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/**
* ============LICENSE_START===================================================
* Copyright (c) 2018 Amdocs
* ============================================================================
* 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.
* ============LICENSE_END=====================================================
*/
package org.onap.aai.validation.reader;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.ServiceConfigurationError;
import org.eclipse.persistence.internal.oxm.mappings.Descriptor;
import org.eclipse.persistence.jaxb.dynamic.DynamicJAXBContext;
import org.onap.aai.nodes.NodeIngestor;
import org.onap.aai.setup.SchemaVersion;
import org.onap.aai.validation.exception.ValidationServiceError;
import org.onap.aai.validation.exception.ValidationServiceException;
import org.onap.aai.validation.util.StringUtils;
/**
* Reads the primary keys of a specific OXM resource (identified by version).
*/
public class OxmReader {
private NodeIngestor nodeIngestor;
private SchemaVersion version;
private Map<String, List<String>> primaryKeysMap = new HashMap<>();
public OxmReader(NodeIngestor nodeIngestor, SchemaVersion version) {
this.nodeIngestor = nodeIngestor;
this.version = version;
}
/**
* Get the primary keys for a given entity type.
*
* @param entityType the name of the entity type
* @return the primary keys for the entity type
* @throws ValidationServiceException
*/
public List<String> getPrimaryKeys(String entityType) throws ValidationServiceException {
if (primaryKeysMap.isEmpty()) {
throw new ValidationServiceException(ValidationServiceError.OXM_MISSING_KEY, entityType);
}
List<String> primaryKeys = primaryKeysMap.get(entityType);
return primaryKeys != null ? primaryKeys : Collections.emptyList();
}
/**
* Populate a Map of primary keys for the entity types defined in the OXM.<br>
* The primary keys are keyed by the Default Root Element.
*/
public void init() {
for (Descriptor<?, ?, ?, ?, ?, ?, ?, ?, ?, ?> descriptor : getObjectDescriptors()) {
if (!descriptor.getPrimaryKeyFieldNames().isEmpty()) {
primaryKeysMap.put(descriptor.getDefaultRootElement(),
StringUtils.stripSuffix(descriptor.getPrimaryKeyFieldNames(), "/text()"));
}
}
}
/**
* Gets a list of descriptors from the OXM. These descriptor objects contain property information about each entity
* type.
*
* @return list of descriptors
*/
@SuppressWarnings("rawtypes")
private List<Descriptor> getObjectDescriptors() {
DynamicJAXBContext dynamicJaxbContext = nodeIngestor.getContextForVersion(version);
if (dynamicJaxbContext == null) {
throw new ServiceConfigurationError("OXM Version " + version + " was not ingested.");
}
return dynamicJaxbContext.getXMLContext().getDescriptors();
}
public Map<String, List<String>> getPrimaryKeysMap() {
return primaryKeysMap;
}
}
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