io.github.microcks.util.el.function.RandomIntELFunction Maven / Gradle / Ivy
/*
* 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;
/**
* This is an implementation of ELFunction that generates random integer values. When invoked with no arg a integer
* between Integer.MIN_VALUE and Integer.MAX_VALUE is generated. When invoked with one
* argument, a positive integer bounded by arg value is generated. When invoked with 2 arguments, an integer in
* designated intervfal is generated.
* @author laurent
*/
public class RandomIntELFunction extends AbstractRandomELFunction {
@Override
public String evaluate(EvaluationContext evaluationContext, String... args) {
if (args != null) {
switch (args.length) {
case 1:
int maxValue = Integer.MAX_VALUE;
try {
maxValue = Integer.parseInt(args[0]);
} catch (NumberFormatException nfe) {
// Ignore, we'll stick to integer max value.
}
return String.valueOf(getRandom().nextInt(maxValue));
case 2:
int minValue = 0;
maxValue = Integer.MAX_VALUE;
try {
minValue = Integer.parseInt(args[0]);
maxValue = Integer.parseInt(args[1]);
} catch (NumberFormatException nfe) {
// Ignore, we'll stick to the defaults.
}
return String.valueOf(getRandom().nextInt(maxValue - minValue) + minValue);
default:
return String.valueOf(getRandom().nextInt());
}
}
return String.valueOf(getRandom().nextInt());
}
}