com.sun.enterprise.admin.util.cache.AdminCacheUtils Maven / Gradle / Ivy
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package com.sun.enterprise.admin.util.cache;
import java.util.HashMap;
import java.util.Map;
import java.util.regex.Pattern;
import org.jvnet.hk2.annotations.Service;
/** Tooling for AdminCache {@link DataProvider} implementation.
*
* @author mmares
*/
@Service
public class AdminCacheUtils {
private static final AdminCacheUtils instance = new AdminCacheUtils();
private final Map providers = new HashMap();
private final Pattern keyPattern = Pattern.compile("([-_.a-zA-Z0-9]+/?)+");
//private final ServiceLoader dataProviderLoader = ServiceLoader.load(DataProvider.class);
private static final DataProvider[] allProviders = new DataProvider[]{
new StringDataProvider(),
new ByteArrayDataProvider(),
new CommandModelDataProvider()
};
private AdminCacheUtils() {
}
public DataProvider getProvider(final Class clazz) {
DataProvider result = providers.get(clazz);
if (result == null) {
//Use hardcoded data providers - fastest and not problematic
for (DataProvider provider : allProviders) {
if (provider.accept(clazz)) {
providers.put(clazz, provider);
return provider;
}
}
// ServiceLocator habitat = Globals.getDefaultHabitat();
// if (habitat != null) {
// List allServices = habitat.getAllServices(DataProvider.class);
// for (DataProvider provider : allServices) {
// if (provider.accept(clazz)) {
// providers.put(clazz, provider);
// return provider;
// }
// }
// }
// for (DataProvider provider : dataProviderLoader) {
// if (provider.accept(clazz)) {
// providers.put(clazz, provider);
// return provider;
// }
// }
return null;
} else {
return result;
}
}
public final boolean validateKey(final String key) {
return keyPattern.matcher(key).matches();
}
/** Return preferred {@link AdminCache}
*/
public static AdminCache getCache() {
return AdminCacheMemStore.getInstance();
}
public static AdminCacheUtils getInstance() {
return instance;
}
}