dashevchenko
3 years ago
8 changed files with 156 additions and 81 deletions
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/** |
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* Copyright © 2016-2023 The Thingsboard Authors |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package org.thingsboard.server.dao.dictionary; |
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public interface KeyDictionaryDao { |
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Integer getOrSaveKeyId(String strKey); |
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String getKey(Integer attributeKey); |
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} |
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@ -0,0 +1,92 @@ |
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/** |
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* Copyright © 2016-2023 The Thingsboard Authors |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package org.thingsboard.server.dao.sqlts.dictionary; |
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import lombok.extern.slf4j.Slf4j; |
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import org.hibernate.exception.ConstraintViolationException; |
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import org.springframework.beans.factory.annotation.Autowired; |
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import org.springframework.dao.DataIntegrityViolationException; |
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import org.springframework.stereotype.Component; |
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import org.thingsboard.server.dao.dictionary.KeyDictionaryDao; |
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import org.thingsboard.server.dao.model.sqlts.dictionary.KeyDictionaryCompositeKey; |
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import org.thingsboard.server.dao.model.sqlts.dictionary.KeyDictionaryEntry; |
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import org.thingsboard.server.dao.sql.JpaAbstractDaoListeningExecutorService; |
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import org.thingsboard.server.dao.util.SqlDao; |
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import java.util.Optional; |
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import java.util.concurrent.ConcurrentHashMap; |
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import java.util.concurrent.ConcurrentMap; |
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import java.util.concurrent.locks.ReentrantLock; |
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@Component |
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@Slf4j |
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@SqlDao |
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public class JpaKeyDictionaryDao extends JpaAbstractDaoListeningExecutorService implements KeyDictionaryDao { |
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private final ConcurrentMap<String, Integer> keyDictionaryMap = new ConcurrentHashMap<>(); |
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protected static final ReentrantLock creationLock = new ReentrantLock(); |
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@Autowired |
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private KeyDictionaryRepository keyDictionaryRepository; |
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@Override |
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public Integer getOrSaveKeyId(String strKey) { |
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Integer keyId = keyDictionaryMap.get(strKey); |
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if (keyId == null) { |
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Optional<KeyDictionaryEntry> tsKvDictionaryOptional; |
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tsKvDictionaryOptional = keyDictionaryRepository.findById(new KeyDictionaryCompositeKey(strKey)); |
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if (tsKvDictionaryOptional.isEmpty()) { |
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creationLock.lock(); |
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try { |
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keyId = keyDictionaryMap.get(strKey); |
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if (keyId != null) { |
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return keyId; |
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} |
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tsKvDictionaryOptional = keyDictionaryRepository.findById(new KeyDictionaryCompositeKey(strKey)); |
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if (tsKvDictionaryOptional.isEmpty()) { |
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KeyDictionaryEntry keyDictionaryEntry = new KeyDictionaryEntry(); |
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keyDictionaryEntry.setKey(strKey); |
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try { |
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KeyDictionaryEntry saved = keyDictionaryRepository.save(keyDictionaryEntry); |
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keyDictionaryMap.put(saved.getKey(), saved.getKeyId()); |
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keyId = saved.getKeyId(); |
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} catch (DataIntegrityViolationException | ConstraintViolationException e) { |
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tsKvDictionaryOptional = keyDictionaryRepository.findById(new KeyDictionaryCompositeKey(strKey)); |
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KeyDictionaryEntry dictionary = tsKvDictionaryOptional.orElseThrow(() -> new RuntimeException("Failed to get KeyDictionaryEntry entity from DB!")); |
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keyDictionaryMap.put(dictionary.getKey(), dictionary.getKeyId()); |
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keyId = dictionary.getKeyId(); |
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} |
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} else { |
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keyId = tsKvDictionaryOptional.get().getKeyId(); |
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} |
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} finally { |
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creationLock.unlock(); |
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} |
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} else { |
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keyId = tsKvDictionaryOptional.get().getKeyId(); |
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keyDictionaryMap.put(strKey, keyId); |
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} |
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} |
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return keyId; |
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} |
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@Override |
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public String getKey(Integer attributeKey) { |
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Optional<KeyDictionaryEntry> byKeyId = keyDictionaryRepository.findByKeyId(attributeKey); |
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return byKeyId.map(KeyDictionaryEntry::getKey).orElse(null); |
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} |
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} |
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