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/*
* ============LICENSE_START========================================================
* Copyright (c) 2024 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.utils;
import java.util.Map;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.onap.cps.ncmp.api.NetworkCmProxyCmHandleQueryService;
import org.springframework.stereotype.Service;
@Service
@Slf4j
@RequiredArgsConstructor
public class CmHandleIdMapper {
private final Map<String, String> alternateIdPerCmHandleId;
private final Map<String, String> cmHandleIdPerAlternateId;
private final NetworkCmProxyCmHandleQueryService networkCmProxyCmHandleQueryService;
private boolean cacheIsInitialized = false;
public String cmHandleIdToAlternateId(final String cmHandleId) {
initializeCache();
return alternateIdPerCmHandleId.get(cmHandleId);
}
public String alternateIdToCmHandleId(final String alternateId) {
initializeCache();
return cmHandleIdPerAlternateId.get(alternateId);
}
public boolean addMapping(final String cmHandleId, final String alternateId) {
initializeCache();
return addMappingWithValidation(cmHandleId, alternateId);
}
private boolean addMappingWithValidation(final String cmHandleId, final String alternateId) {
if (alternateIdPerCmHandleId.containsKey(cmHandleId)) {
final String originalAlternateId = alternateIdPerCmHandleId.get(cmHandleId);
if (!originalAlternateId.equals(alternateId)) {
log.warn("Alternate id update ignored, cannot update cm handle {}, already has an alternate id of {}",
cmHandleId, originalAlternateId);
}
return false;
}
if (StringUtils.isBlank(alternateId)) {
return false;
}
alternateIdPerCmHandleId.put(cmHandleId, alternateId);
cmHandleIdPerAlternateId.put(alternateId, cmHandleId);
return true;
}
public void removeMapping(final String cmHandleId) {
final String alternateId = alternateIdPerCmHandleId.remove(cmHandleId);
removeAlternateIdWithValidation(alternateId);
}
private void removeAlternateIdWithValidation(final String alternateId) {
if (alternateId != null) {
cmHandleIdPerAlternateId.remove(alternateId);
}
}
private void initializeCache() {
if (!cacheIsInitialized) {
networkCmProxyCmHandleQueryService.getAllCmHandles().forEach(cmHandle ->
addMappingWithValidation(cmHandle.getCmHandleId(), cmHandle.getAlternateId())
);
log.info("Alternate ID cache initialized from DB with {} cm handle/alternate id pairs ",
alternateIdPerCmHandleId.size());
cacheIsInitialized = true;
}
}
}
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