Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Open Source License 

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

public class Main {
    public static void setChildText(Element e, String tagname, String newValue) {
        setChildText(e, tagname, newValue, false);
    }

    public static void setChildText(Element e, String tagname, String newValue, boolean cdata) {
        Element child = getChildByTagName(e, tagname);

        if (child == null) {
            Document doc = e.getOwnerDocument();
            child = doc.createElement(tagname);
            e.appendChild(child);
        }

        setElementText(child, newValue, cdata);
    }

    public static Element getChildByTagName(Element e, String tagname) {
        if (e == null) {
            return null;
        }

        NodeList children = e.getElementsByTagName(tagname);

        if ((children == null) || (children.getLength() == 0)) {
            return (null);
        }

        return ((Element) children.item(0));
    }

    public static void setElementText(Element e, String newValue) {
        setElementText(e, newValue, false);
    }

    /**
     * For compatibility reasons the following is required:
     * If the value of a text node is to be changed, but a CDATA section with this name
     * already exists, the CDATA section is removed an a text node is created or changed.
     *
     * If the value of a CDATA section is to be changed, but a text node with this name
     * already exists, the text node is removed an a CDATA section is created or changed.
     *
     */
    public static void setElementText(Element e, String newValue, boolean cdata) {
        if (e == null) {
            return;
        }

        Node node = null;

        NodeList children = e.getChildNodes();

        if (children != null) {
            Node childToRemove = null;
            boolean changed = false;

            int listLength = children.getLength();

            for (int i = 0; i < listLength; i++) {
                node = children.item(i);

                int nodeType = node.getNodeType();

                if (nodeType == Node.TEXT_NODE) {
                    if (cdata) {
                        childToRemove = node;
                    } else {
                        node.setNodeValue(newValue);
                        changed = true;
                    }
                }

                if (nodeType == Node.CDATA_SECTION_NODE) {
                    if (!cdata) {
                        childToRemove = node;
                    } else {
                        node.setNodeValue(newValue);
                        changed = true;
                    }

                }
            }

            if (childToRemove != null) {
                // System.out.println("removing child " + childToRemove.getNodeValue());
                childToRemove.setNodeValue("");
                e.removeChild(childToRemove);
            }

            if (changed) {
                return;
            }
        }

        Document doc = e.getOwnerDocument();

        if (cdata) {
            node = doc.createCDATASection(newValue);
        } else {
            node = doc.createTextNode(newValue);
        }

        e.appendChild(node);
    }
}