added context path

src/main/java/spark/Request.java

@@ -177,6 +177,13 @@ public String servletPath() {
         return servletRequest.getServletPath();
     }
 
+    /**
+     * Returns the context path
+     */
+    public String contextPath() {
+        return servletRequest.getContextPath();
+    }
+
     /**
      * Returns the URL string
      */

src/main/java/spark/webserver/RequestWrapper.java

@@ -57,6 +57,11 @@ public String pathInfo() {
     public String servletPath() {
         return delegate.servletPath();
     }
+
+    @Override
+    public String contextPath() {
+        return delegate.contextPath();
+    }
 
     @Override
     public String contentType() {

src/test/java/spark/RequestTest.java

@@ -34,7 +34,8 @@
 public class RequestTest {
 
     private static final String THE_SERVLET_PATH = "/the/servlet/path";
-
+    private static final String THE_CONTEXT_PATH = "/the/context/path";
+
     RouteMatch match =  new RouteMatch(HttpMethod.get,null,"/hi","/hi", "text/html");
 
     @Test
@@ -69,6 +70,18 @@ public String getServletPath() {
         assertEquals("Should have delegated getting the servlet path", THE_SERVLET_PATH, request.servletPath());
     }
 
+    @Test
+    public void shouldBeAbleToGetTheContextPath() {
+        HttpServletRequest servletRequest = new MockedHttpServletRequest(new HashMap<String, String[]>()) {
+            @Override
+            public String getContextPath() {
+                return THE_CONTEXT_PATH;
+            }
+        };
+        Request request = new Request(match, servletRequest);
+        assertEquals("Should have delegated getting the context path", THE_CONTEXT_PATH, request.contextPath());
+    }
+
     public static class MockedHttpServletRequest implements HttpServletRequest {
         private Map<String, String[]> params;