/**
* Creation of a new file based cache controller using a supplied configuration model and cache
* layout resolver.
*
* @param model the cache system confiuguration model
*/
public DefaultCacheHandler(CacheModel model, Logger logger) throws IOException {
super();
m_model = model;
m_logger = logger;
m_zipCache = new ZipCache();
m_resourceHosts = new TreeMap();
LayoutRegistryModel layoutModel = model.getLayoutRegistryModel();
m_registry = new DefaultLayoutRegistry(layoutModel, logger);
LayoutModel layout = model.getLayoutModel();
try {
String key = layout.getID();
m_resolver = m_registry.getLayout(key);
} catch (Throwable e) {
final String error =
"Cannot construct cache handler due to a cache layout resolvution failure.";
throw new TransitException(error, e);
}
if (getLogger().isTraceEnabled()) {
getLogger().trace("cache initialization");
}
//
// For all of the declared host models we check for hosts that do not
// declare a plugin uri. If no plugin uri is declared we are dealing with
// a classic resource host that serves as a bootstrap host. Leter on the
// SecuredTransitContext will initialize this instance and we will continue
// with host loading for plugin based resource hosts.
//
HostModel[] hosts = model.getHostModels();
if (getLogger().isTraceEnabled()) {
getLogger().trace("host count: " + hosts.length);
}
for (int i = 0; i < hosts.length; i++) {
HostModel host = hosts[i];
String id = host.getID();
ResourceHost handler = createDefaultResourceHost(host);
m_resourceHosts.put(id, handler);
}
//
// setup the cache directory
//
File cache = model.getCacheDirectory();
setLocalCacheDirectory(cache);
if (getLogger().isTraceEnabled()) {
getLogger().trace("bootstrap initialization complete");
}
}