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https://issues.apache.org/jira/browse/SCB-546?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16467026#comment-16467026
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ASF GitHub Bot commented on SCB-546:
------------------------------------
liubao68 commented on a change in pull request #691: [SCB-546] refactor the
schemas registry logic
URL:
https://github.com/apache/incubator-servicecomb-java-chassis/pull/691#discussion_r186642768
##########
File path:
service-registry/src/main/java/org/apache/servicecomb/serviceregistry/task/MicroserviceRegisterTask.java
##########
@@ -136,19 +140,48 @@ private boolean checkSchemaIdSet() {
}
private boolean registerSchemas() {
+ List<GetSchemaResponse> existSchemas =
srClient.getSchemas(microservice.getServiceId());
for (Entry<String, String> entry : microservice.getSchemaMap().entrySet())
{
String schemaId = entry.getKey();
String content = entry.getValue();
-
- boolean exists = srClient.isSchemaExist(microservice.getServiceId(),
schemaId);
- LOGGER.info("schemaId {} exists {}", schemaId, exists);
+ GetSchemaResponse existSchema = extractSchema(schemaId, existSchemas);
+ boolean exists = existSchema == null ? false : true;
+ LOGGER.info("schemaId [{}] exists {}", schemaId, exists);
if (!exists) {
if (!srClient.registerSchema(microservice.getServiceId(), schemaId,
content)) {
return false;
}
+ } else {
+ String curSchemaSumary = existSchema.getSummary();
+ String schemaSummary = Hashing.md5().newHasher().putString(content,
Charsets.UTF_8).hash().toString();
+ if (!schemaSummary.equals(curSchemaSumary)) {
+ if (microservice.getInstance().getEnvironment().startsWith("dev")) {
+ LOGGER.info(
+ "schemaId [{}]'s content changes and the current enviroment is
development, so re-register it!",
+ schemaId);
+ srClient.registerSchema(microservice.getServiceId(), schemaId,
content);
+ } else {
+ throw new RuntimeException("schemaId [" + schemaId
+ + "] exists, but schema's content changes and the current
enviroment is production, program will stop!\n"
+ + "If you are developing now, you can set
-Dinstance_description.environment=prod in program start config!");
+ }
+ }
Review comment:
Schema [schemaId] exists in service center, but the content does not match
the local content and which means there are interface change and you need to
increment microservice version before deploying. Or you can configure
instance_description.environment=development to work in debug mode and ignore
this error.
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> As a developer, want to reregistry schemas in the dev environment
> -----------------------------------------------------------------
>
> Key: SCB-546
> URL: https://issues.apache.org/jira/browse/SCB-546
> Project: Apache ServiceComb
> Issue Type: Improvement
> Components: Java-Chassis
> Affects Versions: java-chassis-1.0.0-m1
> Reporter: jeho0815
> Assignee: jeho0815
> Priority: Major
> Fix For: java-chassis-1.0.0-m2
>
>
> 1、the servicecenter has a new rest interface which return all schemas with
> signature, so we can compare the summary to know whether to update the schema
> 2、if the instance enviroment is dev, we reregistry the schemas, otherwize
> throw a RuntimeException to avoid make some potential exception in production
> environment
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