/*
* 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.fetch.script;
import org.elasticsearch.ElasticSearchException;
import org.elasticsearch.common.collect.ImmutableMap;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.search.SearchHitField;
import org.elasticsearch.search.SearchParseElement;
import org.elasticsearch.search.fetch.SearchHitPhase;
import org.elasticsearch.search.internal.InternalSearchHitField;
import org.elasticsearch.search.internal.SearchContext;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
/**
* @author kimchy (shay.banon)
*/
public class ScriptFieldsSearchHitPhase implements SearchHitPhase {
@Inject public ScriptFieldsSearchHitPhase() {
}
@Override public Map<String, ? extends SearchParseElement> parseElements() {
ImmutableMap.Builder<String, SearchParseElement> parseElements = ImmutableMap.builder();
parseElements.put("script_fields", new ScriptFieldsParseElement())
.put("scriptFields", new ScriptFieldsParseElement());
return parseElements.build();
}
@Override public boolean executionNeeded(SearchContext context) {
return context.hasScriptFields();
}
@Override public void execute(SearchContext context, HitContext hitContext) throws ElasticSearchException {
for (ScriptFieldsContext.ScriptField scriptField : context.scriptFields().fields()) {
scriptField.script().setNextReader(hitContext.reader());
scriptField.script().setNextDocId(hitContext.docId());
Object value;
try {
value = scriptField.script().run();
value = scriptField.script().unwrap(value);
} catch (RuntimeException e) {
if (scriptField.ignoreException()) {
continue;
}
throw e;
}
if (hitContext.hit().fieldsOrNull() == null) {
hitContext.hit().fields(new HashMap<String, SearchHitField>(2));
}
SearchHitField hitField = hitContext.hit().fields().get(scriptField.name());
if (hitField == null) {
hitField = new InternalSearchHitField(scriptField.name(), new ArrayList<Object>(2));
hitContext.hit().fields().put(scriptField.name(), hitField);
}
hitField.values().add(value);
}
}
}