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#!/usr/bin/env python
# vim: set fileencoding=utf-8 :
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###################################################################################
#                                                                                 #
# Copyright (c) 2019 Idiap Research Institute, http://www.idiap.ch/               #
# Contact: beat.support@idiap.ch                                                  #
#                                                                                 #
# Redistribution and use in source and binary forms, with or without              #
# modification, are permitted provided that the following conditions are met:     #
#                                                                                 #
# 1. Redistributions of source code must retain the above copyright notice, this  #
# list of conditions and the following disclaimer.                                #
#                                                                                 #
# 2. 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.                          #
#                                                                                 #
# 3. Neither the name of the copyright holder 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.            #
#                                                                                 #
###################################################################################
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from collections import namedtuple

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import numpy
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from beat.backend.python.database import View as BaseView
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class View(BaseView):
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    def setup(
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        self,
        root_folder,
        outputs,
        parameters,
        start_index=None,
        end_index=None,
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    ):
        """Initializes the database"""

        super().setup(root_folder, outputs, parameters, start_index, end_index)

        return True

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    def index(self, root_folder, parameters):
        Entry = namedtuple("Entry", ["out"])

        return [Entry(42)]

    def get(self, output, index):
        obj = self.objs[index]

        if output == "out":
            return {"value": numpy.int32(obj.out)}


# ----------------------------------------------------------


class View2(BaseView):
    def index(self, root_folder, parameters):
        Entry = namedtuple("Entry", ["out"])

        return [Entry(53)]

    def get(self, output, index):
        obj = self.objs[index]

        if output == "out":
            return {"value": numpy.int32(obj.out)}


# ----------------------------------------------------------


class LargeView(BaseView):
    def index(self, root_folder, parameters):
        Entry = namedtuple("Entry", ["out"])

        return [Entry(0), Entry(1), Entry(2), Entry(3), Entry(4)]

    def get(self, output, index):
        obj = self.objs[index]

        if output == "out":
            return {"value": numpy.int32(obj.out)}