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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.search.query.properties;
import com.yahoo.language.process.Encoder;
import com.yahoo.processing.IllegalInputException;
import com.yahoo.processing.request.CompoundName;
import com.yahoo.search.Query;
import com.yahoo.search.query.Model;
import com.yahoo.search.query.Presentation;
import com.yahoo.search.query.Properties;
import com.yahoo.search.query.Ranking;
import com.yahoo.search.query.Select;
import com.yahoo.search.query.profile.compiled.CompiledQueryProfileRegistry;
import com.yahoo.search.query.profile.types.ConversionContext;
import com.yahoo.search.query.profile.types.FieldDescription;
import com.yahoo.search.query.profile.types.QueryProfileType;
import com.yahoo.search.query.ranking.Diversity;
import com.yahoo.search.query.ranking.MatchPhase;
import com.yahoo.search.query.ranking.Matching;
import com.yahoo.search.query.ranking.SoftTimeout;
import com.yahoo.tensor.Tensor;
import java.util.Map;
/**
* Maps between the query model and text properties.
* This can be done simpler by using reflection but the performance penalty was not worth it,
* especially since we should be conservative in adding things to the query model.
*
* @author bratseth
*/
public class QueryProperties extends Properties {
private Query query;
private final CompiledQueryProfileRegistry profileRegistry;
private final Encoder encoder;
public QueryProperties(Query query, CompiledQueryProfileRegistry profileRegistry, Encoder encoder) {
this.query = query;
this.profileRegistry = profileRegistry;
this.encoder = encoder;
}
public void setParentQuery(Query query) {
this.query = query;
super.setParentQuery(query);
}
@Override
public Object get(CompoundName key,
Map<String, String> context,
com.yahoo.processing.request.Properties substitution) {
if (key.size() == 2 && key.first().equals(Model.MODEL)) {
Model model = query.getModel();
if (key.last().equals(Model.QUERY_STRING)) return model.getQueryString();
if (key.last().equals(Model.TYPE)) return model.getType();
if (key.last().equals(Model.FILTER)) return model.getFilter();
if (key.last().equals(Model.DEFAULT_INDEX)) return model.getDefaultIndex();
if (key.last().equals(Model.LANGUAGE)) return model.getLanguage();
if (key.last().equals(Model.LOCALE)) return model.getLocale();
if (key.last().equals(Model.ENCODING)) return model.getEncoding();
if (key.last().equals(Model.SOURCES)) return model.getSources();
if (key.last().equals(Model.SEARCH_PATH)) return model.getSearchPath();
if (key.last().equals(Model.RESTRICT)) return model.getRestrict();
}
else if (key.first().equals(Ranking.RANKING)) {
Ranking ranking = query.getRanking();
if (key.size() == 2) {
if (key.last().equals(Ranking.LOCATION)) return ranking.getLocation();
if (key.last().equals(Ranking.PROFILE)) return ranking.getProfile();
if (key.last().equals(Ranking.SORTING)) return ranking.getSorting();
if (key.last().equals(Ranking.FRESHNESS)) return ranking.getFreshness();
if (key.last().equals(Ranking.QUERYCACHE)) return ranking.getQueryCache();
if (key.last().equals(Ranking.RERANKCOUNT)) return ranking.getRerankCount();
if (key.last().equals(Ranking.LIST_FEATURES)) return ranking.getListFeatures();
}
else if (key.size() >= 3 && key.get(1).equals(Ranking.MATCH_PHASE)) {
if (key.size() == 3) {
MatchPhase matchPhase = ranking.getMatchPhase();
if (key.last().equals(MatchPhase.ATTRIBUTE)) return matchPhase.getAttribute();
if (key.last().equals(MatchPhase.ASCENDING)) return matchPhase.getAscending();
if (key.last().equals(MatchPhase.MAX_HITS)) return matchPhase.getMaxHits();
if (key.last().equals(MatchPhase.MAX_FILTER_COVERAGE)) return matchPhase.getMaxFilterCoverage();
} else if (key.size() >= 4 && key.get(2).equals(Ranking.DIVERSITY)) {
Diversity diversity = ranking.getMatchPhase().getDiversity();
if (key.size() == 4) {
if (key.last().equals(Diversity.ATTRIBUTE)) return diversity.getAttribute();
if (key.last().equals(Diversity.MINGROUPS)) return diversity.getMinGroups();
} else if ((key.size() == 5) && key.get(3).equals(Diversity.CUTOFF)) {
if (key.last().equals(Diversity.FACTOR)) return diversity.getCutoffFactor();
if (key.last().equals(Diversity.STRATEGY)) return diversity.getCutoffStrategy();
}
}
}
else if (key.size() == 3 && key.get(1).equals(Ranking.SOFTTIMEOUT)) {
SoftTimeout soft = ranking.getSoftTimeout();
if (key.last().equals(SoftTimeout.ENABLE)) return soft.getEnable();
if (key.last().equals(SoftTimeout.FACTOR)) return soft.getFactor();
if (key.last().equals(SoftTimeout.TAILCOST)) return soft.getTailcost();
}
else if (key.size() == 3 && key.get(1).equals(Ranking.MATCHING)) {
Matching matching = ranking.getMatching();
if (key.last().equals(Matching.TERMWISELIMIT)) return matching.getTermwiseLimit();
if (key.last().equals(Matching.NUMTHREADSPERSEARCH)) return matching.getNumThreadsPerSearch();
if (key.last().equals(Matching.NUMSEARCHPARTITIIONS)) return matching.getNumSearchPartitions();
if (key.last().equals(Matching.MINHITSPERTHREAD)) return matching.getMinHitsPerThread();
}
else if (key.size() > 2) {
// pass the portion after "ranking.features/properties" down
if (key.get(1).equals(Ranking.FEATURES)) return ranking.getFeatures().getObject(key.rest().rest().toString());
if (key.get(1).equals(Ranking.PROPERTIES)) return ranking.getProperties().get(key.rest().rest().toString());
}
}
else if (key.first().equals(Select.SELECT)) {
if (key.size() == 1) {
return query.getSelect().getGroupingExpressionString();
}
else if (key.size() == 2) {
if (key.last().equals(Select.WHERE)) return query.getSelect().getWhereString();
if (key.last().equals(Select.GROUPING)) return query.getSelect().getGroupingString();
}
}
else if (key.size() == 2 && key.first().equals(Presentation.PRESENTATION)) {
if (key.last().equals(Presentation.BOLDING)) return query.getPresentation().getBolding();
if (key.last().equals(Presentation.SUMMARY)) return query.getPresentation().getSummary();
if (key.last().equals(Presentation.FORMAT)) return query.getPresentation().getFormat();
if (key.last().equals(Presentation.TIMING)) return query.getPresentation().getTiming();
if (key.last().equals(Presentation.SUMMARY_FIELDS)) return query.getPresentation().getSummaryFields();
}
else if (key.first().equals("rankfeature") || key.first().equals("featureoverride")) { // featureoverride is deprecated
return query.getRanking().getFeatures().getObject(key.rest().toString());
} else if (key.first().equals("rankproperty")) {
return query.getRanking().getProperties().get(key.rest().toString());
} else if (key.size()==1) {
if (key.equals(Query.HITS)) return query.getHits();
if (key.equals(Query.OFFSET)) return query.getOffset();
if (key.equals(Query.TRACE_LEVEL)) return query.getTraceLevel();
if (key.equals(Query.EXPLAIN_LEVEL)) return query.getExplainLevel();
if (key.equals(Query.TIMEOUT)) return query.getTimeout();
if (key.equals(Query.NO_CACHE)) return query.getNoCache();
if (key.equals(Query.GROUPING_SESSION_CACHE)) return query.getGroupingSessionCache();
if (key.toString().equals(Model.MODEL)) return query.getModel();
if (key.toString().equals(Ranking.RANKING)) return query.getRanking();
if (key.toString().equals(Presentation.PRESENTATION)) return query.getPresentation();
}
return super.get(key, context, substitution);
}
@Override
public void set(CompoundName key, Object value, Map<String,String> context) {
// Note: The defaults here are never used
try {
if (key.size() == 2 && key.first().equals(Model.MODEL)) {
Model model = query.getModel();
if (key.last().equals(Model.QUERY_STRING))
model.setQueryString(asString(value, ""));
else if (key.last().equals(Model.TYPE))
model.setType(asString(value, "ANY"));
else if (key.last().equals(Model.FILTER))
model.setFilter(asString(value, ""));
else if (key.last().equals(Model.DEFAULT_INDEX))
model.setDefaultIndex(asString(value, ""));
else if (key.last().equals(Model.LANGUAGE))
model.setLanguage(asString(value, ""));
else if (key.last().equals(Model.LOCALE))
model.setLocale(asString(value, ""));
else if (key.last().equals(Model.ENCODING))
model.setEncoding(asString(value,""));
else if (key.last().equals(Model.SEARCH_PATH))
model.setSearchPath(asString(value,""));
else if (key.last().equals(Model.SOURCES))
model.setSources(asString(value,""));
else if (key.last().equals(Model.RESTRICT))
model.setRestrict(asString(value,""));
else
throwIllegalParameter(key.last(), Model.MODEL);
}
else if (key.first().equals(Ranking.RANKING)) {
Ranking ranking = query.getRanking();
if (key.size() == 2) {
if (key.last().equals(Ranking.LOCATION))
ranking.setLocation(asString(value,""));
else if (key.last().equals(Ranking.PROFILE))
ranking.setProfile(asString(value,""));
else if (key.last().equals(Ranking.SORTING))
ranking.setSorting(asString(value,""));
else if (key.last().equals(Ranking.FRESHNESS))
ranking.setFreshness(asString(value, ""));
else if (key.last().equals(Ranking.QUERYCACHE))
ranking.setQueryCache(asBoolean(value, false));
else if (key.last().equals(Ranking.RERANKCOUNT))
ranking.setRerankCount(asInteger(value, null));
else if (key.last().equals(Ranking.LIST_FEATURES))
ranking.setListFeatures(asBoolean(value,false));
else
throwIllegalParameter(key.last(), Ranking.RANKING);
}
else if (key.size() >= 3 && key.get(1).equals(Ranking.MATCH_PHASE)) {
if (key.size() == 3) {
MatchPhase matchPhase = ranking.getMatchPhase();
if (key.last().equals(MatchPhase.ATTRIBUTE))
matchPhase.setAttribute(asString(value, null));
else if (key.last().equals(MatchPhase.ASCENDING))
matchPhase.setAscending(asBoolean(value, false));
else if (key.last().equals(MatchPhase.MAX_HITS))
matchPhase.setMaxHits(asLong(value, null));
else if (key.last().equals(MatchPhase.MAX_FILTER_COVERAGE))
matchPhase.setMaxFilterCoverage(asDouble(value, 0.2));
else
throwIllegalParameter(key.rest().toString(), Ranking.MATCH_PHASE);
} else if (key.size() > 3 && key.get(2).equals(Ranking.DIVERSITY)) {
Diversity diversity = ranking.getMatchPhase().getDiversity();
if (key.last().equals(Diversity.ATTRIBUTE)) {
diversity.setAttribute(asString(value, null));
}
else if (key.last().equals(Diversity.MINGROUPS)) {
diversity.setMinGroups(asLong(value, null));
}
else if ((key.size() > 4) && key.get(3).equals(Diversity.CUTOFF)) {
if (key.last().equals(Diversity.FACTOR))
diversity.setCutoffFactor(asDouble(value, 10.0));
else if (key.last().equals(Diversity.STRATEGY))
diversity.setCutoffStrategy(asString(value, "loose"));
else
throwIllegalParameter(key.rest().toString(), Diversity.CUTOFF);
}
else {
throwIllegalParameter(key.rest().toString(), Ranking.DIVERSITY);
}
}
}
else if (key.size() == 3 && key.get(1).equals(Ranking.SOFTTIMEOUT)) {
SoftTimeout soft = ranking.getSoftTimeout();
if (key.last().equals(SoftTimeout.ENABLE))
soft.setEnable(asBoolean(value, true));
else if (key.last().equals(SoftTimeout.FACTOR))
soft.setFactor(asDouble(value, null));
else if (key.last().equals(SoftTimeout.TAILCOST))
soft.setTailcost(asDouble(value, null));
else
throwIllegalParameter(key.rest().toString(), Ranking.SOFTTIMEOUT);
}
else if (key.size() == 3 && key.get(1).equals(Ranking.MATCHING)) {
Matching matching = ranking.getMatching();
if (key.last().equals(Matching.TERMWISELIMIT))
matching.setTermwiselimit(asDouble(value, 1.0));
else if (key.last().equals(Matching.NUMTHREADSPERSEARCH))
matching.setNumThreadsPerSearch(asInteger(value, 1));
else if (key.last().equals(Matching.NUMSEARCHPARTITIIONS))
matching.setNumSearchPartitions(asInteger(value, 1));
else if (key.last().equals(Matching.MINHITSPERTHREAD))
matching.setMinHitsPerThread(asInteger(value, 0));
else
throwIllegalParameter(key.rest().toString(), Ranking.MATCHING);
}
else if (key.size() > 2) {
String restKey = key.rest().rest().toString();
if (key.get(1).equals(Ranking.FEATURES))
setRankingFeature(query, restKey, toSpecifiedType(restKey,
value,
profileRegistry.getTypeRegistry().getComponent("features"),
context));
else if (key.get(1).equals(Ranking.PROPERTIES))
ranking.getProperties().put(restKey, toSpecifiedType(restKey,
value,
profileRegistry.getTypeRegistry().getComponent("properties"),
context));
else
throwIllegalParameter(key.rest().toString(), Ranking.RANKING);
}
}
else if (key.size() == 2 && key.first().equals(Presentation.PRESENTATION)) {
if (key.last().equals(Presentation.BOLDING))
query.getPresentation().setBolding(asBoolean(value, true));
else if (key.last().equals(Presentation.SUMMARY))
query.getPresentation().setSummary(asString(value, ""));
else if (key.last().equals(Presentation.FORMAT))
query.getPresentation().setFormat(asString(value,""));
else if (key.last().equals(Presentation.TIMING))
query.getPresentation().setTiming(asBoolean(value, true));
else if (key.last().equals(Presentation.SUMMARY_FIELDS))
query.getPresentation().setSummaryFields(asString(value,""));
else
throwIllegalParameter(key.last(), Presentation.PRESENTATION);
}
else if (key.first().equals(Select.SELECT)) {
if (key.size() == 1) {
query.getSelect().setGroupingExpressionString(asString(value, ""));
}
else if (key.size() == 2) {
if (key.last().equals(Select.WHERE))
query.getSelect().setWhereString(asString(value, ""));
else if (key.last().equals(Select.GROUPING))
query.getSelect().setGroupingString(asString(value, ""));
else
throwIllegalParameter(key.rest().toString(), Select.SELECT);
}
else {
throwIllegalParameter(key.last(), Select.SELECT);
}
}
else if (key.first().equals("rankfeature") || key.first().equals("featureoverride") ) { // featureoverride is deprecated
setRankingFeature(query, key.rest().toString(), toSpecifiedType(key.rest().toString(),
value,
profileRegistry.getTypeRegistry().getComponent("features"),
context));
} else if (key.first().equals("rankproperty")) {
query.getRanking().getProperties().put(key.rest().toString(), toSpecifiedType(key.rest().toString(),
value,
profileRegistry.getTypeRegistry().getComponent("properties"),
context));
} else if (key.size()==1) {
if (key.equals(Query.HITS))
query.setHits(asInteger(value,10));
else if (key.equals(Query.OFFSET))
query.setOffset(asInteger(value,0));
else if (key.equals(Query.TRACE_LEVEL))
query.setTraceLevel(asInteger(value,0));
else if (key.equals(Query.EXPLAIN_LEVEL))
query.setExplainLevel(asInteger(value,0));
else if (key.equals(Query.TIMEOUT))
query.setTimeout(value.toString());
else if (key.equals(Query.NO_CACHE))
query.setNoCache(asBoolean(value,false));
else if (key.equals(Query.GROUPING_SESSION_CACHE))
query.setGroupingSessionCache(asBoolean(value, true));
else
super.set(key,value,context);
} else
super.set(key,value,context);
}
catch (Exception e) { // Make sure error messages are informative. This should be moved out of this properties implementation
if (e.getMessage() != null && e.getMessage().startsWith("Could not set"))
throw e;
else
throw new IllegalInputException("Could not set '" + key + "' to '" + value + "'", e);
}
}
@Override
public Map<String, Object> listProperties(CompoundName prefix,
Map<String,String> context,
com.yahoo.processing.request.Properties substitution) {
Map<String, Object> properties = super.listProperties(prefix, context, substitution);
for (CompoundName queryProperty : Query.nativeProperties) {
if (queryProperty.hasPrefix(prefix)) {
Object value = this.get(queryProperty, context, substitution);
if (value != null)
properties.put(queryProperty.toString(), value);
}
}
return properties;
}
@SuppressWarnings("deprecation")
private void setRankingFeature(Query query, String key, Object value) {
if (value instanceof Tensor) {
query.getRanking().getFeatures().put(key, (Tensor) value);
}
else if (value instanceof Double) {
query.getRanking().getFeatures().put(key, (Double) value);
}
else {
String valueString = asString(value, "");
try {
query.getRanking().getFeatures().put(key, Double.parseDouble(valueString));
}
catch (IllegalArgumentException e) { // TODO: Throw instead on Vespa 8
query.getRanking().getFeatures().put(key, valueString);
}
}
}
private Object toSpecifiedType(String key, Object value, QueryProfileType type, Map<String,String> context) {
if ( ! ( value instanceof String)) return value; // already typed
if (type == null) return value; // no type info -> keep as string
FieldDescription field = type.getField(key);
if (field == null) return value; // ditto
return field.getType().convertFrom(value, new ConversionContext(profileRegistry, encoder, context));
}
private void throwIllegalParameter(String key,String namespace) {
throw new IllegalInputException("'" + key + "' is not a valid property in '" + namespace +
"'. See the query api for valid keys starting by '" + namespace + "'.");
}
@Override
public final Query getParentQuery() {
return query;
}
}
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