public InputSource resolveEntity()

in commons-digester3-core/src/main/java/org/apache/commons/digester3/Digester.java [2550:2617]
56 lines of code
13 McCabe index (conditional complexity)

    public InputSource resolveEntity( final String publicId, final String systemId )
        throws SAXException
    {
        if ( saxLog.isDebugEnabled() )
        {
            saxLog.debug( "resolveEntity('" + publicId + "', '" + systemId + "')" );
        }

        if ( publicId != null )
        {
            this.publicId = publicId;
        }

        // Has this system identifier been registered?
        URL entityURL = null;
        if ( publicId != null )
        {
            entityURL = entityValidator.get( publicId );
        }

        // Redirect the schema location to a local destination
        if ( entityURL == null && systemId != null )
        {
            entityURL = entityValidator.get( systemId );
        }

        if ( entityURL == null )
        {
            if ( systemId == null )
            {
                // cannot resolve
                if ( log.isDebugEnabled() )
                {
                    log.debug( " Cannot resolve null entity, returning null InputSource" );
                }
                return null;

            }
            // try to resolve using system ID
            if ( log.isDebugEnabled() )
            {
                log.debug( " Trying to resolve using system ID '" + systemId + "'" );
            }
            try
            {
                entityURL = new URL( systemId );
            }
            catch ( final MalformedURLException e )
            {
                throw new IllegalArgumentException( "Malformed URL '" + systemId + "' : " + e.getMessage() );
            }
        }

        // Return an input source to our alternative URL
        if ( log.isDebugEnabled() )
        {
            log.debug( " Resolving to alternate DTD '" + entityURL + "'" );
        }

        try
        {
            return createInputSourceFromURL( entityURL );
        }
        catch ( final Exception e )
        {
            throw createSAXException( e );
        }
    }