// FIXME: Perhaps this should fail somehow.
public AttachmentManager(WikiEngine engine, Properties props) {
String classname;
m_engine = engine;
//
// If user wants to use a cache, then we'll use the CachingProvider.
//
boolean useCache = "true".equals(props.getProperty(PageManager.PROP_USECACHE));
if (useCache) {
classname = "org.apache.wiki.providers.CachingAttachmentProvider";
} else {
classname = props.getProperty(PROP_PROVIDER);
}
//
// If no class defined, then will just simply fail.
//
if (classname == null) {
log.info("No attachment provider defined - disabling attachment support.");
return;
}
//
// Create and initialize the provider.
//
try {
Class<?> providerclass = ClassUtil.findClass("org.apache.wiki.providers", classname);
m_provider = (WikiAttachmentProvider) providerclass.newInstance();
m_provider.initialize(m_engine, props);
} catch (ClassNotFoundException e) {
log.error("Attachment provider class not found", e);
} catch (InstantiationException e) {
log.error("Attachment provider could not be created", e);
} catch (IllegalAccessException e) {
log.error("You may not access the attachment provider class", e);
} catch (NoRequiredPropertyException e) {
log.error("Attachment provider did not find a property that it needed: " + e.getMessage(), e);
m_provider = null; // No, it did not work.
} catch (IOException e) {
log.error("Attachment provider reports IO error", e);
m_provider = null;
}
}
