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Add a utility for reliably fetching search attributes and memo
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service/history/workflow/relocatable_attributes_fetcher.go
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// The MIT License | ||
// | ||
// Copyright (c) 2020 Temporal Technologies Inc. All rights reserved. | ||
// | ||
// Copyright (c) 2020 Uber Technologies, Inc. | ||
// | ||
// Permission is hereby granted, free of charge, to any person obtaining a copy | ||
// of this software and associated documentation files (the "Software"), to deal | ||
// in the Software without restriction, including without limitation the rights | ||
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
// copies of the Software, and to permit persons to whom the Software is | ||
// furnished to do so, subject to the following conditions: | ||
// | ||
// The above copyright notice and this permission notice shall be included in | ||
// all copies or substantial portions of the Software. | ||
// | ||
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
// THE SOFTWARE. | ||
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package workflow | ||
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import ( | ||
"context" | ||
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commonpb "go.temporal.io/api/common/v1" | ||
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"go.temporal.io/server/common/persistence/visibility/manager" | ||
) | ||
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// RelocatableAttributesFetcher is used to fetch the relocatable attributes from the mutable state. | ||
// Relocatable attributes are attributes that can be moved from the mutable state to the persistence backend. | ||
type RelocatableAttributesFetcher interface { | ||
Fetch( | ||
ctx context.Context, | ||
mutableState MutableState, | ||
) (*RelocatableAttributes, error) | ||
} | ||
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// NewRelocatableAttributesFetcher creates a new instance of a RelocatableAttributesFetcher. | ||
// The manager.VisibilityManager parameter is used to fetch the relocatable attributes from the persistence backend iff | ||
// we already moved them there out from the mutable state. | ||
// The visibility manager is not used if the relocatable attributes are still in the mutable state. | ||
// We detect that the fields have moved by checking if the CloseExecutionVisibilityTask for this workflow execution is | ||
// marked as complete in the mutable state. | ||
// Because the relocatable fields that we push to persistence are never updated thereafter, | ||
// we may cache them on a per-workflow execution basis. | ||
// Currently, there is no cache, but you may provide a manager.VisibilityManager that supports caching to this function | ||
// safely. | ||
// TODO: Add a cache around the visibility manager for the relocatable attributes. | ||
func NewRelocatableAttributesFetcher( | ||
visibilityManager manager.VisibilityManager, | ||
) RelocatableAttributesFetcher { | ||
return &relocatableAttributesFetcher{ | ||
visibilityManager: visibilityManager, | ||
} | ||
} | ||
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// RelocatableAttributes contains workflow attributes that can be moved from the mutable state to the persistence | ||
// backend. | ||
type RelocatableAttributes struct { | ||
Memo *commonpb.Memo | ||
SearchAttributes *commonpb.SearchAttributes | ||
} | ||
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// relocatableAttributesFetcher is the default implementation of RelocatableAttributesFetcher. | ||
type relocatableAttributesFetcher struct { | ||
visibilityManager manager.VisibilityManager | ||
} | ||
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// Fetch fetches the relocatable attributes from the mutable state or the persistence backend. | ||
// First, it checks if the close visibility task is completed. If it is completed, then the relocatable attributes | ||
// are fetched from the persistence backend. Otherwise, the relocatable attributes are fetched from the mutable state. | ||
func (f *relocatableAttributesFetcher) Fetch( | ||
ctx context.Context, | ||
mutableState MutableState, | ||
) (*RelocatableAttributes, error) { | ||
executionInfo := mutableState.GetExecutionInfo() | ||
// If we haven't processed close visibility task yet, then we can fetch the search attributes and memo from the | ||
// mutable state. | ||
if !executionInfo.GetCloseVisibilityTaskCompleted() { | ||
return &RelocatableAttributes{ | ||
Memo: &commonpb.Memo{Fields: executionInfo.Memo}, | ||
SearchAttributes: &commonpb.SearchAttributes{IndexedFields: executionInfo.SearchAttributes}, | ||
}, nil | ||
} | ||
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// If we have processed close visibility task, then we need to fetch the search attributes and memo from the | ||
// persistence backend because we have already deleted them from the mutable state. | ||
executionState := mutableState.GetExecutionState() | ||
visResponse, err := f.visibilityManager.GetWorkflowExecution( | ||
ctx, | ||
&manager.GetWorkflowExecutionRequest{ | ||
NamespaceID: mutableState.GetNamespaceEntry().ID(), | ||
Namespace: mutableState.GetNamespaceEntry().Name(), | ||
RunID: executionState.GetRunId(), | ||
WorkflowID: executionInfo.GetWorkflowId(), | ||
CloseTime: executionInfo.CloseTime, | ||
}, | ||
) | ||
if err != nil { | ||
return nil, err | ||
} | ||
return &RelocatableAttributes{ | ||
Memo: visResponse.Execution.Memo, | ||
SearchAttributes: visResponse.Execution.SearchAttributes, | ||
}, nil | ||
} |
141 changes: 141 additions & 0 deletions
141
service/history/workflow/relocatable_attributes_fetcher_test.go
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// The MIT License | ||
// | ||
// Copyright (c) 2020 Temporal Technologies Inc. All rights reserved. | ||
// | ||
// Copyright (c) 2020 Uber Technologies, Inc. | ||
// | ||
// Permission is hereby granted, free of charge, to any person obtaining a copy | ||
// of this software and associated documentation files (the "Software"), to deal | ||
// in the Software without restriction, including without limitation the rights | ||
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
// copies of the Software, and to permit persons to whom the Software is | ||
// furnished to do so, subject to the following conditions: | ||
// | ||
// The above copyright notice and this permission notice shall be included in | ||
// all copies or substantial portions of the Software. | ||
// | ||
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
// THE SOFTWARE. | ||
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package workflow | ||
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import ( | ||
"context" | ||
"errors" | ||
"testing" | ||
"time" | ||
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"github.com/golang/mock/gomock" | ||
"github.com/stretchr/testify/assert" | ||
"github.com/stretchr/testify/require" | ||
"go.temporal.io/api/common/v1" | ||
"go.temporal.io/api/workflow/v1" | ||
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"go.temporal.io/server/api/persistence/v1" | ||
"go.temporal.io/server/common/persistence/visibility/manager" | ||
"go.temporal.io/server/service/history/tests" | ||
) | ||
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func TestRelocatableAttributesFetcher_Fetch(t *testing.T) { | ||
mutableStateAttributes := &RelocatableAttributes{ | ||
Memo: &common.Memo{Fields: map[string]*common.Payload{ | ||
"memoLocation": {Data: []byte("mutableState")}, | ||
}}, | ||
SearchAttributes: &common.SearchAttributes{IndexedFields: map[string]*common.Payload{ | ||
"searchAttributesLocation": {Data: []byte("mutableState")}, | ||
}}, | ||
} | ||
persistenceAttributes := &RelocatableAttributes{ | ||
Memo: &common.Memo{Fields: map[string]*common.Payload{ | ||
"memoLocation": {Data: []byte("persistence")}, | ||
}}, | ||
SearchAttributes: &common.SearchAttributes{IndexedFields: map[string]*common.Payload{ | ||
"searchAttributesLocation": {Data: []byte("persistence")}, | ||
}}, | ||
} | ||
require.NotEqual(t, mutableStateAttributes.Memo, persistenceAttributes.Memo) | ||
require.NotEqual(t, mutableStateAttributes.SearchAttributes, persistenceAttributes.SearchAttributes) | ||
testErr := errors.New("test error") | ||
for _, c := range []*struct { | ||
Name string | ||
CloseVisibilityTaskCompleted bool | ||
GetWorkflowExecutionErr error | ||
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ExpectedInfo *RelocatableAttributes | ||
ExpectedErr error | ||
}{ | ||
{ | ||
Name: "CloseVisibilityTaskNotComplete", | ||
CloseVisibilityTaskCompleted: false, | ||
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ExpectedInfo: mutableStateAttributes, | ||
}, | ||
{ | ||
Name: "CloseVisibilityTaskCompleted", | ||
CloseVisibilityTaskCompleted: true, | ||
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ExpectedInfo: persistenceAttributes, | ||
}, | ||
{ | ||
Name: "GetWorkflowExecutionErr", | ||
CloseVisibilityTaskCompleted: true, | ||
GetWorkflowExecutionErr: testErr, | ||
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ExpectedErr: testErr, | ||
}, | ||
} { | ||
c := c | ||
t.Run(c.Name, func(t *testing.T) { | ||
t.Parallel() | ||
closeTime := time.Unix(100, 0) | ||
executionInfo := &persistence.WorkflowExecutionInfo{ | ||
Memo: mutableStateAttributes.Memo.Fields, | ||
SearchAttributes: mutableStateAttributes.SearchAttributes.IndexedFields, | ||
CloseVisibilityTaskCompleted: c.CloseVisibilityTaskCompleted, | ||
CloseTime: &closeTime, | ||
WorkflowId: tests.WorkflowID, | ||
} | ||
executionState := &persistence.WorkflowExecutionState{ | ||
RunId: tests.RunID, | ||
} | ||
namespaceEntry := tests.GlobalNamespaceEntry | ||
ctrl := gomock.NewController(t) | ||
visibilityManager := manager.NewMockVisibilityManager(ctrl) | ||
mutableState := NewMockMutableState(ctrl) | ||
mutableState.EXPECT().GetExecutionInfo().Return(executionInfo).AnyTimes() | ||
mutableState.EXPECT().GetNamespaceEntry().Return(namespaceEntry).AnyTimes() | ||
mutableState.EXPECT().GetExecutionState().Return(executionState).AnyTimes() | ||
if c.CloseVisibilityTaskCompleted { | ||
visibilityManager.EXPECT().GetWorkflowExecution(gomock.Any(), &manager.GetWorkflowExecutionRequest{ | ||
NamespaceID: namespaceEntry.ID(), | ||
Namespace: namespaceEntry.Name(), | ||
RunID: tests.RunID, | ||
WorkflowID: tests.WorkflowID, | ||
CloseTime: &closeTime, | ||
}).Return(&manager.GetWorkflowExecutionResponse{ | ||
Execution: &workflow.WorkflowExecutionInfo{ | ||
Memo: persistenceAttributes.Memo, | ||
SearchAttributes: persistenceAttributes.SearchAttributes, | ||
}, | ||
}, c.GetWorkflowExecutionErr) | ||
} | ||
ctx := context.Background() | ||
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fetcher := NewRelocatableAttributesFetcher(visibilityManager) | ||
info, err := fetcher.Fetch(ctx, mutableState) | ||
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if c.ExpectedErr != nil { | ||
require.Error(t, err) | ||
assert.ErrorIs(t, err, c.ExpectedErr) | ||
} else { | ||
require.NoError(t, err) | ||
assert.Equal(t, c.ExpectedInfo, info) | ||
} | ||
}) | ||
} | ||
} |