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# Copyright (c) 2015, Nordic Semiconductor
# 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 Nordic Semiconductor ASA 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 HOLDER 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.
import re
import os
import json
from abc import ABCMeta, abstractmethod
class TargetDatabase(object):
__metaclass__ = ABCMeta
@abstractmethod
def get_targets(self):
pass
@abstractmethod
def get_target(self, target_id):
pass
@abstractmethod
def refresh(self):
pass
@staticmethod
def find_target(targets, target_id):
for target in targets:
if target["id"] == target_id:
return target
return None
class EnvTargetDatabase(TargetDatabase):
def __init__(self):
self.targets = None
def get_targets(self):
if self.targets is None:
self.targets = []
for key, value in os.environ.iteritems():
match = re.match("NORDICSEMI_TARGET_(?P<target>\d+)_(?P<key>[a-zA-Z_]+)", key)
if match:
key_value = match.groupdict()
if "key" in key_value and "target" in key_value:
target_id = int(key_value["target"])
target = self.find_target(self.targets, target_id)
if target is None:
target = {"id": int(target_id)}
self.targets.append(target)
target[key_value["key"].lower()] = value
return self.targets
def refresh(self):
self.targets = None
def get_target(self, target_id):
return self.find_target(self.get_targets(), target_id)
class FileTargetDatabase(TargetDatabase):
def __init__(self, filename):
self.filename = filename
self.targets = None
def get_targets(self):
if not self.targets:
self.targets = json.load(open(self.filename, "r"))["targets"]
return self.targets
def get_target(self, target_id):
return self.find_target(self.get_targets(), target_id)
def refresh(self):
self.targets = None
class TargetRegistry(object):
def __init__(self, target_db=EnvTargetDatabase()):
self.target_db = target_db
def find_one(self, target_id=None):
if target_id:
return self.target_db.get_target(target_id)
else:
return None
def get_all(self):
return self.target_db.get_targets()
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