src/cmdlets/common/SegmentHelper.ps1
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# Copyright 2018, Adam Edwards # # 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 # # http://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. ScriptClass SegmentHelper { static { const SegmentDisplayTypeName 'GraphSegmentDisplayType' function __initialize { __RegisterSegmentDisplayType } function IsValidLocationClass($itemClass) { $itemClass -in $this.GetValidLocationClasses() } function GetValidLocationClasses { @( '__Root' 'Singleton', 'EntitySet', 'EntityType', 'NavigationProperty' ) } function UriToSegments($parser, [Uri] $uri) { $graphUri = if ( $uri.IsAbsoluteUri ) { $graphRelativeUri = '' for ( $uriIndex = 2; $uriIndex -lt $uri.segments.length; $uriIndex++ ) { $graphRelativeUri += $uri.segments[$uriIndex] } $graphRelativeUri } else { $uri } $parser |=> SegmentsFromUri $graphUri } function ToPublicSegment($parser, $segment, $parentPublicSegment) { if ( $segment.decoration ) { return $segment.decoration } $Uri = $segment.ToGraphUriFromEndpoint($parser.context.connection.GraphEndpoint.Graph, $parser.context.Version) $entity = $segment.graphElement |=> GetEntity $namespace = if ( $entity ) { $entity.namespace } else {'Null' } $namespaceDelimited = $namespace + '.' $resultTypeData = $segment.graphElement.GetResultTypeData() $parentSegment = $segment.parent $entityClass = if ( $entity ) { $entity.Type } else { 'Null' } $isCollection = if ( $entity ) { $entity.typeData.IsCollection -eq $true } else { $false } # Use the return type, which for vertices is the self, but # for edges is the vertex to which the self leads $fullTypeName = if ( $resultTypeData ) { $resultTypeData.EntityTypeName } else { '' } $shortTypeName = if ( $fullTypeName.ToLower().StartsWith($namespaceDelimited.tolower()) ) { $fullTypeName.Substring($namespaceDelimited.length) } else { $fullTypeName } $parentPath = if ( $parentSegment ) { $parentSegment.ToGraphUri($null) } $relativeUri = $segment.ToGraphUri($null) $path = $::.GraphUtilities |=> ToLocationUriPath $parser.context $relativeUri $relationship = if ( $segment.isdynamic -or $entityClass -eq 'Singleton' ) { 'Data' } elseif ( $iscollection ) { 'Collection' } else { 'Direct' } $info = $this.__GetInfoField($isCollection, $segment.isDynamic, $entityClass, $false) $result = [PSCustomObject] @{ PSTypeName = $this.SegmentDisplayTypeName ParentPath = $parentPath Info = $info Relation = $relationship Collection = $isCollection Class = $entityClass Type = $shortTypeName Name = $segment.name Namespace = $namespace Uri = $Uri GraphUri = $relativeUri Path = $path FullTypeName = $fullTypeName Version = $parser.context.version Endpoint = $parser.context.connection.graphEndpoint.Graph IsDynamic = $segment.isDynamic Parent = $ParentPublicSegment Details = $segment Content = $null Preview = $null } $segment |=> Decorate $result $result } function ToPublicSegmentFromGraphItem( $parentPublicSegment, $graphItem ) { $fullTypeName = ($::.Entity |=> GetEntityTypeDataFromTypeName $parentPublicSegment.Type).EntityTypeName $typeComponents = $fullTypeName -split '\.' # Objects may actually be raw json, or even binary, depending # on callers specifying that they don't want objects, but the # raw content value from the Graph web response $Id = $graphItem | select -expandproperty id -erroraction silentlycontinue $itemId = if ( $Id ) { $Id } else { '[{0}]' -f $graphItem.Gettype().name } [PSCustomObject] @{ PSTypeName = $parentPublicSegment.pstypename ParentPath = $parentPublicSegment.Path Info = $this.__GetInfoField($false, $true, 'EntityType', $true) Relation = 'Direct' Collection = $false Class = 'EntityType' Type = $typeComponents[$typeComponents.length - 1] Name = $itemId Namespace = $parentPublicSegment.Namespace Uri = new-object Uri $parentPublicSegment.Uri, $itemId GraphUri = $::.GraphUtilities.JoinGraphUri($parentPublicSegment.GraphUri, $itemId) Path = $::.GraphUtilities.JoinFragmentUri($parentPublicSegment.path, $itemId) FullTypeName = $fullTypeName Version = $parentPublicSegment.Version Endpoint = $parentPublicSegment.Endpoint IsDynamic = $true Parent = $ParentPublicSegment Details = $null Content = $graphItem Preview = $this.__GetPreview($graphItem, $itemId) } } function AddContent($publicSegment, $content) { if ($publicSegment.content) { throw "Segment $($publicSegment.name) already has content" } if ($publicSegment.Preview) { throw "Segment $($publicSegment.name) already has a Preview" } $publicSegment.content = $content $publicSegment.Preview = $this.__GetPreview($content, $publicSegment.Name) $publicSegment.Info = $this.__GetInfoField($false, $true, 'EntityType', $true) } function __GetPreview($content, $defaultValue) { $previewProperties = $content | select Name, DisplayName, Title, FileName, Subject, Id if ( $previewProperties.Name ) { $previewProperties.Name } elseif ( $previewProperties.DisplayName ) { $previewProperties.DisplayName } elseif ( $previewProperties.Title ) { $previewProperties.Title } elseif ( $previewProperties.FileName ) { $previewProperties.FileName } elseif ( $previewProperties.Subject ) { $previewProperties.Subject } elseif ( $previewProperties.Id ) { $previewProperties.Id } else { $defaultValue } } function __GetInfoField($isCollection, $isDynamic, $entityClass, $hasContent) { $info = 0..3 $info[0] = $this.__EntityClassToSymbol($entityClass) $info[1] = if ( $isCollection ) { '*' } else { ' ' } $info[2] = if ( $hasContent ) { '+' } else { ' ' } $info[3] = if ( $this.IsValidLocationClass($entityClass ) ) { '>' } else { ' ' } $info -join '' } function __EntityClassToSymbol($entityClass) { switch ($entityClass) { 'EntityType' { 't' } 'NavigationProperty' { 'n' } 'EntitySet' { 'e' } 'Singleton' { 's' } 'Function' { 'f' } 'Action' { 'a' } 'Null' { '-' } '__Root' { '/' } default { '?' } } } function __RegisterSegmentDisplayType { remove-typedata -typename $this.SegmentDisplayTypeName -erroraction silentlycontinue $coreProperties = @('Info', 'Type', 'Preview', 'Name') $segmentDisplayTypeArguments = @{ TypeName = $this.segmentDisplayTypeName MemberType = 'NoteProperty' MemberName = 'PSTypeName' Value = $this.SegmentDisplayTypeName DefaultDisplayPropertySet = $coreProperties } Update-TypeData -force @segmentDisplayTypeArguments } } } $::.SegmentHelper |=> __initialize |