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strategy.py
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strategy.py
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# coding: utf-8
class Report(object):
def __init__(self, title, text, formatter):
self._title = title
self._text = text
self._formatter = formatter
def output_report(self):
self._formatter.output_report(self._title, self._text)
class Formatter(object):
def output_report(self, title, text):
assert False
class HTMLFormatter(Formatter):
def output_report(self, title, text):
print('<html>')
print('<head>')
print('<title>{}</title>'.format(title))
print('</head>')
print('<body>')
for line in text:
print("<p>{}</p>".format(line))
print('</body>')
print('</html>')
class PlainTextFormatter(Formatter):
def output_report(self, title, text):
print('*** {} ***'.format(title))
for line in text:
print(line)
class CallableReport(object):
def __init__(self, title, text, formatter):
self._title = title
self._text = text
self._formatter = formatter
def output_report(self):
self._formatter(self._title, self._text)
class CallableFormatter(object):
def __init__(self, decoration='***'):
self._decoration = decoration
def __call__(self, title, text):
print('{decoration}{content}{decoration}'.format(
decoration=self._decoration,
content=title)
)
for line in text:
print(line)
if __name__ == '__main__':
report = Report('月次報告', ['順調！', '最高です！'],
PlainTextFormatter())
report.output_report()
print('-' * 50)
report = Report('月次報告', ['順調！', '最高です！'],
HTMLFormatter())
report.output_report()
print('-' * 50)
report = CallableReport('月次報告', ['順調！', '最高です！'],
CallableFormatter())
report.output_report()