FOP驱动程序配置与FOPFactory相同 [英] FOP Driver Configuration same as FOPFactory

问题描述

我目前正在使用通过Driver嵌入的FOP，如下所示

I am currently using FOP embedded using Driver as follows

Driver driver = new Driver();  
driver.setRenderer(Driver.RENDER_PDF);  
driver.setInputSource(new InputSource(new FileInputStream(tempout)));  
File tempFile = File.createTempFile("W2P", ".pdf");  
FileOutputStream pdfOutput = new FileOutputStream(tempFile);  
tempFile.deleteOnExit();  
driver.setOutputStream(pdfOutput);  
driver.run();  

但是我想以编程方式访问配置设置，特别是输出分辨率，因为我必须生成多个分辨率文件72dpi 150dpi 300dpi 我能找到的唯一方法是按如下所示更改为FOPFactory

but i would like to have access to configuration settings programatically specifically the output resolution as I have to produce multiple resolution files 72dpi 150dpi 300dpi the only way i can find of doing that is by changing to a FOPFactory as follows

FopFactory fopFactory = FopFactory.newInstance();
OutputStream out = new BufferedOutputStream(new FileOutputStream(new File("C:/Temp/myfile.pdf")));
Fop fop = fopFactory.newFop(MimeConstants.MIME_PDF, out);
TransformerFactory factory = TransformerFactory.newInstance();
Transformer transformer = factory.newTransformer(); // identity transformer
Source src = new StreamSource(new File("C:/Temp/myfile.fo"));
Result res = new SAXResult(fop.getDefaultHandler());
transformer.transform(src, res);

是否可以使用驱动程序来控制FOP引擎，或者我必须切换到FOPFactory?这样做有什么好处/问题?

Is there a way of controling the FOP engine using Driver or will i have to switch to FOPFactory and what are the benefits/problems in doing so?

推荐答案

Driver类仅在FOP的旧版本和未维护版本(0.20.5和更早版本)中可用.多年前就引入了新稳定API" (包括FopFactory).因此，我的建议是使用FopFactory和最新的FOP(1.0).

The Driver class is only available in old and unmaintained versions of FOP (0.20.5 and earlier). A "new stable API" (including FopFactory) was introduced years ago. So my advice would be to use FopFactory and the latest FOP (1.0).

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