Example usage for io.netty.resolver.dns DnsCacheEntry address

Introduction

In this page you can find the example usage for io.netty.resolver.dns DnsCacheEntry address.

Prototype

InetAddress address();

Source Link

Document

Get the resolved address.

Usage

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

License:Apache License

private boolean doResolveCached(String hostname, Promise<InetAddress> promise, DnsCache resolveCache) {
    final List<DnsCacheEntry> cachedEntries = resolveCache.get(hostname);
    if (cachedEntries == null) {
        return false;
    }//from www . j  a v  a 2 s .  c  om

    InetAddress address = null;
    Throwable cause = null;
    synchronized (cachedEntries) {
        final int numEntries = cachedEntries.size();
        assert numEntries > 0;

        if (cachedEntries.get(0).cause() != null) {
            cause = cachedEntries.get(0).cause();
        } else {
            // Find the first entry with the preferred address type.
            for (InternetProtocolFamily f : resolvedAddressTypes) {
                for (int i = 0; i < numEntries; i++) {
                    final DnsCacheEntry e = cachedEntries.get(i);
                    if (f.addressType().isInstance(e.address())) {
                        address = e.address();
                        break;
                    }
                }
            }
        }
    }

    if (address != null) {
        setSuccess(promise, address);
    } else if (cause != null) {
        if (!promise.tryFailure(cause)) {
            logger.warn("Failed to notify failure to a promise: {}", promise, cause);
        }
    } else {
        return false;
    }

    return true;
}

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

License:Apache License

private boolean doResolveAllCached(String hostname, Promise<List<InetAddress>> promise, DnsCache resolveCache) {
    final List<DnsCacheEntry> cachedEntries = resolveCache.get(hostname);
    if (cachedEntries == null) {
        return false;
    }/*from   ww  w. jav a2  s  .co  m*/

    List<InetAddress> result = null;
    Throwable cause = null;
    synchronized (cachedEntries) {
        final int numEntries = cachedEntries.size();
        assert numEntries > 0;

        if (cachedEntries.get(0).cause() != null) {
            cause = cachedEntries.get(0).cause();
        } else {
            for (InternetProtocolFamily f : resolvedAddressTypes) {
                for (int i = 0; i < numEntries; i++) {
                    final DnsCacheEntry e = cachedEntries.get(i);
                    if (f.addressType().isInstance(e.address())) {
                        if (result == null) {
                            result = new ArrayList<InetAddress>(numEntries);
                        }
                        result.add(e.address());
                    }
                }
            }
        }
    }

    if (result != null) {
        promise.trySuccess(result);
    } else if (cause != null) {
        promise.tryFailure(cause);
    } else {
        return false;
    }

    return true;
}

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