Example usage for javax.management MBeanServer isRegistered

Introduction

In this page you can find the example usage for javax.management MBeanServer isRegistered.

Prototype

public boolean isRegistered(ObjectName name);

Source Link

Usage

From source file:org.jboss.web.tomcat.tc5.Tomcat5.java

public void stopService() throws Exception {

    String objectNameS = catalinaDomain + ":type=server";
    ObjectName objectName = new ObjectName(objectNameS);

    server.invoke(objectName, "stop", new Object[] {}, new String[] {});

    server.invoke(objectName, "destroy", new Object[] {}, new String[] {});

    server.unregisterMBean(objectName);/* w  w w.  j  a v  a2  s . c om*/

    MBeanServer server2 = server;

    // deregister with MainDeployer
    mainDeployer.removeDeployer(thisProxy);

    // Unregister any remaining jboss.web or Catalina MBeans
    ObjectName queryObjectName = new ObjectName(catalinaDomain + ":*");
    Iterator iterator = server2.queryMBeans(queryObjectName, null).iterator();
    while (iterator.hasNext()) {
        ObjectInstance oi = (ObjectInstance) iterator.next();
        ObjectName toRemove = oi.getObjectName();
        // Exception: Don't unregister the service right now
        if (!"WebServer".equals(toRemove.getKeyProperty("service"))) {
            if (server2.isRegistered(toRemove)) {
                server2.unregisterMBean(toRemove);
            }
        }
    }
    queryObjectName = new ObjectName("Catalina:*");
    iterator = server2.queryMBeans(queryObjectName, null).iterator();
    while (iterator.hasNext()) {
        ObjectInstance oi = (ObjectInstance) iterator.next();
        ObjectName name = oi.getObjectName();
        server2.unregisterMBean(name);
    }

}

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From source file:io.fabric8.api.jmx.FabricManager.java

public void registerMBeanServer(MBeanServer mbeanServer) {
    try {//from  www.j  av  a2s  .  c o m
        ObjectName name = getObjectName();
        if (!mbeanServer.isRegistered(name)) {
            mbeanServer.registerMBean(this, name);
        }
    } catch (Exception e) {
        LOG.warn("An error occured during mbean server registration: " + e, e);
    }
}

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From source file:org.red5.server.tomcat.TomcatLoader.java

/**
 * Starts a web application and its red5 (spring) component. This is
 * basically a stripped down version of init().
 * /*from   ww  w. ja  va 2 s  .c  o m*/
 * @return true on success
 */
public boolean startWebApplication(String applicationName) {
    log.info("Starting Tomcat - Web application");
    boolean result = false;

    //get a reference to the current threads classloader
    final ClassLoader originalClassLoader = Thread.currentThread().getContextClassLoader();

    log.debug("Webapp root: {}", webappFolder);

    // application directory
    String contextName = '/' + applicationName;

    Container ctx = null;

    if (webappFolder == null) {
        // Use default webapps directory
        webappFolder = System.getProperty("red5.root") + "/webapps";
    }
    System.setProperty("red5.webapp.root", webappFolder);
    log.info("Application root: {}", webappFolder);

    // scan for additional webapp contexts

    // Root applications directory
    File appDirBase = new File(webappFolder);

    // check if the context already exists for the host
    if ((ctx = host.findChild(contextName)) == null) {
        log.debug("Context did not exist in host");
        String webappContextDir = FileUtil.formatPath(appDirBase.getAbsolutePath(), applicationName);
        log.debug("Webapp context directory (full path): {}", webappContextDir);
        // set the newly created context as the current container
        ctx = addContext(contextName, webappContextDir);
    } else {
        log.debug("Context already exists in host");
    }

    final ServletContext servletContext = ((Context) ctx).getServletContext();
    log.debug("Context initialized: {}", servletContext.getContextPath());

    String prefix = servletContext.getRealPath("/");
    log.debug("Path: {}", prefix);

    try {
        Loader cldr = ctx.getLoader();
        log.debug("Loader delegate: {} type: {}", cldr.getDelegate(), cldr.getClass().getName());
        if (cldr instanceof WebappLoader) {
            log.debug("WebappLoader class path: {}", ((WebappLoader) cldr).getClasspath());
        }
        final ClassLoader webClassLoader = cldr.getClassLoader();
        log.debug("Webapp classloader: {}", webClassLoader);

        // get the (spring) config file path
        final String contextConfigLocation = servletContext.getInitParameter("contextConfigLocation") == null
                ? defaultSpringConfigLocation
                : servletContext.getInitParameter("contextConfigLocation");
        log.debug("Spring context config location: {}", contextConfigLocation);

        // get the (spring) parent context key
        final String parentContextKey = servletContext.getInitParameter("parentContextKey") == null
                ? defaultParentContextKey
                : servletContext.getInitParameter("parentContextKey");
        log.debug("Spring parent context key: {}", parentContextKey);

        //set current threads classloader to the webapp classloader
        Thread.currentThread().setContextClassLoader(webClassLoader);

        //create a thread to speed-up application loading
        Thread thread = new Thread("Launcher:" + servletContext.getContextPath()) {
            @SuppressWarnings("cast")
            public void run() {
                //set current threads classloader to the webapp classloader
                Thread.currentThread().setContextClassLoader(webClassLoader);

                // create a spring web application context
                XmlWebApplicationContext appctx = new XmlWebApplicationContext();
                appctx.setClassLoader(webClassLoader);
                appctx.setConfigLocations(new String[] { contextConfigLocation });

                // check for red5 context bean
                ApplicationContext parentAppCtx = null;

                if (applicationContext.containsBean(defaultParentContextKey)) {
                    parentAppCtx = (ApplicationContext) applicationContext.getBean(defaultParentContextKey);
                } else {
                    log.warn("{} bean was not found in context: {}", defaultParentContextKey,
                            applicationContext.getDisplayName());
                    // lookup context loader and attempt to get what we need from it
                    if (applicationContext.containsBean("context.loader")) {
                        ContextLoader contextLoader = (ContextLoader) applicationContext
                                .getBean("context.loader");
                        parentAppCtx = contextLoader.getContext(defaultParentContextKey);
                    } else {
                        log.debug("Context loader was not found, trying JMX");
                        MBeanServer mbs = JMXFactory.getMBeanServer();
                        // get the ContextLoader from jmx
                        ObjectName oName = JMXFactory.createObjectName("type", "ContextLoader");
                        ContextLoaderMBean proxy = null;
                        if (mbs.isRegistered(oName)) {
                            proxy = (ContextLoaderMBean) MBeanServerInvocationHandler.newProxyInstance(mbs,
                                    oName, ContextLoaderMBean.class, true);
                            log.debug("Context loader was found");
                            parentAppCtx = proxy.getContext(defaultParentContextKey);
                        } else {
                            log.warn("Context loader was not found");
                        }
                    }
                }
                if (log.isDebugEnabled()) {
                    if (appctx.getParent() != null) {
                        log.debug("Parent application context: {}", appctx.getParent().getDisplayName());
                    }
                }

                appctx.setParent(parentAppCtx);

                appctx.setServletContext(servletContext);
                // set the root webapp ctx attr on the each
                // servlet context so spring can find it later
                servletContext.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE,
                        appctx);
                appctx.refresh();
            }
        };
        thread.setDaemon(true);
        thread.start();

        result = true;
    } catch (Throwable t) {
        log.error("Error setting up context: {} due to: {}", servletContext.getContextPath(), t.getMessage());
        t.printStackTrace();
    } finally {
        //reset the classloader
        Thread.currentThread().setContextClassLoader(originalClassLoader);
    }

    return result;
}

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From source file:org.jboss.web.tomcat.service.session.JBossCacheCluster.java

/**
 * Registers this object and the tree cache (if we created it) with JMX.
 *//*from w  ww . j av  a 2 s  .  c  o m*/
private void registerMBeans() {
    try {
        MBeanServer server = getMBeanServer();

        String domain;
        if (container instanceof ContainerBase) {
            domain = ((ContainerBase) container).getDomain();
        } else {
            domain = server.getDefaultDomain();
        }

        String name = ":type=Cluster";
        if (container instanceof Host) {
            name += ",host=" + container.getName();
        } else if (container instanceof Engine) {
            name += ",engine=" + container.getName();
        }

        ObjectName clusterName = new ObjectName(domain + name);

        if (server.isRegistered(clusterName)) {
            log.warn("MBean " + clusterName + " already registered");
        } else {
            this.objectName = clusterName;
            server.registerMBean(this, objectName);
        }

    } catch (Exception ex) {
        log.error(ex.getMessage(), ex);
    }
}

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From source file:io.fabric8.api.jmx.FabricManager.java

public void unregisterMBeanServer(MBeanServer mbeanServer) {
    if (mbeanServer != null) {
        try {/*from w  w  w. j a v  a 2  s . co  m*/
            ObjectName name = getObjectName();
            if (mbeanServer.isRegistered(name)) {
                mbeanServer.unregisterMBean(name);
            }
        } catch (Exception e) {
            LOG.warn("An error occured during mbean server registration: " + e, e);
        }
    }
}

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From source file:io.fabric8.core.jmx.FabricManager.java

public void registerMBeanServer(ShutdownTracker shutdownTracker, MBeanServer mbeanServer) {
    try {//from  w  w w.j  a v a 2  s  .co  m
        ObjectName name = getObjectName();
        if (!mbeanServer.isRegistered(name)) {
            StandardMBean mbean = new StandardMBean(this, FabricManagerMBean.class);
            mbeanServer.registerMBean(mbean, name);
        }
    } catch (Exception e) {
        LOG.warn("An error occured during mbean server registration: " + e, e);
    }
}

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From source file:org.jboss.web.tomcat.tc5.session.JBossCacheCluster.java

/**
 * Registers this object and the tree cache (if we created it) with JMX.
 *///w w  w  .  j  av  a 2  s  .  c o  m
private void registerMBeans() {
    try {
        MBeanServer server = getMBeanServer();

        String domain;
        if (container instanceof ContainerBase) {
            domain = ((ContainerBase) container).getDomain();
        } else {
            domain = server.getDefaultDomain();
        }

        String name = ":type=Cluster";
        if (container instanceof Host) {
            name += ",host=" + container.getName();
        } else if (container instanceof Engine) {
            name += ",engine=" + container.getName();
        }

        ObjectName clusterName = new ObjectName(domain + name);

        if (server.isRegistered(clusterName)) {
            log.warn("MBean " + clusterName + " already registered");
        } else {
            this.objectName = clusterName;
            server.registerMBean(this, objectName);
        }

        if (treeCacheLocal) {
            // Register the treeCache
            ObjectName treeCacheName = new ObjectName(treeCacheObjectName);
            server.registerMBean(getTreeCache(), treeCacheName);
        }

    } catch (Exception ex) {
        log.error(ex.getMessage(), ex);
    }
}

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From source file:org.red5.server.scope.Scope.java

protected void unregisterJMX() {
    MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
    if (oName != null && mbs.isRegistered(oName)) {
        try {/*from w w w.ja v a  2s .c  o m*/
            mbs.unregisterMBean(oName);
        } catch (Exception e) {
            log.warn("Exception unregistering: {}", oName, e);
        }
        oName = null;
    }
}

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From source file:com.brienwheeler.lib.jmx.logging.Log4jMBeanExporter.java

private synchronized int registerMBeansInternal() {
    // protect against JMX invocation while shutting down
    if (shutdown)
        return 0;

    MBeanServer server = JmxUtils.locateMBeanServer();

    HierarchyDynamicMBean hdm;//from w  w  w . j  av a  2  s.c om
    synchronized (this.getClass()) {
        boolean usedNew = hierarchyDynamicMBean.compareAndSet(null, new HierarchyDynamicMBean());
        hdm = hierarchyDynamicMBean.get();
        if (usedNew) {
            try {
                ObjectName mbo = new ObjectName(LOG4J_HIERARCHY_DEFAULT);
                server.registerMBean(hdm, mbo);
                registeredHierarchy = true;
                // Add the root logger to the Hierarchy MBean
                hdm.addLoggerMBean(Logger.getRootLogger().getName());
            } catch (Exception e) {
                log.error("Error initializing Log4jMBeanExporter", e);
                return 0;
            }
        }
    }

    // Get each logger from the Log4J Repository and add it to
    // the Hierarchy MBean created above.
    LoggerRepository r = LogManager.getLoggerRepository();

    Enumeration<?> loggers = r.getCurrentLoggers();
    int count = 0;

    while (loggers.hasMoreElements()) {
        String name = ((Logger) loggers.nextElement()).getName();
        // this name definition copied from HierarchyDynamicMBean
        ObjectName objectName;
        try {
            objectName = new ObjectName("log4j", "logger", name);
        } catch (Exception e) {
            log.error("Error creating JMX name for " + name, e);
            continue;
        }

        if (!server.isRegistered(objectName)) {
            if (log.isDebugEnabled()) {
                log.debug("[contextInitialized]: Registering " + name);
            }
            registeredNames.add(hdm.addLoggerMBean(name));
            count++;
        }
    }

    log.debug("registered " + count + " new Log4j MBeans");
    return count;
}

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From source file:org.red5.server.scope.Scope.java

protected void registerJMX() {
    // register with jmx
    MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
    try {/*www .j av  a 2 s. c  o  m*/
        String cName = this.getClass().getName();
        if (cName.indexOf('.') != -1) {
            cName = cName.substring(cName.lastIndexOf('.')).replaceFirst("[\\.]", "");
        }
        oName = new ObjectName(String.format("org.red5.server:type=%s,name=%s", cName, name));
        // don't reregister
        if (!mbs.isRegistered(oName)) {
            mbs.registerMBean(new StandardMBean(this, ScopeMXBean.class, true), oName);
        }
    } catch (Exception e) {
        log.warn("Error on jmx registration", e);
    }
}

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