Add optional url property to a dependency

initializr-generator/src/main/groovy/io/spring/initializr/metadata/Dependency.groovy

@@ -92,6 +92,8 @@ class Dependency extends MetadataElement {
 
 	String repository
 
+	List<Link> links = []
+
 	@JsonInclude(JsonInclude.Include.NON_DEFAULT)
 	int weight
 

initializr-generator/src/main/groovy/io/spring/initializr/metadata/Link.groovy

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2012-2015 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.spring.initializr.metadata
+
+/**
+ * @author Dave Syer
+ *
+ */
+class Link {
+
+	String id
+
+	URL url
+
+	String description
+
+}

initializr-service/src/main/resources/application.yml

@@ -167,6 +167,10 @@ initializr:
       content:
         - name: Web
           id: web
+          links:
+            - id: rest-guide
+              url: https://spring.io/guides/gs/rest-service/
+              description: 'Guide: getting started building a REST service'
           description: Full-stack web development with Tomcat and Spring MVC
           weight: 100
           facets:

initializr-web/src/main/groovy/io/spring/initializr/web/mapper/DependencyMetadataV21JsonMapper.groovy

@@ -58,6 +58,9 @@ class DependencyMetadataV21JsonMapper implements DependencyMetadataJsonMapper {
 		if (dep.repository) {
 			result.repository = dep.repository
 		}
+		if (dep.links) {
+			result.links = dep.links
+		}
 		result
 	}
 

initializr-web/src/main/groovy/io/spring/initializr/web/mapper/InitializrMetadataV21JsonMapper.groovy

@@ -53,6 +53,9 @@ class InitializrMetadataV21JsonMapper extends InitializrMetadataV2JsonMapper {
 		if (dependency.versionRange) {
 			content['versionRange'] = dependency.versionRange
 		}
+		if (dependency.links) {
+			content.links = dependency.links
+		}
 		content
 	}
 

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

@@ -83,6 +83,10 @@ class UiController {
 		if (d.description) {
 			result.description = d.description
 		}
+		if (d.links) {
+			result.url = d.links[0].url
+			result.links = d.links
+		}
 		if (d.weight) {
 			result.weight = d.weight
 		}

initializr-web/src/main/resources/static/css/spring.css

@@ -65,6 +65,10 @@ input[type=text] {
     margin-left: 0.2em;
 }
 
+.tag a {
+    color: #ffffff;
+}
+
 .advanced {
     margin: 1em 0;
 }
@@ -76,6 +80,12 @@ input[type=text] {
     display: block;
 }
 
+.external-links {
+    padding: 0;
+}
+.external-links li {
+    list-style-type: none;
+}
 /* autocomplete */
 
 #autocomplete, .twitter-typeahead, .tt-hint {

initializr-web/src/main/resources/static/js/start.js

@@ -136,9 +136,10 @@ $(function () {
             }
         });
     };
-    var addTag = function (id, name) {
+    var addTag = function (id, name, url) {
         if ($("#starters div[data-id='" + id + "']").length == 0) {
-            $("#starters").append("<div class='tag' data-id='" + id + "'>" + name +
+            var link = url ? "<a href='" + url + "'>" + name + "</a>" : name;
+            $("#starters").append("<div class='tag' data-id='" + id + "'>" + link +
                 "<button type='button' class='close' aria-label='Close'><span aria-hidden='true'>&times;</span></button></div>");
         }
     };
@@ -225,7 +226,7 @@ $(function () {
             $("#dependencies input[value='" + suggestion.id + "']").prop('checked', false);
         }
         else {
-            addTag(suggestion.id, suggestion.name);
+            addTag(suggestion.id, suggestion.name, suggestion.url);
             $("#dependencies input[value='" + suggestion.id + "']").prop('checked', true);
         }
         $('#autocomplete').typeahead('val', '');
@@ -245,7 +246,7 @@ $(function () {
         var value = $(this).val()
         if ($(this).prop('checked')) {
             var results = starters.get(value);
-            addTag(results[0].id, results[0].name);
+            addTag(results[0].id, results[0].name, results[0].url);
         } else {
             removeTag(value);
         }

initializr-web/src/main/resources/templates/home.html

@@ -143,6 +143,13 @@ <h3>${it.name}</h3>
                             <label>
                                 <input tabindex="13" type="checkbox" name="style" value="${it.id}">${it.name}
                                 <p class="help-block">${it.description}</p>
+                                <% if (it.links) { %>
+	                                <ul class="external-links"><% it.links.each { %>
+	                                  <li><a href="${it.url}">
+                                          <span class="glyphicon glyphicon-link" aria-hidden="true"></span>
+                                          ${it.description?:it.url}</a></li>
+	                                <% } %></ul>
+                                <% } %>
                                 <% if (it.versionRequirement) { %>
                                 <p class="help-block version-requirement">requires Spring Boot ${it.versionRequirement}</p>
                                 <% } %>