jdk8-mips64-public/jaxws: src/share/jaxws_classes/com/sun/xml/internal/messaging/saaj/util/NamespaceContextIterator.java@9c07ef4934dd

     1 /*

     2  * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    26 /**

    27 *

    28 * @author SAAJ RI Development Team

    29 */

    30 package com.sun.xml.internal.messaging.saaj.util;

    32 import java.util.Iterator;

    33 import java.util.NoSuchElementException;

    35 import org.w3c.dom.*;

    37 public class NamespaceContextIterator implements Iterator {

    38     Node context;

    39     NamedNodeMap attributes = null;

    40     int attributesLength;

    41     int attributeIndex;

    42     Attr next = null;

    43     Attr last = null;

    44     boolean traverseStack = true;

    46     public NamespaceContextIterator(Node context) {

    47         this.context = context;

    48         findContextAttributes();

    49     }

    51     public NamespaceContextIterator(Node context, boolean traverseStack) {

    52         this(context);

    53         this.traverseStack = traverseStack;

    54     }

    56     protected void findContextAttributes() {

    57         while (context != null) {

    58             int type = context.getNodeType();

    59             if (type == Node.ELEMENT_NODE) {

    60                 attributes = context.getAttributes();

    61                 attributesLength = attributes.getLength();

    62                 attributeIndex = 0;

    63                 return;

    64             } else {

    65                 context = null;

    66             }

    67         }

    68     }

    70     protected void findNext() {

    71         while (next == null && context != null) {

    72             for (; attributeIndex < attributesLength; ++attributeIndex) {

    73                 Node currentAttribute = attributes.item(attributeIndex);

    74                 String attributeName = currentAttribute.getNodeName();

    75                 if (attributeName.startsWith("xmlns")

    76                     && (attributeName.length() == 5

    77                         || attributeName.charAt(5) == ':')) {

    78                     next = (Attr) currentAttribute;

    79                     ++attributeIndex;

    80                     return;

    81                 }

    82             }

    83             if (traverseStack) {

    84                 context = context.getParentNode();

    85                 findContextAttributes();

    86             } else {

    87                 context = null;

    88             }

    89         }

    90     }

    92     public boolean hasNext() {

    93         findNext();

    94         return next != null;

    95     }

    97     public Object next() {

    98         return getNext();

    99     }

   101     public Attr nextNamespaceAttr() {

   102         return getNext();

   103     }

   105     protected Attr getNext() {

   106         findNext();

   107         if (next == null) {

   108             throw new NoSuchElementException();

   109         }

   110         last = next;

   111         next = null;

   112         return last;

   113     }

   115     public void remove() {

   116         if (last == null) {

   117             throw new IllegalStateException();

   118         }

   119         ((Element) context).removeAttributeNode(last);

   120     }

   122 }

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