Event format meta data

Picking up from the discussion at !33803 (closed)

@akraszna implemented a very nice start to handling xAOD::EventFormat metadata in athenaMT. @gemmeren Pointed out that we should adopt a uniform approach to handling EventStreamInfo and xAOD::EventFormat. This leaves some approaches:

• Write multithreaded service maintaining one shared EventStreamInfo object in a thread-safe manner.
• Maintain a xAOD::EventFormat object for each output stream.
• Something we have not yet thought of Here we choose the second, i.e. maintain a xAOD::EventFormat object for each output stream. That means the key of the xAOD::EventFormat object now is a function of the stream name. Trying to adopt the EventStreamInfo style I went for something like:

AthenaOutputStream(
    name=name,
    HelperTools=[
        CfgMgr.xAODMaker__EventFormatStreamHelperTool(
            name="EventFormatStreamHelper"
            Key='Format{}'.format(name),
        ),
    ],
)

Of course any client looking up xAOD::EventFormat by key will have to adjust for that, as you can see in the read test. How much of a nightmare will this be?

I have not yet included recording and retrieving xAOD::EventFormat though the MetaDataSvc as implemented for EventStreamInfo. Is that desirable @mnowak

As you can see by the hacky approach and the title this is still a construction site and needs cleaning up.

Thoughts?

@tsulaia

AtlasTest/DatabaseTest/AthenaPoolMultiTest/share/AthenaPoolMultiTestEventNoSplit.ref

 Py:Athena            INFO including file "AthenaPoolMultiTest/ExampleStreamConfig.py"
 PoolSvc              INFO Setting up APR FileCatalog and Streams
+OutputStreamSeq...   INFO Initializing OutputStreamSequencerSvc - package version AthenaServices-00-00-00
 Splitter1           DEBUG Property update for OutputLevel : new value = 2
 Splitter1            INFO in initialize()
 Splitter1           DEBUG input handles: 3
@@ -13,28 +14,27 @@ Splitter3           DEBUG output handles: 0
 Splitter3           DEBUG Data Deps for Splitter3
 Triggered            INFO in initialize()
 DecisionSvc          INFO Inserting stream: Stream2 with no Algs
-OutputStreamSeq...   INFO Initializing OutputStreamSequencerSvc - package version AthenaServices-00-00-00
 Stream2.Stream2...   INFO Initializing Stream2.Stream2Tool - package version AthenaServices-00-00-00
 Stream2.Stream2...   INFO Initializing Stream2.Stream2_MakeEventStreamInfo - package version OutputStreamAthenaPool-00-00-00
-Stream2              INFO Found HelperTools = PrivateToolHandleArray(['MakeEventStreamInfo/Stream2_MakeEventStreamInfo'])
+Stream2              INFO Found HelperTools = PrivateToolHandleArray(['MakeEventStreamInfo/Stream2_MakeEventStreamInfo','xAODMaker::EventFormatStreamHelperTool/Stream2_MakeEventFormat','Athena::ThinningCacheTool/ThinningCacheTool_Stream2'])
 Stream2              INFO Data output: AthenaPoolMultiTest_NoSplit2.root
 Stream2              INFO I/O reinitialization...
 DecisionSvc          INFO Inserting stream: Stream1 with no Algs
 Stream1.Stream1...   INFO Initializing Stream1.Stream1Tool - package version AthenaServices-00-00-00
 Stream1.Stream1...   INFO Initializing Stream1.Stream1_MakeEventStreamInfo - package version OutputStreamAthenaPool-00-00-00
-Stream1              INFO Found HelperTools = PrivateToolHandleArray(['MakeEventStreamInfo/Stream1_MakeEventStreamInfo'])
+Stream1              INFO Found HelperTools = PrivateToolHandleArray(['MakeEventStreamInfo/Stream1_MakeEventStreamInfo','xAODMaker::EventFormatStreamHelperTool/Stream1_MakeEventFormat','Athena::ThinningCacheTool/ThinningCacheTool_Stream1'])
 Stream1              INFO Data output: AthenaPoolMultiTest_NoSplit1.root
 Stream1              INFO I/O reinitialization...
 DecisionSvc          INFO Inserting stream: Stream3 with no Algs
 Stream3.Stream3...   INFO Initializing Stream3.Stream3Tool - package version AthenaServices-00-00-00
 Stream3.Stream3...   INFO Initializing Stream3.Stream3_MakeEventStreamInfo - package version OutputStreamAthenaPool-00-00-00
-Stream3              INFO Found HelperTools = PrivateToolHandleArray(['MakeEventStreamInfo/Stream3_MakeEventStreamInfo'])
+Stream3              INFO Found HelperTools = PrivateToolHandleArray(['MakeEventStreamInfo/Stream3_MakeEventStreamInfo','xAODMaker::EventFormatStreamHelperTool/Stream3_MakeEventFormat','Athena::ThinningCacheTool/ThinningCacheTool_Stream3'])
 Stream3              INFO Data output: AthenaPoolMultiTest_NoSplit3.root
 Stream3              INFO I/O reinitialization...
 DecisionSvc          INFO Inserting stream: StreamAll with no Algs
 StreamAll.Strea...   INFO Initializing StreamAll.StreamAllTool - package version AthenaServices-00-00-00
 StreamAll.Strea...   INFO Initializing StreamAll.StreamAll_MakeEventStreamInfo - package version OutputStreamAthenaPool-00-00-00
-StreamAll            INFO Found HelperTools = PrivateToolHandleArray(['MakeEventStreamInfo/StreamAll_MakeEventStreamInfo'])
+StreamAll            INFO Found HelperTools = PrivateToolHandleArray(['MakeEventStreamInfo/StreamAll_MakeEventStreamInfo','xAODMaker::EventFormatStreamHelperTool/StreamAll_MakeEventFormat','Athena::ThinningCacheTool/ThinningCacheTool_StreamAll'])
 StreamAll            INFO Data output: AthenaPoolMultiTest_StreamAll.root
 StreamAll            INFO I/O reinitialization...
 Splitter1           DEBUG in execute()
@@ -50,7 +50,7 @@ Splitter3            INFO L1 failed
 Triggered            INFO EventInfo event: 0 run: 0
 Triggered            INFO L1 passed
 Domain[ROOT_All]     INFO                           AthenaPoolMultiTest_StreamAll.root
-RootDatabase.open    INFO AthenaPoolMultiTest_StreamAll.root File version:61800
+RootDatabase.open    INFO AthenaPoolMultiTest_StreamAll.root File version:62200
 Splitter1           DEBUG in execute()
 Splitter1            INFO EventInfo event: 1 run: 0
 Splitter1           DEBUG Trigmask = 2
@@ -285,5 +285,6 @@ Splitter1            INFO in finalize()
 Splitter2            INFO in finalize()
 Splitter3            INFO in finalize()
 Triggered            INFO in finalize()
-ItemListSvc         DEBUG STREAM StreamAll has (7) items
+ItemListSvc         DEBUG STREAM StreamAll has (8) items
 ItemListSvc         DEBUG    - EventStreamInfo_StreamAll
+ItemListSvc         DEBUG    - xAOD::EventFormat_EventFormatStreamAll