Hi,
I just upgraded our program to use FOP 0.20.0
We embedded FOP and used the old official method to call it.
I mean using somthing like this :
Driver driver = new Driver();
driver.setRenderer(Driver.RENDER_PDF);
ByteArrayOutputStream out = new ByteArrayOutputStream();
driver.setOutputStream(out);
ContentHandler cnth = driver.getContentHandler();
sendSAXEvents(cnth);
driver.format();
driver.render();
byte[] content = out.toByteArray();
However this not longer works with 0.20.0
for a few reasons:
1°) there is no driver.format() method.
2°) there is no driver.render() method (there are two version with
parameters).
Still removing those two method calls still does not work as
using the ContentHandler returned by driver.getContentHandler
generates a NullPointException because the
_treeBuilder.setStreamRenderer(streamRenderer)
is not called (and the FOTreeBuilder needs it).
so I changed a few lines in Driver.java to fix this...
I added a method driver.prepareRender() that setups the _treeBuilder
I changed both render method to use the new prepareRender
so my program now looks like this (and works).
Driver driver= new Driver();
driver.setRenderer(Driver.RENDER_PDF);
ByteArrayOutputStream out = new ByteArrayOutputStream();
driver.setOutputStream(out);
driver.prepareRender();
ContentHandler cnth = driver.getContentHandler();
sendSAXEvents(cnth);
byte[] content = out.toByteArray();
What do you think ? Was it a good idea ? anyother idea on how to acheive
this ?
I though about putting back the render() method (without parameters), but I
tough it was
weird as it would need to be called before the SAX events are generated.
Michel Lehon
[EMAIL PROTECTED]
SAS Data Warehousing and Web Enablement.
Driver.java
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