private Set getHttpListing()

in commons-transfer/commons-transfer-http/src/main/java/org/apache/archiva/commons/transfer/http/HttpTransferDownloader.java [165:214]

46 lines of code
6 McCabe index (conditional complexity)


    private Set<String> getHttpListing( URI absoluteURI, TransferFileFilter filter )
        throws HttpException, IOException, TransferException
    {
        GetMethod getmethod = new GetMethod( absoluteURI.toASCIIString() );
        try
        {
            getmethod.setFollowRedirects( true );

            int status = client.executeMethod( getmethod );

            if ( status != 200 )
            {
                triggerFailure( absoluteURI, status );
                switch ( status )
                {
                    case HttpStatus.SC_NOT_FOUND:
                        log.info( "Listing Not Found (404) for " + absoluteURI.toASCIIString() );
                        return Collections.emptySet();
                    case HttpStatus.SC_UNAUTHORIZED:
                    case HttpStatus.SC_PROXY_AUTHENTICATION_REQUIRED:
                        throw new TransferAuthenticationRequiredException( HttpStatus.getStatusText( status ) + " - "
                            + absoluteURI.toASCIIString() );
                    default:
                        throw new TransferException( "Error[" + status + ":" + HttpStatus.getStatusText( status )
                            + "] " + absoluteURI.toASCIIString() );
                }
            }

            InputStream input = null;

            try
            {
                input = getmethod.getResponseBodyAsStream();
                return linkParser.collectLinks( absoluteURI, input, filter );
            }
            catch ( SAXException e )
            {
                log.warn( "Unable to parse " + absoluteURI.toASCIIString() );
                return Collections.emptySet();
            }
            finally
            {
                IOUtils.closeQuietly( input );
            }
        }
        finally
        {
            getmethod.releaseConnection();
        }
    }