How to select saxon TransformerFactory in Java

Question

In my web application I need to use Saxon TransformerFactory in order to use XSLT 2.0 but I can't use setProperty method because I don't have this right on the web server and there is a Security Manager.

So I have read that it should be possible to do this:

Use the Services API (as detailed in the JAR specification), if available, to determine the classname. The Services API will look for a classname in the file META-INF/services/javax.xml.transform.TransformerFactory in jars available to the runtime.

I found this file in WEB-INF/lib/saxon9.jar but when I istantiate a TransformerFactory, the default factory is always selected instead of a Saxon factory.

How can I select Saxon Transformer Factory?

Thanks

Answer 1

The proper way to do this is by specifying the factory class when getting a new TransformerFactory.

I dont think calling a specific factory implementation will work - I believe the default system transformer might still be returned (at least thats what happened when I had xalan and saxon in the classpath).

example:

TransformerFactory tFactory = TransformerFactory.newInstance("org.apache.xalan.processor.TransformerFactoryImpl",null);

or for saxon

TransformerFactory tFactory = TransformerFactory.newInstance("net.sf.saxon.TransformerFactoryImpl",null);

Javadocs:

Obtain a new instance of a TransformerFactory from factory class name. This function is useful when there are multiple providers in the classpath. It gives more control to the application as it can specify which provider should be loaded. Once an application has obtained a reference to a TransformerFactory it can use the factory to configure and obtain transformer instances.