Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * JBoss, Home of Professional Open Source
 * Copyright 2005, JBoss Inc., and individual contributors as indicated
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

import java.util.ArrayList;
import java.util.List;
import java.util.Set;

import org.w3c.dom.Element;

import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

public class Main {
    public static Element element(final Element element, final String tagName) {
        Element childElement = null;
        if (element != null) {
            final NodeList nodeList = element.getChildNodes();
            for (int i = 0; i < nodeList.getLength() && childElement == null; i++) {
                final Node child = nodeList.item(i);
                if (Element.class.isAssignableFrom(child.getClass())
                        && getTagLocalName((Element) child).equals(tagName)) {
                    childElement = (Element) child;
                }
            }
        }
        return childElement;
    }

    public static Element element(final Element element) {
        Element onlyChild = null;
        if (element != null) {
            final List<Element> elements = elements(element);
            if (elements != null) {
                onlyChild = elements.get(0);
            }
        }
        return onlyChild;
    }

    public static String getTagLocalName(final Element element) {
        if (element == null) {
            return null;
        }
        final String localName = element.getLocalName();
        if (localName != null) {
            return localName;
        }
        return element.getTagName();
    }

    public static List<Element> elements(final Element element, final String tagName) {
        List<Element> elements = null;
        final NodeList nodeList = element.getChildNodes();
        if (nodeList != null) {
            for (int i = 0; i < nodeList.getLength(); i++) {
                final Node child = nodeList.item(i);
                if (Element.class.isAssignableFrom(child.getClass())) {
                    final Element childElement = (Element) child;
                    final String childTagName = getTagLocalName(childElement);
                    if (childTagName.equals(tagName)) {
                        if (elements == null) {
                            elements = new ArrayList<Element>();
                        }
                        elements.add(childElement);
                    }
                }
            }
        }
        return elements;
    }

    public static List<Element> elements(final Element element, final Set<String> allowedTagNames) {
        List<Element> elements = null;
        final NodeList nodeList = element.getChildNodes();
        if (nodeList != null) {
            for (int i = 0; i < nodeList.getLength(); i++) {
                final Node child = nodeList.item(i);
                if (Element.class.isAssignableFrom(child.getClass())) {
                    final Element childElement = (Element) child;
                    final String childTagName = getTagLocalName(childElement);
                    if (allowedTagNames.contains(childTagName)) {
                        if (elements == null) {
                            elements = new ArrayList<Element>();
                        }
                        elements.add(childElement);
                    }
                }
            }
        }
        return elements;
    }

    public static List<Element> elements(final Element element) {
        List<Element> elements = null;
        if (element != null) {
            final NodeList nodeList = element.getChildNodes();
            if (nodeList != null && nodeList.getLength() > 0) {
                elements = new ArrayList<Element>();
                for (int i = 0; i < nodeList.getLength(); i++) {
                    final Node node = nodeList.item(i);
                    if (node instanceof Element) {
                        elements.add((Element) node);
                    }
                }
            }
        }
        return elements;
    }

    public static List<Element> elements(final Element father, final String ns, final String localName) {
        final List<Element> matchingElements = new ArrayList<Element>();
        final NodeList nl = father.getChildNodes();
        for (int i = 0; i < nl.getLength(); i++) {
            final Node n = nl.item(i);
            if (n instanceof Element && n.getLocalName() != null && n.getLocalName().equals(localName)
                    && n.getNamespaceURI() != null && n.getNamespaceURI().equals(ns)) {
                matchingElements.add((Element) n);
            }
        }
        return matchingElements;
    }

    public static String getNamespaceURI(final org.w3c.dom.Node n, final String prefix) {
        final Node prefixDeclaration = n.getAttributes().getNamedItem("xmlns:" + prefix);
        if (prefixDeclaration != null) {
            // we have found the good NameSpace
            return prefixDeclaration.getNodeValue();
        }
        // we have found the good NameSpace
        // we look for the NameSpace in the parent Node
        return getNamespaceURI(n.getParentNode(), prefix);
    }
}