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/*
* Copyright 2019 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { Resolver, ResolverListener, registerResolver } from './resolver';
import { SubchannelAddress } from './subchannel-address';
import { GrpcUri } from './uri-parser';
import { ChannelOptions } from './channel-options';
class UdsResolver implements Resolver {
private addresses: SubchannelAddress[] = [];
private hasReturnedResult = false;
constructor(
target: GrpcUri,
private listener: ResolverListener,
channelOptions: ChannelOptions
) {
let path: string;
if (target.authority === '') {
path = '/' + target.path;
} else {
path = target.path;
}
this.addresses = [{ path }];
}
updateResolution(): void {
if (!this.hasReturnedResult) {
this.hasReturnedResult = true;
process.nextTick(
this.listener.onSuccessfulResolution,
this.addresses,
null,
null,
null,
{}
);
}
}
destroy() {
// This resolver owns no resources, so we do nothing here.
}
static getDefaultAuthority(target: GrpcUri): string {
return 'localhost';
}
}
export function setup() {
registerResolver('unix', UdsResolver);
}
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