[Zope-CVS] CVS: Products/AdaptableStorage/gateway_fs - FSProperties.py:1.1 FSClassificationSection.py:1.7 public.py:1.3

[Shane Hathaway]

Update of /cvs-repository/Products/AdaptableStorage/gateway_fs
In directory cvs.zope.org:/tmp/cvs-serv20380/gateway_fs

Modified Files:
	FSClassificationSection.py public.py 
Added Files:
	FSProperties.py 
Log Message:
Added PropertyManager support.


=== Added File Products/AdaptableStorage/gateway_fs/FSProperties.py ===
##############################################################################
#
# Copyright (c) 2002 Zope Corporation and Contributors.
# All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.0 (ZPL).  A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.
#
##############################################################################
"""Gateway for storing properties.

$Id: FSProperties.py,v 1.1 2003/01/03 22:04:17 shane Exp $
"""

from mapper_public import IGateway, RowSequenceSchema

token_replacements = {
    '\\\\': '\\',
    '\\t': '\t',
    '\\r': '\r',
    '\\n': '\n',
    }

def escape(s):
    return s.replace('\\', '\\\\').replace('\n', '\\n').replace(
        '\r', '\\r').replace('\t', '\\t')

def unescape(s):
    res = []
    pos = 0
    while 1:
        p = s.find('\\', pos)
        if p >= 0:
            res.append(s[pos:p])
            token = s[p:p+2]
            c = token_replacements.get(token)
            if c is not None:
                # known escape sequence
                res.append(c)
            else:
                # unknown sequence
                res.append(token)
            pos = p + 2
        else:
            res.append(s[pos:])
            break
    return ''.join(res)


class FSProperties:

    __implements__ = IGateway

    schema = RowSequenceSchema()
    schema.addField('id', 'string', 1)
    schema.addField('type', 'string')
    schema.addField('data', 'string')

    def __init__(self, fs_conn, section='properties'):
        self.fs_conn = fs_conn
        self.section = section

    def getSchema(self):
        return self.schema

    def load(self, event):
        p = event.getKeychain()[-1]
        text = self.fs_conn.readSection(p, self.section, '')
        res = []
        if text:
            lines = text.split('\n')
            for line in lines:
                if '=' in line:
                    k, v = line.split('=', 1)
                    if ':' in k:
                        k, t = k.split(':', 1)
                    else:
                        t = 'string'
                    res.append((k, t, unescape(v)))
        res.sort()
        return res, tuple(res)

    def store(self, event, state):
        lines = []
        for k, t, v in state:
            lines.append('%s:%s=%s' % (k, t, escape(v)))
        lines.sort()
        text = '\n'.join(lines)
        p = event.getKeychain()[-1]
        self.fs_conn.writeSection(p, self.section, text)
        state = list(state)
        state.sort()
        return tuple(state)



=== Products/AdaptableStorage/gateway_fs/FSClassificationSection.py 1.6 => 1.7 ===
--- Products/AdaptableStorage/gateway_fs/FSClassificationSection.py:1.6	Tue Dec 31 16:47:44 2002
+++ Products/AdaptableStorage/gateway_fs/FSClassificationSection.py	Fri Jan  3 17:04:17 2003
@@ -62,7 +62,6 @@
         for k, v in items:
             text.append('%s=%s' % (k, v))
         text = '\n'.join(text)
-        # Write it only if the rest of the subobject is also stored
         p = event.getKeychain()[-1]
         self.fs_conn.writeSection(p, 'classification', text)
         return text.strip()


=== Products/AdaptableStorage/gateway_fs/public.py 1.2 => 1.3 ===
--- Products/AdaptableStorage/gateway_fs/public.py:1.2	Wed Dec  4 23:18:07 2002
+++ Products/AdaptableStorage/gateway_fs/public.py	Fri Jan  3 17:04:17 2003
@@ -23,5 +23,6 @@
 from FSConnection import FSConnection
 from FSDirectoryItems import FSDirectoryItems
 from FSFileData import FSFileData
+from FSProperties import FSProperties
 from FSSectionData import FSSectionData