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Velocity and JasperReports


nemanzini

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Hi guys, I'm new at java and jasper. I have created reports using JasperReports and iReport but have to make my reports more dynamic. Users should be able to select columns that should appear on report.

I have tried going thru the article- http://www.ibm.com/developerworks/websphere/library/techarticles/0505_olivieri/0505_olivieri.html

but have an error that reads - identify expected at this line :- BufferedWriter writer = new BufferedWriter(new, OutputStreamWriter(outStream));

here is the complete code:

import org.apache.velocity.Template;

import org.apache.velocity.app.Velocity;

import org.apache.velocity.context.Context;

import org.apache.velocity.exception.ParseErrorException;

import org.apache.velocity.exception.ResourceNotFoundException;

import org.apache.velocity.servlet.VelocityServlet;

import java.io.BufferedWriter;

import java.io.PipedInputStream;

import java.io.PipedOutputStream;

 

 

 

import javax.servlet.ServletConfig;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import java.util.Properties;

public class VelocityTest extends VelocityServlet {

protected Properties loadConfiguration(ServletConfig config) {

Properties properties = new Properties();

properties.setProperty(Velocity.FILE_RESOURCE_LOADER_PATH, config.getServletContext().getRealPath("/"));

 

return properties;

}

 

public Template handleRequest(HttpServletRequest request, HttpServletResponse response, Context context) {

context.put("sql","SELECT * from wcs.tblpayments");

String fieldList[] = {"PAYMENT_NO","WCS_NUMBER","CONTRACT_NO","PAYMENT_INDICATOR","DIVISION_CODE","BENEFICIARY_CODE"," ADVICE_NUMBER"};

context.put("title","testing Velocity");

context.put("$headerString","HEADER");

context.put("fieldList",fieldList);

Template template = null;

PipedInputStream inStream;

BufferedWriter writer ;

Thread thread;

PipedOutputStream outStream;

TemplateCompiler compiler;

try {

PipedOutputStream outStream = new PipedOutputStream();

 

BufferedWriter writer = new BufferedWriter(new, OutputStreamWriter(outStream));

 

 

// Connect input stream to output stream

inStream = new PipedInputStream(outStream);

compiler = new TemplateCompiler(inStream);

thread = new Thread(compiler);

thread.start();

template.merge(context, writer);

template = getTemplate("BasicReport.vm");

 

// tpl = getTemplate("hello.vm");

} catch (ResourceNotFoundException e) {

e.printStackTrace();

} catch (ParseErrorException e) {

e.printStackTrace();

} catch (Exception e) {

e.printStackTrace();

} finally {

if (writer != null) {

writer.flush();

writer.close();

}

}

thread.join();

// Get compiled report

return (compiler.getJasperReport());

}

 

 

}

 

 

any assistance will be greatly appreciated

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