/*

  * Copyright 2009 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.osedu.org/licenses/ECL-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.kuali.student.contract.model.util;

 /**

  * Matches patterns that define groups of types or groups of states

  * Currently supports comma separated lists and wildcard * at the end

  * @author nwright

  */

 public class GroupTypeStatePatternMatcher

 {

  private String pattern;

  public GroupTypeStatePatternMatcher (String pattern)

  {

   this.pattern = pattern;

  }

  public boolean matches (String key)

  {

   if (pattern.equals ("*"))

   {

    return true;

   }

   // check for wildcard * at the end

   if (pattern.endsWith ("*"))

   {

    if (key.toLowerCase ().startsWith (pattern.substring (0, pattern.length ()

     - 1).toLowerCase ()))

    {

     return true;

    }

   }

   // Check if key is in a comma separated list of keys

   // changed it so the list could contain a wildard as one of it's elements

   // for example kuali.type.foo.*,kuali.type.bar.joe

   if (pattern.indexOf (",") != -1)

   {

    String[] patterns = pattern.split (",");

    for (String pat : patterns)

    {

     GroupTypeStatePatternMatcher matcher =

      new GroupTypeStatePatternMatcher (pat);

     if (matcher.matches (key))

     {

      return true;

     }

    }

   }

   //ok the pattern is the key so just compare

   if (pattern.equalsIgnoreCase (key))

   {

    return true;

   }

   return false;

  }

 }