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yacy_search_server
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introduce getQueryFields to return default query fields (queryparamter QF)

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calculated from boostfields config, making sure title, description, keywords and content is always searched.
- apply change to solrServlet makes sure every remote query uses at least all locally defined boost fields for search
- apply to local solr search
- simplify select query by using QF defaults
pull/1/head
reger 10 years ago
parent 53e4ae65d0
commit 9b0de2de64
4 changed files with 59 additions and 54 deletions
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43
source/net/yacy/cora/federate/solr/Ranking.java
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@ -38,7 +38,7 @@ public class Ranking {
private static int minTokenLen = 3; // to be filled with search.ranking.solr.doubledetection.minlength
private Map<SchemaDeclaration, Float> fieldBoosts;
private String name, filterQuery, boostQuery, boostFunction;
private String name, filterQuery, boostQuery, boostFunction, queryFields;
public Ranking() {
super();
@ -47,6 +47,7 @@ public class Ranking {
this.filterQuery = "";
this.boostQuery = "";
this.boostFunction = "";
this.queryFields = null;
}
public String getName() {
@ -69,6 +70,45 @@ public class Ranking {
return this.fieldBoosts.entrySet();
}
/**
* The boost fields are the fields to query used as Solr QF parameter
* This is currently used in local and remote queries, asure anticipated search relevant
* remote index fields are part of query fields (recommended: at least core
* metadata/Dublin Core text fields) even if disabled locally.
*
* @return queryfield string for Solr QF query parameter (list of fields with optonal boost factor "field1^5.0 field2 field3^2.0")
*/
public String getQueryFields() {
if (this.queryFields != null) return this.queryFields;
StringBuilder qf = new StringBuilder(80);
for (Map.Entry<SchemaDeclaration, Float> entry : this.fieldBoosts.entrySet()) {
SchemaDeclaration field = entry.getKey();
if ((field.getType() == SolrType.num_integer) // numerical and logical fields not usefull as default query field
|| (field.getType() == SolrType.num_long)
|| (field.getType() == SolrType.num_float)
|| (field.getType() == SolrType.num_double)
|| (field.getType() == SolrType.bool)) {
continue;
}
qf.append(field.getSolrFieldName());
final Float boost = entry.getValue();
if (boost != null) {
qf.append('^').append(boost.toString()).append(' ');
} else {
qf.append(' ');
}
}
// make sure Dublin Core Metadata core/text fields are set as default query field
if (!this.fieldBoosts.containsKey(CollectionSchema.title)) qf.append(CollectionSchema.title.getSolrFieldName()).append(' ');
if (!this.fieldBoosts.containsKey(CollectionSchema.text_t)) qf.append(CollectionSchema.text_t.getSolrFieldName()).append(' ');
if (!this.fieldBoosts.containsKey(CollectionSchema.description_txt)) qf.append(CollectionSchema.description_txt.getSolrFieldName()).append(' ');
if (!this.fieldBoosts.containsKey(CollectionSchema.keywords)) qf.append(CollectionSchema.keywords.getSolrFieldName());
this.queryFields = qf.toString(); // doesn't change often, cache it
return this.queryFields;
}
/**
* the updateDef is a definition string that comes from a configuration file.
* It should be a comma-separated list of field^boost values
@ -79,6 +119,7 @@ public class Ranking {
// call i.e. with "sku^20.0,url_paths_sxt^20.0,title^15.0,h1_txt^11.0,h2_txt^10.0,author^8.0,description_txt^5.0,keywords^2.0,text_t^1.0,fuzzy_signature_unique_b^100000.0"
if (boostDef == null || boostDef.length() == 0) return;
String[] bf = CommonPattern.COMMA.split(boostDef);
this.queryFields = null; // empty cached qf
this.fieldBoosts.clear();
for (String boost: bf) {
int p = boost.indexOf('^');

31
source/net/yacy/http/servlets/SolrSelectServlet.java
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@ -40,8 +40,6 @@ import javax.servlet.http.HttpServletResponse;
import net.yacy.cora.document.encoding.UTF8;
import net.yacy.cora.federate.solr.Ranking;
import net.yacy.cora.federate.solr.SchemaDeclaration;
import net.yacy.cora.federate.solr.SolrType;
import net.yacy.cora.federate.solr.connector.EmbeddedSolrConnector;
import net.yacy.cora.federate.solr.connector.SolrConnector;
import net.yacy.cora.federate.solr.responsewriter.EnhancedXMLResponseWriter;
@ -65,6 +63,7 @@ import org.apache.solr.common.SolrException;
import org.apache.solr.common.params.CommonParams;
import org.apache.solr.common.params.DisMaxParams;
import org.apache.solr.common.params.MultiMapSolrParams;
import static org.apache.solr.common.params.MultiMapSolrParams.addParam;
import org.apache.solr.common.util.NamedList;
import org.apache.solr.core.SolrCore;
import org.apache.solr.request.SolrQueryRequest;
@ -206,33 +205,17 @@ public class SolrSelectServlet extends HttpServlet {
if (connector == null) throw new ServletException("no core");
// add default queryfield parameter according to local ranking config (or defaultfield)
if (!mmsp.getMap().containsKey(DisMaxParams.QF) && !mmsp.getMap().containsKey(CommonParams.DF)) {
if (ranking != null && defaultConnector) { // ranking normally never null
// construct the queryfield parameter
StringBuilder qf = new StringBuilder(80);
for (Map.Entry<SchemaDeclaration, Float> entry : ranking.getBoostMap()) {
SchemaDeclaration field = entry.getKey();
final Float boost = entry.getValue();
if (field.getType() == SolrType.num_integer) {
continue;
}
qf.append(field.getSolrFieldName());
if (boost != null) {
qf.append('^').append(boost.toString()).append(' ');
if (ranking != null) { // ranking normally never null
final String qf = ranking.getQueryFields();
if (qf.length() > 4) { // make sure qf has content (else use df)
addParam(DisMaxParams.QF, qf, mmsp.getMap()); // add QF that we set to be best suited for our index
// TODO: if every peer applies a decent QF itself, this can be reverted to getMap().put()
} else {
qf.append("^1.0 ");
}
}
if (qf.length() > 4) // make sure qf has content (else use df)
mmsp.getMap().put(DisMaxParams.QF, new String[]{qf.toString()});
else
mmsp.getMap().put(CommonParams.DF, new String[]{CollectionSchema.text_t.getSolrFieldName()});
}
} else {
mmsp.getMap().put(CommonParams.DF, new String[]{CollectionSchema.text_t.getSolrFieldName()});
}
}
// do the solr request, generate facets if we use a special YaCy format
final SolrQueryResponse rsp;

23
source/net/yacy/search/query/QueryGoal.java
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@ -27,15 +27,11 @@ import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.Locale;
import java.util.Map;
import java.util.Set;
import java.util.SortedSet;
import java.util.TreeSet;
import net.yacy.cora.document.WordCache;
import net.yacy.cora.federate.solr.Ranking;
import net.yacy.cora.federate.solr.SchemaDeclaration;
import net.yacy.cora.federate.solr.SolrType;
import net.yacy.cora.federate.solr.connector.AbstractSolrConnector;
import net.yacy.cora.order.NaturalOrder;
import net.yacy.cora.protocol.Domains;
@ -336,28 +332,11 @@ public class QueryGoal {
// add goal query
StringBuilder w = getGoalQuery();
// combine these queries for all relevant fields
if (w.length() > 0) {
q.append(" AND (");
int wc = 0;
Float boost;
Ranking r = configuration.getRanking(rankingProfile);
for (Map.Entry<SchemaDeclaration,Float> entry: r.getBoostMap()) {
SchemaDeclaration field = entry.getKey();
boost = entry.getValue();
if (boost == null || boost.floatValue() <= 0.0f) continue;
if (configuration != null && !configuration.contains(field.getSolrFieldName())) continue;
if (field.getType() == SolrType.num_integer) continue;
if (wc > 0) q.append(" OR ");
q.append('(');
q.append(field.getSolrFieldName()).append(':').append(w);
if (boost != null) q.append('^').append(boost.toString());
q.append(')');
wc++;
}
q.append(w);
q.append(')');
}
return q;
}

10
source/net/yacy/search/query/QueryParams.java
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@ -369,11 +369,13 @@ public final class QueryParams {
final SolrQuery params = getBasicParams(getFacets);
int rankingProfile = this.ranking.coeff_date == RankingProfile.COEFF_MAX ? 1 : (this.modifier.sitehash != null || this.modifier.sitehost != null) ? 2 : 0;
params.setQuery(this.queryGoal.collectionTextQueryString(this.indexSegment.fulltext().getDefaultConfiguration(), rankingProfile, excludeintext_image).toString());
Ranking ranking = indexSegment.fulltext().getDefaultConfiguration().getRanking(rankingProfile); // for a by-date ranking select different ranking profile
Ranking actRanking = indexSegment.fulltext().getDefaultConfiguration().getRanking(rankingProfile); // for a by-date ranking select different ranking profile
String fq = ranking.getFilterQuery();
String bq = ranking.getBoostQuery();
String bf = ranking.getBoostFunction();
String fq = actRanking.getFilterQuery();
String bq = actRanking.getBoostQuery();
String bf = actRanking.getBoostFunction();
final String qf = actRanking.getQueryFields();
if (!qf.isEmpty()) params.setParam(DisMaxParams.QF, qf);
if (this.queryGoal.getIncludeSize() > 1) {
// add boost on combined words
if (bq.length() > 0) bq += " ";

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