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| 1 | +/* |
| 2 | +Copyright IBM Corp. 2016 All Rights Reserved. |
| 3 | +
|
| 4 | +Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | +you may not use this file except in compliance with the License. |
| 6 | +You may obtain a copy of the License at |
| 7 | +
|
| 8 | + http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | +
|
| 10 | +Unless required by applicable law or agreed to in writing, software |
| 11 | +distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | +See the License for the specific language governing permissions and |
| 14 | +limitations under the License. |
| 15 | +*/ |
| 16 | + |
| 17 | +package localconfig |
| 18 | + |
| 19 | +import ( |
| 20 | + "fmt" |
| 21 | + "os" |
| 22 | + "path/filepath" |
| 23 | + "strings" |
| 24 | + "time" |
| 25 | + |
| 26 | + "github.com/hyperledger/fabric/common/viperutil" |
| 27 | + |
| 28 | + "github.com/op/go-logging" |
| 29 | + "github.com/spf13/viper" |
| 30 | +) |
| 31 | + |
| 32 | +var logger = logging.MustGetLogger("configtx/tool/localconfig") |
| 33 | + |
| 34 | +func init() { |
| 35 | + logging.SetLevel(logging.ERROR, "") |
| 36 | +} |
| 37 | + |
| 38 | +// Prefix is the default config prefix for the orderer |
| 39 | +const Prefix string = "CONFIGTX" |
| 40 | + |
| 41 | +// TopLevel contains the genesis structures for use by the provisional bootstrapper |
| 42 | +type TopLevel struct { |
| 43 | + Orderer Orderer |
| 44 | +} |
| 45 | + |
| 46 | +// Orderer contains config which is used for orderer genesis by the provisional bootstrapper |
| 47 | +type Orderer struct { |
| 48 | + OrdererType string |
| 49 | + Addresses []string |
| 50 | + BatchTimeout time.Duration |
| 51 | + BatchSize BatchSize |
| 52 | + Kafka Kafka |
| 53 | +} |
| 54 | + |
| 55 | +// BatchSize contains configuration affecting the size of batches |
| 56 | +type BatchSize struct { |
| 57 | + MaxMessageCount uint32 |
| 58 | + AbsoluteMaxBytes uint32 |
| 59 | + PreferredMaxBytes uint32 |
| 60 | +} |
| 61 | + |
| 62 | +// Kafka contains config for the Kafka orderer |
| 63 | +type Kafka struct { |
| 64 | + Brokers []string |
| 65 | +} |
| 66 | + |
| 67 | +var genesisDefaults = TopLevel{ |
| 68 | + Orderer: Orderer{ |
| 69 | + OrdererType: "solo", |
| 70 | + Addresses: []string{"127.0.0.1:7050"}, |
| 71 | + BatchTimeout: 10 * time.Second, |
| 72 | + BatchSize: BatchSize{ |
| 73 | + MaxMessageCount: 10, |
| 74 | + AbsoluteMaxBytes: 100000000, |
| 75 | + PreferredMaxBytes: 512 * 1024, |
| 76 | + }, |
| 77 | + Kafka: Kafka{ |
| 78 | + Brokers: []string{"127.0.0.1:9092"}, |
| 79 | + }, |
| 80 | + }, |
| 81 | +} |
| 82 | + |
| 83 | +func (g *TopLevel) completeInitialization() { |
| 84 | + for { |
| 85 | + switch { |
| 86 | + case g.Orderer.OrdererType == "": |
| 87 | + logger.Infof("Orderer.OrdererType unset, setting to %s", genesisDefaults.Orderer.OrdererType) |
| 88 | + g.Orderer.OrdererType = genesisDefaults.Orderer.OrdererType |
| 89 | + case g.Orderer.Addresses == nil: |
| 90 | + logger.Infof("Orderer.Addresses unset, setting to %s", genesisDefaults.Orderer.Addresses) |
| 91 | + g.Orderer.Addresses = genesisDefaults.Orderer.Addresses |
| 92 | + case g.Orderer.BatchTimeout == 0: |
| 93 | + logger.Infof("Orderer.BatchTimeout unset, setting to %s", genesisDefaults.Orderer.BatchTimeout) |
| 94 | + g.Orderer.BatchTimeout = genesisDefaults.Orderer.BatchTimeout |
| 95 | + case g.Orderer.BatchTimeout == 0: |
| 96 | + logger.Infof("Orderer.BatchTimeout unset, setting to %s", genesisDefaults.Orderer.BatchTimeout) |
| 97 | + g.Orderer.BatchTimeout = genesisDefaults.Orderer.BatchTimeout |
| 98 | + case g.Orderer.BatchSize.MaxMessageCount == 0: |
| 99 | + logger.Infof("Orderer.BatchSize.MaxMessageCount unset, setting to %s", genesisDefaults.Orderer.BatchSize.MaxMessageCount) |
| 100 | + g.Orderer.BatchSize.MaxMessageCount = genesisDefaults.Orderer.BatchSize.MaxMessageCount |
| 101 | + case g.Orderer.BatchSize.AbsoluteMaxBytes == 0: |
| 102 | + logger.Infof("Orderer.BatchSize.AbsoluteMaxBytes unset, setting to %s", genesisDefaults.Orderer.BatchSize.AbsoluteMaxBytes) |
| 103 | + g.Orderer.BatchSize.AbsoluteMaxBytes = genesisDefaults.Orderer.BatchSize.AbsoluteMaxBytes |
| 104 | + case g.Orderer.BatchSize.PreferredMaxBytes == 0: |
| 105 | + logger.Infof("Orderer.BatchSize.PreferredMaxBytes unset, setting to %s", genesisDefaults.Orderer.BatchSize.PreferredMaxBytes) |
| 106 | + g.Orderer.BatchSize.PreferredMaxBytes = genesisDefaults.Orderer.BatchSize.PreferredMaxBytes |
| 107 | + case g.Orderer.Kafka.Brokers == nil: |
| 108 | + logger.Infof("Orderer.Kafka.Brokers unset, setting to %v", genesisDefaults.Orderer.Kafka.Brokers) |
| 109 | + g.Orderer.Kafka.Brokers = genesisDefaults.Orderer.Kafka.Brokers |
| 110 | + default: |
| 111 | + return |
| 112 | + } |
| 113 | + } |
| 114 | +} |
| 115 | + |
| 116 | +func Load() *TopLevel { |
| 117 | + config := viper.New() |
| 118 | + |
| 119 | + config.SetConfigName("genesis") |
| 120 | + |
| 121 | + var cfgPath string |
| 122 | + |
| 123 | + // Path to look for the config file in based on ORDERER_CFG_PATH and GOPATH |
| 124 | + searchPath := os.Getenv("ORDERER_CFG_PATH") + ":" + os.Getenv("GOPATH") |
| 125 | + for _, p := range filepath.SplitList(searchPath) { |
| 126 | + genesisPath := filepath.Join(p, "src/github.com/hyperledger/fabric/common/configtx/tool/") |
| 127 | + if _, err := os.Stat(filepath.Join(genesisPath, "genesis.yaml")); err != nil { |
| 128 | + // The yaml file does not exist in this component of the go src |
| 129 | + continue |
| 130 | + } |
| 131 | + cfgPath = genesisPath |
| 132 | + } |
| 133 | + if cfgPath == "" { |
| 134 | + logger.Fatalf("Could not find genesis.yaml, try setting GOPATH correctly") |
| 135 | + } |
| 136 | + config.AddConfigPath(cfgPath) // Path to look for the config file in |
| 137 | + |
| 138 | + // for environment variables |
| 139 | + config.SetEnvPrefix(Prefix) |
| 140 | + config.AutomaticEnv() |
| 141 | + replacer := strings.NewReplacer(".", "_") |
| 142 | + config.SetEnvKeyReplacer(replacer) |
| 143 | + |
| 144 | + err := config.ReadInConfig() |
| 145 | + if err != nil { |
| 146 | + panic(fmt.Errorf("Error reading %s plugin config from %s: %s", Prefix, cfgPath, err)) |
| 147 | + } |
| 148 | + |
| 149 | + var uconf TopLevel |
| 150 | + |
| 151 | + err = viperutil.EnhancedExactUnmarshal(config, &uconf) |
| 152 | + if err != nil { |
| 153 | + panic(fmt.Errorf("Error unmarshaling into structure: %s", err)) |
| 154 | + } |
| 155 | + |
| 156 | + uconf.completeInitialization() |
| 157 | + |
| 158 | + return &uconf |
| 159 | +} |
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