io.honnix.rkt.launcher.options.Options Maven / Gradle / Ivy

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/*-
 * -\-\-
 * rkt-launcher
 * --
 * 
 * --
 * 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.
 * -/-/-
 */
package io.honnix.rkt.launcher.options;

import com.google.common.base.Joiner;
import java.util.List;

public interface Options {

  default List asList() {
    throw new UnsupportedOperationException();
  }

  Options NULL = new NullOptions();

  default String join(final String key, final Object value) {
    return Joiner.on("=").join(key, value);
  }
}