init version

msgcenterpy/__init__.py

@@ -0,0 +1,97 @@
+"""
+MsgCenterPy - Unified Message Conversion System
+
+A multi-format message conversion system supporting seamless conversion
+between ROS2, Pydantic, Dataclass, JSON, Dict, YAML and JSON Schema.
+"""
+
+__version__ = "0.0.2"
+__license__ = "Apache-2.0"
+
+from msgcenterpy.core.envelope import MessageEnvelope, create_envelope
+from msgcenterpy.core.field_accessor import FieldAccessor
+from msgcenterpy.core.message_center import MessageCenter
+
+# Core imports
+from msgcenterpy.core.message_instance import MessageInstance
+from msgcenterpy.core.type_converter import StandardType, TypeConverter
+from msgcenterpy.core.type_info import ConstraintType, TypeInfo
+from msgcenterpy.core.types import ConversionError, MessageType, ValidationError
+
+# Always available instance
+from msgcenterpy.instances.json_schema_instance import JSONSchemaMessageInstance
+
+# Optional ROS2 instance (with graceful fallback)
+try:
+    from msgcenterpy.instances.ros2_instance import ROS2MessageInstance
+
+    _HAS_ROS2 = True
+except ImportError:
+    _HAS_ROS2 = False
+
+
+# Convenience function
+def get_message_center() -> MessageCenter:
+    """Get the MessageCenter singleton instance."""
+    return MessageCenter.get_instance()
+
+
+# Main exports
+__all__ = [
+    # Version info
+    "__version__",
+    "__license__",
+]
+
+
+def get_version() -> str:
+    """Get the current version of MsgCenterPy."""
+    return __version__
+
+
+def get_package_info() -> dict:
+    """Get package information."""
+    return {
+        "name": "msgcenterpy",
+        "version": __version__,
+        "description": "Unified message conversion system supporting ROS2, Pydantic, Dataclass, JSON, YAML, Dict, and JSON Schema inter-conversion",
+        "license": __license__,
+        "url": "https://github.com/ZGCA-Forge/MsgCenterPy",
+        "keywords": [
+            "message",
+            "conversion",
+            "ros2",
+            "pydantic",
+            "dataclass",
+            "json",
+            "yaml",
+            "mcp",
+        ],
+    }
+
+
+def check_dependencies() -> dict:
+    """Check which optional dependencies are available."""
+    dependencies = {
+        "ros2": False,
+        "jsonschema": False,
+    }
+
+    # Check ROS2
+    try:
+        import rclpy  # type: ignore
+        import rosidl_runtime_py  # type: ignore
+
+        dependencies["ros2"] = True
+    except ImportError:
+        pass
+
+    # Check jsonschema
+    try:
+        import jsonschema  # type: ignore
+
+        dependencies["jsonschema"] = True
+    except ImportError:
+        pass
+
+    return dependencies