static public BaseCASObject createCASObjectFromFile()

in CasViewerEclipsePlugin/uimaj-ep-casviewer-core/src/main/java/org/apache/uima/casviewer/core/internal/casreader/XcasOrXmiUtil.java [329:386]
44 lines of code
14 McCabe index (conditional complexity)

    static public BaseCASObject createCASObjectFromFile (String xcasOrxmiFileName)
    {
        // Check for null or empty file name
        if (xcasOrxmiFileName == null || xcasOrxmiFileName.trim().length()==0 ) {
            return null;
        }
        // Which file format (XMI or XCAS) ?
        if (!xcasOrxmiFileName.endsWith("xmi") && !xcasOrxmiFileName.endsWith("xcas")) {
            Trace.bug("Cannot open this unknown file: " + xcasOrxmiFileName);
            return null;
        }

        String s = xcasOrxmiFileName.replace('\\', '/');
        int lastIndex = s.lastIndexOf('/');

        // Look for TypePriorities xml file
        String typePrioritiesFileName = null;
        if ( lastIndex != -1) {
            typePrioritiesFileName = s.substring(0, lastIndex+1) + DEFAULT_TYPE_PRIORITIES_FOR_XCAS;
        }
        if ( ! (new File(typePrioritiesFileName)).exists() ) {
            // No Type Priorities file
            // Trace.err("NO priority file: " + typePrioritiesFileName);
            typePrioritiesFileName = null;
        }

        // Look for Type System used with this Xcas or Xmi
        // Prefix with the path from this instance file. Make the file absolute
        String      typesystemFileName = null;
        if ( lastIndex != -1) {
            typesystemFileName = s.substring(0, lastIndex+1) + DEFAULT_TYPE_SYSTEM_FOR_XCAS;
        } else {
            typesystemFileName = DEFAULT_TYPE_SYSTEM_FOR_XCAS;
        }
        if ( ! (new File(typesystemFileName)).exists() ) {
            // No Type System file
            return null;
        }

        // De-serialize and create BaseCASObject
        BaseCASObject   casObject = null;
        try {
            casObject = createBaseCASObjectFromFile(typesystemFileName, 
                    xcasOrxmiFileName, typePrioritiesFileName);
        } catch (InvalidXMLException e) {
            e.printStackTrace();
        } catch (ResourceInitializationException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (ParserConfigurationException e) {
            e.printStackTrace();
        } catch (SAXException e) {
            e.printStackTrace();
        }

        return casObject;
    } // createCASObjectFromFile