feat: manually mirror opencoze's code from bytedance

Change-Id: I09a73aadda978ad9511264a756b2ce51f5761adf

backend/domain/workflow/entity/node_meta.go

@@ -0,0 +1,133 @@
+/*
+ * 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 entity
+
+type NodeType string
+
+type NodeTypeMeta struct {
+	ID              int64    `json:"id"`
+	Name            string   `json:"name"`
+	Type            NodeType `json:"type"`
+	Category        string   `json:"category"`
+	Color           string   `json:"color"`
+	Desc            string   `json:"desc"`
+	IconURL         string   `json:"icon_url"`
+	SupportBatch    bool     `json:"support_batch"`
+	Disabled        bool     `json:"disabled,omitempty"`
+	EnUSName        string   `json:"en_us_name,omitempty"`
+	EnUSDescription string   `json:"en_us_description,omitempty"`
+
+	ExecutableMeta
+}
+
+type Category struct {
+	Key      string `json:"key"`
+	Name     string `json:"name"`
+	EnUSName string `json:"en_us_name"`
+}
+
+type StreamingParadigm string
+
+const (
+	Invoke    StreamingParadigm = "invoke"
+	Stream    StreamingParadigm = "stream"
+	Collect   StreamingParadigm = "collect"
+	Transform StreamingParadigm = "transform"
+)
+
+type ExecutableMeta struct {
+	IsComposite          bool                       `json:"is_composite,omitempty"`
+	DefaultTimeoutMS     int64                      `json:"default_timeout_ms,omitempty"` // default timeout in milliseconds, 0 means no timeout
+	PreFillZero          bool                       `json:"pre_fill_zero,omitempty"`
+	PostFillNil          bool                       `json:"post_fill_nil,omitempty"`
+	CallbackEnabled      bool                       `json:"callback_enabled,omitempty"` // is false, Eino framework will inject callbacks for this node
+	MayUseChatModel      bool                       `json:"may_use_chat_model,omitempty"`
+	InputSourceAware     bool                       `json:"input_source_aware,omitempty"` // whether this node needs to know the runtime status of its input sources
+	StreamingParadigms   map[StreamingParadigm]bool `json:"streaming_paradigms,omitempty"`
+	StreamSourceEOFAware bool                       `json:"needs_stream_source_eof,omitempty"` // whether this node needs to be aware stream sources' SourceEOF error
+	/*
+	 IncrementalOutput indicates that the node's output is intended for progressive, user-facing streaming.
+	 This distinguishes nodes that actually stream text to the user (e.g., 'Exit', 'Output')
+	 from those that are merely capable of streaming internally (defined by StreamingParadigms),
+	 whose output is consumed by other nodes.
+	 In essence, nodes with IncrementalOutput are a subset of those defined in StreamingParadigms.
+	 When set to true, stream chunks from the node are persisted in real-time and can be fetched by get_process.
+	*/
+	IncrementalOutput bool `json:"incremental_output,omitempty"`
+}
+
+type PluginNodeMeta struct {
+	PluginID int64    `json:"plugin_id"`
+	NodeType NodeType `json:"node_type"`
+	Category string   `json:"category"`
+	ApiID    int64    `json:"api_id"`
+	ApiName  string   `json:"api_name"`
+	Name     string   `json:"name"`
+	Desc     string   `json:"desc"`
+	IconURL  string   `json:"icon_url"`
+}
+
+type PluginCategoryMeta struct {
+	PluginCategoryMeta int64    `json:"plugin_category_meta"`
+	NodeType           NodeType `json:"node_type"`
+	Category           string   `json:"category"`
+	Name               string   `json:"name"`
+	OnlyOfficial       bool     `json:"only_official"`
+	IconURL            string   `json:"icon_url"`
+}
+
+const (
+	NodeTypeVariableAggregator         NodeType = "VariableAggregator"
+	NodeTypeIntentDetector             NodeType = "IntentDetector"
+	NodeTypeTextProcessor              NodeType = "TextProcessor"
+	NodeTypeHTTPRequester              NodeType = "HTTPRequester"
+	NodeTypeLoop                       NodeType = "Loop"
+	NodeTypeContinue                   NodeType = "Continue"
+	NodeTypeBreak                      NodeType = "Break"
+	NodeTypeVariableAssigner           NodeType = "VariableAssigner"
+	NodeTypeVariableAssignerWithinLoop NodeType = "VariableAssignerWithinLoop"
+	NodeTypeQuestionAnswer             NodeType = "QuestionAnswer"
+	NodeTypeInputReceiver              NodeType = "InputReceiver"
+	NodeTypeOutputEmitter              NodeType = "OutputEmitter"
+	NodeTypeDatabaseCustomSQL          NodeType = "DatabaseCustomSQL"
+	NodeTypeDatabaseQuery              NodeType = "DatabaseQuery"
+	NodeTypeDatabaseInsert             NodeType = "DatabaseInsert"
+	NodeTypeDatabaseDelete             NodeType = "DatabaseDelete"
+	NodeTypeDatabaseUpdate             NodeType = "DatabaseUpdate"
+	NodeTypeKnowledgeIndexer           NodeType = "KnowledgeIndexer"
+	NodeTypeKnowledgeRetriever         NodeType = "KnowledgeRetriever"
+	NodeTypeKnowledgeDeleter           NodeType = "KnowledgeDeleter"
+	NodeTypeEntry                      NodeType = "Entry"
+	NodeTypeExit                       NodeType = "Exit"
+	NodeTypeCodeRunner                 NodeType = "CodeRunner"
+	NodeTypePlugin                     NodeType = "Plugin"
+	NodeTypeCreateConversation         NodeType = "CreateConversation"
+	NodeTypeMessageList                NodeType = "MessageList"
+	NodeTypeClearMessage               NodeType = "ClearMessage"
+	NodeTypeLambda                     NodeType = "Lambda"
+	NodeTypeLLM                        NodeType = "LLM"
+	NodeTypeSelector                   NodeType = "Selector"
+	NodeTypeBatch                      NodeType = "Batch"
+	NodeTypeSubWorkflow                NodeType = "SubWorkflow"
+	NodeTypeJsonSerialization          NodeType = "JsonSerialization"
+	NodeTypeJsonDeserialization        NodeType = "JsonDeserialization"
+)
+
+const (
+	EntryNodeKey = "100001"
+	ExitNodeKey  = "900001"
+)