Redesigned registration.

README.md

@@ -50,7 +50,6 @@ See also the [example project](https://github.com/codecentric/spring-boot-admin/
 #### Client applications
 
 Each application that want to register itself to the admin application has to include the [spring-boot-starter-admin-client](https://github.com/codecentric/spring-boot-admin/tree/master/spring-boot-starter-admin-client) as dependency. This starter JAR includes some [AutoConfiguration](http://docs.spring.io/spring-boot/docs/current-SNAPSHOT/reference/htmlsingle/#using-boot-auto-configuration "Spring Boot docu") features that includes registering tasks, controller, etc.
-
 ```
 <dependency>
 	<groupId>de.codecentric</groupId>
@@ -59,12 +58,14 @@ Each application that want to register itself to the admin application has to in
 </dependency>
 ```
 
-Inside your application.properties you also have to define the URL of the Spring Boot Admin Server, e.g.
-
+Inside your configuration (e.g. application.properties) you also have to define the URL of the Spring Boot Admin Server, e.g.
 ```
 spring.boot.admin.url=http://localhost:8080
 ```
 
+For all configuration options see [spring-boot-starter-admin-client](https://github.com/codecentric/spring-boot-admin/tree/master/spring-boot-starter-admin-client)
+
+
 #### Screenshots
 
 ##### Dashboard

spring-boot-admin-example/src/main/resources/application.properties

 spring.resources.cachePeriod=3600
 server.port=8080
 info.version=@pom.version@
+info.stage=test
 logging.file=/tmp/log.log
 spring.application.name=@pom.artifactId@
+
 spring.boot.admin.url=http://localhost:8080

spring-boot-admin-server/src/main/java/de/codecentric/boot/admin/config/WebappConfig.java

@@ -17,6 +17,7 @@ package de.codecentric.boot.admin.config;
 
 import java.util.List;
 
+import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.http.converter.HttpMessageConverter;
@@ -25,6 +26,7 @@ import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter
 
 import de.codecentric.boot.admin.controller.RegistryController;
 import de.codecentric.boot.admin.service.ApplicationRegistry;
+import de.codecentric.boot.admin.service.SimpleApplicationRegistry;
 
 @Configuration
 public class WebappConfig extends WebMvcConfigurerAdapter {
@@ -41,16 +43,17 @@ public class WebappConfig extends WebMvcConfigurerAdapter {
 	 * Controller with REST-API for spring-boot applications to register itself.
 	 */
 	@Bean
-	public RegistryController registryController() {
-		return new RegistryController();
+	public RegistryController registryController(ApplicationRegistry registry) {
+		return new RegistryController(registry);
 	}
 
 	/**
-	 * Registry for all registered application.
+	 * Default registry for all registered application.
 	 */
 	@Bean
+	@ConditionalOnMissingBean
 	public ApplicationRegistry applicationRegistry() {
-		return new ApplicationRegistry();
+		return new SimpleApplicationRegistry();
 	}
 
 }

spring-boot-admin-server/src/main/java/de/codecentric/boot/admin/controller/RegistryController.java

@@ -19,13 +19,12 @@ import java.util.List;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
-import org.springframework.web.bind.annotation.ResponseStatus;
 import org.springframework.web.bind.annotation.RestController;
 
 import de.codecentric.boot.admin.model.Application;
@@ -39,50 +38,71 @@ public class RegistryController {
 
 	private static final Logger LOGGER = LoggerFactory.getLogger(RegistryController.class);
 
-	@Autowired
-	private ApplicationRegistry registry;
+	private final ApplicationRegistry registry;
+
+	public RegistryController(ApplicationRegistry registry) {
+		this.registry = registry;
+	}
 
 	/**
 	 * Register an application within this admin application.
-	 * 
-	 * @param app
-	 *            The application infos.
+	 *
+	 * @param app The application infos.
 	 * @return The registered application.
 	 */
 	@RequestMapping(value = "/api/applications", method = RequestMethod.POST)
-	public Application register(@RequestBody Application app) {
-		LOGGER.info("Register application with ID '{}' and URL '{}'", app.getId(), app.getUrl());
-		return registry.register(app);
+	public ResponseEntity<Application> register(@RequestBody Application app) {
+		LOGGER.debug("Register application {}", app.toString());
+
+		Application registered = registry.getApplication(app.getId());
+		if (registered == null || registered.equals(app)) {
+			LOGGER.info("Application {} registered.", app.toString());
+			registry.register(app);
+			return new ResponseEntity<Application>(app, HttpStatus.CREATED);
+		}
+		else {
+			return new ResponseEntity<Application>(HttpStatus.CONFLICT);
+		}
 	}
 
 	/**
 	 * Get a single application out of the registry.
-	 * 
-	 * @param id
-	 *            The application identifier.
+	 *
+	 * @param id The application identifier.
 	 * @return The registered application.
 	 */
 	@RequestMapping(value = "/api/application/{id}", method = RequestMethod.GET)
-	public Application get(@PathVariable String id) {
+	public ResponseEntity<Application> get(@PathVariable String id) {
 		LOGGER.debug("Deliver registered application with ID '{}'", id);
-		return registry.getApplication(id);
+		Application application = registry.getApplication(id);
+		if (application != null) {
+			return new ResponseEntity<Application>(application, HttpStatus.OK);
+		}
+		else {
+			return new ResponseEntity<Application>(application, HttpStatus.NOT_FOUND);
+		}
 	}
 
 	/**
-	 * Deregister an application within this admin application.
+	 * Unregister an application within this admin application.
 	 *
 	 * @param id The application id.
 	 */
-	@ResponseStatus(value = HttpStatus.OK)
 	@RequestMapping(value = "/api/application/{id}", method = RequestMethod.DELETE)
-	public void unregister(@PathVariable String id) {
-		LOGGER.info("Deregister application with ID '{}'", id);
-		registry.unregister(id);
+	public ResponseEntity<Application> unregister(@PathVariable String id) {
+		LOGGER.info("Unregister application with ID '{}'", id);
+		Application app = registry.unregister(id);
+		if (app != null) {
+			return new ResponseEntity<Application>(app, HttpStatus.NO_CONTENT);
+		}
+		else {
+			return new ResponseEntity<Application>(HttpStatus.NOT_FOUND);
+		}
 	}
 
 	/**
 	 * List all registered applications.
-	 * 
+	 *
 	 * @return List.
 	 */
 	@RequestMapping(value = "/api/applications", method = RequestMethod.GET)

spring-boot-admin-server/src/main/java/de/codecentric/boot/admin/service/ApplicationRegistry.java

@@ -15,97 +15,43 @@
  */
 package de.codecentric.boot.admin.service;
 
-import java.net.MalformedURLException;
-import java.net.URL;
-import java.util.ArrayList;
-import java.util.HashMap;
 import java.util.List;
-import java.util.Map;
-
-import org.apache.commons.lang3.Validate;
-import org.springframework.stereotype.Service;
 
 import de.codecentric.boot.admin.model.Application;
 
 /**
- * Registry for all applications that should be managed/administrated by the spring-boot-admin application. This
- * registry is just "in-memory", so that after a restart all applications have to be registered again.
+ * Registry for all applications that should be managed/administrated by the
+ * spring-boot-admin application.
  */
-@Service
-public class ApplicationRegistry {
-
-	private final Map<String, Application> registry = new HashMap<>();
+public interface ApplicationRegistry {
 
 	/**
 	 * Register application.
-	 * 
-	 * @param app
-	 *            The Application.
-	 */
-	public Application register(Application app) {
-		Validate.notNull(app, "Application must not be null");
-		Validate.notNull(app.getId(), "ID must not be null");
-		Validate.notNull(app.getUrl(), "URL must not be null");
-		Validate.isTrue(checkUrl(app.getUrl()), "URL is not valid");
-		return registry.put(app.getId(), app);
-	}
-
-	/**
-	 * Checks the syntax of the given URL.
-	 * 
-	 * @param url
-	 *            The URL.
-	 * @return true, if valid.
+	 *
+	 * @param app The Application.
 	 */
-	private boolean checkUrl(String url) {
-		try {
-			new URL(url);
-		} catch (MalformedURLException e) {
-			return false;
-		}
-		return true;
-	}
-
-	/**
-	 * Checks, if an application is already registerd.
-	 * 
-	 * @param id
-	 *            The application ID.
-	 * @return exists?
-	 */
-	public boolean isRegistered(String id) {
-		return registry.containsKey(id);
-	}
+	void register(Application app);
 
 	/**
 	 * Get a list of all registered applications.
-	 * 
+	 *
 	 * @return List.
 	 */
-	public List<Application> getApplications() {
-		return new ArrayList<>(registry.values());
-	}
+	List<Application> getApplications();
 
 	/**
 	 * Get a specific application inside the registry.
-	 * 
-	 * @param id
-	 *            Id.
+	 *
+	 * @param id Id.
 	 * @return Application.
 	 */
-	public Application getApplication(String id) {
-		if (!isRegistered(id)) {
-			throw new IllegalArgumentException("Application with ID " + id + " is not registered");
-		}
-		return registry.get(id);
-	}
+	Application getApplication(String id);
 
 	/**
 	 * Remove a specific application from registry
 	 * @param id
+	 * @return the unregistered Application
 	 */
-	public void unregister(String id) {
-		registry.remove(id);
-	}
+	Application unregister(String id);
 
-}
+}
\ No newline at end of file

spring-boot-admin-server/src/main/java/de/codecentric/boot/admin/service/SimpleApplicationRegistry.java

+/*
+ * Copyright 2014 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 de.codecentric.boot.admin.service;
+
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.commons.lang3.Validate;
+import org.springframework.stereotype.Service;
+
+import de.codecentric.boot.admin.model.Application;
+
+/**
+ * This registry is just "in-memory", so that after a restart all applications have to be
+ * registered again.
+ */
+@Service
+public class SimpleApplicationRegistry implements ApplicationRegistry {
+
+	private final Map<String, Application> store = new HashMap<>();
+
+	@Override
+	public void register(Application app) {
+		Validate.notNull(app, "Application must not be null");
+		Validate.notNull(app.getId(), "ID must not be null");
+		Validate.notNull(app.getUrl(), "URL must not be null");
+		Validate.isTrue(checkUrl(app.getUrl()), "URL is not valid");
+		store.put(app.getId(), app);
+	}
+
+	/**
+	 * Checks the syntax of the given URL.
+	 *
+	 * @param url
+	 *            The URL.
+	 * @return true, if valid.
+	 */
+	private boolean checkUrl(String url) {
+		try {
+			new URL(url);
+		} catch (MalformedURLException e) {
+			return false;
+		}
+		return true;
+	}
+
+	@Override
+	public List<Application> getApplications() {
+		return new ArrayList<>(store.values());
+	}
+
+	@Override
+	public Application getApplication(String id) {
+		return store.get(id);
+	}
+
+	@Override
+	public Application unregister(String id) {
+		return store.remove(id);
+	}
+
+}

spring-boot-admin-server/src/main/webapp/public/index.html

@@ -29,7 +29,7 @@
 					<div class="spring-logo--container">
 						<a class="spring-boot-logo" href="/"><span></span></a>
 					</div>
-					<ul class="nav pull-right" ng-controller='navCtrl'>
+					<ul class="nav pull-right">
 						<li class="navbar-link" ng-class="{active: $state.includes('apps') ||  $state.includes('overview')  }"><a ui-sref="overview">Applications</a></li>
 						<li class="navbar-link" ng-class="{active: $state.includes('about')}"><a ui-sref="about">About</a></li>
 					</ul>

spring-boot-admin-server/src/main/webapp/public/scripts/app.js

@@ -38,9 +38,15 @@ angular.module('springBootAdmin', [
   				templateUrl: 'views/about.html'
   			})
   			.state('apps', {
+  				abstract:true,
   				url: '/apps/:id',
   				controller: 'appsCtrl',
   				templateUrl: 'views/apps.html',
+  				resolve: {
+  			      application: ['$stateParams', 'Application' , function($stateParams, Application){
+  			          return Application.query({id: $stateParams.id}).$promise;
+  			      }]
+  			   }
   			})
   			.state('apps.details', {
   				url: '/details',

spring-boot-admin-server/src/main/webapp/public/scripts/services/services.js

@@ -32,9 +32,11 @@ angular.module('springBootAdmin.services', ['ngResource'])
   		}
   	])
   	.service('ApplicationOverview', ['$http', function($http) {
-  		this.getVersion = function(app) {
+  		this.getInfo = function(app) {
   			return $http.get(app.url + '/info').success(function(response) {
   				app.version = response.version;
+  				delete response.version;
+  				app.info = response;
   			}).error(function() {
   				app.version = '---';
   			});
@@ -61,9 +63,6 @@ angular.module('springBootAdmin.services', ['ngResource'])
   				app.urlLogfile = null;
   			});
   		}
-  		this.refresh = function(app) {
-  			return $http.post(app.url + '/refresh');
-  		}
   	}])
   	.service('ApplicationDetails', ['$http', function($http) {
   		this.getInfo = function(app) {

spring-boot-admin-server/src/main/webapp/public/styles/main.css

@@ -6,7 +6,6 @@ body {
 }
 
 .container-fluid {
-  max-width: 1024px;
   margin: 0 auto;
 }
 

spring-boot-admin-server/src/main/webapp/public/views/apps.html

-<h2>{{ applicationId }}
-	<div class="btn-group">
-		<a class="btn " ng-class="{active: $state.includes('apps.details')}" ui-sref="apps.details.metrics({id: applicationId})">Details</a>
-		<a class="btn " ui-sref-active="active" ui-sref="apps.logging({id: applicationId})" >Logging</a></label>
-		<a class="btn " ui-sref-active="active" ui-sref="apps.jmx({id: applicationId})">JMX</a></label>
-		<a class="btn " ui-sref-active="active" ui-sref="apps.threads({id: applicationId})">Threads</a></label>		
+<div class="container" style="margin-bottom: 20px;">
+	<div class="row">
+		<div class="span12">
+			<h2 style="display: inline-block;">{{ application.name }}
+			<small>{{ application.url }}</small>
+			</h2>
+		</div>
 	</div>
-</h2>
+	<div class="row">		
+		<div class="span12 btn-group text-center">
+			<a class="btn" ng-class="{active: $state.includes('apps.details')}" ui-sref="apps.details.metrics({id: application.id})">Details</a>
+			<a class="btn" ui-sref-active="active" ui-sref="apps.logging({id: application.id})" >Logging</a></label>
+			<a class="btn" ui-sref-active="active" ui-sref="apps.jmx({id: application.id})">JMX</a></label>
+			<a class="btn" ui-sref-active="active" ui-sref="apps.threads({id: application.id})">Threads</a></label>		
+		</div>
+	</div>
+</div>
 <div ui-view></div>

spring-boot-admin-server/src/main/webapp/public/views/overview.html

 <h2 >Spring-Boot applications<br>
 <small>Here you'll find all Spring-Boot applications that registered itself at this admin application.</small>
 </h2>
-<div class="span12">
-	<table class="table table-striped">
-		<thead>
-			<tr>
-				<th>Application</th>
-				<th>Version</th>
-				<th>Status</th>
-				<th></th>
-			</tr>
-		</thead>
-		<tbody>
-			<tr ng-repeat="application in applications track by application.id">
-				<td><span title="{{application.url}}">{{ application.id }}</span></td>
-				<td>{{ application.version }}</td>
-				<td><span class="status-{{application.status}}">{{ application.status }}</span></td>
-				<td>
-					<span class="pull-right" ng-hide="application.status == null || application.status == 'OFFLINE'">
-						<a ng-disabled="!application.providesLogfile" target="_self" class="btn btn-success" ng-href="{{application.urlLogfile}}"><i class="icon-file icon-white"></i>Logfile</a>
-						<a ui-sref="apps.details.metrics({id: application.id})" class="btn btn-success">Details</a>
-						<a ui-sref="apps.logging({id: application.id})" class="btn btn-success">Logging</a>
-						<a ui-sref="apps.jmx({id: application.id})" class="btn btn-success">JMX</a>
-						<a ui-sref="apps.threads({id: application.id})" class="btn btn-success">Threads</a>						
-					</span>
-					<span class="pull-right" ng-show="application.status == null || application.status == 'OFFLINE'">
-						<a class="btn btn-danger" ng-click="remove(application)"><i class="icon-remove icon-white"></i>Remove</a>
-					</span>
-				</td>
-			</tr>
-		</tbody>
-	</table>
-</div>
+<table class="table table-striped">
+	<thead>
+		<tr>
+			<th>Application</th>
+			<th>URL</th>
+			<th>Version</th>
+			<th>Info</th>
+			<th>Status</th>
+			<th></th>
+		</tr>
+	</thead>
+	<tbody>
+		<tr ng-repeat="application in applications track by application.id">
+			<td>{{ application.name }}</td>
+			<td>{{ application.url }}</td>
+			<td>{{ application.version }}</td>
+			<td><span ng-repeat="(name, value) in application.info track by name">{{name}}: {{value}}<br></span></td>
+			<td><span class="status-{{application.status}}">{{ application.status }}</span></td>
+			<td>
+				<div class="btn-group pull-right" ng-hide="application.status == null || application.status == 'OFFLINE'">
+					<a ng-disabled="!application.providesLogfile" target="_self" class="btn btn-success" ng-href="{{application.urlLogfile}}"><i class="icon-file icon-white"></i>Log</a>
+					<a ui-sref="apps.details.metrics({id: application.id})" class="btn btn-success">Details</a>
+					<a ui-sref="apps.logging({id: application.id})" class="btn btn-success">Logging</a>
+					<a ui-sref="apps.jmx({id: application.id})" class="btn btn-success">JMX</a>
+					<a ui-sref="apps.threads({id: application.id})" class="btn btn-success">Threads</a>						
+				</div>	
+				<div class="btn-group pull-right" ng-show="application.status == 'UNKNOWN' || application.status == 'OFFLINE'">
+					<a class="btn btn-danger" ng-click="remove(application)"><i class="icon-remove icon-white"></i>Remove</a>
+				</div>
+			</td>
+		</tr>
+	</tbody>
+</table>

spring-boot-admin-server/src/test/java/de/codecentric/boot/admin/controller/RegistryControllerTest.java

+/*
+ * Copyright 2014 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 de.codecentric.boot.admin.controller;
+
+import static org.junit.Assert.assertEquals;
+
+import java.util.Collections;
+import java.util.List;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+
+import de.codecentric.boot.admin.model.Application;
+import de.codecentric.boot.admin.service.SimpleApplicationRegistry;
+
+public class RegistryControllerTest {
+
+	private RegistryController controller;
+
+	@Before
+	public void setup() {
+		controller = new RegistryController(new SimpleApplicationRegistry());
+	}
+
+	@Test
+	public void register() {
+		ResponseEntity<?> response = controller.register(new Application("http://localhost", "test"));
+		assertEquals(HttpStatus.CREATED, response.getStatusCode());
+		assertEquals(new Application("http://localhost", "test"), response.getBody());
+	}
+
+	@Test
+	public void register_twice() {
+		controller.register(new Application("http://localhost", "test"));
+		Application app = new Application("http://localhost", "test");
+		ResponseEntity<?> response = controller.register(app);
+
+		assertEquals(HttpStatus.CREATED, response.getStatusCode());
+		assertEquals(new Application("http://localhost", "test"), response.getBody());
+
+	}
+
+	@Test
+	public void register_sameUrl() {
+		controller.register(new Application("http://localhost", "FOO"));
+		ResponseEntity<?> response = controller.register(new Application("http://localhost", "BAR"));
+		assertEquals(HttpStatus.CONFLICT, response.getStatusCode());
+	}
+
+	@Test
+	public void get() {
+		Application app = new Application("http://localhost", "FOO");
+		controller.register(app);
+
+		ResponseEntity<?> response = controller.get(app.getId());
+		assertEquals(HttpStatus.OK, response.getStatusCode());
+		assertEquals(app, response.getBody());
+	}
+
+	@Test
+	public void get_notFound() {
+		controller.register(new Application("http://localhost", "FOO"));
+
+		ResponseEntity<?> response = controller.get("unknown");
+		assertEquals(HttpStatus.NOT_FOUND, response.getStatusCode());
+	}
+
+
+	@Test
+	public void unregister() {
+		Application app = new Application("http://localhost", "FOO");
+		controller.register(app);
+
+		ResponseEntity<?> response = controller.unregister(app.getId());
+		assertEquals(HttpStatus.NO_CONTENT, response.getStatusCode());
+		assertEquals(app, response.getBody());
+
+		assertEquals(HttpStatus.NOT_FOUND, controller.get(app.getId()).getStatusCode());
+	}
+
+	@Test
+	public void unregister_notFound() {
+		controller.register(new Application("http://localhost", "FOO"));
+
+		ResponseEntity<?> response = controller.unregister("unknown");
+		assertEquals(HttpStatus.NOT_FOUND, response.getStatusCode());
+	}
+
+	@Test
+	public void applications() {
+		Application app = new Application("http://localhost", "FOO");
+		controller.register(app);
+
+		List<Application> applications = controller.applications();
+		assertEquals(Collections.singletonList(app), applications);
+	}
+}
+

spring-boot-admin-server/src/test/java/de/codecentric/boot/admin/service/ApplicationRegistryTest.java

-package de.codecentric.boot.admin.service;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
-
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.boot.test.SpringApplicationConfiguration;
-import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
-
-import de.codecentric.boot.admin.TestAdminApplication;
-import de.codecentric.boot.admin.model.Application;
-
-@SpringApplicationConfiguration(classes=TestAdminApplication.class)
-@RunWith(SpringJUnit4ClassRunner.class)
-public class ApplicationRegistryTest {
-
-	@Autowired
-	private ApplicationRegistry registry;
-
-	@Test(expected = NullPointerException.class)
-	public void registerFailed1() throws Exception {
-		registry.register(new Application());
-	}
-
-	@Test(expected = NullPointerException.class)
-	public void registerFailed2() throws Exception {
-		Application app = new Application();
-		app.setId("abc");
-		registry.register(app);
-	}
-
-	@Test(expected = IllegalArgumentException.class)
-	public void registerFailed3() throws Exception {
-		Application app = new Application();
-		app.setId("abc");
-		app.setUrl("not-an-url");
-		registry.register(app);
-	}
-
-	@Test
-	public void register() throws Exception {
-		Application app = new Application();
-		app.setId("abc");
-		app.setUrl("http://localhost:8080");
-		registry.register(app);
-	}
-
-	@Test
-	public void isRegistered() throws Exception {
-		Application app = new Application();
-		app.setId("abc");
-		app.setUrl("http://localhost:8080");
-		registry.register(app);
-
-		assertFalse(registry.isRegistered("xyz"));
-		assertTrue(registry.isRegistered("abc"));
-	}
-
-	@Test
-	public void getApplication() throws Exception {
-		Application app = new Application();
-		app.setId("abc");
-		app.setUrl("http://localhost:8080");
-		registry.register(app);
-
-		assertEquals(app, registry.getApplication("abc"));
-	}
-
-	@Test
-	public void getApplications() throws Exception {
-		Application app = new Application();
-		app.setId("abc");
-		app.setUrl("http://localhost:8080");
-		registry.register(app);
-
-		assertEquals(1, registry.getApplications().size());
-		assertEquals(app, registry.getApplications().get(0));
-	}
-
-}

spring-boot-admin-server/src/test/java/de/codecentric/boot/admin/service/SimpleApplicationRegistryTest.java

+/*
+ * Copyright 2014 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 de.codecentric.boot.admin.service;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Test;
+
+import de.codecentric.boot.admin.model.Application;
+
+public class SimpleApplicationRegistryTest {
+
+	private ApplicationRegistry registry = new SimpleApplicationRegistry();
+
+	@Test(expected = NullPointerException.class)
+	public void registerFailed1() throws Exception {
+		registry.register(new Application(null, null));
+	}
+
+	@Test(expected = NullPointerException.class)
+	public void registerFailed2() throws Exception {
+		Application app = new Application(null, "abc");
+		registry.register(app);
+	}
+
+	@Test(expected = IllegalArgumentException.class)
+	public void registerFailed3() throws Exception {
+		Application app = new Application("not-an-url", "abc");
+		registry.register(app);
+	}
+
+	@Test
+	public void register() throws Exception {
+		Application app = new Application("http://localhost:8080", "abc");
+		registry.register(app);
+	}
+
+
+	@Test
+	public void getApplication() throws Exception {
+		Application app = new Application("http://localhost:8080", "abc");
+		registry.register(app);
+
+		assertEquals(app, registry.getApplication(app.getId()));
+	}
+
+	@Test
+	public void getApplications() throws Exception {
+		Application app = new Application("http://localhost:8080", "abc");
+		registry.register(app);
+
+		assertEquals(1, registry.getApplications().size());
+		assertEquals(app, registry.getApplications().get(0));
+	}
+
+}

spring-boot-admin-server/src/test/resources/application.properties

 spring.resources.cachePeriod=3600
 server.port=8080
-info.id=spring-boot-admin-example
 info.version=1.0.0
-spring.boot.admin.url=http://localhost:8080
+info.stage=test
 logging.file=/tmp/log.log
-
-spring.application.name=spring-boot-admin-example
\ No newline at end of file
+spring.application.name=spring-boot-admin-example
+spring.boot.admin.url=http://localhost:8080
\ No newline at end of file

spring-boot-starter-admin-client/README.md

@@ -5,21 +5,24 @@ This [Spring-Boot starter](http://docs.spring.io/spring-boot/docs/current-SNAPSH
 
 This client uses the [AutoConfiguration](http://docs.spring.io/spring-boot/docs/current-SNAPSHOT/reference/htmlsingle/#using-boot-auto-configuration "Spring Boot docu") feature of Spring Boot to register service and controller beans in the application context.
 
-The main service that is used is a registrar that registeres the application at the spring-boot-admin application by periodically calling a REST-API to check or perform the registration of itself.
+The main service that is used is a registrar that registeres the application at the spring-boot-admin application by periodically calling a REST-API to perform the registration of itself.
 
-The following properties have to be included in the environment (i.e. application.properties) to ensure all features to work properly.
+##Configuration properties
+### spring-boot-admin
+| Name                  | Description |
+| --------------------- | ----------- |
+| spring.boot.admin.url | URL of the spring-boot-admin application to register at.<br>_Mandatory_. | |
+| spring.boot.admin.contextPath | Context-path of registration point.<br>Default: api/applications |
+| spring.boot.admin.period | Time period for registration repeat.<br>Default: 10000 |
+| spring.boot.admin.client.url | Client-management-URL to register with. Can be overriden in case the reachable URL is different (e.g. Docker). Must be unique in registry.<br>Default: http://_hostname_:_${management.port}_/_${management.context-path}_ |
+| spring.boot.admin.client.name | Name to register with. Defaults to the ApplicationContexts name. Only set when it should differ.<br>Default: _${spring.application.name}_ if set, spring-boot-application otherwise. |
 
-<table>
-<tr>
-<td>info.id</td><td>The identifier in the registry - this property is published by the /info endpoint</td>
-</tr>
-<tr>
-<td>info.version</td><td>The version number - also published by the /info endpoint</td>
-</tr>
-<tr>
-<td>spring.boot.admin.url</td><td>URL of the spring-boot-admin application to register at</td>
-</tr>
-<tr>
-<td>logging.file</td><td>File path of the logfile of the application</td>
-</tr>
-</table>
+
+### Other configuration properties
+Options from other spring boot features. These should be set to enable all features.
+
+| Name                    | Description |
+| ----------------------- | ----------- |
+| spring.application.name | Name to be shown in the application list. Name of the ApplicationContext. |
+| info.version            | Version number to be shown in the application list. Also published via /info-endpoint.  |
+| logging.file            | Path to the applications logfile for access via spring-boot-admin. From Spring Boot logging configuration. |

spring-boot-starter-admin-client/pom.xml

@@ -29,5 +29,9 @@
 			<groupId>org.jolokia</groupId>
 			<artifactId>jolokia-core</artifactId>
 		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+		</dependency>
 	</dependencies>
 </project>

spring-boot-starter-admin-client/src/main/java/de/codecentric/boot/admin/config/AdminClientProperties.java

+/*
+ * Copyright 2014 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 de.codecentric.boot.admin.config;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.context.properties.ConfigurationProperties;
+
+@ConfigurationProperties(prefix = "spring.boot.admin.client")
+public class AdminClientProperties {
+
+	@Value("http://#{T(java.net.InetAddress).localHost.canonicalHostName}:${server.port:${management.port:8080}}${management.context-path:/}")
+	private String url;
+
+	@Value("${spring.application.name:spring-boot-application}")
+	private String name;
+
+	/**
+	 * @return Client-management-URL to register with. Can be overriden in case the
+	 * reachable URL is different (e.g. Docker). Must be unique in registry.
+	 */
+	public String getUrl() {
+		return url;
+	}
+
+	public void setUrl(String url) {
+		this.url = url;
+	}
+
+	/**
+	 * @return Name to register with.
+	 */
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+}

spring-boot-starter-admin-client/src/main/java/de/codecentric/boot/admin/config/AdminProperties.java

+/*
+ * Copyright 2014 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 de.codecentric.boot.admin.config;
+
+import org.springframework.boot.context.properties.ConfigurationProperties;
+
+@ConfigurationProperties(prefix = "spring.boot.admin")
+public class AdminProperties {
+
+	private String url;
+
+	private String contextPath = "api/applications";
+
+	private int period = 10000;
+
+	public void setUrl(String url) {
+		this.url = url;
+	}
+
+	/**
+	 *
+	 * @return the Spring Boot Admin Server's url.
+	 */
+	public String getUrl() {
+		return url;
+	}
+
+
+	/**
+	 * @return the Spring Boot Admin Server's context path.
+	 */
+	public String getContextPath() {
+		return contextPath;
+	}
+
+	public void setContextPath(String contextPath) {
+		this.contextPath = contextPath;
+	}
+
+	/**
+	 *
+	 * @return the time interval (in ms) the registration is repeated.
+	 */
+	public int getPeriod() {
+		return period;
+	}
+
+	public void setPeriod(int period) {
+		this.period = period;
+	}
+}

spring-boot-starter-admin-client/src/main/java/de/codecentric/boot/admin/config/SpringBootAdminClientAutoConfiguration.java

@@ -16,12 +16,15 @@
 package de.codecentric.boot.admin.config;
 
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
 import org.springframework.scheduling.config.ScheduledTaskRegistrar;
+import org.springframework.web.client.RestTemplate;
 
 import de.codecentric.boot.admin.controller.LogfileController;
-import de.codecentric.boot.admin.services.SpringBootAdminRegistratorTask;
+import de.codecentric.boot.admin.services.SpringBootAdminRegistrator;
 import de.codecentric.boot.admin.web.SimpleCORSFilter;
 
 /**
@@ -30,14 +33,24 @@ import de.codecentric.boot.admin.web.SimpleCORSFilter;
  */
 @Configuration
 @ConditionalOnProperty("spring.boot.admin.url")
+@EnableConfigurationProperties({ AdminProperties.class, AdminClientProperties.class })
 public class SpringBootAdminClientAutoConfiguration {
 
 	/**
 	 * Task that registers the application at the spring-boot-admin application.
 	 */
 	@Bean
-	public Runnable registrator() {
-		return new SpringBootAdminRegistratorTask();
+	public SpringBootAdminRegistrator registrator(AdminProperties adminProps,
+			AdminClientProperties clientProps) {
+		return new SpringBootAdminRegistrator(restTemplate(), adminProps, clientProps);
+	}
+
+
+	@Bean
+	public RestTemplate restTemplate() {
+		RestTemplate template = new RestTemplate();
+		template.getMessageConverters().add(new MappingJackson2HttpMessageConverter());
+		return template;
 	}
 
 	/**
@@ -52,9 +65,17 @@ public class SpringBootAdminClientAutoConfiguration {
 	 * TaskRegistrar that triggers the RegistratorTask every ten seconds.
 	 */
 	@Bean
-	public ScheduledTaskRegistrar taskRegistrar() {
+	public ScheduledTaskRegistrar taskRegistrar(final SpringBootAdminRegistrator registrator, AdminProperties adminProps) {
 		ScheduledTaskRegistrar registrar = new ScheduledTaskRegistrar();
-		registrar.addFixedRateTask(registrator(), 10000);
+
+		Runnable registratorTask = new Runnable() {
+			@Override
+			public void run() {
+				registrator.register();
+			}
+		};
+
+		registrar.addFixedRateTask(registratorTask, adminProps.getPeriod());
 		return registrar;
 	}
 

spring-boot-starter-admin-client/src/main/java/de/codecentric/boot/admin/controller/LogfileController.java

@@ -25,6 +25,7 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.core.env.Environment;
 import org.springframework.core.io.FileSystemResource;
 import org.springframework.core.io.Resource;
+import org.springframework.http.MediaType;
 import org.springframework.stereotype.Controller;
 import org.springframework.util.FileCopyUtils;
 import org.springframework.web.bind.annotation.RequestMapping;
@@ -55,8 +56,9 @@ public class LogfileController {
 			LOGGER.error("Logfile download failed for missing file at path=" + path);
 			return "Logfile download failed for missing file at path=" + path;
 		}
-		response.setContentType("application/octet-stream");
+		response.setContentType(MediaType.TEXT_PLAIN_VALUE);
 		response.setHeader("Content-Disposition", "attachment; filename=\"" + file.getFilename() + "\"");
+
 		try {
 			FileCopyUtils.copy(file.getInputStream(), response.getOutputStream());
 		} catch (IOException e) {

spring-boot-starter-admin-client/src/main/java/de/codecentric/boot/admin/model/Application.java

@@ -16,68 +16,113 @@
 package de.codecentric.boot.admin.model;
 
 import java.io.Serializable;
+import java.nio.charset.Charset;
+import java.security.MessageDigest;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.annotation.JsonProperty;
 
 /**
  * The domain model for all registered application at the spring boot admin application.
  */
+@JsonIgnoreProperties(ignoreUnknown = true)
 public class Application implements Serializable {
-
 	private static final long serialVersionUID = 1L;
 
-	private String id;
-
-	private String url;
+	private final String id;
+	private final String url;
+	private final String name;
 
-	public String getId() {
-		return id;
+	@JsonCreator
+	public Application(@JsonProperty("url") String url, @JsonProperty("name") String name) {
+		this(url.replaceFirst("/+$", ""), name, generateId(url.replaceFirst("/+$", "")));
 	}
 
-	public void setId(String id) {
+	protected Application(String url, String name, String id) {
+		this.url = url;
+		this.name = name;
 		this.id = id;
 	}
 
-	public String getUrl() {
-		return url;
+	public String getId() {
+		return id;
 	}
 
-	public void setUrl(String url) {
-		this.url = url;
+	public String getUrl() {
+		return url;
 	}
 
 	@Override
 	public String toString() {
-		return id + " : " + url;
+		return "[id=" + id + ", url=" + url + ", name=" + name + "]";
+	}
+
+	public String getName() {
+		return name;
 	}
 
 	@Override
 	public int hashCode() {
 		final int prime = 31;
 		int result = 1;
-		result = prime * result + ((id == null) ? 0 : id.hashCode());
+		result = prime * result + ((name == null) ? 0 : name.hashCode());
 		result = prime * result + ((url == null) ? 0 : url.hashCode());
 		return result;
 	}
 
 	@Override
 	public boolean equals(Object obj) {
-		if (this == obj)
+		if (this == obj) {
 			return true;
-		if (obj == null)
+		}
+		if (obj == null) {
 			return false;
-		if (getClass() != obj.getClass())
+		}
+		if (getClass() != obj.getClass()) {
 			return false;
+		}
 		Application other = (Application) obj;
-		if (id == null) {
-			if (other.id != null)
+		if (name == null) {
+			if (other.name != null) {
 				return false;
-		} else if (!id.equals(other.id))
+			}
+		}
+		else if (!name.equals(other.name)) {
 			return false;
+		}
 		if (url == null) {
-			if (other.url != null)
+			if (other.url != null) {
 				return false;
-		} else if (!url.equals(other.url))
+			}
+		}
+		else if (!url.equals(other.url)) {
 			return false;
+		}
 		return true;
 	}
 
+	private static final char[] HEX_CHARS = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd',
+		'e', 'f' };
+
+	private static String generateId(String url) {
+		try {
+			MessageDigest digest = MessageDigest.getInstance("SHA-1");
+			byte[] bytes = digest.digest(url.getBytes(Charset.forName("UTF-8")));
+			return new String(encodeHex(bytes, 0, 8));
+		}
+		catch (Exception e) {
+			throw new IllegalStateException(e);
+		}
+	}
+
+	private static char[] encodeHex(byte[] bytes, int offset, int length) {
+		char chars[] = new char[length];
+		for (int i = 0; i < length; i = i + 2) {
+			byte b = bytes[offset + (i / 2)];
+			chars[i] = HEX_CHARS[(b >>> 0x4) & 0xf];
+			chars[i + 1] = HEX_CHARS[b & 0xf];
+		}
+		return chars;
+	}
 }

spring-boot-starter-admin-client/src/main/java/de/codecentric/boot/admin/services/SpringBootAdminRegistrator.java

+/*
+ * Copyright 2014 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 de.codecentric.boot.admin.services;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.client.RestTemplate;
+
+import de.codecentric.boot.admin.config.AdminClientProperties;
+import de.codecentric.boot.admin.config.AdminProperties;
+import de.codecentric.boot.admin.model.Application;
+
+/**
+ * Registers the client application at spring-boot-admin-server
+ */
+public class SpringBootAdminRegistrator {
+
+	private static final Logger LOGGER = LoggerFactory.getLogger(SpringBootAdminRegistrator.class);
+
+	public SpringBootAdminRegistrator(RestTemplate template, AdminProperties adminProps,
+			AdminClientProperties clientProps) {
+		this.clientProps = clientProps;
+		this.adminProps = adminProps;
+		this.template = template;
+	}
+
+	private AdminClientProperties clientProps;
+
+	private AdminProperties adminProps;
+
+	private final RestTemplate template;
+
+	/**
+	 * Registers the client application at spring-boot-admin-server.
+	 * @return true if successful
+	 */
+	public boolean register() {
+		Application app = createApplication();
+
+		try {
+			ResponseEntity<Application> response = template.postForEntity(
+					adminProps.getUrl() + '/' + adminProps.getContextPath(), app, Application.class);
+
+			if (response.getStatusCode().equals(HttpStatus.CREATED)) {
+				LOGGER.info("Application registered itself as {}", response.getBody());
+				return true;
+			}
+			else if (response.getStatusCode().equals(HttpStatus.CONFLICT)) {
+				LOGGER.warn("Application failed to registered itself as {} because of conflict in registry.", app);
+			}
+			else {
+				LOGGER.warn("Application failed to registered itself as {}. Response: {}", app, response.toString());
+			}
+		}
+		catch (Exception ex) {
+			LOGGER.warn("Failed to register application as {} at spring-boot-admin: {}", app, ex.getMessage());
+		}
+
+		return false;
+	}
+
+	protected Application createApplication() {
+		Application app = new Application(clientProps.getUrl(), clientProps.getName());
+		return app;
+	}
+}

spring-boot-starter-admin-client/src/main/java/de/codecentric/boot/admin/services/SpringBootAdminRegistratorTask.java

-/*
- * Copyright 2014 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 de.codecentric.boot.admin.services;
-
-import java.net.InetAddress;
-import java.net.URL;
-import java.util.ArrayList;
-
-import javax.annotation.PostConstruct;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.core.env.Environment;
-import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
-import org.springframework.util.Assert;
-import org.springframework.web.client.RestTemplate;
-
-import de.codecentric.boot.admin.model.Application;
-
-/**
- * Scheduler that checks the registration of the application at the spring-boot-admin.
- */
-public class SpringBootAdminRegistratorTask implements Runnable {
-
-	private static final Logger LOGGER = LoggerFactory.getLogger(SpringBootAdminRegistratorTask.class);
-
-	@Autowired
-	private Environment env;
-
-	@PostConstruct
-	public void check() {
-		Assert.notNull(env.getProperty("spring.boot.admin.url"),
-				"The URL of the spring-boot-admin application is mandatory");
-		Assert.notNull(env.getProperty("server.port"), "The server port of the application is mandatory");
-		Assert.notNull(env.getProperty("spring.application.name"), "The id of the application is mandatory");
-	}
-
-	/**
-	 * @see java.lang.Runnable#run()
-	 */
-	@Override
-	public void run() {
-		try {
-			String id = env.getProperty("info.id");
-			int port = env.getProperty("server.port", Integer.class);
-			String adminUrl = env.getProperty("spring.boot.admin.url");
-			RestTemplate template = new RestTemplate();
-			template.getMessageConverters().add(new MappingJackson2HttpMessageConverter());
-			ApplicationList list = template.getForObject(adminUrl + "/api/applications", ApplicationList.class);
-			for (Application app : list) {
-				if (id.equals(app.getId())) {
-					// the application is already registered at the admin tool
-					LOGGER.debug("Application already registered with ID '{}'", id);
-					return;
-				}
-			}
-			// register the application with the used URL and port
-			String managementPath = env.getProperty("management.context-path", "");
-			String url = new URL("http", InetAddress.getLocalHost().getCanonicalHostName(), port, managementPath)
-			.toString();
-			Application app = new Application();
-			app.setId(id);
-			app.setUrl(url);
-			template.postForObject(adminUrl + "/api/applications", app, String.class);
-			LOGGER.info("Application registered itself at the admin application with ID '{}' and URL '{}'", id, url);
-		}
-		catch (Exception e) {
-			LOGGER.warn("Failed to register application at spring-boot-admin, message={}", e.getMessage());
-		}
-	}
-
-	private static class ApplicationList extends ArrayList<Application> {
-		private static final long serialVersionUID = 1L;
-	}
-
-}

spring-boot-starter-admin-client/src/test/java/de/codecentric/boot/admin/model/ApplicationTest.java

+/*
+ * Copyright 2014 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 de.codecentric.boot.admin.model;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+
+import org.junit.Test;
+
+public class ApplicationTest {
+
+	@Test
+	public void url_id() {
+		Application a = new Application("http://localhost:8080/", null);
+		Application b = new Application("http://localhost:8080", null);
+		assertEquals("same urls must have same id", a.getId(), b.getId());
+
+		Application z = new Application("http://127.0.0.1:8080", null);
+		assertFalse("different urls must have diffenrent Id", a.getId().equals(z.getId()));
+	}
+
+	public void equals() {
+		Application a = new Application("http://localhost:8080/", "FOO");
+		Application b = new Application("http://localhost:8080", "FOO");
+
+		assertEquals("same url and same name must be equals", a, b);
+		assertEquals("hashcode should be equals", a.hashCode(), b.hashCode());
+
+		Application z = new Application("http://127.0.0.1:8080", "FOO");
+		assertFalse("different urls same name must not be equals", a.equals(z));
+
+		Application y = new Application("http://localhost:8080", "BAR");
+		assertFalse("same urls different name must not be equals", a.getId().equals(y.getId()));
+	}
+}

spring-boot-starter-admin-client/src/test/java/de/codecentric/boot/admin/services/SpringBootAdminRegistratorTest.java

+/*
+ * Copyright 2014 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 de.codecentric.boot.admin.services;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.Matchers.eq;
+import static org.mockito.Matchers.isA;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import org.junit.Test;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.client.RestClientException;
+import org.springframework.web.client.RestTemplate;
+
+import de.codecentric.boot.admin.config.AdminClientProperties;
+import de.codecentric.boot.admin.config.AdminProperties;
+import de.codecentric.boot.admin.model.Application;
+
+public class SpringBootAdminRegistratorTest {
+
+	@Test
+	public void register_successful() {
+		AdminProperties adminProps = new AdminProperties();
+		adminProps.setUrl("http://sba:8080");
+
+		AdminClientProperties clientProps = new AdminClientProperties();
+		clientProps.setUrl("http://localhost:8080");
+		clientProps.setName("AppName");
+
+		RestTemplate restTemplate = mock(RestTemplate.class);
+		when(restTemplate.postForEntity(isA(String.class), isA(Application.class), eq(Application.class))).thenReturn(
+				new ResponseEntity<Application>(HttpStatus.CREATED));
+
+		SpringBootAdminRegistrator registrator = new SpringBootAdminRegistrator(restTemplate, adminProps, clientProps);
+		boolean result = registrator.register();
+
+		assertTrue(result);
+		verify(restTemplate).postForEntity("http://sba:8080/api/applications",
+				new Application("http://localhost:8080", "AppName"), Application.class);
+	}
+
+	@Test
+	public void register_failed() {
+		AdminProperties adminProps = new AdminProperties();
+		adminProps.setUrl("http://sba:8080");
+		AdminClientProperties clientProps = new AdminClientProperties();
+		clientProps.setUrl("http://localhost:8080");
+		clientProps.setName("AppName");
+
+		RestTemplate restTemplate = mock(RestTemplate.class);
+		when(restTemplate.postForEntity(isA(String.class), isA(Application.class), eq(Application.class))).thenThrow(
+				new RestClientException("Error"));
+
+		SpringBootAdminRegistrator registrator = new SpringBootAdminRegistrator(restTemplate, adminProps, clientProps);
+		boolean result = registrator.register();
+
+		assertFalse(result);
+	}
+
+}