/// <summary>
/// Creates a table and/or fully replaces its schema.
/// </summary>
/// <param name="schema">the schema</param>
/// <returns>returns true if the table was created, false if the table already exists. In case of any other error it throws a WebException.</returns>
public async Task <bool> CreateTableAsync(TableSchema schema, RequestOptions options = null)
{
schema.ArgumentNotNull("schema");
var optionToUse = options ?? _globalRequestOptions;
return(await optionToUse.RetryPolicy.ExecuteAsync(() => CreateTableAsyncInternal(schema, optionToUse)));
}
/// <summary>
/// Creates a table and/or fully replaces its schema.
/// </summary>
/// <param name="schema">the schema</param>
/// <returns>returns true if the table was created, false if the table already exists. In case of any other error it throws a HttpRequestException.</returns>
public async Task <bool> CreateTableAsync(TableSchema schema)
{
schema.ArgumentNotNull(nameof(schema));
if (string.IsNullOrEmpty(schema.Name))
{
throw new ArgumentException("schema.Name was either null or empty!", nameof(schema));
}
using (var webResponse = await PutRequestAsync(schema.Name + "/schema", null, schema).ConfigureAwait(false))
{
if (webResponse.WebResponse.StatusCode == HttpStatusCode.Created)
{
return(true);
}
// table already exits
if (webResponse.WebResponse.StatusCode == HttpStatusCode.OK)
{
return(false);
}
throw new HttpRequestException($"Couldn't create table {schema.Name}! Response code was: {webResponse.WebResponse.StatusCode}, expected either 200 or 201! Response body was: {await webResponse.WebResponse.Content.ReadAsStringAsync().ConfigureAwait(false)}");
}
}
/// <summary>
/// Modifies a table schema.
/// If necessary it creates a new table with the given schema.
/// If something went wrong, a WebException is thrown.
/// </summary>
/// <param name="table">the table name</param>
/// <param name="schema">the schema</param>
public async Task ModifyTableSchemaAsync(string table, TableSchema schema, RequestOptions options = null)
{
table.ArgumentNotNullNorEmpty("table");
schema.ArgumentNotNull("schema");
var optionToUse = options ?? _globalRequestOptions;
await optionToUse.RetryPolicy.ExecuteAsync(() => ModifyTableSchemaAsyncInternal(table, schema, optionToUse));
}
private async Task <bool> CreateTableAsyncInternal(TableSchema schema, string alternativeEndpointBase = null)
{
schema.ArgumentNotNull("schema");
if (string.IsNullOrEmpty(schema.name))
{
throw new ArgumentException("schema.name was either null or empty!", "schema");
}
while (true)
{
IRetryPolicy retryPolicy = _retryPolicyFactory.Create();
try
{
using (HttpWebResponse webResponse = await PutRequestAsync(schema.name + "/schema", schema, alternativeEndpointBase))
{
if (webResponse.StatusCode == HttpStatusCode.Created)
{
return(true);
}
// table already exits
if (webResponse.StatusCode == HttpStatusCode.OK)
{
return(false);
}
// throw the exception otherwise
using (var output = new StreamReader(webResponse.GetResponseStream()))
{
string message = output.ReadToEnd();
throw new WebException(
string.Format(
"Couldn't create table {0}! Response code was: {1}, expected either 200 or 201! Response body was: {2}",
schema.name,
webResponse.StatusCode,
message));
}
}
}
catch (Exception e)
{
if (!retryPolicy.ShouldRetryAttempt(e))
{
throw;
}
}
}
}
/// <summary>
/// Modifies a table schema.
/// If necessary it creates a new table with the given schema.
/// If something went wrong, a HttpRequestException is thrown.
/// </summary>
/// <param name="table">the table name</param>
/// <param name="schema">the schema</param>
public async Task ModifyTableSchemaAsync(string table, TableSchema schema)
{
table.ArgumentNotNullNorEmpty(nameof(table));
schema.ArgumentNotNull(nameof(schema));
using (var webResponse = await PostRequestAsync(table + "/schema", schema).ConfigureAwait(false))
{
if (webResponse.WebResponse.StatusCode == HttpStatusCode.OK || webResponse.WebResponse.StatusCode == HttpStatusCode.Created)
{
return;
}
throw new HttpRequestException($"Couldn't modify table schema {table}! Response code was: {webResponse.WebResponse.StatusCode}, expected either 200 or 201! Response body was: {await webResponse.WebResponse.Content.ReadAsStringAsync().ConfigureAwait(false)}");
}
}
private async Task ModifyTableSchemaAsyncInternal(string table, TableSchema schema, string alternativeEndpointBase = null)
{
table.ArgumentNotNullNorEmpty("table");
schema.ArgumentNotNull("schema");
while (true)
{
IRetryPolicy retryPolicy = _retryPolicyFactory.Create();
try
{
using (HttpWebResponse webResponse = await PostRequestAsync(table + "/schema", schema, alternativeEndpointBase))
{
if (webResponse.StatusCode != HttpStatusCode.OK || webResponse.StatusCode != HttpStatusCode.Created)
{
using (var output = new StreamReader(webResponse.GetResponseStream()))
{
string message = output.ReadToEnd();
throw new WebException(
string.Format(
"Couldn't modify table {0}! Response code was: {1}, expected either 200 or 201! Response body was: {2}",
table,
webResponse.StatusCode,
message));
}
}
else
{
return;
}
}
}
catch (Exception e)
{
if (!retryPolicy.ShouldRetryAttempt(e))
{
throw;
}
}
}
}
