385 lines
11 KiB
Python
385 lines
11 KiB
Python
"""
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Common support for configurable CORE objects.
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"""
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import logging
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from collections import OrderedDict
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from dataclasses import dataclass, field
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from typing import TYPE_CHECKING, Any, Dict, List, Optional, Set, Tuple, Type, Union
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from core.emane.nodes import EmaneNet
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from core.emulator.enumerations import ConfigDataTypes
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from core.errors import CoreConfigError
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from core.nodes.network import WlanNode
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logger = logging.getLogger(__name__)
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if TYPE_CHECKING:
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from core.location.mobility import WirelessModel
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WirelessModelType = Type[WirelessModel]
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_BOOL_OPTIONS: Set[str] = {"0", "1"}
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@dataclass
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class ConfigGroup:
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"""
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Defines configuration group tabs used for display by ConfigurationOptions.
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"""
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name: str
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start: int
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stop: int
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@dataclass
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class Configuration:
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"""
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Represents a configuration option.
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"""
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id: str
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type: ConfigDataTypes
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label: str = None
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default: str = ""
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options: List[str] = field(default_factory=list)
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group: str = "Configuration"
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def __post_init__(self) -> None:
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self.label = self.label if self.label else self.id
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if self.type == ConfigDataTypes.BOOL:
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if self.default and self.default not in _BOOL_OPTIONS:
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raise CoreConfigError(
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f"{self.id} bool value must be one of: {_BOOL_OPTIONS}: "
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f"{self.default}"
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)
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elif self.type == ConfigDataTypes.FLOAT:
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if self.default:
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try:
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float(self.default)
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except ValueError:
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raise CoreConfigError(
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f"{self.id} is not a valid float: {self.default}"
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)
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elif self.type != ConfigDataTypes.STRING:
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if self.default:
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try:
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int(self.default)
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except ValueError:
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raise CoreConfigError(
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f"{self.id} is not a valid int: {self.default}"
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)
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@dataclass
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class ConfigBool(Configuration):
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"""
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Represents a boolean configuration option.
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"""
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type: ConfigDataTypes = ConfigDataTypes.BOOL
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value: bool = False
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@dataclass
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class ConfigFloat(Configuration):
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"""
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Represents a float configuration option.
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"""
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type: ConfigDataTypes = ConfigDataTypes.FLOAT
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value: float = 0.0
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@dataclass
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class ConfigInt(Configuration):
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"""
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Represents an integer configuration option.
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"""
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type: ConfigDataTypes = ConfigDataTypes.INT32
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value: int = 0
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@dataclass
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class ConfigString(Configuration):
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"""
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Represents a string configuration option.
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"""
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type: ConfigDataTypes = ConfigDataTypes.STRING
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value: str = ""
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class ConfigurableOptions:
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"""
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Provides a base for defining configuration options within CORE.
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"""
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name: Optional[str] = None
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options: List[Configuration] = []
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@classmethod
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def configurations(cls) -> List[Configuration]:
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"""
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Provides the configurations for this class.
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:return: configurations
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"""
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return cls.options
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@classmethod
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def config_groups(cls) -> List[ConfigGroup]:
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"""
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Defines how configurations are grouped.
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:return: configuration group definition
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"""
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return [ConfigGroup("Options", 1, len(cls.configurations()))]
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@classmethod
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def default_values(cls) -> Dict[str, str]:
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"""
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Provides an ordered mapping of configuration keys to default values.
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:return: ordered configuration mapping default values
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"""
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return OrderedDict(
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[(config.id, config.default) for config in cls.configurations()]
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)
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class ConfigurableManager:
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"""
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Provides convenience methods for storing and retrieving configuration options for
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nodes.
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"""
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_default_node: int = -1
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_default_type: int = _default_node
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def __init__(self) -> None:
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"""
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Creates a ConfigurableManager object.
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"""
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self.node_configurations = {}
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def nodes(self) -> List[int]:
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"""
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Retrieves the ids of all node configurations known by this manager.
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:return: list of node ids
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"""
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return [x for x in self.node_configurations if x != self._default_node]
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def config_reset(self, node_id: int = None) -> None:
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"""
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Clears all configurations or configuration for a specific node.
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:param node_id: node id to clear configurations for, default is None and clears
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all configurations
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:return: nothing
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"""
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if not node_id:
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self.node_configurations.clear()
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elif node_id in self.node_configurations:
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self.node_configurations.pop(node_id)
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def set_config(
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self,
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_id: str,
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value: str,
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node_id: int = _default_node,
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config_type: str = _default_type,
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) -> None:
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"""
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Set a specific configuration value for a node and configuration type.
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:param _id: configuration key
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:param value: configuration value
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:param node_id: node id to store configuration for
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:param config_type: configuration type to store configuration for
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:return: nothing
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"""
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node_configs = self.node_configurations.setdefault(node_id, OrderedDict())
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node_type_configs = node_configs.setdefault(config_type, OrderedDict())
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node_type_configs[_id] = value
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def set_configs(
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self,
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config: Dict[str, str],
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node_id: int = _default_node,
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config_type: str = _default_type,
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) -> None:
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"""
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Set configurations for a node and configuration type.
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:param config: configurations to set
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:param node_id: node id to store configuration for
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:param config_type: configuration type to store configuration for
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:return: nothing
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"""
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logger.debug(
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"setting config for node(%s) type(%s): %s", node_id, config_type, config
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)
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node_configs = self.node_configurations.setdefault(node_id, OrderedDict())
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node_configs[config_type] = config
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def get_config(
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self,
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_id: str,
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node_id: int = _default_node,
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config_type: str = _default_type,
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default: str = None,
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) -> str:
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"""
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Retrieves a specific configuration for a node and configuration type.
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:param _id: specific configuration to retrieve
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:param node_id: node id to store configuration for
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:param config_type: configuration type to store configuration for
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:param default: default value to return when value is not found
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:return: configuration value
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"""
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result = default
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node_type_configs = self.get_configs(node_id, config_type)
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if node_type_configs:
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result = node_type_configs.get(_id, default)
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return result
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def get_configs(
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self, node_id: int = _default_node, config_type: str = _default_type
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) -> Optional[Dict[str, str]]:
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"""
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Retrieve configurations for a node and configuration type.
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:param node_id: node id to store configuration for
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:param config_type: configuration type to store configuration for
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:return: configurations
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"""
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result = None
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node_configs = self.node_configurations.get(node_id)
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if node_configs:
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result = node_configs.get(config_type)
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return result
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def get_all_configs(self, node_id: int = _default_node) -> Dict[str, Any]:
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"""
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Retrieve all current configuration types for a node.
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:param node_id: node id to retrieve configurations for
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:return: all configuration types for a node
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"""
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return self.node_configurations.get(node_id)
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class ModelManager(ConfigurableManager):
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"""
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Helps handle setting models for nodes and managing their model configurations.
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"""
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def __init__(self) -> None:
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"""
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Creates a ModelManager object.
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"""
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super().__init__()
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self.models: Dict[str, Any] = {}
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self.node_models: Dict[int, str] = {}
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def set_model_config(
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self, node_id: int, model_name: str, config: Dict[str, str] = None
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) -> None:
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"""
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Set configuration data for a model.
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:param node_id: node id to set model configuration for
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:param model_name: model to set configuration for
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:param config: configuration data to set for model
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:return: nothing
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"""
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# get model class to configure
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model_class = self.models.get(model_name)
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if not model_class:
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raise ValueError(f"{model_name} is an invalid model")
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# retrieve default values
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model_config = self.get_model_config(node_id, model_name)
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if not config:
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config = {}
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for key in config:
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value = config[key]
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model_config[key] = value
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# set as node model for startup
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self.node_models[node_id] = model_name
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# set configuration
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self.set_configs(model_config, node_id=node_id, config_type=model_name)
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def get_model_config(self, node_id: int, model_name: str) -> Dict[str, str]:
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"""
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Retrieve configuration data for a model.
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:param node_id: node id to set model configuration for
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:param model_name: model to set configuration for
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:return: current model configuration for node
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"""
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# get model class to configure
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model_class = self.models.get(model_name)
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if not model_class:
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raise ValueError(f"{model_name} is an invalid model")
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config = self.get_configs(node_id=node_id, config_type=model_name)
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if not config:
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# set default values, when not already set
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config = model_class.default_values()
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self.set_configs(config, node_id=node_id, config_type=model_name)
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return config
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def set_model(
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self,
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node: Union[WlanNode, EmaneNet],
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model_class: "WirelessModelType",
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config: Dict[str, str] = None,
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) -> None:
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"""
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Set model and model configuration for node.
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:param node: node to set model for
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:param model_class: model class to set for node
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:param config: model configuration, None for default configuration
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:return: nothing
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"""
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logger.debug(
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"setting model(%s) for node(%s): %s", model_class.name, node.id, config
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)
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self.set_model_config(node.id, model_class.name, config)
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config = self.get_model_config(node.id, model_class.name)
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node.setmodel(model_class, config)
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def get_models(
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self, node: Union[WlanNode, EmaneNet]
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) -> List[Tuple[Type, Dict[str, str]]]:
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"""
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Return a list of model classes and values for a net if one has been
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configured. This is invoked when exporting a session to XML.
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:param node: network node to get models for
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:return: list of model and values tuples for the network node
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"""
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all_configs = self.get_all_configs(node.id)
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if not all_configs:
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all_configs = {}
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models = []
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for model_name in all_configs:
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config = all_configs[model_name]
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if model_name == ModelManager._default_node:
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continue
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model_class = self.models[model_name]
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models.append((model_class, config))
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logger.debug("models for node(%s): %s", node.id, models)
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return models
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