项目记录 -- config2html 理解

 1 <table width=1280 border=0 cellspacing=1 cellpadding=1>
 2     <tr id=tblhdr>
 3         <td><b>pool: {{ d[‘pool‘]}} </b></td>
 4     </tr>
 5     <tr id=row1><td>state: {{ d[‘state‘]}} </td></tr>
 6     <tr id=row1><td>errors: {{ d[‘errors‘] }} </td></tr>
 7     <tr id=row1><td>scan: {{ ‘‘.join(d[‘scan‘]) }} </td></tr>
 8     <tr id=row1><td>config: </td></tr>
 9     <table width=800>
10         {% raw config2html(d[‘pool‘], d[‘config‘][‘topvdev‘], 0, None) %}
11         {% if d[‘config‘][‘logs‘] %}
12             {% raw config2html(d[‘pool‘], d[‘config‘][‘logs‘], 0, None) %}
13         {% end %}
14         {% if d[‘config‘][‘cache‘] %}
15             {% raw config2html(d[‘pool‘], d[‘config‘][‘cache‘], 0, None) %}
16         {% end %}
17         {% if d[‘config‘][‘spares‘] %}
18             {% raw config2html(d[‘pool‘], d[‘config‘][‘spares‘], 0, None) %}
19         {% end %}
20     </table>
21 </table>

  1 class ZpoolMoreHandler(tornado.web.RequestHandler):
  2     def config2html(self, poolname, vdev, depth, l, vtype=None):
  3         d = vdev[‘this‘]
  4         if depth == 0:
  5             depth = 8
  6             if d[‘name‘] == ‘logs‘ or d[‘name‘] == ‘cache‘  7                or d[‘name‘] == ‘spares‘:
  8                 l = []
  9             elif d[‘name‘] == poolname:
 10                 l = [‘<tr id=row1>‘,
 11                     ‘<td>‘, ‘&nbsp;‘*depth, ‘NAME‘, ‘</td>‘,
 12                     ‘<td>‘, ‘STATE‘, ‘</td>‘,
 13                      ‘</tr>‘
 14                     ]
 15         if d[‘name‘] == poolname:
 16             action = ‘‘
 17             vtype = ‘root‘
 18         elif d[‘name‘] in [‘logs‘, ‘cache‘, ‘spares‘]:
 19             action = ‘‘
 20             vtype = ‘log‘
 21         elif d[‘name‘].startswith(‘raidz‘):
 22             action = ‘‘
 23             vtype = ‘raidz‘
 24         elif d[‘name‘].startswith(‘mirror‘):
 25             action = ‘‘
 26             vtype = ‘mirror‘
 27         elif d[‘name‘].startswith(‘replac‘):
 28             action = ‘‘
 29             vtype = ‘mirror‘
 30         elif d[‘name‘].startswith(‘spar‘):
 31             action = ‘‘
 32             vtype = ‘mirror‘
 33         elif vtype == ‘root‘:
 34             action = ‘<a style="color:#0000ff"  35                 href="/Manage/vdevreplace?poolname=%s&old=%s">  36                 Replace</a>&nbsp;&nbsp;‘ %(poolname, d[‘name‘])
 37             if d[‘state‘] == ‘ONLINE‘:
 38                 action += ‘<a style="color:#0000ff"  39                     href="/Manage/vdevoffline?poolname=%s&vdev=%s">  40                     Offline</a>&nbsp;&nbsp;‘ %(poolname, d[‘name‘])
 41             else:
 42                 action += ‘<a style="color:#0000ff"  43                     href="/Manage/vdevonline?poolname=%s&vdev=%s">  44                     Online</a>&nbsp;&nbsp;‘ %(poolname, d[‘name‘])
 45             action += ‘<a style="color:#0000ff"  46                 href="/Manage/vdevattach?poolname=%s&old=%s">  47                 Attach</a>&nbsp;&nbsp;‘ %(poolname, d[‘name‘])
 48         elif vtype == ‘raidz‘:
 49             action = ‘<a style="color:#0000ff"  50                 href="/Manage/vdevreplace?poolname=%s&old=%s">  51                 Replace</a>&nbsp;&nbsp;‘ %(poolname, d[‘name‘])
 52             if d[‘state‘] == ‘ONLINE‘:
 53                 action += ‘<a style="color:#0000ff"  54                     href="/Manage/vdevoffline?poolname=%s&vdev=%s">  55                     Offline</a>&nbsp;&nbsp;‘ %(poolname, d[‘name‘])
 56             else:
 57                 action += ‘<a style="color:#0000ff"  58                     href="/Manage/vdevonline?poolname=%s&vdev=%s">  59                     Online</a>&nbsp;&nbsp;‘ %(poolname, d[‘name‘])
 60         elif vtype == ‘mirror‘:
 61             action = ‘<a style="color:#0000ff"  62                 href="/Manage/vdevreplace?poolname=%s&old=%s">  63                 Replace</a>&nbsp;&nbsp;‘ %(poolname, d[‘name‘])
 64             if d[‘state‘] == ‘ONLINE‘:
 65                 action += ‘<a style="color:#0000ff"  66                     href="/Manage/vdevoffline?poolname=%s&vdev=%s">  67                     Offline</a>&nbsp;&nbsp;‘ %(poolname, d[‘name‘])
 68             else:
 69                 action += ‘<a style="color:#0000ff"  70                     href="/Manage/vdevonline?poolname=%s&vdev=%s">  71                     Online</a>&nbsp;&nbsp;‘ %(poolname, d[‘name‘])
 72             action += ‘<a style="color:#0000ff"  73                 href="/Manage/vdevattach?poolname=%s&old=%s">  74                 Attach</a>&nbsp;&nbsp;‘ %(poolname, d[‘name‘])
 75             action += ‘<a style="color:#0000ff"  76                 href="/Manage/vdevdetach?poolname=%s&vdev=%s">  77                 Detach</a>&nbsp;&nbsp;‘ %(poolname, d[‘name‘])
 78         elif vtype == ‘log‘:
 79             action = ‘<a style="color:#0000ff"  80                 href="/Manage/vdevreplace?poolname=%s&old=%s">  81                 Replace</a>&nbsp;&nbsp;‘ %(poolname, d[‘name‘])
 82             if d[‘state‘] == ‘ONLINE‘ or d[‘state‘] == ‘AVAIL‘:
 83                 action += ‘<a style="color:#0000ff"  84                     href="/Manage/vdevoffline?poolname=%s&vdev=%s">  85                     Offline</a>&nbsp;&nbsp;‘ %(poolname, d[‘name‘])
 86             else:
 87                 action += ‘<a style="color:#0000ff"  88                     href="/Manage/vdevonline?poolname=%s&vdev=%s">  89                     Online</a>&nbsp;&nbsp;‘ %(poolname, d[‘name‘])
 90             action += ‘<a style="color:#0000ff"  91                 href="/Manage/vdevremove?poolname=%s&vdev=%s">  92                 Remove</a>&nbsp;&nbsp;‘ %(poolname, d[‘name‘])
 93 
 94         if ‘disk‘ in d:
 95             diskinfo = d[‘disk‘]
 96             vdevname = ‘e‘+diskinfo[‘enclosure‘]+‘s‘+diskinfo[‘bay‘]+ ‘, ‘ 97                     + diskinfo[‘logical-disk‘] + ‘, ‘
 98             if diskinfo[‘capacity‘] != "N/A":
 99                 vdevname += str(int(diskinfo[‘capacity‘])>>30) + ‘GiB‘
100         else:
101             vdevname = d[‘name‘]
102 
103         l.append(‘<tr id=row1>‘ +
104                 ‘<td>‘ + ‘&nbsp;‘*depth + vdevname + ‘</td>‘ + 
105                 ‘<td>‘ + d[‘state‘] + ‘</td>‘ +
106                 ‘<td>‘ + action + ‘</td>‘ +
107              ‘</tr>‘)
108         for c in vdev[‘children‘]:
109             self.config2html(poolname, c, depth+4, l, vtype)
110         if depth == 8:
111             return ‘‘.join(l)
112 
113     def get(self):
114         import xmlrpc.client
115         s = xmlrpc.client.ServerProxy(LocalRpcSvcAddr)
116         name = self.get_argument(‘name‘, ‘‘)
117         if name:
118             status = s.zpoolstatus(name)
119             if not status:
120                 message=‘状态信息不可用，请重试.‘
121                 self.write("<script language=javascript> alert(‘%s‘);</script>"
122                            % message)
123                 return
124 
125             self.render("zpoolmore.htm", d=status, config2html=self.config2html)