Package com.linecorp.armeria.client

Class DnsCacheBuilder

java.lang.Object

com.linecorp.armeria.client.DnsCacheBuilder

@UnstableApi
public final class DnsCacheBuilder
extends Object

A builder for DnsCache.

Method Summary

Modifier and Type	Method	Description
DnsCache	build()	Returns a newly created DnsCache.
DnsCacheBuilder	cacheSpec(String cacheSpec)	Sets the Caffeine specification string.
DnsCacheBuilder	meterRegistry(MeterRegistry meterRegistry)	Sets the MeterRegistry that collects cache stats.
DnsCacheBuilder	negativeTtl(int negativeTtl)	Sets the TTL of the cache for the failed DNS queries in seconds.
DnsCacheBuilder	ttl(int minTtl, int maxTtl)	Sets the minimum and maximum TTL of the cached DNS resource records in seconds.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

cacheSpec

public DnsCacheBuilder cacheSpec(String cacheSpec)

Sets the Caffeine specification string. If not specified, Flags.dnsCacheSpec() is used by default.

meterRegistry

public DnsCacheBuilder meterRegistry(MeterRegistry meterRegistry)

Sets the MeterRegistry that collects cache stats. If unspecified, Metrics.globalRegistry is used.

ttl

public DnsCacheBuilder ttl(int minTtl,
 int maxTtl)

Sets the minimum and maximum TTL of the cached DNS resource records in seconds. If the TTL of the DNS resource record returned by the DNS server is less than the minimum TTL or greater than the maximum TTL, this resolver will ignore the TTL from the DNS server and use the minimum TTL or the maximum TTL instead respectively. The default value is 1 and Integer.MAX_VALUE, which practically tells this resolver to respect the TTL from the DNS server.

negativeTtl

public DnsCacheBuilder negativeTtl(int negativeTtl)

Sets the TTL of the cache for the failed DNS queries in seconds. The default value is 0 which means that failed DNS queries are not cached.

build

public DnsCache build()

Returns a newly created DnsCache.