GoogleCloudPlatform · tswast · Mar 17, 2016 · Mar 16, 2016
diff --git a/managed_vms/async-rest/pom.xml b/managed_vms/async-rest/pom.xml
@@ -1,50 +1,66 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2016 Google Inc. All Rights Reserved.
+
+ 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.
+-->
+<project>
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.appengine.demos</groupId>
   <artifactId>managed-vms-async-rest</artifactId>
   <version>1.0.0-SNAPSHOT</version>
   <packaging>war</packaging>
-  <name>Example Async Rest Webapp</name>
+
+  <parent>
+    <artifactId>doc-samples</artifactId>
+    <groupId>com.google.cloud</groupId>
+    <version>1.0.0</version>
+    <relativePath>../..</relativePath>
+  </parent>
+
   <properties>
-    <places.appkey>YOUR_PLACES_APP_KEY</places.appkey>
-    <jetty.version>9.3.7.v20160115</jetty.version>
     <docker.label.prefix>async-</docker.label.prefix>
+    <jetty.version>9.3.7.v20160115</jetty.version>
+    <maven.compiler.target>1.8</maven.compiler.target>
+    <maven.compiler.source>1.8</maven.compiler.source>
+    <places.appkey>YOUR_PLACES_APP_KEY</places.appkey>
   </properties>
   <build>
     <plugins>
-      <plugin>
-        <artifactId>maven-compiler-plugin</artifactId>
-        <version>3.3</version>
-        <configuration>
-          <source>1.8</source>
-          <target>1.8</target>
-         </configuration>
-        </plugin>
        <plugin>
         <groupId>org.eclipse.jetty</groupId>
         <artifactId>jetty-maven-plugin</artifactId>
         <version>${jetty.version}</version>
         <configuration>
          <systemProperties>
-          <systemProperty> 
+          <systemProperty>
             <name>com.google.appengine.demos.asyncrest.appKey</name>
             <value>${places.appkey}</value>
-          </systemProperty> 
+          </systemProperty>
          </systemProperties>
         </configuration>
        </plugin>
        <plugin>
          <groupId>com.google.appengine</groupId>
          <artifactId>gcloud-maven-plugin</artifactId>
-         <version>2.0.9.96.v20160203</version>
+         <version>2.0.9.95.v20160203</version>
          <configuration>
-	    <gcloud_directory>/usr/local/google-cloud-sdk</gcloud_directory>
-            <verbosity>debug</verbosity>
-            <log_level>debug</log_level>
-	    <non_docker_mode>false</non_docker_mode>
-	    <docker_build>remote</docker_build>
+           <verbosity>debug</verbosity>
+           <log_level>debug</log_level>
+           <non_docker_mode>false</non_docker_mode>
+            <docker_build>remote</docker_build>
         </configuration>
-      </plugin>      
+      </plugin>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-war-plugin</artifactId>

diff --git a/managed_vms/async-rest/src/main/java/com/google/appengine/demos/DumpServlet.java b/managed_vms/async-rest/src/main/java/com/google/appengine/demos/DumpServlet.java
@@ -1,3 +1,19 @@
+/*
+ * Copyright 2016 Google Inc. All Rights Reserved.
+ *
+ * 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 com.google.appengine.demos;
 
 import java.io.IOException;
@@ -13,9 +29,8 @@
 public class DumpServlet extends HttpServlet {
 
   @Override
-  protected void doGet(HttpServletRequest request,
-          HttpServletResponse response) throws ServletException,
-          IOException {
+  protected void doGet(HttpServletRequest request, HttpServletResponse response)
+      throws ServletException, IOException {
     response.setContentType("text/html");
     response.setStatus(HttpServletResponse.SC_OK);
 
@@ -28,19 +43,42 @@ protected void doGet(HttpServletRequest request,
     out.printf("getServletContextName=%s%n", getServletContext().getServletContextName());
     out.printf("virtualServerName=%s%n", getServletContext().getVirtualServerName());
     out.printf("contextPath=%s%n", getServletContext().getContextPath());
-    out.printf("version=%d.%d%n", getServletContext().getMajorVersion(), getServletContext().getMinorVersion());
-    out.printf("effectiveVersion=%d.%d%n", getServletContext().getEffectiveMajorVersion(), getServletContext().getEffectiveMinorVersion());
+    out.printf(
+        "version=%d.%d%n",
+        getServletContext().getMajorVersion(),
+        getServletContext().getMinorVersion());
+    out.printf(
+        "effectiveVersion=%d.%d%n",
+        getServletContext().getEffectiveMajorVersion(),
+        getServletContext().getEffectiveMinorVersion());
     out.println("</pre>");
     out.println("<h2>Request Fields:</h2>");
     out.println("<pre>");
-    out.printf("remoteHost/Addr:port=%s/%s:%d%n", request.getRemoteHost(), request.getRemoteAddr(), request.getRemotePort());
-    out.printf("localName/Addr:port=%s/%s:%d%n", request.getLocalName(), request.getLocalAddr(), request.getLocalPort());
-    out.printf("scheme=%s method=%s protocol=%s%n", request.getScheme(), request.getMethod(), request.getProtocol());
+    out.printf(
+        "remoteHost/Addr:port=%s/%s:%d%n",
+        request.getRemoteHost(),
+        request.getRemoteAddr(),
+        request.getRemotePort());
+    out.printf(
+        "localName/Addr:port=%s/%s:%d%n",
+        request.getLocalName(),
+        request.getLocalAddr(),
+        request.getLocalPort());
+    out.printf(
+        "scheme=%s method=%s protocol=%s%n",
+        request.getScheme(),
+        request.getMethod(),
+        request.getProtocol());
     out.printf("serverName:serverPort=%s:%d%n", request.getServerName(), request.getServerPort());
     out.printf("requestURI=%s%n", request.getRequestURI());
     out.printf("requestURL=%s%n", request.getRequestURL().toString());
-    out.printf("contextPath|servletPath|pathInfo=%s|%s|%s%n", request.getContextPath(), request.getServletPath(), request.getPathInfo());
-    out.printf("session/new=%s/%b%n", request.getSession(true).getId(), request.getSession().isNew());
+    out.printf(
+        "contextPath|servletPath|pathInfo=%s|%s|%s%n",
+        request.getContextPath(),
+        request.getServletPath(),
+        request.getPathInfo());
+    out.printf(
+        "session/new=%s/%b%n", request.getSession(true).getId(), request.getSession().isNew());
     out.println("</pre>");
     out.println("<h2>Request Headers:</h2>");
     out.println("<pre>");

diff --git a/...ms/async-rest/src/main/java/com/google/appengine/demos/asyncrest/AbstractRestServlet.java b/...ms/async-rest/src/main/java/com/google/appengine/demos/asyncrest/AbstractRestServlet.java
@@ -1,3 +1,19 @@
+/*
+ * Copyright 2016 Google Inc. All Rights Reserved.
+ *
+ * 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 com.google.appengine.demos.asyncrest;
 
 import java.io.IOException;
@@ -16,32 +32,31 @@
 import javax.servlet.http.HttpServletResponse;
 
 /**
- * AbstractRestServlet.
- *
+ * Abstract base class for REST servlets.
  */
 public class AbstractRestServlet extends HttpServlet {
 
-  protected final static int MAX_RESULTS = 5;
+  protected static final int MAX_RESULTS = 5;
 
-  protected final static String STYLE = "<style type='text/css'>"
+  protected static final String STYLE = "<style type='text/css'>"
           + "  img.thumb:hover {height:50px}"
           + "  img.thumb {vertical-align:text-top}"
           + "  span.red {color: #ff0000}"
           + "  span.green {color: #00ff00}"
           + "  iframe {border: 0px}" + "</style>";
 
-  protected final static String APPKEY = "com.google.appengine.demos.asyncrest.appKey";
-  protected final static String APPKEY_ENV = "PLACES_APPKEY";
-  protected final static String LOC_PARAM = "loc";
-  protected final static String ITEMS_PARAM = "items";
-  protected final static String LATITUDE_PARAM = "lat";
-  protected final static String LONGITUDE_PARAM = "long";
-  protected final static String RADIUS_PARAM = "radius";
+  protected static final String APPKEY = "com.google.appengine.demos.asyncrest.appKey";
+  protected static final String APPKEY_ENV = "PLACES_APPKEY";
+  protected static final String LOC_PARAM = "loc";
+  protected static final String ITEMS_PARAM = "items";
+  protected static final String LATITUDE_PARAM = "lat";
+  protected static final String LONGITUDE_PARAM = "long";
+  protected static final String RADIUS_PARAM = "radius";
   protected String key;
 
   @Override
   public void init(ServletConfig servletConfig) throws ServletException {
-    //first try the servlet context init-param
+    // First try the servlet context init-param.
     String source = "InitParameter";
     key = servletConfig.getInitParameter(APPKEY);
     if (key == null || key.startsWith("${")) {
@@ -60,18 +75,19 @@ public void init(ServletConfig servletConfig) throws ServletException {
     }
   }
 
-  public static String sanitize(String s) {
-    if (s == null) {
+  public static String sanitize(String str) {
+    if (str == null) {
       return null;
     }
-    return s.replace("<", "?").replace("&", "?").replace("\n", "?");
+    return str.replace("<", "?").replace("&", "?").replace("\n", "?");
   }
 
   protected String restQuery(String coordinates, String radius, String item) {
     try {
-      return "https://maps.googleapis.com/maps/api/place/nearbysearch/json?key=" + key + "&location="
-              + URLEncoder.encode(coordinates, "UTF-8") + "&types=" + URLEncoder.encode(item, "UTF-8")
-              + "&radius=" + URLEncoder.encode(radius, "UTF-8");
+      return "https://maps.googleapis.com/maps/api/place/nearbysearch/json?key=" + key
+          + "&location=" + URLEncoder.encode(coordinates, "UTF-8")
+          + "&types=" + URLEncoder.encode(item, "UTF-8")
+          + "&radius=" + URLEncoder.encode(radius, "UTF-8");
 
     } catch (Exception e) {
       throw new RuntimeException(e);
@@ -84,21 +100,22 @@ public String generateResults(Queue<Map<String, Object>> results) {
     Iterator<Map<String, Object>> itor = results.iterator();
 
     while (resultCount < MAX_RESULTS && itor.hasNext()) {
-      Map m = (Map) itor.next();
-      String name = (String) m.get("name");
-      Object[] photos = (Object[]) m.get("photos");
+      Map map = (Map) itor.next();
+      String name = (String) map.get("name");
+      Object[] photos = (Object[]) map.get("photos");
       if (photos != null && photos.length > 0) {
         resultCount++;
-        thumbs.append("<img class='thumb' border='1px' height='40px'" + " src='"
-                + getPhotoURL((String) (((Map) photos[0]).get("photo_reference"))) + "'" + " title='" + name
-                + "'" + "/>");
+        thumbs.append(
+            "<img class='thumb' border='1px' height='40px' "
+                + "src='" + getPhotoUrl((String) (((Map) photos[0]).get("photo_reference"))) + "' "
+                + "title='" + name + "' />");
         thumbs.append("</a>&nbsp;");
       }
     }
     return thumbs.toString();
   }
 
-  public String getPhotoURL(String photoref) {
+  public String getPhotoUrl(String photoref) {
     return "https://maps.googleapis.com/maps/api/place/photo?key=" + key + "&photoreference=" + photoref
             + "&maxheight=40";
   }
@@ -109,11 +126,11 @@ protected String ms(long nano) {
   }
 
   protected int width(long nano) {
-    int w = (int) ((nano + 999999L) / 5000000L);
-    if (w == 0) {
-      w = 2;
+    int width = (int) ((nano + 999999L) / 5000000L);
+    if (width == 0) {
+      width = 2;
     }
-    return w;
+    return width;
   }
 
   @Override