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55771ce32d
This PR is intended to merge 4 months of work in the `nexus` feature branch into `main`. The functionality it brings is: - Dispatching Nexus Tasks by namespace and task queue - Internal implementation of the Incoming Service Registry - not yet exposed - Attaching workflow close callbacks on `StartWorkflowExecutionRequest` and processing of those callbacks There's more to come and some of the callback code will be refactored into a new plugin architecture (https://github.com/temporalio/temporal/pull/5446) soon. --------- Co-authored-by: PJ Doerner <[email protected]>
86 lines
2.9 KiB
Go
86 lines
2.9 KiB
Go
// The MIT License
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//
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// Copyright (c) 2020 Temporal Technologies Inc. All rights reserved.
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//
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// Copyright (c) 2020 Uber Technologies, Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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package cassandra
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import (
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"fmt"
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)
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type (
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// FieldNotFoundError is an error type returned when an untyped query return does not contain the expected fields.
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FieldNotFoundError struct {
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Msg string
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}
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)
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func (f FieldNotFoundError) Error() string {
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return f.Msg
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}
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func newFieldNotFoundError(fieldName string, payload map[string]interface{}) error {
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return &FieldNotFoundError{Msg: fmt.Sprintf("Unable to find field '%s' in payload - '%v'", fieldName, payload)}
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}
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type (
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// PersistedTypeMismatchError is an error type returned when a persisted cassandra value does not match the expected type.
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PersistedTypeMismatchError struct {
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Msg string
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}
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)
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func (f PersistedTypeMismatchError) Error() string {
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return f.Msg
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}
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func newPersistedTypeMismatchError(
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fieldName string,
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expectedType interface{},
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received interface{},
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payload map[string]interface{},
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) *PersistedTypeMismatchError {
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return &PersistedTypeMismatchError{
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Msg: fmt.Sprintf("Field '%s' is of type '%T' but expected type '%T' in payload - '%v'",
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fieldName, received, expectedType, payload)}
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}
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// Returns a correctly typed value for fieldName retrieved from a row populated by a MapScan operation.
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// Returns the zero value for the provided type and an appropriate error if the field is not found in
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// the row or if the value cannot be cast to the provided type.
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func getTypedFieldFromRow[T any](fieldName string, row map[string]interface{}) (T, error) {
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var zeroVal T // used as a placeholder for zero value of type T since we can't directly return nil
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raw, ok := row[fieldName]
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if !ok {
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return zeroVal, newFieldNotFoundError(fieldName, row)
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}
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typed, ok := raw.(T)
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if !ok {
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return zeroVal, newPersistedTypeMismatchError(fieldName, typed, raw, row)
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}
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return typed, nil
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}
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