class UpperCaser:
in_lines = flowbase.Port()
out_lines = flowbase.Port()
async def run(self):
while not self.in_lines.empty():
s = await self.in_lines.get()
await self.out_lines.put(s.upper())
class StringJoiner:
in_leftpart = flowbase.Port()
in_rightpart = flowbase.Port()
out_lines = flowbase.Port()
async def run(self):
while not self.in_leftpart.empty() or not self.in_rightpart.empty():
leftpart = await self.in_leftpart.get()
rightpart = await self.in_rightpart.get()
await self.out_lines.put(f"{leftpart}{rightpart}")
class StringSplitter:
in_lines = flowbase.Port()
out_leftpart = flowbase.Port()
out_rightpart = flowbase.Port()
async def run(self):
while not self.in_lines.empty():
s = await self.in_lines.get()
await self.out_leftpart.put(s[:int(len(s) / 2)])
await self.out_rightpart.put(s[int(len(s) / 2):])
class Printer:
in_lines = flowbase.Port()
async def run(self):
while not self.in_lines.empty():
s = await self.in_lines.get()
print(f"Printer got line: {s}")
class HiSayer:
out_lines = flowbase.Port()
async def run(self):
for i in range(20):
await self.out_lines.put(f"Hi hi for the {i+1}:th time...")