coze-studio/backend/domain/workflow/internal/compose/stream.go

293 lines
8.0 KiB
Go

/*
* Copyright 2025 coze-dev Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package compose
import (
"fmt"
"github.com/cloudwego/eino/compose"
"github.com/coze-dev/coze-studio/backend/domain/workflow/entity"
"github.com/coze-dev/coze-studio/backend/domain/workflow/entity/vo"
"github.com/coze-dev/coze-studio/backend/domain/workflow/internal/nodes"
)
// SetFullSources calculates REAL input sources for a node.
// It may be different from a NodeSchema's InputSources because of the following reasons:
// 1. a inner node under composite node may refer to a field from a node in its parent workflow,
// this is instead routed to and sourced from the inner workflow's start node.
// 2. at the same time, the composite node needs to delegate the input source to the inner workflow.
// 3. also, some node may have implicit input sources not defined in its NodeSchema's InputSources.
func (s *NodeSchema) SetFullSources(allNS map[vo.NodeKey]*NodeSchema, dep *dependencyInfo) error {
fullSource := make(map[string]*nodes.SourceInfo)
var fieldInfos []vo.FieldInfo
for _, s := range dep.staticValues {
fieldInfos = append(fieldInfos, vo.FieldInfo{
Path: s.path,
Source: vo.FieldSource{Val: s.val},
})
}
for _, v := range dep.variableInfos {
fieldInfos = append(fieldInfos, vo.FieldInfo{
Path: v.toPath,
Source: vo.FieldSource{
Ref: &vo.Reference{
VariableType: &v.varType,
FromPath: v.fromPath[1:],
},
},
})
}
for f := range dep.inputsFull {
fieldInfos = append(fieldInfos, vo.FieldInfo{
Path: []string{""},
Source: vo.FieldSource{Ref: &vo.Reference{
FromNodeKey: f,
FromPath: []string{""},
}},
})
}
for f, ms := range dep.inputs {
for _, m := range ms {
fieldInfos = append(fieldInfos, vo.FieldInfo{
Path: m.ToPath(),
Source: vo.FieldSource{Ref: &vo.Reference{
FromNodeKey: f,
FromPath: m.FromPath(),
}},
})
}
}
for f := range dep.inputsNoDirectDependencyFull {
fieldInfos = append(fieldInfos, vo.FieldInfo{
Path: []string{""},
Source: vo.FieldSource{Ref: &vo.Reference{
FromNodeKey: f,
FromPath: []string{""},
}},
})
}
for f, ms := range dep.inputsNoDirectDependency {
for _, m := range ms {
fieldInfos = append(fieldInfos, vo.FieldInfo{
Path: m.ToPath(),
Source: vo.FieldSource{Ref: &vo.Reference{
FromNodeKey: f,
FromPath: m.FromPath(),
}},
})
}
}
for i := range fieldInfos {
fInfo := fieldInfos[i]
path := fInfo.Path
currentSource := fullSource
var (
tInfo *vo.TypeInfo
lastPath string
)
if len(path) > 1 {
tInfo = s.InputTypes[path[0]]
for j := 0; j < len(path)-1; j++ {
if j > 0 {
tInfo = tInfo.Properties[path[j]]
}
if current, ok := currentSource[path[j]]; !ok {
currentSource[path[j]] = &nodes.SourceInfo{
IsIntermediate: true,
FieldType: nodes.FieldNotStream,
TypeInfo: tInfo,
SubSources: make(map[string]*nodes.SourceInfo),
}
} else if !current.IsIntermediate {
return fmt.Errorf("existing sourceInfo for path %s is not intermediate, conflict", path[:j+1])
}
currentSource = currentSource[path[j]].SubSources
}
lastPath = path[len(path)-1]
tInfo = tInfo.Properties[lastPath]
} else {
lastPath = path[0]
tInfo = s.InputTypes[lastPath]
}
// static values or variables
if fInfo.Source.Ref == nil || fInfo.Source.Ref.FromNodeKey == "" {
currentSource[lastPath] = &nodes.SourceInfo{
IsIntermediate: false,
FieldType: nodes.FieldNotStream,
TypeInfo: tInfo,
}
continue
}
fromNodeKey := fInfo.Source.Ref.FromNodeKey
var (
streamType nodes.FieldStreamType
err error
)
if len(fromNodeKey) > 0 {
if fromNodeKey == compose.START {
streamType = nodes.FieldNotStream // TODO: set start node to not stream for now until composite node supports transform
} else {
fromNode, ok := allNS[fromNodeKey]
if !ok {
return fmt.Errorf("node %s not found", fromNodeKey)
}
streamType, err = fromNode.IsStreamingField(fInfo.Source.Ref.FromPath, allNS)
if err != nil {
return err
}
}
}
currentSource[lastPath] = &nodes.SourceInfo{
IsIntermediate: false,
FieldType: streamType,
FromNodeKey: fromNodeKey,
FromPath: fInfo.Source.Ref.FromPath,
TypeInfo: tInfo,
}
}
s.Configs.(map[string]any)["FullSources"] = fullSource
return nil
}
func (s *NodeSchema) IsStreamingField(path compose.FieldPath, allNS map[vo.NodeKey]*NodeSchema) (nodes.FieldStreamType, error) {
if s.Type == entity.NodeTypeExit {
if mustGetKey[nodes.Mode]("Mode", s.Configs) == nodes.Streaming {
if len(path) == 1 && path[0] == "output" {
return nodes.FieldIsStream, nil
}
}
return nodes.FieldNotStream, nil
} else if s.Type == entity.NodeTypeSubWorkflow { // TODO: why not use sub workflow's Mode configuration directly?
subSC := s.SubWorkflowSchema
subExit := subSC.GetNode(entity.ExitNodeKey)
subStreamType, err := subExit.IsStreamingField(path, nil)
if err != nil {
return nodes.FieldNotStream, err
}
return subStreamType, nil
} else if s.Type == entity.NodeTypeVariableAggregator {
if len(path) == 2 { // asking about a specific index within a group
for _, fInfo := range s.InputSources {
if len(fInfo.Path) == len(path) {
equal := true
for i := range fInfo.Path {
if fInfo.Path[i] != path[i] {
equal = false
break
}
}
if equal {
if fInfo.Source.Ref == nil || fInfo.Source.Ref.FromNodeKey == "" {
return nodes.FieldNotStream, nil
}
fromNodeKey := fInfo.Source.Ref.FromNodeKey
fromNode, ok := allNS[fromNodeKey]
if !ok {
return nodes.FieldNotStream, fmt.Errorf("node %s not found", fromNodeKey)
}
return fromNode.IsStreamingField(fInfo.Source.Ref.FromPath, allNS)
}
}
}
} else if len(path) == 1 { // asking about the entire group
var streamCount, notStreamCount int
for _, fInfo := range s.InputSources {
if fInfo.Path[0] == path[0] { // belong to the group
if fInfo.Source.Ref != nil && len(fInfo.Source.Ref.FromNodeKey) > 0 {
fromNode, ok := allNS[fInfo.Source.Ref.FromNodeKey]
if !ok {
return nodes.FieldNotStream, fmt.Errorf("node %s not found", fInfo.Source.Ref.FromNodeKey)
}
subStreamType, err := fromNode.IsStreamingField(fInfo.Source.Ref.FromPath, allNS)
if err != nil {
return nodes.FieldNotStream, err
}
if subStreamType == nodes.FieldMaybeStream {
return nodes.FieldMaybeStream, nil
} else if subStreamType == nodes.FieldIsStream {
streamCount++
} else {
notStreamCount++
}
}
}
}
if streamCount > 0 && notStreamCount == 0 {
return nodes.FieldIsStream, nil
}
if streamCount == 0 && notStreamCount > 0 {
return nodes.FieldNotStream, nil
}
return nodes.FieldMaybeStream, nil
}
}
if s.Type != entity.NodeTypeLLM {
return nodes.FieldNotStream, nil
}
if len(path) != 1 {
return nodes.FieldNotStream, nil
}
outputs := s.OutputTypes
if len(outputs) != 1 && len(outputs) != 2 {
return nodes.FieldNotStream, nil
}
var outputKey string
for key, output := range outputs {
if output.Type != vo.DataTypeString {
return nodes.FieldNotStream, nil
}
if key != "reasoning_content" {
if len(outputKey) > 0 {
return nodes.FieldNotStream, nil
}
outputKey = key
}
}
field := path[0]
if field == "reasoning_content" || field == outputKey {
return nodes.FieldIsStream, nil
}
return nodes.FieldNotStream, nil
}