/*
* 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.common.xcontent.XContentParser;
import org.elasticsearch.script.SearchScript;
import org.elasticsearch.search.SearchParseElement;
import org.elasticsearch.search.internal.SearchContext;
import java.util.Map;
/**
* <pre>
* "script_fields" : {
* "test1" : {
* "script" : "doc['field_name'].value"
* },
* "test2" : {
* "script" : "..."
* }
* }
* </pre>
*
* @author kimchy (shay.banon)
*/
public class ScriptFieldsParseElement implements SearchParseElement {
@Override public void parse(XContentParser parser, SearchContext context) throws Exception {
XContentParser.Token token;
String currentFieldName = null;
while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
if (token == XContentParser.Token.FIELD_NAME) {
currentFieldName = parser.currentName();
} else if (token == XContentParser.Token.START_OBJECT) {
String fieldName = currentFieldName;
String script = null;
String scriptLang = null;
Map<String, Object> params = null;
boolean ignoreException = false;
while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
if (token == XContentParser.Token.FIELD_NAME) {
currentFieldName = parser.currentName();
} else if (token == XContentParser.Token.START_OBJECT) {
params = parser.map();
} else if (token.isValue()) {
if ("script".equals(currentFieldName)) {
script = parser.text();
} else if ("lang".equals(currentFieldName)) {
scriptLang = parser.text();
} else if ("ignore_failure".equals(currentFieldName)) {
ignoreException = parser.booleanValue();
}
}
}
SearchScript searchScript = context.scriptService().search(context.lookup(), scriptLang, script, params);
context.scriptFields().add(new ScriptFieldsContext.ScriptField(fieldName, searchScript, ignoreException));
}
}
}
}