149 lines
3.7 KiB
Go
149 lines
3.7 KiB
Go
/*
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Copyright 2021 The Dapr Authors
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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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http://www.apache.org/licenses/LICENSE-2.0
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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 jetstream
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import (
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"fmt"
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"strconv"
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"strings"
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"time"
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"github.com/dapr/components-contrib/pubsub"
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)
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type metadata struct {
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natsURL string
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jwt string
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seedKey string
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tlsClientCert string
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tlsClientKey string
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name string
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streamName string
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durableName string
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queueGroupName string
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startSequence uint64
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startTime time.Time
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deliverAll bool
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flowControl bool
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ackWait time.Duration
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maxDeliver int
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backOff []time.Duration
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maxAckPending int
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replicas int
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memoryStorage bool
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rateLimit uint64
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hearbeat time.Duration
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}
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func parseMetadata(psm pubsub.Metadata) (metadata, error) {
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var m metadata
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if v, ok := psm.Properties["natsURL"]; ok && v != "" {
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m.natsURL = v
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} else {
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return metadata{}, fmt.Errorf("missing nats URL")
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}
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m.jwt = psm.Properties["jwt"]
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m.seedKey = psm.Properties["seedKey"]
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if m.jwt != "" && m.seedKey == "" {
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return metadata{}, fmt.Errorf("missing seed key")
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}
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if m.jwt == "" && m.seedKey != "" {
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return metadata{}, fmt.Errorf("missing jwt")
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}
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m.tlsClientCert = psm.Properties["tls_client_cert"]
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m.tlsClientKey = psm.Properties["tls_client_key"]
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if m.tlsClientCert != "" && m.tlsClientKey == "" {
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return metadata{}, fmt.Errorf("missing tls client key")
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}
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if m.tlsClientCert == "" && m.tlsClientKey != "" {
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return metadata{}, fmt.Errorf("missing tls client cert")
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}
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if m.name = psm.Properties["name"]; m.name == "" {
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m.name = "dapr.io - pubsub.jetstream"
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}
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m.durableName = psm.Properties["durableName"]
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if val, ok := psm.Properties["queueGroupName"]; ok && val != "" {
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m.queueGroupName = val
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} else {
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m.queueGroupName = psm.Properties[pubsub.RuntimeConsumerIDKey]
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}
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if v, err := strconv.ParseUint(psm.Properties["startSequence"], 10, 64); err == nil {
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m.startSequence = v
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}
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if v, err := strconv.ParseInt(psm.Properties["startTime"], 10, 64); err == nil {
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m.startTime = time.Unix(v, 0)
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}
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if v, err := strconv.ParseBool(psm.Properties["deliverAll"]); err == nil {
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m.deliverAll = v
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}
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if v, err := strconv.ParseBool(psm.Properties["flowControl"]); err == nil {
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m.flowControl = v
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}
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if v, err := time.ParseDuration(psm.Properties["ackWait"]); err == nil {
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m.ackWait = v
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}
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if v, err := strconv.Atoi(psm.Properties["maxDeliver"]); err == nil {
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m.maxDeliver = v
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}
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backOffSlice := strings.Split(psm.Properties["backOff"], ",")
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var backOff []time.Duration
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for _, item := range backOffSlice {
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trimmed := strings.TrimSpace(item)
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if duration, err := time.ParseDuration(trimmed); err == nil {
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backOff = append(backOff, duration)
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}
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}
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m.backOff = backOff
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if v, err := strconv.Atoi(psm.Properties["maxAckPending"]); err == nil {
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m.maxAckPending = v
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}
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if v, err := strconv.Atoi(psm.Properties["replicas"]); err == nil {
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m.replicas = v
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}
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if v, err := strconv.ParseBool(psm.Properties["memoryStorage"]); err == nil {
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m.memoryStorage = v
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}
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if v, err := strconv.ParseUint(psm.Properties["rateLimit"], 10, 64); err == nil {
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m.rateLimit = v
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}
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if v, err := time.ParseDuration(psm.Properties["hearbeat"]); err == nil {
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m.hearbeat = v
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}
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m.streamName = psm.Properties["streamName"]
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return m, nil
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}
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