Ok I have properly read the documentation header (maybe I should have done this first before posting to the group! :-)...

* Called by the processor through [EMAIL PROTECTED] FOUserAgent} when it encounters an
     * uri in an external-graphic element.
* (see also [EMAIL PROTECTED] javax.xml.transform.URIResolver#resolve(String, String)} * This resolver will allow URLs without a scheme, i.e. it assumes 'file:' as
     * the default scheme. It also allows relative URLs with scheme,
* e.g. file:../../abc.jpg which is not strictly RFC compliant as long as the * scheme is the same as the scheme of the base URL. If the base URL is null * a 'file:' URL referencing the current directory is used as the base URL.
     * If the method is successful it will return a Source of type
* [EMAIL PROTECTED] javax.xml.transform.stream.StreamSource} with its SystemID set to
     * the resolved URL used to open the underlying InputStream.
     * @param href An href attribute, which may be relative or absolute.
* @param base The base URI against which the first argument will be made
     * absolute if the absolute URI is required.
* @return A [EMAIL PROTECTED] javax.xml.transform.Source} object, or null if the href
     * cannot be resolved.
* @throws javax.xml.transform.TransformerException Never thrown by this implementation.
     * @see javax.xml.transform.URIResolver#resolve(String, String)

I understand this is done so that another reference to a javax.xml.transform.URIResolver implementing class might be called upon for resolving. It is the responsibility of the calling code to throw exceptions.. I am tracing the code now in my test case to find out where the exception is not being thrown.

Many thanks,


Adrian Cumiskey wrote:
I am new to the FOP code so please bear with me... but have a quick question about the revolve method in FOURIResolver. It appears to catch all exceptions, log errors, silently return null and doesn't seem to ever throw a TransformerException.

    public Source resolve(String href, String base)
        throws javax.xml.transform.TransformerException {


        try {
            URLConnection connection = absoluteURL.openConnection();
            updateURLConnection(connection, href);
            return new StreamSource(connection.getInputStream(), effURL);
        } catch (FileNotFoundException fnfe) {
//Note: This is on "debug" level since the caller is supposed to handle this
            log.debug("File not found: " + effURL);
        } catch (java.io.IOException ioe) {
log.error("Error with opening URL '" + href + "': " + ioe.getMessage(), ioe);
        return null;

Is this desired behaviour (especially if this method is being invoked indirectly as part of a TestCase)?



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