52 lines
1.6 KiB
Go
52 lines
1.6 KiB
Go
//
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// Copyright (c) 2019 Intel Corporation
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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package messaging
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import (
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"fmt"
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"strings"
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"github.com/winc-link/hummingbird/internal/pkg/messaging/mqclient/mqtt"
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"github.com/winc-link/hummingbird/internal/pkg/messaging/types"
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)
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const (
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// MQTT messaging implementation
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MQTT = "mqtt"
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// RedisStreams messaging implementation
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// RedisStreams = "redisstreams"
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)
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// NewMessageClient is a factory function to instantiate different message client depending on
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// the "Type" from the configuration
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func NewMessageClient(msgConfig types.MessageBusConfig) (MessageClient, error) {
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if msgConfig.PublishHost.IsHostInfoEmpty() && msgConfig.SubscribeHost.IsHostInfoEmpty() {
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return nil, fmt.Errorf("unable to create messageClient: host info not set")
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}
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switch lowerMsgType := strings.ToLower(msgConfig.Type); lowerMsgType {
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case MQTT:
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return mqtt.NewMQTTClient(msgConfig)
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//case RedisStreams:
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// return streams.NewClient(msgConfig)
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default:
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return nil, fmt.Errorf("unknown message type '%s' requested", msgConfig.Type)
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}
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}
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