Two webapps or one big webapp

If my application webapp runs the report and I want the viewer servlet to render the document. What is the best or preferred way to deploy ?

1) Create one big war file?
2) Create two web apps like
Tomcat/webapp/myapp
Tomcat/webapp/birt-viewer
I guess i have to copy the RE in two places. am I right ?

3) Ideally I want to use one copy of the BIRT. and I should be able to execute the report in development(coping the folder structure under tomcat webapp) and in production (using war)

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JasonW

in your case 2, you may be able to make your application use the birt viewer home like:

EngineConfig config = new EngineConfig();
String pt="";
ServletContext ctx = sc.getContext("/birt-viewer");
if( ctx != null ){
pt = ctx.getRealPath("/");
}
pt= pt +"WEB-INF/platform/";
pt = pt.replaceAll("","/");
config.setBIRTHome(pt);
Platform.startup( config );
IReportEngineFactory factory = (IReportEngineFactory) Platform
.createFactoryObject( IReportEngineFactory.EXTENSION_REPORT_ENGINE_FACTORY );
birtEngine = factory.createReportEngine( config );

This assumes that the crossContext for both apps are set to true.