# Copyright (c) 2013 Red Hat, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from contextlib import contextmanager


class FakeMemcache(object):
    """A Fake class to emulate memcache."""

    def __init__(self):
        self.store = {}

    def get(self, key):
        return self.store.get(key)

    def set(self, key, value, timeout=0):
        self.store[key] = value
        return True

    def incr(self, key, time=0):
        self.store[key] = self.store.setdefault(key, 0) + 1
        return self.store[key]

    @contextmanager
    def soft_lock(self, key, timeout=0, retries=5):
        yield True

    def delete(self, key):
        try:
            del self.store[key]
        except Exception:
            pass
        return True