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/**
* ============LICENSE_START=======================================================
* org.onap.aai
* ================================================================================
* Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
* Copyright © 2017-2018 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.schema;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.NoSuchElementException;
import java.util.concurrent.ConcurrentHashMap;
import javax.ws.rs.core.Response.Status;
import org.eclipse.persistence.jaxb.dynamic.DynamicJAXBContext;
import org.onap.aai.cl.eelf.LoggerFactory;
import org.onap.aai.logging.RouterCoreMsgs;
import org.onap.aai.util.ExternalOxmModelProcessor;
import org.onap.aai.nodes.NodeIngestor;
import org.onap.aai.setup.ConfigTranslator;
import org.onap.aai.setup.SchemaLocationsBean;
import org.onap.aai.setup.SchemaVersion;
import org.onap.aai.setup.SchemaVersions;
import org.onap.aai.setup.AAIConfigTranslator;
public class OxmModelLoader {
private static Map<String, DynamicJAXBContext> versionContextMap = new ConcurrentHashMap<>();
private static List<ExternalOxmModelProcessor> oxmModelProcessorRegistry = new ArrayList<>();
private static final org.onap.aai.cl.api.Logger logger =
LoggerFactory.getInstance().getLogger(OxmModelLoader.class.getName());
private OxmModelLoader() {
throw new IllegalStateException("Utility class");
}
public static synchronized void loadModels(SchemaVersions schemaVersions, SchemaLocationsBean schemaLocationsBean) {
ConfigTranslator configTranslator = new AAIConfigTranslator(schemaLocationsBean, schemaVersions);
NodeIngestor nodeIngestor = new NodeIngestor(configTranslator);
for (SchemaVersion oxmVersion : schemaVersions.getVersions()) {
DynamicJAXBContext jaxbContext = nodeIngestor.getContextForVersion(oxmVersion);
if (jaxbContext != null) {
loadModel(oxmVersion.toString(), jaxbContext);
}
}
}
public static DynamicJAXBContext getContextForVersion(String version, SchemaVersions schemaVersions, SchemaLocationsBean schemaLocationsBean) {
if (versionContextMap == null || versionContextMap.isEmpty()) {
loadModels(schemaVersions, schemaLocationsBean);
} else if (!versionContextMap.containsKey(version)) {
throw new NoSuchElementException(Status.NOT_FOUND.toString());
}
return versionContextMap.get(version);
}
public static synchronized void registerExternalOxmModelProcessors(
Collection<ExternalOxmModelProcessor> processors) {
if (processors != null) {
for (ExternalOxmModelProcessor processor : processors) {
if (!oxmModelProcessorRegistry.contains(processor)) {
oxmModelProcessorRegistry.add(processor);
}
}
}
}
public static Map<String, DynamicJAXBContext> getVersionContextMap() {
return versionContextMap;
}
private static synchronized void loadModel(String oxmVersion, DynamicJAXBContext jaxbContext) {
versionContextMap.put(oxmVersion, jaxbContext);
if (oxmModelProcessorRegistry != null) {
for (ExternalOxmModelProcessor processor : oxmModelProcessorRegistry) {
processor.onOxmVersionChange(org.onap.aai.util.Version.valueOf(oxmVersion.toLowerCase()),
jaxbContext);
}
}
logger.info(RouterCoreMsgs.LOADED_OXM_FILE, oxmVersion);
}
}
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