added process to show usage of defaults (#114)

* added process to show usage of defaults

emu/processes/__init__.py

@@ -20,6 +20,7 @@
 from .wps_translation import Translation
 from .wps_geodata import GeoData
 from .wps_pandas import Pandas
+from .wps_show_defaults import ShowDefaults
 
 
 processes = [
@@ -45,4 +46,5 @@
     Translation(),
     GeoData(),
     Pandas(),
+    ShowDefaults(),
 ]

emu/processes/wps_show_defaults.py

@@ -0,0 +1,80 @@
+import json
+
+from pywps import Process, LiteralInput, ComplexOutput
+from pywps import FORMATS
+
+import logging
+LOGGER = logging.getLogger("PYWPS")
+
+
+class ShowDefaults(Process):
+    """
+    Process with examples of default value usage in WPS.
+    """
+    def __init__(self):
+        inputs = [
+            LiteralInput(
+                'string_0',
+                'String 0: optional, no default',
+                data_type='string',
+                min_occurs=0
+            ),
+            LiteralInput(
+                'string_1',
+                'String 1: optional with default',
+                data_type='string',
+                default='one',
+                min_occurs=0
+            ),
+            LiteralInput(
+                'string_2',
+                'String 2: required with default',
+                data_type='string',
+                default='two',
+                min_occurs=1
+            ),
+            LiteralInput(
+                'string_3',
+                'String 3: required no default',
+                data_type='string',
+                default='three',
+                min_occurs=1
+            ),
+        ]
+        outputs = [
+            ComplexOutput(
+                'output',
+                'Output',
+                as_reference=True,
+                supported_formats=[FORMATS.JSON]),
+        ]
+
+        super(ShowDefaults, self).__init__(
+            self._handler,
+            identifier='show_defaults',
+            title="Show defaults",
+            abstract="Show usage of default values in WPS",
+            version="1.0",
+            inputs=inputs,
+            outputs=outputs,
+            store_supported=True,
+            status_supported=True
+        )
+
+    @staticmethod
+    def _handler(request, response):
+        response.update_status('PyWPS Process started.', 0)
+
+        if 'string_0' in request.inputs:
+            string0 = request.inputs['string_0'][0].data
+        else:
+            string0 = "no value"
+
+        response.outputs['output'].data = json.dumps({
+            'string0': string0,
+            'string1': request.inputs['string_1'][0].data,
+            'string2': request.inputs['string_2'][0].data,
+            'string3': request.inputs['string_3'][0].data,
+        })
+        response.update_status('PyWPS Process completed.', 100)
+        return response

environment.yml

@@ -5,7 +5,7 @@ channels:
 dependencies:
 - pip
 - python>=3.6
-- pywps>=4.4.0
+- pywps>=4.4.5,<4.5
 - jinja2
 - click
 - psutil

requirements.txt

@@ -1,8 +1,7 @@
-pywps>=4.4.0
+pywps>=4.4.5
 jinja2
 click
 psutil
-defusedxml
 geomet
 xarray
 netCDF4

tests/test.cfg

@@ -1,3 +1,6 @@
 [server]
 allowedinputpaths=/
 language = en-US,fr-CA,de-DE
+
+[logging]
+level=DEBUG

tests/test_wps_caps.py

@@ -29,6 +29,7 @@ def test_wps_caps():
         'output_formats',
         'pandas',
         'poly_centroid',
+        'show_defaults',
         'show_error',
         'simple_dry_run',
         'sleep',

tests/test_wps_show_defaults.py

@@ -0,0 +1,50 @@
+import json
+
+from pywps import Service
+from pywps import get_ElementMakerForVersion
+
+from .common import client_for
+from emu.processes.wps_show_defaults import ShowDefaults
+
+VERSION = "1.0.0"
+
+WPS, OWS = get_ElementMakerForVersion(VERSION)
+
+
+def test_wps_show_defaults_post():
+    client = client_for(Service(processes=[ShowDefaults()]))
+    request_doc = WPS.Execute(
+        OWS.Identifier('show_defaults'),
+        WPS.DataInputs(
+            WPS.Input(
+                OWS.Identifier('string_0'),
+                WPS.Data(WPS.LiteralData("ZERO"))
+            ),
+            # WPS.Input(
+            #     OWS.Identifier('string_1'),
+            #     WPS.Data(WPS.LiteralData("ONE"))
+            # ),
+            # WPS.Input(
+            #     OWS.Identifier('string_2'),
+            #     WPS.Data(WPS.LiteralData("TWO"))
+            # ),
+            WPS.Input(
+                OWS.Identifier('string_3'),
+                WPS.Data(WPS.LiteralData("THREE"))
+            )
+        ),
+        WPS.ResponseForm(
+            WPS.RawDataOutput(
+                OWS.Identifier('output')
+            )
+        ),
+        version='1.0.0'
+    )
+    resp = client.post_xml(doc=request_doc)
+    print(resp.data)
+    assert resp.status_code == 200
+    result = json.loads(resp.data)
+    assert result['string0'] == 'ZERO'
+    assert result['string1'] == 'one'
+    assert result['string2'] == 'two'
+    assert result['string3'] == 'THREE'