/*
 * The MIT License
 *
 * Copyright 2015 CloudBees, 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 jenkins.model;

import hudson.model.Job;
import hudson.model.JobProperty;
import hudson.model.JobPropertyDescriptor;
import net.sf.json.JSONObject;
import org.kohsuke.stapler.StaplerRequest;

/**
 * Job property which may or may not be present.
 * Must define {@code config-details.jelly} or {@code config-details.groovy}.
 * May define {@code help.html}.
 * @since 1.637
 */
public abstract class OptionalJobProperty<J extends Job<?,?>> extends JobProperty<J> {

    @Override
    public OptionalJobPropertyDescriptor getDescriptor() {
        return (OptionalJobPropertyDescriptor) super.getDescriptor();
    }

    public static abstract class OptionalJobPropertyDescriptor extends JobPropertyDescriptor {

        protected OptionalJobPropertyDescriptor(Class<? extends JobProperty<?>> clazz) {
            super(clazz);
        }

        protected OptionalJobPropertyDescriptor() {}

        @Override
        public JobProperty<?> newInstance(StaplerRequest req, JSONObject formData) throws FormException {
            return formData.optBoolean("specified") ? super.newInstance(req, formData) : null;
        }

    }

}