/home/ythoma/docs/math2mat/svn/wp1/framework/m2mGUI/src/m2m/backend/utils/XMLUtils.java

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package m2m.backend.utils;

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

public class XMLUtils {
        static public String getTextValue(Element ele, String tagName,String defaultValue) {
                String textVal = defaultValue;
                NodeList nl = ele.getElementsByTagName(tagName);
                if(nl != null && nl.getLength() > 0) {
                        Element el = (Element)nl.item(0);
                        if (el!=null)
                                if (el.getFirstChild()!=null)
                                        textVal = el.getFirstChild().getNodeValue();
                }

                return textVal;
        }

        
        static public boolean getBoolValue(Element ele, String tagName,boolean defaultValue) {
                String textVal = "";
                NodeList nl = ele.getElementsByTagName(tagName);
                if(nl != null && nl.getLength() > 0) {
                        Element el = (Element)nl.item(0);
                        if (el!=null)
                                if (el.getFirstChild()!=null) {
                                        textVal = el.getFirstChild().getNodeValue();

                                        if (textVal.equalsIgnoreCase("true"))
                                                return true;
                                        else
                                                return false;
                                }
                }
                return defaultValue;
        }


        static public int getIntValue(Element ele, String tagName,int defaultValue) {
                //in production application you would catch the exception
                try {
                        return Integer.parseInt(getTextValue(ele,tagName,""));
                }
                catch (NumberFormatException e) {
                        return defaultValue;
                }
        }

        static public float getFloatValue(Element ele, String tagName,float defaultValue) {
                //in production application you would catch the exception
                try {
                        return Float.parseFloat(getTextValue(ele,tagName,""));
                }
                catch (NumberFormatException e) {
                        return defaultValue;
                }
        }


        static public double getDoubleValue(Element ele, String tagName,double defaultValue) {
                //in production application you would catch the exception
                try {
                        return Double.parseDouble(getTextValue(ele,tagName,""));
                }
                catch (NumberFormatException e) {
                        return defaultValue;
                }
        }

        static public Element createTextElement(Document dom,String tagName,String value) {
                Text text;
                if (tagName==null)
                        System.out.println("Error in XML creation. Empty tagname\n");
                else if (tagName.isEmpty())
                        System.out.println("Error in XML creation. Empty tagname\n");
                Element El = dom.createElement(tagName);
                if (value==null)
                        text=dom.createTextNode("");
                else
                        text=dom.createTextNode(value);
                El.appendChild(text);
                return El;
        }

        static public Element createIntElement(Document dom,String tagName,int value) {
                if (tagName==null)
                        System.out.println("Error in XML creation. Empty tagname\n");
                if (tagName.isEmpty())
                        System.out.println("Error in XML creation. Empty tagname\n");
                Element El = dom.createElement(tagName);
                String s="";
                s += value;
                Text text=dom.createTextNode(s);
                El.appendChild(text);
                return El;
        }

        static public Element createFloatElement(Document dom,String tagName,float value) {
                if (tagName==null)
                        System.out.println("Error in XML creation. Empty tagname\n");
                if (tagName.isEmpty())
                        System.out.println("Error in XML creation. Empty tagname\n");
                Element El = dom.createElement(tagName);
                String s="";
                s += value;
                Text text=dom.createTextNode(s);
                El.appendChild(text);
                return El;
        }

        static public Element createDoubleElement(Document dom,String tagName,double value) {
                if (tagName==null)
                        System.out.println("Error in XML creation. Empty tagname\n");
                if (tagName.isEmpty())
                        System.out.println("Error in XML creation. Empty tagname\n");
                Element El = dom.createElement(tagName);
                String s="";
                s += value;
                Text text=dom.createTextNode(s);
                El.appendChild(text);
                return El;
        }


        static public Element createBoolElement(Document dom,String tagName,boolean value) {
                if (tagName==null)
                        System.out.println("Error in XML creation. Empty tagname\n");
                if (tagName.isEmpty())
                        System.out.println("Error in XML creation. Empty tagname\n");
                Element El = dom.createElement(tagName);

                String sValue;
                if (value)
                        sValue="true";
                else
                        sValue="false";
                Text text=dom.createTextNode(sValue);
                El.appendChild(text);
                return El;
        }
}