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/*-
* ============LICENSE_START=======================================================
* ONAP : APPC
* ================================================================================
* Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Copyright (C) 2017 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.appc.metadata.impl;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
import org.onap.ccsdk.sli.core.dblib.DbLibService;
import javax.sql.rowset.CachedRowSet;
import org.onap.appc.cache.MetadataCache;
import org.onap.appc.cache.impl.MetadataCacheFactory;
import org.onap.appc.metadata.MetadataService;
import org.onap.appc.metadata.objects.DependencyModelIdentifier;
import java.sql.SQLException;
import java.util.ArrayList;
public class MetadataServiceImpl implements MetadataService {
private DbLibService dbLibService;
private static final EELFLogger logger = EELFManager.getInstance().getLogger(MetadataServiceImpl.class);
private MetadataCache<DependencyModelIdentifier, String> cache;
public MetadataServiceImpl() {
initialize();
}
private void initialize() {
cache = MetadataCacheFactory.getInstance().getMetadataCache();
// TODO initialze dbLibService
}
public void setDbLibService(DbLibService dbLibService) {
this.dbLibService = dbLibService;
}
void setCache(MetadataCache<DependencyModelIdentifier, String> cache) {
this.cache = cache;
}
@Override
public String getVnfModel(DependencyModelIdentifier modelIdentifier) {
logger.debug("Reading Vnf Model data from cache for vnfType : " + modelIdentifier.getVnfType()
+ " and catalog version : " + modelIdentifier.getCatalogVersion());
String vnfModel = cache.getObject(modelIdentifier);
if (vnfModel == null || vnfModel.length() == 0) {
logger.debug("Vnf Model not available in cache. Reading from database.");
vnfModel = readVnfModel(modelIdentifier);
if (vnfModel != null && vnfModel.length() > 0) {
logger.debug("Adding retrieved Vnf Model to cache.");
addVnfModel(modelIdentifier, vnfModel);
}
}
return vnfModel;
}
private void addVnfModel(DependencyModelIdentifier modelIdentifier, String vnfModel) {
cache.putObject(modelIdentifier, vnfModel);
}
private String readVnfModel(DependencyModelIdentifier modelIdentifier) {
logger.debug("Reading Vnf Model data from database for RESOURCE_NAME : " + modelIdentifier.getVnfType()
+ " and RESOURCE_VERSION : " + modelIdentifier.getCatalogVersion());
StringBuilder query = new StringBuilder();
String vnfModel = null;
query.append("SELECT ARTIFACT_CONTENT FROM sdnctl.ASDC_ARTIFACTS WHERE RESOURCE_NAME = ? ");
ArrayList<String> argList = new ArrayList<>();
argList.add(modelIdentifier.getVnfType());
if (modelIdentifier.getCatalogVersion() == null) {
query.append(" ORDER BY SUBSTRING_INDEX(RESOURCE_VERSION, '.', 1)*1 DESC , " +
"SUBSTRING_INDEX(SUBSTRING_INDEX(RESOURCE_VERSION, '.', 2),'.', -1) *1 DESC , " +
"SUBSTRING_INDEX(RESOURCE_VERSION, '.', -1)*1 DESC ;");
} else {
query.append("AND RESOURCE_VERSION = ? ;");
argList.add(modelIdentifier.getCatalogVersion());
}
try {
final CachedRowSet data = dbLibService.getData(query.toString(), argList, "sdnctl");
if (data.first()) {
vnfModel = data.getString("ARTIFACT_CONTENT");
if (vnfModel == null || vnfModel.isEmpty()) {
logger.error("Invalid dependency model for vnf type : " + modelIdentifier.getVnfType()
+ " and catalog version : " + modelIdentifier.getCatalogVersion());
throw new RuntimeException("Invalid or Empty VNF Model");
}
logger.debug("Retrieved Vnf Model : " + vnfModel);
} else {
logger.warn("VNF Model not found in datastore for RESOURCE_NAME : " + modelIdentifier.getVnfType()
+ " AND RESOURCE_VERSION : " + modelIdentifier.getCatalogVersion());
}
} catch (SQLException e) {
throw new RuntimeException("Database error occurred");
}
return vnfModel;
}
}
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