public static Hashtable VerifyAllTrueResopnses(RspList results)
{
Hashtable res = new Hashtable();
if (results == null)
return res;
Rsp rsp = null;
for (int i = 0; i < results.size(); i++)
{
rsp = (Rsp)results.elementAt(i);
if (rsp.wasSuspected())
{
throw new Alachisoft.NGroups.SuspectedException(rsp.Sender);
}
if (!rsp.wasReceived())
{
throw new Runtime.Exceptions.TimeoutException("operation timeout");
}
}
if (rsp != null)
return (Hashtable)rsp.Value;
else
return null;
}
/// <summary>
/// Find all entries in the response list that are not null and didnt timeout.
/// </summary>
/// <param name="results">response list</param>
/// <param name="type">type of response to fetch</param>
/// <returns>List of entries found</returns>
public static ArrayList GetAllNonNullRsp(RspList results, Type type)
{
ArrayList list = new ArrayList();
if (results == null)
return null;
Rsp rsp = null;
for (int i = 0; i < results.size(); i++)
{
rsp = (Rsp)results.elementAt(i);
if (rsp.wasSuspected())
{
results.removeElementAt(i);
continue;
}
if (!rsp.wasReceived())
{
results.removeElementAt(i);
continue;
}
if (rsp.Value != null && rsp.Value.GetType().Equals(type))
{
list.Add(rsp);
}
}
return list;
}
/// <summary>
/// Returns the array of keys for which Bulk operation failed.
/// </summary>
/// <param name="results">responses collected from all members of cluster.</param>
/// <returns>list of nodes where the operation succeeded</returns>
public static Hashtable FindAtomicBulkRemoveStatusReplicated(RspList results, Address local)
{
Hashtable result = null;
if (results == null) return new Hashtable();
for (int i = 0; i < results.size(); i++)
{
Rsp rsp = (Rsp)results.elementAt(i);
if (rsp.wasSuspected())
{
continue;
}
if (!rsp.wasReceived())
{
continue;
}
result = (Hashtable)rsp.Value;
if (result != null)
{
return result;
}
}
return result;
}
/// <summary>
/// Returns the set of nodes where the insertion was performed as an atomic operation.
/// </summary>
/// <param name="results">responses collected from all members of cluster.</param>
/// <returns>key and value pairs for inserted items</returns>
public static Hashtable FindAtomicBulkInsertStatusReplicated(RspList results)
{
Hashtable insertedKeys = new Hashtable();
Hashtable result = null;
Hashtable prvResult = null;
if (results == null) return insertedKeys;
for (int i = 0; i < results.size(); i++)
{
Rsp rsp = (Rsp)results.elementAt(i);
if (rsp.wasSuspected())
{
continue;
}
if (!rsp.wasReceived())
{
continue;
}
result = (Hashtable)rsp.Value;
if (prvResult == null)
{
insertedKeys = result;
prvResult = result;
}
else
{
foreach (object key in prvResult.Keys)
{
if (result.Contains(key) == false)
{
if (insertedKeys.Contains(key))
insertedKeys.Remove(key);
}
}
prvResult = result;
}
}
return insertedKeys;
}
/// <summary>
/// Find first entry in the response list that is not null and didnt timeout.
/// </summary>
/// <param name="results">response list</param>
/// <param name="type">type of response to fetch</param>
/// <returns>found entry</returns>
public static Rsp GetFirstNonNullRsp(RspList results, Type type)
{
if (results == null)
return null;
Rsp rsp = null;
for (int i = 0; i < results.size(); i++)
{
rsp = (Rsp)results.elementAt(i);
if (rsp.wasSuspected())
{
results.removeElementAt(i);
continue;
}
if (!rsp.wasReceived())
{
results.removeElementAt(i);
continue;
}
if (rsp.Value != null && rsp.Value.GetType().Equals(type)) return rsp;
}
return null;
}
/// <summary>
/// Returns the array of keys for which Bulk operation failed.
/// </summary>
/// <param name="results">responses collected from all members of cluster.</param>
/// <returns>list of nodes where the operation succeeded</returns>
public static object[] FindAtomicBulkOpStatusReplicated(RspList results, Address local)
{
Hashtable failedKeys = new Hashtable();
object[] result = null;
if (results == null) return null;
for (int i = 0; i < results.size(); i++)
{
Rsp rsp = (Rsp)results.elementAt(i);
if (rsp.wasSuspected())
{
continue;
}
if (!rsp.wasReceived())
{
continue;
}
result = (object[])rsp.Value;
for (int j = 0; j < result.Length; j++)
{
if (failedKeys.Contains(result[j]) == false)
{
failedKeys[result[j]] = result[j];
}
}
/*
if(Trace.isInfoEnabled) Trace.info("FindAtomicAddStatusReplicated", "Sender = " + rsp.Sender + ", result = " + res);
if(res != CacheAddResult.Success && res != CacheAddResult.KeyExists)
{
return res;
}
*/
}
object[] failed = new object[failedKeys.Count];
failedKeys.Keys.CopyTo(failed, 0);
return failed;
}
/// <summary>
/// Returns the set of nodes where the insertion was performed as an atomic operation.
/// </summary>
/// <param name="results">responses collected from all members of cluster.</param>
/// <returns>list of nodes where the operation succeeded</returns>
public static CacheInsResultWithEntry FindAtomicInsertStatusReplicated(RspList results)
{
int needEvictCount = 0;
int timeoutCount = 0;
int suspectedCount = 0;
int successCount = 0;
CacheInsResultWithEntry res = new CacheInsResultWithEntry();
if (results == null)
return res;
for (int i = 0; i < results.size(); i++)
{
Rsp rsp = (Rsp)results.elementAt(i);
if (!rsp.wasReceived() && !rsp.wasSuspected())
{
timeoutCount++;
continue;
}
if (rsp.wasSuspected())
{
suspectedCount++;
continue;
}
res = (CacheInsResultWithEntry)((OperationResponse)rsp.Value).SerializablePayload;
if (res.Result == CacheInsResult.Success || res.Result == CacheInsResult.SuccessOverwrite)
{
successCount++;
}
if (res.Result != CacheInsResult.Success && res.Result != CacheInsResult.SuccessOverwrite && res.Result != CacheInsResult.NeedsEviction)
{
}
/* If all the nodes in the Cluster return NeedsEviction response then we do not need to remove */
if (res.Result == CacheInsResult.NeedsEviction)
{
needEvictCount++;
}
}
if (needEvictCount == results.size())
{
//every node returned the NeedEviction; so we need not remove the item
//as data is not corrupted.
res.Result = CacheInsResult.NeedsEvictionNotRemove;
}
if (suspectedCount > 0 && successCount > 0 && (suspectedCount + successCount == results.size()))
{
//as operation is successfull on all other nodes other than suspected node(s).
}
if (timeoutCount > 0 && (timeoutCount + successCount == results.size()))
{
if (successCount > 0)
{
//operation is not succeeded on some of the nodes; therefore we throw timeout exception.
res.Result = CacheInsResult.PartialTimeout;
}
else
{
//operation timed out on all of the node; no need to rollback.
res.Result = CacheInsResult.FullTimeout;
}
}
if (timeoutCount > 0 && suspectedCount > 0)
{
if (successCount > 0)
{
//operation is not succeeded on some of the nodes; therefore we throw timeout exception.
res.Result = CacheInsResult.PartialTimeout;
}
else
{
//operation timed out on all of the node; no need to rollback.
res.Result = CacheInsResult.FullTimeout;
}
}
return res;
}
public static void ValidateResponses(RspList results, Type type, string serializationContext)
{
if (results == null) return;
//muds:
ArrayList parserExceptions = new ArrayList();
ArrayList exceptions = new ArrayList(11);
for (int i = 0; i < results.size(); i++)
{
Rsp rsp = (Rsp)results.elementAt(i);
if (rsp.wasSuspected())
{
continue;
}
if (!rsp.wasReceived())
{
continue;
}
if (rsp.Value != null)
{
object rspValue = rsp.Value;
if (rspValue is ParserException)
{
parserExceptions.Add((Exception)rspValue);
continue;
}
if (rspValue is Exception)
{
exceptions.Add((Exception)rspValue);
continue;
}
if (type != null && !rspValue.GetType().Equals(type))
{
exceptions.Add(new BadResponseException("bad response returned by group member " + rsp.Sender));
continue;
}
}
}
//muds:
//in case or partitioned caches search requests are broadcasted.
//it is possible that tag index are defined on one node but not defined on some other node.
//we will throw the exception back only if we receive exception from every node.
if (parserExceptions.Count == results.size())
{
Exception e = parserExceptions[0] as Exception;
throw e;
}
if (exceptions.Count == 1)
{
Exception e = exceptions[0] as Exception;
if (e is CacheException)
throw e;
else
throw new RemoteException((Exception)exceptions[0]);
}
else if (exceptions.Count > 0)
{
for (int i = 0; i < exceptions.Count; i++)
{
Exception e = exceptions[i] as Exception;
if (e is LockingException)
throw e;
else if (e is CacheException)
continue;
else
exceptions[i] = new RemoteException(e);
}
throw new Runtime.Exceptions.AggregateException(exceptions);
}
}
/// <summary>
/// Returns the set of nodes where the addition was performed as an atomic operation.
/// </summary>
/// <param name="results">responses collected from all members of cluster.</param>
/// <returns>list of nodes where the operation succeeded</returns>
public static bool FindAtomicAddHintReplicated(RspList results)
{
bool res = false;
if (results == null) return res;
for (int i = 0; i < results.size(); i++)
{
Rsp rsp = (Rsp)results.elementAt(i);
if (!rsp.wasReceived() || rsp.wasSuspected())
continue;
res = (bool)rsp.Value;
if (res == false)
{
return res;
}
}
return res;
}
/// <summary>
/// Returns the next enumeration data chunk from the set of chunks returned by multiple nodes
/// </summary>
/// <param name="results"></param>
/// <returns></returns>
public static EnumerationDataChunk FindAtomicEnumerationDataChunkReplicated(RspList results)
{
EnumerationDataChunk nextChunk = null;
if (results == null) return nextChunk;
for (int i = 0; i < results.size(); i++)
{
Rsp rsp = (Rsp)results.elementAt(i);
if (!rsp.wasReceived() || rsp.wasSuspected())
continue;
nextChunk = (EnumerationDataChunk)rsp.Value;
if (nextChunk != null)
{
return nextChunk;
}
}
return nextChunk;
}
public static bool FindAtomicLockStatusReplicated(RspList results, ref object lockId, ref DateTime lockDate)
{
bool res = true;
LockOptions lockInfo = null;
if (results == null) return res;
int lockAcquired = 0;
int itemNotFound = 0;
int rspReceived = results.size();
for (int i = 0; i < results.size(); i++)
{
Rsp rsp = (Rsp)results.elementAt(i);
if (rsp.wasSuspected())
{
rspReceived--;
continue;
}
if (!rsp.wasReceived())
{
rspReceived--;
continue;
}
lockInfo = (LockOptions)rsp.Value;
if (Object.Equals(lockInfo.LockId, lockId))
{
lockDate = lockInfo.LockDate;
lockAcquired++;
}
else
{
if (lockInfo.LockId == null)
{
//item was not present on the node.
lockId = null;
lockDate = new DateTime();
itemNotFound++;
}
else
{
res = false;
lockId = lockInfo.LockId;
lockDate = lockInfo.LockDate;
break;
}
}
}
if (lockAcquired > 0 && (lockAcquired + itemNotFound == rspReceived))
{
return true;
}
else
{
return false;
}
}
public static LockOptions FindAtomicIsLockedStatusReplicated(RspList results, ref object lockId, ref DateTime lockDate)
{
LockOptions lockInfo = null;
if (results == null) return lockInfo;
for (int i = 0; i < results.size(); i++)
{
Rsp rsp = (Rsp)results.elementAt(i);
if (rsp.wasSuspected())
{
continue;
}
if (!rsp.wasReceived())
{
continue;
}
lockInfo = (LockOptions)rsp.Value;
if (lockInfo != null)
{
if (lockInfo.LockId != null) return lockInfo;
}
}
return lockInfo;
}
/// <summary>
/// Returns the set of nodes where the addition was performed as an atomic operation.
/// </summary>
/// <param name="results">responses collected from all members of cluster.</param>
/// <returns>list of nodes where the operation succeeded</returns>
public static Rsp FindAtomicRemoveStatusReplicated(RspList results, ILogger NCacheLog)
{
Rsp retRsp = null;
if (results == null) return retRsp;
int timeoutCount = 0;
int suspectedCount = 0;
int successCount = 0;
for (int i = 0; i < results.size(); i++)
{
Rsp rsp = (Rsp)results.elementAt(i);
if (!rsp.wasReceived() && !rsp.wasSuspected())
{
timeoutCount++;
continue;
}
if (rsp.wasSuspected())
{
suspectedCount++;
continue;
}
if (rsp.Value != null)
{
retRsp = rsp;
}
successCount++;
}
if (suspectedCount > 0 && successCount > 0 && (suspectedCount + successCount == results.size()))
{
//as operation is successfull on all other nodes other than suspected node(s).
return retRsp;
}
if (timeoutCount > 0 && (timeoutCount + successCount == results.size()))
{
throw new Runtime.Exceptions.TimeoutException("Operation Timeout");
}
if (timeoutCount > 0 && suspectedCount > 0)
{
throw new Runtime.Exceptions.TimeoutException("Operation Timeout");
}
return retRsp;
}
/// <summary>
/// Returns the set of nodes where the addition was performed as an atomic operation.
/// </summary>
/// <param name="results">responses collected from all members of cluster.</param>
/// <returns>list of nodes where the operation succeeded</returns>
public static CacheAddResult FindAtomicAddStatusReplicated(RspList results)
{
CacheAddResult res = CacheAddResult.Failure;
if (results == null) return res;
int timeoutCount = 0;
int suspectedCount = 0;
int successCount = 0;
for (int i = 0; i < results.size(); i++)
{
Rsp rsp = (Rsp)results.elementAt(i);
if (rsp.wasSuspected())
{
//throw new Alachisoft.NGroups.SuspectedException(rsp.Sender);
suspectedCount++;
continue;
}
if (!rsp.wasReceived() && !rsp.wasSuspected())
{
//throw new Alachisoft.NGroups.TimeoutException();
timeoutCount++;
continue;
}
res = (CacheAddResult)rsp.Value;
if (res == CacheAddResult.Success)
{
successCount++;
}
if (res != CacheAddResult.Success && res != CacheAddResult.KeyExists)
{
return res;
}
}
if (suspectedCount > 0 && successCount > 0 && (suspectedCount + successCount == results.size()))
{
//as operation is successfull on all other nodes other than suspected node(s).
return CacheAddResult.Success;
}
if (timeoutCount > 0 && (timeoutCount + successCount == results.size()))
{
if (successCount > 0)
{
//operation is not succeeded on some of the nodes; therefore we throw timeout exception.
return CacheAddResult.PartialTimeout;
}
else
{
//operation timed out on all of the node; no need to rollback.
return CacheAddResult.FullTimeout;
}
}
if (timeoutCount > 0 && suspectedCount > 0)
{
if (successCount > 0)
{
return CacheAddResult.PartialTimeout;
}
else
{
return CacheAddResult.FullTimeout;
}
}
return res;
}