Class RoutingUtils

java.lang.Object

io.grpc.xds.RoutingUtils

final class RoutingUtils
extends Object

Utilities for performing virtual host domain name matching and route matching.

Constructor Summary

Constructors

Modifier	Constructor	Description
private	RoutingUtils()

Method Summary

Modifier and Type	Method	Description
(package private) static VirtualHost	findVirtualHostForHostName(List<VirtualHost> virtualHosts, String hostName)	Returns the VirtualHost with the best match domain for the given hostname.
private static String	getHeaderValue(io.grpc.Metadata headers, String headerName)
private static boolean	matchHostName(String hostName, String pattern)	Returns true iff hostName matches the domain name pattern with case-insensitive.
private static boolean	matchPath(VirtualHost.Route.RouteMatch.PathMatcher pathMatcher, String fullMethodName)
(package private) static boolean	matchRoute(VirtualHost.Route.RouteMatch routeMatch, String fullMethodName, io.grpc.Metadata headers, ThreadSafeRandom random)	Returns true iff the given VirtualHost.Route.RouteMatch matches the RPC's full method name and headers.

Methods inherited from class Object

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

Constructor Details

RoutingUtils

private RoutingUtils()

Method Details

findVirtualHostForHostName

@Nullable
static VirtualHost findVirtualHostForHostName(List<VirtualHost> virtualHosts,
 String hostName)

Returns the VirtualHost with the best match domain for the given hostname.

matchHostName

private static boolean matchHostName(String hostName,
 String pattern)

Returns true iff hostName matches the domain name pattern with case-insensitive.

Wildcard pattern rules:

1. A single asterisk (*) matches any domain.
2. Asterisk (*) is only permitted in the left-most or the right-most part of the pattern, but not both.

matchRoute

static boolean matchRoute(VirtualHost.Route.RouteMatch routeMatch,
 String fullMethodName,
 io.grpc.Metadata headers,
 ThreadSafeRandom random)

Returns true iff the given VirtualHost.Route.RouteMatch matches the RPC's full method name and headers.

matchPath

private static boolean matchPath(VirtualHost.Route.RouteMatch.PathMatcher pathMatcher,
 String fullMethodName)

getHeaderValue

@Nullable
private static String getHeaderValue(io.grpc.Metadata headers,
 String headerName)