public async Task <TablePartitionsList> ListTablePartitions(string database, string tableName)
{
if (string.IsNullOrEmpty(database) || string.IsNullOrEmpty(tableName))
{
throw new Exception("database and table are required.");
}
TablePartitionsList tablePartitionsList = await Get <TablePartitionsList>(_webHcatBaseUrl, _webHCatVersion, _webHCatUserName, requestURL.ListTablePartitions(database, tableName));
return(tablePartitionsList);
}
public async void ListTablePartitionsTest()
{
TablePartitionsList tablePartitionsList = await hManager.ListTablePartitions("testing", "table1");
if (string.IsNullOrEmpty(tablePartitionsList.error))
{
Console.WriteLine(string.Format("table {0}.{1} partitions:", tablePartitionsList.database, tablePartitionsList.table));
tablePartitionsList.partitions.ForEach(p =>
{
Console.WriteLine(string.Format("Partition {0}:", p.name));
p.values.ForEach(v => Console.WriteLine(string.Format("Column: {0}, Value: {1}", v.columnName, v.columnValue)));
Task <PartitionDescribe> describeTablePartitionTask = hManager.DescribeTablePartition(tablePartitionsList.database, tablePartitionsList.table, p.name);
Task.WaitAll(describeTablePartitionTask);
var describePartition = describeTablePartitionTask.GetAwaiter().GetResult();
if (string.IsNullOrEmpty(describePartition.error))
{
Console.WriteLine(string.Format("Partition {0} Describe:", describePartition.partition));
Console.WriteLine(string.Format("Partitioned: {0}", describePartition.partitioned));
Console.WriteLine(string.Format("Output Format: {0}", describePartition.outputFormat));
Console.WriteLine(string.Format("Input Format: {0}", describePartition.inputFormat));
foreach (var column in describePartition.columns)
{
Console.WriteLine(string.Format("Column Name: {0}, Column Type: {1}", column.name, column.type));
}
}
else
{
Console.WriteLine(((Error)describePartition).ToString());
}
});
}
else
{
Console.WriteLine(((Error)tablePartitionsList).ToString());
}
}