Afsalmc commented on issue #29841:
URL:
https://github.com/apache/shardingsphere/issues/29841#issuecomment-1958425446
@strongduanmu Forgot to mention that I am using java API to add default
sharding strategy.
` shardingRuleConfig.setDefaultDatabaseShardingStrategy(new
StandardShardingStrategyConfiguration("Accountid", "shardingLogic"));`
shardingLogic is a custom sharding Logic
```
public final class ShardingLogic implements
StandardShardingAlgorithm<Integer> {
private Map<Integer,String> shardMap = new HashMap<>();
private shardMapLoader shardMapLoader;
private AbstractConfiguration config;
public ShardingLogic() throws ConfigurationException {
config = Main.getConfig();
var shardConnection = config.getString("shardMapJdbcUrl");
var shardUser = config.getString("shardMapUserName");
var shardPass = config.getString("shardMapPass");
shardMapLoader = new
shardMapLoader(shardConnection,shardUser,shardPass);
shardMap = shardMapLoader.LoadtoJavaMap();
}
@Override
public String doSharding(final Collection<String> availableTargetNames,
final PreciseShardingValue<Integer> shardingValue) {
for (String each : availableTargetNames) {
if(!shardMap.containsKey(shardingValue.getValue()))
break;
if(availableTargetNames.size() ==1){
return each;
}
var dbSource = shardMap.get(shardingValue.getValue());
if(!each.contains(">")){
for (var dataSources: each.split("\\|")) {
if(dbSource.equals(dataSources)){
return each;
}
}
}
var shardingSchema =
shardingValue.getLogicTableName().split("__",2)[0];
var targetSchemaSet = each.split(">")[0];
String[] targetSchemas = null !=
config.getString(targetSchemaSet+"Schema") ?
config.getString(targetSchemaSet+"Schema").split(",") : new String[]{""};
var isMatchingSchema = (null !=shardingSchema) &&
Arrays.asList(targetSchemas).contains(shardingSchema);
if(isMatchingSchema){
var targetSources = each.split(">")[1].split("\\|");
for(var targetSource:targetSources){
if(dbSource.equals(targetSource))
return each;
}
}
}
return null;
}
@Override
public Collection<String> doSharding(final Collection<String>
availableTargetNames, final RangeShardingValue<Integer> shardingValue) {
return availableTargetNames;
}
}
```
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