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/*
* Copyright © 2018 European Support Limited
*
* 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.
*/
package org.onap.sdc.workflow.services;
import java.util.Optional;
import org.apache.commons.lang3.ArrayUtils;
import org.onap.sdc.workflow.persistence.UniqueValueRepository;
import org.onap.sdc.workflow.persistence.types.UniqueValueEntity;
import org.onap.sdc.workflow.services.exceptions.UniqueValueViolationException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
@Service("uniqueValueService")
public class UniqueValueService {
private static final String FORMATTED_UNIQUE_VALUE_SEPARATOR = "_";
private final UniqueValueRepository uniqueValueRepository;
@Autowired
public UniqueValueService(UniqueValueRepository uniqueValueRepository) {
this.uniqueValueRepository = uniqueValueRepository;
}
/**
* Create unique value.
*
* @param type the type
* @param uniqueCombination the unique combination
*/
public void createUniqueValue(String type, String... uniqueCombination) {
formatValue(uniqueCombination).ifPresent(formattedValue -> {
validateUniqueValue(type, formattedValue, uniqueCombination);
uniqueValueRepository.insert(new UniqueValueEntity(type, formattedValue));
});
}
/**
* Delete unique value.
*
* @param type the type
* @param uniqueCombination the unique combination
*/
public void deleteUniqueValue(String type, String... uniqueCombination) {
formatValue(uniqueCombination)
.ifPresent(formattedValue -> uniqueValueRepository.delete(new UniqueValueEntity(type, formattedValue)));
}
/**
* Update unique value.
*
* @param type the type
* @param oldValue the old value
* @param newValue the new value
* @param uniqueContext the unique context
*/
public void updateUniqueValue(String type, String oldValue, String newValue, String... uniqueContext) {
if (newValue == null || !newValue.equalsIgnoreCase(oldValue)) {
createUniqueValue(type, ArrayUtils.addAll(uniqueContext, newValue));
deleteUniqueValue(type, ArrayUtils.addAll(uniqueContext, oldValue));
}
}
/**
* Validate unique value.
*
* @param type the type
* @param uniqueCombination the unique combination
*/
public void validateUniqueValue(String type, String... uniqueCombination) {
formatValue(uniqueCombination)
.ifPresent(formattedValue -> validateUniqueValue(type, formattedValue, uniqueCombination));
}
private Optional<String> formatValue(String[] uniqueCombination) {
if (ArrayUtils.isEmpty(uniqueCombination) || getValueWithoutContext(uniqueCombination) == null) {
return Optional.empty();
}
uniqueCombination[uniqueCombination.length - 1] = getValueWithoutContext(uniqueCombination).toLowerCase();
return Optional.of(String.join(FORMATTED_UNIQUE_VALUE_SEPARATOR, uniqueCombination));
}
private void validateUniqueValue(String type, String formattedValue, String[] uniqueCombination) {
if (isUniqueValueOccupied(type, formattedValue)) {
throw new UniqueValueViolationException(type, getValueWithoutContext(uniqueCombination));
}
}
private boolean isUniqueValueOccupied(String type, String formattedValue) {
return uniqueValueRepository.findById(new UniqueValueEntity(type, formattedValue)).isPresent();
}
/**
* Checks if a unique value is taken.
*
* @return true if the unique value is occupied, false otherwise
*/
public boolean isUniqueValueOccupied(String type, String... uniqueCombination) {
return formatValue(uniqueCombination).map(formattedValue -> isUniqueValueOccupied(type, formattedValue))
.orElse(false);
}
private String getValueWithoutContext(String[] uniqueCombination) {
return uniqueCombination[uniqueCombination.length - 1];
}
}
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