io.javarig.generator.ArrayGenerator Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of java-random-generator Show documentation

This project aims to provide a random instances generator for any class in java, it iterates through setters of an empty object and sets the fields values (using Java reflection api) randomly

The newest version!

package io.javarig.generator;

import io.javarig.RandomInstanceGenerator;
import io.javarig.exception.InstanceGenerationException;
import lombok.Getter;
import lombok.Setter;
import org.apache.commons.lang3.ArrayUtils;
import org.apache.commons.lang3.ClassUtils;

import java.lang.reflect.Array;
import java.lang.reflect.Type;
import java.util.List;

@Setter
@Getter
public class ArrayGenerator extends TypeGenerator {

    public ArrayGenerator(Type type, RandomInstanceGenerator randomInstanceGenerator) {
        super(type, randomInstanceGenerator);
    }
    @Override
    public Object generate() throws InstanceGenerationException {
        Class arrayParameterType = ((Class) getType()).componentType();
        if (arrayParameterType.isPrimitive()) {
            return generatePrimitiveArray(arrayParameterType);
        } else {
            return generateArray(arrayParameterType);
        }
    }

    private Object generatePrimitiveArray(Class primitiveType) {
        Class wrapperType = ClassUtils.primitiveToWrapper(primitiveType);
        return ArrayUtils.toPrimitive(generateArray(wrapperType));
    }

    private Object[] generateArray(Class arrayParameterType) {
        List