/*
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*
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* file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
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/*
* $Header: /cvs/glassfish/admin-cli/cli-api/src/java/com/sun/cli/jmx/cmd/ConfigureCmd.java,v 1.4 2007/05/05 05:24:49 tcfujii Exp $
* $Revision: 1.4 $
* $Date: 2007/05/05 05:24:49 $
*/
package com.sun.cli.jmx.cmd;
import java.util.ArrayList;
import java.util.Iterator;
import com.sun.cli.util.stringifier.IteratorStringifier;
import com.sun.cli.jmx.spi.JMXConnectorProvider;
import com.sun.cli.util.ClassUtil;
public class ConfigureCmd extends JMXCmd
{
public final static char CLASSNAME_DELIM = ',';
public
ConfigureCmd( final CmdEnv env )
{
super( env );
}
int
getNumRequiredOperands()
{
return( 0 );
}
String
getUsage()
{
return( CmdStrings.CONFIGURE_HELP.toString() );
}
public final static String NAME = "configure";
public final static String SHOW_CONFIG = "show-config";
public final static String ADD_PROVIDER = "add-provider";
public final static String REMOVE_PROVIDER = "remove-provider";
public final static String ADD_CMD = "add-cmd";
public final static String REMOVE_CMD = "remove-cmd";
private final static String [] NAMES = new String []
{
NAME, SHOW_CONFIG, ADD_PROVIDER, REMOVE_PROVIDER, ADD_CMD, REMOVE_CMD
};
public static String []
getNames( )
{
return( NAMES );
}
static private final String OPTIONS_INFO = "";
ArgHelper.OptionsInfo
getOptionInfo()
throws ArgHelper.IllegalOptionException
{
return( new ArgHelperOptionsInfo( OPTIONS_INFO ) );
}
static class ClassList
{
final ArrayList mItems;
ClassList( String providersString )
{
mItems = new ArrayList();
if ( providersString != null )
{
final String [] list = providersString.trim().split( "" + CLASSNAME_DELIM );
// first listed should be first in priority, so add to end
for ( int i = 0; i < list.length; ++i )
{
mItems.add( list[ i ] );
}
}
}
public String
toString()
{
return( IteratorStringifier.stringify( mItems.iterator(), "" + CLASSNAME_DELIM ) );
}
public String []
toArray()
{
return( (String [])mItems.toArray( new String[ mItems.size() ] ) );
}
public boolean
exists( String name )
{
return( mItems.contains( name ) );
}
public Iterator
iterator()
{
return( mItems.iterator() );
}
public void
add( String name )
{
// add it in front--last added is first in priority
mItems.add( 0, name );
}
public void
remove( String name )
{
// add it in front--last added is first in priority
mItems.remove( name );
}
}
ClassList
createProviderList()
{
return( new ClassList( (String)envGet( ENV_PROVIDERS ) ) );
}
ClassList
createCmdList()
{
return( new ClassList( (String)envGet( ENV_COMMANDS ) ) );
}
boolean
isLegalClassname( String name )
{
// should test this properly, but at least make sure it doesn't have our delim
return( name.indexOf( CLASSNAME_DELIM ) < 0 );
}
void
addProvider( )
throws Exception
{
requireNumOperands( 1, "A provider classname must be specified");
final String providerClassname = getOperands()[ 0 ];
ClassList list = createProviderList();
if ( list.exists( providerClassname ) )
{
println( "Provider already in list: " + providerClassname );
}
else if ( ! isLegalClassname( providerClassname ) )
{
printError( "Illegal classname: " + providerClassname );
}
else
{
// if this succeeds, then we'll update the env
try
{
getConnectionMgr().addProvider( Class.forName( providerClassname ) );
}
catch( Exception e )
{
printError( "WARNING: unable to instantiate provider (added to list anyway): " +
e.getMessage() );
}
list.add( providerClassname );
envPut( ENV_PROVIDERS, list.toString(), true );
}
}
void
removeProvider( )
throws Exception
{
requireNumOperands( 1, "A provider classname must be specified");
final String providerClassname = getOperands()[ 0 ];
ClassList list = createProviderList();
if ( ! list.exists( providerClassname ) )
{
println( "Provider not found: " + providerClassname );
}
else
{
// if this succeeds, then we'll update the env
try
{
final Class theClass = Class.forName( providerClassname );
getConnectionMgr().removeProvider( theClass );
}
catch( Exception e )
{
// ignore
}
list.remove( providerClassname );
envPut( ENV_PROVIDERS, list.toString(), true );
}
}
void
displayProviders( )
throws Exception
{
println( "Available providers: " );
final String list = IteratorStringifier.stringify( createProviderList().iterator(), "\n" );
println( (list.length() == 0) ? "<none>" : list );
println( "\nProviders successfully loaded (includes built-ins): " );
final JMXConnectorProvider [] providersLoaded = getConnectionMgr().getProviders();
for ( int i = 0; i < providersLoaded.length; ++i )
{
JMXConnectorProvider provider = providersLoaded[ i ];
println( provider.getClass().getName() );
}
}
void
displayCmds( )
throws Exception
{
println( "Commands configured: " );
final String list = IteratorStringifier.stringify( createCmdList().iterator(), "\n" );
println( (list.length() == 0) ? "<none>" : list );
}
void
displayConfig( )
throws Exception
{
displayProviders();
println( "" );
displayCmds();
}
void
addCmd()
throws Exception
{
requireNumOperands( 1, "A command classname must be specified");
final String commandClassname = getOperands()[ 0 ];
final ClassList list = createCmdList();
if ( list.exists( commandClassname ) )
{
println( "Command already in list: " + commandClassname );
}
else if ( ! isLegalClassname( commandClassname ) )
{
printError( "Illegal classname: " + commandClassname );
}
else
{
final CmdFactoryIniter initer = new CmdFactoryIniter( getCmdFactory() );
final Class theClass = ClassUtil.getClassFromName( commandClassname );
initer.addMappings( theClass );
list.add( commandClassname );
envPut( ENV_COMMANDS, list.toString(), true );
}
}
void
removeCmd()
throws Exception
{
requireNumOperands( 1, "A classname must be specified");
final String classname = getOperands()[ 0 ];
final ClassList list = createCmdList();
if ( ! list.exists( classname ) )
{
println( "Command not registered: " + classname );
}
else
{
// remove it from the preferences
list.remove( classname );
envPut( ENV_PROVIDERS, list.toString(), true );
// remove it from the factory
final CmdFactoryIniter initer = new CmdFactoryIniter( getCmdFactory() );
initer.removeMappings( ClassUtil.getClassFromName( classname ) );
}
}
void
executeInternal()
throws Exception
{
final String cmdName = getCmdNameAsInvoked();
if ( cmdName.equals( SHOW_CONFIG ) )
{
displayConfig();
}
else if ( cmdName.equals( ADD_PROVIDER ) )
{
addProvider();
}
else if ( cmdName.equals( REMOVE_PROVIDER ) )
{
removeProvider( );
}
else if ( cmdName.equals( ADD_CMD ) )
{
addCmd( );
}
else if ( cmdName.equals( REMOVE_CMD ) )
{
removeCmd( );
}
else
{
printUsage();
}
}
}