On Tue, 12 Oct 2021 15:43:24 GMT, Aleksei Efimov <aefi...@openjdk.org> wrote:
>> This change implements a new service provider interface for host name and >> address resolution, so that java.net.InetAddress API can make use of >> resolvers other than the platform's built-in resolver. >> >> The following API classes are added to `java.net.spi` package to facilitate >> this: >> - `InetAddressResolverProvider` - abstract class defining a service, and >> is, essentially, a factory for `InetAddressResolver` resolvers. >> - `InetAddressResolverProvider.Configuration ` - an interface describing the >> platform's built-in configuration for resolution operations that could be >> used to bootstrap a resolver construction, or to implement partial >> delegation of lookup operations. >> - `InetAddressResolver` - an interface that defines methods for the >> fundamental forward and reverse lookup operations. >> - `InetAddressResolver.LookupPolicy` - a class whose instances describe the >> characteristics of one forward lookup operation. >> >> More details in [JEP-418](https://openjdk.java.net/jeps/418). >> >> Testing: new and existing `tier1:tier3` tests > > Aleksei Efimov has updated the pull request incrementally with two additional > commits since the last revision: > > - Add @since tags to new API classes > - Add checks and test for empty stream resolver results What’s in a name? I find the method names of the InetAddressResolver interface a bit ambiguous. Typically in this DNS problem space one speaks of lookup to resolve a hostname to its associated addresses and reverse lookup to resolve an IP address to a hostname (or names) associated with it. For the method names lookupHostname, and lookupAddresses, and the semantics conveyed in those names, I would expect lookupHostname to resolve a hostname, that is, take a hostname as parameter and the return value the addresses, while lookupAddresses I would expect to resolve an address to its hostname, that is, take an address and return a hostname. However, the current pair of methods names convey the opposite, lookupHostname resolves an address and lookupAddresses resolves a hostname. I would proffer a method name change to use lookup and reverseLookup OR to use resolvesHostname and resolveAddress, to resolve a hostname and address respectively. Thus, lookupHostname should be renamed to reverseLookup and lookupAddresses to lookup OR lookupHostname renamed to resolveAddress and lookupAddresses renamed to resolveHostname. ------------- PR: https://git.openjdk.java.net/jdk/pull/5822
