added play-framework project (#678)

* made changes to java reflection

* removed redundant method makeSound in Animal abstract class

* added project for play-framework article

play-framework/student-api/.gitignore

@@ -0,0 +1,8 @@
+logs
+target
+/.idea
+/.idea_modules
+/.classpath
+/.project
+/.settings
+/RUNNING_PID

play-framework/student-api/LICENSE

@@ -0,0 +1,8 @@
+This software is licensed under the Apache 2 license, quoted below.
+
+Licensed under the Apache License, Version 2.0 (the "License"); you may not use this project 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.

play-framework/student-api/README

@@ -0,0 +1,49 @@
+This is your new Play application
+=================================
+
+This file will be packaged with your application when using `activator dist`.
+
+There are several demonstration files available in this template.
+
+Controllers
+===========
+
+- HomeController.java:
+
+  Shows how to handle simple HTTP requests.
+
+- AsyncController.java:
+
+  Shows how to do asynchronous programming when handling a request.
+
+- CountController.java:
+
+  Shows how to inject a component into a controller and use the component when
+  handling requests.
+
+Components
+==========
+
+- Module.java:
+
+  Shows how to use Guice to bind all the components needed by your application.
+
+- Counter.java:
+
+  An example of a component that contains state, in this case a simple counter.
+
+- ApplicationTimer.java:
+
+  An example of a component that starts when the application starts and stops
+  when the application stops.
+
+Filters
+=======
+
+- Filters.java:
+
+  Creates the list of HTTP filters used by your application.
+
+- ExampleFilter.java
+
+  A simple filter that adds a header to every response.

play-framework/student-api/app/Filters.java

@@ -0,0 +1,46 @@
+import javax.inject.*;
+import play.*;
+import play.mvc.EssentialFilter;
+import play.http.HttpFilters;
+import play.mvc.*;
+
+import filters.ExampleFilter;
+
+/**
+ * This class configures filters that run on every request. This
+ * class is queried by Play to get a list of filters.
+ *
+ * Play will automatically use filters from any class called
+ * <code>Filters</code> that is placed the root package. You can load filters
+ * from a different class by adding a `play.http.filters` setting to
+ * the <code>application.conf</code> configuration file.
+ */
+@Singleton
+public class Filters implements HttpFilters {
+
+    private final Environment env;
+    private final EssentialFilter exampleFilter;
+
+    /**
+     * @param env Basic environment settings for the current application.
+     * @param exampleFilter A demonstration filter that adds a header to
+     */
+    @Inject
+    public Filters(Environment env, ExampleFilter exampleFilter) {
+        this.env = env;
+        this.exampleFilter = exampleFilter;
+    }
+
+    @Override
+    public EssentialFilter[] filters() {
+      // Use the example filter if we're running development mode. If
+      // we're running in production or test mode then don't use any
+      // filters at all.
+      if (env.mode().equals(Mode.DEV)) {
+          return new EssentialFilter[] { exampleFilter };
+      } else {
+         return new EssentialFilter[] {};
+      }
+    }
+
+}

play-framework/student-api/app/Module.java

@@ -0,0 +1,31 @@
+import com.google.inject.AbstractModule;
+import java.time.Clock;
+
+import services.ApplicationTimer;
+import services.AtomicCounter;
+import services.Counter;
+
+/**
+ * This class is a Guice module that tells Guice how to bind several
+ * different types. This Guice module is created when the Play
+ * application starts.
+ *
+ * Play will automatically use any class called `Module` that is in
+ * the root package. You can create modules in other locations by
+ * adding `play.modules.enabled` settings to the `application.conf`
+ * configuration file.
+ */
+public class Module extends AbstractModule {
+
+    @Override
+    public void configure() {
+        // Use the system clock as the default implementation of Clock
+        bind(Clock.class).toInstance(Clock.systemDefaultZone());
+        // Ask Guice to create an instance of ApplicationTimer when the
+        // application starts.
+        bind(ApplicationTimer.class).asEagerSingleton();
+        // Set AtomicCounter as the implementation for Counter.
+        bind(Counter.class).to(AtomicCounter.class);
+    }
+
+}

play-framework/student-api/app/controllers/AsyncController.java

@@ -0,0 +1,60 @@
+package controllers;
+
+import akka.actor.ActorSystem;
+import javax.inject.*;
+import play.*;
+import play.mvc.*;
+import java.util.concurrent.Executor;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.CompletionStage;
+import java.util.concurrent.TimeUnit;
+import scala.concurrent.duration.Duration;
+import scala.concurrent.ExecutionContextExecutor;
+
+/**
+ * This controller contains an action that demonstrates how to write
+ * simple asynchronous code in a controller. It uses a timer to
+ * asynchronously delay sending a response for 1 second.
+ *
+ * @param actorSystem We need the {@link ActorSystem}'s
+ * {@link Scheduler} to run code after a delay.
+ * @param exec We need a Java {@link Executor} to apply the result
+ * of the {@link CompletableFuture} and a Scala
+ * {@link ExecutionContext} so we can use the Akka {@link Scheduler}.
+ * An {@link ExecutionContextExecutor} implements both interfaces.
+ */
+@Singleton
+public class AsyncController extends Controller {
+
+    private final ActorSystem actorSystem;
+    private final ExecutionContextExecutor exec;
+
+    @Inject
+    public AsyncController(ActorSystem actorSystem, ExecutionContextExecutor exec) {
+      this.actorSystem = actorSystem;
+      this.exec = exec;
+    }
+
+    /**
+     * An action that returns a plain text message after a delay
+     * of 1 second.
+     *
+     * The configuration in the <code>routes</code> file means that this method
+     * will be called when the application receives a <code>GET</code> request with
+     * a path of <code>/message</code>.
+     */
+    public CompletionStage<Result> message() {
+        return getFutureMessage(1, TimeUnit.SECONDS).thenApplyAsync(Results::ok, exec);
+    }
+
+    private CompletionStage<String> getFutureMessage(long time, TimeUnit timeUnit) {
+        CompletableFuture<String> future = new CompletableFuture<>();
+        actorSystem.scheduler().scheduleOnce(
+            Duration.create(time, timeUnit),
+            () -> future.complete("Hi!"),
+            exec
+        );
+        return future;
+    }
+
+}

play-framework/student-api/app/controllers/CountController.java

@@ -0,0 +1,35 @@
+package controllers;
+
+import javax.inject.*;
+import play.*;
+import play.mvc.*;
+
+import services.Counter;
+
+/**
+ * This controller demonstrates how to use dependency injection to
+ * bind a component into a controller class. The class contains an
+ * action that shows an incrementing count to users. The {@link Counter}
+ * object is injected by the Guice dependency injection system.
+ */
+@Singleton
+public class CountController extends Controller {
+
+    private final Counter counter;
+
+    @Inject
+    public CountController(Counter counter) {
+       this.counter = counter;
+    }
+
+    /**
+     * An action that responds with the {@link Counter}'s current
+     * count. The result is plain text. This action is mapped to
+     * <code>GET</code> requests with a path of <code>/count</code>
+     * requests by an entry in the <code>routes</code> config file.
+     */
+    public Result count() {
+        return ok(Integer.toString(counter.nextCount()));
+    }
+
+}

play-framework/student-api/app/controllers/HomeController.java

@@ -0,0 +1,23 @@
+package controllers;
+
+import play.mvc.*;
+
+import views.html.*;
+
+/**
+ * This controller contains an action to handle HTTP requests
+ * to the application's home page.
+ */
+public class HomeController extends Controller {
+
+    /**
+     * An action that renders an HTML page with a welcome message.
+     * The configuration in the <code>routes</code> file means that
+     * this method will be called when the application receives a
+     * <code>GET</code> request with a path of <code>/</code>.
+     */
+    public Result index() {
+        return ok(index.render("Your new application is ready."));
+    }
+
+}

play-framework/student-api/app/controllers/StudentController.java

@@ -0,0 +1,56 @@
+package controllers;
+import models.*;
+import util.*;
+import play.mvc.*;
+import play.libs.Json;
+import play.libs.Json.*;
+import com.fasterxml.jackson.databind.JsonNode;           
+import com.fasterxml.jackson.databind.ObjectMapper;
+import java.util.List;
+
+public class StudentController extends Controller {
+    public Result create() {
+		JsonNode json = request().body().asJson();
+		if(json == null)
+			return badRequest(Util.createResponse("Expecting Json data",false));
+		Student student=StudentStore.getInstance().addStudent((Student)Json.fromJson(json,Student.class));
+		JsonNode jsonObject=Json.toJson(student);
+        return created(Util.createResponse(jsonObject,true));
+    }
+	public Result update() {
+        JsonNode json = request().body().asJson();
+		if(json == null)
+			return badRequest(Util.createResponse("Expecting Json data",false));
+		Student student=StudentStore.getInstance().updateStudent((Student)Json.fromJson(json,Student.class));
+		if(student==null){
+		return notFound(Util.createResponse("Student not found",false));
+		}
+
+		JsonNode jsonObject=Json.toJson(student);
+        return ok(Util.createResponse(jsonObject,true));
+    }
+	public Result retrieve(int id) {
+		Student student=StudentStore.getInstance().getStudent(id);
+		if(student==null){
+		return notFound(Util.createResponse("Student with id:"+id+" not found",false));
+		}
+		JsonNode jsonObjects=Json.toJson(student);
+        return ok(Util.createResponse(jsonObjects,true));
+    }
+	public Result listStudents() {
+		List<Student> result=StudentStore.getInstance().getAllStudents();
+		    	ObjectMapper mapper = new ObjectMapper();
+
+		JsonNode jsonData=mapper.convertValue(result, JsonNode.class);
+        return ok(Util.createResponse(jsonData,true));
+
+    }
+	public Result delete(int id) {
+		boolean status=StudentStore.getInstance().deleteStudent(id);
+		if(!status){
+		return notFound(Util.createResponse("Student with id:"+id+" not found",false));
+		}
+        return ok(Util.createResponse("Student with id:"+id+" deleted",true));
+    }
+
+}

play-framework/student-api/app/filters/ExampleFilter.java

@@ -0,0 +1,45 @@
+package filters;
+
+import akka.stream.Materializer;
+import java.util.concurrent.CompletionStage;
+import java.util.concurrent.Executor;
+import java.util.function.Function;
+import javax.inject.*;
+import play.mvc.*;
+import play.mvc.Http.RequestHeader;
+
+
+/**
+ * This is a simple filter that adds a header to all requests. It's
+ * added to the application's list of filters by the
+ * {@link Filters} class.
+ */
+@Singleton
+public class ExampleFilter extends Filter {
+
+    private final Executor exec;
+
+    /**
+     * @param mat This object is needed to handle streaming of requests
+     * and responses.
+     * @param exec This class is needed to execute code asynchronously.
+     * It is used below by the <code>thenAsyncApply</code> method.
+     */
+    @Inject
+    public ExampleFilter(Materializer mat, Executor exec) {
+        super(mat);
+        this.exec = exec;
+    }
+
+    @Override
+    public CompletionStage<Result> apply(
+        Function<RequestHeader, CompletionStage<Result>> next,
+        RequestHeader requestHeader) {
+
+        return next.apply(requestHeader).thenApplyAsync(
+            result -> result.withHeader("X-ExampleFilter", "foo"),
+            exec
+        );
+    }
+
+}

play-framework/student-api/app/models/Student.java

@@ -0,0 +1,47 @@
+package models;
+public class Student {
+    private String firstName;
+    private String lastName;
+    private int age;
+    private int id;
+	public Student(){}
+    public Student(String firstName, String lastName, int age) {
+        super();
+        this.firstName = firstName;
+        this.lastName = lastName;
+        this.age = age;
+    }
+
+    public String getFirstName() {
+        return firstName;
+    }
+
+    public void setFirstName(String firstName) {
+        this.firstName = firstName;
+    }
+
+    public String getLastName() {
+        return lastName;
+    }
+
+    public void setLastName(String lastName) {
+        this.lastName = lastName;
+    }
+
+    public int getAge() {
+        return age;
+    }
+
+    public void setAge(int age) {
+        this.age = age;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+}

play-framework/student-api/app/models/StudentStore.java

@@ -0,0 +1,52 @@
+package models;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+public class StudentStore {
+    private static StudentStore instance;
+    private Map<Integer, Student> students = new HashMap<>();
+
+    public static StudentStore getInstance() {
+        if (instance == null)
+            instance = new StudentStore();
+        return instance;
+    }
+
+    public Student addStudent(Student student) {
+        int id = students.size() + 1;
+        student.setId(id);
+        students.put(id, student);
+        return student;
+    }
+
+    public Student getStudent(int id) {
+        if (students.containsKey(id))
+            return students.get(id);
+        return null;
+    }
+
+    public List<Student> getAllStudents() {
+        return new ArrayList<Student>(students.values());
+    }
+
+    public Student updateStudent(Student student) {
+		int id=student.getId();
+        if (students.containsKey(id)) {
+            student.setId(id);
+            students.put(id, student);
+            return student;
+        }
+        return null;
+    }
+
+    public boolean deleteStudent(int id) {
+
+        if (!students.containsKey(id))
+            return false;
+        students.remove(id);
+        return true;
+
+    }
+}

play-framework/student-api/app/services/ApplicationTimer.java

@@ -0,0 +1,50 @@
+package services;
+
+import java.time.Clock;
+import java.time.Instant;
+import java.util.concurrent.CompletableFuture;
+import javax.inject.*;
+import play.Logger;
+import play.inject.ApplicationLifecycle;
+
+/**
+ * This class demonstrates how to run code when the
+ * application starts and stops. It starts a timer when the
+ * application starts. When the application stops it prints out how
+ * long the application was running for.
+ *
+ * This class is registered for Guice dependency injection in the
+ * {@link Module} class. We want the class to start when the application
+ * starts, so it is registered as an "eager singleton". See the code
+ * in the {@link Module} class to see how this happens.
+ *
+ * This class needs to run code when the server stops. It uses the
+ * application's {@link ApplicationLifecycle} to register a stop hook.
+ */
+@Singleton
+public class ApplicationTimer {
+
+    private final Clock clock;
+    private final ApplicationLifecycle appLifecycle;
+    private final Instant start;
+
+    @Inject
+    public ApplicationTimer(Clock clock, ApplicationLifecycle appLifecycle) {
+        this.clock = clock;
+        this.appLifecycle = appLifecycle;
+        // This code is called when the application starts.
+        start = clock.instant();
+        Logger.info("ApplicationTimer demo: Starting application at " + start);
+
+        // When the application starts, register a stop hook with the
+        // ApplicationLifecycle object. The code inside the stop hook will
+        // be run when the application stops.
+        appLifecycle.addStopHook(() -> {
+            Instant stop = clock.instant();
+            Long runningTime = stop.getEpochSecond() - start.getEpochSecond();
+            Logger.info("ApplicationTimer demo: Stopping application at " + clock.instant() + " after " + runningTime + "s.");
+            return CompletableFuture.completedFuture(null);
+        });
+    }
+
+}

play-framework/student-api/app/services/AtomicCounter.java

@@ -0,0 +1,26 @@
+package services;
+
+import java.util.concurrent.atomic.AtomicInteger;
+import javax.inject.*;
+
+/**
+ * This class is a concrete implementation of the {@link Counter} trait.
+ * It is configured for Guice dependency injection in the {@link Module}
+ * class.
+ *
+ * This class has a {@link Singleton} annotation because we need to make
+ * sure we only use one counter per application. Without this
+ * annotation we would get a new instance every time a {@link Counter} is
+ * injected.
+ */
+@Singleton
+public class AtomicCounter implements Counter {
+
+    private final AtomicInteger atomicCounter = new AtomicInteger();
+
+    @Override
+    public int nextCount() {
+       return atomicCounter.getAndIncrement();
+    }
+
+}

play-framework/student-api/app/services/Counter.java

@@ -0,0 +1,13 @@
+package services;
+
+/**
+ * This interface demonstrates how to create a component that is injected
+ * into a controller. The interface represents a counter that returns a
+ * incremented number each time it is called.
+ *
+ * The {@link Modules} class binds this interface to the
+ * {@link AtomicCounter} implementation.
+ */
+public interface Counter {
+    int nextCount();
+}

play-framework/student-api/app/util/Util.java

@@ -0,0 +1,17 @@
+package util;
+import com.fasterxml.jackson.databind.node.ObjectNode;           
+import play.libs.Json;
+import play.libs.Json.*;
+import com.fasterxml.jackson.databind.JsonNode;           
+
+public class Util{
+	public static ObjectNode createResponse(Object response,boolean ok){
+		ObjectNode result = Json.newObject();
+		result.put("isSuccessfull", ok);
+		if(response instanceof String)
+        result.put("body",(String)response);
+		else result.put("body",(JsonNode)response);
+
+		return result;
+	}
+}

play-framework/student-api/app/views/index.scala.html

@@ -0,0 +1,20 @@
+@*
+ * This template takes a single argument, a String containing a
+ * message to display.
+ *@
+@(message: String)
+
+@*
+ * Call the `main` template with two arguments. The first
+ * argument is a `String` with the title of the page, the second
+ * argument is an `Html` object containing the body of the page.
+ *@
+@main("Welcome to Play") {
+
+    @*
+     * Get an `Html` object by calling the built-in Play welcome
+     * template and passing a `String` message.
+     *@
+    @play20.welcome(message, style = "Java")
+
+}

play-framework/student-api/app/views/main.scala.html

@@ -0,0 +1,23 @@
+@*
+ * This template is called from the `index` template. This template
+ * handles the rendering of the page header and body tags. It takes
+ * two arguments, a `String` for the title of the page and an `Html`
+ * object to insert into the body of the page.
+ *@
+@(title: String)(content: Html)
+
+<!DOCTYPE html>
+<html lang="en">
+    <head>
+        @* Here's where we render the page title `String`. *@
+        <title>@title</title>
+        <link rel="stylesheet" media="screen" href="@routes.Assets.versioned("stylesheets/main.css")">
+        <link rel="shortcut icon" type="image/png" href="@routes.Assets.versioned("images/favicon.png")">
+        <script src="@routes.Assets.versioned("javascripts/hello.js")" type="text/javascript"></script>
+    </head>
+    <body>
+        @* And here's where we render the `Html` object containing
+         * the page content. *@
+        @content
+    </body>
+</html>

play-framework/student-api/bin/activator

@@ -0,0 +1,397 @@
+#!/usr/bin/env bash
+
+###  ------------------------------- ###
+###  Helper methods for BASH scripts ###
+###  ------------------------------- ###
+
+realpath () {
+(
+  TARGET_FILE="$1"
+  FIX_CYGPATH="$2"
+
+  cd "$(dirname "$TARGET_FILE")"
+  TARGET_FILE=$(basename "$TARGET_FILE")
+
+  COUNT=0
+  while [ -L "$TARGET_FILE" -a $COUNT -lt 100 ]
+  do
+      TARGET_FILE=$(readlink "$TARGET_FILE")
+      cd "$(dirname "$TARGET_FILE")"
+      TARGET_FILE=$(basename "$TARGET_FILE")
+      COUNT=$(($COUNT + 1))
+  done
+
+  # make sure we grab the actual windows path, instead of cygwin's path.
+  if [[ "x$FIX_CYGPATH" != "x" ]]; then
+    echo "$(cygwinpath "$(pwd -P)/$TARGET_FILE")"
+  else
+    echo "$(pwd -P)/$TARGET_FILE"
+  fi
+)
+}
+
+
+# Uses uname to detect if we're in the odd cygwin environment.
+is_cygwin() {
+  local os=$(uname -s)
+  case "$os" in
+    CYGWIN*) return 0 ;;
+    *)  return 1 ;;
+  esac
+}
+
+# TODO - Use nicer bash-isms here.
+CYGWIN_FLAG=$(if is_cygwin; then echo true; else echo false; fi)
+
+
+# This can fix cygwin style /cygdrive paths so we get the
+# windows style paths.
+cygwinpath() {
+  local file="$1"
+  if [[ "$CYGWIN_FLAG" == "true" ]]; then
+    echo $(cygpath -w $file)
+  else
+    echo $file
+  fi
+}
+
+# Make something URI friendly
+make_url() {
+  url="$1"
+  local nospaces=${url// /%20}
+  if is_cygwin; then
+    echo "/${nospaces//\\//}"
+  else
+    echo "$nospaces"
+  fi
+}
+
+declare -a residual_args
+declare -a java_args
+declare -a scalac_args
+declare -a sbt_commands
+declare java_cmd=java
+declare java_version
+declare -r real_script_path="$(realpath "$0")"
+declare -r sbt_home="$(realpath "$(dirname "$(dirname "$real_script_path")")")"
+declare -r sbt_bin_dir="$(dirname "$real_script_path")"
+declare -r app_version="1.3.10"
+
+declare -r script_name=activator
+declare -r java_opts=( "${ACTIVATOR_OPTS[@]}" "${SBT_OPTS[@]}" "${JAVA_OPTS[@]}" "${java_opts[@]}" )
+userhome="$HOME"
+if is_cygwin; then
+  # cygwin sets home to something f-d up, set to real windows homedir
+  userhome="$USERPROFILE"
+fi
+declare -r activator_user_home_dir="${userhome}/.activator"
+declare -r java_opts_config_home="${activator_user_home_dir}/activatorconfig.txt"
+declare -r java_opts_config_version="${activator_user_home_dir}/${app_version}/activatorconfig.txt"
+
+echoerr () {
+  echo 1>&2 "$@"
+}
+vlog () {
+  [[ $verbose || $debug ]] && echoerr "$@"
+}
+dlog () {
+  [[ $debug ]] && echoerr "$@"
+}
+
+jar_file () {
+  echo "$(cygwinpath "${sbt_home}/libexec/activator-launch-${app_version}.jar")"
+}
+
+acquire_sbt_jar () {
+  sbt_jar="$(jar_file)"
+
+  if [[ ! -f "$sbt_jar" ]]; then
+    echoerr "Could not find launcher jar: $sbt_jar"
+    exit 2
+  fi
+}
+
+execRunner () {
+  # print the arguments one to a line, quoting any containing spaces
+  [[ $verbose || $debug ]] && echo "# Executing command line:" && {
+    for arg; do
+      if printf "%s\n" "$arg" | grep -q ' '; then
+        printf "\"%s\"\n" "$arg"
+      else
+        printf "%s\n" "$arg"
+      fi
+    done
+    echo ""
+  }
+
+  # THis used to be exec, but we loose the ability to re-hook stty then
+  # for cygwin...  Maybe we should flag the feature here...
+  "$@"
+}
+
+addJava () {
+  dlog "[addJava] arg = '$1'"
+  java_args=( "${java_args[@]}" "$1" )
+}
+addSbt () {
+  dlog "[addSbt] arg = '$1'"
+  sbt_commands=( "${sbt_commands[@]}" "$1" )
+}
+addResidual () {
+  dlog "[residual] arg = '$1'"
+  residual_args=( "${residual_args[@]}" "$1" )
+}
+addDebugger () {
+  addJava "-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=$1"
+}
+
+get_mem_opts () {
+  # if we detect any of these settings in ${JAVA_OPTS} we need to NOT output our settings.
+  # The reason is the Xms/Xmx, if they don't line up, cause errors.
+  if [[ "${JAVA_OPTS}" == *-Xmx* ]] || [[ "${JAVA_OPTS}" == *-Xms* ]] || [[ "${JAVA_OPTS}" == *-XX:MaxPermSize* ]] || [[ "${JAVA_OPTS}" == *-XX:MaxMetaspaceSize* ]] || [[ "${JAVA_OPTS}" == *-XX:ReservedCodeCacheSize* ]]; then
+     echo ""
+  else
+    # a ham-fisted attempt to move some memory settings in concert
+    # so they need not be messed around with individually.
+    local mem=${1:-1024}
+    local codecache=$(( $mem / 8 ))
+    (( $codecache > 128 )) || codecache=128
+    (( $codecache < 512 )) || codecache=512
+    local class_metadata_size=$(( $codecache * 2 ))
+    local class_metadata_opt=$([[ "$java_version" < "1.8" ]] && echo "MaxPermSize" || echo "MaxMetaspaceSize")
+
+    echo "-Xms${mem}m -Xmx${mem}m -XX:ReservedCodeCacheSize=${codecache}m -XX:${class_metadata_opt}=${class_metadata_size}m"
+  fi
+}
+
+require_arg () {
+  local type="$1"
+  local opt="$2"
+  local arg="$3"
+  if [[ -z "$arg" ]] || [[ "${arg:0:1}" == "-" ]]; then
+    echo "$opt requires <$type> argument"
+    exit 1
+  fi
+}
+
+is_function_defined() {
+  declare -f "$1" > /dev/null
+}
+
+# If we're *not* running in a terminal, and we don't have any arguments, then we need to add the 'ui' parameter
+detect_terminal_for_ui() {
+  [[ ! -t 0 ]] && [[ "${#residual_args}" == "0" ]] && {
+    addResidual "ui"
+  }
+  # SPECIAL TEST FOR MAC
+  [[ "$(uname)" == "Darwin" ]] && [[ "$HOME" == "$PWD" ]] && [[ "${#residual_args}" == "0" ]] && {
+    echo "Detected MAC OSX launched script...."
+    echo "Swapping to UI"
+    addResidual "ui"
+  }
+}
+
+process_args () {
+  while [[ $# -gt 0 ]]; do
+    case "$1" in
+       -h|-help) usage; exit 1 ;;
+    -v|-verbose) verbose=1 && shift ;;
+      -d|-debug) debug=1 && shift ;;
+
+           -ivy) require_arg path "$1" "$2" && addJava "-Dsbt.ivy.home=$2" && shift 2 ;;
+           -mem) require_arg integer "$1" "$2" && sbt_mem="$2" && shift 2 ;;
+     -jvm-debug) require_arg port "$1" "$2" && addDebugger $2 && shift 2 ;;
+         -batch) exec </dev/null && shift ;;
+
+       -sbt-jar) require_arg path "$1" "$2" && sbt_jar="$2" && shift 2 ;;
+   -sbt-version) require_arg version "$1" "$2" && sbt_version="$2" && shift 2 ;;
+     -java-home) require_arg path "$1" "$2" && java_cmd="$2/bin/java" && shift 2 ;;
+
+            -D*) addJava "$1" && shift ;;
+            -J*) addJava "${1:2}" && shift ;;
+              *) addResidual "$1" && shift ;;
+    esac
+  done
+
+  is_function_defined process_my_args && {
+    myargs=("${residual_args[@]}")
+    residual_args=()
+    process_my_args "${myargs[@]}"
+  }
+
+  java_version=$("$java_cmd" -Xmx512M -version 2>&1 | awk -F '"' '/version/ {print $2}')
+  vlog "[process_args] java_version = '$java_version'"
+}
+
+# Detect that we have java installed.
+checkJava() {
+  local required_version="$1"
+  # Now check to see if it's a good enough version
+  if [[ "$java_version" == "" ]]; then
+    echo
+    echo No java installations was detected.
+    echo Please go to http://www.java.com/getjava/ and download
+    echo
+    exit 1
+  elif [[ ! "$java_version" > "$required_version" ]]; then
+    echo
+    echo The java installation you have is not up to date
+    echo $script_name requires at least version $required_version+, you have
+    echo version $java_version
+    echo
+    echo Please go to http://www.java.com/getjava/ and download
+    echo a valid Java Runtime and install before running $script_name.
+    echo
+    exit 1
+  fi
+}
+
+
+run() {
+  # no jar? download it.
+  [[ -f "$sbt_jar" ]] || acquire_sbt_jar "$sbt_version" || {
+    # still no jar? uh-oh.
+    echo "Download failed. Obtain the sbt-launch.jar manually and place it at $sbt_jar"
+    exit 1
+  }
+
+  # process the combined args, then reset "$@" to the residuals
+  process_args "$@"
+  detect_terminal_for_ui
+  set -- "${residual_args[@]}"
+  argumentCount=$#
+
+  # TODO - java check should be configurable...
+  checkJava "1.6"
+
+  #If we're in cygwin, we should use the windows config, and terminal hacks
+  if [[ "$CYGWIN_FLAG" == "true" ]]; then
+    stty -icanon min 1 -echo > /dev/null 2>&1
+    addJava "-Djline.terminal=jline.UnixTerminal"
+    addJava "-Dsbt.cygwin=true"
+  fi
+
+  # run sbt
+  execRunner "$java_cmd" \
+    "-Dactivator.home=$(make_url "$sbt_home")" \
+    ${SBT_OPTS:-$default_sbt_opts} \
+    $(get_mem_opts $sbt_mem) \
+      ${JAVA_OPTS} \
+    ${java_args[@]} \
+    -jar "$sbt_jar" \
+    "${sbt_commands[@]}" \
+    "${residual_args[@]}"
+
+  exit_code=$?
+
+  # Clean up the terminal from cygwin hacks.
+  if [[ "$CYGWIN_FLAG" == "true" ]]; then
+    stty icanon echo > /dev/null 2>&1
+  fi
+  exit $exit_code
+}
+
+
+declare -r noshare_opts="-Dsbt.global.base=project/.sbtboot -Dsbt.boot.directory=project/.boot -Dsbt.ivy.home=project/.ivy"
+declare -r sbt_opts_file=".sbtopts"
+declare -r etc_sbt_opts_file="${sbt_home}/conf/sbtopts"
+declare -r win_sbt_opts_file="${sbt_home}/conf/sbtconfig.txt"
+
+usage() {
+ cat <<EOM
+Usage: $script_name [options]
+
+  Command:
+  ui                 Start the Activator UI
+  new [name] [template-id]  Create a new project with [name] using template [template-id]
+  list-templates     Print all available template names
+
+  Options:
+  -h | -help         print this message
+  -v | -verbose      this runner is chattier
+  -d | -debug        set sbt log level to debug
+  -no-colors         disable ANSI color codes
+  -sbt-create        start sbt even if current directory contains no sbt project
+  -sbt-dir   <path>  path to global settings/plugins directory (default: ~/.sbt)
+  -sbt-boot  <path>  path to shared boot directory (default: ~/.sbt/boot in 0.11 series)
+  -ivy       <path>  path to local Ivy repository (default: ~/.ivy2)
+  -mem    <integer>  set memory options (default: $sbt_mem, which is $(get_mem_opts $sbt_mem))
+  -no-share          use all local caches; no sharing
+  -no-global         uses global caches, but does not use global ~/.sbt directory.
+  -jvm-debug <port>  Turn on JVM debugging, open at the given port.
+  -batch             Disable interactive mode
+
+  # sbt version (default: from project/build.properties if present, else latest release)
+  -sbt-version  <version>   use the specified version of sbt
+  -sbt-jar      <path>      use the specified jar as the sbt launcher
+  -sbt-rc                   use an RC version of sbt
+  -sbt-snapshot             use a snapshot version of sbt
+
+  # java version (default: java from PATH, currently $(java -version 2>&1 | grep version))
+  -java-home <path>         alternate JAVA_HOME
+
+  # jvm options and output control
+  JAVA_OPTS          environment variable, if unset uses "$java_opts"
+  SBT_OPTS           environment variable, if unset uses "$default_sbt_opts"
+  ACTIVATOR_OPTS     Environment variable, if unset uses ""
+  .sbtopts           if this file exists in the current directory, it is
+                     prepended to the runner args
+  /etc/sbt/sbtopts   if this file exists, it is prepended to the runner args
+  -Dkey=val          pass -Dkey=val directly to the java runtime
+  -J-X               pass option -X directly to the java runtime
+                     (-J is stripped)
+  -S-X               add -X to sbt's scalacOptions (-S is stripped)
+
+In the case of duplicated or conflicting options, the order above
+shows precedence: JAVA_OPTS lowest, command line options highest.
+EOM
+}
+
+
+
+process_my_args () {
+  while [[ $# -gt 0 ]]; do
+    case "$1" in
+     -no-colors) addJava "-Dsbt.log.noformat=true" && shift ;;
+      -no-share) addJava "$noshare_opts" && shift ;;
+     -no-global) addJava "-Dsbt.global.base=$(pwd)/project/.sbtboot" && shift ;;
+      -sbt-boot) require_arg path "$1" "$2" && addJava "-Dsbt.boot.directory=$2" && shift 2 ;;
+       -sbt-dir) require_arg path "$1" "$2" && addJava "-Dsbt.global.base=$2" && shift 2 ;;
+     -debug-inc) addJava "-Dxsbt.inc.debug=true" && shift ;;
+         -batch) exec </dev/null && shift ;;
+
+    -sbt-create) sbt_create=true && shift ;;
+
+              *) addResidual "$1" && shift ;;
+    esac
+  done
+
+  # Now, ensure sbt version is used.
+  [[ "${sbt_version}XXX" != "XXX" ]] && addJava "-Dsbt.version=$sbt_version"
+}
+
+loadConfigFile() {
+  cat "$1" | sed '/^\#/d' | while read line; do
+    eval echo $line
+  done
+}
+
+# TODO - Pull in config based on operating system... (MSYS + cygwin should pull in txt file).
+# Here we pull in the global settings configuration.
+[[ -f "$etc_sbt_opts_file" ]] && set -- $(loadConfigFile "$etc_sbt_opts_file") "$@"
+# -- Windows behavior stub'd
+# JAVA_OPTS=$(cat "$WDIR/sbtconfig.txt" | sed -e 's/\r//g' -e 's/^#.*$//g' | sed ':a;N;$!ba;s/\n/ /g')
+
+
+#  Pull in the project-level config file, if it exists.
+[[ -f "$sbt_opts_file" ]] && set -- $(loadConfigFile "$sbt_opts_file") "$@"
+
+# if configuration files exist, prepend their contents to the java args so it can be processed by this runner
+# a "versioned" config trumps one on the top level
+if [[ -f "$java_opts_config_version" ]]; then
+  addConfigOpts $(loadConfigFile "$java_opts_config_version")
+elif [[ -f "$java_opts_config_home" ]]; then
+  addConfigOpts $(loadConfigFile "$java_opts_config_home")
+fi
+
+run "$@"

play-framework/student-api/bin/activator.bat

@@ -0,0 +1,248 @@
+@REM activator launcher script
+@REM
+@REM Environment:
+@REM In order for Activator to work you must have Java available on the classpath
+@REM JAVA_HOME - location of a JDK home dir (optional if java on path)
+@REM CFG_OPTS  - JVM options (optional)
+@REM Configuration:
+@REM activatorconfig.txt found in the ACTIVATOR_HOME or ACTIVATOR_HOME/ACTIVATOR_VERSION
+@setlocal enabledelayedexpansion
+
+@echo off
+
+set "var1=%~1"
+if defined var1 (
+  if "%var1%"=="help" (
+    echo.
+    echo Usage activator [options] [command]
+    echo.
+    echo Commands:
+    echo ui                 Start the Activator UI
+    echo new [name] [template-id]  Create a new project with [name] using template [template-id]
+    echo list-templates     Print all available template names
+    echo help               Print this message
+    echo.
+    echo Options:
+    echo -jvm-debug [port]  Turn on JVM debugging, open at the given port.  Defaults to 9999 if no port given.
+    echo.
+    echo Environment variables ^(read from context^):
+    echo JAVA_OPTS          Environment variable, if unset uses ""
+    echo SBT_OPTS           Environment variable, if unset uses ""
+    echo ACTIVATOR_OPTS     Environment variable, if unset uses ""
+    echo.
+    echo Please note that in order for Activator to work you must have Java available on the classpath
+    echo.
+    goto :end
+  )
+)
+
+@REM determine ACTIVATOR_HOME environment variable
+set BIN_DIRECTORY=%~dp0
+set BIN_DIRECTORY=%BIN_DIRECTORY:~0,-1%
+for %%d in (%BIN_DIRECTORY%) do set ACTIVATOR_HOME=%%~dpd
+set ACTIVATOR_HOME=%ACTIVATOR_HOME:~0,-1%
+
+echo ACTIVATOR_HOME=%ACTIVATOR_HOME%
+
+set ERROR_CODE=0
+set APP_VERSION=1.3.10
+set ACTIVATOR_LAUNCH_JAR=activator-launch-%APP_VERSION%.jar
+
+rem Detect if we were double clicked, although theoretically A user could
+rem manually run cmd /c
+for %%x in (%cmdcmdline%) do if %%~x==/c set DOUBLECLICKED=1
+
+set SBT_HOME=%BIN_DIRECTORY
+
+rem Detect if we were double clicked, although theoretically A user could
+rem manually run cmd /c
+for %%x in (%cmdcmdline%) do if %%~x==/c set DOUBLECLICKED=1
+
+rem FIRST we load the config file of extra options.
+set FN=%SBT_HOME%\..\conf\sbtconfig.txt
+set CFG_OPTS=
+FOR /F "tokens=* eol=# usebackq delims=" %%i IN ("%FN%") DO (
+  set DO_NOT_REUSE_ME=%%i
+  rem ZOMG (Part #2) WE use !! here to delay the expansion of
+  rem CFG_OPTS, otherwise it remains "" for this loop.
+  set CFG_OPTS=!CFG_OPTS! !DO_NOT_REUSE_ME!
+)
+
+rem FIRST we load a config file of extra options (if there is one)
+set "CFG_FILE_HOME=%UserProfile%\.activator\activatorconfig.txt"
+set "CFG_FILE_VERSION=%UserProfile%\.activator\%APP_VERSION%\activatorconfig.txt"
+if exist %CFG_FILE_VERSION% (
+  FOR /F "tokens=* eol=# usebackq delims=" %%i IN ("%CFG_FILE_VERSION%") DO (
+    set DO_NOT_REUSE_ME=%%i
+    rem ZOMG (Part #2) WE use !! here to delay the expansion of
+    rem CFG_OPTS, otherwise it remains "" for this loop.
+    set CFG_OPTS=!CFG_OPTS! !DO_NOT_REUSE_ME!
+  )
+)
+if "%CFG_OPTS%"=="" (
+  if exist %CFG_FILE_HOME% (
+    FOR /F "tokens=* eol=# usebackq delims=" %%i IN ("%CFG_FILE_HOME%") DO (
+      set DO_NOT_REUSE_ME=%%i
+      rem ZOMG (Part #2) WE use !! here to delay the expansion of
+      rem CFG_OPTS, otherwise it remains "" for this loop.
+      set CFG_OPTS=!CFG_OPTS! !DO_NOT_REUSE_ME!
+    )
+  )
+)
+
+rem We use the value of the JAVACMD environment variable if defined
+set _JAVACMD=%JAVACMD%
+
+if "%_JAVACMD%"=="" (
+  if not "%JAVA_HOME%"=="" (
+    if exist "%JAVA_HOME%\bin\java.exe" set "_JAVACMD=%JAVA_HOME%\bin\java.exe"
+
+    rem if there is a java home set we make sure it is the first picked up when invoking 'java'
+    SET "PATH=%JAVA_HOME%\bin;%PATH%"
+  )
+)
+
+if "%_JAVACMD%"=="" set _JAVACMD=java
+
+rem Detect if this java is ok to use.
+for /F %%j in ('"%_JAVACMD%" -version  2^>^&1') do (
+  if %%~j==java set JAVAINSTALLED=1
+  if %%~j==openjdk set JAVAINSTALLED=1
+)
+
+rem Detect the same thing about javac
+if "%_JAVACCMD%"=="" (
+  if not "%JAVA_HOME%"=="" (
+    if exist "%JAVA_HOME%\bin\javac.exe" set "_JAVACCMD=%JAVA_HOME%\bin\javac.exe"
+  )
+)
+if "%_JAVACCMD%"=="" set _JAVACCMD=javac
+for /F %%j in ('"%_JAVACCMD%" -version 2^>^&1') do (
+  if %%~j==javac set JAVACINSTALLED=1
+)
+
+rem BAT has no logical or, so we do it OLD SCHOOL! Oppan Redmond Style
+set JAVAOK=true
+if not defined JAVAINSTALLED set JAVAOK=false
+if not defined JAVACINSTALLED set JAVAOK=false
+
+if "%JAVAOK%"=="false" (
+  echo.
+  echo A Java JDK is not installed or can't be found.
+  if not "%JAVA_HOME%"=="" (
+    echo JAVA_HOME = "%JAVA_HOME%"
+  )
+  echo.
+  echo Please go to
+  echo   http://www.oracle.com/technetwork/java/javase/downloads/index.html
+  echo and download a valid Java JDK and install before running Activator.
+  echo.
+  echo If you think this message is in error, please check
+  echo your environment variables to see if "java.exe" and "javac.exe" are
+  echo available via JAVA_HOME or PATH.
+  echo.
+  if defined DOUBLECLICKED pause
+  exit /B 1
+)
+
+rem Check what Java version is being used to determine what memory options to use
+for /f "tokens=3" %%g in ('java -version 2^>^&1 ^| findstr /i "version"') do (
+    set JAVA_VERSION=%%g
+)
+
+rem Strips away the " characters
+set JAVA_VERSION=%JAVA_VERSION:"=%
+
+rem TODO Check if there are existing mem settings in JAVA_OPTS/CFG_OPTS and use those instead of the below
+for /f "delims=. tokens=1-3" %%v in ("%JAVA_VERSION%") do (
+    set MAJOR=%%v
+    set MINOR=%%w
+    set BUILD=%%x
+
+    set META_SIZE=-XX:MetaspaceSize=64M -XX:MaxMetaspaceSize=256M
+    if "!MINOR!" LSS "8" (
+      set META_SIZE=-XX:PermSize=64M -XX:MaxPermSize=256M
+    )
+
+    set MEM_OPTS=!META_SIZE!
+ )
+
+rem We use the value of the JAVA_OPTS environment variable if defined, rather than the config.
+set _JAVA_OPTS=%JAVA_OPTS%
+if "%_JAVA_OPTS%"=="" set _JAVA_OPTS=%CFG_OPTS%
+
+set DEBUG_OPTS=
+
+rem Loop through the arguments, building remaining args in args variable
+set args=
+:argsloop
+if not "%~1"=="" (
+  rem Checks if the argument contains "-D" and if true, adds argument 1 with 2 and puts an equal sign between them.
+  rem This is done since batch considers "=" to be a delimiter so we need to circumvent this behavior with a small hack.
+  set arg1=%~1
+  if "!arg1:~0,2!"=="-D" (
+     set "args=%args% "%~1"="%~2""
+    shift
+    shift
+    goto argsloop
+  )
+
+  if "%~1"=="-jvm-debug" (
+    if not "%~2"=="" (
+      rem This piece of magic somehow checks that an argument is a number
+      for /F "delims=0123456789" %%i in ("%~2") do (
+        set var="%%i"
+      )
+      if defined var (
+        rem Not a number, assume no argument given and default to 9999
+        set JPDA_PORT=9999
+      ) else (
+        rem Port was given, shift arguments
+        set JPDA_PORT=%~2
+        shift
+      )
+    ) else (
+      set JPDA_PORT=9999
+    )
+    shift
+
+    set DEBUG_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=!JPDA_PORT!
+    goto argsloop
+  )
+  rem else
+  set "args=%args% "%~1""
+  shift
+  goto argsloop
+)
+
+:run
+
+if "!args!"=="" (
+  if defined DOUBLECLICKED (
+    set CMDS="ui"
+  ) else set CMDS=!args!
+) else set CMDS=!args!
+
+rem We add a / in front, so we get file:///C: instead of file://C:
+rem Java considers the later a UNC path.
+rem We also attempt a solid effort at making it URI friendly.
+rem We don't even bother with UNC paths.
+set JAVA_FRIENDLY_HOME_1=/!ACTIVATOR_HOME:\=/!
+set JAVA_FRIENDLY_HOME=/!JAVA_FRIENDLY_HOME_1: =%%20!
+
+rem Checks if the command contains spaces to know if it should be wrapped in quotes or not
+set NON_SPACED_CMD=%_JAVACMD: =%
+if "%_JAVACMD%"=="%NON_SPACED_CMD%" %_JAVACMD% %DEBUG_OPTS% %MEM_OPTS% %ACTIVATOR_OPTS% %SBT_OPTS% %_JAVA_OPTS% "-Dactivator.home=%JAVA_FRIENDLY_HOME%" -jar "%ACTIVATOR_HOME%\libexec\%ACTIVATOR_LAUNCH_JAR%" %CMDS%
+if NOT "%_JAVACMD%"=="%NON_SPACED_CMD%" "%_JAVACMD%" %DEBUG_OPTS% %MEM_OPTS% %ACTIVATOR_OPTS% %SBT_OPTS% %_JAVA_OPTS% "-Dactivator.home=%JAVA_FRIENDLY_HOME%" -jar "%ACTIVATOR_HOME%\libexec\%ACTIVATOR_LAUNCH_JAR%" %CMDS%
+
+if ERRORLEVEL 1 goto error
+goto end
+
+:error
+set ERROR_CODE=1
+
+:end
+
+@endlocal
+
+exit /B %ERROR_CODE%

play-framework/student-api/build.sbt

@@ -0,0 +1,13 @@
+name := """student-api"""
+
+version := "1.0-SNAPSHOT"
+
+lazy val root = (project in file(".")).enablePlugins(PlayJava)
+
+scalaVersion := "2.11.7"
+
+libraryDependencies ++= Seq(
+  javaJdbc,
+  cache,
+  javaWs
+)

play-framework/student-api/conf/application.conf

@@ -0,0 +1,353 @@
+# This is the main configuration file for the application.
+# https://www.playframework.com/documentation/latest/ConfigFile
+# ~~~~~
+# Play uses HOCON as its configuration file format.  HOCON has a number
+# of advantages over other config formats, but there are two things that
+# can be used when modifying settings.
+#
+# You can include other configuration files in this main application.conf file:
+#include "extra-config.conf"
+#
+# You can declare variables and substitute for them:
+#mykey = ${some.value}
+#
+# And if an environment variable exists when there is no other subsitution, then
+# HOCON will fall back to substituting environment variable:
+#mykey = ${JAVA_HOME}
+
+## Akka
+# https://www.playframework.com/documentation/latest/ScalaAkka#Configuration
+# https://www.playframework.com/documentation/latest/JavaAkka#Configuration
+# ~~~~~
+# Play uses Akka internally and exposes Akka Streams and actors in Websockets and
+# other streaming HTTP responses.
+akka {
+  # "akka.log-config-on-start" is extraordinarly useful because it log the complete
+  # configuration at INFO level, including defaults and overrides, so it s worth
+  # putting at the very top.
+  #
+  # Put the following in your conf/logback.xml file:
+  #
+  # <logger name="akka.actor" level="INFO" />
+  #
+  # And then uncomment this line to debug the configuration.
+  #
+  #log-config-on-start = true
+}
+
+## Secret key
+# http://www.playframework.com/documentation/latest/ApplicationSecret
+# ~~~~~
+# The secret key is used to sign Play's session cookie.
+# This must be changed for production, but we don't recommend you change it in this file.
+play.crypto.secret = "changeme"
+
+## Modules
+# https://www.playframework.com/documentation/latest/Modules
+# ~~~~~
+# Control which modules are loaded when Play starts.  Note that modules are
+# the replacement for "GlobalSettings", which are deprecated in 2.5.x.
+# Please see https://www.playframework.com/documentation/latest/GlobalSettings
+# for more information.
+#
+# You can also extend Play functionality by using one of the publically available
+# Play modules: https://playframework.com/documentation/latest/ModuleDirectory
+play.modules {
+  # By default, Play will load any class called Module that is defined
+  # in the root package (the "app" directory), or you can define them
+  # explicitly below.
+  # If there are any built-in modules that you want to disable, you can list them here.
+  #enabled += my.application.Module
+
+  # If there are any built-in modules that you want to disable, you can list them here.
+  #disabled += ""
+}
+
+## IDE
+# https://www.playframework.com/documentation/latest/IDE
+# ~~~~~
+# Depending on your IDE, you can add a hyperlink for errors that will jump you
+# directly to the code location in the IDE in dev mode. The following line makes 
+# use of the IntelliJ IDEA REST interface: 
+#play.editor="http://localhost:63342/api/file/?file=%s&line=%s"
+
+## Internationalisation
+# https://www.playframework.com/documentation/latest/JavaI18N
+# https://www.playframework.com/documentation/latest/ScalaI18N
+# ~~~~~
+# Play comes with its own i18n settings, which allow the user's preferred language
+# to map through to internal messages, or allow the language to be stored in a cookie.
+play.i18n {
+  # The application languages
+  langs = [ "en" ]
+
+  # Whether the language cookie should be secure or not
+  #langCookieSecure = true
+
+  # Whether the HTTP only attribute of the cookie should be set to true
+  #langCookieHttpOnly = true
+}
+
+## Play HTTP settings
+# ~~~~~
+play.http {
+  ## Router
+  # https://www.playframework.com/documentation/latest/JavaRouting
+  # https://www.playframework.com/documentation/latest/ScalaRouting
+  # ~~~~~
+  # Define the Router object to use for this application.
+  # This router will be looked up first when the application is starting up,
+  # so make sure this is the entry point.
+  # Furthermore, it's assumed your route file is named properly.
+  # So for an application router like `my.application.Router`,
+  # you may need to define a router file `conf/my.application.routes`.
+  # Default to Routes in the root package (aka "apps" folder) (and conf/routes)
+  #router = my.application.Router
+
+  ## Action Creator
+  # https://www.playframework.com/documentation/latest/JavaActionCreator
+  # ~~~~~
+  #actionCreator = null
+
+  ## ErrorHandler
+  # https://www.playframework.com/documentation/latest/JavaRouting
+  # https://www.playframework.com/documentation/latest/ScalaRouting
+  # ~~~~~
+  # If null, will attempt to load a class called ErrorHandler in the root package,
+  #errorHandler = null
+
+  ## Filters
+  # https://www.playframework.com/documentation/latest/ScalaHttpFilters
+  # https://www.playframework.com/documentation/latest/JavaHttpFilters
+  # ~~~~~
+  # Filters run code on every request. They can be used to perform
+  # common logic for all your actions, e.g. adding common headers.
+  # Defaults to "Filters" in the root package (aka "apps" folder)
+  # Alternatively you can explicitly register a class here.
+  #filters = my.application.Filters
+
+  ## Session & Flash
+  # https://www.playframework.com/documentation/latest/JavaSessionFlash
+  # https://www.playframework.com/documentation/latest/ScalaSessionFlash
+  # ~~~~~
+  session {
+    # Sets the cookie to be sent only over HTTPS.
+    #secure = true
+
+    # Sets the cookie to be accessed only by the server.
+    #httpOnly = true
+
+    # Sets the max-age field of the cookie to 5 minutes.
+    # NOTE: this only sets when the browser will discard the cookie. Play will consider any
+    # cookie value with a valid signature to be a valid session forever. To implement a server side session timeout,
+    # you need to put a timestamp in the session and check it at regular intervals to possibly expire it.
+    #maxAge = 300
+
+    # Sets the domain on the session cookie.
+    #domain = "example.com"
+  }
+
+  flash {
+    # Sets the cookie to be sent only over HTTPS.
+    #secure = true
+
+    # Sets the cookie to be accessed only by the server.
+    #httpOnly = true
+  }
+}
+
+## Netty Provider
+# https://www.playframework.com/documentation/latest/SettingsNetty
+# ~~~~~
+play.server.netty {
+  # Whether the Netty wire should be logged
+  #log.wire = true
+
+  # If you run Play on Linux, you can use Netty's native socket transport
+  # for higher performance with less garbage.
+  #transport = "native"
+}
+
+## WS (HTTP Client)
+# https://www.playframework.com/documentation/latest/ScalaWS#Configuring-WS
+# ~~~~~
+# The HTTP client primarily used for REST APIs.  The default client can be
+# configured directly, but you can also create different client instances
+# with customized settings. You must enable this by adding to build.sbt:
+#
+# libraryDependencies += ws // or javaWs if using java
+#
+play.ws {
+  # Sets HTTP requests not to follow 302 requests
+  #followRedirects = false
+
+  # Sets the maximum number of open HTTP connections for the client.
+  #ahc.maxConnectionsTotal = 50
+
+  ## WS SSL
+  # https://www.playframework.com/documentation/latest/WsSSL
+  # ~~~~~
+  ssl {
+    # Configuring HTTPS with Play WS does not require programming.  You can
+    # set up both trustManager and keyManager for mutual authentication, and
+    # turn on JSSE debugging in development with a reload.
+    #debug.handshake = true
+    #trustManager = {
+    #  stores = [
+    #    { type = "JKS", path = "exampletrust.jks" }
+    #  ]
+    #}
+  }
+}
+
+## Cache
+# https://www.playframework.com/documentation/latest/JavaCache
+# https://www.playframework.com/documentation/latest/ScalaCache
+# ~~~~~
+# Play comes with an integrated cache API that can reduce the operational
+# overhead of repeated requests. You must enable this by adding to build.sbt:
+#
+# libraryDependencies += cache
+#
+play.cache {
+  # If you want to bind several caches, you can bind the individually
+  #bindCaches = ["db-cache", "user-cache", "session-cache"]
+}
+
+## Filters
+# https://www.playframework.com/documentation/latest/Filters
+# ~~~~~
+# There are a number of built-in filters that can be enabled and configured
+# to give Play greater security.  You must enable this by adding to build.sbt:
+#
+# libraryDependencies += filters
+#
+play.filters {
+  ## CORS filter configuration
+  # https://www.playframework.com/documentation/latest/CorsFilter
+  # ~~~~~
+  # CORS is a protocol that allows web applications to make requests from the browser
+  # across different domains.
+  # NOTE: You MUST apply the CORS configuration before the CSRF filter, as CSRF has
+  # dependencies on CORS settings.
+  cors {
+    # Filter paths by a whitelist of path prefixes
+    #pathPrefixes = ["/some/path", ...]
+
+    # The allowed origins. If null, all origins are allowed.
+    #allowedOrigins = ["http://www.example.com"]
+
+    # The allowed HTTP methods. If null, all methods are allowed
+    #allowedHttpMethods = ["GET", "POST"]
+  }
+
+  ## CSRF Filter
+  # https://www.playframework.com/documentation/latest/ScalaCsrf#Applying-a-global-CSRF-filter
+  # https://www.playframework.com/documentation/latest/JavaCsrf#Applying-a-global-CSRF-filter
+  # ~~~~~
+  # Play supports multiple methods for verifying that a request is not a CSRF request.
+  # The primary mechanism is a CSRF token. This token gets placed either in the query string
+  # or body of every form submitted, and also gets placed in the users session.
+  # Play then verifies that both tokens are present and match.
+  csrf {
+    # Sets the cookie to be sent only over HTTPS
+    #cookie.secure = true
+
+    # Defaults to CSRFErrorHandler in the root package.
+    #errorHandler = MyCSRFErrorHandler
+  }
+
+  ## Security headers filter configuration
+  # https://www.playframework.com/documentation/latest/SecurityHeaders
+  # ~~~~~
+  # Defines security headers that prevent XSS attacks.
+  # If enabled, then all options are set to the below configuration by default:
+  headers {
+    # The X-Frame-Options header. If null, the header is not set.
+    #frameOptions = "DENY"
+
+    # The X-XSS-Protection header. If null, the header is not set.
+    #xssProtection = "1; mode=block"
+
+    # The X-Content-Type-Options header. If null, the header is not set.
+    #contentTypeOptions = "nosniff"
+
+    # The X-Permitted-Cross-Domain-Policies header. If null, the header is not set.
+    #permittedCrossDomainPolicies = "master-only"
+
+    # The Content-Security-Policy header. If null, the header is not set.
+    #contentSecurityPolicy = "default-src 'self'"
+  }
+
+  ## Allowed hosts filter configuration
+  # https://www.playframework.com/documentation/latest/AllowedHostsFilter
+  # ~~~~~
+  # Play provides a filter that lets you configure which hosts can access your application.
+  # This is useful to prevent cache poisoning attacks.
+  hosts {
+    # Allow requests to example.com, its subdomains, and localhost:9000.
+    #allowed = [".example.com", "localhost:9000"]
+  }
+}
+
+## Evolutions
+# https://www.playframework.com/documentation/latest/Evolutions
+# ~~~~~
+# Evolutions allows database scripts to be automatically run on startup in dev mode
+# for database migrations. You must enable this by adding to build.sbt:
+#
+# libraryDependencies += evolutions
+#
+play.evolutions {
+  # You can disable evolutions for a specific datasource if necessary
+  #db.default.enabled = false
+}
+
+## Database Connection Pool
+# https://www.playframework.com/documentation/latest/SettingsJDBC
+# ~~~~~
+# Play doesn't require a JDBC database to run, but you can easily enable one.
+#
+# libraryDependencies += jdbc
+#
+play.db {
+  # The combination of these two settings results in "db.default" as the
+  # default JDBC pool:
+  #config = "db"
+  #default = "default"
+
+  # Play uses HikariCP as the default connection pool.  You can override
+  # settings by changing the prototype:
+  prototype {
+    # Sets a fixed JDBC connection pool size of 50
+    #hikaricp.minimumIdle = 50
+    #hikaricp.maximumPoolSize = 50
+  }
+}
+
+## JDBC Datasource
+# https://www.playframework.com/documentation/latest/JavaDatabase
+# https://www.playframework.com/documentation/latest/ScalaDatabase
+# ~~~~~
+# Once JDBC datasource is set up, you can work with several different
+# database options:
+#
+# Slick (Scala preferred option): https://www.playframework.com/documentation/latest/PlaySlick
+# JPA (Java preferred option): https://playframework.com/documentation/latest/JavaJPA
+# EBean: https://playframework.com/documentation/latest/JavaEbean
+# Anorm: https://www.playframework.com/documentation/latest/ScalaAnorm
+#
+db {
+  # You can declare as many datasources as you want.
+  # By convention, the default datasource is named `default`
+
+  # https://www.playframework.com/documentation/latest/Developing-with-the-H2-Database
+  #default.driver = org.h2.Driver
+  #default.url = "jdbc:h2:mem:play"
+  #default.username = sa
+  #default.password = ""
+
+  # You can turn on SQL logging for any datasource
+  # https://www.playframework.com/documentation/latest/Highlights25#Logging-SQL-statements
+  #default.logSql=true
+}

play-framework/student-api/conf/logback.xml

@@ -0,0 +1,41 @@
+<!-- https://www.playframework.com/documentation/latest/SettingsLogger -->
+<configuration>
+
+  <conversionRule conversionWord="coloredLevel" converterClass="play.api.libs.logback.ColoredLevel" />
+
+  <appender name="FILE" class="ch.qos.logback.core.FileAppender">
+    <file>${application.home:-.}/logs/application.log</file>
+    <encoder>
+      <pattern>%date [%level] from %logger in %thread - %message%n%xException</pattern>
+    </encoder>
+  </appender>
+
+  <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+    <encoder>
+      <pattern>%coloredLevel %logger{15} - %message%n%xException{10}</pattern>
+    </encoder>
+  </appender>
+
+  <appender name="ASYNCFILE" class="ch.qos.logback.classic.AsyncAppender">
+    <appender-ref ref="FILE" />
+  </appender>
+
+  <appender name="ASYNCSTDOUT" class="ch.qos.logback.classic.AsyncAppender">
+    <appender-ref ref="STDOUT" />
+  </appender>
+
+  <logger name="play" level="INFO" />
+  <logger name="application" level="DEBUG" />
+
+  <!-- Off these ones as they are annoying, and anyway we manage configuration ourselves -->
+  <logger name="com.avaje.ebean.config.PropertyMapLoader" level="OFF" />
+  <logger name="com.avaje.ebeaninternal.server.core.XmlConfigLoader" level="OFF" />
+  <logger name="com.avaje.ebeaninternal.server.lib.BackgroundThread" level="OFF" />
+  <logger name="com.gargoylesoftware.htmlunit.javascript" level="OFF" />
+
+  <root level="WARN">
+    <appender-ref ref="ASYNCFILE" />
+    <appender-ref ref="ASYNCSTDOUT" />
+  </root>
+
+</configuration>

play-framework/student-api/conf/routes

@@ -0,0 +1,12 @@
+# Routes
+# This file defines all application routes (Higher priority routes first)
+# ~~~~
+
+GET		/		controllers.StudentController.listStudents()
+POST     /:id		controllers.StudentController.retrieve(id:Int)
+POST    /			controllers.StudentController.create()
+PUT		/		controllers.StudentController.update()
+DELETE	/:id		controllers.StudentController.delete(id:Int)
+
+# Map static resources from the /public folder to the /assets URL path
+GET     /assets/*file               controllers.Assets.versioned(path="/public", file: Asset)

play-framework/student-api/project/build.properties

@@ -0,0 +1,4 @@
+#Activator-generated Properties
+#Wed Sep 07 12:29:40 EAT 2016
+template.uuid=c373963b-f5ad-433b-8e74-178e7ae25b1c
+sbt.version=0.13.11

play-framework/student-api/project/plugins.sbt

@@ -0,0 +1,21 @@
+// The Play plugin
+addSbtPlugin("com.typesafe.play" % "sbt-plugin" % "2.5.6")
+
+// Web plugins
+addSbtPlugin("com.typesafe.sbt" % "sbt-coffeescript" % "1.0.0")
+addSbtPlugin("com.typesafe.sbt" % "sbt-less" % "1.1.0")
+addSbtPlugin("com.typesafe.sbt" % "sbt-jshint" % "1.0.3")
+addSbtPlugin("com.typesafe.sbt" % "sbt-rjs" % "1.0.7")
+addSbtPlugin("com.typesafe.sbt" % "sbt-digest" % "1.1.0")
+addSbtPlugin("com.typesafe.sbt" % "sbt-mocha" % "1.1.0")
+addSbtPlugin("org.irundaia.sbt" % "sbt-sassify" % "1.4.2")
+
+// Play enhancer - this automatically generates getters/setters for public fields
+// and rewrites accessors of these fields to use the getters/setters. Remove this
+// plugin if you prefer not to have this feature, or disable on a per project
+// basis using disablePlugins(PlayEnhancer) in your build.sbt
+addSbtPlugin("com.typesafe.sbt" % "sbt-play-enhancer" % "1.1.0")
+
+// Play Ebean support, to enable, uncomment this line, and enable in your build.sbt using
+// enablePlugins(PlayEbean).
+// addSbtPlugin("com.typesafe.sbt" % "sbt-play-ebean" % "1.0.0")

play-framework/student-api/public/javascripts/hello.js

@@ -0,0 +1,3 @@
+if (window.console) {
+  console.log("Welcome to your Play application's JavaScript!");
+}

play-framework/student-api/test/ApplicationTest.java

@@ -0,0 +1,45 @@
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import org.junit.*;
+
+import play.mvc.*;
+import play.test.*;
+import play.data.DynamicForm;
+import play.data.validation.ValidationError;
+import play.data.validation.Constraints.RequiredValidator;
+import play.i18n.Lang;
+import play.libs.F;
+import play.libs.F.*;
+import play.twirl.api.Content;
+
+import static play.test.Helpers.*;
+import static org.junit.Assert.*;
+
+
+/**
+ *
+ * Simple (JUnit) tests that can call all parts of a play app.
+ * If you are interested in mocking a whole application, see the wiki for more details.
+ *
+ */
+public class ApplicationTest {
+
+    @Test
+    public void simpleCheck() {
+        int a = 1 + 1;
+        assertEquals(2, a);
+    }
+
+    @Test
+    public void renderTemplate() {
+        Content html = views.html.index.render("Your new application is ready.");
+        assertEquals("text/html", html.contentType());
+        assertTrue(html.body().contains("Your new application is ready."));
+    }
+
+
+}

play-framework/student-api/test/IntegrationTest.java

@@ -0,0 +1,25 @@
+import org.junit.*;
+
+import play.mvc.*;
+import play.test.*;
+
+import static play.test.Helpers.*;
+import static org.junit.Assert.*;
+
+import static org.fluentlenium.core.filter.FilterConstructor.*;
+
+public class IntegrationTest {
+
+    /**
+     * add your integration test here
+     * in this example we just check if the welcome page is being shown
+     */
+    @Test
+    public void test() {
+        running(testServer(3333, fakeApplication(inMemoryDatabase())), HTMLUNIT, browser -> {
+            browser.goTo("http://localhost:3333");
+            assertTrue(browser.pageSource().contains("Your new application is ready."));
+        });
+    }
+
+}