/*
* Licensed to CRATE Technology GmbH ("Crate") under one or more contributor
* license agreements. See the NOTICE file distributed with this work for
* additional information regarding copyright ownership. Crate 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.
*
* However, if you have executed another commercial license agreement
* with Crate these terms will supersede the license and you may use the
* software solely pursuant to the terms of the relevant commercial agreement.
*/
package io.crate.action.sql.parser;
import org.elasticsearch.common.xcontent.XContentParser;
/**
* used to parse the "stmt" element that is expected to be in requests
* parsed by the io.crate.action.sql.parser.SQLXContentSourceParser
* <p>
* Fills the stmt in the io.crate.action.sql.parser.SQLXContentSourceContext.
* </p>
*/
class SQLStmtParseElement implements SQLParseElement {
@Override
public void parse(XContentParser parser, SQLXContentSourceContext context) throws Exception {
XContentParser.Token token = parser.currentToken();
if (!token.isValue()) {
throw new SQLParseSourceException("Field [" + parser.currentName() + "] has an invalid value");
}
String stmt = parser.text();
if (stmt == null || stmt.length() == 0) {
throw new SQLParseSourceException("Field [" + parser.currentName() + "] has no value");
}
context.stmt(parser.text());
}
}