UUIDIdBuilderImpl.java

/**
 * Licensed to The Apereo Foundation under one or more contributor license
 * agreements. See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership.
 *
 *
 * The Apereo Foundation licenses this file to you under the Educational
 * Community 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://opensource.org/licenses/ecl2.txt
 *
 * 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.opencastproject.mediapackage.identifier;

import java.util.UUID;

/**
 * Default implementation of an id builder. This implementation yields for a distributed id generator that will create
 * unique ids for the system.
 */
public class UUIDIdBuilderImpl implements IdBuilder {

  /**
   * Creates a new id builder.
   */
  public UUIDIdBuilderImpl() {
  }

  /**
   * @see org.opencastproject.mediapackage.identifier.IdBuilder#createNew()
   */
  public Id createNew() {
    return new IdImpl(UUID.randomUUID().toString());
  }

  /**
   * @see org.opencastproject.mediapackage.identifier.IdBuilder#fromString(String)
   */
  public Id fromString(String id) throws IllegalArgumentException {
    if (id == null)
      throw new IllegalArgumentException("Argument 'id' is null");
    try {
      UUID.fromString(id);
    } catch (IllegalArgumentException e) {
      throw e;
    }
    return new IdImpl(id);
  }

}