Make hystrix dashboard work with a context path

I didn't see a way to do this without dynamic rendering, so
now we have a freemarker dependency (not huge I guess).

Fixes gh-51

spring-cloud-netflix-core/src/main/java/org/springframework/cloud/netflix/archaius/ArchaiusAutoConfiguration.java

@@ -10,11 +10,13 @@ import static com.netflix.config.ConfigurationManager.URL_CONFIG_NAME;
 
 import java.util.concurrent.atomic.AtomicBoolean;
 
+import org.apache.commons.configuration.ConfigurationBuilder;
 import org.apache.commons.configuration.EnvironmentConfiguration;
 import org.apache.commons.configuration.SystemConfiguration;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.core.env.ConfigurableEnvironment;
@@ -27,6 +29,7 @@ import com.netflix.config.DynamicURLConfiguration;
  * @author Spencer Gibb
  */
 @Configuration
+@ConditionalOnClass({ConcurrentCompositeConfiguration.class, ConfigurationBuilder.class})
 public class ArchaiusAutoConfiguration {
 
     private static final Logger logger = LoggerFactory.getLogger(ArchaiusAutoConfiguration.class);

spring-cloud-netflix-core/src/main/java/org/springframework/cloud/netflix/eureka/EurekaClientConfiguration.java

@@ -26,7 +26,6 @@ import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean
 import org.springframework.boot.context.embedded.EmbeddedServletContainerInitializedEvent;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.cloud.client.discovery.DiscoveryClient;
-import org.springframework.cloud.netflix.ribbon.SpringClientFactory;
 import org.springframework.context.ApplicationListener;
 import org.springframework.context.SmartLifecycle;
 import org.springframework.context.annotation.Bean;

spring-cloud-netflix-hystrix-dashboard/pom.xml

@@ -20,6 +20,10 @@
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>
         </dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-freemarker</artifactId>
+		</dependency>
         <dependency>
             <groupId>org.springframework.cloud</groupId>
             <artifactId>spring-cloud-netflix-core</artifactId>
@@ -28,10 +32,6 @@
         	<groupId>org.apache.httpcomponents</groupId>
         	<artifactId>httpclient</artifactId>
         </dependency>
-        <dependency>
-            <groupId>com.netflix.eureka</groupId>
-            <artifactId>eureka-client</artifactId>
-        </dependency>
         <dependency>
             <groupId>com.netflix.hystrix</groupId>
             <artifactId>hystrix-core</artifactId>
@@ -48,5 +48,10 @@
 			<groupId>org.webjars</groupId>
 			<artifactId>d3js</artifactId>
 		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+		</dependency>
     </dependencies>
 </project>

spring-cloud-netflix-hystrix-dashboard/src/main/java/org/springframework/cloud/netflix/hystrix/dashboard/HystrixDashboardConfiguration.java

@@ -37,6 +37,11 @@ public class HystrixDashboardConfiguration {
 		return new ServletRegistrationBean(new ProxyStreamServlet(), "/proxy.stream");
 	}
 
+	@Bean
+	public HystrixDashboardController hsytrixDashboardController() {
+		return new HystrixDashboardController();
+	}
+
 	/**
 	 * Proxy an EventStream request (data.stream via proxy.stream) since EventStream does not yet support CORS (https://bugs.webkit.org/show_bug.cgi?id=61862)
 	 * so that a UI can request a stream from a different server.

spring-cloud-netflix-hystrix-dashboard/src/main/java/org/springframework/cloud/netflix/hystrix/dashboard/HystrixDashboardController.java

@@ -0,0 +1,52 @@
+/*
+ * Copyright 2013-2014 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 org.springframework.cloud.netflix.hystrix.dashboard;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.context.request.WebRequest;
+
+/**
+ * @author Dave Syer
+ *
+ */
+@Controller
+public class HystrixDashboardController {
+
+	@RequestMapping("/hystrix")
+	public String home(Model model, WebRequest request) {
+		model.addAttribute("basePath", extractPath(request));
+		return "index";
+	}
+
+	@RequestMapping("/hystrix/monitor")
+	public String monitor(Model model, WebRequest request) {
+		model.addAttribute("basePath", extractPath(request));
+		model.addAttribute("contextPath", request.getContextPath());
+		return "monitor";
+	}
+
+	private String extractPath(WebRequest request) {
+		String path = request.getContextPath()
+				+ (String) request
+						.getAttribute(
+								"org.springframework.web.servlet.HandlerMapping.pathWithinHandlerMapping",
+								WebRequest.SCOPE_REQUEST);
+		return path;
+	}
+
+}

spring-cloud-netflix-hystrix-dashboard/src/main/resources/static/hystrix/components/hystrixCommand/hystrixCommand.js

@@ -2,10 +2,10 @@
 (function(window) {
 
 	// cache the templates we use on this page as global variables (asynchronously)
-	jQuery.get(getRelativePath("../components/hystrixCommand/templates/hystrixCircuit.html"), function(data) {
+	jQuery.get(getRelativePath("components/hystrixCommand/templates/hystrixCircuit.html"), function(data) {
 		hystrixTemplateCircuit = data;
 	});
-	jQuery.get(getRelativePath("../components/hystrixCommand/templates/hystrixCircuitContainer.html"), function(data) {
+	jQuery.get(getRelativePath("components/hystrixCommand/templates/hystrixCircuitContainer.html"), function(data) {
 		hystrixTemplateCircuitContainer = data;
 	});
 

spring-cloud-netflix-hystrix-dashboard/src/main/resources/static/hystrix/components/hystrixThreadPool/hystrixThreadPool.js

@@ -2,10 +2,10 @@
 (function(window) {
 
 	// cache the templates we use on this page as global variables (asynchronously)
-	jQuery.get(getRelativePath("../components/hystrixThreadPool/templates/hystrixThreadPool.html"), function(data) {
+	jQuery.get(getRelativePath("components/hystrixThreadPool/templates/hystrixThreadPool.html"), function(data) {
 		htmlTemplate = data;
 	});
-	jQuery.get(getRelativePath("../components/hystrixThreadPool/templates/hystrixThreadPoolContainer.html"), function(data) {
+	jQuery.get(getRelativePath("components/hystrixThreadPool/templates/hystrixThreadPoolContainer.html"), function(data) {
 		htmlTemplateContainer = data;
 	});
 

spring-cloud-netflix-hystrix-dashboard/src/main/resources/templates/index.ftl

@@ -1,17 +1,18 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <html>
 <head>
+<base href="${basePath}">
 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
 <title>Hystrix Dashboard</title>
 
 	<!-- Javascript to monitor and display -->
-	<script src="/webjars/jquery/2.1.1/jquery.min.js" type="text/javascript"></script>
+	<script src="webjars/jquery/2.1.1/jquery.min.js" type="text/javascript"></script>
 	
 	<script>
 		function sendToMonitor() {
 			
 			if($('#stream').val().length > 0) {
-				var url = "/hystrix/monitor/monitor.html?stream=" + encodeURIComponent($('#stream').val()) + "";
+				var url = "hystrix/monitor?stream=" + encodeURIComponent($('#stream').val()) + "";
 				if($('#delay').val().length > 0) {	
 					url += "&delay=" + $('#delay').val();
 				}

spring-cloud-netflix-hystrix-dashboard/src/main/resources/templates/monitor.ftl

@@ -1,31 +1,32 @@
 <!doctype html>
 <html lang="en">
 <head>
+	<base href="${basePath}">
 	<meta charset="utf-8" />
 	<title>Hystrix Monitor</title>
 	<meta name="viewport" content="width=device-width, initial-scale=1.0" />
 
 	<!-- Setup base for everything -->
-	<link rel="stylesheet" type="text/css" href="../css/global.css" />
+	<link rel="stylesheet" type="text/css" href="css/global.css" />
 	
 	<!-- Our custom CSS -->
-	<link rel="stylesheet" type="text/css" href="monitor.css" />
+	<link rel="stylesheet" type="text/css" href="css/monitor.css" />
 
 	<!-- d3 -->
-    <script type="text/javascript" src="/webjars/d3js/3.4.11/d3.min.js" ></script>
+    <script type="text/javascript" src="../webjars/d3js/3.4.11/d3.min.js" ></script>
 	
 	<!-- Javascript to monitor and display -->
-    <script type="text/javascript" src="/webjars/jquery/2.1.1/jquery.min.js" ></script>
-	<script type="text/javascript" src="../js/jquery.tinysort.min.js"></script>
-	<script type="text/javascript" src="../js/tmpl.js"></script>
+    <script type="text/javascript" src="../webjars/jquery/2.1.1/jquery.min.js" ></script>
+	<script type="text/javascript" src="js/jquery.tinysort.min.js"></script>
+	<script type="text/javascript" src="js/tmpl.js"></script>
 	
 	<!-- HystrixCommand -->
-	<script type="text/javascript" src="../components/hystrixCommand/hystrixCommand.js"></script>
-	<link rel="stylesheet" type="text/css" href="../components/hystrixCommand/hystrixCommand.css" />
+	<script type="text/javascript" src="components/hystrixCommand/hystrixCommand.js"></script>
+	<link rel="stylesheet" type="text/css" href="components/hystrixCommand/hystrixCommand.css" />
 	
 	<!-- HystrixThreadPool -->
-	<script type="text/javascript" src="../components/hystrixThreadPool/hystrixThreadPool.js"></script>
-	<link rel="stylesheet" type="text/css" href="../components/hystrixThreadPool/hystrixThreadPool.css" />
+	<script type="text/javascript" src="components/hystrixThreadPool/hystrixThreadPool.js"></script>
+	<link rel="stylesheet" type="text/css" href="components/hystrixThreadPool/hystrixThreadPool.css" />
 
 </head>
 <body>
@@ -96,8 +97,8 @@
 				stream = stream + "&delay=" + getUrlVars()["delay"];
 			}
 			
-			var commandStream = "/proxy.stream?origin=" + stream;
-			var poolStream = "/proxy.stream?origin=" + stream;
+			var commandStream = "${contextPath}/proxy.stream?origin=" + stream;
+			var poolStream = "${contextPath}/proxy.stream?origin=" + stream;
 			
 			if(getUrlVars()["title"] != undefined) {
 				$('#title_name').html("Hystrix Stream: " + decodeURIComponent(getUrlVars()["title"]))

spring-cloud-netflix-hystrix-dashboard/src/test/java/org/springframework/cloud/netflix/hystrix/dashboard/HystrixDashboardContextTests.java

@@ -0,0 +1,86 @@
+/*
+ * Copyright 2013-2014 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 org.springframework.cloud.netflix.hystrix.dashboard;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.boot.builder.SpringApplicationBuilder;
+import org.springframework.boot.test.IntegrationTest;
+import org.springframework.boot.test.SpringApplicationConfiguration;
+import org.springframework.boot.test.TestRestTemplate;
+import org.springframework.cloud.netflix.hystrix.dashboard.HystrixDashboardContextTests.Application;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.web.WebAppConfiguration;
+
+/**
+ * @author Dave Syer
+ *
+ */
+@RunWith(SpringJUnit4ClassRunner.class)
+@SpringApplicationConfiguration(classes = Application.class)
+@WebAppConfiguration
+@IntegrationTest({ "server.port=0", "spring.application.name=hystrix-dashboard", "server.contextPath=/context" })
+public class HystrixDashboardContextTests {
+
+	@Value("${local.server.port}")
+	private int port = 0;
+
+	@Test
+	public void homePage() {
+		ResponseEntity<String> entity = new TestRestTemplate().getForEntity(
+				"http://localhost:" + port + "/context/hystrix", String.class);
+		assertEquals(HttpStatus.OK, entity.getStatusCode());
+	}
+
+	@Test
+	public void cssAvailable() {
+		ResponseEntity<String> entity = new TestRestTemplate().getForEntity(
+				"http://localhost:" + port + "/context/hystrix/css/global.css", String.class);
+		assertEquals(HttpStatus.OK, entity.getStatusCode());
+	}
+
+	@Test
+	public void webjarsAvailable() {
+		ResponseEntity<String> entity = new TestRestTemplate().getForEntity(
+				"http://localhost:" + port + "/context/webjars/jquery/2.1.1/jquery.min.js", String.class);
+		assertEquals(HttpStatus.OK, entity.getStatusCode());
+	}
+
+	@Test
+	public void monitorPage() {
+		ResponseEntity<String> entity = new TestRestTemplate().getForEntity(
+				"http://localhost:" + port + "/context/hystrix/monitor", String.class);
+		assertEquals(HttpStatus.OK, entity.getStatusCode());
+	}
+
+	@Configuration
+	@EnableAutoConfiguration
+	@EnableHystrixDashboard
+	protected static class Application {
+		public static void main(String[] args) {
+			new SpringApplicationBuilder(Application.class).properties(
+					"spring.application.name=hystrix-dashboard", "server.contextPath=/context").run();
+		}
+	}
+
+}

spring-cloud-netflix-hystrix-dashboard/src/test/java/org/springframework/cloud/netflix/hystrix/dashboard/HystrixDashboardTests.java

@@ -0,0 +1,79 @@
+/*
+ * Copyright 2013-2014 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 org.springframework.cloud.netflix.hystrix.dashboard;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.boot.builder.SpringApplicationBuilder;
+import org.springframework.boot.test.IntegrationTest;
+import org.springframework.boot.test.SpringApplicationConfiguration;
+import org.springframework.boot.test.TestRestTemplate;
+import org.springframework.cloud.netflix.hystrix.dashboard.HystrixDashboardTests.Application;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.web.WebAppConfiguration;
+
+/**
+ * @author Dave Syer
+ *
+ */
+@RunWith(SpringJUnit4ClassRunner.class)
+@SpringApplicationConfiguration(classes = Application.class)
+@WebAppConfiguration
+@IntegrationTest({ "server.port=0", "spring.application.name=hystrix-dashboard" })
+public class HystrixDashboardTests {
+
+	@Value("${local.server.port}")
+	private int port = 0;
+
+	@Test
+	public void homePage() {
+		ResponseEntity<String> entity = new TestRestTemplate().getForEntity(
+				"http://localhost:" + port + "/hystrix", String.class);
+		assertEquals(HttpStatus.OK, entity.getStatusCode());
+	}
+
+	@Test
+	public void cssAvailable() {
+		ResponseEntity<String> entity = new TestRestTemplate().getForEntity(
+				"http://localhost:" + port + "/hystrix/css/global.css", String.class);
+		assertEquals(HttpStatus.OK, entity.getStatusCode());
+	}
+
+	@Test
+	public void monitorPage() {
+		ResponseEntity<String> entity = new TestRestTemplate().getForEntity(
+				"http://localhost:" + port + "/hystrix/monitor", String.class);
+		assertEquals(HttpStatus.OK, entity.getStatusCode());
+	}
+
+	@Configuration
+	@EnableAutoConfiguration
+	@EnableHystrixDashboard
+	protected static class Application {
+		public static void main(String[] args) {
+			new SpringApplicationBuilder(Application.class).properties(
+					"spring.application.name=hystrix-dashboard").run();
+		}
+	}
+
+}