Jeremias, my fault again. You are absolutely right, I should provide a "deprecated" version of the old classes in all cases, and probably discuss the idea.
I'll do the later today, and here's the second one: Background is this thread [1] which showed a flaw in the way FOP resolves URIs. Current Situation: * FOP provides support for 1 Custom Resolver * It also adds the data: URI resolver * and has a sophisticated resolving method for other URIs which are openable through URL.open (better than the JDK default) Problem: A plugin cannot add a URIResolver to FOP, as there is only 1 custom resolver, and it is defined by the user. Main Idea: Support a generic "chain" of URIResolvers. All URI resolvers are called in order, if one of them can resolve the URI it will return a source, otherwise null. Implementation Idea: Need a URIResolver registry, like the ImageLoader registry. It should automatically load all URIResolvers declared as service, and provide register() and unregister() functionality. A Generic URI resolver will then try all registered resolvers first, and then fall back to the default (which would be the functionality as it is in FOP now). Plugins can then register their own URI resolver, which could either add URIs (there are some examples of a XML: URI in commons, which would be interesting), or provide mapping for well-known URIs, such as the ones of DTDs and entities. [1] http://www.nabble.com/Getting-Batik-to-read-SVG-DTDs-via-catalog-resolver-td18169780.html Hope this makes sense Max Jeremias Maerki schrieb: > I'm seeing a new pattern here and I'm not entirely happy about it. I'd > prefer at least a short deprecation time (one release) before final > removal. Also a short discussion or at least an advance notice about > someone's intentions and motivations would be appreciated. But maybe > that's only me. > > On 24.08.2008 15:12:02 maxberger wrote: >> Author: maxberger >> Date: Sun Aug 24 06:12:02 2008 >> New Revision: 688508 >> >> URL: http://svn.apache.org/viewvc?rev=688508&view=rev >> Log: >> Moved DataURIResolver from FOP to commons; use new URIResolver registry >> >> Removed: >> xmlgraphics/fop/trunk/src/java/org/apache/fop/util/DataURIResolver.java >> xmlgraphics/fop/trunk/src/java/org/apache/fop/util/DataURLUtil.java >> >> xmlgraphics/fop/trunk/src/java/org/apache/fop/util/WriterOutputStream.java >> >> xmlgraphics/fop/trunk/test/java/org/apache/fop/util/DataURIResolverTestCase.java >> Modified: >> xmlgraphics/fop/trunk/lib/xmlgraphics-commons-1.4svn.jar >> xmlgraphics/fop/trunk/src/java/org/apache/fop/apps/FOURIResolver.java >> xmlgraphics/fop/trunk/test/java/org/apache/fop/UtilityCodeTestSuite.java > > > On 20.08.2008 17:13:56 acumiskey wrote: >> Author: acumiskey >> Date: Wed Aug 20 08:13:56 2008 >> New Revision: 687369 >> >> URL: http://svn.apache.org/viewvc?rev=687369&view=rev >> Log: >> * Updated xmlgraphics-commons-14svn.jar to reflect UnitConv additions. >> * Removed UnitConv and its unit test case (now resides in commons). >> * Updated all fop util package references fpr UnitConv to xmlgraphics >> commons util package. >> >> Removed: >> xmlgraphics/fop/trunk/src/java/org/apache/fop/util/UnitConv.java >> xmlgraphics/fop/trunk/test/java/org/apache/fop/util/UnitConvTestCase.java >> Modified: >> xmlgraphics/fop/trunk/lib/xmlgraphics-commons-1.4svn.jar >> >> xmlgraphics/fop/trunk/src/java/org/apache/fop/render/AbstractGraphics2DAdapter.java >> >> xmlgraphics/fop/trunk/src/java/org/apache/fop/render/AbstractPathOrientedRenderer.java >> >> xmlgraphics/fop/trunk/src/java/org/apache/fop/render/pcl/PCLGenerator.java >> >> xmlgraphics/fop/trunk/src/java/org/apache/fop/render/pcl/PCLGraphics2D.java >> >> xmlgraphics/fop/trunk/src/java/org/apache/fop/render/pcl/PCLGraphics2DAdapter.java >> >> xmlgraphics/fop/trunk/src/java/org/apache/fop/render/pcl/PCLPageDefinition.java >> xmlgraphics/fop/trunk/src/java/org/apache/fop/render/pcl/PCLRenderer.java >> xmlgraphics/fop/trunk/src/java/org/apache/fop/render/txt/TXTRenderer.java >> xmlgraphics/fop/trunk/test/java/org/apache/fop/UtilityCodeTestSuite.java > > > > Jeremias Maerki >
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