I have two jars (main.jar and schema.jar) and I need to read a schema file (located in src/main/resources/sample.xsd) from schema.jar in a class within main.jar. main.jar has schema.jar on its classpath as a maven dependency. I'm able to find the sample.xsd file when I use the this.getClass().getClassLoader().getResourceAsStream, but I need a java.io.File. What is the most memory efficient approach to supply the java.io.File parameter?
main.jar:
InputStream in = this.getClass().getClassLoader()
.getResourceAsStream("/resources/sample.xsd");
Sample sample = new Sample();
//set sample data here
Marshaller marshaller = JAXBContext.newInstance(Sample.getClass()).createMarshaller();
final SchemaFactory schemaFactory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
final Schema s = schemaFactory.newSchema(new File("/resources/sample.xsd"));
marshaller.setSchema(s);
marshaller.marshal(Sample, XML);
Just use SchemaFactory#newSchema(URL)
method instead.
URL url = getClass().getClassLoader().getResource("/resources/sample.xsd");
// ...
final Schema s = schemaFactory.newSchema(url);
No need to massage the InputStream
into a File
which isn't nicely possible anyway (you could create a temp file, but that's plain clumsy). JAXB will under the covers grab the InputStream
from the supplied URL
by URL#openStream()
.
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