Main.java Source code

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//package com.java2s;
/* ************************************************************************** *
 * See the NOTICE file distributed with this work for additional information
 * regarding copyright ownership.
 *
 * This file is licensed 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 javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;

import org.w3c.dom.Document;

import org.w3c.dom.Node;

public class Main {
    /**
     * @param target
     * @param node
     * @return
     * @throws Exception
     */
    public static Document copyDocument(Document document) throws Exception {
        Node n = document.getDocumentElement().cloneNode(true);
        Document result = newDocument();
        result.adoptNode(n);
        result.appendChild(n);
        return result;
    }

    /**
     * Creates and returns a new empty DOM document.
     * 
     * @return a newly created DOM document
     * @throws ParserConfigurationException
     */
    public static Document newDocument() throws Exception {
        DocumentBuilder builder = getDocumentBuilder(true);
        return builder.newDocument();
    }

    /**
     * Creates and returns an new document builder factory. This method tries to
     * configure the namespace support for the builder. If the underlying parser
     * does not support namespaces then this method returns a simple
     * DocumentBuilder object.
     * 
     * @return a new document builder
     * @throws ParserConfigurationException
     */
    private static DocumentBuilder getDocumentBuilder(boolean isNamespaceAware)
            throws ParserConfigurationException {
        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        factory.setNamespaceAware(isNamespaceAware); // never forget this!
        try {
            factory.setFeature("http://xml.org/sax/features/namespaces", isNamespaceAware);
        } catch (Throwable t) {
            // Just skip it...
        }
        DocumentBuilder builder = factory.newDocumentBuilder();
        return builder;
    }
}