On Thu, 2008-02-14 at 16:43 +0100, Ferdinand Soethe wrote:
> I'm currently testing site-author with fop94 and came across
> this strange problem that in rendering
>
> /committed.html
>
> the aart-image
>
> committed-1.aart (located in xdocs, being called as
> committed-1.png) renders fine in html but causes this error
> in rendering fop.
Hmm, in resources.xmap we have:
<map:match pattern="**.png">
<map:select type="exists">
<map:when test="{lm:project.images.{1}.svg}">
<map:call resource="pipe-aggregate-svg2png-resource">
<map:parameter name="path"
value="{lm:project.images.{1}.svg}" />
</map:call>
</map:when>
<map:when test="{lm:project.images.{1}.aart}">
<map:generate type="asciiart-svg"
src="{lm:project.images.{1}.aart}" />
<map:call resource="transform-project2text"/>
<map:serialize type="svg2png" />
</map:when>
<map:when test="{lm:project.images.{1}.png}">
<map:read src="{lm:project.images.{1}.png}"
mime-type="image/png" />
</map:when>
</map:select>
</map:match>
were {lm:project.images.{1}.aart} is one of
<select>
<location src="{properties:resources.images}{1}.{2}" />
<location
src="{properties:content}../resources/images/{1}.{2}" />
<location src="{properties:content.xdocs}images/{1}.{2}" />
<location src="{properties:content.xdocs}{1}.{2}" />
</select>
> ERROR - Image not available:
> C:\forrest\fop94\site-author/./content/xdocs/committed-1.png
In html this is working but in fop not. It seems that is not matching
the above sitemap snippet.
Looking at http://localhost:8888/committed.html
the link is to <img alt="committer path" src="committed-1.png">
but requesting http://localhost:8888/committed.fo I can find:
<fo:external-graphic
src="/home/thorsten/src/apache/forrest/trunk/site-author/./content/xdocs/committed-1.png"/>
That explains why the above is never hit.
The reason for the behavior is in document-to-fo.xsl:
!-- Make relative paths absolute -->
<xsl:variable name="imgpath">
<xsl:choose>
<!-- resources image dir -->
<xsl:when test="starts-with(string(@src),'images/')">
<xsl:value-of
select="concat($imagesdir,substring-after(@src,'images'))"/>
</xsl:when>
<xsl:when test="contains(string(@src),'/images/')">
<xsl:value-of
select="concat($imagesdir,substring-after(@src,'/images'))"/>
</xsl:when>
<!-- already absolute -->
<xsl:when test="contains(string(@src),':') or
starts-with(string(@src),'/')">
<xsl:value-of select="@src"/>
</xsl:when>
<!-- relative to document -->
<xsl:otherwise>
<xsl:value-of select="concat($xmlbasedir,@src)"/>
</xsl:otherwise>
</xsl:choose>
</xsl:variable>
Hacking the last line (within otherwise) to
<xsl:value-of select="concat('http://localhost:8888/',@src)"/>
will bring back the image (really ugly and bad formated but it is in
there).
My prior hack to <xsl:value-of select="@src"/> did not work because it
seems the resulting document is ignoring the servlet context and use the
relative path from himself.
The problem as I understand it is that
<fo:external-graphic src="$absoluteUrl"/> needs an absolute url to
resolve the image.
However ATM I do not have a good (well thought) solution to resolve this
problem maybe somebody else has some thoughts.
One possible idea is to do the path resolving via the locationmap. Using
lm://committed-1.png which then should be rewritten to the absolute
URL.
One would need to move some logic of the resources.xmap exist matching
to lm matching.
salu2
--
Thorsten Scherler thorsten.at.apache.org
Open Source Java consulting, training and solutions
