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PiperOrigin-RevId: 253489161

mediapipe/framework/graph_validation.h

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+// Copyright 2019 The MediaPipe 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.
+//
+// Declares CalculatorGraph, which links Calculators into a directed acyclic
+// graph, and allows its evaluation.
+
+#ifndef MEDIAPIPE_FRAMEWORK_GRAPH_VALIDATION_H_
+#define MEDIAPIPE_FRAMEWORK_GRAPH_VALIDATION_H_
+
+#include "mediapipe/framework/calculator_framework.h"
+#include "mediapipe/framework/port/status.h"
+
+namespace mediapipe {
+
+// Validates a CalculatorGraphConfig, including subgraphs, template graphs,
+// and side-packets.
+class GraphValidation {
+ public:
+  // Validates the specified CalculatorGraphConfig.
+  ::mediapipe::Status Validate(
+      const CalculatorGraphConfig& config,
+      const std::map<std::string, Packet>& side_packets = {}) {
+    return graph_.Initialize(config, side_packets);
+  }
+
+  // Validates the specified CalculatorGraphConfigs.
+  // Template graph and subgraph configs can be specified through
+  // |input_templates|.  Every subgraph must have its graph type specified in
+  // CalclatorGraphConfig.type.  A subgraph can be validated directly by
+  // specifying its type in |graph_type|.  A template graph can be validated
+  // directly by specifying its template arguments in |arguments|.
+  ::mediapipe::Status Validate(
+      const std::vector<CalculatorGraphConfig>& configs,
+      const std::vector<CalculatorGraphTemplate>& templates,
+      const std::map<std::string, Packet>& side_packets = {},
+      const std::string& graph_type = "",
+      const Subgraph::SubgraphOptions* options = nullptr) {
+    return graph_.Initialize(configs, templates, side_packets, graph_type,
+                             options);
+  }
+
+ private:
+  CalculatorGraph graph_;
+};
+
+}  // namespace mediapipe
+
+#endif  // MEDIAPIPE_FRAMEWORK_GRAPH_VALIDATION_H_