Multi-Profile handling using Single Servlet different URL

[duke-nuke]

Discussed in #273

^{Originally posted by duke-nuke September 17, 2024}
Hi Philip
Hope you are good,

I am working on handling multiple profile in Phase4, i am using Spring-boot project as a starting point for this, followed your guide how to handle multi profile provided in the wiki , but getting errors,

I have implemented the Interface using below code.

`public class CustomHandler implements AS4XServletHandler.IHandlerCustomizer{

private AS4XServletHandler as4XServletHandler;
public CustomHandler(AS4XServletHandler handler) {
    this.as4XServletHandler = handler;
}
@Override
public void customizeBeforeHandling(@Nonnull IRequestWebScopeWithoutResponse iRequestWebScopeWithoutResponse,
                                    @Nonnull AS4UnifiedResponse as4UnifiedResponse,
                                    @Nonnull AS4RequestHandler as4RequestHandler) {

    try {
    if(iRequestWebScopeWithoutResponse.getRequestURIDecoded().startsWith("/as4")) {
        //IAS4CryptoFactory var3 = AS4CryptoFactoryProperties.getDefaultInstance();
        //AS4CryptoFactoryProperties.createCrypto()
        AS4CryptoFactoryProperties properties = new AS4CryptoFactoryProperties(AS4CryptoFactoryProperties.readCryptoPropertiesFromFile("cef.properties"));

        Supplier<IAS4CryptoFactory> supplier = () -> properties;

        this.as4XServletHandler.setCryptoFactorySignSupplier(supplier).setCryptoFactoryCryptSupplier(supplier);
        
        //MetaAS4Manager.getProfileMgr(); not sure how to set cef profile
        as4RequestHandler.handleRequest(iRequestWebScopeWithoutResponse, as4UnifiedResponse
        );

    } else {

            as4RequestHandler.handleRequest(iRequestWebScopeWithoutResponse, as4UnifiedResponse);

    }

    }catch (Exception ex){
        throw new RuntimeException(ex);
    }
}

}
`

Set this in the ServletConfig class
hdl.setHandlerCustomizer(new CustomHandler(hdl));

but when i am processing cef message i am getting on first request i get Private key not found for key , Look like the first request is picking up the keystore of peppol profile, but the next request i picking the certificate which i am using for cef but
then it gives the following error

Caused by: com.helger.phase4.util.Phase4Exception: Error validating incoming AS4 UserMessage with the profile Peppol following errors are present: [PartyInfo/From[0]/@type must be 'urn:fdc:peppol.eu:2017:identifiers:ap' instead of 'urn:oasis:names:tc:ebcore:partyid-type:unregistered', PartyInfo/To[0]/@type must be 'urn:fdc:peppol.eu:2017:identifiers:ap' instead of 'urn:oasis:names:tc:ebcore:partyid-type:unregistered', CollaborationInfo/AgreementRef is missing]
How can i select the profile based on the incoming message and also
in the above custom implementation the values are set per request or for all the requests ? will there be any multi request issues ? if this is working at instace level?

Also by doing this will it be possible to switch between two profiles on runtime ? e.g if peppol einvoice is coming it should use peppol profile and if cef einvoice is coming then it should use CEF profile.

regards
Khurram Shahzad