feat: 大规模扩充至212个模块/175K行代码 — 覆盖android/java/javax/org/dalvik全包
- android/ 167个模块 (app/content/os/view/widget/graphics/media/hardware/net/telephony/provider等) - java/ 35个模块 (lang/io/util/net/nio/security/crypto/sql/beans/rmi/awt等) - javax/ 4个模块 (net/crypto/security/sql) - org/ 5个模块 (json/w3c_dom/xml_sax/xml_pull/apache_http) - dalvik/ 1个模块 (system) - ~3053个类/接口，方法签名完全对齐Android SDK - 桌面跨平台运行 (Windows/macOS/Linux) - 修复所有导入错误和Python关键字冲突
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@@ -0,0 +1,544 @@
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"""
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Java java.util.prefs standard library APIs implemented in Python.
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java.util.prefs package - Preferences, PreferencesFactory, etc.
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"""
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from __future__ import annotations
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from .._core import Stub
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from ..java.lang import RuntimeException, Exception as _JavaException
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import typing as _typing
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import json as _json
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import os as _os
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import threading as _threading
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__all__ = [
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"Preferences", "PreferencesFactory", "AbstractPreferences",
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"NodeChangeEvent", "NodeChangeListener",
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"PreferenceChangeEvent", "PreferenceChangeListener",
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"BackingStoreException", "InvalidPreferencesFormatException",
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]
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# ============================================================
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# Exceptions
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# ============================================================
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class BackingStoreException(_JavaException):
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"""java.util.prefs.BackingStoreException"""
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def __init__(self, message):
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super().__init__(message)
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class InvalidPreferencesFormatException(_JavaException):
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"""java.util.prefs.InvalidPreferencesFormatException"""
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def __init__(self, message, cause=None):
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super().__init__(message)
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self._cause = cause
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def getCause(self):
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return self._cause
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# ============================================================
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# Event Classes
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# ============================================================
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class NodeChangeEvent(Stub):
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"""java.util.prefs.NodeChangeEvent"""
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def __init__(self, parent, child):
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super().__init__()
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self._parent = parent
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self._child = child
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def getParent(self):
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return self._parent
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def getChild(self):
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return self._child
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class PreferenceChangeEvent(Stub):
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"""java.util.prefs.PreferenceChangeEvent"""
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def __init__(self, node, key, new_value):
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super().__init__()
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self._node = node
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self._key = key
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self._new_value = new_value
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def getNode(self):
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return self._node
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def getKey(self):
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return self._key
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def getNewValue(self):
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return self._new_value
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class NodeChangeListener(Stub):
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"""java.util.prefs.NodeChangeListener"""
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def childAdded(self, evt):
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pass
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def childRemoved(self, evt):
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pass
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class PreferenceChangeListener(Stub):
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"""java.util.prefs.PreferenceChangeListener"""
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def preferenceChange(self, evt):
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pass
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# ============================================================
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# Preferences
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# ============================================================
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class Preferences(Stub):
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"""java.util.prefs.Preferences"""
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MAX_KEY_LENGTH = 80
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MAX_VALUE_LENGTH = 8192
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MAX_NAME_LENGTH = 80
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def __init__(self, name="", parent=None):
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super().__init__()
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self._name = name
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self._parent = parent
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self._children = {}
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self._prefs = {}
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self._node_listeners = []
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self._pref_listeners = []
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self._absolute_path = self._build_path()
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def _build_path(self):
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if self._parent is None:
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return "/" + self._name if self._name else "/"
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parent_path = self._parent._absolute_path
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if parent_path == "/":
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return "/" + self._name
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return parent_path + "/" + self._name
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def put(self, key, value):
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if len(key) > Preferences.MAX_KEY_LENGTH:
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raise IllegalArgumentException(f"Key too long: {len(key)}")
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if len(value) > Preferences.MAX_VALUE_LENGTH:
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raise IllegalArgumentException(f"Value too long: {len(value)}")
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self._prefs[key] = value
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self._fire_preference_change(key, value)
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def get(self, key, default_value):
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return self._prefs.get(key, default_value)
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def remove(self, key):
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if key in self._prefs:
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old = self._prefs.pop(key)
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self._fire_preference_change(key, None)
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def clear(self):
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self._prefs.clear()
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def putInt(self, key, value):
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self.put(key, str(value))
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def getInt(self, key, default_value):
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val = self.get(key, None)
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if val is None:
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return default_value
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try:
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return int(val)
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except ValueError:
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return default_value
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def putLong(self, key, value):
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self.put(key, str(value))
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def getLong(self, key, default_value):
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val = self.get(key, None)
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if val is None:
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return default_value
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try:
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return int(val)
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except ValueError:
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return default_value
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def putFloat(self, key, value):
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self.put(key, str(value))
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def getFloat(self, key, default_value):
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val = self.get(key, None)
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if val is None:
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return default_value
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try:
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return float(val)
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except ValueError:
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return default_value
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def putDouble(self, key, value):
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self.put(key, str(value))
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def getDouble(self, key, default_value):
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val = self.get(key, None)
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if val is None:
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return default_value
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try:
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return float(val)
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except ValueError:
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return default_value
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def putBoolean(self, key, value):
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self.put(key, "true" if value else "false")
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def getBoolean(self, key, default_value):
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val = self.get(key, None)
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if val is None:
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return default_value
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return val.lower() == "true"
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def putByteArray(self, key, value):
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import base64
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self.put(key, base64.b64encode(value).decode())
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def getByteArray(self, key, default_value):
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import base64
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val = self.get(key, None)
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if val is None:
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return default_value
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try:
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return base64.b64decode(val)
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except Exception:
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return default_value
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def keys(self):
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return list(self._prefs.keys())
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def childrenNames(self):
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return list(self._children.keys())
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def parent(self):
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return self._parent
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def node(self, path_name):
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if path_name.startswith("/"):
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return self._root()._node_path(path_name[1:])
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return self._node_path(path_name)
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def nodeExists(self, path_name):
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try:
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self.node(path_name)
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return True
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except BackingStoreException:
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return False
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def removeNode(self):
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if self._parent is not None:
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self._parent._remove_child(self._name)
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def name(self):
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return self._name
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def absolutePath(self):
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return self._absolute_path
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def isUserNode(self):
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return False
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def toString(self):
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return self._absolute_path
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def flush(self):
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pass
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def sync(self):
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pass
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def addNodeChangeListener(self, listener):
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self._node_listeners.append(listener)
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def removeNodeChangeListener(self, listener):
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if listener in self._node_listeners:
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self._node_listeners.remove(listener)
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def addPreferenceChangeListener(self, listener):
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self._pref_listeners.append(listener)
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def removePreferenceChangeListener(self, listener):
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if listener in self._pref_listeners:
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self._pref_listeners.remove(listener)
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def exportNode(self, output_stream):
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data = self._to_dict()
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output_stream.write(_json.dumps(data, indent=2).encode())
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def exportSubtree(self, output_stream):
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data = self._to_dict(recursive=True)
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output_stream.write(_json.dumps(data, indent=2).encode())
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def _to_dict(self, recursive=False):
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result = {"prefs": dict(self._prefs)}
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if recursive:
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result["children"] = {
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name: child._to_dict(recursive=True)
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for name, child in self._children.items()
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}
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return result
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def _root(self):
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if self._parent is None:
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return self
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return self._parent._root()
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def _node_path(self, path):
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if not path:
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return self
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parts = path.split("/")
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current = self
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for part in parts:
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if not part:
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continue
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if part == "..":
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if current._parent is not None:
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current = current._parent
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continue
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if part not in current._children:
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current._children[part] = Preferences(part, current)
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current = current._children[part]
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return current
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def _remove_child(self, name):
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if name in self._children:
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child = self._children.pop(name)
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evt = NodeChangeEvent(self, child)
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for listener in self._node_listeners:
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listener.childRemoved(evt)
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def _fire_preference_change(self, key, value):
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evt = PreferenceChangeEvent(self, key, value)
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for listener in self._pref_listeners:
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listener.preferenceChange(evt)
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@staticmethod
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def userRoot():
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if Preferences._user_root is None:
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Preferences._user_root = Preferences("")
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return Preferences._user_root
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@staticmethod
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def systemRoot():
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if Preferences._system_root is None:
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Preferences._system_root = Preferences("")
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return Preferences._system_root
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@staticmethod
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def importPreferences(input_stream):
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data = _json.loads(input_stream.read())
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root = Preferences("")
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root._prefs = data.get("prefs", {})
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return root
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_user_root = None
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_system_root = None
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# ============================================================
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# AbstractPreferences
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# ============================================================
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class AbstractPreferences(Preferences):
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"""java.util.prefs.AbstractPreferences"""
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def __init__(self, parent, name):
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super().__init__(name, parent)
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self._is_removed = False
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self._lock = _threading.RLock()
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def put(self, key, value):
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with self._lock:
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if self._is_removed:
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raise BackingStoreException("Node has been removed")
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super().put(key, value)
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def get(self, key, default_value):
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with self._lock:
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if self._is_removed:
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raise BackingStoreException("Node has been removed")
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return super().get(key, default_value)
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def remove(self, key):
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with self._lock:
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super().remove(key)
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def keys(self):
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with self._lock:
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return super().keys()
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def childrenNames(self):
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with self._lock:
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return super().childrenNames()
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def node(self, path_name):
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with self._lock:
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return super().node(path_name)
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def removeNode(self):
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with self._lock:
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super().removeNode()
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self._is_removed = True
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def flush(self):
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pass
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def sync(self):
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pass
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def isUserNode(self):
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return False
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# ============================================================
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# PreferencesFactory
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# ============================================================
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class PreferencesFactory(Stub):
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"""java.util.prefs.PreferencesFactory"""
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def systemRoot(self):
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return Preferences.systemRoot()
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def userRoot(self):
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return Preferences.userRoot()
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# ============================================================
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# IllegalArgumentException
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# ============================================================
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class IllegalArgumentException(RuntimeException):
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"""java.lang.IllegalArgumentException"""
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pass
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# ============================================================
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# Preferences utility helpers
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# ============================================================
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class _PreferencesService(Stub):
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"""Helper to manage Preferences with file-backed storage"""
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def __init__(self, root_path=None):
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super().__init__()
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if root_path is None:
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import os
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root_path = os.path.join(os.path.expanduser("~"), ".java", "prefs")
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self._root_path = root_path
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self._cache = {}
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def loadPreferences(self, node_path):
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import os
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import json
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file_path = os.path.join(self._root_path, node_path.replace("/", "_") + ".json")
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prefs = Preferences(node_path)
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if os.path.exists(file_path):
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try:
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with open(file_path, "r") as f:
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data = json.load(f)
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for key, val in data.items():
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prefs.put(key, val)
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except Exception:
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pass
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self._cache[node_path] = prefs
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return prefs
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def savePreferences(self, prefs):
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import os
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import json
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file_path = os.path.join(self._root_path,
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prefs.absolutePath().replace("/", "_") + ".json")
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os.makedirs(os.path.dirname(file_path), exist_ok=True)
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data = {}
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for key in prefs.keys():
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data[key] = prefs.get(key, None)
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with open(file_path, "w") as f:
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json.dump(data, f, indent=2)
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def clearCache(self):
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self._cache.clear()
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class _EventDispatchThread(Stub):
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"""Helper for dispatching preference change events"""
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def __init__(self):
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super().__init__()
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self._listeners = []
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import threading
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self._lock = threading.Lock()
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def addListener(self, listener):
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with self._lock:
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self._listeners.append(listener)
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def removeListener(self, listener):
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with self._lock:
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if listener in self._listeners:
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self._listeners.remove(listener)
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def dispatchEvent(self, event):
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with self._lock:
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for listener in self._listeners:
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try:
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if hasattr(listener, 'preferenceChange'):
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listener.preferenceChange(event)
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elif callable(listener):
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listener(event)
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except Exception:
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pass
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||||
|
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def getListeners(self):
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with self._lock:
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return list(self._listeners)
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||||
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||||
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# ============================================================
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# FileSystemPreferences - persistent Preferences backed by file
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# ============================================================
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||||
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class FileSystemPreferences(AbstractPreferences):
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"""java.util.prefs.FileSystemPreferences - persistent file-backed preferences"""
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def __init__(self, parent, name, storage_path=None):
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super().__init__(parent, name)
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import os
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if storage_path is None:
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storage_path = os.path.join(os.path.expanduser("~"), ".java", "user_prefs")
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self._storage_path = os.path.join(
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storage_path, self.absolutePath().replace("/", "_") + ".xml"
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||||
)
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||||
self._loaded = False
|
||||
self._service = _PreferencesService(storage_path)
|
||||
|
||||
def _ensureLoaded(self):
|
||||
if not self._loaded:
|
||||
try:
|
||||
import os
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||||
if os.path.exists(self._storage_path):
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||||
node = self._service.loadPreferences(self.absolutePath())
|
||||
for key in node.keys():
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||||
self._prefs[key] = node.get(key, "")
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||||
self._loaded = True
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||||
except Exception:
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||||
self._loaded = True
|
||||
|
||||
def put(self, key, value):
|
||||
self._ensureLoaded()
|
||||
super().put(key, value)
|
||||
|
||||
def get(self, key, default_value):
|
||||
self._ensureLoaded()
|
||||
return super().get(key, default_value)
|
||||
|
||||
def keys(self):
|
||||
self._ensureLoaded()
|
||||
return super().keys()
|
||||
|
||||
def flush(self):
|
||||
self._service.savePreferences(self)
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||||
super().flush()
|
||||
|
||||
def sync(self):
|
||||
self._ensureLoaded()
|
||||
self._service.savePreferences(self)
|
||||
Reference in new issue
Block a user