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allow to execute term facet on more than one field

This commit is contained in:
kimchy 2010-10-06 13:39:02 +02:00
parent 31d94b19a1
commit 22ed71e2e6
6 changed files with 262 additions and 5 deletions
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9
modules/elasticsearch/src/main/java/org/elasticsearch/common/xcontent/XContentBuilder.java
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@ -239,6 +239,15 @@ public final class XContentBuilder {
return this;
}
public XContentBuilder field(String name, String... value) throws IOException {
startArray(name);
for (String o : value) {
value(o);
}
endArray();
return this;
}
public XContentBuilder field(String name, Object... value) throws IOException {
startArray(name);
for (Object o : value) {

18
modules/elasticsearch/src/main/java/org/elasticsearch/search/facets/terms/TermsFacetBuilder.java
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@ -34,6 +34,7 @@ import java.util.Map;
*/
public class TermsFacetBuilder extends AbstractFacetBuilder {
private String fieldName;
private String[] fieldsNames;
private int size = 10;
private String[] exclude;
private String regex;
@ -62,6 +63,11 @@ public class TermsFacetBuilder extends AbstractFacetBuilder {
return this;
}
public TermsFacetBuilder fields(String... fields) {
this.fieldsNames = fields;
return this;
}
public TermsFacetBuilder exclude(String... exclude) {
this.exclude = exclude;
return this;
@ -109,13 +115,21 @@ public class TermsFacetBuilder extends AbstractFacetBuilder {
}
@Override public void toXContent(XContentBuilder builder, Params params) throws IOException {
if (fieldName == null) {
if (fieldName == null && fieldsNames == null) {
throw new SearchSourceBuilderException("field must be set on terms facet for facet [" + name + "]");
}
builder.startObject(name);
builder.startObject(TermsFacetCollectorParser.NAME);
builder.field("field", fieldName);
if (fieldsNames != null) {
if (fieldsNames.length == 1) {
builder.field("field", fieldsNames[0]);
} else {
builder.field("fields", fieldsNames);
}
} else {
builder.field("field", fieldName);
}
builder.field("size", size);
if (exclude != null) {
builder.startArray("exclude");

6
modules/elasticsearch/src/main/java/org/elasticsearch/search/facets/terms/TermsFacetCollector.java
View File

@ -47,7 +47,7 @@ import java.util.regex.Pattern;
*/
public class TermsFacetCollector extends AbstractFacetCollector {
private static ThreadLocal<ThreadLocals.CleanableValue<Deque<TObjectIntHashMap<String>>>> cache = new ThreadLocal<ThreadLocals.CleanableValue<Deque<TObjectIntHashMap<String>>>>() {
static ThreadLocal<ThreadLocals.CleanableValue<Deque<TObjectIntHashMap<String>>>> cache = new ThreadLocal<ThreadLocals.CleanableValue<Deque<TObjectIntHashMap<String>>>>() {
@Override protected ThreadLocals.CleanableValue<Deque<TObjectIntHashMap<String>>> initialValue() {
return new ThreadLocals.CleanableValue<Deque<TObjectIntHashMap<java.lang.String>>>(new ArrayDeque<TObjectIntHashMap<String>>());
}
@ -139,7 +139,7 @@ public class TermsFacetCollector extends AbstractFacetCollector {
}
}
private TObjectIntHashMap<String> popFacets() {
static TObjectIntHashMap<String> popFacets() {
Deque<TObjectIntHashMap<String>> deque = cache.get().get();
if (deque.isEmpty()) {
deque.add(new TObjectIntHashMap<String>());
@ -149,7 +149,7 @@ public class TermsFacetCollector extends AbstractFacetCollector {
return facets;
}
private void pushFacets(TObjectIntHashMap<String> facets) {
static void pushFacets(TObjectIntHashMap<String> facets) {
facets.clear();
Deque<TObjectIntHashMap<String>> deque = cache.get().get();
if (deque != null) {

12
modules/elasticsearch/src/main/java/org/elasticsearch/search/facets/terms/TermsFacetCollectorParser.java
View File

@ -20,6 +20,7 @@
package org.elasticsearch.search.facets.terms;
import org.elasticsearch.common.collect.ImmutableSet;
import org.elasticsearch.common.collect.Lists;
import org.elasticsearch.common.regex.Regex;
import org.elasticsearch.common.xcontent.XContentParser;
import org.elasticsearch.search.facets.collector.FacetCollector;
@ -27,6 +28,7 @@ import org.elasticsearch.search.facets.collector.FacetCollectorParser;
import org.elasticsearch.search.internal.SearchContext;
import java.io.IOException;
import java.util.List;
import java.util.Map;
import java.util.regex.Pattern;
@ -46,6 +48,7 @@ public class TermsFacetCollectorParser implements FacetCollectorParser {
int size = 10;
String fieldName = null;
String[] fieldsNames = null;
XContentParser.Token token;
ImmutableSet<String> excluded = ImmutableSet.of();
String regex = null;
@ -68,6 +71,12 @@ public class TermsFacetCollectorParser implements FacetCollectorParser {
builder.add(parser.text());
}
excluded = builder.build();
} else if ("fields".equals(fieldName)) {
List<String> fields = Lists.newArrayListWithCapacity(4);
while ((token = parser.nextToken()) != XContentParser.Token.END_ARRAY) {
fields.add(parser.text());
}
fieldsNames = fields.toArray(new String[fields.size()]);
}
} else if (token.isValue()) {
if ("field".equals(fieldName)) {
@ -96,6 +105,9 @@ public class TermsFacetCollectorParser implements FacetCollectorParser {
if (regex != null) {
pattern = Regex.compile(regex, regexFlags);
}
if (fieldsNames != null) {
return new TermsFieldsFacetCollector(facetName, fieldsNames, size, comparatorType, context, excluded, pattern, scriptLang, script, params);
}
return new TermsFacetCollector(facetName, field, size, comparatorType, context, excluded, pattern, scriptLang, script, params);
}
}

203
modules/elasticsearch/src/main/java/org/elasticsearch/search/facets/terms/TermsFieldsFacetCollector.java Normal file
View File

@ -0,0 +1,203 @@
/*
* Licensed to Elastic Search and Shay Banon under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. Elastic Search licenses this
* file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.elasticsearch.search.facets.terms;
import org.apache.lucene.index.IndexReader;
import org.elasticsearch.common.collect.BoundedTreeSet;
import org.elasticsearch.common.collect.ImmutableList;
import org.elasticsearch.common.collect.ImmutableSet;
import org.elasticsearch.common.collect.Maps;
import org.elasticsearch.common.trove.TObjectIntHashMap;
import org.elasticsearch.common.trove.TObjectIntIterator;
import org.elasticsearch.index.cache.field.data.FieldDataCache;
import org.elasticsearch.index.field.data.FieldData;
import org.elasticsearch.index.mapper.MapperService;
import org.elasticsearch.script.search.SearchScript;
import org.elasticsearch.search.facets.Facet;
import org.elasticsearch.search.facets.support.AbstractFacetCollector;
import org.elasticsearch.search.internal.SearchContext;
import java.io.IOException;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import static org.elasticsearch.common.Strings.*;
/**
* @author kimchy (shay.banon)
*/
public class TermsFieldsFacetCollector extends AbstractFacetCollector {
private final FieldDataCache fieldDataCache;
private final String[] fieldsNames;
private final String[] indexFieldsNames;
private final InternalTermsFacet.ComparatorType comparatorType;
private final int size;
private final int numberOfShards;
private final FieldData.Type[] fieldsDataType;
private FieldData[] fieldsData;
private final StaticAggregatorValueProc aggregator;
private final SearchScript script;
public TermsFieldsFacetCollector(String facetName, String[] fieldsNames, int size, InternalTermsFacet.ComparatorType comparatorType, SearchContext context,
ImmutableSet<String> excluded, Pattern pattern, String scriptLang, String script, Map<String, Object> params) {
super(facetName);
this.fieldDataCache = context.fieldDataCache();
this.size = size;
this.comparatorType = comparatorType;
this.numberOfShards = context.numberOfShards();
this.fieldsNames = fieldsNames;
fieldsDataType = new FieldData.Type[fieldsNames.length];
fieldsData = new FieldData[fieldsNames.length];
indexFieldsNames = new String[fieldsNames.length];
for (int i = 0; i < fieldsNames.length; i++) {
MapperService.SmartNameFieldMappers smartMappers = context.mapperService().smartName(fieldsNames[i]);
if (smartMappers == null || !smartMappers.hasMapper()) {
this.indexFieldsNames[i] = fieldsNames[i];
this.fieldsDataType[i] = FieldData.Type.STRING;
} else {
this.indexFieldsNames[i] = smartMappers.mapper().names().indexName();
this.fieldsDataType[i] = smartMappers.mapper().fieldDataType();
}
}
if (script != null) {
this.script = new SearchScript(context.scriptSearchLookup(), scriptLang, script, params, context.scriptService());
} else {
this.script = null;
}
if (excluded.isEmpty() && pattern == null && this.script == null) {
aggregator = new StaticAggregatorValueProc(TermsFacetCollector.popFacets());
} else {
aggregator = new AggregatorValueProc(TermsFacetCollector.popFacets(), excluded, pattern, this.script);
}
}
@Override protected void doSetNextReader(IndexReader reader, int docBase) throws IOException {
for (int i = 0; i < fieldsNames.length; i++) {
fieldsData[i] = fieldDataCache.cache(fieldsDataType[i], reader, indexFieldsNames[i]);
}
if (script != null) {
script.setNextReader(reader);
}
}
@Override protected void doCollect(int doc) throws IOException {
for (FieldData fieldData : fieldsData) {
fieldData.forEachValueInDoc(doc, aggregator);
}
}
@Override public Facet facet() {
TObjectIntHashMap<String> facets = aggregator.facets();
if (facets.isEmpty()) {
TermsFacetCollector.pushFacets(facets);
return new InternalTermsFacet(facetName, arrayToCommaDelimitedString(fieldsNames), comparatorType, size, ImmutableList.<InternalTermsFacet.Entry>of());
} else {
// we need to fetch facets of "size * numberOfShards" because of problems in how they are distributed across shards
BoundedTreeSet<InternalTermsFacet.Entry> ordered = new BoundedTreeSet<InternalTermsFacet.Entry>(InternalTermsFacet.ComparatorType.COUNT.comparator(), size * numberOfShards);
for (TObjectIntIterator<String> it = facets.iterator(); it.hasNext();) {
it.advance();
ordered.add(new InternalTermsFacet.Entry(it.key(), it.value()));
}
TermsFacetCollector.pushFacets(facets);
return new InternalTermsFacet(facetName, arrayToCommaDelimitedString(fieldsNames), comparatorType, size, ordered);
}
}
public static class AggregatorValueProc extends StaticAggregatorValueProc {
private final ImmutableSet<String> excluded;
private final Matcher matcher;
private final SearchScript script;
private final Map<String, Object> scriptParams;
public AggregatorValueProc(TObjectIntHashMap<String> facets, ImmutableSet<String> excluded, Pattern pattern, SearchScript script) {
super(facets);
this.excluded = excluded;
this.matcher = pattern != null ? pattern.matcher("") : null;
this.script = script;
if (script != null) {
scriptParams = Maps.newHashMapWithExpectedSize(4);
} else {
scriptParams = null;
}
}
@Override public void onValue(int docId, String value) {
if (excluded != null && excluded.contains(value)) {
return;
}
if (matcher != null && !matcher.reset(value).matches()) {
return;
}
if (script != null) {
scriptParams.put("term", value);
Object scriptValue = script.execute(docId, scriptParams);
if (scriptValue == null) {
return;
}
if (scriptValue instanceof Boolean) {
if (!((Boolean) scriptValue)) {
return;
}
} else {
value = scriptValue.toString();
}
}
super.onValue(docId, value);
}
}
public static class StaticAggregatorValueProc implements FieldData.StringValueInDocProc {
private final TObjectIntHashMap<String> facets;
public StaticAggregatorValueProc(TObjectIntHashMap<String> facets) {
this.facets = facets;
}
@Override public void onValue(int docId, String value) {
facets.adjustOrPutValue(value, 1, 1);
}
public final TObjectIntHashMap<String> facets() {
return facets;
}
}
}

19
modules/test/integration/src/test/java/org/elasticsearch/test/integration/search/facets/SimpleFacetsTests.java
View File

@ -368,6 +368,25 @@ public class SimpleFacetsTests extends AbstractNodesTests {
assertThat(facet.entries().get(0).count(), equalTo(2));
assertThat(facet.entries().get(1).term(), equalTo("zzz"));
assertThat(facet.entries().get(1).count(), equalTo(1));
// Fields
searchResponse = client.prepareSearch()
.setQuery(matchAllQuery())
.addFacet(termsFacet("facet1").fields("stag", "tag").size(10))
.execute().actionGet();
facet = searchResponse.facets().facet("facet1");
assertThat(facet.name(), equalTo("facet1"));
assertThat(facet.entries().size(), equalTo(4));
assertThat(facet.entries().get(0).term(), anyOf(equalTo("111"), equalTo("yyy")));
assertThat(facet.entries().get(0).count(), equalTo(2));
assertThat(facet.entries().get(1).term(), anyOf(equalTo("111"), equalTo("yyy")));
assertThat(facet.entries().get(1).count(), equalTo(2));
assertThat(facet.entries().get(2).term(), anyOf(equalTo("zzz"), equalTo("xxx")));
assertThat(facet.entries().get(2).count(), equalTo(1));
assertThat(facet.entries().get(3).term(), anyOf(equalTo("zzz"), equalTo("xxx")));
assertThat(facet.entries().get(3).count(), equalTo(1));
}
@Test public void testTermFacetWithEqualTermDistribution() throws Exception {