github.com/m3db/m3@v1.5.0/src/cmd/services/m3coordinator/server/m3msg/config.go (about)

     1  // Copyright (c) 2018 Uber Technologies, Inc.
     2  //
     3  // Permission is hereby granted, free of charge, to any person obtaining a copy
     4  // of this software and associated documentation files (the "Software"), to deal
     5  // in the Software without restriction, including without limitation the rights
     6  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     7  // copies of the Software, and to permit persons to whom the Software is
     8  // furnished to do so, subject to the following conditions:
     9  //
    10  // The above copyright notice and this permission notice shall be included in
    11  // all copies or substantial portions of the Software.
    12  //
    13  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    14  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    15  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    16  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    17  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    18  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    19  // THE SOFTWARE.
    20  
    21  package m3msg
    22  
    23  import (
    24  	"github.com/m3db/m3/src/metrics/policy"
    25  	"github.com/m3db/m3/src/msg/consumer"
    26  	"github.com/m3db/m3/src/x/instrument"
    27  	xio "github.com/m3db/m3/src/x/io"
    28  	"github.com/m3db/m3/src/x/pool"
    29  	"github.com/m3db/m3/src/x/server"
    30  )
    31  
    32  // Configuration configs the m3msg server.
    33  type Configuration struct {
    34  	// Server configs the server.
    35  	Server server.Configuration `yaml:"server"`
    36  
    37  	// Handler configs the handler.
    38  	Handler handlerConfiguration `yaml:"handler"`
    39  
    40  	// Consumer configs the consumer.
    41  	Consumer consumer.Configuration `yaml:"consumer"`
    42  }
    43  
    44  // NewServer creates a new server.
    45  func (c Configuration) NewServer(
    46  	writeFn WriteFn,
    47  	rwOpts xio.Options,
    48  	iOpts instrument.Options,
    49  ) (server.Server, error) {
    50  	scope := iOpts.MetricsScope().Tagged(map[string]string{"server": "m3msg"})
    51  	cOpts := c.Consumer.NewOptions(
    52  		iOpts.SetMetricsScope(scope.Tagged(map[string]string{
    53  			"component": "consumer",
    54  		})),
    55  	)
    56  
    57  	cOpts = cOpts.SetDecoderOptions(cOpts.DecoderOptions().SetRWOptions(rwOpts))
    58  	h, err := c.Handler.newHandler(writeFn, cOpts, iOpts.SetMetricsScope(scope))
    59  	if err != nil {
    60  		return nil, err
    61  	}
    62  	return c.Server.NewServer(
    63  		h,
    64  		iOpts.SetMetricsScope(scope),
    65  	), nil
    66  }
    67  
    68  type handlerConfiguration struct {
    69  	// ProtobufDecoderPool configs the protobuf decoder pool.
    70  	ProtobufDecoderPool pool.ObjectPoolConfiguration `yaml:"protobufDecoderPool"`
    71  	BlackholePolicies   []policy.StoragePolicy       `yaml:"blackholePolicies"`
    72  }
    73  
    74  func (c handlerConfiguration) newHandler(
    75  	writeFn WriteFn,
    76  	cOpts consumer.Options,
    77  	iOpts instrument.Options,
    78  ) (server.Handler, error) {
    79  	p := newProtobufProcessor(Options{
    80  		WriteFn: writeFn,
    81  		InstrumentOptions: iOpts.SetMetricsScope(
    82  			iOpts.MetricsScope().Tagged(map[string]string{
    83  				"handler": "protobuf",
    84  			}),
    85  		),
    86  		ProtobufDecoderPoolOptions: c.ProtobufDecoderPool.NewObjectPoolOptions(iOpts),
    87  		BlockholePolicies:          c.BlackholePolicies,
    88  	})
    89  	return consumer.NewMessageHandler(consumer.SingletonMessageProcessor(p), cOpts), nil
    90  }
    91  
    92  // NewOptions creates handler options.
    93  func (c handlerConfiguration) NewOptions(
    94  	writeFn WriteFn,
    95  	iOpts instrument.Options,
    96  ) Options {
    97  	return Options{
    98  		WriteFn:                    writeFn,
    99  		InstrumentOptions:          iOpts,
   100  		ProtobufDecoderPoolOptions: c.ProtobufDecoderPool.NewObjectPoolOptions(iOpts),
   101  	}
   102  }