Examples with ManagementService org.apache.derby.iapi.services.jmx.ManagementService used on opensource projects

Example 1 with ManagementService

use of org.apache.derby.iapi.services.jmx.ManagementService in project derby by apache.

the class ConcurrentCache method deregisterMBean.

@Override
public void deregisterMBean() {
    if (mbean != null) {
        ManagementService managementService = (ManagementService) getSystemModule(Module.JMX);
        if (managementService != null) {
            managementService.unregisterMBean(mbean);
        }
        mbean = null;
    }
}

Example 2 with ManagementService

use of org.apache.derby.iapi.services.jmx.ManagementService in project derby by apache.

the class NetworkServerControlImpl method blockingStart.

/**
 * Start a network server
 *
 * @param consoleWriter   PrintWriter to which server console will be
 *                        output. Null will disable console output.
 *
 * @exception Exception throws an exception if an error occurs
 */
public void blockingStart(PrintWriter consoleWriter) throws Exception {
    startNetworkServer();
    setLogWriter(consoleWriter);
    cloudscapeLogWriter = Monitor.getStream().getPrintWriter();
    if (SanityManager.DEBUG && debugOutput) {
        memCheck.showmem();
        mc = new memCheck(200000);
        mc.start();
    }
    // Open a server socket listener
    try {
        serverSocket = AccessController.doPrivileged(new PrivilegedExceptionAction<ServerSocket>() {

            public ServerSocket run() throws IOException {
                return createServerSocket();
            }
        });
    } catch (PrivilegedActionException e) {
        Exception e1 = e.getException();
        // throws an exception when the severity is S (or U).
        if (e1 instanceof UnknownHostException) {
            consolePropertyMessage("DRDA_UnknownHost.S", hostArg);
        } else if (e1 instanceof IOException) {
            consolePropertyMessage("DRDA_ListenPort.S", new String[] { Integer.toString(portNumber), hostArg, // string to the user.
            e1.toString() });
        } else {
            throw e1;
        }
    } catch (Exception e) {
        // If we find other (unexpected) errors, we ultimately exit--so make
        // sure we print the error message before doing so (Beetle 5033).
        throwUnexpectedException(e);
    }
    switch(getSSLMode()) {
        default:
        case SSL_OFF:
            consolePropertyMessage("DRDA_Ready.I", new String[] { Integer.toString(portNumber), att_srvclsnm, versionString });
            break;
        case SSL_BASIC:
            consolePropertyMessage("DRDA_SSLReady.I", new String[] { Integer.toString(portNumber), att_srvclsnm, versionString });
            consolePropertyMessage("DRDA_EnabledProtocols.I", new String[] { getEnabledProtocols((SSLServerSocket) serverSocket), att_srvclsnm, versionString });
            break;
        case SSL_PEER_AUTHENTICATION:
            consolePropertyMessage("DRDA_SSLClientAuthReady.I", new String[] { Integer.toString(portNumber), att_srvclsnm, versionString });
            consolePropertyMessage("DRDA_EnabledProtocols.I", new String[] { getEnabledProtocols((SSLServerSocket) serverSocket), att_srvclsnm, versionString });
            break;
    }
    // First, register any MBeans. We do this before we start accepting
    // connections from the clients to ease testing of JMX (DERBY-3689).
    // This way we know that once we can connect to the network server,
    // the MBeans will be available.
    ManagementService mgmtService = ((ManagementService) getSystemModule(Module.JMX));
    final Object versionMBean = mgmtService.registerMBean(new Version(getNetProductVersionHolder(), SystemPermission.SERVER), VersionMBean.class, "type=Version,jar=derbynet.jar");
    final Object networkServerMBean = mgmtService.registerMBean(new NetworkServerMBeanImpl(this), NetworkServerMBean.class, "type=NetworkServer");
    // We accept clients on a separate thread so we don't run into a problem
    // blocking on the accept when trying to process a shutdown
    final ClientThread clientThread = AccessController.doPrivileged(new PrivilegedExceptionAction<ClientThread>() {

        public ClientThread run() throws Exception {
            return new ClientThread(thisControl, serverSocket);
        }
    });
    clientThread.start();
    try {
        // wait until we are told to shutdown or someone sends an InterruptedException
        synchronized (shutdownSync) {
            try {
                while (!shutdown) {
                    shutdownSync.wait();
                }
            } catch (InterruptedException e) {
                shutdown = true;
            }
        }
        try {
            AccessController.doPrivileged(new PrivilegedAction<Void>() {

                public Void run() {
                    // Need to interrupt the memcheck thread if it is sleeping.
                    if (mc != null)
                        mc.interrupt();
                    // interrupt client thread
                    clientThread.interrupt();
                    return null;
                }
            });
        } catch (Exception exception) {
            consolePrintAndIgnore("DRDA_UnexpectedException.S", exception, true);
        }
        // Close out the sessions
        synchronized (sessionTable) {
            for (Session session : sessionTable.values()) {
                try {
                    session.close();
                } catch (Exception exception) {
                    consolePrintAndIgnore("DRDA_UnexpectedException.S", exception, true);
                }
            }
        }
        synchronized (threadList) {
            // interupt any connection threads still active
            for (final DRDAConnThread threadi : threadList) {
                try {
                    threadi.close();
                    AccessController.doPrivileged(new PrivilegedAction<Void>() {

                        public Void run() {
                            threadi.interrupt();
                            return null;
                        }
                    });
                } catch (Exception exception) {
                    consolePrintAndIgnore("DRDA_UnexpectedException.S", exception, true);
                }
            }
            threadList.clear();
        }
        // close the listener socket
        try {
            serverSocket.close();
        } catch (IOException e) {
            consolePropertyMessage("DRDA_ListenerClose.S", true);
        } catch (Exception exception) {
            consolePrintAndIgnore("DRDA_UnexpectedException.S", exception, true);
        }
        // they can close down
        try {
            synchronized (runQueue) {
                runQueue.notifyAll();
            }
        } catch (Exception exception) {
            consolePrintAndIgnore("DRDA_UnexpectedException.S", exception, true);
        }
        // And now unregister any MBeans.
        try {
            mgmtService.unregisterMBean(versionMBean);
            mgmtService.unregisterMBean(networkServerMBean);
        } catch (Exception exception) {
            consolePrintAndIgnore("DRDA_UnexpectedException.S", exception, true);
        }
        if (shutdownDatabasesOnShutdown) {
            // Shutdown Derby
            try {
                // tell driver to shutdown the engine
                if (cloudscapeDriver != null) {
                    // DERBY-2109: pass user credentials for driver shutdown
                    final Properties p = new Properties();
                    if (userArg != null) {
                        p.setProperty("user", userArg);
                    }
                    if (passwordArg != null) {
                        p.setProperty("password", passwordArg);
                    }
                    // DERBY-6224: DriverManager.deregisterDriver() requires
                    // an extra permission in JDBC 4.2 and later. Invoke
                    // system shutdown with deregister=false to avoid the
                    // need for the extre permission in the default server
                    // policy. Since the JVM is about to terminate, we don't
                    // care whether the JDBC driver is deregistered.
                    cloudscapeDriver.connect("jdbc:derby:;shutdown=true;deregister=false", p);
                }
            } catch (SQLException sqle) {
                // If we can't shutdown Derby, perhaps, authentication has
                // failed or System Privileges weren't granted. We will just
                // print a message to the console and proceed.
                String expectedState = StandardException.getSQLStateFromIdentifier(SQLState.CLOUDSCAPE_SYSTEM_SHUTDOWN);
                if (!expectedState.equals(sqle.getSQLState())) {
                    consolePropertyMessage("DRDA_ShutdownWarning.I", sqle.getMessage());
                }
            } catch (Exception exception) {
                consolePrintAndIgnore("DRDA_UnexpectedException.S", exception, true);
            }
        }
        consolePropertyMessage("DRDA_ShutdownSuccess.I", new String[] { att_srvclsnm, versionString });
    } catch (Exception ex) {
        try {
            // If the console printing is not available,  then we have
            // a simple stack trace print below to atleast print some
            // exception info
            consolePrintAndIgnore("DRDA_UnexpectedException.S", ex, true);
        } catch (Exception e) {
        }
        ex.printStackTrace();
    }
}