fix

examples/calculator_service/.dockerignore

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+Dockerfile
+*.pyc

examples/calculator_service/Dockerfile

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+FROM python:2.7
+
+ENV PYTHONUNBUFFERED 1
+
+RUN mkdir /code
+WORKDIR /code
+
+RUN pip install uwsgi
+
+# ADD requirements.txt /code/
+# RUN pip install -r requirements.txt
+RUN pip install -e git+https://github.com/brianz/servant.git#egg=servant
+
+COPY . /code/
+RUN pip install -e .

examples/calculator_service/README.md

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+# Calculator Service demo
+
+This is a really simple/dummy service which implements a calculator with Servant.  There is a
+Docker file which can make it easier to get up and running.  To run this:
+
+```
+$ ./build.sh
+$ docker run -it --rm  servant/calculator bash
+root@557b6ba4e2c9:/code# python test_calculator.py 
+100.0 / 6.0 = 16.6666666667
+```
+
+It's also possible to mount the current working directory as a volume so that you can hack on the
+`test_calculator.py` script
+
+```
+docker run -it --rm -v `pwd`:/code  servant/calculator bash
+```
+
+Now you can edit any files on your host system and that is reflected in the Docker container automatically.
+
+In this default configuration, service calls are executed as a local Python library call.  In order to execute the service calls over HTTP, stand up the uwsgi http server:
+
+```
+docker run -it --rm -v `pwd`:/code -p 8888:8888 servant/calculator uwsgi --ini uwsgi.ini
+```
+
+Now, from your host system, uncomment the `client.configure()` line in `test_calculator.py`, update the host and port (which is 8888 in our example above) and launch `test_calculator.py` from your host system.  You should get the exact same response and see uwsgi reply to the request.

examples/calculator_service/build.sh

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+#!/bin/bash
+
+docker build -t servant/calculator .

examples/calculator_service/calculator_service/actions.py

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+import servant.fields
+
+from servant.exceptions import ActionError
+from servant.exceptions import ServantException
+from servant.service.actions import Action
+
+
+class AddAction(Action):
+    number1 = servant.fields.IntField(
+            required=True,
+    )
+    number2 = servant.fields.IntField(
+            required=True,
+    )
+    result = servant.fields.IntField(
+            in_response=True,
+    )
+
+    def run(self, **kwargs):
+        self.result = self.number1 + self.number2
+
+
+class SubtractAction(AddAction):
+    def run(self, **kwargs):
+        self.result = self.number1 - self.number2
+
+
+class BackwardSubtractAction(SubtractAction):
+    def run(self, **kwargs):
+        self.result = self.number2 - self.number1
+
+
+class MultiplyAction(AddAction):
+    def run(self, **kwargs):
+        self.result = self.number1 * self.number2
+
+
+class DivideAction(Action):
+    numerator = servant.fields.DecimalField(
+            required=True,
+            in_response=True,
+    )
+    denominator = servant.fields.DecimalField(
+            required=True,
+            in_response=True,
+    )
+    quotient = servant.fields.DecimalField(
+            in_response=True,
+    )
+
+    def run(self, **kwargs):
+        if self.denominator == 0:
+            raise ActionError('Cannot divide by zero')
+        self.quotient = self.numerator / self.denominator
+

examples/calculator_service/calculator_service/config.py

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+DUMMY_CONFIG = True
+VERSION = 1.0
+CALCULATOR_NAME = 'calculator_service'

examples/calculator_service/calculator_service/service.py

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+from servant.service.base import Service
+
+import actions
+
+
+class CalculatorService(Service):
+
+    name = 'calculator_service'
+    version = 1
+
+    action_map = {
+            'add': actions.AddAction,
+            'subtract': actions.SubtractAction,
+            'divide': actions.DivideAction,
+    }
+
+
+class CalculatorServiceV2(CalculatorService):
+    version = 2
+    action_map = {
+            'multiply': actions.MultiplyAction,
+            'subtract': actions.BackwardSubtractAction,
+    }

examples/calculator_service/requirements.txt

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+git+https://github.com/brianz/servant.git

examples/calculator_service/setup.py

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+from setuptools import setup, find_packages
+
+setup(
+    name = 'calculator_service',
+    packages=find_packages(),
+    version = '1.0',
+    description = 'Example application with Servant',
+    author='Brian Zambrano',
+    author_email='[email protected]',
+    classifiers=[
+        'Programming Language :: Python',
+        'Programming Language :: Python :: 2',
+        'License :: OSI Approved :: GNU General Public License (GPL)',
+        'Operating System :: OS Independent',
+        'Development Status :: 1 - Planning',
+        'Environment :: Console',
+        'Intended Audience :: Developers',
+        'Topic :: System :: Distributed Computing',
+    ]
+)

examples/calculator_service/test_calculator.py

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+import servant.client
+
+calc_client = servant.client.Client('calculator_service', version=1)
+simple_client = servant.client.Client('simple_service', version=1)
+calc_client2 = servant.client.Client('calculator_service', version=2)
+
+# Uncomment this line and change the connection settings in order to hit an HTTP version of the
+# service
+# client.configure('http', host='192.168.88.100', port=8888)
+
+def _handle_error(response):
+    print response.errors, response.field_errors
+
+
+def do_add(client):
+    response = client.add(number1=10, number2=15)
+
+    if response.is_error():
+        _handle_error(response)
+    else:
+        print response.result
+
+
+def do_subtract(client):
+    response = client.subtract(number1=10, number2=15)
+
+    if response.is_error():
+        _handle_error(response)
+    else:
+        print response.result
+
+
+def do_divide(client):
+    response = client.divide(numerator=100, denominator=6)
+    # Here are some examples of requests which throw errors
+    #response = client.divide(numerator=100, denominator=0)
+    #response = client.divide(numerator=100, denominator='abc')
+
+    if response.is_error():
+        _handle_error(response)
+    else:
+        print '%s / %s = %s' % (response.numerator, response.denominator, response.quotient)
+
+def do_multiply(client):
+    response = client.multiply(number1=12, number2=12)
+
+    if response.is_error():
+        print response.errors
+    else:
+        print response.result
+
+
+calc_client.configure('http', host='192.168.88.100', port=8888)
+calc_client2.configure('http', host='192.168.88.100', port=8888)
+
+do_divide(calc_client)
+
+#response = simple_client.get_theater_listing(theater_id=123)
+#if not response.is_error():
+#    for movie in response.movies:
+#        print movie
+#else:
+#    print response.text
+#
+
+do_add(calc_client2)
+#calc_client2.service_name = 'fooely'
+#do_multiply(calc_client2)

examples/calculator_service/uwsgi.ini

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+[uwsgi]
+http=0.0.0.0:8888
+wsgi-file=wsgi_handler.py
+processes=1
+threads=1
+py-auto-reload=3

examples/calculator_service/wsgi_handler.py

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+from calculator_service.service import CalculatorService
+
+service = CalculatorService()
+application = service.get_wsgi_application

examples/simple_service/client.py

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+import sys
+import time
+
+import servant.client
+
+from pprint import pprint as pp
+
+client = servant.client.Client('simple_service', version=1)
+
+try:
+    if sys.argv[1].lower() == 'http':
+        client.configure('http', host='localhost', port=8888)
+except Exception:
+    pass
+
+if not client.is_configured():
+    client.configure('local')
+
+def line():
+    print
+    print '-' * 50
+
+#resp = client.ping()
+#line()
+#pp(resp)
+
+#resp = client.echo(name='brianz')
+#line()
+#pp(resp)
+
+#resp = client.echo(name='brianz', age=41, is_awesome=True)
+#line()
+#pp(resp)
+
+#resp = client.get_weather(city='denver', state='CO')
+#line()
+#pp(resp)
+#
+n = time.time() - (3600 * 4)
+
+#resp = client.get_historical_weather(
+#            city_id=2885679,
+#            start_time=n,
+#            make_real_request=False)
+#line()
+#pp(resp)
+
+resp = client.get_theater_listing(theater_id=1234)
+line()
+pp(resp)

examples/simple_service/setup.py

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+from setuptools import setup, find_packages
+
+setup(
+    name = 'simple_service',
+    packages=find_packages(),
+    version = '1.0',
+    description = 'Example application with Servant',
+    author='Brian Zambrano',
+    author_email='[email protected]',
+    classifiers=[
+        'Programming Language :: Python',
+        'Programming Language :: Python :: 2',
+        'License :: OSI Approved :: GNU General Public License (GPL)',
+        'Operating System :: OS Independent',
+        'Development Status :: 1 - Planning',
+        'Environment :: Console',
+        'Intended Audience :: Developers',
+        'Topic :: System :: Distributed Computing',
+    ]
+)