/** Closes a Jar file and set its URLConnection to null. */
private void closeJar(String path) {
if (jarfiles.containsKey(path)) {
JarHolder theJar = (JarHolder) jarfiles.get(path);
theJar.close();
}
}
private void loadJar(String path) {
if (getLogger().isDebugEnabled()) {
getLogger().debug("JarResourceLoader : trying to load \"" + path + "\"");
}
// Check path information
if (path == null) {
getLogger().error("JarResourceLoader : can not load JAR - JAR path is null");
}
if (!path.startsWith("jar:")) {
getLogger()
.error(
"JarResourceLoader : JAR path must start with jar: -> "
+ "see java.net.JarURLConnection for information");
}
if (!path.endsWith("!/")) {
path += "!/";
}
// Close the jar if it's already open
// this is useful for a reload
closeJar(path);
// Create a new JarHolder
JarHolder temp = new JarHolder(path);
// Add it's entries to the entryCollection
addEntries(temp.getEntries());
// Add it to the Jar table
jarfiles.put(temp.getUrlPath(), temp);
}
/**
* Get an InputStream so that the Runtime can build a template with it.
*
* @param source name of template to get
* @return InputStream containing the template
* @throws ResourceNotFoundException if template not found in the file template path.
*/
public InputStream getResourceAsInputStream(String source) throws ResourceNotFoundException {
InputStream results = null;
if (source == null || source.length() == 0) {
throw new ResourceNotFoundException("Need to have a resource!");
}
if (source == null || source.length() == 0) {
String msg =
"JAR resource error : argument "
+ source
+ " contains .. and may be trying to access "
+ "content outside of template root. Rejected.";
getLogger().error("JarResourceLoader : " + msg);
throw new ResourceNotFoundException(msg);
}
/*
* if a / leads off, then just nip that :)
*/
if (source.startsWith("/")) {
source = source.substring(1);
}
if (entryDirectory.containsKey(source)) {
String jarurl = (String) entryDirectory.get(source);
if (jarfiles.containsKey(jarurl)) {
JarHolder holder = (JarHolder) jarfiles.get(jarurl);
results = holder.getResource(source);
return results;
}
}
throw new ResourceNotFoundException("JarResourceLoader Error: cannot find resource " + source);
}
