/*
* Copyright (c) 2008-2012 EMC Corporation
* All Rights Reserved
*/
package com.emc.storageos.volumecontroller.impl.plugins.metering.vnxfile.processor;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.apache.commons.httpclient.Header;
import org.apache.commons.httpclient.methods.PostMethod;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.emc.nas.vnxfile.xmlapi.ResponsePacket;
import com.emc.nas.vnxfile.xmlapi.Status;
import com.emc.nas.vnxfile.xmlapi.Vdm;
import com.emc.nas.vnxfile.xmlapi.VdmState;
import com.emc.storageos.plugins.BaseCollectionException;
import com.emc.storageos.plugins.common.domainmodel.Operation;
import com.emc.storageos.plugins.metering.vnxfile.VNXFileConstants;
import com.emc.storageos.vnx.xmlapi.VNXVdm;
import com.emc.storageos.volumecontroller.impl.plugins.metering.vnxfile.VNXFileProcessor;
/**
* VNXVDMProcessor is responsible to process the result received from XML API
* Server after getting the VNX VDM Information. This is extracts the session
* information from response packet and uses the session id in the subsequent
* requests.
*/
public class VNXVDMProcessor extends VNXFileProcessor {
/**
* Logger instance.
*/
private final Logger _logger = LoggerFactory
.getLogger(VNXVDMProcessor.class);
@Override
public void processResult(Operation operation, Object resultObj,
Map<String, Object> keyMap) throws BaseCollectionException {
final PostMethod result = (PostMethod) resultObj;
_logger.info("processing vnx info response" + resultObj);
try {
ResponsePacket responsePacket = (ResponsePacket) _unmarshaller
.unmarshal(result.getResponseBodyAsStream());
if (null != responsePacket.getPacketFault()) {
Status status = responsePacket.getPacketFault();
processErrorStatus(status, keyMap);
} else {
List<Object> queryResponse = getQueryResponse(responsePacket);
Iterator<Object> queryRespItr = queryResponse.iterator();
List<VNXVdm> vdms = new ArrayList<VNXVdm>();
while (queryRespItr.hasNext()) {
Object responseObj = queryRespItr.next();
if (responseObj instanceof Vdm) {
Vdm system = (Vdm) responseObj;
if (system.getState() == VdmState.LOADED) {
VNXVdm vdm = new VNXVdm(
system.getName(), system.getMover(), system.getVdm(), system.getState().name());
vdm.setInterfaces(system.getInterfaces().getLi());
vdms.add(vdm);
} else {
_logger.info("Ignoring VDM {} because not LOADED {}",
system.getName(), system.getState().value());
}
}
}
keyMap.put(VNXFileConstants.VDM_INFO, vdms);
// Extract session information from the response header.
Header[] headers = result
.getResponseHeaders(VNXFileConstants.CELERRA_SESSION);
if (null != headers && headers.length > 0) {
keyMap.put(VNXFileConstants.CELERRA_SESSION,
headers[0].getValue());
_logger.info("Recieved celerra session information from the Server.");
}
}
} catch (final Exception ex) {
_logger.error(
"Exception occurred while processing the vnx info response due to ",
ex);
} finally {
result.releaseConnection();
}
}
@Override
protected void setPrerequisiteObjects(List<Object> inputArgs)
throws BaseCollectionException {
}
}