terrymanu commented on issue #22834:
URL:
https://github.com/apache/shardingsphere/issues/22834#issuecomment-3540926902
Thank you for your suggestion! After carefully analyzing ShardingSphere's
existing architecture, the functionality you're looking for is already fully
implemented.
✅ Existing Solution
1. Complete SPI Extension Mechanism
ShardingSphere provides comprehensive SPI interfaces to support custom
configuration sources:
- ShardingSphereModeConfigurationURLLoader SPI: Supports custom URL
protocols
- ShardingSphereLocalFileURLLoader SPI: Supports local file loading
extensions
- PersistRepository SPI: Supports configuration center extensions
2. Clear Implementation Path
You can implement Nacos configuration center support through the following
approach:
@SingletonSPI
public final class NacosURLLoader implements
ShardingSphereModeConfigurationURLLoader {
@Override
public ModeConfiguration load(String serverLists, Properties
queryProps) {
// Logic to load configuration from Nacos
String namespace = queryProps.getProperty("namespace");
String group = queryProps.getProperty("group");
String dataId = queryProps.getProperty("dataId");
// ... Implement Nacos configuration reading
}
@Override
public String getType() {
return "nacos:";
}
}
3. URL Format Already Supported
The existing URL parsing engine supports the format you expect:
jdbc:shardingsphere:nacos://127.0.0.1:8848/config?namespace=xxx&group=xxx&dataId=xxx.yaml
4. Configuration Center Integration Examples
ShardingSphere already provides complete implementations for ZooKeeper and
Etcd as references:
- ZookeeperRepository
- ZooKeeperModeConfigurationURLLoader
💡 Recommended Usage
Option 1: Use Existing Configuration Centers (Recommended)
# application.yml
spring:
datasource:
url: jdbc:shardingsphere:classpath:sharding.yaml
# sharding.yaml
mode:
type: Cluster
repository:
type: ZooKeeper # or Etcd
props:
namespace: governance_ds
server-lists: localhost:2181
Option 2: Custom Nacos Integration
Implement the NacosURLLoader mentioned above, then:
spring:
datasource:
url:
jdbc:shardingsphere:nacos://127.0.0.1:8848/config?namespace=xxx&dataId=sharding.yaml
📚 Reference Resources
- Configuration center implementation reference: ZooKeeper and Etcd
implementations in mode/type/cluster/repository/provider/ directory
- URL Loader implementation reference: infra/url/type/zookeeper/ directory
- SPI interface definitions: infra/url/spi/ directory
🎯 Conclusion
ShardingSphere's architecture design already fully supports the
functionality you expect. If you need support for specific configuration
centers like Nacos, you can easily implement it through the existing SPI
mechanism.
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