Public/Get-EdgeKvmEntry.ps1

# Copyright 2017 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License 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.

Function Get-EdgeKvmEntry {
    <#
    .SYNOPSIS
        Get (read) an entry in a Key-Value Map (KVM) in Apigee Edge.

    .DESCRIPTION
        Get (read) an entry in a Key-Value Map (KVM) in Apigee Edge.
        The organization must be CPS-enabled.

    .PARAMETER Name
        Required. The name of the specific KVM from which to retrieve.

    .PARAMETER Entry
        Required. The name of the specific entry in the KVM to retrieve.

    .PARAMETER Environment
        Optional. The environment within Apigee Edge with which the keyvalue map is
        associated. KVMs can be associated to an organization, an environment, or an API
        Proxy. If you specify neither Environment nor Proxy, the default is to resolve the name of the KVM
        in the list of organization-wide Key-Value Maps.

    .PARAMETER Proxy
        Optional. The API Proxy within Apigee Edge with which the keyvalue map is
        associated. KVMs can be associated to an organization, an environment, or an API
        Proxy. If you specify neither Environment nor Proxy, the default is to resolve the name of the KVM
        in the list of organization-wide Key-Value Maps.

    .PARAMETER Org
        Optional. The Apigee Edge organization. The default is to use the value from Set-EdgeConnection.

    .EXAMPLE
        Get-EdgeKvmEntry -Environment test -Name map1 -Entry key1

    .LINK
        Create-EdgeKvmEntry

    .FUNCTIONALITY
        ApigeeEdge
    #>


    [cmdletbinding()]
    param(
        [Parameter(Mandatory=$True)][string]$Name,
        [Parameter(Mandatory=$True)][string]$Entry,
        [string]$Environment,
        [string]$Proxy,
        [string]$Org
        )

    $Options = @{ }

    if ($PSBoundParameters['Debug']) {
        $DebugPreference = 'Continue'
        $Options.Add( 'Debug', $Debug )
    }
    if ($PSBoundParameters['Org']) {
        $Options.Add( 'Org', $Org )
    }

    if ($PSBoundParameters.ContainsKey('Environment') -and $PSBoundParameters.ContainsKey('Proxy')) {
        throw [System.ArgumentException] "You may specify only one of -Environment and -Proxy."
    }

    if (!$PSBoundParameters['Name']) {
      throw [System.ArgumentNullException] "Name", "You must specify the -Name option."
    }
    if (!$PSBoundParameters['Entry']) {
      throw [System.ArgumentNullException] "Entry", "You must specify the -Entry option."
    }

    $basepath = if ($PSBoundParameters['Environment']) {
        $(Join-Parts -Separator "/" -Parts 'e', $Environment, 'keyvaluemaps' )
    }
    elseif ($PSBoundParameters['Proxy']) {
        $(Join-Parts -Separator "/" -Parts 'apis', $Proxy, 'keyvaluemaps' )
    }
    else {
        'keyvaluemaps'
    }
    $Options.Add( 'Collection', $(Join-Parts -Separator "/" -Parts $basepath, $Name, 'entries' ) )
    $Options.Add( 'Name', $Entry )

    Write-Debug ([string]::Format("Options {0}`n", $(ConvertTo-Json $Options -Compress ) ) )

    Get-EdgeObject @Options
}