/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.test.rest.yaml.section;
import org.elasticsearch.common.collect.Tuple;
import org.elasticsearch.common.xcontent.XContentParser;
import java.io.IOException;
import java.util.Map;
/**
* Utility methods used for parsing test sections.
*/
class ParserUtils {
private ParserUtils() {
// Do not build.
}
public static String parseField(XContentParser parser) throws IOException {
parser.nextToken();
assert parser.currentToken().isValue();
String field = parser.text();
parser.nextToken();
return field;
}
public static Tuple<String, Object> parseTuple(XContentParser parser) throws IOException {
parser.nextToken();
advanceToFieldName(parser);
Map<String,Object> map = parser.map();
assert parser.currentToken() == XContentParser.Token.END_OBJECT;
parser.nextToken();
if (map.size() != 1) {
throw new IllegalArgumentException("expected key value pair but found an object with " + map.size() + " fields");
}
Map.Entry<String, Object> entry = map.entrySet().iterator().next();
return Tuple.tuple(entry.getKey(), entry.getValue());
}
public static void advanceToFieldName(XContentParser parser) throws IOException {
XContentParser.Token token = parser.currentToken();
//we are in the beginning, haven't called nextToken yet
if (token == null) {
token = parser.nextToken();
}
if (token == XContentParser.Token.START_ARRAY) {
token = parser.nextToken();
}
if (token == XContentParser.Token.START_OBJECT) {
token = parser.nextToken();
}
if (token != XContentParser.Token.FIELD_NAME) {
throw new IllegalArgumentException("malformed test section: field name expected but found " + token + " at "
+ parser.getTokenLocation());
}
}
}