Add MissingHeaders if no header found

[DanielBadura]

It is kinda BC-Break, as the behaviour is changing greatly.

Not sure if this is the right path, as the app could still try to load the original Header from the Message - and then it would still crash, but there we also have hasHeader so it is possible to handle it.

closes #818

[github-actions]

Hello 👋

here is the most recent benchmark result:

SplitStreamBench
================

+-------------------------+--------------------+--------------------+-----------+-----------------+------------+-------------+
|                         | time (kde mode)                                     | memory                                     |
+-------------------------+--------------------+--------------------+-----------+-----------------+------------+-------------+
| subject                 | Tag: <current>     | Tag: base          | time-diff | Tag: <current>  | Tag: base  | memory-diff |
+-------------------------+--------------------+--------------------+-----------+-----------------+------------+-------------+
| benchLoad10000Events () | 5.185ms (±0.00%)   | 5.283ms (±0.00%)   | -1.87%    | 35.650mb        | 36.167mb   | -1.43%      |
| benchSave10000Events () | 337.494ms (±0.00%) | 339.753ms (±0.00%) | -0.66%    | 35.651mb        | 35.652mb   | -0.00%      |
+-------------------------+--------------------+--------------------+-----------+-----------------+------------+-------------+

SimpleSetupStreamStoreBench
===========================

+----------------------------------------+--------------------+--------------------+-----------+-----------------+------------+-------------+
|                                        | time (kde mode)                                     | memory                                     |
+----------------------------------------+--------------------+--------------------+-----------+-----------------+------------+-------------+
| subject                                | Tag: <current>     | Tag: base          | time-diff | Tag: <current>  | Tag: base  | memory-diff |
+----------------------------------------+--------------------+--------------------+-----------+-----------------+------------+-------------+
| benchLoad1Event ()                     | 1.180ms (±0.00%)   | 1.165ms (±0.00%)   | +1.27%    | 35.206mb        | 35.206mb   | +0.00%      |
| benchLoad10000Events ()                | 72.401ms (±0.00%)  | 68.830ms (±0.00%)  | +5.19%    | 35.206mb        | 35.206mb   | +0.00%      |
| benchSave1Event ()                     | 1.406ms (±0.00%)   | 1.228ms (±0.00%)   | +14.45%   | 35.206mb        | 35.206mb   | +0.00%      |
| benchSave10000Events ()                | 299.769ms (±0.00%) | 290.929ms (±0.00%) | +3.04%    | 35.206mb        | 35.206mb   | +0.00%      |
| benchSave10000Aggregates ()            | 7.570s (±0.00%)    | 7.560s (±0.00%)    | +0.12%    | 35.206mb        | 35.206mb   | +0.00%      |
| benchSave10000AggregatesTransaction () | 4.933s (±0.00%)    | 4.882s (±0.00%)    | +1.05%    | 35.206mb        | 35.206mb   | +0.00%      |
+----------------------------------------+--------------------+--------------------+-----------+-----------------+------------+-------------+

SimpleSetupBench
================

+----------------------------------------+--------------------+--------------------+-----------+-----------------+------------+-------------+
|                                        | time (kde mode)                                     | memory                                     |
+----------------------------------------+--------------------+--------------------+-----------+-----------------+------------+-------------+
| subject                                | Tag: <current>     | Tag: base          | time-diff | Tag: <current>  | Tag: base  | memory-diff |
+----------------------------------------+--------------------+--------------------+-----------+-----------------+------------+-------------+
| benchLoad1Event ()                     | 1.224ms (±0.00%)   | 1.029ms (±0.00%)   | +18.95%   | 34.979mb        | 34.979mb   | +0.00%      |
| benchLoad10000Events ()                | 63.167ms (±0.00%)  | 62.496ms (±0.00%)  | +1.07%    | 34.979mb        | 34.979mb   | +0.00%      |
| benchSave1Event ()                     | 1.278ms (±0.00%)   | 1.148ms (±0.00%)   | +11.32%   | 34.979mb        | 34.979mb   | +0.00%      |
| benchSave10000Events ()                | 221.795ms (±0.00%) | 224.078ms (±0.00%) | -1.02%    | 34.979mb        | 34.979mb   | +0.00%      |
| benchSave10000Aggregates ()            | 7.362s (±0.00%)    | 7.179s (±0.00%)    | +2.55%    | 34.979mb        | 34.979mb   | +0.00%      |
| benchSave10000AggregatesTransaction () | 4.743s (±0.00%)    | 4.733s (±0.00%)    | +0.20%    | 34.979mb        | 34.979mb   | +0.00%      |
+----------------------------------------+--------------------+--------------------+-----------+-----------------+------------+-------------+

SubscriptionEngineBatchBench
============================

+---------------------------+-------------------+-------------------+-----------+-----------------+------------+-------------+
|                           | time (kde mode)                                   | memory                                     |
+---------------------------+-------------------+-------------------+-----------+-----------------+------------+-------------+
| subject                   | Tag: <current>    | Tag: base         | time-diff | Tag: <current>  | Tag: base  | memory-diff |
+---------------------------+-------------------+-------------------+-----------+-----------------+------------+-------------+
| benchHandle10000Events () | 86.035ms (±0.00%) | 81.217ms (±0.00%) | +5.93%    | 35.544mb        | 35.544mb   | +0.00%      |
+---------------------------+-------------------+-------------------+-----------+-----------------+------------+-------------+

NoopSubscriptionEngineBench
===========================

+---------------------------+-------------------+-------------------+-----------+-----------------+------------+-------------+
|                           | time (kde mode)                                   | memory                                     |
+---------------------------+-------------------+-------------------+-----------+-----------------+------------+-------------+
| subject                   | Tag: <current>    | Tag: base         | time-diff | Tag: <current>  | Tag: base  | memory-diff |
+---------------------------+-------------------+-------------------+-----------+-----------------+------------+-------------+
| benchHandle10000Events () | 79.150ms (±0.00%) | 80.434ms (±0.00%) | -1.60%    | 47.560mb        | 47.560mb   | +0.00%      |
+---------------------------+-------------------+-------------------+-----------+-----------------+------------+-------------+

SubscriptionEngineBench
=======================

+---------------------------+-----------------+-----------------+-----------+-----------------+------------+-------------+
|                           | time (kde mode)                               | memory                                     |
+---------------------------+-----------------+-----------------+-----------+-----------------+------------+-------------+
| subject                   | Tag: <current>  | Tag: base       | time-diff | Tag: <current>  | Tag: base  | memory-diff |
+---------------------------+-----------------+-----------------+-----------+-----------------+------------+-------------+
| benchHandle10000Events () | 3.216s (±0.00%) | 3.208s (±0.00%) | +0.25%    | 47.560mb        | 47.560mb   | +0.00%      |
+---------------------------+-----------------+-----------------+-----------+-----------------+------------+-------------+

CommandToQueryBench
===================

+----------------+------------------+------------------+-----------+-----------------+------------+-------------+
|                | time (kde mode)                                 | memory                                     |
+----------------+------------------+------------------+-----------+-----------------+------------+-------------+
| subject        | Tag: <current>   | Tag: base        | time-diff | Tag: <current>  | Tag: base  | memory-diff |
+----------------+------------------+------------------+-----------+-----------------+------------+-------------+
| benchCreate () | 2.789ms (±0.00%) | 2.550ms (±0.00%) | +9.35%    | 4.976mb         | 5.034mb    | -1.15%      |
| benchUpdate () | 4.271ms (±0.00%) | 4.212ms (±0.00%) | +1.41%    | 4.981mb         | 5.026mb    | -0.88%      |
| benchBoth ()   | 6.947ms (±0.00%) | 6.956ms (±0.00%) | -0.12%    | 5.024mb         | 5.074mb    | -0.99%      |
+----------------+------------------+------------------+-----------+-----------------+------------+-------------+

PersonalDataBench
=================

+----------------------------------------+--------------------+--------------------+-----------+-----------------+------------+-------------+
|                                        | time (kde mode)                                     | memory                                     |
+----------------------------------------+--------------------+--------------------+-----------+-----------------+------------+-------------+
| subject                                | Tag: <current>     | Tag: base          | time-diff | Tag: <current>  | Tag: base  | memory-diff |
+----------------------------------------+--------------------+--------------------+-----------+-----------------+------------+-------------+
| benchLoad1Event ()                     | 1.467ms (±0.00%)   | 1.292ms (±0.00%)   | +13.51%   | 35.585mb        | 35.585mb   | +0.00%      |
| benchLoad10000Events ()                | 94.433ms (±0.00%)  | 91.073ms (±0.00%)  | +3.69%    | 35.585mb        | 35.585mb   | +0.00%      |
| benchSave1Event ()                     | 1.876ms (±0.00%)   | 1.748ms (±0.00%)   | +7.30%    | 35.585mb        | 35.585mb   | +0.00%      |
| benchSave10000Events ()                | 252.800ms (±0.00%) | 249.092ms (±0.00%) | +1.49%    | 35.586mb        | 35.586mb   | +0.00%      |
| benchSave10000Aggregates ()            | 11.498s (±0.00%)   | 11.621s (±0.00%)   | -1.06%    | 35.585mb        | 35.585mb   | +0.00%      |
| benchSave10000AggregatesTransaction () | 8.987s (±0.00%)    | 8.928s (±0.00%)    | +0.66%    | 36.044mb        | 36.044mb   | +0.00%      |
+----------------------------------------+--------------------+--------------------+-----------+-----------------+------------+-------------+

SnapshotsBench
==============

+----------------------------------------+-------------------+-------------------+-----------+-----------------+------------+-------------+
|                                        | time (kde mode)                                   | memory                                     |
+----------------------------------------+-------------------+-------------------+-----------+-----------------+------------+-------------+
| subject                                | Tag: <current>    | Tag: base         | time-diff | Tag: <current>  | Tag: base  | memory-diff |
+----------------------------------------+-------------------+-------------------+-----------+-----------------+------------+-------------+
| benchLoad10000EventsMissingSnapshot () | 63.306ms (±0.00%) | 62.590ms (±0.00%) | +1.14%    | 35.049mb        | 35.049mb   | +0.00%      |
| benchLoad10000Events ()                | 1.105ms (±0.00%)  | 1.274ms (±0.00%)  | -13.21%   | 35.049mb        | 35.049mb   | +0.00%      |
+----------------------------------------+-------------------+-------------------+-----------+-----------------+------------+-------------+

This comment gets update everytime a new commit comes in!

[DavidBadura]

That should be optional. There are headers that are business-critical (e.g., the tenant header). if one of those isn't serialized for some reason, I think it should crash.

It would be best to be able to specify which headers are allowed to be "missing", so if a header is no longer present, you simply list it. Or you could specify * to allow all of them. Like MissingApply.

That way, it wouldn't be a breaking change.