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GAVO DaCHS
Package gavo :: Package web :: Module metarender :: Class CoverageRenderer
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Class CoverageRenderer

source code

                                       object --+        
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                        grend.CustomTemplateMixin --+    
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                   object --+                       |    
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       nevow.rend.DataFactory --+                   |    
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                   object --+   |                   |    
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     nevow.rend.RenderFactory --+                   |    
                                |                   |    
                   object --+   |                   |    
                            |   |                   |    
      nevow.rend.MacroFactory --+                   |    
                                |                   |    
                   object --+   |                   |    
                            |   |                   |    
 nevow.rend.ConfigurableMixin --+                   |    
                                |                   |    
              nevow.rend.Fragment --+               |    
                                    |               |    
   nevow.rend.ConfigurableFactory --+               |    
                                    |               |    
nevow.rend.FreeformChildMixin --+   |               |    
                                |   |               |    
      nevow.rend.ChildLookupMixin --+               |    
                                    |               |    
                      nevow.rend.Page --+           |    
                                        |           |    
                       object --+       |           |    
                                |       |           |    
           common.CommonRenderers --+   |           |    
                                    |   |           |    
                grend.GavoRenderMixin --+           |    
                                        |           |    
                           grend.GavoPage --+       |    
                                            |       |    
                      grend.ResourceBasedPage --+   |    
                                                |   |    
                           grend.ServiceBasedPage --+    
                                                    |    
                                         MetaRenderer --+
                                                        |
                                                       CoverageRenderer

A renderer returning various forms of a service's spatial coverage.

This will return a 404 if the service doesn't have a coverage.spatial meta (and will bomb out if that isn't a SMoc).

Based on the accept header, it will return a PNG if the client indicates it's interested in that or if it accepts text/html, in which case we assume it's a browser; otherwise, it will produce a MOC in FITS format.

Instance Methods
 
renderHTTP(self, ctx) source code

Inherited from MetaRenderer: data_bibtexentry, data_otherServices, render_ifbibcode, render_ifkey, render_rdInfoLink, render_sortOrder

Inherited from grend.CustomTemplateMixin: getDocFactory

Inherited from grend.ServiceBasedPage: __init__, __provides__, child, data_serviceURL, locateChild, processData, renderer, runService, runServiceWithFormalData

Inherited from grend.ResourceBasedPage: data_rdId

Inherited from nevow.rend.Page: child_, flattenFactory, onPostFailure, onPostSuccess, rememberStuff, renderString, renderSynchronously, webFormPost

Inherited from nevow.rend.Fragment: get, remember, rend

Inherited from nevow.rend.DataFactory: __providedBy__

Inherited from nevow.rend.RenderFactory: render_data, render_mapping, render_sequence, render_string, render_xml

Inherited from nevow.rend.MacroFactory: macro

Inherited from nevow.rend.ConfigurableMixin: getBinding, getBindingNames, getDefault, postForm

Inherited from grend.GavoRenderMixin: data_meta, data_rd, render_authinfo, render_datameta, render_explodableMeta, render_ifadmin, render_ifdata, render_ifmeta, render_ifnodata, render_ifnoslot, render_ifownmeta, render_ifslot, render_intro, render_meta, render_metahtml, render_prependsite, render_withsidebar

Inherited from common.CommonRenderers: render_commonhead, render_getconfig, render_rootlink, render_unicode, render_urlescape

Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __repr__, __setattr__, __sizeof__, __str__, __subclasshook__

Inherited from nevow.rend.ConfigurableFactory: configurable_, configurable_original, locateConfigurable

Inherited from nevow.rend.ChildLookupMixin: childFactory, putChild

Inherited from nevow.rend.FreeformChildMixin: child_freeform_hand

Class Methods
 
returnAPNG(self, request)
returns true if request indicates we're being retrieved by a web browser.		 source code
 
isCacheable(cls, segments, request)
only cache this if we return a PNG.		 source code

Inherited from grend.ResourceBasedPage: isBrowseable, makeAccessURL

Class Variables
  name = 'coverage'
a sentinel for all kinds of undefined values.

Inherited from MetaRenderer: checkedRenderer

Inherited from grend.CustomTemplateMixin: customTemplate

Inherited from grend.ServiceBasedPage: __implemented__, openRenderer

Inherited from grend.ResourceBasedPage: parameterStyle, preferredMethod, resultType, urlUse

Inherited from nevow.rend.Page: addSlash, afterRender, beforeRender, buffered

Inherited from nevow.rend.Fragment: original

Inherited from grend.GavoRenderMixin: macroPackage

Inherited from nevow.rend.ChildLookupMixin: children

Properties

Inherited from grend.CustomTemplateMixin: docFactory

Inherited from object: __class__

Method Details

renderHTTP(self, ctx)

source code 
Overrides: nevow.rend.Page.renderHTTP

isCacheable(cls, segments, request)
Class Method

source code 

only cache this if we return a PNG.

Our caching system doesn't support content negotiation, so we can't keep the FITS (and it's fast to generate, so that doesn't matter so much.

Overrides: grend.ResourceBasedPage.isCacheable

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