/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.sling.feature.extension.apiregions.api.config;

import java.io.IOException;

import javax.json.JsonException;
import javax.json.JsonObject;
import javax.json.JsonObjectBuilder;

/**
 * Option for a property value
 */
public class Option extends DescribableEntity {

    /** The value for the option */
    private String value;

    /**
     * Clear the object and reset to defaults
     */
    @Override
    public void clear() {
        super.clear();
        this.setValue(null);
    }

    /**
     * Extract the metadata from the JSON object.
     * This method first calls {@link #clear()}
     * @param jsonObj The JSON Object
     * @throws IOException If JSON parsing fails
     */
    @Override
    public void fromJSONObject(final JsonObject jsonObj) throws IOException {
        super.fromJSONObject(jsonObj);
        try {
          	this.setValue(this.getString(InternalConstants.KEY_VALUE));
        } catch (final JsonException | IllegalArgumentException e) {
            throw new IOException(e);
        }
    }
    
    /**
     * Get the value for the option
  	 * @return the value or {@code null}
     */
    public String getValue() {
        return value;
    }

    /**
     * Set the value for the option
     * @param value the value to set
     */
    public void setValue(final String value) {
        this.value = value;
    }

    /**
     * Convert this object into JSON
     *
     * @return The json object builder
     * @throws IOException If generating the JSON fails
     */
    @Override
    JsonObjectBuilder createJson() throws IOException {
        final JsonObjectBuilder objectBuilder = super.createJson();

        this.setString(objectBuilder, InternalConstants.KEY_VALUE, this.getValue());

        return objectBuilder;
    }
}