/* “Copyright 2012 Megam Systems”
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.megam.deccanplato.provider.core;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.Set;
import org.megam.deccanplato.provider.ProviderOperation;
public class DefaultCloudProviderMediator extends AbstractCloudProviderMediator {
private LinkedList<CloudOperation> orderedOps = new LinkedList<>();
public DefaultCloudProviderMediator(RequestData reqData) {
addOperation(new AccessControlOperation(reqData.getAccess().token(), this));
addOperation(new ProviderOperation(reqData.getGeneral(), this));
addOperation(new OutputOperation(reqData.getOutput(), this));
}
protected void addOperation(CloudOperation ops) {
orderedOps.add(ops);
}
@Override
public <T> SendBackResponse<T> handleRequest()
throws CloudMediatorException {
boolean shouldProceed = true;
Set<CloudOperationOutput<T>> opsOutSet = new HashSet<>();
try {
for (Iterator<CloudOperation> iter = orderedOps.iterator(); (iter
.hasNext() && shouldProceed);) {
CloudOperation singleOps = iter.next();
//System.out.println("---->"+singleOps);
CloudOperationOutput<T> opsOut = singleOps.handle();
//System.out.println("---->"+opsOut);
opsOutSet.add(opsOut);
shouldProceed = singleOps.canProceed();
}
} catch (CloudOperationException coe) {
throw new CloudMediatorException("An error occurred while executing a cloud operation", coe);
}
/**
* grab all the responses from the RequestMediaOperation and stick stuff
* into the response data builder
***/
ResponseDataBuilder<T> respData = (new ResponseDataBuilder(opsOutSet));
return respData.getResponseData();
}
public void setSaveableToUse() {
}
}