> +
> + @Resource
> + @Named(ChefProperties.CHEF_LOGGER)
> + private Logger logger = Logger.NULL;
> +
> + /** The configured version of the Chef Server API. */
> + private final String apiVersion;
> +
> + @Inject
> + ChefVersionSupplier(@ApiVersion String apiVersion) {
> + this.apiVersion = checkNotNull(apiVersion, "apiVersion must not be
> null");
> + }
> +
> + @Override
> + public Integer get() {
> + Pattern versionPattern = Pattern.compile("(\\d+)\\.(\\d+)(\\.\\d+)*");
Indeed:
public static void main (String[] args) throws java.lang.Exception
{
Pattern p =
Pattern.compile("(?:([1-9]\\d*)\\.\\d+)|(?:0\\.(\\d+))");
Matcher m = p.matcher("0.1");
System.out.println(m.groupCount());
System.out.println(m.group(1));
System.out.println(m.group(2));
m = p.matcher("1.0");
System.out.println(m.groupCount());
System.out.println(m.group(1));
System.out.println(m.group(2));
}
Output;
```
2
null
1
2
1
null
```
How about this and then `return Objects.firstNonNull(m.group(1), m.group(2));`?
(from
[Guava](http://docs.guava-libraries.googlecode.com/git/javadoc/com/google/common/base/Objects.html#firstNonNull\(T,
T\)))
---
Reply to this email directly or view it on GitHub:
https://github.com/jclouds/jclouds-chef/pull/18/files#r6309112
