Main.java Source code

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Here is the source code for Main.java

Source

//package com.java2s;
/**
 * 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
     */
    static public 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();
            }
        }
    }

    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);
        }
    }
}