added default facet fields for json response format (stub)

htroot/gsa/searchresult.java

@@ -149,7 +149,7 @@ public class searchresult {
         if (connector == null) return null;
 
         // do the solr request
-        SolrQueryRequest req = connector.request(post.toSolrParams());
+        SolrQueryRequest req = connector.request(post.toSolrParams(null));
         SolrQueryResponse response = null;
         Exception e = null;
         try {response = connector.query(req);} catch (SolrException ee) {e = ee;}

htroot/solr/select.java

@@ -38,11 +38,13 @@ import net.yacy.cora.services.federated.solr.SolrServlet;
 import net.yacy.kelondro.logging.Log;
 import net.yacy.search.Switchboard;
 import net.yacy.search.SwitchboardConstants;
+import net.yacy.search.index.YaCySchema;
 import net.yacy.search.query.AccessTracker;
 import net.yacy.search.query.SnippetProcess;
 
 import org.apache.solr.common.SolrException;
 import org.apache.solr.common.params.CommonParams;
+import org.apache.solr.common.params.SolrParams;
 import org.apache.solr.common.util.FastWriter;
 import org.apache.solr.common.util.NamedList;
 import org.apache.solr.core.SolrCore;
@@ -154,7 +156,9 @@ public class select {
                                 "") : env.getConfig(SwitchboardConstants.GREETING, "");
             ((OpensearchResponseWriter) responseWriter).setTitle(promoteSearchPageGreeting);
         }
-        if (responseWriter instanceof OpensearchResponseWriter) {
+        
+        // if this is a call to YaCys special search formats, enhance the query with field assignments
+        if (responseWriter instanceof JsonResponseWriter || responseWriter instanceof OpensearchResponseWriter) {
             // add options for snippet generation
             post.put("hl", "true");
             post.put("hl.fl", "text_t,h1,h2");
@@ -167,8 +171,9 @@ public class select {
         EmbeddedSolrConnector connector = (EmbeddedSolrConnector) sb.index.fulltext().getLocalSolr();
         if (connector == null) return null;
 
-        // do the solr request
-        SolrQueryRequest req = connector.request(post.toSolrParams());
+        // do the solr request, generate facets if we use a special YaCy format
+        SolrParams params = post.toSolrParams(responseWriter instanceof JsonResponseWriter ? new YaCySchema[]{YaCySchema.host_s, YaCySchema.url_file_ext_s, YaCySchema.url_protocol_s} : null);
+        SolrQueryRequest req = connector.request(params);
         SolrQueryResponse response = null;
         Exception e = null;
         try {response = connector.query(req);} catch (SolrException ee) {e = ee;}

source/de/anomic/server/serverObjects.java

@@ -470,7 +470,7 @@ public class serverObjects extends HashMap<String, String> implements Cloneable
         return param.toString();
     }
 
-    public SolrParams toSolrParams() {
+    public SolrParams toSolrParams(YaCySchema[] facets) {
         // check if all required post fields are there
         if (!this.containsKey(CommonParams.DF)) this.put(CommonParams.DF, YaCySchema.text_t.name()); // set default field to all fields
         if (!this.containsKey(CommonParams.START)) this.put(CommonParams.START, "0"); // set default start item
@@ -480,6 +480,12 @@ public class serverObjects extends HashMap<String, String> implements Cloneable
         for (Map.Entry<String, String> e: this.entrySet()) {
             m.put(e.getKey(), new String[]{e.getValue()});
         }
+        if (facets != null && facets.length > 0) {
+            m.put("facet", new String[]{"true"});
+            String[] fs = new String[facets.length];
+            for (int i = 0; i < facets.length; i++) fs[i] = facets[i].name();
+            m.put("facet.field", fs);
+        }
         final SolrParams solrParams = new MultiMapSolrParams(m);
         return solrParams;
     }

source/net/yacy/cora/services/federated/solr/EnhancedXMLResponseWriter.java

@@ -67,15 +67,16 @@ public class EnhancedXMLResponseWriter implements QueryResponseWriter {
     @Override
     public void write(final Writer writer, final SolrQueryRequest request, final SolrQueryResponse rsp) throws IOException {
         writer.write(XML_START);
+        NamedList<?> values = rsp.getValues();
         
-        assert rsp.getValues().get("responseHeader") != null;
-        assert rsp.getValues().get("response") != null;
+        assert values.get("responseHeader") != null;
+        assert values.get("response") != null;
 
         @SuppressWarnings("unchecked")
         SimpleOrderedMap<Object> responseHeader = (SimpleOrderedMap<Object>) rsp.getResponseHeader();
-        DocSlice response = (DocSlice) rsp.getValues().get("response");
+        DocSlice response = (DocSlice) values.get("response");
         @SuppressWarnings("unchecked")
-        SimpleOrderedMap<Object> highlighting = (SimpleOrderedMap<Object>) rsp.getValues().get("highlighting");
+        SimpleOrderedMap<Object> highlighting = (SimpleOrderedMap<Object>) values.get("highlighting");
         writeProps(writer, "responseHeader", responseHeader); // this.writeVal("responseHeader", responseHeader);
         writeDocs(writer, request, response); // this.writeVal("response", response);
         writeProps(writer, "highlighting", highlighting);

source/net/yacy/cora/services/federated/solr/JsonResponseWriter.java

@@ -82,14 +82,21 @@ public class JsonResponseWriter implements QueryResponseWriter {
 
     @Override
     public void write(final Writer writer, final SolrQueryRequest request, final SolrQueryResponse rsp) throws IOException {
-        assert rsp.getValues().get("responseHeader") != null;
-        assert rsp.getValues().get("response") != null;
+
+        NamedList<?> values = rsp.getValues();
+        
+        assert values.get("responseHeader") != null;
+        assert values.get("response") != null;
 
         @SuppressWarnings("unchecked")
         SimpleOrderedMap<Object> responseHeader = (SimpleOrderedMap<Object>) rsp.getResponseHeader();
-        DocSlice response = (DocSlice) rsp.getValues().get("response");
+        DocSlice response = (DocSlice) values.get("response");
+        @SuppressWarnings("unchecked")
+        SimpleOrderedMap<Object> facetCounts = (SimpleOrderedMap<Object>) values.get("facet_counts");
         @SuppressWarnings("unchecked")
-        SimpleOrderedMap<Object> highlighting = (SimpleOrderedMap<Object>) rsp.getValues().get("highlighting");
+        SimpleOrderedMap<Object> facetFields = facetCounts == null || facetCounts.size() == 0 ? null : (SimpleOrderedMap<Object>) facetCounts.get("facet_fields");
+        @SuppressWarnings("unchecked")
+        SimpleOrderedMap<Object> highlighting = (SimpleOrderedMap<Object>) values.get("highlighting");
         Map<String, List<String>> snippets = OpensearchResponseWriter.highlighting(highlighting);
 
         // parse response header
@@ -202,6 +209,14 @@ public class JsonResponseWriter implements QueryResponseWriter {
         }
         writer.write("]\n".toCharArray());
         writer.write(",\n\"navigation\":[\n");
+
+        @SuppressWarnings("unchecked")
+        NamedList<Integer> hosts = facetFields == null ? null : (NamedList<Integer>) facetFields.get(YaCySchema.host_s.name());
+        @SuppressWarnings("unchecked")
+        NamedList<Integer> exts = facetFields == null ? null : (NamedList<Integer>) facetFields.get(YaCySchema.url_file_ext_s.name());
+        @SuppressWarnings("unchecked")
+        NamedList<Integer> prots = facetFields == null ? null : (NamedList<Integer>) facetFields.get(YaCySchema.url_protocol_s.name());
+        
         writer.write("{\"facetname\":\"filetypes\",\"displayname\":\"Filetypes\",\"type\":\"String\",\"min\":\"0\",\"max\":\"0\",\"mean\":\"0\",\"elements\":[]},\n".toCharArray());
         writer.write("{\"facetname\":\"protocols\",\"displayname\":\"Protocol\",\"type\":\"String\",\"min\":\"0\",\"max\":\"0\",\"mean\":\"0\",\"elements\":[]},\n".toCharArray());
         writer.write("{\"facetname\":\"domains\",\"displayname\":\"Domains\",\"type\":\"String\",\"min\":\"0\",\"max\":\"0\",\"mean\":\"0\",\"elements\":[]},\n".toCharArray());

source/net/yacy/cora/services/federated/solr/OpensearchResponseWriter.java

@@ -94,14 +94,17 @@ public class OpensearchResponseWriter implements QueryResponseWriter {
 
     @Override
     public void write(final Writer writer, final SolrQueryRequest request, final SolrQueryResponse rsp) throws IOException {
-        assert rsp.getValues().get("responseHeader") != null;
-        assert rsp.getValues().get("response") != null;
+        
+        NamedList<?> values = rsp.getValues();
+        
+        assert values.get("responseHeader") != null;
+        assert values.get("response") != null;
 
         @SuppressWarnings("unchecked")
         SimpleOrderedMap<Object> responseHeader = (SimpleOrderedMap<Object>) rsp.getResponseHeader();
-        DocSlice response = (DocSlice) rsp.getValues().get("response");
+        DocSlice response = (DocSlice) values.get("response");
         @SuppressWarnings("unchecked")
-        SimpleOrderedMap<Object> highlighting = (SimpleOrderedMap<Object>) rsp.getValues().get("highlighting");
+        SimpleOrderedMap<Object> highlighting = (SimpleOrderedMap<Object>) values.get("highlighting");
         Map<String, List<String>> snippets = highlighting(highlighting);
 
         // parse response header