| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.shardingsphere.metadata.persist.service.config.database.rule; |
| |
| import com.google.common.base.Strings; |
| import org.apache.shardingsphere.infra.config.rule.RuleConfiguration; |
| import org.apache.shardingsphere.infra.metadata.version.MetaDataVersion; |
| import org.apache.shardingsphere.infra.util.yaml.datanode.RepositoryTuple; |
| import org.apache.shardingsphere.infra.yaml.config.swapper.rule.YamlDataNodeRuleConfigurationSwapper; |
| import org.apache.shardingsphere.infra.yaml.config.swapper.rule.YamlDataNodeRuleConfigurationSwapperEngine; |
| import org.apache.shardingsphere.metadata.persist.node.metadata.DatabaseRuleMetaDataNode; |
| import org.apache.shardingsphere.metadata.persist.service.config.AbstractPersistService; |
| import org.apache.shardingsphere.metadata.persist.service.config.database.DatabaseBasedPersistService; |
| import org.apache.shardingsphere.mode.spi.PersistRepository; |
| |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.LinkedList; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| |
| /** |
| * Database rule persist service. |
| */ |
| public final class DatabaseRulePersistService extends AbstractPersistService implements DatabaseBasedPersistService<Collection<RuleConfiguration>> { |
| |
| private static final String DEFAULT_VERSION = "0"; |
| |
| private final PersistRepository repository; |
| |
| public DatabaseRulePersistService(final PersistRepository repository) { |
| super(repository); |
| this.repository = repository; |
| } |
| |
| @SuppressWarnings({"unchecked", "rawtypes"}) |
| @Override |
| public void persist(final String databaseName, final Collection<RuleConfiguration> configs) { |
| Map<RuleConfiguration, YamlDataNodeRuleConfigurationSwapper> yamlConfigs = new YamlDataNodeRuleConfigurationSwapperEngine().swapToYamlRuleConfigurations(configs); |
| for (Entry<RuleConfiguration, YamlDataNodeRuleConfigurationSwapper> entry : yamlConfigs.entrySet()) { |
| Collection<RepositoryTuple> repositoryTuples = entry.getValue().swapToRepositoryTuples(entry.getKey()); |
| if (!repositoryTuples.isEmpty()) { |
| persistDataNodes(databaseName, entry.getValue().getRuleTagName().toLowerCase(), repositoryTuples); |
| } |
| } |
| } |
| |
| @Override |
| public Collection<RuleConfiguration> load(final String databaseName) { |
| Collection<RepositoryTuple> repositoryTuple = getRepositoryTuple(DatabaseRuleMetaDataNode.getRulesNode(databaseName)); |
| return repositoryTuple.isEmpty() ? Collections.emptyList() : new YamlDataNodeRuleConfigurationSwapperEngine().swapToRuleConfigurations(repositoryTuple); |
| } |
| |
| @Override |
| public void delete(final String databaseName, final String name) { |
| repository.delete(DatabaseRuleMetaDataNode.getDatabaseRuleNode(databaseName, name)); |
| } |
| |
| @SuppressWarnings({"unchecked", "rawtypes"}) |
| @Override |
| public Collection<MetaDataVersion> persistConfig(final String databaseName, final Collection<RuleConfiguration> configs) { |
| Collection<MetaDataVersion> result = new LinkedList<>(); |
| Map<RuleConfiguration, YamlDataNodeRuleConfigurationSwapper> yamlConfigs = new YamlDataNodeRuleConfigurationSwapperEngine().swapToYamlRuleConfigurations(configs); |
| for (Entry<RuleConfiguration, YamlDataNodeRuleConfigurationSwapper> entry : yamlConfigs.entrySet()) { |
| Collection<RepositoryTuple> repositoryTuples = entry.getValue().swapToRepositoryTuples(entry.getKey()); |
| if (!repositoryTuples.isEmpty()) { |
| result.addAll(persistDataNodes(databaseName, entry.getValue().getRuleTagName().toLowerCase(), repositoryTuples)); |
| } |
| } |
| return result; |
| } |
| |
| private Collection<MetaDataVersion> persistDataNodes(final String databaseName, final String ruleName, final Collection<RepositoryTuple> repositoryTuples) { |
| Collection<MetaDataVersion> result = new LinkedList<>(); |
| for (RepositoryTuple each : repositoryTuples) { |
| List<String> versions = repository.getChildrenKeys(DatabaseRuleMetaDataNode.getDatabaseRuleVersionsNode(databaseName, ruleName, each.getKey())); |
| String nextVersion = versions.isEmpty() ? DEFAULT_VERSION : String.valueOf(Integer.parseInt(versions.get(0)) + 1); |
| repository.persist(DatabaseRuleMetaDataNode.getDatabaseRuleVersionNode(databaseName, ruleName, each.getKey(), nextVersion), each.getValue()); |
| if (Strings.isNullOrEmpty(getActiveVersion(databaseName, ruleName, each.getKey()))) { |
| repository.persist(DatabaseRuleMetaDataNode.getDatabaseRuleActiveVersionNode(databaseName, ruleName, each.getKey()), DEFAULT_VERSION); |
| } |
| result.add(new MetaDataVersion(DatabaseRuleMetaDataNode.getDatabaseRuleNode(databaseName, ruleName, each.getKey()), getActiveVersion(databaseName, ruleName, each.getKey()), nextVersion)); |
| } |
| return result; |
| } |
| |
| @SuppressWarnings({"unchecked", "rawtypes"}) |
| @Override |
| public Collection<MetaDataVersion> deleteConfig(final String databaseName, final Collection<RuleConfiguration> configs) { |
| Collection<MetaDataVersion> result = new LinkedList<>(); |
| Map<RuleConfiguration, YamlDataNodeRuleConfigurationSwapper> yamlConfigs = new YamlDataNodeRuleConfigurationSwapperEngine().swapToYamlRuleConfigurations(configs); |
| for (Entry<RuleConfiguration, YamlDataNodeRuleConfigurationSwapper> entry : yamlConfigs.entrySet()) { |
| Collection<RepositoryTuple> repositoryTuples = entry.getValue().swapToRepositoryTuples(entry.getKey()); |
| if (repositoryTuples.isEmpty()) { |
| continue; |
| } |
| List<RepositoryTuple> newRepositoryTuples = new LinkedList<>(repositoryTuples); |
| Collections.reverse(newRepositoryTuples); |
| result.addAll(deleteDataNodes(databaseName, entry.getValue().getRuleTagName().toLowerCase(), newRepositoryTuples)); |
| } |
| return result; |
| } |
| |
| private Collection<MetaDataVersion> deleteDataNodes(final String databaseName, final String ruleName, final Collection<RepositoryTuple> repositoryTuples) { |
| Collection<MetaDataVersion> result = new LinkedList<>(); |
| for (RepositoryTuple each : repositoryTuples) { |
| String delKey = DatabaseRuleMetaDataNode.getDatabaseRuleNode(databaseName, ruleName, each.getKey()); |
| repository.delete(delKey); |
| result.add(new MetaDataVersion(delKey)); |
| } |
| return result; |
| } |
| |
| private String getActiveVersion(final String databaseName, final String ruleName, final String key) { |
| return repository.getDirectly(DatabaseRuleMetaDataNode.getDatabaseRuleActiveVersionNode(databaseName, ruleName, key)); |
| } |
| } |