Add first version of protection manager

freqtrade/plugins/protectionmanager.py

@@ -0,0 +1,51 @@
+"""
+Protection manager class
+"""
+import logging
+from typing import Dict, List
+
+from freqtrade.exceptions import OperationalException
+from freqtrade.plugins.protections import IProtection
+from freqtrade.resolvers import ProtectionResolver
+
+
+logger = logging.getLogger(__name__)
+
+
+class ProtectionManager():
+
+    def __init__(self, exchange, config: dict) -> None:
+        self._exchange = exchange
+        self._config = config
+
+        self._protection_handlers: List[IProtection] = []
+        self._tickers_needed = False
+        for protection_handler_config in self._config.get('protections', None):
+            if 'method' not in protection_handler_config:
+                logger.warning(f"No method found in {protection_handler_config}, ignoring.")
+                continue
+            protection_handler = ProtectionResolver.load_protection(
+                protection_handler_config['method'],
+                exchange=exchange,
+                protectionmanager=self,
+                config=config,
+                protection_config=protection_handler_config,
+            )
+            self._tickers_needed |= protection_handler.needstickers
+            self._protection_handlers.append(protection_handler)
+
+        if not self._protection_handlers:
+            raise OperationalException("No protection Handlers defined")
+
+    @property
+    def name_list(self) -> List[str]:
+        """
+        Get list of loaded Protection Handler names
+        """
+        return [p.name for p in self._protection_handlers]
+
+    def short_desc(self) -> List[Dict]:
+        """
+        List of short_desc for each Pairlist Handler
+        """
+        return [{p.name: p.short_desc()} for p in self._pairlist_handlers]

freqtrade/plugins/protections/__init__.py

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+# flake8: noqa: F401
+from freqtrade.plugins.protections.iprotection import IProtection

freqtrade/plugins/protections/iprotection.py

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+
+import logging
+from abc import ABC, abstractmethod
+from typing import Any, Dict
+
+
+logger = logging.getLogger(__name__)
+
+
+class IProtection(ABC):
+
+    def __init__(self, config: Dict[str, Any]) -> None:
+        self._config = config
+
+    @property
+    def name(self) -> str:
+        return self.__class__.__name__
+
+    @abstractmethod
+    def short_desc(self) -> str:
+        """
+        Short method description - used for startup-messages
+        -> Please overwrite in subclasses
+        """