Android XML Node Child Get getSet(Node rootNode, Set result, Node exclude, boolean com)

Description

get Set

License

Apache License

Parameter

Parameter	Description
rootNode	a parameter
result	a parameter
exclude	a parameter
com	whether comments or not

Declaration

public static void getSet(Node rootNode, Set<Node> result,
        Node exclude, boolean com) 

Method Source Code

//package com.java2s;
/**//from w ww  .  j a v a  2 s  .c o  m
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you 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.
 */

import java.util.Set;
import org.w3c.dom.Attr;

import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;

public class Main {
    /**
     * @param rootNode
     * @param result
     * @param exclude
     * @param com whether comments or not
     */
    public static void getSet(Node rootNode, Set<Node> result,
            Node exclude, boolean com) {
        if ((exclude != null) && isDescendantOrSelf(exclude, rootNode)) {
            return;
        }
        getSetRec(rootNode, result, exclude, com);
    }

    /**
     * Returns true if the descendantOrSelf is on the descendant-or-self axis
     * of the context node.
     *
     * @param ctx
     * @param descendantOrSelf
     * @return true if the node is descendant
     */
    public static boolean isDescendantOrSelf(Node ctx, Node descendantOrSelf) {
        if (ctx == descendantOrSelf) {
            return true;
        }

        Node parent = descendantOrSelf;

        while (true) {
            if (parent == null) {
                return false;
            }

            if (parent == ctx) {
                return true;
            }

            if (parent.getNodeType() == Node.ATTRIBUTE_NODE) {
                parent = ((Attr) parent).getOwnerElement();
            } else {
                parent = parent.getParentNode();
            }
        }
    }

    @SuppressWarnings("fallthrough")
    private static void getSetRec(final Node rootNode,
            final Set<Node> result, final Node exclude, final boolean com) {
        if (rootNode == exclude) {
            return;
        }
        switch (rootNode.getNodeType()) {
        case Node.ELEMENT_NODE:
            result.add(rootNode);
            Element el = (Element) rootNode;
            if (el.hasAttributes()) {
                NamedNodeMap nl = el.getAttributes();
                for (int i = 0; i < nl.getLength(); i++) {
                    result.add(nl.item(i));
                }
            }
            //no return keep working
        case Node.DOCUMENT_NODE:
            for (Node r = rootNode.getFirstChild(); r != null; r = r
                    .getNextSibling()) {
                if (r.getNodeType() == Node.TEXT_NODE) {
                    result.add(r);
                    while ((r != null)
                            && (r.getNodeType() == Node.TEXT_NODE)) {
                        r = r.getNextSibling();
                    }
                    if (r == null) {
                        return;
                    }
                }
                getSetRec(r, result, exclude, com);
            }
            return;
        case Node.COMMENT_NODE:
            if (com) {
                result.add(rootNode);
            }
            return;
        case Node.DOCUMENT_TYPE_NODE:
            return;
        default:
            result.add(rootNode);
        }
    }
}

Related

1. childrenOfType(Node x, String s)
2. firstChildOfType(Node x, String s)
3. getMatchingChildNodes(Node node, String nodeName, String attributeName, List attributeValues)
4. firstDescendantOfType(Node x, String s)
5. firstValueOfType(Node x, String s)
6. getSetRec(final Node rootNode, final Set result, final Node exclude, final boolean com)