common-smartgears-app/src/main/java/org/gcube/smartgears/application/manager/OnlineProvider.java

61 lines
2.3 KiB
Java

package org.gcube.smartgears.application.manager;
import java.lang.reflect.Method;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.Future;
import org.gcube.common.security.providers.SecretManagerProvider;
import org.gcube.common.security.secrets.Secret;
import org.gcube.smartgears.ApplicationManager;
import org.gcube.smartgears.ApplicationManagerProvider;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javassist.util.proxy.MethodHandler;
public class OnlineProvider extends ApplicationManagerProvider {
private static Logger logger = LoggerFactory.getLogger(OnlineProvider.class);
private Map<String, Map<String, Future<ApplicationManager>>> appManagerMap = new HashMap<String, Map<String, Future<ApplicationManager>>>();
private OnlineObserver observer = new OnlineObserver(this);
@Override
protected Future<ApplicationManager> retrieveFuture(Class<? extends ApplicationManager> applicationManagerClass) {
Secret secret = SecretManagerProvider.instance.get();
String context = secret.getContext();
logger.debug("retrieving appManager {} in context {}",applicationManagerClass.getCanonicalName(), context);
return appManagerMap.get(applicationManagerClass.getCanonicalName()).get(context);
}
@Override
protected MethodHandler getMethodHandler(Class<? extends ApplicationManager> applicationManagerClass) {
MethodHandler handler = new MethodHandler() {
@Override
public Object invoke(Object self, Method thisMethod, Method proceed, Object[] args) throws Throwable {
if (SecretManagerProvider.instance.get()==null) throw new Exception("error invoking application manager method, secret is not set in this thread");
logger.debug("applicationManagerClass is {}",applicationManagerClass.getCanonicalName());
Future<ApplicationManager> appManagerFuture = retrieveFuture(applicationManagerClass);
logger.debug("appmanager future is null? {}", appManagerFuture==null);
logger.debug("thisMethod is null? {}", thisMethod==null);
return thisMethod.invoke(appManagerFuture.get(), args);
}
};
return handler;
}
public Map<String, Map<String, Future<ApplicationManager>>> getAppmanagerMap(){
return appManagerMap;
}
@Override
protected AppManagerObserver getObserver() {
return observer;
}
}