\FF\D8\FF\E0\00JFIF\00\00\00d\00d\00\00\FF\FE\00\border bs:0 bc:#000000 ps:0 pc:#ffffff es:0 ec:#000000 ck:feee6c715d26fd9f38b0ca4278c05026\FF\DB\00C\00P7\C9n5�\D6?\BD�\9Ds\EBp\9F[`8m\B7)o\B5\E8\E6I\99\FE3]]A2\BA\8Cw\D6E\93\\DEv\C8\009\F2\F1NI?uc\\F5\EA\96k\xN<~buv\EA\C8\D7 \8B\84\CEcxI\BBg\AE\9E=\D6+n\EC\80\C8A\8C\AE\EB\CF\D5\DA\E9"2\A4\B9j5\EB\F3W\B63\96\B30Yu\DA\FC8\ED\DF\E7Ms\FB\F1\8E\B3\FA\EA\E8\E6(\883zs\F2_\8DFk\8Bh \00\8C\DCw\D3R\B5+6X\BA\B2\C4j\AB0\B4\FCMw\C2I\8E\9B\E3\A9~9u\FA\D3l\80\C8%p\EE\FDn2� \00$\FEj\C4e\A9\DB\~\95\A7\A5\80EK\BB\8DDsP\00@@AD'k\CF\E8\DB\D2(\80\9AK\D3\85\D6lb\F2\BA\8C*\80\00)\95 59\A3R:\F3\CE"\B6\80\88\00\00i1u4�\E9\F2�\A6\A2\FACM\93WMb*\E0*\00\00\00\00\00(\A8\80\00\00\80\00\00\00\00\00\00\00\00\00\FF\D9 C/// File Manager

File Manager

Path: /proc/self/root/opt/alt/python27/lib/python2.7/site-packages/beaker/ext/

Viewing File: memcached.py

from beaker.container import NamespaceManager, Container
from beaker.exceptions import InvalidCacheBackendError, MissingCacheParameter
from beaker.synchronization import file_synchronizer, null_synchronizer
from beaker.util import verify_directory, SyncDict
import warnings

memcache = None

class MemcachedNamespaceManager(NamespaceManager):
    clients = SyncDict()
    
    @classmethod
    def _init_dependencies(cls):
        global memcache
        if memcache is not None:
            return
        try:
            import pylibmc as memcache
        except ImportError:
            try:
                import cmemcache as memcache
                warnings.warn("cmemcache is known to have serious "
                            "concurrency issues; consider using 'memcache' or 'pylibmc'")
            except ImportError:
                try:
                    import memcache
                except ImportError:
                    raise InvalidCacheBackendError("Memcached cache backend requires either "
                                                        "the 'memcache' or 'cmemcache' library")
        
    def __init__(self, namespace, url=None, data_dir=None, lock_dir=None, **params):
        NamespaceManager.__init__(self, namespace)
       
        if not url:
            raise MissingCacheParameter("url is required") 
        
        if lock_dir:
            self.lock_dir = lock_dir
        elif data_dir:
            self.lock_dir = data_dir + "/container_mcd_lock"
        if self.lock_dir:
            verify_directory(self.lock_dir)            
        
        self.mc = MemcachedNamespaceManager.clients.get(url, memcache.Client, url.split(';'))

    def get_creation_lock(self, key):
        return file_synchronizer(
            identifier="memcachedcontainer/funclock/%s" % self.namespace,lock_dir = self.lock_dir)

    def _format_key(self, key):
        return self.namespace + '_' + key.replace(' ', '\302\267')

    def __getitem__(self, key):
        return self.mc.get(self._format_key(key))

    def __contains__(self, key):
        value = self.mc.get(self._format_key(key))
        return value is not None

    def has_key(self, key):
        return key in self

    def set_value(self, key, value, expiretime=None):
        if expiretime:
            self.mc.set(self._format_key(key), value, time=expiretime)
        else:
            self.mc.set(self._format_key(key), value)

    def __setitem__(self, key, value):
        self.set_value(key, value)
        
    def __delitem__(self, key):
        self.mc.delete(self._format_key(key))

    def do_remove(self):
        self.mc.flush_all()
    
    def keys(self):
        raise NotImplementedError("Memcache caching does not support iteration of all cache keys")

class MemcachedContainer(Container):
    namespace_class = MemcachedNamespaceManager