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/*
 * Copyright The Microcks Authors.
 *
 * Licensed 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.github.microcks.util.el.function;

import io.github.microcks.util.el.EvaluationContext;

import java.util.Random;

/**
 * Implementation of ELFunction that pick a value among random ones.
 * @author laurent
 */
public class RandomValueELFunction extends AbstractRandomELFunction {

   @Override
   public String evaluate(EvaluationContext evaluationContext, String... args) {
      if (args == null || args.length == 0) {
         return "";
      }
      return args[getRandom().nextInt(args.length)];
   }
}