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@@ -1,3 +1,10 @@
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+import asyncpg
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+import os
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+import jinja2
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+from logging import getLogger
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+from random import randint
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+from operator import itemgetter
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+
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import multiprocessing
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from wsgiref.handlers import format_date_time
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@@ -5,14 +12,127 @@ import sanic
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from sanic import response
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+logger = getLogger(__name__)
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+
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+
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+READ_ROW_SQL = 'SELECT "randomnumber" FROM "world" WHERE id = $1'
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+READ_ROW_SQL_TO_UPDATE = 'SELECT "id", "randomnumber" FROM "world" WHERE id = $1'
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+WRITE_ROW_SQL = 'UPDATE "world" SET "randomnumber"=$1 WHERE id=$2'
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+ADDITIONAL_ROW = [0, 'Additional fortune added at request time.']
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+
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+
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+def load_fortunes_template():
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+ path = os.path.join('templates', 'fortune.html')
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+ with open(path, 'r') as template_file:
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+ template_text = template_file.read()
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+ return jinja2.Template(template_text)
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+
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+
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+def get_num_queries(queries):
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+ try:
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+ query_count = int(queries)
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+ except (ValueError, TypeError):
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+ return 1
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+
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+ if query_count < 1:
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+ return 1
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+ if query_count > 500:
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+ return 500
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+ return query_count
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+
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+
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+connection_pool = None
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+sort_fortunes_key = itemgetter(1)
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+template = load_fortunes_template()
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+
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app = sanic.Sanic()
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[email protected]('before_server_start')
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+async def setup_database(app, loop):
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+ global connection_pool
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+ connection_pool = await asyncpg.create_pool(
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+ user=os.getenv('PGUSER', 'benchmarkdbuser'),
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+ password=os.getenv('PGPASS', 'benchmarkdbpass'),
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+ database='hello_world',
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+ host='tfb-database',
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+ port=5432
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+ )
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+
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+
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@app.get('/json')
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def json_view(request):
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return response.json({'message': 'Hello, world!'}, headers=get_headers())
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[email protected]('/db')
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+async def single_database_query_view(request):
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+ row_id = randint(1, 10000)
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+
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+ async with connection_pool.acquire() as connection:
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+ number = await connection.fetchval(READ_ROW_SQL, row_id)
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+
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+ return response.json(
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+ {'id': row_id, 'randomNumber': number},
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+ headers=get_headers()
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+ )
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+
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+
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[email protected]('/queries')
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+async def multiple_database_queries_view(request):
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+ num_queries = get_num_queries(request.args.get('queries', 1))
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+ row_ids = [randint(1, 10000) for _ in range(num_queries)]
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+ worlds = []
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+
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+ async with connection_pool.acquire() as connection:
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+ statement = await connection.prepare(READ_ROW_SQL)
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+ for row_id in row_ids:
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+ number = await statement.fetchval(row_id)
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+ worlds.append(
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+ dict(
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+ id=row_id,
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+ randomNumber=number
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+ )
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+ )
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+
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+ return response.json(worlds, headers=get_headers())
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+
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+
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[email protected]('/fortunes')
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+async def fortunes_view(request):
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+ async with connection_pool.acquire() as connection:
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+ fortunes = await connection.fetch('SELECT * FROM Fortune')
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+
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+ fortunes.append(ADDITIONAL_ROW)
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+ fortunes.sort(key=sort_fortunes_key)
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+ content = template.render(fortunes=fortunes)
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+ return response.html(content, headers=get_headers())
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+
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+
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+
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[email protected]('/updates')
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+async def database_updates_view(request):
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+ worlds = []
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+ updates = set()
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+ queries = request.args.get('queries', 1)
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+
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+ async with connection_pool.acquire() as connection:
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+ statement = await connection.prepare(READ_ROW_SQL_TO_UPDATE)
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+
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+ for _ in range(get_num_queries(queries)):
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+ record = await statement.fetchrow(randint(1, 10000))
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+ world = dict(
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+ id=record['id'], randomNumber=record['randomnumber']
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+ )
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+ world['randomNumber'] = randint(1, 10000)
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+ worlds.append(world)
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+ updates.add((world['id'], world['randomNumber']))
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+
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+ await connection.executemany(WRITE_ROW_SQL, updates)
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+
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+ return response.json(worlds, headers=get_headers())
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+
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+
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@app.get('/plaintext')
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def plaintext_view(request):
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return response.text('Hello, world!', headers=get_headers())
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