Improve storage logic on handling resource not found and access denied exceptions - Githubissues

osglworks / java-tool

Some simple common Java utilities

Apache License 2.0

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Improve storage logic on handling resource not found and access denied exceptions #231

Closed greenlaw110 closed 4 years ago

greenlaw110 commented 4 years ago

Add two new generic exception types:

org.osgl.exceptions.AccessDeniedException
org.osgl.exceptions.ResourceNotFoundException

Add two new methods to ISObject interface:

ISObject.isExists()
ISObject.isAccessDenied()

In case back service encountered resource not found exceptions, it shall throw out ResourceNotFoundException e.g.

java.io.FileNotFoundException for file system service
AmazonS3Exception with status code equals to 404 for S3 service

In case back service encountered access denied or permission issue, it shall throw out AccessDeniedException, e.g.

java.io.AccessDeniedException for file system service
AmazonS3Exception with status code equals to 403 for S3 service