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/*
 *
 * Copyright (c) 2013 - 2018 Lijun Liao
 *
 * 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 org.xipki.ocsp.qa;

import org.xipki.util.ParamUtil;

/**
 * TODO.
 * @author Lijun Liao
 * @since 2.0.0
 */

public enum Occurrence {

  required,
  optional,
  forbidden;

  public static Occurrence forName(String name) {
    ParamUtil.requireNonNull("name", name);
    for (Occurrence entry : values()) {
      if (entry.name().equals(name)) {
        return entry;
      }
    }

    throw new IllegalArgumentException("invalid Occurrence " + name);
  }

}