# Path: debian/elevator/usr/share/pyshared/elevator/db.py
# class DatabaseOptions(dict):
#     def __init__(self, *args, **kwargs):
#         self['create_if_missing'] = True
#         self['error_if_exists'] = False
#         self['paranoid_checks'] = False
#         self['block_cache_size'] = 8 * (2 << 20)
#         self['write_buffer_size'] = 2 * (2 << 20)
#         self['block_size'] = 4096
#         self['max_open_files'] = 1000
# 
#         for key, value in kwargs.iteritems():
#             if key in self:
#                 self[key] = value
# 
# Path: debian/elevator/usr/share/pyshared/elevator/constants.py
# KEY_ERROR = 1
# 
# TYPE_ERROR = 0
# 
# DATABASE_ERROR = 6
# 
# VALUE_ERROR = 2
# 
# RUNTIME_ERROR = 4
# 
# SIGNAL_ERROR = 7
# 
# SUCCESS_STATUS = 1
# 
# FAILURE_STATUS = -1
# 
# WARNING_STATUS = -2
# 
# SIGNAL_BATCH_PUT = 1
# 
# SIGNAL_BATCH_DELETE = 0


import leveldb
import logging
from .db import DatabaseOptions
from .message import ResponseContent, ResponseHeader
from .constants import KEY_ERROR, TYPE_ERROR, DATABASE_ERROR,\
                       VALUE_ERROR, RUNTIME_ERROR, SIGNAL_ERROR,\
                       SUCCESS_STATUS, FAILURE_STATUS, WARNING_STATUS,\
                       SIGNAL_BATCH_PUT, SIGNAL_BATCH_DELETE
from .utils.patterns import destructurate
from .helpers.internals import failure, success
        def get_or_none(key, context):
            try:
                res = db.Get(key)
            except KeyError:
                warning_msg = "Key {0} does not exist".format(key)
                context['status'] = WARNING_STATUS
                errors_logger.warning(warning_msg)
                res = None
            return res

        context = {'status': SUCCESS_STATUS}
        value = [get_or_none(key, context) for key in keys]
        status = context['status']

        return status, value

    def Put(self, db, key, value, *args, **kwargs):
        """
        Handles Put message command.
        Executes a Put operation over the leveldb backend.

        db      =>      LevelDB object
        *args   =>      (key, value) to update

        """
        try:
            return success(db.Put(key, value))
        except TypeError:
            error_msg = "Unsupported value type : %s" % type(value)
            errors_logger.exception(error_msg)

# Path: debian/elevator/usr/share/pyshared/elevator/db.py
# class DatabaseOptions(dict):
#     def __init__(self, *args, **kwargs):
#         self['create_if_missing'] = True
#         self['error_if_exists'] = False
#         self['paranoid_checks'] = False
#         self['block_cache_size'] = 8 * (2 << 20)
#         self['write_buffer_size'] = 2 * (2 << 20)
#         self['block_size'] = 4096
#         self['max_open_files'] = 1000
# 
#         for key, value in kwargs.iteritems():
#             if key in self:
#                 self[key] = value
# 
# Path: debian/elevator/usr/share/pyshared/elevator/constants.py
# KEY_ERROR = 1
# 
# TYPE_ERROR = 0
# 
# DATABASE_ERROR = 6
# 
# VALUE_ERROR = 2
# 
# RUNTIME_ERROR = 4
# 
# SIGNAL_ERROR = 7
# 
# SUCCESS_STATUS = 1
# 
# FAILURE_STATUS = -1
# 
# WARNING_STATUS = -2
# 
# SIGNAL_BATCH_PUT = 1
# 
# SIGNAL_BATCH_DELETE = 0


# Path: debian/elevator/usr/share/pyshared/elevator/api.py
import leveldb
import logging
from .db import DatabaseOptions
from .message import ResponseContent, ResponseHeader
from .constants import KEY_ERROR, TYPE_ERROR, DATABASE_ERROR,\
                       VALUE_ERROR, RUNTIME_ERROR, SIGNAL_ERROR,\
                       SUCCESS_STATUS, FAILURE_STATUS, WARNING_STATUS,\
                       SIGNAL_BATCH_PUT, SIGNAL_BATCH_DELETE
from .utils.patterns import destructurate
from .helpers.internals import failure, success

        def get_or_none(key, context):
            try:
                res = db.Get(key)
            except KeyError:
                warning_msg = "Key {0} does not exist".format(key)
                context['status'] = WARNING_STATUS
                errors_logger.warning(warning_msg)
                res = None
            return res

        context = {'status': SUCCESS_STATUS}
        value = [get_or_none(key, context) for key in keys]
        status = context['status']

        return status, value

    def Put(self, db, key, value, *args, **kwargs):
        """
        Handles Put message command.
        Executes a Put operation over the leveldb backend.

        db      =>      LevelDB object
        *args   =>      (key, value) to update

        """
        try:
            return success(db.Put(key, value))
        except TypeError:
            error_msg = "Unsupported value type : %s" % type(value)
            errors_logger.exception(error_msg)

            return failure(TYPE_ERROR, error_msg)