Example usage for io.netty.util NetUtil LOCALHOST6

Introduction

In this page you can find the example usage for io.netty.util NetUtil LOCALHOST6.

Prototype

Inet6Address LOCALHOST6

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Document

The Inet6Address that represents the IPv6 loopback address '::1'

Usage

From source file:io.vertx.core.dns.impl.fix.DnsQueryContextManager.java

License:Apache License

private IntObjectMap<DnsQueryContext> getOrCreateContextMap(InetSocketAddress nameServerAddr) {
    synchronized (map) {
        final IntObjectMap<DnsQueryContext> contexts = map.get(nameServerAddr);
        if (contexts != null) {
            return contexts;
        }// www .  ja  v  a 2s.co m

        final IntObjectMap<DnsQueryContext> newContexts = new IntObjectHashMap<DnsQueryContext>();
        final InetAddress a = nameServerAddr.getAddress();
        final int port = nameServerAddr.getPort();
        map.put(nameServerAddr, newContexts);

        if (a instanceof Inet4Address) {
            // Also add the mapping for the IPv4-compatible IPv6 address.
            final Inet4Address a4 = (Inet4Address) a;
            if (a4.isLoopbackAddress()) {
                map.put(new InetSocketAddress(NetUtil.LOCALHOST6, port), newContexts);
            } else {
                map.put(new InetSocketAddress(toCompatAddress(a4), port), newContexts);
            }
        } else if (a instanceof Inet6Address) {
            // Also add the mapping for the IPv4 address if this IPv6 address is compatible.
            final Inet6Address a6 = (Inet6Address) a;
            if (a6.isLoopbackAddress()) {
                map.put(new InetSocketAddress(NetUtil.LOCALHOST4, port), newContexts);
            } else if (a6.isIPv4CompatibleAddress()) {
                map.put(new InetSocketAddress(toIPv4Address(a6), port), newContexts);
            }
        }

        return newContexts;
    }
}

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