go.temporal.io/server/chasm/interceptors.go
67 LOC · 24 covered · 43 uncovered · 4 ranges · 69 concepts · 3 introducers · 14 tests
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package chasm
import (
"context"
"go.temporal.io/server/common/log"
"go.temporal.io/server/common/metrics"
"google.golang.org/grpc"
)
// ChasmEngineInterceptor Interceptor that intercepts RPC requests,
// detects CHASM-specific calls and does additional boilerplate processing before
// handing off. Visibility is injected separately with
// ChasmVisibilityInterceptor.
type ChasmEngineInterceptor struct {
engine Engine
logger log.SnTaggedLogger
metricsHandler metrics.Handler
}
func (i *ChasmEngineInterceptor) Intercept(
ctx context.Context,
req any,
info *grpc.UnaryServerInfo,
handler grpc.UnaryHandler,
// Capture panics for any handler method, not just CHASM-specific ones. This could have gone into a separate
// interceptor, but having it here avoids the overhead of adding another layer to the interceptor chain.
defer metrics.CapturePanic(i.logger, i.metricsHandler, &retError)
ctx = NewEngineContext(ctx, i.engine)
return handler(ctx, req)
}
func ChasmEngineInterceptorProvider(
engine Engine,
logger log.Logger,
metricsHandler metrics.Handler,
return &ChasmEngineInterceptor{
engine: engine,
logger: logger,
metricsHandler: metricsHandler,
}
}
// ChasmVisibilityInterceptor intercepts RPC requests and adds the CHASM
// VisibilityManager to their context.
type ChasmVisibilityInterceptor struct {
visibilityMgr VisibilityManager
}
func (i *ChasmVisibilityInterceptor) Intercept(
ctx context.Context,
req any,
info *grpc.UnaryServerInfo,
handler grpc.UnaryHandler,
ctx = NewVisibilityManagerContext(ctx, i.visibilityMgr)
return handler(ctx, req)
}
func ChasmVisibilityInterceptorProvider(visibilityMgr VisibilityManager) *ChasmVisibilityInterceptor {
interceptors.go ×2
return &ChasmVisibilityInterceptor{
visibilityMgr: visibilityMgr,
}
}