corpus-server/src/main/java/org/apache/opennlp/corpus_server/taskqueue/MemoryTaskQueue.java

/*
 * 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.opennlp.corpus_server.taskqueue;

import java.util.Collection;
import java.util.Iterator;

class MemoryTaskQueue implements TaskQueue {

  private Iterator<String> casIdQueueIterator;
  
  MemoryTaskQueue(Collection<String> casIdQueue) {
    casIdQueueIterator = casIdQueue.iterator();   
  }
  
  @Override
  public String nextTask() {
    if (casIdQueueIterator.hasNext())
      return casIdQueueIterator.next();
    else
      return null;
  }
}