/*
    * Copyright 2000-2001,2004 The Apache Software Foundation.
    * 
    * 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.apache.jetspeed.om.registry.base;
  
  // Java imports
  import java.util.Vector;
  import java.util.Iterator;
  
  // Jetspeed imports
  import org.apache.jetspeed.om.registry.SecurityAccess;
  import org.apache.jetspeed.om.registry.SecurityAllow;
  
  /***
   * Interface for manipulatin the Security Access on the registry entries
   *
   * @author <a href="mailto:paulsp@apache.org">Paul Spencer</a>
   * @version $Id: BaseSecurityAccess.java,v 1.11 2004/02/23 03:08:26 jford Exp $
   */
  public class BaseSecurityAccess implements SecurityAccess, java.io.Serializable
  {
  
      /*** Holds value of property action. */
      private String action;
  
      /*** Holds value of property allows. */
      private Vector allows = new Vector();
  
      /*** Holds value of property ownerAllows. */
      private Vector ownerAllows = new Vector();
  
      /*** Holds the combination of allows and ownerAllows. */
      private transient Vector allAllows = new Vector();
  
      /*** Creates new BaseSecurityAccess */
      public BaseSecurityAccess()
      {
      }
  
      /***
       * Implements the equals operation so that 2 elements are equal if
       * all their member values are equal.
       */
      public boolean equals(Object object)
      {
          if (object == null || !(object instanceof SecurityAccess))
          {
              return false;
          }
  
          SecurityAccess obj = (SecurityAccess) object;
  
          if (action != null)
          {
              if (!action.equals(obj.getAction()))
              {
                  return false;
              }
          }
          else
          {
              if (obj.getAction() != null)
              {
                  return false;
              }
          }
  
          Iterator i = allows.iterator();
          Iterator i2 = obj.getAllows().iterator();
          while (i.hasNext())
          {
              SecurityAllow c1 = (SecurityAllow) i.next();
              SecurityAllow c2 = null;
  
              if (i2.hasNext())
              {
                  c2 = (SecurityAllow) i2.next();
              }
              else
              {
                  return false;
              }
  
              if (!c1.equals(c2))
              {
                  return false;
             }
         }
 
         if (i2.hasNext())
         {
             return false;
         }
 
         i = ownerAllows.iterator();
         i2 = obj.getOwnerAllows().iterator();
         while (i.hasNext())
         {
             BaseSecurityAllowOwner c1 = (BaseSecurityAllowOwner) i.next();
             BaseSecurityAllowOwner c2 = null;
 
             if (i2.hasNext())
             {
                 c2 = (BaseSecurityAllowOwner) i2.next();
             }
             else
             {
                 return false;
             }
 
             if (!c1.equals(c2))
             {
                 return false;
             }
         }
 
         if (i2.hasNext())
         {
             return false;
         }
 
         return true;
     }
 
     /*** Getter for property action.
      * @return Value of property action.
      */
     public String getAction()
     {
         return action;
     }
 
     /*** Setter for property action.
      * @param action New value of property action.
      */
     public void setAction(String action)
     {
         this.action = action;
     }
 
     /*** Getter for property allows.
      * @return Value of property allows.
      */
     public Vector getAllows()
     {
         if (allows == null)
         {
             allows = new Vector();
         }
         return allows;
     }
 
     /*** Setter for property allows.
      * @param allows New value of property allows.
      */
     public void setAllows(Vector allows)
     {
         this.allows = allows;
         if (this.allAllows != null)
         {
             allAllows.removeAllElements();
         }
     }
 
     /*** Getter for property ownerAllows.
      * @return Value of property ownerAllows.
      */
     public Vector getOwnerAllows()
     {
         if (ownerAllows == null)
         {
             ownerAllows = new Vector();
         }
         return this.ownerAllows;
     }
 
     /*** Setter for property ownerAllows.
      * @param ownerAllows New value of property ownerAllows.
      */
     public void setOwnerAllows(Vector ownerAllows)
     {
         this.ownerAllows = ownerAllows;
         if (this.allAllows != null)
         {
             allAllows.removeAllElements();
         }
     }
 
     /***
      * Return a vector contain all allows elements.  If the vector is null
      * or empty, then create and populate it with elements from the allows
      * and ownerAllows vectors.
      *
      * @return vector containing all allows
      */
     public Vector getAllAllows()
     {
         int elementCount = 0;
         if (this.allAllows == null)
         {
             allAllows = new Vector();
         }
 
         if (allAllows.isEmpty() == true)
         {
             if (this.allows != null)
             {
                 elementCount += this.allows.size();
                 allAllows.ensureCapacity(elementCount);
                 allAllows.addAll(this.allows);
             }
 
             if (this.ownerAllows != null)
             {
                 elementCount += this.ownerAllows.size();
                 allAllows.ensureCapacity(elementCount);
                 allAllows.addAll(this.ownerAllows);
             }
         }
         return this.allAllows;
     }
 }