1 /*
   2  * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
   3  */
   4 /*
   5  * Licensed to the Apache Software Foundation (ASF) under one or more
   6  * contributor license agreements.  See the NOTICE file distributed with
   7  * this work for additional information regarding copyright ownership.
   8  * The ASF licenses this file to You under the Apache License, Version 2.0
   9  * (the "License"); you may not use this file except in compliance with
  10  * the License.  You may obtain a copy of the License at
  11  *
  12  *      http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * Unless required by applicable law or agreed to in writing, software
  15  * distributed under the License is distributed on an "AS IS" BASIS,
  16  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  17  * See the License for the specific language governing permissions and
  18  * limitations under the License.
  19  */
  20 
  21 package com.sun.org.apache.xerces.internal.dom;
  22 
  23 import java.util.ArrayList;
  24 import java.util.List;
  25 import org.w3c.dom.DOMStringList;
  26 
  27 /**
  28  * DOM Level 3
  29  *
  30  * This class implements the DOM Level 3 Core interface DOMStringList.
  31  *
  32  * @xerces.internal
  33  *
  34  * @author Neil Delima, IBM
  35  * @LastModified: Nov 2017
  36  */
  37 public class DOMStringListImpl implements DOMStringList {
  38 
  39     // A collection of DOMString values
  40     private final List<String> fStrings;
  41 
  42     /**
  43      * Construct an empty list of DOMStringListImpl
  44      */
  45     public DOMStringListImpl() {
  46         fStrings = new ArrayList<>();
  47     }
  48 
  49     /**
  50      * Construct a DOMStringListImpl from an ArrayList
  51      */
  52     public DOMStringListImpl(List<String> params) {
  53         fStrings = params;
  54     }
  55 
  56     /**
  57      * @see org.w3c.dom.DOMStringList#item(int)
  58      */
  59     public String item(int index) {
  60         final int length = getLength();
  61         if (index >= 0 && index < length) {
  62             return fStrings.get(index);
  63         }
  64         return null;
  65     }
  66 
  67     /**
  68      * @see org.w3c.dom.DOMStringList#getLength()
  69      */
  70     public int getLength() {
  71             return fStrings.size();
  72     }
  73 
  74     /**
  75      * @see org.w3c.dom.DOMStringList#contains(String)
  76      */
  77     public boolean contains(String param) {
  78         return fStrings.contains(param);
  79     }
  80 
  81     /**
  82      * DOM Internal:
  83      * Add a <code>DOMString</code> to the list.
  84      *
  85      * @param domString A string to add to the list
  86      */
  87     public void add(String param) {
  88         fStrings.add(param);
  89     }
  90 
  91 }