Expose group in /ui/dependencies

Expose the group of each dependency so that it can be added as a search
term.

See gh-145

initializr/src/main/groovy/io/spring/initializr/web/UiController.groovy

@@ -17,7 +17,6 @@
 package io.spring.initializr.web
 
 import groovy.json.JsonBuilder
-import io.spring.initializr.metadata.DependenciesCapability
 import io.spring.initializr.metadata.Dependency
 import io.spring.initializr.metadata.InitializrMetadataProvider
 import io.spring.initializr.util.Version
@@ -40,38 +39,41 @@ class UiController {
 	@Autowired
 	protected InitializrMetadataProvider metadataProvider
 
-	@RequestMapping(value = "/ui/dependencies" , produces = ["application/json"])
+	@RequestMapping(value = "/ui/dependencies", produces = ["application/json"])
 	String dependencies(@RequestParam(required = false) String version) {
-		DependenciesCapability dependenciesCapability = metadataProvider.get().dependencies
-		List<Dependency> allDependencies = dependenciesCapability.content.collectMany { it.content }
-		if (version) {
-			Version v = Version.parse(version)
-			def filteredDependencies = allDependencies.findAll { d ->
-				if (d.versionRange) {
-					return VersionRange.parse(d.versionRange).match(v)
+		def dependencyGroups = metadataProvider.get().dependencies.content
+		def content = []
+		Version v = version ? Version.parse(version) : null
+		dependencyGroups.each { g ->
+			g.content.each { d ->
+				if (v && d.versionRange) {
+					if (VersionRange.parse(d.versionRange).match(v)) {
+						content << new DependencyItem(g.name, d)
 					}
-				return true
-			}
-			writeDependencies(filteredDependencies)
 				} else {
-			writeDependencies(allDependencies)
+					content << new DependencyItem(g.name, d)
 				}
 			}
+		}
+		writeDependencies(content)
+	}
 
-	private static String writeDependencies(List<Dependency> deps) {
+	private static String writeDependencies(List<DependencyItem> items) {
 		JsonBuilder json = new JsonBuilder();
 		json {
-			dependencies deps.collect { d ->
+			dependencies items.collect { d ->
 				mapDependency(d)
 			}
 		}
 		json.toString()
 	}
 
-	private static mapDependency(Dependency d) {
+	private static mapDependency(DependencyItem item) {
 		def result = [:]
+		Dependency d = item.dependency
 		result.id = d.id
 		result.name = d.name
+		result.group = item.group
 		if (d.description) {
 			result.description = d.description
 		}
@@ -84,4 +86,14 @@ class UiController {
 		result
 	}
 
+	private static class DependencyItem {
+		private final String group
+		private final Dependency dependency
+
+		DependencyItem(String group, Dependency dependency) {
+			this.group = group
+			this.dependency = dependency
+		}
+	}
+
 }

initializr/src/test/resources/metadata/dependencies/test-dependencies-1.1.2.json

@@ -3,29 +3,35 @@
     {
       "id": "web",
       "name": "Web",
-      "description": "Web dependency description"
+      "description": "Web dependency description",
+      "group": "Core"
     },
     {
       "id": "security",
-      "name": "Security"
+      "name": "Security",
+      "group": "Core"
     },
     {
       "id": "data-jpa",
-      "name": "Data JPA"
+      "name": "Data JPA",
+      "group": "Core"
     },
     {
       "id": "org.acme:foo",
       "name": "Foo",
+      "group": "Other",
       "keywords": "thefoo,dafoo",
       "weight": 42
     },
     {
       "id": "org.acme:bar",
-      "name": "Bar"
+      "name": "Bar",
+      "group": "Other"
     },
     {
       "id": "my-api",
-      "name": "My API"
+      "name": "My API",
+      "group": "Other"
     }
   ]
 }

initializr/src/test/resources/metadata/dependencies/test-dependencies-all.json

@@ -3,37 +3,45 @@
     {
       "id": "web",
       "name": "Web",
-      "description": "Web dependency description"
+      "description": "Web dependency description",
+      "group": "Core"
     },
     {
       "id": "security",
-      "name": "Security"
+      "name": "Security",
+      "group": "Core"
     },
     {
       "id": "data-jpa",
-      "name": "Data JPA"
+      "name": "Data JPA",
+      "group": "Core"
     },
     {
       "id": "org.acme:foo",
       "name": "Foo",
+      "group": "Other",
       "keywords": "thefoo,dafoo",
       "weight": 42
     },
     {
       "id": "org.acme:bar",
-      "name": "Bar"
+      "name": "Bar",
+      "group": "Other"
     },
     {
       "id": "org.acme:biz",
-      "name": "Biz"
+      "name": "Biz",
+      "group": "Other"
     },
     {
       "id": "org.acme:bur",
-      "name": "Bur"
+      "name": "Bur",
+      "group": "Other"
     },
     {
       "id": "my-api",
-      "name": "My API"
+      "name": "My API",
+      "group": "Other"
     }
   ]
 }