Review

finding-3

/mubench/checkouts/jigsaw/205/build/Jigsaw/src/classes/org/w3c/tools/resources/indexer/SampleResourceIndexer.java

createFileResource(File, RequestInterface, String, Hashtable)

class SampleResourceIndexer {
    protected Resource createFileResource(File directory,
					  RequestInterface req,
					  String name,
					  Hashtable defs) 
    {
	ResourceReference rr = null;
	FramedResource template = null;
	Resource       newres = null;
	Class proto = null;
	try {
	    proto = Class.forName("org.w3c.tools.resources.ProtocolFrame");
	} catch (Exception ex) {
	    // fatal error!
	    return null;
	}
	// Check that at least one class is defined for all the extensions:
	String exts[] = getFileExtensions(name) ;
	if ( exts == null )
	    return null ;
	for (int i = exts.length-1 ; i >= 0 ; i--) {
	    rr = getTemplateFor(exts[i]) ;
	    if ( rr != null )
		break ;
	}
	if ( rr == null ) {
	    // Look for a default template:
	    if ((rr = loadExtension(defname)) == null)
		return null ;
	}
	// Create the runtime-time default values for attributes.
	if ( defs == null )
	    defs = new Hashtable(5) ;
	if ( defs.get("directory") == null )
	    defs.put("directory", directory) ;
	if ( defs.get("identifier") == null )
	    defs.put("identifier", getIndexedFileName(name)) ;
	else 
	    defs.put("identifier", 
		     getIndexedFileName((String)defs.get("identifier"))) ;
	if ( defs.get("filename") == null)
	    defs.put("filename", name) ;
	if ( defs.get("context") == null )
	    defs.put("context", getContext());
	try {
	    template = (FramedResource) rr.lock();
	    if (exts != null) {
		// Merge with values defined by the extension:
		for (int i = exts.length ; --i >= 0 ; ) 
		    mergeDefaultAttributes(template, exts[i], defs) ;
	    }
	    // Create, initialize and return the new resouce
	    try {
		newres = (FramedResource) template.getClone(defs);
	    } catch (Exception ex) {
		ex.printStackTrace() ;
		return null ;
	    }
	} catch (InvalidResourceException ex) {
	    ex.printStackTrace();
	    return null;
	} finally {
	    rr.unlock();
	}
		// clone has been done, merge frames now
	if (exts != null) {
	    ResourceFrame rf[] = newres.collectFrames(proto);
	    if (rf != null) {
		for (int j=0; j < rf.length; j++) {
		    for (int i = exts.length-1 ; i >= 0 ; i--) {
			rr = getTemplateFor(exts[i]) ;
			if ( rr != null ) {
			    FramedResource fr = null;
			    try {
				fr = (FramedResource) rr.lock();
				ResourceReference trr = null;
				trr = fr.getFrameReference(proto);
				if (trr != null) {
				    mergeFrameAttributes(rf[j], exts[i], trr);
				}
			    } catch (InvalidResourceException iex) {
				iex.printStackTrace();
				return null;
			    } finally {
				rr.unlock();
			    }  
			}
		    }
		}
	    }
	}
	return newres;
    }
}