/**

  * Copyright 2010 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.core.assembly.data;

 import java.util.ArrayList;

 import java.util.Collection;

 import org.kuali.student.core.assembly.data.Data.Key;

 /**

  * QueryPath is used for retrieving and storing data in the DataModel.  A path is can be represented with

  * a "/" separated string.

  * 

  * @author Kuali Student Team

  *

  */

 public class QueryPath extends ArrayList<Key> {

         //private static final PathParser parser = GWT.create(PathParser.class);

         private static final PathParser parser = new DefaultPathParser();

         private static final long serialVersionUID = 1L;

         public static String getWildCard() {

                 return parser.getWildCard();

         }

         public static String getPathSeparator(){

             return parser.getPathSeparator();

         }

         public static QueryPath parse(final String path) {

                 return parser.parse(path);

         }

         private String stringPath = null;

         /* (non-Javadoc)

          * @see java.util.ArrayList#add(int, java.lang.Object)

          */

         @Override

         public void add(final int index, final Key element) {

                 stringPath = null;

                 super.add(index, element);

         }

         /* (non-Javadoc)

          * @see java.util.ArrayList#add(java.lang.Object)

          */

         @Override

         public boolean add(final Key e) {

                 stringPath = null;

                 return super.add(e);

         }

         /* (non-Javadoc)

          * @see java.util.ArrayList#addAll(java.util.Collection)

          */

         @Override

         public boolean addAll(final Collection<? extends Key> c) {

                 stringPath = null;

                 return super.addAll(c);

         }

         /* (non-Javadoc)

          * @see java.util.ArrayList#addAll(int, java.util.Collection)

          */

         @Override

         public boolean addAll(final int index, final Collection<? extends Key> c) {

                 stringPath = null;

                 return super.addAll(index, c);

         }

         /* (non-Javadoc)

          * @see java.util.ArrayList#clear()

          */

         @Override

         public void clear() {

                 stringPath = null;

                 super.clear();

         }

         /* (non-Javadoc)

          * @see java.util.ArrayList#remove(int)

          */

         @Override

         public Key remove(final int index) {

                 stringPath = null;

                 return super.remove(index);

         }

         /* (non-Javadoc)

          * @see java.util.ArrayList#remove(java.lang.Object)

          */

         @Override

         public boolean remove(final Object o) {

                 stringPath = null;

                 return super.remove(o);

         }

         /* (non-Javadoc)

          * @see java.util.AbstractCollection#removeAll(java.util.Collection)

          */

         @Override

         public boolean removeAll(final Collection<?> c) {

                 stringPath = null;

                 return super.removeAll(c);

         }

         /* (non-Javadoc)

          * @see java.util.ArrayList#removeRange(int, int)

          */

         @Override

         protected void removeRange(final int fromIndex, final int toIndex) {

                 stringPath = null;

                 super.removeRange(fromIndex, toIndex);

         }

         /* (non-Javadoc)

          * @see java.util.AbstractCollection#retainAll(java.util.Collection)

          */

         @Override

         public boolean retainAll(final Collection<?> c) {

                 stringPath = null;

                 return super.retainAll(c);

         }

         /* (non-Javadoc)

          * @see java.util.ArrayList#set(int, java.lang.Object)

          */

         @Override

         public Key set(final int index, final Key element) {

                 stringPath = null;

                 return super.set(index, element);

         }

         public QueryPath subPath(final int fromIndex, final int toIndex) {

                 // TODO revamp this method to use subList once GWT issue 1791 is fixed

                 final QueryPath result = new QueryPath();

                 for (int i = fromIndex; i < toIndex; i++) {

                         result.add(this.get(i));

                 }

                 return result;

         }

         @Override

         public String toString() {

                 if (stringPath == null) {

                         stringPath = parser.format(this);

                 }

                 return stringPath;

         }

         public static QueryPath concat(String... paths) {

                 QueryPath result = new QueryPath();

                 for (String path : paths) {

                         if (path != null) {

                                 result.addAll(QueryPath.parse(path));

                         }

                 }

                 return result;

         }

 }