From 827e6a3dbf6c27dd67d01ca81232e28397be0a5d Mon Sep 17 00:00:00 2001
From: edisonguo <edison.guo@anu.edu.au>
Date: Thu, 25 Apr 2019 12:27:35 +1000
Subject: [PATCH] added support for specifying geometry id as wps input (#264)

---
 ows.go                            | 12 +++++++++++-
 templates/WPS_DescribeProcess.tpl |  4 ++++
 utils/wps.go                      |  8 ++++++++
 3 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/ows.go b/ows.go
index 073ede9b..881fab55 100644
--- a/ows.go
+++ b/ows.go
@@ -1049,7 +1049,17 @@ func serveWPS(ctx context.Context, params utils.WPSParams, conf *utils.Config, r
 		ctx, ctxCancel := context.WithCancel(ctx)
 		defer ctxCancel()
 		errChan := make(chan error, 100)
-		suffix := fmt.Sprintf("_%04d", rand.Intn(1000))
+
+		var suffix string
+		if params.GeometryId != nil {
+			geoId := strings.TrimSpace(*params.GeometryId)
+			if len(geoId) > 0 {
+				suffix = fmt.Sprintf("_%s", geoId)
+			}
+		}
+		if len(suffix) < 2 {
+			suffix = fmt.Sprintf("_%04d", rand.Intn(1000))
+		}
 
 		for ids, dataSource := range process.DataSources {
 			if *verbose {
diff --git a/templates/WPS_DescribeProcess.tpl b/templates/WPS_DescribeProcess.tpl
index 79a7f3b9..23af21c5 100644
--- a/templates/WPS_DescribeProcess.tpl
+++ b/templates/WPS_DescribeProcess.tpl
@@ -12,11 +12,15 @@
 			<ows:Abstract>{{ .Abstract }}</ows:Abstract>
 			<LiteralData>
 				<ows:DataType ows:reference="{{ .DataTypeRef }}">{{ .DataType }}</ows:DataType>
+				{{ if .AllowedValues }}
 				<ows:AllowedValues>
 					{{ range $index, $value := .AllowedValues }}
 					<ows:Value>{{ . }}</ows:Value>
 					{{ end }}
 				</ows:AllowedValues>
+				{{ else }}
+				<ows:AnyValue />
+				{{ end }}
 			</LiteralData>
 		</Input>
 		{{ end }}
diff --git a/utils/wps.go b/utils/wps.go
index 36c38e65..5e32b151 100644
--- a/utils/wps.go
+++ b/utils/wps.go
@@ -20,6 +20,7 @@ import (
 
 type Data struct {
 	ComplexData string
+	LiteralData string
 }
 
 type Input struct {
@@ -62,6 +63,8 @@ func ParsePost(rc io.ReadCloser) (map[string][]string, error) {
 			parsedBody["end_datetime"] = []string{input.Data.ComplexData}
 		} else if inputID == "geometry" {
 			parsedBody["geometry"] = []string{fmt.Sprintf(`geometry=%s`, input.Data.ComplexData)}
+		} else if inputID == "geometry_id" {
+			parsedBody["geometry_id"] = []string{input.Data.LiteralData}
 		}
 	}
 
@@ -78,6 +81,7 @@ type WPSParams struct {
 	EndDateTime   *string               `json:"end_datetime"`
 	Product       *string               `json:"product"`
 	FeatCol       geo.FeatureCollection `json:"feature_collection"`
+	GeometryId    *string               `json:"geometry_id"`
 }
 
 // WPSRegexpMap maps WPS request parameters to
@@ -201,6 +205,10 @@ func WPSParamsChecker(params map[string][]string, compREMap map[string]*regexp.R
 
 	}
 
+	if geometryId, geometryIdOk := params["geometry_id"]; geometryIdOk {
+		jsonFields = append(jsonFields, fmt.Sprintf(`"geometry_id":"%s"`, geometryId[0]))
+	}
+
 	jsonParams := fmt.Sprintf("{%s}", strings.Join(jsonFields, ","))
 	var wpsParamms WPSParams
 	err := json.Unmarshal([]byte(jsonParams), &wpsParamms)