EndpointType selectOptimalEndpoint(SignedServiceMetadataType serviceMetadata) {
// List of end points contained in the signed service meta data type
List<EndpointType> endPointsForDocumentTypeIdentifier =
serviceMetadata
.getServiceMetadata()
.getServiceInformation()
.getProcessList()
.getProcess()
.get(0)
.getServiceEndpointList()
.getEndpoint();
Map<BusDoxProtocol, EndpointType> protocolsAndEndpointType =
new HashMap<BusDoxProtocol, EndpointType>();
for (EndpointType endpointType : endPointsForDocumentTypeIdentifier) {
BusDoxProtocol busDoxProtocol =
BusDoxProtocol.instanceFrom(endpointType.getTransportProfile());
protocolsAndEndpointType.put(busDoxProtocol, endpointType);
}
BusDoxProtocol preferredProtocol =
busDoxProtocolSelectionStrategy.selectOptimalProtocol(
new ArrayList<BusDoxProtocol>(protocolsAndEndpointType.keySet()));
return protocolsAndEndpointType.get(preferredProtocol);
}
/** Provides the end point data required for transmission of a message. */
@Override
public PeppolEndpointData getEndpointTransmissionData(
ParticipantId participantId, PeppolDocumentTypeId documentTypeIdentifier) {
EndpointType endpointType = getEndpointType(participantId, documentTypeIdentifier);
String transportProfile = endpointType.getTransportProfile();
String address = getEndPointUrl(endpointType);
X509Certificate x509Certificate = getX509CertificateFromEndpointType(endpointType);
try {
return new PeppolEndpointData(
new URL(address),
BusDoxProtocol.instanceFrom(transportProfile),
CommonName.valueOf(x509Certificate.getSubjectX500Principal()));
} catch (Exception e) {
throw new IllegalStateException(
"Unable to provide end point data for "
+ participantId
+ " for "
+ documentTypeIdentifier.toString());
}
}
/** Helper method, which extracts a valid X509 certificate for an end point. */
private X509Certificate getX509CertificateFromEndpointType(EndpointType endpointType) {
try {
String body = endpointType.getCertificate();
String endpointCertificate =
"-----BEGIN CERTIFICATE-----\n" + body + "\n-----END CERTIFICATE-----";
CertificateFactory certificateFactory = CertificateFactory.getInstance("X.509");
X509Certificate cert =
(X509Certificate)
certificateFactory.generateCertificate(
new ByteArrayInputStream(endpointCertificate.getBytes()));
cert.checkValidity();
return cert;
} catch (CertificateException e) {
throw new RuntimeException("Failed to get valid certificate from Endpoint data", e);
}
}
/** Helper method, which extracts the URL of the end point. */
private String getEndPointUrl(EndpointType endpointType) {
return endpointType.getEndpointReference().getAddress().getValue();
}