com.uber.rave.DoubleCreator Maven / Gradle / Ivy

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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

package com.uber.rave;

/**
 * This class is creates valid and invalid permutations of a double argument based on the annotation
 * restrictions.
 */
public class DoubleCreator extends ObjectCreator {


    public DoubleCreator(long... validValues) {
        this(new AnnotationSpecs.Builder().setIntDef(validValues).build());
    }

    public DoubleCreator(AnnotationSpecs spec) {
        createValues(spec);
    }

    private void createValues(AnnotationSpecs spec) {
        addValidType(spec.getRangeFloatFrom());
        addValidType(spec.getRangeFloatTo());
        addValidType((spec.getRangeFloatTo() - spec.getRangeFloatFrom()) / 2 + spec.getRangeFloatFrom());
        boolean hasInvalid = false;
        if (spec.getRangeFloatTo() < Double.MAX_VALUE) {
            hasInvalid = true;
            addInvalidType(spec.getRangeFloatTo() + 1);
        }
        if (spec.getRangeFloatFrom() > Double.MIN_VALUE) {
            hasInvalid = true;
            addInvalidType(spec.getRangeFloatFrom() - 1);
        }
        if (!hasInvalid) {
            throw new IllegalArgumentException("No possible invalid values.");
        }
    }
}