@SneakyThrows
    private String buildMetadataGeneratorParameters(final Pair<String, String> signing, final Pair<String, String> encryption) {
        val template = samlIdPMetadataGeneratorConfigurationContext.getResourceLoader().getResource("classpath:/template-idp-metadata.xml");

        var signingCert = signing.getKey();
        signingCert = StringUtils.remove(signingCert, BEGIN_CERTIFICATE);
        signingCert = StringUtils.remove(signingCert, END_CERTIFICATE).trim();

        var encryptionCert = encryption.getKey();
        encryptionCert = StringUtils.remove(encryptionCert, BEGIN_CERTIFICATE);
        encryptionCert = StringUtils.remove(encryptionCert, END_CERTIFICATE).trim();

        try (val writer = new StringWriter()) {
            IOUtils.copy(template.getInputStream(), writer, StandardCharsets.UTF_8);
            val metadata = writer.toString()
                .replace("${entityId}", samlIdPMetadataGeneratorConfigurationContext.getEntityId())
                .replace("${scope}", samlIdPMetadataGeneratorConfigurationContext.getScope())
                .replace("${idpEndpointUrl}", getIdPEndpointUrl())
                .replace("${encryptionKey}", encryptionCert)
                .replace("${signingKey}", signingCert);

            writeMetadata(metadata);
            return metadata;
        }
    }
@ SneakyThrows private String buildMetadataGeneratorParameters ( final Pair < String , String > signing , final Pair < String , String > encryption ) { val template = samlIdPMetadataGeneratorConfigurationContext . getResourceLoader ( ) . getResource ( "classpath:/template-idp-metadata.xml" ) ; var signingCert = signing . getKey ( ) ; signingCert = StringUtils . remove ( signingCert , BEGIN_CERTIFICATE ) ; signingCert = StringUtils . remove ( signingCert , END_CERTIFICATE ) . trim ( ) ; var encryptionCert = encryption . getKey ( ) ; encryptionCert = StringUtils . remove ( encryptionCert , BEGIN_CERTIFICATE ) ; encryptionCert = StringUtils . remove ( encryptionCert , END_CERTIFICATE ) . trim ( ) ; try ( val writer = new StringWriter ( ) ) { IOUtils . copy ( template . getInputStream ( ) , writer , StandardCharsets . UTF_8 ) ; val metadata = writer . toString ( ) . replace ( "${entityId}" , samlIdPMetadataGeneratorConfigurationContext . getEntityId ( ) ) . replace ( "${scope}" , samlIdPMetadataGeneratorConfigurationContext . getScope ( ) ) . replace ( "${idpEndpointUrl}" , getIdPEndpointUrl ( ) ) . replace ( "${encryptionKey}" , encryptionCert ) . replace ( "${signingKey}" , signingCert ) ; writeMetadata ( metadata ) ; return metadata ; } }
Build metadata generator parameters by passing the encryption,
signing and back-channel certs to the parameter generator.

@param signing    the signing
@param encryption the encryption
@return the metadata