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Posted to notifications@shardingsphere.apache.org by GitBox <gi...@apache.org> on 2021/11/30 08:18:09 UTC
[GitHub] [shardingsphere] taotao365s opened a new issue #13865: what does PropertyUtil.v2 function mean?
taotao365s opened a new issue #13865:
URL: https://github.com/apache/shardingsphere/issues/13865
## Question
background: shardingsphere 5.0
- application.yml
````
spring.shardingsphere.rules.sharding.tables.t_dict.key-generate-strategy.column=id
spring.shardingsphere.rules.sharding.tables.t_dict.key-generate-strategy.key-generator-name=dict_primary_key
spring.shardingsphere.rules.sharding.key-generators.dict_primary_key.type=BIZ_PRIMARY_KEY
spring.shardingsphere.rules.sharding.key-generators.dict_primary_key.props.biz-type=dict
````
- BizPrimaryKeyGenerateAlgorithm.java
````
public final class BizPrimaryKeyGenerateAlgorithm implements KeyGenerateAlgorithm {
@Getter
@Setter
private Properties props = new Properties();
private String bizType;
@Override
public Comparable<?> generateKey() {
//TODO
}
@Override
public void init() {
this.bizType = props.getProperty("biz-type", "default");
log.info("init biz type={}", this.bizType);
}
@Override
public String getType() {
return "BIZ_PRIMARY_KEY";
}
}
````
- when I set `key-generator-name` is `dict_primary_key`, props is always null in BizPrimaryKeyGenerateAlgorithm.java
- then I debug it to `PropertyUtil.containPropertyPrefix --> v2`
````
@SneakyThrows(ReflectiveOperationException.class)
private static Object v2(final Environment environment, final String prefix, final Class<?> targetClass) {
Class<?> binderClass = Class.forName("org.springframework.boot.context.properties.bind.Binder");
Method getMethod = binderClass.getDeclaredMethod("get", Environment.class);
Method bindMethod = binderClass.getDeclaredMethod("bind", String.class, Class.class);
Object binderObject = getMethod.invoke(null, environment);
String prefixParam = prefix.endsWith(".") ? prefix.substring(0, prefix.length() - 1) : prefix;
Object bindResultObject = bindMethod.invoke(binderObject, prefixParam, targetClass);
Method resultGetMethod = bindResultObject.getClass().getDeclaredMethod("get");
return resultGetMethod.invoke(bindResultObject);
}
````
so what does v2 function mean?
when I change `key-generator-name` to `dict-primary-key`, props have values in BizPrimaryKeyGenerateAlgorithm.java
````
spring.shardingsphere.rules.sharding.tables.t_dict.key-generate-strategy.column=id
spring.shardingsphere.rules.sharding.tables.t_dict.key-generate-strategy.key-generator-name=dict-primary-key
spring.shardingsphere.rules.sharding.key-generators.dict-primary-key.type=BIZ_PRIMARY_KEY
spring.shardingsphere.rules.sharding.key-generators.dict-primary-key.props.biz-type=dict
````
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[GitHub] [shardingsphere] taotao365s commented on issue #13865: what does PropertyUtil.v2 function mean?
Posted by GitBox <gi...@apache.org>.
taotao365s commented on issue #13865:
URL: https://github.com/apache/shardingsphere/issues/13865#issuecomment-982542719
> @taotao365s v2 are SpringBoot 2.x.
I know springboot2， what’s function doing？
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[GitHub] [shardingsphere] zjcnb commented on issue #13865: what does PropertyUtil.v2 function mean?
Posted by GitBox <gi...@apache.org>.
zjcnb commented on issue #13865:
URL: https://github.com/apache/shardingsphere/issues/13865#issuecomment-982600452
I think it 's read springboot application.properties configuration, What do you think?
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[GitHub] [shardingsphere] terrymanu closed issue #13865: what does PropertyUtil.v2 function mean?
Posted by GitBox <gi...@apache.org>.
terrymanu closed issue #13865:
URL: https://github.com/apache/shardingsphere/issues/13865
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[GitHub] [shardingsphere] terrymanu commented on issue #13865: what does PropertyUtil.v2 function mean?
Posted by GitBox <gi...@apache.org>.
terrymanu commented on issue #13865:
URL: https://github.com/apache/shardingsphere/issues/13865#issuecomment-1046270006
I just close this issue because no response for long time.
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[GitHub] [shardingsphere] terrymanu commented on issue #13865: what does PropertyUtil.v2 function mean?
Posted by GitBox <gi...@apache.org>.
terrymanu commented on issue #13865:
URL: https://github.com/apache/shardingsphere/issues/13865#issuecomment-1046269952
I just close this issue because no response for long time.
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[GitHub] [shardingsphere] RaigorJiang commented on issue #13865: what does PropertyUtil.v2 function mean?
Posted by GitBox <gi...@apache.org>.
RaigorJiang commented on issue #13865:
URL: https://github.com/apache/shardingsphere/issues/13865#issuecomment-988574646
Hi @taotao365s
If your question is solved, can we close this issue?
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[GitHub] [shardingsphere] zjcnb commented on issue #13865: what does PropertyUtil.v2 function mean?
Posted by GitBox <gi...@apache.org>.
zjcnb commented on issue #13865:
URL: https://github.com/apache/shardingsphere/issues/13865#issuecomment-982424320
@taotao365s v2 are SpringBoot 2.x.
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