luckleemon opened a new issue #8309:
URL: https://github.com/apache/shardingsphere/issues/8309
I have read the guide documentation you supply，but i still have no idea with
how to configurate it，when i want
to use the self implement sharding algorithm.
for example:
type: INLINE
props:
algorithm-expression: t_user_${id % 2}
if i want use self implement sharding algorithm, how to configurate
above.and i have put my jar into lib directory。
this is part of my sharding algorithm code
public class DatePreciseShardingAlgorithm implements
PreciseShardingAlgorithm<String> {
private static Logger logger =
LoggerFactory.getLogger(DatePreciseShardingAlgorithm.class);
private static DateTimeFormatter sdf =
DateTimeFormatter.ofPattern("yyyyMM", Locale.CHINA);
private static final String SEPERATOR = "_";
private static Date lowwerDate = null;
@Override
public String doSharding(Collection<String> availableTargetNames,
PreciseShardingValue<String> shardingValue) {
String loginTableName = shardingValue.getLogicTableName();
logger.info("logicTableName===={}",loginTableName);
String value = shardingValue.getValue();
Date createTime = null;
try {
createTime = new
SimpleDateFormat("yyyy-MM-dd").parse(value);
} catch (ParseException e) {
}
if(createTime == null){
return loginTableName;
}
String yyyyMM = "";
try{
yyyyMM =SEPERATOR+
createTime.toInstant().atZone(ZoneId.systemDefault()).toLocalDate().format(sdf);
return loginTableName+yyyyMM;
}catch(Exception e){
}
return loginTableName;
}
and the code works well, in shardingsphere4.
thank you very much.
hope your reply.
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