Examples with SafeTimerTask hudson.triggers.SafeTimerTask used on opensource projects

Example 1 with SafeTimerTask

use of hudson.triggers.SafeTimerTask in project hudson-2.x by hudson.

the class WebAppMain method contextInitialized.

/**
     * Creates the sole instance of {@link Hudson} and register it to the {@link ServletContext}.
     */
public void contextInitialized(ServletContextEvent event) {
    try {
        final ServletContext context = event.getServletContext();
        // Install the current servlet context, unless its already been set
        final WebAppController controller = WebAppController.get();
        try {
            // Attempt to set the context
            controller.setContext(context);
        } catch (IllegalStateException e) {
        // context already set ignore
        }
        // Setup the default install strategy if not already configured
        try {
            controller.setInstallStrategy(new DefaultInstallStrategy());
        } catch (IllegalStateException e) {
        // strategy already set ignore
        }
        // use the current request to determine the language
        LocaleProvider.setProvider(new LocaleProvider() {

            public Locale get() {
                Locale locale = null;
                StaplerRequest req = Stapler.getCurrentRequest();
                if (req != null)
                    locale = req.getLocale();
                if (locale == null)
                    locale = Locale.getDefault();
                return locale;
            }
        });
        // quick check to see if we (seem to) have enough permissions to run. (see #719)
        JVM jvm;
        try {
            jvm = new JVM();
            new URLClassLoader(new URL[0], getClass().getClassLoader());
        } catch (SecurityException e) {
            controller.install(new InsufficientPermissionDetected(e));
            return;
        }
        try {
            // remove Sun PKCS11 provider if present. See http://wiki.hudson-ci.org/display/HUDSON/Solaris+Issue+6276483
            Security.removeProvider("SunPKCS11-Solaris");
        } catch (SecurityException e) {
        // ignore this error.
        }
        installLogger();
        File dir = getHomeDir(event);
        try {
            dir = dir.getCanonicalFile();
        } catch (IOException e) {
            dir = dir.getAbsoluteFile();
        }
        final File home = dir;
        home.mkdirs();
        LOGGER.info("Home directory: " + home);
        // check that home exists (as mkdirs could have failed silently), otherwise throw a meaningful error
        if (!home.exists()) {
            controller.install(new NoHomeDir(home));
            return;
        }
        // make sure that we are using XStream in the "enhanced" (JVM-specific) mode
        if (jvm.bestReflectionProvider().getClass() == PureJavaReflectionProvider.class) {
            // nope
            controller.install(new IncompatibleVMDetected());
            return;
        }
        // make sure this is servlet 2.4 container or above
        try {
            ServletResponse.class.getMethod("setCharacterEncoding", String.class);
        } catch (NoSuchMethodException e) {
            controller.install(new IncompatibleServletVersionDetected(ServletResponse.class));
            return;
        }
        // make sure that we see Ant 1.7
        try {
            FileSet.class.getMethod("getDirectoryScanner");
        } catch (NoSuchMethodException e) {
            controller.install(new IncompatibleAntVersionDetected(FileSet.class));
            return;
        }
        // make sure AWT is functioning, or else JFreeChart won't even load.
        if (ChartUtil.awtProblemCause != null) {
            controller.install(new AWTProblem(ChartUtil.awtProblemCause));
            return;
        }
        // check that and report an error
        try {
            File f = File.createTempFile("test", "test");
            f.delete();
        } catch (IOException e) {
            controller.install(new NoTempDir(e));
            return;
        }
        // try to correct it
        try {
            TransformerFactory.newInstance();
        // if this works we are all happy
        } catch (TransformerFactoryConfigurationError x) {
            // no it didn't.
            LOGGER.log(Level.WARNING, "XSLT not configured correctly. Hudson will try to fix this. See http://issues.apache.org/bugzilla/show_bug.cgi?id=40895 for more details", x);
            System.setProperty(TransformerFactory.class.getName(), "com.sun.org.apache.xalan.internal.xsltc.trax.TransformerFactoryImpl");
            try {
                TransformerFactory.newInstance();
                LOGGER.info("XSLT is set to the JAXP RI in JRE");
            } catch (TransformerFactoryConfigurationError y) {
                LOGGER.log(Level.SEVERE, "Failed to correct the problem.");
            }
        }
        installExpressionFactory(event);
        controller.install(new HudsonIsLoading());
        new Thread("hudson initialization thread") {

            @Override
            public void run() {
                try {
                    // Creating of the god object performs most of the booting muck
                    Hudson hudson = new Hudson(home, context);
                    // once its done, hook up to stapler and things should be ready to go
                    controller.install(hudson);
                    // trigger the loading of changelogs in the background,
                    // but give the system 10 seconds so that the first page
                    // can be served quickly
                    Trigger.timer.schedule(new SafeTimerTask() {

                        public void doRun() {
                            User.getUnknown().getBuilds();
                        }
                    }, 1000 * 10);
                } catch (Error e) {
                    LOGGER.log(Level.SEVERE, "Failed to initialize Hudson", e);
                    controller.install(new HudsonFailedToLoad(e));
                    throw e;
                } catch (Exception e) {
                    LOGGER.log(Level.SEVERE, "Failed to initialize Hudson", e);
                    controller.install(new HudsonFailedToLoad(e));
                }
            }
        }.start();
    } catch (Error e) {
        LOGGER.log(Level.SEVERE, "Failed to initialize Hudson", e);
        throw e;
    } catch (RuntimeException e) {
        LOGGER.log(Level.SEVERE, "Failed to initialize Hudson", e);
        throw e;
    }
}

Example 2 with SafeTimerTask

use of hudson.triggers.SafeTimerTask in project hudson-2.x by hudson.

the class DoubleLaunchChecker method schedule.

/**
     * Schedules the next execution.
     */
public void schedule() {
    // randomize the scheduling so that multiple Hudson instances will write at the file at different time
    long MINUTE = 1000 * 60;
    Trigger.timer.schedule(new SafeTimerTask() {

        protected void doRun() {
            execute();
        }
    }, (random.nextInt(30) + 60) * MINUTE);
}