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/*
* ============LICENSE_START=======================================================
* Copyright (C) 2022 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.inventory.sync;
import java.security.SecureRandom;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.onap.cps.ncmp.api.impl.yangmodels.YangModelCmHandle;
import org.onap.cps.ncmp.api.inventory.CmHandleState;
import org.onap.cps.ncmp.api.inventory.CompositeState;
import org.onap.cps.ncmp.api.inventory.InventoryPersistence;
import org.onap.cps.ncmp.api.inventory.LockReasonCategory;
import org.onap.cps.spi.model.DataNode;
import org.springframework.stereotype.Component;
@Slf4j
@Component
@RequiredArgsConstructor
public class SyncUtils {
private static final SecureRandom secureRandom = new SecureRandom();
private final InventoryPersistence inventoryPersistence;
private static final Pattern retryAttemptPattern = Pattern.compile("^Attempt #(\\d+) failed:");
/**
* Query data nodes for cm handles with an "ADVISED" cm handle state, and select a random entry for processing.
*
* @return a random yang model cm handle with an ADVISED state, return null if not found
*/
public YangModelCmHandle getAnAdvisedCmHandle() {
final List<DataNode> advisedCmHandles = inventoryPersistence.getCmHandlesByState(CmHandleState.ADVISED);
if (advisedCmHandles.isEmpty()) {
return null;
}
final int randomElementIndex = secureRandom.nextInt(advisedCmHandles.size());
final String cmHandleId = advisedCmHandles.get(randomElementIndex).getLeaves()
.get("id").toString();
return inventoryPersistence.getYangModelCmHandle(cmHandleId);
}
/**
* Update Composite State attempts counter and set new lock reason and details.
*
* @param lockReasonCategory lock reason category
* @param errorMessage error message
*/
public void updateLockReasonDetailsAndAttempts(final CompositeState compositeState,
final LockReasonCategory lockReasonCategory,
final String errorMessage) {
int attempt = 1;
if (compositeState.getLockReason() != null) {
final Matcher matcher = retryAttemptPattern.matcher(compositeState.getLockReason().getDetails());
if (matcher.find()) {
attempt = 1 + Integer.parseInt(matcher.group(1));
}
}
compositeState.setLockReason(CompositeState.LockReason.builder()
.details(String.format("Attempt #%d failed: %s", attempt, errorMessage))
.lockReasonCategory(lockReasonCategory).build());
}
}
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