/*
* 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.StoragePool;
import com.emc.nas.vnxfile.xmlapi.SystemStoragePoolData;
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.VNXStoragePool;
import com.emc.storageos.volumecontroller.impl.plugins.metering.vnxfile.VNXFileProcessor;
/**
* VNXStoragePoolProcessor is responsible to process the result received from XML API
* Server after getting the VNX Information. This is extracts the session
* information from response packet and uses the session id in the subsequent
* requests.
*/
public class VNXStoragePoolProcessor extends VNXFileProcessor {
/**
* Logger instance.
*/
private final Logger _logger = LoggerFactory
.getLogger(VNXStoragePoolProcessor.class);
@Override
public void processResult(Operation operation, Object resultObj,
Map<String, Object> keyMap) throws BaseCollectionException {
final PostMethod result = (PostMethod) resultObj;
_logger.info("processing vnx storagepool 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<VNXStoragePool> storagePools = new ArrayList<VNXStoragePool>();
while (queryRespItr.hasNext()) {
Object responseObj = queryRespItr.next();
_logger.info("{}", responseObj);
if (responseObj instanceof StoragePool) {
VNXStoragePool vnxPool = new VNXStoragePool();
StoragePool storagePool = (StoragePool) responseObj;
vnxPool.setName(storagePool.getName());
vnxPool.setPoolId(storagePool.getPool());
vnxPool.setSize(String.valueOf(storagePool.getSize()));
vnxPool.setAutoSize(String.valueOf(storagePool.getAutoSize()));
vnxPool.setVirtualProv(String.valueOf(storagePool.isVirtualProvisioning()));
vnxPool.setUsedSize(String.valueOf(storagePool.getUsedSize()));
SystemStoragePoolData data = storagePool.getSystemStoragePoolData();
if (null != data) {
String dynamic = String.valueOf(data.isDynamic());
vnxPool.setDynamic(dynamic);
}
_logger.info("VNX Pool Information {}", vnxPool.toString());
storagePools.add(vnxPool);
}
}
_logger.info("Number of StorgePools found : {}", storagePools.size());
keyMap.put(VNXFileConstants.STORAGEPOOLS, storagePools);
// 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 {
}
}