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How to use cachedItem method in fMBT

Best Python code snippet using fMBT_python

royal.py

Source:royal.py

1"""Extension to integrate pyramid_caching into pyramid_royal applications."""2from __future__ import absolute_import3from pyramid.view import view_config4from royal import Collection, Item, Root5from royal.views import CollectionView, delete, ItemView, not_allowed6from pyramid_caching.cache import (7    cache_factory,8    QueryStringKeyModifier,9    ResourceDependency,10    )11def includeme(config):  # pragma: no cover12    """Register cached views into a Pyramid configurator."""13    config.scan(__name__)14class CachedResourceMixin(object):15    """Mixin class for Royal resources that can invalidate their cache key."""16    def invalidate(self):17        """Invalidate the cache key for this resource."""18        dep = ResourceDependency()19        key = dep(self, self.root.request)20        self.root.request.versioner.incr(key)21class CachedCollection(Collection, CachedResourceMixin):22    """A resource that supports caching and contains cached items."""23    __composite__ = True24class CachedItem(Item, CachedResourceMixin):25    """A cached resource that may belong to a cached collection."""26    pass27class CachedViewMixin(object):28    """Mixin class for Royal views that automatically invalidate the cache."""29    def __init__(self, context, request):  # pragma: no cover30        self.context = context31        self.request = request32    @view_config(context=CachedCollection,33                 request_method='DELETE',34                 permission='delete',35                 renderer='royal')36    @view_config(context=CachedItem,37                 request_method='DELETE',38                 permission='delete',39                 renderer='royal')40    def cached_delete(self):41        """Delete the resource and invalidate the cache."""42        response = delete(self.context, self.request)43        self.context.invalidate()44        return response45    @view_config(context=CachedCollection,46                 renderer='royal')47    @view_config(context=CachedItem,48                 renderer='royal')49    @view_config(context=Root,50                 renderer='royal')51    def cached_not_allowed(self):52        """Operation method is not valid for this resource type."""53        return not_allowed(self.context, self.request)54class CachedCollectionView(CollectionView, CachedViewMixin):55    """Collection of resources that caches the list of items it possesses."""56    @view_config(context=CachedCollection,57                 request_method='GET',58                 permission='index',59                 decorator=cache_factory(60                     depends_on=[61                         ResourceDependency(),62                         ],63                     varies_on=[64                         QueryStringKeyModifier(),65                         ],66                     ))67    def cached_index(self):68        """Respond with the list of items in this collection."""69        return self.index()70    @view_config(context=CachedCollection,71                 request_method='POST',72                 permission='create')73    def cached_create(self):74        """Add a new item to this collection and invalidate its cache."""75        response = self.create()76        self.context.invalidate()77        return response78class CachedItemView(ItemView, CachedViewMixin):79    """A resource that caches its representation."""80    @view_config(context=CachedItem,81                 request_method='GET',82                 permission='show',83                 decorator=cache_factory(84                     depends_on=[85                         ResourceDependency(),86                         ],87                     varies_on=[88                         QueryStringKeyModifier(),89                         ],90                     ))91    @view_config(context=Root,92                 request_method='GET',93                 permission='show',94                 decorator=cache_factory(95                     depends_on=[96                         ResourceDependency(),97                         ],98                     varies_on=[99                         QueryStringKeyModifier(),100                         ],101                     ))102    def cached_show(self):103        """Respond with a representation of this resource."""104        return self.show()105    @view_config(context=CachedItem,106                 request_method='PUT',107                 permission='replace')108    def cached_put(self):109        """Replace the current resource and invalidate its cache."""110        response = self.put()111        self.context.invalidate()112        return response113    @view_config(context=CachedItem,114                 request_method='PATCH',115                 permission='update')116    def cached_update(self):117        """Modify the resource and invalidate its cache."""118        response = self.patch()119        self.context.invalidate()120        return response121    @view_config(context=CachedItem,122                 request_method='POST')123    def cached_post(self):124        # Raises MethodNotAllowed...

alfaviewCachedLogin.py

Source:alfaviewCachedLogin.py

1#!/usr/bin/env python32import hfuLogin3import alfaviewEngine4import json, os, time5def isCacheFile(path='./cache.json'):6	return os.path.isfile(path)7def getCacheFile(path='./cache.json'):8	if isCacheFile(path):9		cacheFile= open(path, 'r')10		cacheContent= cacheFile.read()11		cacheFile.close()12		cacheValues = json.loads(cacheContent)13		return cacheValues14	else:15		return []16def setCacheFile(cacheValues, path='./cache.json'):17	configContent = json.dumps(configValues)18	configFile= open(path, 'w')19	configFile.write(configContent)20	configFile.close()21def cleanCache(cacheValues):22    newCacheValues=[]23    cutTime= time.time()-(12*60*60)24    25    for item in cacheValues:26        if item['timestamp'] >= cutTime:27            newCacheValues.append(item)28            29    return newCacheValues30def retrieveCache(cacheValues, key):31    for item in cacheValues:32        if item['key'] == key:33            return item34def start(myRoom, myUsername, myPassword, myName, alfaviewPath='/opt/alfaview/alfaview', timeout=15, bandWidthUsage='normal', noUpdate=0, skipQuickSetup=1, configDir='./'):35    cacheValues= getCacheFile(configDir + 'cache.json')36    cacheValues= cleanCache(cacheValues)37    cachedItem= retrieveCache(cacheValues, myRoom + myUsername + myName)38    if cachedItem == None:39        url= hfuLogin.getUrl(myRoom, myUsername, myPassword, myName, geckoLogPath=configDir+'geckodriver.log', webdriverPath=configDir, timeout=timeout)40        cachedItem= {'timestamp': time.time(), 'key': myRoom + myUsername + myName, 'url': url}41        cacheValues.append(cachedItem)42        setCacheFile(cacheValues, configDir + 'cache.json')43        ...

test_cache_lib.py

Source:test_cache_lib.py

1import pytest2from cache_lib import CachedDict3import time4@pytest.fixture(scope='module')5def cd():6    cd = CachedDict()7    yield cd8def test_cacheIt(cd):9    assert cd.cacheIt('a', 10) == '<CachedItem {a:10} last updated with frequency 1>'10    assert cd.cacheIt('b', 11) == '<CachedItem {b:11} last updated with frequency 1>'11    time.sleep(2)12    assert cd.cacheIt('c', 12) == '<CachedItem {c:12} last updated with frequency 1>'13    assert cd.cacheIt('c', 13) == '<CachedItem {c:13} last updated with frequency 2>'14    time.sleep(2)15    assert cd.cacheIt('b', 13) == '<CachedItem {b:13} last updated with frequency 2>'16    time.sleep(1)17    assert cd.cacheIt('a', 13) == '<CachedItem {a:13} last updated with frequency 2>'18    time.sleep(1)19    assert cd.cacheIt('c', [1, 2, 3]) == '<CachedItem {c:[1, 2, 3]} last updated with frequency 3>'...

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