Bug 120345 Need a URL generator API from Engine
The Chart Engine needs the ability to generate a viewer URL from an ActionHandle, this can be provided by a Report Engine public API for instance. The URL should usable as is by the viewer without any additional change. The Chart Engine can take care of evaluating the expressions inside the ActionHandle before calling the Report Engine API if necessary.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/executor/ExecutionContext.java
{
	
	private static Logger log = Logger.getLogger( ExecutionContext.class
			.getName( ) );
	
	
	private ReportEngine engine;
	/**
	 * task ID string
	 */
	private String taskIDString;
	/**
	 * execution mode, in this mode, the render operation should be executed.
	 */
	private boolean presentationMode = false;
	/**
	 * execution mode, in this mode, the genreation opration should be executed.
	 */
	private boolean factoryMode = true;
	
	/**
	 * The scripting context, used to evaluate the script.
	 */
	private ScriptContext scriptContext;
	/**
	 * data engine, used to evaluate the data related expressions.