private void loadDescriptor(final URL descriptorURL) {
// simple path for log messages
final String descriptorLocation = descriptorURL.getPath();
InputStream stream = null;
try {
stream = descriptorURL.openStream();
BufferedReader in = new BufferedReader(new InputStreamReader(stream));
XmlHandler handler = new XmlHandler(m_context.getBundle(), this);
KXml2SAXParser parser;
parser = new KXml2SAXParser(in);
parser.parseXML(handler);
// 112.4.2 Component descriptors may contain a single, root component element
// or one or more component elements embedded in a larger document
Iterator i = handler.getComponentMetadataList().iterator();
while (i.hasNext()) {
ComponentMetadata metadata = (ComponentMetadata) i.next();
try {
// check and reserve the component name
m_componentRegistry.checkComponentName(metadata.getName());
// validate the component metadata
metadata.validate(this);
// Request creation of the component manager
ComponentHolder holder = m_componentRegistry.createComponentHolder(this, metadata);
// register the component after validation
m_componentRegistry.registerComponentHolder(metadata.getName(), holder);
m_managers.add(holder);
// enable the component
if (metadata.isEnabled()) {
holder.enableComponents();
}
} catch (Throwable t) {
// There is a problem with this particular component, we'll log the error
// and proceed to the next one
log(LogService.LOG_ERROR, "Cannot register Component", metadata, t);
// make sure the name is not reserved any more
m_componentRegistry.unregisterComponentHolder(metadata.getName());
}
}
} catch (IOException ex) {
// 112.4.1 If an XML document specified by the header cannot be located in the bundle and its
// attached
// fragments, SCR must log an error message with the Log Service, if present, and continue.
log(
LogService.LOG_ERROR,
"Problem reading descriptor entry ''{0}''",
new Object[] {descriptorLocation},
null,
ex);
} catch (Exception ex) {
log(
LogService.LOG_ERROR,
"General problem with descriptor entry ''{0}''",
new Object[] {descriptorLocation},
null,
ex);
} finally {
if (stream != null) {
try {
stream.close();
} catch (IOException ignore) {
}
}
}
}
