Help loading XML config file?

[James Dekker]

Hi,

If you've been following my previous posts, you'll notice that I had a problem of trying to load a properties file (stored under WEB-INF), until I edited my build script and made it place the log4j.properties file under WEB-INF/classes, and then used the following code to load in the properties file:

public class Log4jInitServlet extends HttpServlet {
public void init() throws ServletException  {
    Properties  props  = new Properties();        
    try {
props.load(this.getClass().getClassLoader().getResourceAsStream("/log4j.properties"));
} catch (IOException e) {
e.printStackTrace();
}
}

Although, this works for loading property files into my webapp's CLASSPATH, my new question (just for those who think that I am trying to post the same question twice, which I am not), is this:

I also have a servlet which uses init params to load & parse XML config files (which are located under: %TOMCAT_HOME%/mywebapp/WEB-INF/ )

My new question is:

How do I use the getResourceAsStream() method to load this particular XML file which is not located under WEB-INF/classes? Its located under just WEB-INF.

Also is there a way to convert this InputStream into a File?

Here's my original piece of code (which works when undeployWars="true", I am trying to get it to work when undeployWars="false"):

public class XmlConfigInitServlet extends HttpServlet {

public void init() throws ServletException {
// String prefix = getServletContext().getRealPath("/");
String file = getInitParameter("xml-config-file");
File xmlConfigFile = new File(prefix + file);
if (!xmlConfigFile.exists()) {
System.out.println("attributes-config.xml not found, "
+ xmlConfigFile.getAbsolutePath());
}

try {
// Configure Digester from XML ruleset
AttributeBeanXmlConfigHelper.parse(xmlConfigFile);

Logger.getLogger(this.getClass()).warn("Finished parsing the config file.");
is.close();
} catch (Exception ex) {
ex.printStackTrace();
}
}
}

What I thought I could do was something like this inside the try / catch:

InputStream is =
getServletContext().getResourceAsStream("WEB-INF/attributes-config.xml");
 
 
// Configure Digester from XML ruleset
AttributeBeanXmlConfigHelper.parse(xmlConfigFile);

Now, the problem is... I think that there will be definitely be a pathing issue for WEB-INF/attributes-config.xml when using getResourceAsStream() (I am guessing because of my attempts with the Log4jInitServlet postings). Also, how would one convert an InputStream to a File?

e.g

How to convert "is" and "xmlConfigFile"?

Cheers,

JD
[ December 22, 2006: Message edited by: James Dekker ]

[Bear Bibeault]

Please confine this discussion to a single topic.