1 | #============================================================================ |
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2 | # This library is free software; you can redistribute it and/or |
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3 | # modify it under the terms of version 2.1 of the GNU Lesser General Public |
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4 | # License as published by the Free Software Foundation. |
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5 | # |
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6 | # This library is distributed in the hope that it will be useful, |
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7 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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8 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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9 | # Lesser General Public License for more details. |
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10 | # |
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11 | # You should have received a copy of the GNU Lesser General Public |
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12 | # License along with this library; if not, write to the Free Software |
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13 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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14 | #============================================================================ |
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15 | # Copyright (C) 2005 Mike Wray <mike.wray@hp.com> |
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16 | # Copyright (C) 2005 XenSource Ltd. |
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17 | #============================================================================ |
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18 | |
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19 | class Protocol: |
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20 | |
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21 | def __init__(self): |
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22 | self.transport = None |
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23 | |
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24 | def setTransport(self, transport): |
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25 | self.transport = transport |
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26 | |
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27 | def dataReceived(self, data): |
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28 | raise NotImplementedError() |
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29 | |
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30 | def write(self, data): |
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31 | if self.transport: |
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32 | return self.transport.write(data) |
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33 | else: |
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34 | return 0 |
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35 | |
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36 | def read(self): |
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37 | if self.transport: |
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38 | return self.transport.read() |
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39 | else: |
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40 | return None |
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