public String embed()

in src/main/java/org/apache/commons/mail/HtmlEmail.java [253:304]
41 lines of code
7 McCabe index (conditional complexity)

    public String embed(final URL url, final String name) throws EmailException
    {
        if (EmailUtils.isEmpty(name))
        {
            throw new EmailException("name cannot be null or empty");
        }

        // check if a URLDataSource for this name has already been attached;
        // if so, return the cached CID value.
        final InlineImage ii = inlineEmbeds.get(name);
        if (ii != null)
        {
            final URLDataSource urlDataSource = (URLDataSource) ii.getDataSource();
            // make sure the supplied URL points to the same thing
            // as the one already associated with this name.
            // NOTE: Comparing URLs with URL.equals() is a blocking operation
            // in the case of a network failure therefore we use
            // url.toExternalForm().equals() here.
            if (url.toExternalForm().equals(urlDataSource.getURL().toExternalForm()))
            {
                return ii.getCid();
            }
            throw new EmailException("embedded name '" + name
                + "' is already bound to URL " + urlDataSource.getURL()
                + "; existing names cannot be rebound");
        }

        // verify that the URL is valid
        InputStream is = null;
        try
        {
            is = url.openStream();
        }
        catch (final IOException e)
        {
            throw new EmailException("Invalid URL", e);
        }
        finally
        {
            try
            {
                if (is != null)
                {
                    is.close();
                }
            }
            catch (final IOException ioe) // NOPMD
            { /* sigh */ }
        }

        return embed(new URLDataSource(url), name);
    }