Problem using WFS client in multi-classloader environment (fix attached)
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Key: GEOT-2984
URL: http://jira.codehaus.org/browse/GEOT-2984
Project: GeoTools
Issue Type: Bug
Components: data wfs
Affects Versions: 2.6.2, 2.6.1
Environment: Apache Felix 4.0.2
Reporter: Nathan Mittler
Fix For: 2.6.3
Attachments: WFSExtensions.java
I had to fix what I believe to be a bug in the WFS client to get it working
under OSGI (Apache Felix 2.0.4), and I wanted to share what I found ...
I had to change the way that org.geotools.data.wfs.protocol.wfs.WFSExtensions
looks up the WFSResponseParserFactory service. Currently, the code is going
straight to the javax.imageio.spi.ServiceRegistry. Looking around the code,
however, it seemed that other places were using the
org.geotools.factory.FactoryCreator class, which is a bit more clever when it
comes to mulit-classloader environments (such as OSGI). I modified the core
logic into the getServiceProviders method to the following:
FactoryRegistry factReg = new FactoryCreator( new
Class[]{WFSResponseParserFactory.class});
factReg.scanForPlugins();
Iterator<WFSResponseParserFactory> providers =
factReg.getServiceProviders(WFSResponseParserFactory.class, true);
registry = new HashSet<WFSResponseParserFactory>();
while (providers.hasNext()) {
WFSResponseParserFactory provider = providers.next();
registry.add(provider);
}
This seems to solve the problem. I've attached the WFSExtensions.java file
with my modifications. This is a change made against geotools 2.6.1, although
looking in svn 2.6.2 has the same problem.
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