public String embed()

in src/main/java/org/apache/commons/mail/HtmlEmail.java [349:411]
53 lines of code
9 McCabe index (conditional complexity)

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

        // verify that the File can provide a canonical path
        String filePath = null;
        try
        {
            filePath = file.getCanonicalPath();
        }
        catch (final IOException ioe)
        {
            throw new EmailException("couldn't get canonical path for "
                    + file.getName(), ioe);
        }

        // check if a FileDataSource for this name has already been attached;
        // if so, return the cached CID value.
        final InlineImage ii = inlineEmbeds.get(file.getName());
        if (ii != null)
        {
            final FileDataSource fileDataSource = (FileDataSource) ii.getDataSource();
            // make sure the supplied file has the same canonical path
            // as the one already associated with this name.
            String existingFilePath = null;
            try
            {
                existingFilePath = fileDataSource.getFile().getCanonicalPath();
            }
            catch (final IOException ioe)
            {
                throw new EmailException("couldn't get canonical path for file "
                        + fileDataSource.getFile().getName()
                        + "which has already been embedded", ioe);
            }
            if (filePath.equals(existingFilePath))
            {
                return ii.getCid();
            }
            throw new EmailException("embedded name '" + file.getName()
                + "' is already bound to file " + existingFilePath
                + "; existing names cannot be rebound");
        }

        // verify that the file is valid
        if (!file.exists())
        {
            throw new EmailException("file " + filePath + " doesn't exist");
        }
        if (!file.isFile())
        {
            throw new EmailException("file " + filePath + " isn't a normal file");
        }
        if (!file.canRead())
        {
            throw new EmailException("file " + filePath + " isn't readable");
        }

        return embed(new FileDataSource(file), file.getName(), cid);
    }