| /* |
| * 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.ui.servcie.impl; |
| |
| import com.google.common.base.Joiner; |
| import com.google.common.base.Preconditions; |
| import com.google.common.base.Strings; |
| import org.apache.shardingsphere.governance.core.registry.state.ResourceState; |
| import org.apache.shardingsphere.governance.core.registry.state.node.StatesNode; |
| import org.apache.shardingsphere.infra.config.RuleConfiguration; |
| import org.apache.shardingsphere.infra.yaml.config.YamlRuleConfiguration; |
| import org.apache.shardingsphere.infra.yaml.engine.YamlEngine; |
| import org.apache.shardingsphere.infra.yaml.swapper.YamlRuleConfigurationSwapperEngine; |
| import org.apache.shardingsphere.readwritesplitting.api.ReadwriteSplittingRuleConfiguration; |
| import org.apache.shardingsphere.readwritesplitting.api.rule.ReadwriteSplittingDataSourceRuleConfiguration; |
| import org.apache.shardingsphere.ui.common.dto.InstanceDTO; |
| import org.apache.shardingsphere.ui.common.dto.ReadDataSourceDTO; |
| import org.apache.shardingsphere.ui.servcie.GovernanceService; |
| import org.apache.shardingsphere.ui.servcie.RegistryCenterService; |
| import org.apache.shardingsphere.ui.servcie.ShardingSchemaService; |
| import org.springframework.stereotype.Service; |
| import org.springframework.util.StringUtils; |
| |
| import javax.annotation.Resource; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.LinkedList; |
| import java.util.List; |
| import java.util.Optional; |
| import java.util.stream.Collectors; |
| |
| /** |
| * Implementation of governance operation service. |
| */ |
| @Service |
| public final class GovernanceServiceImpl implements GovernanceService { |
| |
| @Resource |
| private RegistryCenterService registryCenterService; |
| |
| @Resource |
| private ShardingSchemaService shardingSchemaService; |
| |
| @Override |
| public Collection<InstanceDTO> getALLInstance() { |
| List<String> instanceIds = registryCenterService.getActivatedRegistryCenter().getChildrenKeys(getInstancesNodeFullRootPath()); |
| Collection<InstanceDTO> result = new ArrayList<>(instanceIds.size()); |
| for (String instanceId : instanceIds) { |
| String value = registryCenterService.getActivatedRegistryCenter().get(StatesNode.getProxyNodePath(instanceId)); |
| result.add(new InstanceDTO(instanceId, !ResourceState.DISABLED.toString().equalsIgnoreCase(value))); |
| } |
| return result; |
| } |
| |
| @Override |
| public void updateInstanceStatus(final String instanceId, final boolean enabled) { |
| String value = enabled ? "" : ResourceState.DISABLED.toString(); |
| registryCenterService.getActivatedRegistryCenter().persist(StatesNode.getProxyNodePath(instanceId), value); |
| } |
| |
| @Override |
| public Collection<ReadDataSourceDTO> getAllReadDataSource() { |
| Collection<ReadDataSourceDTO> result = new ArrayList<>(); |
| for (String schemaName : shardingSchemaService.getAllSchemaNames()) { |
| String configData = shardingSchemaService.getRuleConfiguration(schemaName); |
| if (StringUtils.isEmpty(configData)) { |
| continue; |
| } |
| if (configData.contains("!SHARDING")) { |
| handleShardingRuleConfiguration(result, configData, schemaName); |
| } else if (configData.contains("!READWRITE_SPLITTING")) { |
| handleMasterSlaveRuleConfiguration(result, configData, schemaName); |
| } |
| } |
| return result; |
| } |
| |
| @Override |
| public void updateReadDataSourceStatus(final String schemaNames, final String readDataSourceName, final boolean enabled) { |
| String value = enabled ? "" : ResourceState.DISABLED.toString(); |
| registryCenterService.getActivatedRegistryCenter().persist(StatesNode.getDataSourcePath(schemaNames, readDataSourceName), value); |
| } |
| |
| private String getInstancesNodeFullRootPath() { |
| String result = StatesNode.getProxyNodePath(""); |
| return result.substring(0, result.length() - 1); |
| } |
| |
| private void handleShardingRuleConfiguration(final Collection<ReadDataSourceDTO> readDataSourceDTOS, final String configData, final String schemaName) { |
| Collection<RuleConfiguration> configurations = getRuleConfigurations(configData); |
| Collection<ReadwriteSplittingRuleConfiguration> readWriteSplittingRuleConfigurations = configurations.stream().filter( |
| config -> config instanceof ReadwriteSplittingRuleConfiguration).map(config -> (ReadwriteSplittingRuleConfiguration) config).collect(Collectors.toList()); |
| for (ReadwriteSplittingRuleConfiguration readwriteSplittingRuleConfiguration : readWriteSplittingRuleConfigurations) { |
| addSlaveDataSource(readDataSourceDTOS, readwriteSplittingRuleConfiguration, schemaName); |
| } |
| } |
| |
| private void handleMasterSlaveRuleConfiguration(final Collection<ReadDataSourceDTO> readDataSourceDTOS, final String configData, final String schemaName) { |
| ReadwriteSplittingRuleConfiguration readwriteSplittingRuleConfiguration = loadReadwriteSplittingRuleConfiguration(configData); |
| addSlaveDataSource(readDataSourceDTOS, readwriteSplittingRuleConfiguration, schemaName); |
| } |
| |
| private ReadwriteSplittingRuleConfiguration loadReadwriteSplittingRuleConfiguration(final String configData) { |
| Collection<RuleConfiguration> ruleConfigurations = getRuleConfigurations(configData); |
| Optional<ReadwriteSplittingRuleConfiguration> result = ruleConfigurations.stream().filter( |
| each -> each instanceof ReadwriteSplittingRuleConfiguration).map(ruleConfiguration -> (ReadwriteSplittingRuleConfiguration) ruleConfiguration).findFirst(); |
| Preconditions.checkState(result.isPresent()); |
| return result.get(); |
| } |
| |
| private void addSlaveDataSource(final Collection<ReadDataSourceDTO> readDataSourceDTOS, final ReadwriteSplittingRuleConfiguration readwriteSplittingRuleConfiguration, final String schemaName) { |
| Collection<String> disabledSchemaDataSourceNames = getDisabledSchemaDataSourceNames(); |
| for (ReadwriteSplittingDataSourceRuleConfiguration each : readwriteSplittingRuleConfiguration.getDataSources()) { |
| readDataSourceDTOS.addAll(getReadDataSourceDTOS(schemaName, disabledSchemaDataSourceNames, each)); |
| } |
| } |
| |
| private Collection<ReadDataSourceDTO> getReadDataSourceDTOS(final String schemaName, final Collection<String> disabledSchemaDataSourceNames, |
| final ReadwriteSplittingDataSourceRuleConfiguration group) { |
| Collection<ReadDataSourceDTO> result = new LinkedList<>(); |
| for (String each : group.getReadDataSourceNames()) { |
| result.add(new ReadDataSourceDTO(schemaName, group.getWriteDataSourceName(), each, !disabledSchemaDataSourceNames.contains(schemaName + "." + each))); |
| } |
| return result; |
| } |
| |
| private Collection<RuleConfiguration> getRuleConfigurations(final String yamlContent) { |
| Collection<YamlRuleConfiguration> rules = Strings.isNullOrEmpty(yamlContent) |
| ? new LinkedList<>() : YamlEngine.unmarshal(yamlContent, Collection.class); |
| return new YamlRuleConfigurationSwapperEngine().swapToRuleConfigurations(rules); |
| } |
| |
| private Collection<String> getDisabledSchemaDataSourceNames() { |
| List<String> result = new ArrayList<>(); |
| List<String> schemaNames = registryCenterService.getActivatedRegistryCenter().getChildrenKeys(StatesNode.getDataNodesPath()); |
| for (String schemaName : schemaNames) { |
| List<String> dataSourceNames = registryCenterService.getActivatedRegistryCenter().getChildrenKeys(StatesNode.getSchemaPath(schemaName)); |
| for (String dataSourceName : dataSourceNames) { |
| String value = registryCenterService.getActivatedRegistryCenter().get(StatesNode.getDataSourcePath(schemaName, dataSourceName)); |
| if (ResourceState.DISABLED.toString().equalsIgnoreCase(value)) { |
| result.add(Joiner.on(".").join(schemaName, dataSourceName)); |
| } |
| } |
| } |
| return result; |
| } |
| } |