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/*
* This file is part of ETL-Processor
*
* Copyright (c) 2023 Comprehensive Cancer Center Mainfranken
* Copyright (c) 2026 Paul-Christian Volkmer, Datenintegrationszentrum Philipps-Universität Marburg and Contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package dev.dnpm.etl.processor.consent;
import dev.dnpm.etl.processor.config.AppFhirConfig;
import dev.dnpm.etl.processor.config.GIcsConfigProperties;
import java.net.URISyntaxException;
import java.util.Date;
import org.apache.hc.core5.net.URIBuilder;
import org.hl7.fhir.r4.model.Bundle;
import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;
import org.slf4j.LoggerFactory;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.retry.TerminatedRetryException;
import org.springframework.retry.support.RetryTemplate;
import org.springframework.web.client.RestClientException;
import org.springframework.web.client.RestTemplate;
/**
* Service to request Broad Consent only from remote gICS installation using REST/HTTP GET request
*
* @since 0.12
*/
@NullMarked
public class GicsGetBroadConsentService extends AbstractConsentService {
private final RetryTemplate retryTemplate;
private final RestTemplate restTemplate;
private final GIcsConfigProperties gIcsConfigProperties;
public GicsGetBroadConsentService(
GIcsConfigProperties gIcsConfigProperties,
RetryTemplate retryTemplate,
RestTemplate restTemplate,
AppFhirConfig appFhirConfig) {
super(appFhirConfig.fhirContext(), LoggerFactory.getLogger(GicsGetBroadConsentService.class));
this.retryTemplate = retryTemplate;
this.restTemplate = restTemplate;
this.gIcsConfigProperties = gIcsConfigProperties;
if (null == this.gIcsConfigProperties.getUri()) {
throw new IllegalStateException("Missing gICS URI configuration");
}
log.info("GicsGetBroadConsentService initialized...");
}
@Override
public TtpConsentStatus getTtpBroadConsentStatus(String personIdentifierValue) {
var consentStatusResponse =
requestResponse(
personIdentifierValue, this.gIcsConfigProperties.getBroadConsentDomainName());
return evaluateConsentResponse(consentStatusResponse);
}
@Override
public Bundle getConsent(
String personIdentifierValue, Date requestDate, ConsentDomain consentDomain) {
return fhirContext
.newJsonParser()
.parseResource(
Bundle.class,
requestResponse(
personIdentifierValue, gIcsConfigProperties.getBroadConsentDomainName()));
}
@Nullable
private String requestResponse(String personIdentifierValue, String consentDomain) {
if (null == this.gIcsConfigProperties.getUri()) {
throw new IllegalStateException("Missing gICS URI configuration");
}
final var patientIdentifierQueryValue =
"%s|%s"
.formatted(
this.gIcsConfigProperties.getPersonIdentifierSystem(), personIdentifierValue);
try {
final var uri =
new URIBuilder(gIcsConfigProperties.getUri())
.appendPathSegments("Consent")
.addParameter("domain:identifier", consentDomain)
.addParameter(
"category",
"http://fhir.de/ConsentManagement/CodeSystem/ResultType|consent-status")
.addParameter("patient.identifier", patientIdentifierQueryValue)
.build();
final var requestHeaders = new HttpHeaders();
if (null != gIcsConfigProperties.getUsername()
&& null != gIcsConfigProperties.getPassword()
&& !gIcsConfigProperties.getUsername().isBlank()
&& !gIcsConfigProperties.getPassword().isBlank()) {
requestHeaders.setBasicAuth(
gIcsConfigProperties.getUsername(), gIcsConfigProperties.getPassword());
}
final var response =
this.retryTemplate.execute(
retryContext ->
this.restTemplate.exchange(
uri, HttpMethod.GET, new HttpEntity<>(requestHeaders), String.class));
if (response.getStatusCode().is2xxSuccessful()) {
return response.getBody();
} else {
var msg =
String.format(
"Trusted party system reached but request failed! code: '%s' response: '%s'",
response.getStatusCode(), response.getBody());
log.error(msg);
return null;
}
} catch (RestClientException e) {
var msg = String.format("Get consents status request failed reason: '%s", e.getMessage());
log.error(msg);
return null;
} catch (TerminatedRetryException terminatedRetryException) {
var msg =
String.format(
"Get consents status process has been terminated. termination reason: '%s",
terminatedRetryException.getMessage());
log.error(msg);
return null;
} catch (URISyntaxException e) {
var msg = String.format("Invalid URI for consents status request: '%s", e.getMessage());
log.error(msg);
return null;
}
}
@Override
protected TtpConsentStatus evaluateConsentResponse(@Nullable String consentStatusResponse) {
return MiiBroadConsentEvaluator.evaluate(this.fhirContext, consentStatusResponse);
}
}
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