/*******************************************************************************
* Copyright 2012-2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
* Licensed under the Apache License, Version 2.0 (the "License"). You may not use
* this file except in compliance with the License. A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file.
* This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
* *****************************************************************************
*
* AWS Tools for Windows (TM) PowerShell (TM)
*
*/
using System;
using System.Collections.Generic;
using System.Linq;
using System.Management.Automation;
using System.Text;
using Amazon.PowerShell.Common;
using Amazon.Runtime;
using Amazon.DAX;
using Amazon.DAX.Model;
namespace Amazon.PowerShell.Cmdlets.DAX
{
/// <summary>
/// Returns the detailed parameter list for a particular parameter group.<br/><br/>This cmdlet automatically pages all available results to the pipeline - parameters related to iteration are only needed if you want to manually control the paginated output. To disable autopagination, use -NoAutoIteration.
/// </summary>
[Cmdlet("Get", "DAXParameter")]
[OutputType("Amazon.DAX.Model.Parameter")]
[AWSCmdlet("Calls the Amazon DynamoDB Accelerator (DAX) DescribeParameters API operation.", Operation = new[] {"DescribeParameters"}, SelectReturnType = typeof(Amazon.DAX.Model.DescribeParametersResponse))]
[AWSCmdletOutput("Amazon.DAX.Model.Parameter or Amazon.DAX.Model.DescribeParametersResponse",
"This cmdlet returns a collection of Amazon.DAX.Model.Parameter objects.",
"The service call response (type Amazon.DAX.Model.DescribeParametersResponse) can also be referenced from properties attached to the cmdlet entry in the $AWSHistory stack."
)]
public partial class GetDAXParameterCmdlet : AmazonDAXClientCmdlet, IExecutor
{
#region Parameter ParameterGroupName
/// <summary>
/// <para>
/// <para>The name of the parameter group.</para>
/// </para>
/// </summary>
#if !MODULAR
[System.Management.Automation.Parameter(Position = 0, ValueFromPipelineByPropertyName = true, ValueFromPipeline = true)]
#else
[System.Management.Automation.Parameter(Position = 0, ValueFromPipelineByPropertyName = true, ValueFromPipeline = true, Mandatory = true)]
[System.Management.Automation.AllowEmptyString]
[System.Management.Automation.AllowNull]
#endif
[Amazon.PowerShell.Common.AWSRequiredParameter]
public System.String ParameterGroupName { get; set; }
#endregion
#region Parameter Source
/// <summary>
/// <para>
/// <para>How the parameter is defined. For example, <code>system</code> denotes a system-defined
/// parameter.</para>
/// </para>
/// </summary>
[System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
public System.String Source { get; set; }
#endregion
#region Parameter MaxResult
/// <summary>
/// <para>
/// <para>The maximum number of results to include in the response. If more results exist than
/// the specified <code>MaxResults</code> value, a token is included in the response so
/// that the remaining results can be retrieved.</para><para>The value for <code>MaxResults</code> must be between 20 and 100.</para>
/// </para>
/// <para>
/// <br/><b>Note:</b> In AWSPowerShell and AWSPowerShell.NetCore this parameter is used to limit the total number of items returned by the cmdlet.
/// <br/>In AWS.Tools this parameter is simply passed to the service to specify how many items should be returned by each service call.
/// <br/>Pipe the output of this cmdlet into Select-Object -First to terminate retrieving data pages early and control the number of items returned.
/// </para>
/// </summary>
[System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
[Alias("MaxItems","MaxResults")]
public int? MaxResult { get; set; }
#endregion
#region Parameter NextToken
/// <summary>
/// <para>
/// <para>An optional token returned from a prior request. Use this token for pagination of
/// results from this action. If this parameter is specified, the response includes only
/// results beyond the token, up to the value specified by <code>MaxResults</code>.</para>
/// </para>
/// <para>
/// <br/><b>Note:</b> This parameter is only used if you are manually controlling output pagination of the service API call.
/// <br/>In order to manually control output pagination, use '-NextToken $null' for the first call and '-NextToken $AWSHistory.LastServiceResponse.NextToken' for subsequent calls.
/// </para>
/// </summary>
[System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
public System.String NextToken { get; set; }
#endregion
#region Parameter Select
/// <summary>
/// Use the -Select parameter to control the cmdlet output. The default value is 'Parameters'.
/// Specifying -Select '*' will result in the cmdlet returning the whole service response (Amazon.DAX.Model.DescribeParametersResponse).
/// Specifying the name of a property of type Amazon.DAX.Model.DescribeParametersResponse will result in that property being returned.
/// Specifying -Select '^ParameterName' will result in the cmdlet returning the selected cmdlet parameter value.
/// </summary>
[System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
public string Select { get; set; } = "Parameters";
#endregion
#region Parameter PassThru
/// <summary>
/// Changes the cmdlet behavior to return the value passed to the ParameterGroupName parameter.
/// The -PassThru parameter is deprecated, use -Select '^ParameterGroupName' instead. This parameter will be removed in a future version.
/// </summary>
[System.Obsolete("The -PassThru parameter is deprecated, use -Select '^ParameterGroupName' instead. This parameter will be removed in a future version.")]
[System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
public SwitchParameter PassThru { get; set; }
#endregion
#region Parameter NoAutoIteration
/// <summary>
/// By default the cmdlet will auto-iterate and retrieve all results to the pipeline by performing multiple
/// service calls. If set, the cmdlet will retrieve only the next 'page' of results using the value of NextToken
/// as the start point.
/// </summary>
[System.Management.Automation.Parameter(ValueFromPipelineByPropertyName = true)]
public SwitchParameter NoAutoIteration { get; set; }
#endregion
protected override void ProcessRecord()
{
this._AWSSignerType = "v4";
base.ProcessRecord();
var context = new CmdletContext();
// allow for manipulation of parameters prior to loading into context
PreExecutionContextLoad(context);
#pragma warning disable CS0618, CS0612 //A class member was marked with the Obsolete attribute
if (ParameterWasBound(nameof(this.Select)))
{
context.Select = CreateSelectDelegate<Amazon.DAX.Model.DescribeParametersResponse, GetDAXParameterCmdlet>(Select) ??
throw new System.ArgumentException("Invalid value for -Select parameter.", nameof(this.Select));
if (this.PassThru.IsPresent)
{
throw new System.ArgumentException("-PassThru cannot be used when -Select is specified.", nameof(this.Select));
}
}
else if (this.PassThru.IsPresent)
{
context.Select = (response, cmdlet) => this.ParameterGroupName;
}
#pragma warning restore CS0618, CS0612 //A class member was marked with the Obsolete attribute
context.MaxResult = this.MaxResult;
#if !MODULAR
if (ParameterWasBound(nameof(this.MaxResult)) && this.MaxResult.HasValue)
{
WriteWarning("AWSPowerShell and AWSPowerShell.NetCore use the MaxResult parameter to limit the total number of items returned by the cmdlet." +
" This behavior is obsolete and will be removed in a future version of these modules. Pipe the output of this cmdlet into Select-Object -First to terminate" +
" retrieving data pages early and control the number of items returned. AWS.Tools already implements the new behavior of simply passing MaxResult" +
" to the service to specify how many items should be returned by each service call.");
}
#endif
context.NextToken = this.NextToken;
context.ParameterGroupName = this.ParameterGroupName;
#if MODULAR
if (this.ParameterGroupName == null && ParameterWasBound(nameof(this.ParameterGroupName)))
{
WriteWarning("You are passing $null as a value for parameter ParameterGroupName which is marked as required. In case you believe this parameter was incorrectly marked as required, report this by opening an issue at https://github.com/aws/aws-tools-for-powershell/issues.");
}
#endif
context.Source = this.Source;
// allow further manipulation of loaded context prior to processing
PostExecutionContextLoad(context);
var output = Execute(context) as CmdletOutput;
ProcessOutput(output);
}
#region IExecutor Members
#if MODULAR
public object Execute(ExecutorContext context)
{
var cmdletContext = context as CmdletContext;
#pragma warning disable CS0618, CS0612 //A class member was marked with the Obsolete attribute
var useParameterSelect = this.Select.StartsWith("^") || this.PassThru.IsPresent;
#pragma warning restore CS0618, CS0612 //A class member was marked with the Obsolete attribute
// create request and set iteration invariants
var request = new Amazon.DAX.Model.DescribeParametersRequest();
if (cmdletContext.MaxResult != null)
{
request.MaxResults = AutoIterationHelpers.ConvertEmitLimitToServiceTypeInt32(cmdletContext.MaxResult.Value);
}
if (cmdletContext.ParameterGroupName != null)
{
request.ParameterGroupName = cmdletContext.ParameterGroupName;
}
if (cmdletContext.Source != null)
{
request.Source = cmdletContext.Source;
}
// Initialize loop variant and commence piping
var _nextToken = cmdletContext.NextToken;
var _userControllingPaging = this.NoAutoIteration.IsPresent || ParameterWasBound(nameof(this.NextToken));
var client = Client ?? CreateClient(_CurrentCredentials, _RegionEndpoint);
do
{
request.NextToken = _nextToken;
CmdletOutput output;
try
{
var response = CallAWSServiceOperation(client, request);
object pipelineOutput = null;
if (!useParameterSelect)
{
pipelineOutput = cmdletContext.Select(response, this);
}
output = new CmdletOutput
{
PipelineOutput = pipelineOutput,
ServiceResponse = response
};
_nextToken = response.NextToken;
}
catch (Exception e)
{
output = new CmdletOutput { ErrorResponse = e };
}
ProcessOutput(output);
} while (!_userControllingPaging && AutoIterationHelpers.HasValue(_nextToken));
if (useParameterSelect)
{
WriteObject(cmdletContext.Select(null, this));
}
return null;
}
#else
public object Execute(ExecutorContext context)
{
var cmdletContext = context as CmdletContext;
var useParameterSelect = this.Select.StartsWith("^") || this.PassThru.IsPresent;
// create request and set iteration invariants
var request = new Amazon.DAX.Model.DescribeParametersRequest();
if (cmdletContext.ParameterGroupName != null)
{
request.ParameterGroupName = cmdletContext.ParameterGroupName;
}
if (cmdletContext.Source != null)
{
request.Source = cmdletContext.Source;
}
// Initialize loop variants and commence piping
System.String _nextToken = null;
int? _emitLimit = null;
int _retrievedSoFar = 0;
if (AutoIterationHelpers.HasValue(cmdletContext.NextToken))
{
_nextToken = cmdletContext.NextToken;
}
if (cmdletContext.MaxResult.HasValue)
{
_emitLimit = cmdletContext.MaxResult;
}
var _userControllingPaging = this.NoAutoIteration.IsPresent || ParameterWasBound(nameof(this.NextToken));
var client = Client ?? CreateClient(_CurrentCredentials, _RegionEndpoint);
do
{
request.NextToken = _nextToken;
if (_emitLimit.HasValue)
{
request.MaxResults = AutoIterationHelpers.ConvertEmitLimitToInt32(_emitLimit.Value);
}
CmdletOutput output;
try
{
var response = CallAWSServiceOperation(client, request);
object pipelineOutput = null;
if (!useParameterSelect)
{
pipelineOutput = cmdletContext.Select(response, this);
}
output = new CmdletOutput
{
PipelineOutput = pipelineOutput,
ServiceResponse = response
};
int _receivedThisCall = response.Parameters.Count;
_nextToken = response.NextToken;
_retrievedSoFar += _receivedThisCall;
if (_emitLimit.HasValue)
{
_emitLimit -= _receivedThisCall;
}
}
catch (Exception e)
{
if (_retrievedSoFar == 0 || !_emitLimit.HasValue)
{
output = new CmdletOutput { ErrorResponse = e };
}
else
{
break;
}
}
ProcessOutput(output);
} while (!_userControllingPaging && AutoIterationHelpers.HasValue(_nextToken) && (!_emitLimit.HasValue || _emitLimit.Value >= 1));
if (useParameterSelect)
{
WriteObject(cmdletContext.Select(null, this));
}
return null;
}
#endif
public ExecutorContext CreateContext()
{
return new CmdletContext();
}
#endregion
#region AWS Service Operation Call
private Amazon.DAX.Model.DescribeParametersResponse CallAWSServiceOperation(IAmazonDAX client, Amazon.DAX.Model.DescribeParametersRequest request)
{
Utils.Common.WriteVerboseEndpointMessage(this, client.Config, "Amazon DynamoDB Accelerator (DAX)", "DescribeParameters");
try
{
#if DESKTOP
return client.DescribeParameters(request);
#elif CORECLR
return client.DescribeParametersAsync(request).GetAwaiter().GetResult();
#else
#error "Unknown build edition"
#endif
}
catch (AmazonServiceException exc)
{
var webException = exc.InnerException as System.Net.WebException;
if (webException != null)
{
throw new Exception(Utils.Common.FormatNameResolutionFailureMessage(client.Config, webException.Message), webException);
}
throw;
}
}
#endregion
internal partial class CmdletContext : ExecutorContext
{
public int? MaxResult { get; set; }
public System.String NextToken { get; set; }
public System.String ParameterGroupName { get; set; }
public System.String Source { get; set; }
public System.Func<Amazon.DAX.Model.DescribeParametersResponse, GetDAXParameterCmdlet, object> Select { get; set; } =
(response, cmdlet) => response.Parameters;
}
}
}