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/*
* ============LICENSE_START=======================================================
* Copyright (C) 2021 Nordix Foundation
* ================================================================================
* 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.cps.ncmp.api.impl.operations;
import static org.onap.cps.ncmp.api.impl.operations.RequiredDmiService.MODEL;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.gson.JsonArray;
import com.google.gson.JsonObject;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.onap.cps.ncmp.api.impl.client.DmiRestClient;
import org.onap.cps.ncmp.api.impl.config.NcmpConfiguration;
import org.onap.cps.ncmp.api.models.PersistenceCmHandle;
import org.onap.cps.ncmp.api.models.YangResource;
import org.onap.cps.spi.model.ModuleReference;
import org.springframework.http.HttpHeaders;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Component;
@Component
public class DmiModelOperations extends DmiOperations {
/**
* Constructor for {@code DmiOperations}. This method also manipulates url properties.
*
* @param dmiRestClient {@code DmiRestClient}
*/
public DmiModelOperations(final PersistenceCmHandleRetriever cmHandlePropertiesRetriever,
final ObjectMapper objectMapper,
final NcmpConfiguration.DmiProperties dmiProperties,
final DmiRestClient dmiRestClient) {
super(cmHandlePropertiesRetriever, objectMapper, dmiProperties, dmiRestClient);
}
/**
* Retrieves module references.
*
* @param persistenceCmHandle the persistence cm handle
* @return module references
*/
public List<ModuleReference> getModuleReferences(final PersistenceCmHandle persistenceCmHandle) {
final DmiRequestBody dmiRequestBody = DmiRequestBody.builder()
.build();
dmiRequestBody.asCmHandleProperties(persistenceCmHandle.getAdditionalProperties());
final ResponseEntity<Object> dmiFetchModulesResponseEntity = getResourceFromDmiWithJsonData(
persistenceCmHandle.resolveDmiServiceName(MODEL),
getDmiRequestBodyAsString(dmiRequestBody), persistenceCmHandle.getId(), "modules");
return toModuleReferences((Map) dmiFetchModulesResponseEntity.getBody());
}
/**
* Retrieve yang resources from dmi for any modules that CPS-NCMP hasn't cached before.
*
* @param persistenceCmHandle the persistenceCmHandle
* @param unknownModuleReferences the unknown module references
* @return yang resources as map of module name to yang(re)source
*/
public Map<String, String> getNewYangResourcesFromDmi(final PersistenceCmHandle persistenceCmHandle,
final List<ModuleReference> unknownModuleReferences) {
final String jsonDataWithDataAndCmHandleProperties = getRequestBodyToFetchYangResources(
unknownModuleReferences, persistenceCmHandle.getAdditionalProperties());
final ResponseEntity<Object> responseEntity = getResourceFromDmiWithJsonData(
persistenceCmHandle.resolveDmiServiceName(MODEL),
jsonDataWithDataAndCmHandleProperties,
persistenceCmHandle.getId(),
"moduleResources");
return asModuleNameToYangResourceMap(responseEntity);
}
/**
* Get resources from DMI for modules.
*
* @param dmiServiceName dmi service name
* @param jsonData module names and revisions as JSON
* @param cmHandle cmHandle
* @param resourceName name of the resource(s)
* @return {@code ResponseEntity} response entity
*/
private ResponseEntity<Object> getResourceFromDmiWithJsonData(final String dmiServiceName,
final String jsonData,
final String cmHandle,
final String resourceName) {
final String dmiResourceDataUrl = getDmiResourceUrl(dmiServiceName, cmHandle, resourceName);
return dmiRestClient.postOperationWithJsonData(dmiResourceDataUrl, jsonData, new HttpHeaders());
}
private static String getRequestBodyToFetchYangResources(final List<ModuleReference> unknownModuleReferences,
final List<PersistenceCmHandle.AdditionalProperty> cmHandleProperties) {
final JsonArray moduleReferencesAsJson = getModuleReferencesAsJson(unknownModuleReferences);
final JsonObject data = new JsonObject();
data.add("modules", moduleReferencesAsJson);
final JsonObject jsonRequestObject = new JsonObject();
jsonRequestObject.add("data", data);
jsonRequestObject.add("cmHandleProperties", toJsonObject(cmHandleProperties));
return jsonRequestObject.toString();
}
private static JsonArray getModuleReferencesAsJson(final List<ModuleReference> unknownModuleReferences) {
final JsonArray moduleReferences = new JsonArray();
for (final ModuleReference moduleReference : unknownModuleReferences) {
final JsonObject moduleReferenceAsJson = new JsonObject();
moduleReferenceAsJson.addProperty("name", moduleReference.getModuleName());
moduleReferenceAsJson.addProperty("revision", moduleReference.getRevision());
moduleReferences.add(moduleReferenceAsJson);
}
return moduleReferences;
}
private static JsonObject toJsonObject(final List<PersistenceCmHandle.AdditionalProperty> cmHandleProperties) {
final JsonObject asJsonObject = new JsonObject();
for (final PersistenceCmHandle.AdditionalProperty additionalProperty : cmHandleProperties) {
asJsonObject.addProperty(additionalProperty.getName(), additionalProperty.getValue());
}
return asJsonObject;
}
private List<ModuleReference> toModuleReferences(final Map dmiFetchModulesResponseAsMap) {
final List<ModuleReference> moduleReferences = new ArrayList<>();
if (dmiFetchModulesResponseAsMap != null) {
final List moduleReferencesAsList = (List) dmiFetchModulesResponseAsMap.get("schemas");
if (moduleReferencesAsList != null) {
moduleReferencesAsList.forEach(moduleReferenceAsMap -> {
final ModuleReference moduleReference =
objectMapper.convertValue(moduleReferenceAsMap, ModuleReference.class);
moduleReferences.add(moduleReference);
});
}
}
return moduleReferences;
}
private Map<String, String> asModuleNameToYangResourceMap(final ResponseEntity<Object> responseEntity) {
final Map<String, String> yangResourcesModuleNameToContentMap = new HashMap<>();
final List<Map<String, String>> yangResourcesAsList = (List) responseEntity.getBody();
if (yangResourcesAsList != null) {
yangResourcesAsList.forEach(yangResourceAsMap -> {
final YangResource yangResource =
objectMapper.convertValue(yangResourceAsMap, YangResource.class);
yangResourcesModuleNameToContentMap.put(yangResource.getModuleName(),
yangResource.getYangSource());
});
}
return yangResourcesModuleNameToContentMap;
}
}
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