Orb/python/orb/mapcreators/toplevel.py
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     1 # Copyright (c) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).
       
     2 # All rights reserved.
       
     3 # This component and the accompanying materials are made available
       
     4 # under the terms of the License "Eclipse Public License v1.0"
       
     5 # which accompanies this distribution, and is available
       
     6 # at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     7 #
       
     8 # Initial Contributors:
       
     9 # Nokia Corporation - initial contribution.
       
    10 #
       
    11 # Contributors:
       
    12 #
       
    13 from __future__ import with_statement
       
    14 try:
       
    15     from xml.etree import cElementTree as etree
       
    16 except ImportError:
       
    17     from xml.etree import ElementTree as etree
       
    18 from orb.lib import xml_decl
       
    19 import logging
       
    20 import os
       
    21 import copy
       
    22 
       
    23 
       
    24 logger = logging.getLogger('orb.mapcreators.toplevel')
       
    25 
       
    26 
       
    27 def component_map_lookup(rel_dir, mapname):
       
    28     "Checks the file system to see if a component level map exists"
       
    29     exists = os.path.exists(os.path.join(rel_dir, mapname))
       
    30     if not exists:
       
    31         logger.debug("Asked for a component map for '%s' but it does not exist" % mapname)
       
    32     return exists
       
    33 
       
    34 
       
    35 class TopLevelMapCreator(object):
       
    36     """
       
    37     Uses the information in a SystemDefinition object to create a top level map that
       
    38     links to all the component level maps together.
       
    39     """
       
    40     def __init__(self, sysdef, rel_dir, lookupmethod=component_map_lookup):
       
    41         self.sysdef = sysdef
       
    42         self._rel_dir = rel_dir
       
    43         self._lookup = lookupmethod
       
    44         self._root = etree.Element("map", title=sysdef.name, id=sysdef.name)
       
    45 
       
    46     def _add_subelems(self, parent, item):
       
    47         return etree.SubElement(parent, "topichead", navtitle=item.name, id=item.id)
       
    48 
       
    49     def getmap(self):
       
    50         def sort(item):
       
    51             return item.name
       
    52         layers = self.sysdef.layers
       
    53         layers.sort(key=sort)
       
    54         for layer in layers:
       
    55             layer_elem = self._add_subelems(self._root, layer)
       
    56             packages = layer.packages
       
    57             packages.sort(key=sort)
       
    58             for package in packages:
       
    59                 pkg_elem = self._add_subelems(layer_elem, package)
       
    60                 collections = package.collections
       
    61                 collections.sort(key=sort)                
       
    62                 for collection in collections:                    
       
    63                     col_elem = self._add_subelems(pkg_elem, collection)
       
    64                     components = collection.components
       
    65                     components.sort(key=sort)
       
    66                     for item in components:                        
       
    67                         if self._lookup(self._rel_dir, "cmp_%s.ditamap" % item.id):
       
    68                             col_header = self._add_subelems(col_elem, item) 
       
    69                             etree.SubElement(col_header, "topicref", navtitle=item.name, href="cmp_%s.ditamap" % item.id, format="ditamap")
       
    70         self._remove_empty_headings()
       
    71         return self._root
       
    72 
       
    73     def write(self, path):
       
    74         with open(path, "w") as f:
       
    75             f.write(xml_decl()+"\n")
       
    76             f.write(etree.tostring(self.getmap()))
       
    77             
       
    78     def _remove_empty_headings(self):
       
    79         new_root = copy.deepcopy(self._root)
       
    80         empty_nodes = True
       
    81         nodes_removed = 0
       
    82         while empty_nodes:
       
    83             nodes_removed = 0
       
    84             for parent, newparent in zip(self._root.getiterator(), new_root.getiterator()):
       
    85                 for child, newchild in zip(parent, newparent):
       
    86                     if len(list(child)) == 0 and not 'href' in child.attrib:
       
    87                         newparent.remove(newchild)
       
    88                         nodes_removed += 1
       
    89             self._root = copy.deepcopy(new_root)
       
    90             if nodes_removed == 0:
       
    91                 empty_nodes = False
       
    92         self._root = new_root  
       
    93 
       
    94 
       
    95 ################################################################
       
    96 # Unit test code
       
    97 ################################################################
       
    98 import unittest
       
    99 from _shared import StubSysdef
       
   100 
       
   101 
       
   102 def mock_component_map_lookup(mapname, rel_dir):
       
   103     return True
       
   104 
       
   105 
       
   106 class TestTopLevelMapCreator(unittest.TestCase):
       
   107     def setUp(self):
       
   108         self.mc = TopLevelMapCreator(StubSysdef(), ".", mock_component_map_lookup)
       
   109         
       
   110     def test_i_create_a_map_root_from_a_system_definition(self):                
       
   111         root = self.mc.getmap()
       
   112         self.assertTrue(root.tag == "map")
       
   113         self.assertTrue(root.attrib['title'] == "Symbian^3")
       
   114         self.assertTrue(root.attrib['id'] == "Symbian^3")
       
   115 
       
   116     def test_i_create_correct_topicheads_from_layers(self):
       
   117         root = self.mc.getmap()
       
   118         self.assertEquals(len(root.findall("topichead")), 1)
       
   119         os_elem = root.findall("topichead")[0]
       
   120         self.assertEqual(os_elem.attrib["navtitle"], "OS")
       
   121         self.assertEqual(os_elem.attrib["id"], "os")
       
   122 
       
   123     def test_i_create_correct_topicheads_from_packages(self):
       
   124         root = self.mc.getmap()
       
   125         os_elem = root.findall("topichead")[0]
       
   126         self.assertEquals(len(os_elem.findall("topichead")), 1)
       
   127         pkg_elem = os_elem.findall("topichead")[0]        
       
   128         self.assertEqual(pkg_elem.attrib["navtitle"], "Kernel and Hardware Services")
       
   129         self.assertEqual(pkg_elem.attrib["id"], "kernelhwsrv")
       
   130 
       
   131     def test_i_create_correct_topicheads_from_collections(self):
       
   132         root = self.mc.getmap()
       
   133         os_elem = root.findall("topichead")[0]
       
   134         pkg_elem = os_elem.findall("topichead")[0]
       
   135         self.assertEquals(len(pkg_elem.findall("topichead")), 1)
       
   136         bootldr_elem = pkg_elem.findall("topichead")[0]
       
   137         self.assertEqual(bootldr_elem.attrib["navtitle"], "Board Boot Loader")
       
   138         self.assertEqual(bootldr_elem.attrib["id"], "brdbootldr")
       
   139 
       
   140     def test_i_create_correct_topicheads_for_components(self):
       
   141         root = self.mc.getmap()
       
   142         os_elem = root.findall("topichead")[0]
       
   143         pkg_elem = os_elem.findall("topichead")[0]
       
   144         com_elem = pkg_elem.findall("topichead")[0]
       
   145         comp_elem_header = com_elem.findall("topichead")[0]        
       
   146         self.assertEqual(comp_elem_header.attrib["navtitle"], "Boot Loader")
       
   147         self.assertEqual(comp_elem_header.attrib["id"], "ubootldr")
       
   148 
       
   149     def test_i_create_correct_topicrefs_from_components(self):
       
   150         root = self.mc.getmap()
       
   151         os_elem = root.findall("topichead")[0]
       
   152         pkg_elem = os_elem.findall("topichead")[0]
       
   153         comp_elem = pkg_elem.findall("topichead")[0]
       
   154         comp_elem_header = comp_elem.findall("topichead")[0]
       
   155         self.assertEquals(len(comp_elem_header.findall("topicref")), 1)
       
   156         ubootldr_elem = comp_elem_header.findall("topicref")[0]
       
   157         self.assertEqual(ubootldr_elem.attrib["navtitle"], "Boot Loader")
       
   158         self.assertEqual(ubootldr_elem.attrib["href"], "cmp_ubootldr.ditamap")
       
   159         self.assertEqual(ubootldr_elem.attrib["format"], "ditamap")
       
   160 
       
   161     def test_i_can_remove_empty_headings_from_a_top_level_map(self):
       
   162         self.mc._root = etree.fromstring(empty_headings_toc)
       
   163         self.mc._remove_empty_headings()
       
   164         self.assertEquals(etree.tostring(self.mc._root), removed_empty_headings_toc)
       
   165 
       
   166     def test_i_sort_the_map(self):
       
   167         root = self.mc.getmap()
       
   168         os_elem = root.findall("topichead")[0]
       
   169         pkg_elem = os_elem.findall("topichead")[0]
       
   170         com_elem = pkg_elem.findall("topichead")[0]
       
   171         comp_elem_header = com_elem.findall("topichead")[0]        
       
   172         self.assertEqual(comp_elem_header.attrib["navtitle"], "Boot Loader")
       
   173         comp_elem_header = com_elem.findall("topichead")[1]        
       
   174         self.assertEqual(comp_elem_header.attrib["navtitle"], "Kernel Architecture")
       
   175 
       
   176 
       
   177 empty_headings_toc = """\
       
   178 <map id="Symbian^3" title="Symbian^3">
       
   179   <topichead id="os" navtitle="OS" >
       
   180     <topichead id="kernelhwsrv" navtitle="Kernel and Hardware Services">
       
   181       <topichead id="brdbootldr" navtitle="Board Boot Loader">
       
   182         <topichead id="ubootldr" navtitle="Boot Loader"/>
       
   183       </topichead>
       
   184       <topichead id="bsptemplate" navtitle="Board Support Package Template">
       
   185         <topichead id="asspandvariant" navtitle="Template ASSP and Variant">
       
   186           <topicref format="ditamap" href="cmp_template_variant.ditamap" navtitle="template_variant" />
       
   187         </topichead>
       
   188       </topichead>      
       
   189     </topichead>
       
   190   </topichead>
       
   191 </map>"""
       
   192 
       
   193 
       
   194 removed_empty_headings_toc = """\
       
   195 <map id="Symbian^3" title="Symbian^3">
       
   196   <topichead id="os" navtitle="OS">
       
   197     <topichead id="kernelhwsrv" navtitle="Kernel and Hardware Services">
       
   198       <topichead id="bsptemplate" navtitle="Board Support Package Template">
       
   199         <topichead id="asspandvariant" navtitle="Template ASSP and Variant">
       
   200           <topicref format="ditamap" href="cmp_template_variant.ditamap" navtitle="template_variant" />
       
   201         </topichead>
       
   202       </topichead>      
       
   203     </topichead>
       
   204   </topichead>
       
   205 </map>"""