de.gematik.refv.plugins.validation.PluginValidationResourceProvider Maven / Gradle / Ivy

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/*
Copyright (c) 2022-2024 gematik GmbH

Licensed under the Apache License, Version 2.0 (the License);
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an 'AS IS' BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package de.gematik.refv.plugins.validation;

import ca.uhn.fhir.context.FhirContext;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.dataformat.yaml.YAMLFactory;
import de.gematik.refv.commons.Profile;
import de.gematik.refv.commons.configuration.DependencyList;
import de.gematik.refv.commons.configuration.ProfileConfiguration;
import de.gematik.refv.commons.configuration.SupportedProfileVersions;
import de.gematik.refv.commons.configuration.ValidationModuleConfiguration;
import de.gematik.refv.commons.validation.BaseValidationResourceProvider;
import de.gematik.refv.commons.validation.support.CustomNpmPackageValidationSupport;
import de.gematik.refv.plugins.configuration.MalformedPackageDeclarationException;
import de.gematik.refv.plugins.configuration.PluginDefinition;
import lombok.NonNull;
import lombok.SneakyThrows;
import lombok.extern.slf4j.Slf4j;

import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.function.Function;
import java.util.stream.Collectors;

@Slf4j
public class PluginValidationResourceProvider extends BaseValidationResourceProvider {

    private static final String CONFIG_FILE = "config.yaml";
    private final Function resourceLoaderFunction;
    private final FhirContext fhirContext;
    @java.lang.SuppressWarnings({"squid:S3077"}) // Reason for usage of volatile https://stackoverflow.com/a/7855774
    private volatile ValidationModuleConfiguration cachedConfiguration;
    private final Object lockObject = new Object();

    public PluginValidationResourceProvider(Function resourceLoaderFunction, FhirContext fhirContext) {
        super(resourceLoaderFunction);
        this.resourceLoaderFunction = resourceLoaderFunction;
        this.fhirContext = fhirContext;
    }

    @Override
    @SneakyThrows
    public ValidationModuleConfiguration getConfiguration() {
        if(cachedConfiguration == null) {
            // Double-checked locking pattern, cf. https://en.wikipedia.org/wiki/Double-checked_locking#Usage_in_Java
            synchronized (lockObject) {
                if (cachedConfiguration == null) {
                    ObjectMapper mapper = new ObjectMapper(new YAMLFactory());
                    PluginDefinition pluginDefinition;
                    try (InputStream pluginDefinitionFile = getResource(CONFIG_FILE)) {
                        pluginDefinition = mapper.readValue(pluginDefinitionFile, PluginDefinition.class);
                    }
                    cachedConfiguration = createValidationModuleConfiguration(pluginDefinition);
                }
            }
        }
        return cachedConfiguration;
    }

    private ValidationModuleConfiguration createValidationModuleConfiguration(PluginDefinition pluginDefinition) throws MalformedPackageDeclarationException, IOException {
        ValidationModuleConfiguration validationModuleConfiguration = new ValidationModuleConfiguration();
        validationModuleConfiguration.setId(pluginDefinition.getId());
        validationModuleConfiguration.setAcceptedEncodings(pluginDefinition.getValidation().getAcceptedEncodings());
        validationModuleConfiguration.setAnyExtensionsAllowed(pluginDefinition.getValidation().isAnyExtensionsAllowed());
        validationModuleConfiguration.setErrorOnUnknownProfile(pluginDefinition.getValidation().isErrorOnUnknownProfile());
        validationModuleConfiguration.setVersion(pluginDefinition.getVersion());

        validationModuleConfiguration.setIgnoredCodeSystems(
                pluginDefinition.getValidation().getIgnoredCodeSystems() != null ? pluginDefinition.getValidation().getIgnoredCodeSystems() : new ArrayList<>()
        );
        validationModuleConfiguration.setIgnoredValueSets(
                pluginDefinition.getValidation().getIgnoredValueSets() != null ? pluginDefinition.getValidation().getIgnoredValueSets() : new ArrayList<>()
        );
        validationModuleConfiguration.setAcceptedEncodings(new ArrayList<>());

        List dependencies = new ArrayList<>();
        dependencies.add(pluginDefinition.getValidationFhirPackageAsFilename());
        dependencies.addAll(pluginDefinition.getValidationDependenciesAsFilenames());
        List distinctDependencies = dependencies.stream()
                .distinct()
                .collect(Collectors.toList());

        Map dependencyLists = new HashMap<>();
        DependencyList dependencyList = new DependencyList("", "", distinctDependencies, pluginDefinition.getValidation().getValidationMessageTransformations());
        dependencyLists.put(pluginDefinition.getValidation().getFhirPackage(), dependencyList);
        validationModuleConfiguration.setDependencyLists(dependencyLists);

        validationModuleConfiguration.setSupportedProfiles(getSupportedProfiles(pluginDefinition.getValidation().getFhirPackage()));

        return validationModuleConfiguration;
    }

    private Map getSupportedProfiles(@NonNull String fhirPackageName) throws IOException {
        CustomNpmPackageValidationSupport customNpmPackageValidationSupport = CustomNpmPackageValidationSupport.create(fhirContext, fhirPackageName.replace("#", "-") + ".tgz", resourceLoaderFunction);
        var allProfiles = customNpmPackageValidationSupport.getAllProfiles();
        Map supportedProfiles = new HashMap<>();
        if(allProfiles != null) {
            for (Profile definition : allProfiles) {
                ProfileConfiguration profileConfiguration = new ProfileConfiguration(List.of(fhirPackageName), null);
                Map profileVersions = new HashMap<>();
                profileVersions.put(definition.getVersion(), profileConfiguration);
                profileVersions.put("0.0.0", profileConfiguration);
                SupportedProfileVersions supportedProfileVersions = new SupportedProfileVersions(profileVersions);
                supportedProfiles.put(definition.getBaseCanonical(), supportedProfileVersions);
            }
        }
        return supportedProfiles;
    }
}