 import java.io.OutputStreamWriter;
 import java.io.Writer;
 import java.util.ArrayList;
-import java.util.Map;
 
 import net.yacy.cora.document.UTF8;
 import net.yacy.cora.federate.solr.Ranking;
@@ -116,11 +115,24 @@ public class searchresult {
         post.put(CommonParams.ROWS, post.remove("num"));
         post.put(CommonParams.ROWS, Math.min(post.getInt(CommonParams.ROWS, 10), (authenticated) ? 5000 : 100));
         
-        Ranking ranking = sb.index.fulltext().getDefaultConfiguration().getRanking(0);
+        // set ranking
-        String bq = ranking.getBoostQuery();
+        if (post.containsKey("sort")) {
-        String bf = ranking.getBoostFunction();
+            // if a gsa-style sort attribute is given, use this to set the solr sort attribute
-        if (bq.length() > 0) post.put("bq", bq); // a boost query that moves double content to the back
+            GSAResponseWriter.Sort sort = new GSAResponseWriter.Sort(post.get(CommonParams.SORT, ""));
-        if (bf.length() > 0) post.put(ranking.getMethod() == Ranking.BoostFunctionMode.add ? "bf" : "boost", bf); // a boost function extension, see http://wiki.apache.org/solr/ExtendedDisMax#bf_.28Boost_Function.2C_additive.29
+            String sorts = sort.toSolr();
+            if (sorts == null) {
+                post.remove(CommonParams.SORT);
+            } else {
+                post.put(CommonParams.SORT, sorts);
+            }
+        } else {
+            // if no such sort attribute is given, use the ranking as configured for YaCy
+            Ranking ranking = sb.index.fulltext().getDefaultConfiguration().getRanking(0);
+            String bq = ranking.getBoostQuery();
+            String bf = ranking.getBoostFunction();
+            if (bq.length() > 0) post.put("bq", bq); // a boost query that moves double content to the back
+            if (bf.length() > 0) post.put(ranking.getMethod() == Ranking.BoostFunctionMode.add ? "bf" : "boost", bf); // a boost function extension, see http://wiki.apache.org/solr/ExtendedDisMax#bf_.28Boost_Function.2C_additive.29
+        }
         post.put(CommonParams.FL,
                 CollectionSchema.content_type.getSolrFieldName() + ',' +
                 CollectionSchema.id.getSolrFieldName() + ',' +
@@ -137,16 +149,10 @@ public class searchresult {
         post.put("hl.simple.pre", "<b>");
         post.put("hl.simple.post", "</b>");
         post.put("hl.fragsize", Integer.toString(SearchEvent.SNIPPET_MAX_LENGTH));
-        GSAResponseWriter.Sort sort = new GSAResponseWriter.Sort(post.get(CommonParams.SORT, ""));
+        
-        String sorts = sort.toSolr();
-        if (sorts == null) {
-            post.remove(CommonParams.SORT);
-        } else {
-            post.put(CommonParams.SORT, sorts);
-        }
         String[] site = post.remove("site"); // example: col1|col2
-        String[] access = post.remove("access");
+        //String[] access = post.remove("access");
-        String[] entqr = post.remove("entqr");
+        //String[] entqr = post.remove("entqr");
 
         // add sites operator
         if (site != null && site[0].length() > 0) {
@@ -184,6 +190,7 @@ public class searchresult {
         }
 
         // set some context for the writer
+        /*
         Map<Object,Object> context = req.getContext();
         context.put("ip", header.get("CLIENTIP", ""));
         context.put("client", "vsm_frontent");
@@ -191,6 +198,7 @@ public class searchresult {
         context.put("site", site == null ? "" : site);
         context.put("access", access == null ? "p" : access[0]);
         context.put("entqr", entqr == null ? "3" : entqr[0]);
+        */
         
         // write the result directly to the output stream
         Writer ow = new FastWriter(new OutputStreamWriter(out, UTF8.charset));

htroot/solr/select.java

@@ -28,6 +28,7 @@ import java.util.Map;
 import javax.servlet.ServletException;
 
 import net.yacy.cora.document.UTF8;
+import net.yacy.cora.federate.solr.Ranking;
 import net.yacy.cora.federate.solr.SolrServlet;
 import net.yacy.cora.federate.solr.connector.EmbeddedSolrConnector;
 import net.yacy.cora.federate.solr.responsewriter.EnhancedXMLResponseWriter;
@@ -161,6 +162,16 @@ public class select {
         if (!post.containsKey(CommonParams.ROWS)) post.put(CommonParams.ROWS, post.remove("maximumRecords", 10)); // sru patch
         post.put(CommonParams.ROWS, Math.min(post.getInt(CommonParams.ROWS, 10), (authenticated) ? 10000 : 100));
         
+        // set default ranking if this is not given in the request
+        if (!post.containsKey("sort")) {
+            if (!post.containsKey("defType")) post.put("defType", "edismax");        
+            Ranking ranking = sb.index.fulltext().getDefaultConfiguration().getRanking(0);
+            String bq = ranking.getBoostQuery();
+            String bf = ranking.getBoostFunction();
+            if (!post.containsKey("bq") && bq.length() > 0) post.put("bq", bq); // a boost query that moves double content to the back
+            if (!(post.containsKey("bf") || post.containsKey("boost")) && bf.length() > 0) post.put(ranking.getMethod() == Ranking.BoostFunctionMode.add ? "bf" : "boost", bf); // a boost function extension, see http://wiki.apache.org/solr/ExtendedDisMax#bf_.28Boost_Function.2C_additive.29
+        }
+        
         // get a response writer for the result
         String wt = post.get(CommonParams.WT, "xml"); // maybe use /solr/select?q=*:*&start=0&rows=10&wt=exml
         QueryResponseWriter responseWriter = RESPONSE_WRITER.get(wt);

source/net/yacy/search/query/QueryParams.java

@@ -386,7 +386,8 @@ public final class QueryParams {
         final SolrQuery params = new SolrQuery();
         params.setQuery(this.queryGoal.collectionQueryString(this.indexSegment.fulltext().getDefaultConfiguration()).toString());
         params.setParam("defType", "edismax");
-        Ranking ranking = indexSegment.fulltext().getDefaultConfiguration().getRanking(this.ranking.coeff_date == RankingProfile.COEFF_MAX ? 1 : (this.modifier.sitehash != null || this.modifier.sitehost != null) ? 2 : 0); // for a by-date ranking select different ranking profile
+        Ranking ranking = indexSegment.fulltext().getDefaultConfiguration().getRanking(0);
+        //Ranking ranking = indexSegment.fulltext().getDefaultConfiguration().getRanking(this.ranking.coeff_date == RankingProfile.COEFF_MAX ? 1 : (this.modifier.sitehash != null || this.modifier.sitehost != null) ? 2 : 0); // for a by-date ranking select different ranking profile
         String bq = ranking.getBoostQuery();
         String bf = ranking.getBoostFunction();
         if (bq.length() > 0) params.setParam("bq", bq); // a boost query that moves double content to the back

source/net/yacy/search/query/SearchEvent.java

@@ -1104,7 +1104,7 @@ public final class SearchEvent {
         Element<URIMetadataNode> localEntryElement = this.nodeStack.sizeQueue() > 0 ? this.nodeStack.poll() : null;
         URIMetadataNode node = localEntryElement == null ? null : localEntryElement.getElement();
         if (node != null) {
-            String solrsnippet = this.snippets.remove(ASCII.String(node.hash())); // we ca remove this because it's used only once
+            String solrsnippet = this.snippets.remove(ASCII.String(node.hash())); // we can remove this because it's used only once
             if (solrsnippet != null && solrsnippet.length() > 0) {
                 final TextSnippet snippet = new TextSnippet(node.hash(), solrsnippet, true, ResultClass.SOURCE_CACHE, "");
                 ResultEntry re = new ResultEntry(node, this.query.getSegment(), this.peers, snippet, null, 0);