116 lines
3.2 KiB
Go
116 lines
3.2 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 metadata
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import (
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"fmt"
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"math"
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"strconv"
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"time"
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"github.com/pkg/errors"
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)
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const (
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// TTLMetadataKey defines the metadata key for setting a time to live (in seconds).
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TTLMetadataKey = "ttlInSeconds"
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// RawPayloadKey defines the metadata key for forcing raw payload in pubsub.
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RawPayloadKey = "rawPayload"
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// PriorityMetadataKey defines the metadata key for setting a priority.
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PriorityMetadataKey = "priority"
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// ContentType defines the metadata key for the content type.
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ContentType = "contentType"
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// QueryIndexName defines the metadata key for the name of query indexing schema (for redis).
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QueryIndexName = "queryIndexName"
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)
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// TryGetTTL tries to get the ttl as a time.Duration value for pubsub, binding and any other building block.
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func TryGetTTL(props map[string]string) (time.Duration, bool, error) {
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if val, ok := props[TTLMetadataKey]; ok && val != "" {
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valInt64, err := strconv.ParseInt(val, 10, 64)
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if err != nil {
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return 0, false, errors.Wrapf(err, "%s value must be a valid integer: actual is '%s'", TTLMetadataKey, val)
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}
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if valInt64 <= 0 {
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return 0, false, fmt.Errorf("%s value must be higher than zero: actual is %d", TTLMetadataKey, valInt64)
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}
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duration := time.Duration(valInt64) * time.Second
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if duration < 0 {
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// Overflow
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duration = math.MaxInt64
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}
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return duration, true, nil
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}
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return 0, false, nil
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}
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// TryGetPriority tries to get the priority for binding and any other building block.
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func TryGetPriority(props map[string]string) (uint8, bool, error) {
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if val, ok := props[PriorityMetadataKey]; ok && val != "" {
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intVal, err := strconv.Atoi(val)
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if err != nil {
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return 0, false, errors.Wrapf(err, "%s value must be a valid integer: actual is '%s'", PriorityMetadataKey, val)
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}
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priority := uint8(intVal)
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if intVal < 0 {
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priority = 0
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} else if intVal > 255 {
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priority = math.MaxUint8
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}
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return priority, true, nil
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}
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return 0, false, nil
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}
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// IsRawPayload determines if payload should be used as-is.
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func IsRawPayload(props map[string]string) (bool, error) {
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if val, ok := props[RawPayloadKey]; ok && val != "" {
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boolVal, err := strconv.ParseBool(val)
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if err != nil {
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return false, errors.Wrapf(err, "%s value must be a valid boolean: actual is '%s'", RawPayloadKey, val)
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}
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return boolVal, nil
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}
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return false, nil
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}
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func TryGetContentType(props map[string]string) (string, bool) {
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if val, ok := props[ContentType]; ok && val != "" {
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return val, true
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}
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return "", false
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}
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func TryGetQueryIndexName(props map[string]string) (string, bool) {
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if val, ok := props[QueryIndexName]; ok && val != "" {
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return val, true
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}
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return "", false
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}
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