Merge pull request #3 from stac-extensions/common-enum

Validate common_name as enum

CHANGELOG.md

@@ -16,4 +16,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 
+- `common_name` is validated as an enum (no other values allowed)
+
 [Unreleased]: <https://github.com/stac-extensions/eo/compare/v1.0.0...HEAD>

README.md

@@ -112,8 +112,8 @@ In some cases the full transmission profile is needed, such as when harmonizing
 
 #### Common Band Names
 
-The band's common_name is the name that is commonly used to refer to that band's spectral
-properties. The table below shows the common name based on the average band range for the band
+The band's `common_name` is the name that is commonly used to refer to that band's spectral
+properties. The table below shows the allowed common names based on the average band range for the band
 numbers of several popular instruments.
 
 | Common Name | Band Range (μm) | Landsat 5/7 | Landsat 8 | Sentinel 2 | MODIS | NAIP |

json-schema/schema.json

@@ -147,7 +147,24 @@
           },
           "common_name": {
             "title": "Common Name of the band",
-            "type": "string"
+            "type": "string",
+            "enum": [
+              "coastal",
+              "blue",
+              "green",
+              "red",
+              "yellow",
+              "pan",
+              "nir",
+              "nir08",
+              "nir09",
+              "cirrus",
+              "swir16",
+              "swir22",
+              "lwir",
+              "lwir11",
+              "lwir12"
+            ]
           },
           "center_wavelength": {
             "title": "Center Wavelength",