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# *******************************************************************************
# * Copyright (c) 2011, 2012 Wind River Systems, Inc. and others.
# * All rights reserved. This program and the accompanying materials
# * are made available under the terms of the Eclipse Public License v1.0
# * which accompanies this distribution, and is available at
# * http://www.eclipse.org/legal/epl-v10.html
# *
# * Contributors:
# * Wind River Systems - initial API and implementation
# *******************************************************************************
from tcf import errors, channel
from tcf.services import filesystem
from tcf.channel.Command import Command
class Status(filesystem.FileSystemException):
def __init__(self, status_or_exception, message=None, attrs=None):
if isinstance(status_or_exception, int):
super(Status, self).__init__(message)
self.status = status_or_exception
self.attrs = attrs
else:
super(Status, self).__init__(status_or_exception)
self.status = errors.TCF_ERROR_OTHER
self.attrs = {}
def getStatus(self):
return self.status
def getErrorCode(self):
return self.attrs.get(errors.ERROR_CODE, 0)
def getAltCode(self):
return self.attrs.get(errors.ERROR_ALT_CODE, 0)
def getAltOrg(self):
return self.attrs.get(errors.ERROR_ALT_ORG)
def getAttributes(self):
return self.attrs
class FileSystemCommand(Command):
def __init__(self, service, command, args):
super(FileSystemCommand, self).__init__(service.channel, service, command, args)
def _toSFError(self, data):
if data is None: return None
error_code = map.get(errors.ERROR_CODE)
cmd = self.getCommandString()
if len(cmd) > 72: cmd = cmd[0, 72] + "..."
s = Status(error_code,
"TCF command exception:" +
"\nCommand: " + cmd +
"\nException: " + self.toErrorString(data) +
"\nError code: " + error_code, map)
caused_by = map.get(errors.ERROR_CAUSED_BY)
if caused_by is not None: s.initCause(self.toError(caused_by, False))
return s
class FileSystemProxy(filesystem.FileSystemService):
def __init__(self, channel):
self.channel = channel
def close(self, handle, done):
assert handle.getService() is self
done = self._makeCallback(done)
id = handle.id
service = self
class CloseCommand(FileSystemCommand):
def __init__(self):
super(CloseCommand, self).__init__(service, "close", (id,))
def done(self, error, args):
s = None
if error:
s = Status(error)
else:
assert len(args) == 1
s = self._toSFError(args[0])
done.doneClose(self.token, s)
return CloseCommand().token
def setstat(self, path, attrs, done):
done = self._makeCallback(done)
dt = _toObject(attrs)
service = self
class SetStatCommand(FileSystemCommand):
def __init__(self):
super(SetStatCommand, self).__init__(service, "setstat", (path, dt))
def done(self, error, args):
s = None
if error:
s = Status(error)
else:
assert len(args) == 1
s = self._toSFError(args[0])
done.doneSetStat(self.token, s)
return SetStatCommand().token
def fsetstat(self, handle, attrs, done):
done = self._makeCallback(done)
assert handle.getService() is self
id = handle.id
dt = _toObject(attrs)
service = self
class FSetStatCommand(FileSystemCommand):
def __init__(self):
super(FSetStatCommand, self).__init__(service, "fsetstat", (id, dt))
def done(self, error, args):
s = None
if error:
s = Status(error)
else:
assert len(args) == 1
s = self._toSFError(args[0])
done.doneSetStat(self.token, s)
return FSetStatCommand().token
def stat(self, path, done):
done = self._makeCallback(done)
service = self
class StatCommand(FileSystemCommand):
def __init__(self):
super(StatCommand, self).__init__(service, "stat", (path,))
def done(self, error, args):
s = None
a = None
if error:
s = Status(error)
else:
assert len(args) == 2
s = self._toSFError(args[0])
if not s: a = _toFileAttrs(args[1])
done.doneStat(self.token, s, a)
return StatCommand().token
def fstat(self, handle, done):
done = self._makeCallback(done)
assert handle.getService() is self
id = handle.id
service = self
class FStatCommand(FileSystemCommand):
def __init__(self):
super(FStatCommand, self).__init__(service, "fstat", (id,))
def done(self, error, args):
s = None
a = None
if error:
s = Status(error)
else:
assert len(args) == 2
s = self._toSFError(args[0])
if not s: a = _toFileAttrs(args[1])
done.doneStat(self.token, s, a)
return FStatCommand().token
def lstat(self, path, done):
done = self._makeCallback(done)
service = self
class LStatCommand(FileSystemCommand):
def __init__(self):
super(LStatCommand, self).__init__(service, "lstat", (path,))
def done(self, error, args):
s = None
a = None
if error:
s = Status(error)
else:
assert len(args) == 2
s = self._toSFError(args[0])
if not s: a = _toFileAttrs(args[1])
done.doneStat(self.token, s, a)
return LStatCommand().token
def mkdir(self, path, attrs, done):
done = self._makeCallback(done)
dt = _toObject(attrs)
service = self
class MkDirCommand(FileSystemCommand):
def __init__(self):
super(MkDirCommand, self).__init__(service, "mkdir", (dt,))
def done(self, error, args):
s = None
if error:
s = Status(error)
else:
assert len(args) == 1
s = self._toSFError(args[0])
done.doneMkDir(self.token, s)
return MkDirCommand().token
def open(self, file_name, flags, attrs, done):
done = self._makeCallback(done)
dt = _toObject(attrs)
service = self
class OpenCommand(FileSystemCommand):
def __init__(self):
super(OpenCommand, self).__init__(service, "open", (file_name, flags, dt))
def done(self, error, args):
s = None
h = None
if error:
s = Status(error)
else:
assert len(args) == 2
s = self._toSFError(args[0])
if not s: h = service._toFileHandle(args[1])
done.doneOpen(self.token, s, h)
return OpenCommand().token
def opendir(self, path, done):
done = self._makeCallback(done)
service = self
class OpenDirCommand(FileSystemCommand):
def __init__(self):
super(OpenDirCommand, self).__init__(service, "opendir", (path,))
def done(self, error, args):
s = None
h = None
if error:
s = Status(error)
else:
assert len(args) == 2
s = self._toSFError(args[0])
if not s: h = service._toFileHandle(args[1])
done.doneOpen(self.token, s, h)
return OpenDirCommand().token
def read(self, handle, offset, len, done):
assert handle.getService() is self
done = self._makeCallback(done)
id = handle.id
service = self
class ReadCommand(FileSystemCommand):
def __init__(self):
super(ReadCommand, self).__init__(service, "read", (id, offset, len))
def done(self, error, args):
s = None
b = None
eof = False
if error:
s = Status(error)
else:
assert len(args) == 3
s = self._toSFError(args[1])
if not s:
b = channel.toByteArray(args[0])
eof = args[2]
done.doneRead(self.token, s, b, eof)
return ReadCommand().token
def readdir(self, handle, done):
assert handle.getService() is self
done = self._makeCallback(done)
id = handle.id
service = self
class ReadDirCommand(FileSystemCommand):
def __init__(self):
super(ReadDirCommand, self).__init__(service, "readdir", (id,))
def done(self, error, args):
s = None
b = None
eof = False
if error:
s = Status(error)
else:
assert len(args) == 3
s = self._toSFError(args[1])
if not s:
b = _toDirEntryArray(args[0])
eof = args[2]
done.doneReadDir(self.token, s, b, eof)
return ReadDirCommand().token
def roots(self, done):
done = self._makeCallback(done)
service = self
class RootCommand(FileSystemCommand):
def __init__(self):
super(RootCommand, self).__init__(service, "roots", None)
def done(self, error, args):
s = None
b = None
if error:
s = Status(error)
else:
assert len(args) == 2
s = self._toSFError(args[1])
if not s:
b = _toDirEntryArray(args[0])
done.doneRoots(self.token, s, b)
return RootCommand().token
def readlink(self, path, done):
done = self._makeCallback(done)
service = self
class ReadLinkCommand(FileSystemCommand):
def __init__(self):
super(ReadLinkCommand, self).__init__(service, "readlink", (path,))
def done(self, error, args):
s = None
p = None
if error:
s = Status(error)
else:
assert len(args) == 2
s = self._toSFError(args[0])
if not s:
p = args[1]
done.doneReadLink(self.token, s, p)
return ReadLinkCommand().token
def realpath(self, path, done):
done = self._makeCallback(done)
service = self
class RealPathCommand(FileSystemCommand):
def __init__(self):
super(RealPathCommand, self).__init__(service, "realpath", (path,))
def done(self, error, args):
s = None
p = None
if error:
s = Status(error)
else:
assert len(args) == 2
s = self._toSFError(args[0])
if not s:
p = args[1]
done.doneRealPath(self.token, s, p)
return RealPathCommand().token
def remove(self, file_name, done):
done = self._makeCallback(done)
service = self
class RemoveCommand(FileSystemCommand):
def __init__(self):
super(RemoveCommand, self).__init__(service, "remove", (file_name,))
def done(self, error, args):
s = None
if error:
s = Status(error)
else:
assert len(args) == 1
s = self._toSFError(args[0])
done.doneRemove(self.token, s)
return RemoveCommand().token
def rename(self, old_path, new_path, done):
done = self._makeCallback(done)
service = self
class RenameCommand(FileSystemCommand):
def __init__(self):
super(RenameCommand, self).__init__(service, "rename", (old_path, new_path))
def done(self, error, args):
s = None
if error:
s = Status(error)
else:
assert len(args) == 1
s = self._toSFError(args[0])
done.doneRename(self.token, s)
return RenameCommand().token
def rmdir(self, path, done):
done = self._makeCallback(done)
service = self
class RmDirCommand(FileSystemCommand):
def __init__(self):
super(RmDirCommand, self).__init__(service, "rmdir", (path,))
def done(self, error, args):
s = None
if error:
s = Status(error)
else:
assert len(args) == 1
s = self._toSFError(args[0])
done.doneRemove(self.token, s)
return RmDirCommand().token
def symlink(self, link_path, target_path, done):
done = self._makeCallback(done)
service = self
class SymLinkCommand(FileSystemCommand):
def __init__(self):
super(SymLinkCommand, self).__init__(service, "symlink", (link_path, target_path))
def done(self, error, args):
s = None
if error:
s = Status(error)
else:
assert len(args) == 1
s = self._toSFError(args[0])
done.doneSymLink(self.token, s)
return SymLinkCommand().token
def write(self, handle, offset, data, data_pos, data_size, done):
assert handle.getService() is self
done = self._makeCallback(done)
id = handle.id
binary = bytearray(data[data_pos:data_pos+data_size])
service = self
class WriteCommand(FileSystemCommand):
def __init__(self):
super(WriteCommand, self).__init__(service, "write", (id, offset, binary))
def done(self, error, args):
s = None
if error:
s = Status(error)
else:
assert len(args) == 1
s = self._toSFError(args[0])
done.doneWrite(self.token, s)
return WriteCommand().token
def copy(self, src_path, dst_path, copy_permissions, copy_uidgid, done):
done = self._makeCallback(done)
service = self
class CopyCommand(FileSystemCommand):
def __init__(self):
super(CopyCommand, self).__init__(service, "copy",
(id, src_path, dst_path, copy_permissions, copy_uidgid))
def done(self, error, args):
s = None
if error:
s = Status(error)
else:
assert len(args) == 1
s = self._toSFError(args[0])
done.doneCopy(self.token, s)
return CopyCommand().token
def user(self, done):
done = self._makeCallback(done)
service = self
class UserCommand(FileSystemCommand):
def __init__(self):
super(UserCommand, self).__init__(service, "user", None)
def done(self, error, args):
s = None
r_uid = 0
e_uid = 0
r_gid = 0
e_gid = 0
home = None
if error:
s = Status(error)
else:
assert len(args) == 5
r_uid, e_uid, r_gid, e_gid, home = args
done.doneUser(self.token, s, r_uid, e_uid, r_gid, e_gid, home)
return UserCommand().token
def _toFileHandle(self, o):
if o is None: return None
return filesystem.FileHandle(self, o)
def _toObject(attrs):
if attrs is None: return None
m = {}
if attrs.attributes is not None: m.update(attrs.attributes)
if (attrs.flags & filesystem.ATTR_SIZE) != 0:
m["Size"] = attrs.size
if (attrs.flags & filesystem.ATTR_UIDGID) != 0:
m["UID"] = attrs.uid
m["GID"] = attrs.gid
if (attrs.flags & filesystem.ATTR_PERMISSIONS) != 0:
m["Permissions"] = attrs.permissions
if (attrs.flags & filesystem.ATTR_ACMODTIME) != 0:
m["ATime"] = attrs.atime
m["MTime"] = attrs.mtime
return m
def _toFileAttrs(m):
if m is None: return None
flags = 0
size = 0
uid = 0
gid = 0
permissions = 0
atime = 0
mtime = 0
n = m.pop("Size", None)
if n is not None:
size = n
flags |= filesystem.ATTR_SIZE
n1 = m.pop("UID", None)
n2 = m.pop("GID", None)
if n1 is not None and n2 is not None:
uid = n1
gid = n2
flags |= filesystem.ATTR_UIDGID
n = m.pop("Permissions", None)
if n is not None:
permissions = n
flags |= filesystem.ATTR_PERMISSIONS
n1 = m.pop("ATime", None)
n2 = m.pop("MTime", None)
if n1 is not None and n2 is not None:
atime = n1
mtime = n2
flags |= filesystem.ATTR_ACMODTIME
return filesystem.FileAttrs(flags, size, uid, gid, permissions, atime, mtime, m)
def _toDirEntryArray(o):
if o is None: return None
res = []
for m in o:
entry = filesystem.DirEntry(m.get("FileName"), m.get("LongName"), _toFileAttrs(m.get("Attrs")))
res.append(entry)
return res
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