| /* |
| * 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.readwritesplitting.yaml.swapper; |
| |
| import org.apache.shardingsphere.infra.algorithm.core.yaml.YamlAlgorithmConfiguration; |
| import org.apache.shardingsphere.infra.util.yaml.YamlEngine; |
| import org.apache.shardingsphere.infra.util.yaml.datanode.RepositoryTuple; |
| import org.apache.shardingsphere.mode.path.RuleNodePath; |
| import org.apache.shardingsphere.mode.spi.RepositoryTupleSwapper; |
| import org.apache.shardingsphere.readwritesplitting.api.ReadwriteSplittingRuleConfiguration; |
| import org.apache.shardingsphere.readwritesplitting.constant.ReadwriteSplittingOrder; |
| import org.apache.shardingsphere.readwritesplitting.metadata.nodepath.ReadwriteSplittingRuleNodePathProvider; |
| import org.apache.shardingsphere.readwritesplitting.yaml.config.YamlReadwriteSplittingRuleConfiguration; |
| import org.apache.shardingsphere.readwritesplitting.yaml.config.rule.YamlReadwriteSplittingDataSourceGroupRuleConfiguration; |
| |
| import java.util.Collection; |
| import java.util.LinkedHashMap; |
| import java.util.LinkedList; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| import java.util.Optional; |
| import java.util.stream.Collectors; |
| |
| /** |
| * Readwrite-splitting rule configuration repository tuple swapper. |
| */ |
| public final class ReadwriteSplittingRuleConfigurationRepositoryTupleSwapper implements RepositoryTupleSwapper<ReadwriteSplittingRuleConfiguration, YamlReadwriteSplittingRuleConfiguration> { |
| |
| private final RuleNodePath readwriteSplittingRuleNodePath = new ReadwriteSplittingRuleNodePathProvider().getRuleNodePath(); |
| |
| @Override |
| public Collection<RepositoryTuple> swapToRepositoryTuples(final YamlReadwriteSplittingRuleConfiguration yamlRuleConfig) { |
| Collection<RepositoryTuple> result = new LinkedList<>(); |
| for (Entry<String, YamlAlgorithmConfiguration> entry : yamlRuleConfig.getLoadBalancers().entrySet()) { |
| result.add(new RepositoryTuple(readwriteSplittingRuleNodePath.getNamedItem(ReadwriteSplittingRuleNodePathProvider.LOAD_BALANCERS).getPath(entry.getKey()), |
| YamlEngine.marshal(entry.getValue()))); |
| } |
| for (Entry<String, YamlReadwriteSplittingDataSourceGroupRuleConfiguration> entry : yamlRuleConfig.getDataSourceGroups().entrySet()) { |
| result.add(new RepositoryTuple( |
| readwriteSplittingRuleNodePath.getNamedItem(ReadwriteSplittingRuleNodePathProvider.DATA_SOURCES).getPath(entry.getKey()), YamlEngine.marshal(entry.getValue()))); |
| } |
| return result; |
| } |
| |
| @Override |
| public Optional<YamlReadwriteSplittingRuleConfiguration> swapToObject(final Collection<RepositoryTuple> repositoryTuples) { |
| List<RepositoryTuple> validRepositoryTuples = repositoryTuples.stream().filter(each -> readwriteSplittingRuleNodePath.getRoot().isValidatedPath(each.getKey())).collect(Collectors.toList()); |
| if (validRepositoryTuples.isEmpty()) { |
| return Optional.empty(); |
| } |
| YamlReadwriteSplittingRuleConfiguration yamlRuleConfig = new YamlReadwriteSplittingRuleConfiguration(); |
| Map<String, YamlReadwriteSplittingDataSourceGroupRuleConfiguration> dataSourceGroups = new LinkedHashMap<>(); |
| Map<String, YamlAlgorithmConfiguration> loadBalancers = new LinkedHashMap<>(); |
| for (RepositoryTuple each : validRepositoryTuples) { |
| readwriteSplittingRuleNodePath.getNamedItem(ReadwriteSplittingRuleNodePathProvider.DATA_SOURCES).getName(each.getKey()) |
| .ifPresent(optional -> dataSourceGroups.put(optional, YamlEngine.unmarshal(each.getValue(), YamlReadwriteSplittingDataSourceGroupRuleConfiguration.class))); |
| readwriteSplittingRuleNodePath.getNamedItem(ReadwriteSplittingRuleNodePathProvider.LOAD_BALANCERS).getName(each.getKey()) |
| .ifPresent(optional -> loadBalancers.put(optional, YamlEngine.unmarshal(each.getValue(), YamlAlgorithmConfiguration.class))); |
| } |
| yamlRuleConfig.setDataSourceGroups(dataSourceGroups); |
| yamlRuleConfig.setLoadBalancers(loadBalancers); |
| return Optional.of(yamlRuleConfig); |
| } |
| |
| @Override |
| public Class<ReadwriteSplittingRuleConfiguration> getTypeClass() { |
| return ReadwriteSplittingRuleConfiguration.class; |
| } |
| |
| @Override |
| public String getRuleTagName() { |
| return "READWRITE_SPLITTING"; |
| } |
| |
| @Override |
| public int getOrder() { |
| return ReadwriteSplittingOrder.ORDER; |
| } |
| } |