Java usage example for AltovaXML - Java XML

Java examples for XML:AltovaXML

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Description

Java usage example for AltovaXML

Demo Code

import com.altova.engines.*;
import java.io.*;

/*  Java usage example for AltovaXML
 **    Purpose: //from   ww w.ja v  a 2  s.co m
 ** -  Generate an AltovaXML application class
 **  - Use the validator class to check that the input instance is wellformed
 **  - Use the XQuery engine to copy the input instance 
 ** note: for simplicity file names have been hardcoded, adjust the names as required. 
 ** MAG Sept. 2006
 */
public class AltovaXMLJavaExample

{
    public static void main(String[] args) {
        String inFilename = "c:/program files/altova/altovaxml2007/AltovaXMLexamples/simple.xml";
        String doesNotExist = "c:/program files/doesNotExist.xml";

        String xqFilename = "c:/program files/altova/altovaxml2007/AltovaXMLexamples/CopyInput.xq";
        String resultString;
        System.out.println("AltovaXML Java JNI XQuery");

        /* get application instance */
        try {
            IAltovaXMLFactory objXmlApp = AltovaXMLFactory.getInstance();
            /* get Validator and XQ  method pointers */
            IXMLValidator val = objXmlApp.getXMLValidatorInstance();
            IXQuery xq = objXmlApp.getXQueryInstance();
            /*remove comments on line below to see error being caught*/
            /*val.setInputXMLFileName(doesNotExist);*/
            val.setInputXMLFileName(inFilename);
            if (val.isWellFormed()) { /*if the file is wellformed copy it using XQuery*/
                xq.setInputXMLFileName(inFilename);
                xq.setXQueryFileName(xqFilename);
                /* test return value */
                resultString = xq.executeAndGetResultAsString();
                if (resultString == null) {
                    System.out.println("XQuery error : "
                            + xq.getLastErrorMessage());
                } else {
                    System.out.println("Transform contents>>"
                            + resultString);
                }
            } else {
                System.out.println("Not wellformed error>>"
                        + val.getLastErrorMessage());
            }
            /* release instance pointer */
            objXmlApp.releaseInstance();
        } catch (Exception e) {
            System.out.println("Error : " + e);
        }
    }
}

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