# coding=utf-8
# Copyright 2018-2020 EVA
#
# 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.

import asyncio

from src.utils.logging_manager import LoggingManager

from src.parser.parser import Parser
from src.optimizer.statement_to_opr_convertor import StatementToPlanConvertor

from src.executor.plan_executor import PlanExecutor
from src.optimizer.plan_generator import PlanGenerator
from src.utils.logging_manager import LoggingManager


@asyncio.coroutine
def handle_request(transport, query):
    """
        Reads a request from a client and processes it

        If user inputs 'quit' stops the event loop
        otherwise just echoes user input
    """
    parser = Parser()
    eva_statement = parser.parse(query)
    insert_statement = eva_statement[0]

    LoggingManager().log("Result from the parser: " + str(insert_statement))

    convertor = StatementToPlanConvertor()
    convertor.visit(insert_statement)

    convertor.plan

    eva_statement = parser.parse(query)
    response_message = ""

    for i in range(len(eva_statement)):

        LoggingManager().log("Parse Tree: " + str(eva_statement[i]))
        logical_plan = StatementToPlanConvertor().visit(eva_statement[i])
        physical_plan = PlanGenerator().build(logical_plan)
        df = PlanExecutor(physical_plan).execute_plan()
        statement_response_message = ','.join(map(str, df.collect()))
        response_message += statement_response_message

    LoggingManager().log('Response to client: --|' +
                         str(response_message) +
                         '|--')

    data = response_message.encode('ascii')
    transport.write(data)

    return response_message

# coding=utf-8
# Copyright 2018-2020 EVA
#
# 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.

import asyncio

from src.utils.logging_manager import LoggingManager

from src.parser.parser import Parser
from src.optimizer.statement_to_opr_convertor import StatementToPlanConvertor

from src.executor.plan_executor import PlanExecutor
from src.optimizer.plan_generator import PlanGenerator
from src.utils.logging_manager import LoggingManager


@asyncio.coroutine
def handle_request(transport, query):
    """
        Reads a request from a client and processes it

        If user inputs 'quit' stops the event loop
        otherwise just echoes user input
    """
    parser = Parser()
    eva_statement = parser.parse(query)
    insert_statement = eva_statement[0]

    LoggingManager().log("Result from the parser: " + str(insert_statement))

    convertor = StatementToPlanConvertor()
    convertor.visit(insert_statement)

    convertor.plan

    eva_statement = parser.parse(query)
    response_message = ""

    for i in range(len(eva_statement)):

        LoggingManager().log("Parse Tree: " + str(eva_statement[i]))
        logical_plan = StatementToPlanConvertor().visit(eva_statement[i])
        physical_plan = PlanGenerator().build(logical_plan)
        df = PlanExecutor(physical_plan).execute_plan()
        statement_response_message = ','.join(map(str, df.collect()))
        response_message += statement_response_message

    LoggingManager().log('Response to client: --|' +
                         str(response_message) +
                         '|--')

    data = response_message.encode('ascii')
    transport.write(data)

    return response_message

# coding=utf-8 # Copyright 2018-2020 EVA # # 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. Reads a request from a client and processes it          If user inputs 'quit' stops the event loop         otherwise just echoes user input