/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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 io.covert.dns.extract;
import java.util.Map;
import org.apache.commons.jexl2.Expression;
import org.apache.commons.jexl2.JexlEngine;
import org.apache.commons.jexl2.MapContext;
public class Extractor {
final JexlEngine engine;
final Expression expr;
public Extractor(String jexlExpression)
{
engine = new JexlEngine();
engine.setSilent(true);
expr = engine.createExpression(jexlExpression);
}
public Object extract(Map<String, Object> record)
{
return expr.evaluate(new MapContext(record));
}
}