/*
* Copyright (c) 2008-2015 EMC Corporation
* All Rights Reserved
*/
package com.emc.storageos.volumecontroller.impl.utils.attrmatchers;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.util.CollectionUtils;
import com.emc.storageos.db.client.model.StoragePool;
import com.emc.storageos.db.client.model.StringSet;
import com.emc.storageos.volumecontroller.AttributeMatcher;
import com.google.common.base.Joiner;
/**
* This matcher is for filtering the storage pool which do not support
* snapshot scheduling. storage pool copy type is used to check snapshot scheduling
*
* @author sauraa
*
*/
public class FileScheduleSnaphotMatcher extends AttributeMatcher {
private static final Logger _logger = LoggerFactory.getLogger(FileScheduleSnaphotMatcher.class);
private static final String CHECKPOINT_SCHEDULE = "checkpoint_schedule";
@Override
public List<StoragePool> matchStoragePoolsWithAttributeOn(List<StoragePool> pools, Map<String, Object> attributeMap,
StringBuffer errorMessage) {
_logger.info("FileScheduleSnaphotMatcher Started : {}", Joiner.on("\t").join(getNativeGuidFromPools(pools)));
Boolean schedule = (Boolean) attributeMap.get(Attributes.schedule_snapshots.toString());
// if snapshot scheduling is not true do not filter the pool.
if (!schedule) {
return pools;
}
List<StoragePool> matchedPools = new ArrayList<StoragePool>();
Iterator<StoragePool> poolIterator = pools.iterator();
while (poolIterator.hasNext()) {
StoragePool pool = poolIterator.next();
if (getScheduleSupportFromPool(pool)) {
matchedPools.add(pool);
}
}
if(CollectionUtils.isEmpty(matchedPools)){
errorMessage.append("No matching storage pools found for File snapshot scheduling. ");
_logger.error(errorMessage.toString());
}
_logger.info("FileScheduleSnaphotMatchern Matcher Ended : {}", Joiner.on("\t").join(getNativeGuidFromPools(matchedPools)));
return matchedPools;
}
private boolean getScheduleSupportFromPool(StoragePool pool) {
StringSet copyTypes = pool.getSupportedCopyTypes();
if (copyTypes != null) {
for (String type : copyTypes) {
if (type.equalsIgnoreCase(CHECKPOINT_SCHEDULE)) {
return true;
}
}
}
return false;
}
@Override
protected boolean isAttributeOn(Map<String, Object> attributeMap) {
return attributeMap != null && attributeMap.containsKey(Attributes.schedule_snapshots.toString());
}
}