/**
* an action call with cache
*
* @param ac the action invocation wrapper
* @param key user specified key, the user needs to explicitly compose a key from the action and
* arguments. The template transformer can put the action calling string as prefix of the key,
* e.g., if the acton is Application.show(post), the key should be compose of
* "Application.show()-" + post.toString(). Note we cannot use "post" literally since post as
* the var name can be anything that the template author chooses to use. Problem: Application
* needs to be imported or all controllers package must be imported. Controllers in sub
* packages needs special care in importing since a simple import controllers.* won't work for
* controllers in sub packages.
* @param ttl expiration Ex: 10s, 3mn, 8h
*/
public void render(String key, String ttl, Body body) {
String co = (String) Cache.get(key);
if (co == null) {
co = body.render();
Cache.set(key, co, Time.parseDuration(ttl));
}
p(co);
return;
}
static Session restore() {
try {
Session session = new Session();
Http.Cookie cookie = Http.Request.current().cookies.get(COOKIE_PREFIX + "_SESSION");
final int duration = Time.parseDuration(COOKIE_EXPIRE);
final long expiration = (duration * 1000l);
if (cookie != null
&& Play.started
&& cookie.value != null
&& !cookie.value.trim().equals("")) {
String value = cookie.value;
int firstDashIndex = value.indexOf("-");
if (firstDashIndex > -1) {
String sign = value.substring(0, firstDashIndex);
String data = value.substring(firstDashIndex + 1);
if (CookieDataCodec.safeEquals(sign, Crypto.sign(data, Play.secretKey.getBytes()))) {
CookieDataCodec.decode(session.data, data);
}
}
if (COOKIE_EXPIRE != null) {
// Verify that the session contains a timestamp, and that it's not expired
if (!session.contains(TS_KEY)) {
session = new Session();
} else {
if ((Long.parseLong(session.get(TS_KEY))) < System.currentTimeMillis()) {
// Session expired
session = new Session();
}
}
session.put(TS_KEY, System.currentTimeMillis() + expiration);
} else {
// Just restored. Nothing changed. No cookie-expire.
session.changed = false;
}
} else {
// no previous cookie to restore; but we may have to set the timestamp in the new cookie
if (COOKIE_EXPIRE != null) {
session.put(TS_KEY, (System.currentTimeMillis() + expiration));
}
}
return session;
} catch (Exception e) {
throw new UnexpectedException(
"Corrupted HTTP session from " + Http.Request.current().remoteAddress, e);
}
}
void save() {
if (Http.Response.current() == null) {
// Some request like WebSocket don't have any response
return;
}
if (!changed && SESSION_SEND_ONLY_IF_CHANGED && COOKIE_EXPIRE == null) {
// Nothing changed and no cookie-expire, consequently send nothing back.
return;
}
if (isEmpty()) {
// The session is empty: delete the cookie
if (Http.Request.current().cookies.containsKey(COOKIE_PREFIX + "_SESSION")
|| !SESSION_SEND_ONLY_IF_CHANGED) {
Http.Response.current()
.setCookie(
COOKIE_PREFIX + "_SESSION", "", null, "/", 0, COOKIE_SECURE, SESSION_HTTPONLY);
}
return;
}
try {
String sessionData = CookieDataCodec.encode(data);
String sign = Crypto.sign(sessionData, Play.secretKey.getBytes());
if (COOKIE_EXPIRE == null) {
Http.Response.current()
.setCookie(
COOKIE_PREFIX + "_SESSION",
sign + "-" + sessionData,
null,
"/",
null,
COOKIE_SECURE,
SESSION_HTTPONLY);
} else {
Http.Response.current()
.setCookie(
COOKIE_PREFIX + "_SESSION",
sign + "-" + sessionData,
null,
"/",
Time.parseDuration(COOKIE_EXPIRE),
COOKIE_SECURE,
SESSION_HTTPONLY);
}
} catch (Exception e) {
throw new UnexpectedException("Session serializationProblem", e);
}
}
public static void scheduleForCRON(Job job) {
if (job.getClass().isAnnotationPresent(On.class)) {
String cron = ((On) (job.getClass().getAnnotation(On.class))).value();
if (cron.startsWith("cron.")) {
cron = Play.configuration.getProperty(cron);
}
if (cron != null && !cron.equals("")) {
try {
Date now = new Date();
Date nextDate = Time.parseCRONExpression(cron);
long delay = nextDate.getTime() - now.getTime();
executor.schedule((Callable) job, delay, TimeUnit.MILLISECONDS);
job.executor = executor;
} catch (Exception ex) {
throw new UnexpectedException(ex);
}
} else {
Logger.info("Skipping job %s, cron expression is not defined", job.getClass().getName());
}
}
}
@Override
public void afterApplicationStart() {
List<Class<?>> jobs = new ArrayList<Class<?>>();
for (Class clazz : Play.classloader.getAllClasses()) {
if (Job.class.isAssignableFrom(clazz)) {
jobs.add(clazz);
}
}
scheduledJobs = new ArrayList<Job>();
for (final Class<?> clazz : jobs) {
// @OnApplicationStart
if (clazz.isAnnotationPresent(OnApplicationStart.class)) {
// check if we're going to run the job sync or async
OnApplicationStart appStartAnnotation = clazz.getAnnotation(OnApplicationStart.class);
if (!appStartAnnotation.async()) {
// run job sync
try {
Job<?> job = ((Job<?>) clazz.newInstance());
scheduledJobs.add(job);
job.run();
if (job.wasError) {
if (job.lastException != null) {
throw job.lastException;
}
throw new RuntimeException("@OnApplicationStart Job has failed");
}
} catch (InstantiationException e) {
throw new UnexpectedException("Job could not be instantiated", e);
} catch (IllegalAccessException e) {
throw new UnexpectedException("Job could not be instantiated", e);
} catch (Throwable ex) {
if (ex instanceof PlayException) {
throw (PlayException) ex;
}
throw new UnexpectedException(ex);
}
} else {
// run job async
try {
Job<?> job = ((Job<?>) clazz.newInstance());
scheduledJobs.add(job);
// start running job now in the background
@SuppressWarnings("unchecked")
Callable<Job> callable = (Callable<Job>) job;
executor.submit(callable);
} catch (InstantiationException ex) {
throw new UnexpectedException("Cannot instanciate Job " + clazz.getName());
} catch (IllegalAccessException ex) {
throw new UnexpectedException("Cannot instanciate Job " + clazz.getName());
}
}
}
// @On
if (clazz.isAnnotationPresent(On.class)) {
try {
Job<?> job = ((Job<?>) clazz.newInstance());
scheduledJobs.add(job);
scheduleForCRON(job);
} catch (InstantiationException ex) {
throw new UnexpectedException("Cannot instanciate Job " + clazz.getName());
} catch (IllegalAccessException ex) {
throw new UnexpectedException("Cannot instanciate Job " + clazz.getName());
}
}
// @Every
if (clazz.isAnnotationPresent(Every.class)) {
try {
Job job = (Job) clazz.newInstance();
scheduledJobs.add(job);
String value = job.getClass().getAnnotation(Every.class).value();
if (value.startsWith("cron.")) {
value = Play.configuration.getProperty(value);
}
value = Expression.evaluate(value, value).toString();
if (!"never".equalsIgnoreCase(value)) {
executor.scheduleWithFixedDelay(
job, Time.parseDuration(value), Time.parseDuration(value), TimeUnit.SECONDS);
}
} catch (InstantiationException ex) {
throw new UnexpectedException("Cannot instanciate Job " + clazz.getName());
} catch (IllegalAccessException ex) {
throw new UnexpectedException("Cannot instanciate Job " + clazz.getName());
}
}
}
}
/**
* set a RenderResult in cache
*
* @param key
* @param rr
* @param ttl
*/
public static void set(String key, RenderResult rr, String ttl) {
int tl = Time.parseDuration(ttl) * 1000;
CachedItemStatus cachedItemStatus = new CachedItemStatus(tl);
cacheset(key, ttl, new CachedRenderResult(cachedItemStatus, rr));
// cacheTacker.put(key, cachedItemStatus);
}
@Override
public void afterApplicationStart() {
List<Class> jobs = new ArrayList();
for (Class clazz : Play.classloader.getAllClasses()) {
if (Job.class.isAssignableFrom(clazz)) {
jobs.add(clazz);
}
}
scheduledJobs = new ArrayList();
for (final Class clazz : jobs) {
// @OnApplicationStart
if (clazz.isAnnotationPresent(OnApplicationStart.class)) {
try {
Job job = ((Job) clazz.newInstance());
scheduledJobs.add(job);
job.run();
if (job.wasError) {
if (job.lastException != null) {
throw job.lastException;
}
throw new RuntimeException("@OnApplicationStart Job has failed");
}
} catch (InstantiationException e) {
throw new UnexpectedException("Job could not be instantiated", e);
} catch (IllegalAccessException e) {
throw new UnexpectedException("Job could not be instantiated", e);
} catch (Throwable ex) {
if (ex instanceof PlayException) {
throw (PlayException) ex;
}
throw new UnexpectedException(ex);
}
}
// @On
if (clazz.isAnnotationPresent(On.class)) {
try {
Job job = ((Job) clazz.newInstance());
scheduledJobs.add(job);
scheduleForCRON(job);
} catch (InstantiationException ex) {
throw new UnexpectedException("Cannot instanciate Job " + clazz.getName());
} catch (IllegalAccessException ex) {
throw new UnexpectedException("Cannot instanciate Job " + clazz.getName());
}
}
// @Every
if (clazz.isAnnotationPresent(Every.class)) {
try {
Job job = (Job) clazz.newInstance();
scheduledJobs.add(job);
String value = ((Every) (job.getClass().getAnnotation(Every.class))).value();
executor.scheduleWithFixedDelay(
job, Time.parseDuration(value), Time.parseDuration(value), TimeUnit.SECONDS);
} catch (InstantiationException ex) {
throw new UnexpectedException("Cannot instanciate Job " + clazz.getName());
} catch (IllegalAccessException ex) {
throw new UnexpectedException("Cannot instanciate Job " + clazz.getName());
}
}
}
}
