102 lines
2.5 KiB
Go
102 lines
2.5 KiB
Go
package agent
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/*
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Copyright 2025 Suyono <suyono3484@gmail.com>
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import (
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"context"
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"fmt"
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"google.golang.org/protobuf/types/known/emptypb"
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"net"
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pb "gitea.suyono.dev/suyono/go-agent/proto"
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"google.golang.org/grpc"
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"google.golang.org/grpc/credentials/insecure"
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)
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type CacheConn struct {
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conn *grpc.ClientConn
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client pb.AgentClient
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}
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func NewCacheConn(socketPath string) (CacheConn, error) {
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var (
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result CacheConn
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err error
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)
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result.conn, err = grpc.NewClient(
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socketPath,
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grpc.WithTransportCredentials(insecure.NewCredentials()),
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grpc.WithContextDialer(func(ctx context.Context, addr string) (net.Conn, error) {
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var d net.Dialer
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return d.DialContext(ctx, "unix", addr)
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}),
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)
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if err != nil {
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return result, err
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}
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result.client = pb.NewAgentClient(result.conn)
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if _, err = result.client.Ping(context.Background(), new(emptypb.Empty)); err != nil {
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return result, err
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}
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return result, nil
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}
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func (c CacheConn) Get(ctx context.Context, key string) (string, error) {
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var (
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rpcResult *pb.CacheValue
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err error
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)
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if rpcResult, err = c.client.Get(ctx, &pb.CacheGetRequest{Key: key}); err != nil {
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return "", fmt.Errorf("get from cache: %w", err)
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}
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if rpcResult.Status != "OK" {
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return "", fmt.Errorf("get from cache: status %s with message %s", rpcResult.Status, rpcResult.Message)
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}
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return rpcResult.Value, nil
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}
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func (c CacheConn) Set(ctx context.Context, key string, value string) error {
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rpcStatus, err := c.client.Set(ctx, &pb.CacheSetRequest{Key: key, Value: value})
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if err != nil {
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return fmt.Errorf("set to cache: %w", err)
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}
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if rpcStatus.Status != "OK" {
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return fmt.Errorf("set to cache: status %s with message %s", rpcStatus.Status, rpcStatus.Message)
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}
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return nil
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}
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func (c CacheConn) Shutdown(ctx context.Context) error {
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_, err := c.client.Shutdown(ctx, new(emptypb.Empty))
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if err != nil {
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return fmt.Errorf("shutdown: %w", err)
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}
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return nil
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}
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func (c CacheConn) Close() error {
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return c.conn.Close()
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}
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