Implementation:Microsoft Onnxruntime OrtLoggingLevel

Knowledge Sources	Description
Source File	java/src/main/java/ai/onnxruntime/OrtLoggingLevel.java
Repository	Microsoft/onnxruntime

Domains

• Machine Learning Runtime
• Logging Configuration

Overview

OrtLoggingLevel is a public enum representing the logging severity levels supported by ONNX Runtime. It maps directly to the C API's logging levels and is used when creating an OrtEnvironment to control the verbosity of native runtime log messages.

Description

Five logging levels are defined:

• ORT_LOGGING_LEVEL_VERBOSE (0): Print all log messages.
• ORT_LOGGING_LEVEL_INFO (1): Print info and higher level messages.
• ORT_LOGGING_LEVEL_WARNING (2): Print warning and higher level messages.
• ORT_LOGGING_LEVEL_ERROR (3): Print error messages only.
• ORT_LOGGING_LEVEL_FATAL (4): Print only fatal messages.

The enum provides getValue() for native integer access and mapFromInt(int) for native-to-Java conversion (defaults to VERBOSE for unknown values).

Code Reference

Source Location

// File: java/src/main/java/ai/onnxruntime/OrtLoggingLevel.java
// Package: ai.onnxruntime

Signature

public enum OrtLoggingLevel {
    ORT_LOGGING_LEVEL_VERBOSE(0),
    ORT_LOGGING_LEVEL_INFO(1),
    ORT_LOGGING_LEVEL_WARNING(2),
    ORT_LOGGING_LEVEL_ERROR(3),
    ORT_LOGGING_LEVEL_FATAL(4);

    public int getValue();
    public static OrtLoggingLevel mapFromInt(int logLevel);
}

Import

import ai.onnxruntime.OrtLoggingLevel;

I/O Contract

Inputs

Name	Type	Description
logLevel	int	Native integer logging level to map

Outputs

Name	Type	Description
OrtLoggingLevel	OrtLoggingLevel	The corresponding enum constant
getValue()	int	The native integer value

Usage Examples

import ai.onnxruntime.*;

// Create environment with WARNING level logging
OrtEnvironment env = OrtEnvironment.getEnvironment(
    OrtLoggingLevel.ORT_LOGGING_LEVEL_WARNING, "my-app");

// For production, use ERROR level
OrtEnvironment prodEnv = OrtEnvironment.getEnvironment(
    OrtLoggingLevel.ORT_LOGGING_LEVEL_ERROR);

Related Pages

• OrtEnvironment.java - Uses OrtLoggingLevel during environment creation