plugins/baseplugin/src/main/java/org/apache/unomi/plugins/baseplugin/conditions/NotConditionEvaluator.java

/*
 * 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 org.apache.unomi.plugins.baseplugin.conditions;

import org.apache.unomi.api.Item;
import org.apache.unomi.api.conditions.Condition;
import org.apache.unomi.persistence.elasticsearch.conditions.ConditionEvaluator;
import org.apache.unomi.persistence.elasticsearch.conditions.ConditionEvaluatorDispatcher;

import java.util.Map;

/**
 * Evaluator for NOT condition.
 */
public class NotConditionEvaluator implements ConditionEvaluator {

    @Override
    public boolean eval(Condition condition, Item item, Map<String, Object> context, ConditionEvaluatorDispatcher dispatcher) {
        Condition subCondition = (Condition) condition.getParameter("subCondition");
        return !dispatcher.eval(subCondition, item, context);
    }
}