Glassfish example source code file (Demo.java)

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Java - Glassfish tags/keywords

amxproxy, amxproxy, demo, exception, io, list, list, locale, management, mbeanserverconnection, mbeanslistener, net, network, set, set, string, string, t, util

The Glassfish Demo.java source code

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 *
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 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
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 * file and include the License file at packager/legal/LICENSE.txt.
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 * GPL Classpath Exception:
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 * exception as provided by Oracle in the GPL Version 2 section of the License
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 *
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 */

package amxtest;

import java.util.Properties;
import java.util.Set;
import java.util.HashSet;
import java.util.List;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Map;

import java.net.MalformedURLException;
import java.io.IOException;

import javax.management.ObjectName;
import javax.management.Attribute;
import javax.management.AttributeList;
import javax.management.Notification;
import javax.management.NotificationListener;
import javax.management.MBeanServerDelegateMBean;
import javax.management.MBeanServerNotification;
import javax.management.MBeanServerConnection;

import javax.management.remote.JMXConnector;
import javax.management.remote.JMXConnectorFactory;
import javax.management.remote.JMXServiceURL;

import org.glassfish.admin.amx.base.*;
import org.glassfish.admin.amx.core.*;
import org.glassfish.admin.amx.core.proxy.ProxyFactory;
import org.glassfish.admin.amx.config.AMXConfigProxy;
import org.glassfish.admin.amx.intf.config.*;
import org.glassfish.admin.amx.util.TimingDelta;
import org.glassfish.admin.amx.util.ListUtil;
import org.glassfish.admin.amx.util.ExceptionUtil;
import org.glassfish.admin.amx.util.jmx.JMXUtil;


import org.glassfish.external.amx.AMXGlassfish;

/** Demonstration AMX java client */
public final class Demo {
    final String  mAdminUser;
    final String  mAdminPassword;
    final String  mHost;
    final int     mPort;
    final boolean mDebug;
    private final MBeanServerConnection mMBeanServerConnection;

    private final ProxyFactory mProxyFactory;
    private final DomainRoot   mDomainRoot;
    private final Domain       mDomainConfig;
    
    private final MBeansListener  mListener;
    
    private final boolean   mPrintln;

    private final Query mQueryMgr;

    /**
        Get a connection to the server, and setup various high-level MBean proxies.
     */
    Demo(
        final boolean emitMessages,
        final String host,
        final String port,
        final String user,
        final String password ) throws Exception
    {
        mPrintln = emitMessages;
        
        mDebug = true;
        mHost = host;
        mPort = Integer.parseInt(port);
        mAdminUser     = user;
        mAdminPassword = password;
        
        mMBeanServerConnection = _getMBeanServerConnection(mHost, mPort);
        
        mProxyFactory = ProxyFactory.getInstance(mMBeanServerConnection);
        mDomainRoot   = mProxyFactory.getDomainRootProxy();
        mQueryMgr     = mDomainRoot.getQueryMgr();
        mDomainConfig = mDomainRoot.child(Domain.class);
            
        enableMonitoring();
        
        mListener = new MBeansListener(mMBeanServerConnection, mDomainRoot.objectName().getDomain());
        mListener.startListening();
        
        println( "Demo: " + host + ":" + port + " as {" + user + "," + password + "}" );
    }
    
    private static String getArg(final String name, final String defaultValue, final String[] args )
    {
        String value = defaultValue;
        for( final String arg : args )
        {
            if ( arg == null ) continue;
            
            if ( arg.startsWith(name) || arg.startsWith("--" + name) )
            {
                final int idx = arg.indexOf("=");
                value = arg.substring(idx+1);
                break;
            }
        }
        return value;
    }
    
    /**
        Run the demo.
     */
    public static void runDemo( final boolean emitMessages, final String[] args )
    {
        final String host = getArg("host", "localhost", args);
        final String port = getArg("port", "8686", args);
        final String user = getArg("user", "admin", args);
        final String password = getArg("password", "changeit", args);
        
        try
        {
            final Demo demo = new Demo(emitMessages, host, port, user, password);
            
            demo.run();
        }
        catch( final Throwable t )
        {
            t.printStackTrace();
        }
    }
    
    public static void main( final String[] args )
    {
        runDemo( true, args );
    }
    
    private void run()
    {
        final Set<AMXProxy>  amxMBeans = mQueryMgr.queryAll();
        println( "AMX MBeans: " + amxMBeans.size() );
        println( "AMX config MBeans: " + getAllConfig().size() );
        
        // set an Attribute via getter/setter
        String locale = mDomainConfig.getLocale();
        mDomainConfig.setLocale("GreekSpeak");
        println( "Changed locale from " + locale + " to " + mDomainConfig.getLocale() + ", then back.");
        mDomainConfig.setLocale(locale);
        
        // this is how to do the same attribute generically
        try
        {
        locale = (String)mDomainConfig.extra().getAttribute("Locale");
        mDomainConfig.extra().setAttribute( new Attribute("Locale", "GreekSpeak"));
        mDomainConfig.extra().setAttribute( new Attribute("Locale", locale)); // restore it
        }
        catch( Exception e )
        {
            e.printStackTrace();
        }
        
    }    
            
    /** enable monitoring to HIGH for all available systems so that MBeans in those systems get tested */
    protected synchronized void enableMonitoring() throws Exception
    {
        for( final Config config : mDomainConfig.getConfigs().getConfig().values() )
        {
            final MonitoringService mon = config.getMonitoringService();
            if ( mon == null )
            {
                // this can happen for temporary configs
                assert ! config.getName().equals("server-config");
                //debug( "No MonitoringService in Config: " + config.objectName() );
                continue;
            }
            
            final AttributeList  prevLevels =
                ModuleMonitoringLevels.Helper.setAllMonitoringLevel( mon.getModuleMonitoringLevels(), ModuleMonitoringLevels.HIGH );
        }
    }
    
    /** get all AMX MBeans that were found when the test started
    Caller should use the QueryMgr if a fresh set is needed */
    protected Set<AMXProxy> getAllAMX()
    {
        final Set<AMXProxy> allAMX = mQueryMgr.queryAll();
        assert allAMX.size() >= 30;
        return allAMX;  
    }

    /** get all AMX MBeans with the specified interface */
    protected <T> Set getAll(final Class intf)
    {
        return getAll(getAllAMX(), intf);
    }

    /** Filter all AMXProxy with the specified interface */
    protected <T> Set getAll(final Set all, final Class intf)
    {
        final Set<T> result = new HashSet();
        for (final AMXProxy amx : all)
        {
            if (intf.isAssignableFrom(amx.getClass()))
            {
                result.add(intf.cast(amx));
            }
        }
        return result;
    }
    
    private static MBeanServerConnection _getMBeanServerConnection(final String host, final int port)
            throws MalformedURLException, IOException
    {
        final long start = System.currentTimeMillis();
        
        final String urlStr = "service:jmx:rmi:///jndi/rmi://" + host + ":" + port + "/jmxrmi";
        final JMXServiceURL url = new JMXServiceURL(urlStr);

        final JMXConnector jmxConn = JMXConnectorFactory.connect(url);
        //debug( "Demo: connecting to: " + url );
        final MBeanServerConnection conn = jmxConn.getMBeanServerConnection();
        conn.getDomains();	// sanity check
        try
        {
            final ObjectName domainRootObjectName = AMXGlassfish.DEFAULT.bootAMX(conn);
        }
        catch( final Exception e )
        {
            System.err.println( ExceptionUtil.toString(ExceptionUtil.getRootCause(e)) );
        }
        //debug( "Demo: got connection, verified connectivity: " + (System.currentTimeMillis() - start));
        return conn;
    }

    /** Find all AMX MBeans of the specified type */
    protected Set<AMXProxy> findAllContainingType( final String type )
    {
        final Set<AMXProxy> all = mQueryMgr.queryAll();
        final Set<AMXProxy> parentsWith = new HashSet();
        for( final AMXProxy amx : all )
        {
            if ( amx.type().equals(type) )
            {
                final AMXProxy parent = amx.parent();
                parentsWith.add(parent);
            }
        }
        return parentsWith;
    }
    
    /** Get all AMX MBeans that are descendendts of the specified MBean */
    protected <T extends AMXProxy> List getAllDescendents( final AMXProxy top, final Class clazz)
    {
        final AMXProxy[]  a = mQueryMgr.queryDescendants( top.objectName() );
        final List<AMXProxy>  list = ListUtil.newListFromArray(a);
        
        return Util.asProxyList( list, clazz );
    }
    
    /** Get all config MBeans */
    List<AMXConfigProxy> getAllConfig()
    {
        return getAllDescendents( mDomainConfig, AMXConfigProxy.class);
    }
    
    /** Get all monitoring MBeans */
    List<AMXProxy> getAllMonitoring()
    {
        return getAllDescendents( mDomainRoot.getMonitoringRoot(), AMXProxy.class);
    }


    /**
        Listen to MBeans for Notifications.
     */
    final class MBeansListener implements NotificationListener
    {
        private final MBeanServerConnection mServer;
        private final String                mDomain;
        
        private final List<ObjectName> mRegistered = Collections.synchronizedList(new ArrayList());
        private final List<ObjectName> mUnregistered = Collections.synchronizedList(new ArrayList());
        
        public MBeansListener(final MBeanServerConnection server, final String domain)
        {
            mServer  = server;
            mDomain  = domain;
        }
        public void startListening()
        {
            final ObjectName delegate = JMXUtil.newObjectName( JMXUtil.MBEAN_SERVER_DELEGATE );
            try
            {
                mServer.addNotificationListener( delegate, this, null, null);
            }
            catch( final Exception e )
            {
                throw new RuntimeException(e);
            }
        }
        
        public void handleNotification(
            final Notification notif,
            final Object handback) 
        {
            if ( ! (notif instanceof MBeanServerNotification) )
            {
                return;
            }
            final MBeanServerNotification mbs = (MBeanServerNotification)notif;
            final ObjectName objectName = mbs.getMBeanName();
            if  ( "*".equals(mDomain) || mDomain.equals(objectName.getDomain()) )
            {
                if ( mbs.getType().equals(MBeanServerNotification.REGISTRATION_NOTIFICATION ) )
                {
                   // debug( "Registered: " + objectName );
                    mRegistered.add( objectName );
                }
                else if ( mbs.getType().equals(MBeanServerNotification.UNREGISTRATION_NOTIFICATION ) )
                {
                   // debug( "Unregistered: " + objectName );
                    mUnregistered.add( objectName );
                }
            }
        }
    }
    
    

    protected void debug(final String s) {
        System.out.println("" + s);
    }
    
    protected void println(final String s) {
        if ( mPrintln ) {
            System.out.println("" + s);
        }
    }
    
    protected void warning(final String s) {
        if ( mPrintln ) {
            System.out.println("" + s);
        }
    }

}