Package com.sun.cli.jmx.cmd

Source Code of com.sun.cli.jmx.cmd.JMXCmd

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/*
* $Header: /cvs/glassfish/admin-cli/cli-api/src/java/com/sun/cli/jmx/cmd/JMXCmd.java,v 1.4 2007/05/05 05:24:50 tcfujii Exp $
* $Revision: 1.4 $
* $Date: 2007/05/05 05:24:50 $
*/

package com.sun.cli.jmx.cmd;

import java.net.MalformedURLException;

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

import com.sun.cli.jmx.support.AliasMgr;
import com.sun.cli.jmx.support.AliasMgrHashMapImpl;
import com.sun.cli.jmx.support.AliasMgrMBean;
import com.sun.cli.jmx.support.StandardAliasesIniter;
import com.sun.cli.jmx.support.CLISupport;
import com.sun.cli.jmx.support.CLISupportMBean;

import com.sun.cli.jmx.support.CLISupportMBeanProxy;
import com.sun.cli.util.stringifier.SmartStringifier;
import com.sun.cli.util.stringifier.Stringifier;
import com.sun.cli.util.stringifier.ArrayStringifier;

import com.sun.cli.jmx.spi.JMXConnectorProvider;

public abstract class JMXCmd extends CmdBase
{
  final String []  ALL_TARGET  = new String [] { "all" };
 
  public final static String  ENV_PROXY  = "PROXY";
  public final static String  ENV_CONNECTION  = "CONNECTION";
  public final static String  ENV_TARGET  = "TARGET";
  public final static String  ENV_CONNECT_NAME_BASE  = "CONNECT_";
  public final static String  ENV_ALIAS_MGR  = "ALIAS_MGR";
  public final static String  ENV_PROVIDERS  = "PROVIDERS";
 
  final static String    DEFAULT_CONNECTION_NAME = "DEFAULT";
 
  private static ConnectionMgrImpl  sConnectionMgr  = null;
  private static AliasMgrMBean    sAliasMgr    = createAliasMgr();
 
 
  JMXCmd( final CmdEnv env )
  {
    super( env );
   
    env.put( ENV_ALIAS_MGR, sAliasMgr, false);
   
    // force initialization
  }
 
 
    ConnectionMgr
  getConnectionMgr(  )
    throws Exception
  {
    initConnectionMgr();
    return( sConnectionMgr );
  }
 
    void
  initConnectionMgr(  )
    throws IllegalAccessException, InstantiationException, ClassNotFoundException
  {
    if ( sConnectionMgr != null )
      return;
     
    sConnectionMgr  = new ConnectionMgrImpl( );
   
    final String  providersString  = ((String)envGet( ENV_PROVIDERS, "")).trim();
   
    if ( providersString != null && providersString.length() != 0 )
    {
      final String []  providers  = providersString.split( "," );
     
      for( int i = 0; i < providers.length; ++i )
      {
        try
        {
          final Class  theClass  = Class.forName( providers[ i ] );
       
          sConnectionMgr.addProvider( theClass );
          println( "Added JMXConnectorProvider: " + providers[ i ] );
        }
        catch( Exception e )
        {
          printError( "WARNING: Can't add JMXConnectorProvider: " + providers[ i ] );
        }
      }
    }
  }
 
 
    static AliasMgrMBean
  createAliasMgr()
  {
    final AliasMgrHashMapImpl  aliasMgrImpl  = new AliasMgrHashMapImpl();
    final AliasMgr        aliasMgr    = new AliasMgr( aliasMgrImpl );
   
   
    try
    {
      aliasMgrImpl.load( JMXAdminFileNames.getAliasesFile() );
      StandardAliasesIniter.init( aliasMgr );
    }
    catch( Exception e )
    {
      StandardAliasesIniter.init( aliasMgr );
      System.err.println( "can't load aliases file: " + e.getMessage());
     
    }
    return( aliasMgr );
  }
 
 
    private CLISupportMBean
  getCLISupport( MBeanServerConnection conn )
    throws Exception
  {
    final CLISupportMBean    cliSupport    = new CLISupport( conn, sAliasMgr);
   
    return( cliSupport );
  }
 
    String
  connectionNameToEnvName( String connectionName )
  {
    return( ENV_CONNECT_NAME_BASE + connectionName );
  }
 
    String
  envNameToConnectionName( String envName )
  {
    return( envName.substring( ENV_CONNECT_NAME_BASE.length(), envName.length() ) );
  }
 
    CLISupportMBeanProxy
  setProxy( String name, ConnectInfo connectInfo )
    throws Exception
  {
    JMXConnector  jmxConnector  = null;
   
    try
    {
      jmxConnector  = getConnectionMgr().connect( name, connectInfo );
    }
    catch( java.io.IOException e )
    {
      throw new Exception( e.getMessage() + " (" + connectInfo.toString() + ")", e);
    }
   
    final MBeanServerConnection  managedServer  = jmxConnector.getMBeanServerConnection();

    final CLISupportMBean    cliSupport    = getCLISupport( managedServer );
     
    final CLISupportMBeanProxy  proxy  = new CLISupportMBeanProxy( sAliasMgr, cliSupport );
     
    envPut( connectionNameToEnvName( name ), connectInfo.toString(), true );
    envPut( ENV_PROXY, proxy, false );
    envPut( ENV_CONNECTION, managedServer, false );
   
    return( proxy );
  }
 

    void
  clearProxy(  )
  {
    envRemove( ENV_PROXY );
  }

    CLISupportMBeanProxy
  establishProxy( String name, ConnectInfo connectInfo  )
    throws Exception
  {
    CLISupportMBeanProxy  proxy  = null;
   
    proxy  = setProxy( name, connectInfo );
   
    final String host    = connectInfo.getParam( JMXConnectorProvider.HOST );
    final String port    = connectInfo.getParam( JMXConnectorProvider.PORT );
    String protocol      = connectInfo.getParam( JMXConnectorProvider.PROTOCOL );
    if ( protocol == null )
    {
      protocol   = "jmxmp";
    }
   
    println( "Established connection to " +
      host + ":" + port + " using " + protocol );

    return( proxy );
  }
 
 
    CLISupportMBeanProxy
  establishProxy( ConnectInfo connectInfo )
    throws Exception
  {
    final String  envName  = connectionNameToEnvName( DEFAULT_CONNECTION_NAME );
   
    final CLISupportMBeanProxy  proxy  = establishProxy( envName , connectInfo );
   
    return( proxy );
  }
 
    void
  establishProxy(  )
    throws Exception
  {
    if ( envGet( ENV_PROXY ) == null )
    {
      final String  envName  = connectionNameToEnvName( DEFAULT_CONNECTION_NAME );
   
      final String connectString  = (String)envGet( envName );
      if ( connectString != null )
      {
        establishProxy( new ConnectInfo( connectString ) );
      }
    }
   
    if ( envGet( ENV_PROXY ) == null )
    {
      throw new java.io.IOException( "can't connect" );
    }
  }
 
    CLISupportMBeanProxy
  getProxy()
  {
    final CLISupportMBeanProxy  proxy  = (CLISupportMBeanProxy)envGet( ENV_PROXY );
   
    return( proxy );
  }
 
    MBeanServerConnection
  getConnection()
  {
    final MBeanServerConnection  conn  = (MBeanServerConnection)envGet( ENV_CONNECTION );
   
    return( conn );
  }
 
    AliasMgrMBean
  getAliasMgr()
  {
    final AliasMgrMBean  proxy  = (AliasMgrMBean)envGet( ENV_ALIAS_MGR );
   
    return( proxy );
  }
 
    void
  preExecute()
    throws Exception
  {
    getConnectionMgr();
    super.preExecute();
  }
 
    void
  handleException( final Exception e )
  {
    super.handleException( e );
 
    if ( e instanceof java.io.IOException )
    {
      clearProxy();
    }
  }
 
 
    String []
  getEnvTargets()
  {
    final String  targetsEnv  = (String)envGet( ENV_TARGET );
    if ( targetsEnv == null )
      return( null );
   
    // convert to String []
    final String []  targets  = (String [])
              TargetPersister.DEFAULT.asObject( targetsEnv );
   
    return( targets );
  }
 
    void
  putEnvTargets( String [] targets )
  {
    // put targets into environment
    final String  targetsStr  = TargetPersister.DEFAULT.asString( targets );
    envPut( ENV_TARGET, targetsStr, true);
  }
 
    String []
  getTargets()
  {
    String []   targets  = getOperands();
   
    if ( targets.length == 0 )
    {
      targets  = getEnvTargets();
    }
   
    return( targets );
  }
 
 
  final static class TargetPersister implements com.sun.cli.util.ValuePersister
  {
    final static TargetPersister  DEFAULT  = new TargetPersister();
    final static String        TARGET_DELIM  = " ";
   
      public String
    asString( Object value )
    {
      return( ArrayStringifier.stringify( (String [])value, TARGET_DELIM ) );
    }
   
      public Object
    asObject( String value )
    {
      return( value.split( TARGET_DELIM ) );
    }
  }
};

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