.jasper to .jrxml

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package Converters; // my own package<br />
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<br />
import net.sf.jasperreports.engine.JasperReport;<br />
import net.sf.jasperreports.engine.JRException;<br />
import net.sf.jasperreports.engine.util.JRLoader;<br />
import net.sf.jasperreports.engine.xml.JRXmlWriter;<br />
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class JasperToJrxml<br />
{<br />
   public static String fileName,<br />
                        sourcePath,<br />
                        outputPath;<br />
                        <br />
   public static JasperReport jasperReport; <br />
   <br />
   <br />
   public static void main(String [] args) {<br />
      // base name of the file (no file extension)<br />
      //    refers to the name of the .jasper file and<br />
      //    used as the name for the generated .jrxml file<br />
      fileName   = "nameOfFile";  <br />
         <br />
      // source: .jasper file<br />
      sourcePath = "C:\\xxxx\\yyyy\\zzzz\\jasper\\" <br />
                 + fileName + ".jasper"; <br />
                <br />
      // output: .jrxml file<br />
      outputPath = "C:\\xxxx\\yyyy\\zzzz\\jrxml\\" <br />
                 + fileName + ".jrxml";  <br />
      <br />
      // using the source file on "sourcePath",  <br />
      //    generate the .jrxml file and place it on "outputPath"<br />
      generateJrxmlFile(fileName, sourcePath, outputPath);<br />
   }<br />
   <br />
   <br />
   public static void generateJrxmlFile(String fn, String sp, String op)<br />
   {<br />
      try<br />
      {<br />
         // load the .jasper file on "sourcePath" (cast to JasperReport object)<br />
         jasperReport = (JasperReport) JRLoader.loadObject(sourcePath);<br />
         <br />
         // write the xml code generated from the JasperReport object<br />
         //    into "outputPath" using "UTF-8" encoding<br />
         JRXmlWriter.writeReport(jasperReport, outputPath, "UTF-8");<br />
      }<br />
      catch(JRException e)<br />
      {<br />
         e.printStackTrace();<br />
      }<br />
   }<br />
}<br />
</td></tr></tbody></table><br />
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<b>OBSERVATIONS:</b><br />
we were initially using the JasperReports v.1.3.3 jar but we couldn't generate the .jrxml file for .jasper file that was quite old using the new jar. we could only generate the .jrxml files from newer .jasper files.<br />
to be able to generate the .jrxml file from a fairly old .jasper file (created with JR v.1.2.4), we had to remove the new jar (v.1.3.3) and replace it with the 1.2.4 jar in our buildpath (eclipse).<br />
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<b>OTHER JARS:</b><br />
i am not sure if this only applies to our case... aside from the Jasper Reports jar (v.1.2.4) that we already have on our buildpath, we also had to include the following jars (Apache Commons) since eclipse was generating several errors that prompted us to search for these jars:<br />
- commons-collections-3.2.jar<br />
- commons-digester-3.8.jar<br />
- commons-logging-1.1.jar<br />
- commons-io-1.3.1.jar<br />
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<b>MODIFICATIONS:</b><br />
this might be an eclipse issue but we are still trying to find out how to make the code compile and run for a .jasper file whose version is not known. we are tring it out by simply using the newest jar to including all the old JasperReports jars. no luck yet. however, i hope this helps someone in need of this information.<br />
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<b>REFERENCE THREAD:</b><br />
the code above was made with the help of <b>Lucian Chirita</b>, senior software engineer of JasperReports, who gave us advise on what should actually appear in there. see the following url:<br />
<a href="http://www.jasperforge.org/index.php?option=com_joomlaboard&Itemid=&func=view&catid=8&id=25854#25854" target="_blank">http://www.jasperforge.org/index.php?option=com_joomlaboard&Itemid=&func=view&catid=8&id=25854#25854</a><br><br />
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Edwin<br>Post edited by: redwine, at: 2007/06/05 16:05