| 1 | # python class to support methods on a DIF ... to conform with |
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| 2 | # renderEntity etc ... |
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| 3 | # |
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| 4 | import ElementTree as ET |
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| 5 | from Utilities import * |
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| 6 | from geoUtilities import * |
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| 7 | from People import * |
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| 8 | from ServiceBinding import ServiceBinding |
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| 9 | from secure import AccessControl |
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| 10 | from renderEntity import renderEntity |
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| 11 | from ETxmlView import loadET |
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| 12 | |
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| 13 | class DIF: |
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| 14 | ''' Supports the NASA GCMD DIF format for python operations, |
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| 15 | note ... not a complete implementation, currently minimum to |
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| 16 | show a reasonable piece of content ''' |
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| 17 | def __init__(self,xml,serviceFile='serviceMap.config'): |
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| 18 | '''Initialise a python dif instance based on an xml document ''' |
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| 19 | self.metadataType='DIF' |
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| 20 | try: |
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| 21 | self.elem=loadET(xml) |
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| 22 | self.xml=xml |
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| 23 | except: |
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| 24 | # for some reason we can't parse the document ... |
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| 25 | raise |
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| 26 | self.elem=None |
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| 27 | return |
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| 28 | self.type='DIF' |
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| 29 | self.entryID=wrapGetText(self.elem,'Entry_ID') |
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| 30 | |
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| 31 | self.abstract=wrapGetText(self.elem,'Summary') |
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| 32 | self.name=wrapGetText(self.elem,'Entry_Title') |
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| 33 | self.abbreviation=self.name[0:min(5,len(self.name))] |
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| 34 | self.binding=ServiceBinding(n=self.abbreviation, |
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| 35 | nativeID=DIFid2NDGid(self.entryID),serviceFile=serviceFile) |
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| 36 | #Note that entity.constraints.html is about access control on the metadata, |
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| 37 | #and so we don't populate this here ... |
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| 38 | self.constraints=AccessControl(None) |
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| 39 | |
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| 40 | #need entity.parameters, entity.bbox, entity.timeCoverage, entity.curator, entity.creators ... |
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| 41 | |
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| 42 | #load up all the information about parameters |
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| 43 | self.categories=[] |
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| 44 | self.topics=[] |
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| 45 | self.terms=[] |
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| 46 | self.variables=[] |
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| 47 | self.parameters=[] |
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| 48 | match={'Category':self.categories,'Topic':self.topics,'Term':self.terms, |
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| 49 | 'Variable':self.variables,'Detailed_Variable':self.parameters} |
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| 50 | for level in ['Category','Topic','Term','Variable','Detailed_Variable']: |
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| 51 | for item in self.elem.findall('Parameters/'+level): |
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| 52 | value=item.text |
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| 53 | if value not in match[level]: match[level].append(value) |
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| 54 | |
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| 55 | #load up information about spatial bounding box |
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| 56 | self.bbox=Bounding(self.elem,entity='DIF') |
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| 57 | |
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| 58 | #load up information about temporal extent |
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| 59 | self.timeCoverage=( |
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| 60 | wrapGetText(self.elem,'Temporal_Coverage/Start_Date'), |
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| 61 | wrapGetText(self.elem,'Temporal_Coverage/Stop_Date'), |
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| 62 | wrapGetText(self.elem,'Data_Set_Progress') ) |
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| 63 | |
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| 64 | #Data curator information |
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| 65 | self.centre=DIFcontact(self.elem.find('Data_Center'),ctype='centre') |
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| 66 | self.curator=DIFcontact(self.elem) |
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| 67 | |
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| 68 | #Data Creators |
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| 69 | self.creators=[] |
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| 70 | |
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| 71 | self.services=[] |
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| 72 | f=file('tmplog.log','a') |
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| 73 | for item in self.elem.findall('Related_URL'): |
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| 74 | n=ServiceBinding(self.name,serviceFile=serviceFile) |
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| 75 | self.services.append(n.related(item,DIFid2NDGid(self.entryID))) |
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| 76 | f.write(str(self.services[-1])+self.services[-1].icon()) |
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| 77 | f.close() |
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| 78 | def toHTML(self,config): |
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| 79 | if self.elem is not None: |
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| 80 | renderer=renderEntity(config) |
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| 81 | return renderer.render(self) |
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| 82 | else: |
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| 83 | return '<p>No Valid DIF</p>' |
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| 84 | |
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| 85 | if __name__=="__main__": |
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| 86 | |
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| 87 | f=file('../../../exampleD/spade.xml') |
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| 88 | g=file('../../../exampleD/ucar.xml') |
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| 89 | dif1xml=f.read() |
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| 90 | dif2xml=g.read() |
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| 91 | config=myConfig('browse.config') |
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| 92 | D=DIF(dif1xml,serviceFile='serviceMap.config') |
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| 93 | G=DIF(dif2xml,serviceFile='serviceMap.config') |
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| 94 | y='''<?xml version="1.0" encoding="UTF-8"?> |
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| 95 | <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> |
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| 96 | <html xmlsns="http://www.w3.org/1999/xhtml" xml:lang="en"> |
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| 97 | <head> |
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| 98 | <META http-equiv="Content-Type" content="text/xhtml; charset=iso-8859-1"/> |
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| 99 | <title>%s</title> |
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| 100 | <LINK media="all, screen" href="../layout/style.css" type="text/css" rel="stylesheet"/> |
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| 101 | </head> '''%D.name+D.toHTML(config)+G.toHTML(config) |
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| 102 | f.close() |
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| 103 | f=file('output.html','wb') |
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| 104 | f.write(y) |
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| 105 | print str(D.binding),D.binding.url |
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| 106 | |
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