EtagCache Interface

[nbartels]

We to provide a EtagCache interface, because every user should be able to create hers own implementation. The current EtagCache implementation (SoftHashMap) is the default.

[nbartels]

The solution we implemented works with the Supplier interface. It is possible to override the "MapSupplier" before creating the EtagWebRequestor.

Normally you can create the ETagWebRequestor simply by calling the constructor (new ETagWebRequestor());

Now, it is possible to set the supplier first and create the ETagWebRequestor afterwards with the new mp implementation. Important is that the supplier needs to implement the Map interface.

For example like this:

ETagWebRequestor.setMapSupplier(HashMap::new);
ETagWebRequestor requestor = new ETagWebRequestor();