source: mauRepo/HPFos/trunk/src/HPFos/view/view.py @ 8355

'''
BSD Licence
Copyright (c) 2012, Science & Technology Facilities Council (STFC)
All rights reserved.

Redistribution and use in source and binary forms, with or without modification, 
are permitted provided that the following conditions are met:

    * Redistributions of source code must retain the above copyright notice, 
        this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above copyright notice,
        this list of conditions and the following disclaimer in the documentation
        and/or other materials provided with the distribution.
    * Neither the name of the Science & Technology Facilities Council (STFC) 
        nor the names of its contributors may be used to endorse or promote 
        products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 
OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Created on 1 Nov 2011

@author: Maurizio Nagni
'''
from django.shortcuts import render_to_response
from django.core.context_processors import csrf
from django.utils.safestring import mark_safe
from HPFos.settings import os_engine
from HPFos.osImpl.myimpl import COLLECTION, OBSERVATION, RESULT

hostURL = 'http://localhost:8000'

def _buildHostURL(request):
    if request.is_secure():
        return 'https://%s' % (request.get_host())
    else:
        return 'http://%s' % (request.get_host())

def getHome(request):
    context = {}
    context['hostURL'] = _buildHostURL(request)
    return _dispatchResponse(request, 'homeTemplate', context)

def getDescription(request, collection_guid = None, observation_guid = None, result_guid = None):
    ospath = _buildDescriptionOsPath(collection_guid, observation_guid, result_guid)
    response = os_engine.getDescription(ospath)
    context = {}
    context['response'] = mark_safe(response)
    return _dispatchResponse(request, 'responseTemplate', context)

def _doSearch(request, iformat, collection_guid = None, observation_guid = None, result_guid = None):
    host = _buildHostURL(request)   
    #params = {'q': ['ice', 'snow']}
    params = request.GET.copy()
    if collection_guid:
        params[COLLECTION] = collection_guid    
    if observation_guid:
        params[OBSERVATION] = observation_guid        
    if result_guid:
        params[RESULT] = result_guid                
    
    response = os_engine.doSearch(hostURL, iformat, params_values = params, moles3EPB = request.moles3EPB)
    context = {}
    context['response'] = mark_safe(response)
    return _dispatchResponse(request, 'responseTemplate', context)

def doSearchL0(request, iformat):
    return _doSearch(request, iformat)

def doSearchL1(request, collection_guid, iformat):
    return _doSearch(request, iformat, collection_guid)

def doSearchL2(request, collection_guid, observation_guid, iformat):
    return _doSearch(request, iformat, collection_guid, observation_guid)

def doSearchL3(request, collection_guid, observation_guid, result_guid, iformat):
    return _doSearch(request, iformat, collection_guid, observation_guid, result_guid)   

def _buildDescriptionOsPath(collection_guid = None, observation_guid = None, result_guid = None):
    ospath = "%s/search/" % (hostURL)
    if collection_guid:
        ospath = "%s%s/" % (ospath, collection_guid)
    if observation_guid:
        ospath = "%s%s/" % (ospath, observation_guid)
    if result_guid:
        ospath = "%s%s/" % (ospath, result_guid)
    return ospath        
        
def _dispatchResponse(request, template, context):
    context.update(csrf(request))
    return render_to_response(template, context)