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RePlay is a fork of the Play1 framework, created by Codeborne.
package play;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import play.cache.Cache;
import play.classloading.ApplicationClasses;
import play.inject.BeanSource;
import play.inject.DefaultBeanSource;
import play.inject.Injector;
import play.jobs.Job;
import play.mvc.ActionInvoker;
import play.mvc.CookieSessionStore;
import play.mvc.PlayController;
import play.mvc.Router;
import play.mvc.SessionStore;
import play.plugins.PluginCollection;
import play.templates.TemplateLoader;
import jakarta.inject.Inject;
import javax.annotation.Nullable;
import java.io.File;
import java.lang.management.ManagementFactory;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Properties;
import static java.nio.charset.StandardCharsets.UTF_8;
/**
* Main framework class
*/
public class Play {
private static final Logger logger = LoggerFactory.getLogger(Play.class);
public enum Mode {
/**
* Enable development-specific features, e.g. view the documentation at the URL {@literal "/@documentation"}.
*/
DEV,
/**
* Disable development-specific features.
*/
PROD;
public boolean isDev() {
return this == DEV;
}
public boolean isProd() {
return this == PROD;
}
}
public static boolean started;
public static String id = System.getProperty("play.id", "");
public static Mode mode = Mode.DEV;
public static File appRoot = new File(System.getProperty("user.dir"));
public static File tmpDir;
public static final ApplicationClasses classes = new ApplicationClasses();
/**
* All paths to search for templates files
*/
public static List templatesPath = new ArrayList<>(2);
/**
* The routes file
*/
public static ClasspathResource routes;
/**
* The app configuration (already resolved from the framework id)
*/
public static Properties configuration = new Properties();
/**
* The last time than the application has started
*/
public static long startedAt;
/**
* The list of supported locales
*/
public static List langs = new ArrayList<>(16);
/**
* The very secret key
*/
public static String secretKey;
/**
* pluginCollection that holds all loaded plugins and all enabled plugins
*/
public static PluginCollection pluginCollection = new PluginCollection();
public static boolean usePrecompiled;
/**
* This is used as default encoding everywhere related to the web: request, response, WS
*/
public static final Charset defaultWebEncoding = UTF_8;
public static Invoker invoker;
/**
* Not recommended to use directly.
* Instead, you should use @Inject annotation to inject your dependencies (either constructor or field injection).
*/
public static BeanSource beanSource;
private final ConfLoader confLoader;
private final ActionInvoker actionInvoker;
public Play() {
this(new DefaultBeanSource());
}
public Play(BeanSource beanSource) {
this(new PropertiesConfLoader(), beanSource, new CookieSessionStore());
}
public Play(ConfLoader confLoader, BeanSource beanSource, SessionStore sessionStore) {
Play.beanSource = beanSource;
this.confLoader = confLoader;
this.actionInvoker = new ActionInvoker(sessionStore);
}
/**
* Init the framework
*
* @param id The framework id to use
*/
public void init(String id) {
setupBase(id);
readConfiguration();
new PlayLoggingSetup().init();
logger.info("Starting {}", appRoot.getAbsolutePath());
setupTmpDir();
setupApplicationMode();
setupAppRoot();
routes = ClasspathResource.file("routes");
pluginCollection.loadPlugins();
Play.invoker = new Invoker();
}
/**
* Minimalistic initialization of the framework; allowing DIY-initialization
* (no modules, no plugins from .plugins file, no routes from routes file, no config file)
*
* @param id The framework id to use
*/
public void minimalInit(String id) {
setupBase(id);
new PlayLoggingSetup().init();
logger.info("Starting {}", appRoot.getAbsolutePath());
setupTmpDir();
setupApplicationMode();
setupAppRoot();
Play.invoker = new Invoker();
}
private void setupBase(String id) {
Injector.setBeanSource(beanSource);
Play.usePrecompiled = "true".equals(System.getProperty("precompiled", "false"));
Play.id = id;
Play.started = false;
}
private static void setupTmpDir() {
if (configuration.getProperty("play.tmp", "tmp").equals("none")) {
tmpDir = null;
logger.debug("No tmp folder will be used (play.tmp is set to none)");
}
else {
tmpDir = new File(configuration.getProperty("play.tmp", "tmp"));
if (!tmpDir.isAbsolute()) {
tmpDir = new File(appRoot, tmpDir.getPath());
}
logger.trace("Using {} as tmp dir", Play.tmpDir);
if (!tmpDir.exists()) {
if (!tmpDir.mkdirs()) {
throw new IllegalStateException("Could not create " + tmpDir.getAbsolutePath());
}
}
}
}
private static void setupApplicationMode() {
try {
String configuredMode = configuration.getProperty("application.mode");
if (configuredMode == null) {
boolean isDebug = ManagementFactory.getRuntimeMXBean().getInputArguments().toString().indexOf("-agentlib:jdwp") > 0;
configuredMode = isDebug ? "DEV" : "PROD";
}
mode = Mode.valueOf(configuredMode.toUpperCase());
}
catch (IllegalArgumentException e) {
throw new IllegalArgumentException(
String.format("Illegal mode '%s', use either prod or dev", configuration.getProperty("application.mode")), e);
}
// Set to the Prod mode must be done before loadModules call as some modules (e.g. DocViewer) is only available in DEV
if (usePrecompiled) {
mode = Mode.PROD;
}
}
private static void setupAppRoot() {
// Build basic templates path
templatesPath.clear();
if (new File(appRoot, "app/views").exists() || (usePrecompiled && new File(appRoot, "precompiled/templates/app/views").exists())) {
templatesPath.add(new File(appRoot, "app/views"));
}
}
public ActionInvoker getActionInvoker() {
return actionInvoker;
}
/**
* Read application.conf and resolve overridden key using the play id mechanism.
*/
private void readConfiguration() {
configuration = confLoader.readConfiguration(Play.id);
pluginCollection.onConfigurationRead();
}
/**
* Start the application
*
* @throws IllegalArgumentException if the application is already started
*/
public synchronized void start() {
if (started) {
throw new IllegalArgumentException("Play is already started");
}
try {
registerShutdownHook();
readConfiguration();
initLangs();
TemplateLoader.cleanCompiledCache();
initSecretKey();
Router.detectChanges();
Cache.init();
pluginCollection.onApplicationStart();
injectStaticFields();
started = true;
startedAt = System.currentTimeMillis();
logger.info("Application '{}' is now started !", configuration.getProperty("application.name", ""));
pluginCollection.afterApplicationStart();
}
catch (RuntimeException e) {
stop();
started = false;
throw e;
}
}
private void injectStaticFields() {
injectStaticFields(Play.classes.getAssignableClasses(PlayController.class));
injectStaticFields(Play.classes.getAssignableClasses(Job.class));
}
private void injectStaticFields(List> classes) {
for (Class clazz : classes) {
injectStaticFields(clazz);
}
}
private void injectStaticFields(Class clazz) {
for (Field field : clazz.getDeclaredFields()) {
if (isStaticInjectable(field)) {
inject(field);
}
}
}
private boolean isStaticInjectable(Field field) {
return Modifier.isStatic(field.getModifiers()) && field.isAnnotationPresent(Inject.class);
}
private void inject(Field field) {
field.setAccessible(true);
try {
field.set(null, beanSource.getBeanOfType(field.getType()));
}
catch (IllegalAccessException e) {
throw new RuntimeException(e);
}
}
/**
* Can only register shutdown-hook if running as standalone server
* registers shutdown hook - Now there's a good chance that we can notify
* our plugins that we're going down when some calls ctrl+c or just kills our process
*/
private void registerShutdownHook() {
Runtime.getRuntime().addShutdownHook(new Thread(this::stop));
}
private static void initLangs() {
langs = new ArrayList<>(Arrays.asList(configuration.getProperty("application.langs", "").split(",")));
if (langs.size() == 1 && langs.get(0).trim().length() == 0) {
langs = new ArrayList<>(16);
}
}
private static void initSecretKey() {
secretKey = configuration.getProperty("application.secret", "").trim();
if (secretKey.isEmpty()) {
logger.warn("No secret key defined. Sessions will not be encrypted");
}
}
private void stop() {
if (started) {
logger.info("Stopping the play application");
pluginCollection.onApplicationStop();
started = false;
Cache.stop();
Router.lastLoading = 0L;
}
else {
logger.warn("Cannot stop because Play is not started");
}
}
static void detectChanges() {
Router.detectChanges();
pluginCollection.detectChange();
}
public static T plugin(Class clazz) {
return pluginCollection.getPluginInstance(clazz);
}
/**
* Search a File in the application
*
* @param path Relative path from the applications root
* @return The virtualFile or null
*/
@Nullable
public static File file(String path) {
File file = new File(appRoot, path);
return file.exists() ? file : null;
}
/**
* Search a File in the current application
*
* @param path Relative path from the application root
* @return The file even if it doesn't exist
*/
public static File getFile(String path) {
return new File(appRoot, path);
}
/**
* Returns true if application is running in test-mode. Test-mode is resolved from the framework id.
*
* Your app is running in test-mode if the framework id (Play.id) is 'test' or 'test-?.*'
*
* @return true if test mode
*/
public static boolean runningInTestMode() {
return id.matches("test|test-?.*");
}
public static boolean useDefaultMockMailSystem() {
return "mock".equals(configuration.getProperty("mail.smtp", "")) && mode == Mode.DEV;
}
public static String relativePath(File file) {
return file.getAbsolutePath().replace(appRoot.getAbsolutePath(), "");
}
}
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