github.com/cs3org/reva/v2@v2.27.7/pkg/rgrpc/todo/pool/option.go (about)

     1  // Copyright 2018-2021 CERN
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  //
    15  // In applying this license, CERN does not waive the privileges and immunities
    16  // granted to it by virtue of its status as an Intergovernmental Organization
    17  // or submit itself to any jurisdiction.
    18  
    19  package pool
    20  
    21  import (
    22  	"github.com/cs3org/reva/v2/pkg/sharedconf"
    23  	rtrace "github.com/cs3org/reva/v2/pkg/trace"
    24  	"go-micro.dev/v4/registry"
    25  	"go.opentelemetry.io/otel/trace"
    26  )
    27  
    28  // Option is used to pass client options
    29  type Option func(opts *ClientOptions)
    30  
    31  // ClientOptions represent additional options (e.g. tls settings) for the grpc clients
    32  type ClientOptions struct {
    33  	tlsMode        TLSMode
    34  	caCert         string
    35  	tracerProvider trace.TracerProvider
    36  	registry       registry.Registry
    37  }
    38  
    39  func (o *ClientOptions) init() error {
    40  	// default to shared settings
    41  	sharedOpt := sharedconf.GRPCClientOptions()
    42  	var err error
    43  
    44  	if o.tlsMode, err = StringToTLSMode(sharedOpt.TLSMode); err != nil {
    45  		return err
    46  	}
    47  	o.caCert = sharedOpt.CACertFile
    48  	o.tracerProvider = rtrace.DefaultProvider()
    49  	return nil
    50  }
    51  
    52  // WithTLSMode allows to set the TLSMode option for grpc clients
    53  func WithTLSMode(v TLSMode) Option {
    54  	return func(o *ClientOptions) {
    55  		o.tlsMode = v
    56  	}
    57  }
    58  
    59  // WithTLSCACert allows to set the CA Certificate for grpc clients
    60  func WithTLSCACert(v string) Option {
    61  	return func(o *ClientOptions) {
    62  		o.caCert = v
    63  	}
    64  }
    65  
    66  // WithTracerProvider allows to set the opentelemetry tracer provider for grpc clients
    67  func WithTracerProvider(v trace.TracerProvider) Option {
    68  	return func(o *ClientOptions) {
    69  		o.tracerProvider = v
    70  	}
    71  }
    72  
    73  // WithRegistry allows to set the registry for service lookup
    74  func WithRegistry(v registry.Registry) Option {
    75  	return func(o *ClientOptions) {
    76  		o.registry = v
    77  	}
    78  }