github.com/kaleido-io/firefly@v0.0.0-20210622132723-8b4b6aacb971/internal/blockchain/bifactory/factory.go (about)

     1  // Copyright © 2021 Kaleido, Inc.
     2  //
     3  // SPDX-License-Identifier: Apache-2.0
     4  //
     5  // Licensed under the Apache License, Version 2.0 (the "License");
     6  // you may not use this file except in compliance with the License.
     7  // You may obtain a copy of the License at
     8  //
     9  //     http://www.apache.org/licenses/LICENSE-2.0
    10  //
    11  // Unless required by applicable law or agreed to in writing, software
    12  // distributed under the License is distributed on an "AS IS" BASIS,
    13  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14  // See the License for the specific language governing permissions and
    15  // limitations under the License.
    16  
    17  package bifactory
    18  
    19  import (
    20  	"context"
    21  
    22  	"github.com/kaleido-io/firefly/internal/blockchain/ethereum"
    23  	"github.com/kaleido-io/firefly/internal/blockchain/utdbql"
    24  	"github.com/kaleido-io/firefly/internal/config"
    25  	"github.com/kaleido-io/firefly/internal/i18n"
    26  	"github.com/kaleido-io/firefly/pkg/blockchain"
    27  )
    28  
    29  var plugins = []blockchain.Plugin{
    30  	&ethereum.Ethereum{},
    31  	&utdbql.UTDBQL{},
    32  }
    33  
    34  var pluginsByName = make(map[string]blockchain.Plugin)
    35  
    36  func init() {
    37  	for _, p := range plugins {
    38  		pluginsByName[p.Name()] = p
    39  	}
    40  }
    41  
    42  func InitPrefix(prefix config.Prefix) {
    43  	for _, plugin := range plugins {
    44  		plugin.InitPrefix(prefix.SubPrefix(plugin.Name()))
    45  	}
    46  }
    47  
    48  func GetPlugin(ctx context.Context, pluginType string) (blockchain.Plugin, error) {
    49  	plugin, ok := pluginsByName[pluginType]
    50  	if !ok {
    51  		return nil, i18n.NewError(ctx, i18n.MsgUnknownBlockchainPlugin, pluginType)
    52  	}
    53  	return plugin, nil
    54  }