/**
    * Copyright 2004-2013 The Kuali Foundation
    *
    * Licensed 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://www.opensource.org/licenses/ecl2.php
    *
   * 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.kuali.common.aws.s3;
  
  import org.apache.commons.lang.StringUtils;
  import org.kuali.common.aws.s3.monitor.BaseCase;
  
  public class ExternalOnlyBaseCase implements BaseCase {
  
  	String delimiter;
  	String token;
  
  	public boolean isBaseCase(String prefix) {
  		boolean test1 = endsWithVersionNumber(prefix, delimiter);
  		boolean test2 = endsWithToken(prefix, delimiter, token);
  		boolean test3 = !prefix.startsWith("external/");
  		return test1 || test2 || test3;
  	}
  
  	public boolean endsWithVersionNumber(String prefix, String delimiter) {
  		String[] tokens = prefix.split(delimiter);
  		String lastToken = tokens[tokens.length - 1];
  		String firstChar = lastToken.substring(0, 1);
  		return StringUtils.isNumeric(firstChar);
  	}
  
  	public boolean endsWithToken(String prefix, String delimiter, String token) {
  		return prefix.endsWith(delimiter + token + delimiter);
  	}
  
  	public String getDelimiter() {
  		return delimiter;
  	}
  
  	public void setDelimiter(String delimiter) {
  		this.delimiter = delimiter;
  	}
  
  	public String getToken() {
  		return token;
  	}
  
  	public void setToken(String token) {
  		this.token = token;
  	}
  
  }