Issue
We are working on Spring based application which needs to access and read certain credentials stored in the yaml file which use the format below:
#yaml file content
...
secrets: username1:pw1, username2:pw2
...
we load the yaml file using PropertySource annotation like this
@PropertySources({
@PropertySource(value = "file:/someSecretPath/secrets.yaml", ignoreResourceNotFound = true) // secret yaml file
})
I have tried using the following code to parse it into array of map object since it is a list contains 2 object type,
@Repository
public class getSecretClass {
@Value("${secrets}")
private Map<String,String>[] credentials;
}
but it fails with this error:
... 'java.lang.string' cannot be converted into java.lang.map[] ....
On the other hand, I tested reading from simple string array like this one:
#yaml file content
...
secrets: text1, text2
...
and the code below would work with no issue:
@Repository
public class getSecretClass {
@Value("${secrets}")
private String[] credentials;
...
private someReadSecretMethod(){
System.out.println( credentials[0] );
}
}
it will print "text1" as expected. But we do need to store the credentials as pairs in my use case, a plain text would not work for me.
Any suggestion or advice would be much appreciated !
Solution
Why not do something easier on the eyes, easier to program if not a little verbose:
secrets:
- username: username1
password: pwd1
- username: username2
password: pwd2
Have a class for your secret:
public class Secret {
private String username;
private String password;
public String toString() { return username + ":" password; }
}
And then injects as
@Value("${secrets}")
List<Secret> secrets;
Answered By - Strelok
Answer Checked By - David Marino (JavaFixing Volunteer)
