public static IEnumerable <CategoryEntity> GetCategoryList(string category = null)
{
if (_categoryList == null)
{
lock (_syncLockCategoryList)
{
if (_categoryList == null)
{
_categoryList = TableStorageHelper.RetrieveAllAsync <CategoryEntity>(Constants.TABLE_CATEGORY).Result;
if (category != null)
{
return(_categoryList.Where(c => c.PartitionKey == category)); //returning here itself b/c of UpdateCategoryListCache method
}
else
{
return(_categoryList);
}
}
}
}
if (category != null)
{
return(_categoryList.Where(c => c.PartitionKey == category));
}
else
{
return(_categoryList);
}
}
public static async Task <IList <T> > RetrieveByRangeAsync <T>(string tableName, string partitionKey, string operator1, string value1, string operator2 = null, string value2 = null) where T : ITableEntity, new()
{
CloudTable table = await TableStorageHelper.GetTableReferenceAsync(tableName);
string condition = TableQuery.CombineFilters(
TableQuery.GenerateFilterCondition("PartitionKey", QueryComparisons.Equal, partitionKey),
TableOperators.And,
TableQuery.GenerateFilterCondition("RowKey", operator1, value1)
);
if (!string.IsNullOrEmpty(operator2) || !string.IsNullOrEmpty(value2))
{
condition = TableQuery.CombineFilters(
condition,
TableOperators.And,
TableQuery.GenerateFilterCondition("RowKey", operator2, value2)
);
}
TableQuery <T> query = new TableQuery <T>().Where(condition);
return(await ExecuteRetrieveAsync <T>(table, query));
}
public static string GetNextSequence(string partitionKey, string rowKey, string padding)
{
lock (_syncLock)
{
int nextSequence = -1;
SequenceEntity entity = TableStorageHelper.RetrieveAsync <SequenceEntity>(Constants.TABLE_SEQUENCE, partitionKey, rowKey).Result;
if (entity == null)
{
nextSequence = 1;
entity = new SequenceEntity(partitionKey, rowKey);
}
else
{
nextSequence = entity.NextSequence;
}
entity.NextSequence = nextSequence + 1;
TableStorageHelper.InsertOrMergeAsync(Constants.TABLE_SEQUENCE, entity).Wait();
if (padding != null)
{
return(nextSequence.ToString(padding));
}
else
{
return(nextSequence.ToString());
}
}
}
public static async Task <IList <T> > RetrieveByPartitionKeyAsync <T>(string tableName, string partitionKey) where T : ITableEntity, new()
{
CloudTable table = await TableStorageHelper.GetTableReferenceAsync(tableName);
TableQuery <T> query = new TableQuery <T>().Where(TableQuery.GenerateFilterCondition("PartitionKey", QueryComparisons.Equal, partitionKey));
return(await ExecuteRetrieveAsync <T>(table, query));
}
public static async Task <IList <T> > RetrieveAllAsync <T>(string tableName) where T : ITableEntity, new()
{
CloudTable table = await TableStorageHelper.GetTableReferenceAsync(tableName);
TableQuery <T> query = new TableQuery <T>();
return(await ExecuteRetrieveAsync <T>(table, query));
}
public static async Task DeleteAsync <T>(string tableName, T entity) where T : ITableEntity, new()
{
CloudTable table = await TableStorageHelper.GetTableReferenceAsync(tableName);
TableOperation operation = TableOperation.Delete(entity);
await table.ExecuteAsync(operation);
}
public static async Task MergeAsync(string tableName, ITableEntity entity)
{
CloudTable table = await TableStorageHelper.GetTableReferenceAsync(tableName);
TableOperation operation = TableOperation.Merge(entity);
await table.ExecuteAsync(operation);
}
public static async Task <T> RetrieveAsync <T>(string tableName, string partitionKey, string rowKey) where T : ITableEntity, new()
{
CloudTable table = await TableStorageHelper.GetTableReferenceAsync(tableName);
TableOperation retrieveOperation = TableOperation.Retrieve <T>(partitionKey, rowKey);
TableResult result = await table.ExecuteAsync(retrieveOperation);
return((T)result.Result);
}
public static IEnumerable <UserEntity> GetUsers()
{
if (_users == null)
{
lock (_syncLockUsers)
{
if (_users == null)
{
_users = TableStorageHelper.RetrieveAllAsync <UserEntity>(Constants.TABLE_USER).Result;
return(_users); //returning here itself b/c of UpdateTagListCache method
}
}
}
return(_users);
}
public static IEnumerable <TagEntity> GetTagList()
{
if (_tagList == null)
{
lock (_syncLockTagList)
{
if (_tagList == null)
{
_tagList = TableStorageHelper.RetrieveAllAsync <TagEntity>(Constants.TABLE_TAG).Result;
return(_tagList); //returning here itself b/c of UpdateTagListCache method
}
}
}
return(_tagList);
}
public static async Task BatchAsync(string tableName, ITableEntity[] deleteEntities, ITableEntity[] insertEntities, ITableEntity[] mergeEntities)
{
if (((mergeEntities?.Length ?? 0) > 0) || ((insertEntities?.Length ?? 0) > 0) || ((deleteEntities?.Length ?? 0) > 0))
{
CloudTable table = await TableStorageHelper.GetTableReferenceAsync(tableName);
TableBatchOperation batchOperation = new TableBatchOperation();
if (deleteEntities != null)
{
for (int i = 0; i < deleteEntities.Length; i++)
{
if (deleteEntities[i] != null)
{
batchOperation.Delete(deleteEntities[i]);
}
}
}
if (insertEntities != null)
{
for (int i = 0; i < insertEntities.Length; i++)
{
if (insertEntities[i] != null)
{
batchOperation.Insert(insertEntities[i]);
}
}
}
if (mergeEntities != null)
{
for (int i = 0; i < mergeEntities.Length; i++)
{
if (mergeEntities[i] != null)
{
batchOperation.Merge(mergeEntities[i]);
}
}
}
await table.ExecuteBatchAsync(batchOperation);
}
}
public static async Task InsertBatchAsync(string tableName, params ITableEntity[] insertEntities)
{
if (((insertEntities?.Length ?? 0) > 0))
{
CloudTable table = await TableStorageHelper.GetTableReferenceAsync(tableName);
TableBatchOperation batchOperation = new TableBatchOperation();
for (int i = 0; i < insertEntities.Length; i++)
{
if (insertEntities[i] != null)
{
batchOperation.Insert(insertEntities[i]);
}
}
await table.ExecuteBatchAsync(batchOperation);
}
}
