econ2010 proposal - "e4 flexible resources: from local file system to rest"

Eduard BartschSAP AG

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BackgroundProposed SolutionDemoNext Steps

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EditorsEditors

ProjectExplorerProjectExplorer

ProblemsViewProblemsView

Compare& MergeCompare& Merge

ERPERP& Co& CoERPERP& Co& Co

ServiceRepositoryServiceRepository

ContentManagementContentManagement

……

Both cases are about Resources as keyabstraction:

Resource is any information that can be namedResources have state (that may change over time)Resources expose uniform interface

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Hierarchic Content StructuringRather balanced and deep file/foldertrees

Content-independent StorageConcrete Well-defined APIsCollaboration Built-in

Team ProviderMerge/CompareMylyn

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Flat Content StructuringE.g. with big amount ofresources beneath a root URL

(Often) Content-aware StorageREST is Architectural Style andnot even a Network ProtocolCollaboration out of Scope

Has to be solved on top

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EditorsEditors

ProjectExplorerProjectExplorer

ProblemsViewProblemsView

Compare& MergeCompare& Merge

ERPERP& Co& CoERPERP& Co& Co

ServiceRepositoryServiceRepository

ContentManagementContentManagement

……

SemanticFile

System

Decouple Eclipse Resource Hierarchy fromREST URL hierarchySparsely mount REST resources into EclipseWorkspaceIntroduce an SPI and additional ContentProvider in order to handle

Differences between repository-specific RESTimplementationsRepository-specific and content-specific semanticsTeam & Collaboration support

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Normal Folder Source Repository

REST RepositorySemantic Folder

Resource

Subfolder

File

Subfolder

Resource

Subfolder

Resource

Resource

Resource

Resource

Resource

Subfolder

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Developer

EclipseEditor/Tool

EclipseResource

Management

ContentProviders

RESTRepository

<<works with>> <<works with>>

Resources

Codelines/Branches/Baselines

etc

Versions/Revisions

F( )«output» «input»

«represents a»

Project/Folder/

ResourceHierarchy

...Variants

SemanticFile System

Content Providers maybe nestedhave own semantics

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Default Content Provider

ContentProvider 2

ContentProvider 3

ContentProvider 1

File

Project

Folder

File

FileFile

File

File

File

Folder

Folder

Folder

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Further Discussions via Feature Request inEclipse Bugzilla:https://bugs.eclipse.org/bugs/show_bug.cgi?id=292197Prototype implementation is uploaded intoabove Bug Report.Futrther details can be found in Eclipse Wiki:http://wiki.eclipse.org/E4/Resources/Semantic_File_System

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IWorkspaceRunnable myRunnable = new IWorkspaceRunnable() {

public void run(IProgressMonitor monitor) throws CoreException {

IFolder folder = …

ISemanticFolder sfolder = (ISemanticFolder)folder.getAdapter(ISemanticFolder.class);

if ( sfolder != null ) {

sfolder.addFile(fileName, uri, 0, monitor);

}

}

};

workspace.run(myRunnable,workspace.getRoot(),0,null);