/** 
 * ============LICENSE_START=======================================================
 * org.onap.aai
 * ================================================================================
 * Copyright © 2017-18 AT&T Intellectual Property. All rights reserved.
 * ================================================================================
 * 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.
 * ============LICENSE_END=========================================================
 */

package org.onap.aai.edges.enums;

public enum DirectionNotation {
    DIRECTION("${direction}"), OPPOSITE("!${direction}");

    private final String val;

    DirectionNotation(String dir) {
        this.val = dir;
    }

    public static DirectionNotation getValue(String val) {
        if (DIRECTION.toString().equals(val)) {
            return DIRECTION;
        } else if (OPPOSITE.toString().equals(val)) {
            return OPPOSITE;
        } else {
            throw new IllegalArgumentException();
        }
    }

    @Override
    public String toString() {
        return this.val;
    }
}