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package com.sun.appserv.management.j2ee.statistics;
import java.util.Map;
import java.lang.reflect.Proxy;
import javax.management.openmbean.CompositeData;
import javax.management.openmbean.CompositeType;
import javax.management.j2ee.statistics.*;
import com.sun.appserv.management.util.jmx.OpenMBeanUtil;
import com.sun.appserv.management.util.j2ee.J2EEUtil;
import com.sun.appserv.management.util.misc.TypeCast;
import com.sun.appserv.management.util.misc.ClassUtil;
/**
Factory to create Stats subclasses of any kind, based on supplied interface type
and a Map or CompositeData containing the Statistics.
*/
public final class StatsFactory
{
private StatsFactory() {}
/**
Create a new Stats using the specified CompositeData
@param theInterface interface which the Stats should implement, must extend Stats
*/
public static Stats
create( Class<? extends Stats> theInterface, final CompositeData data )
{
final Map<String,Statistic> statistics = TypeCast.asMap( compositeDataToMap( data ) );
return( createStats( theInterface, statistics ) );
}
public static Map<String,Statistic>
compositeDataToMap( final CompositeData data )
{
return( TypeCast.asMap( OpenMBeanUtil.compositeDataToMap( data ) ) );
}
/**
Create a Stats using Stats class found as data.getCompositeType().getTypeName().
If this interface is not available, a generic Stats interface will be used.
*/
public static Stats
createStats( final CompositeData data )
{
final String typeName = data.getCompositeType().getTypeName();
Class<? extends Stats> theInterface = null;
try
{
theInterface = TypeCast.asClass( ClassUtil.classForName( typeName ) );
}
catch( Exception e )
{
theInterface = Stats.class;
}
return( create( theInterface, data ) );
}
/**
Create a new Stats using the specified Map. The standard JSR 77
Statistic types are handled appropriately. Custom (non-standard) Stats
may also be used; in this case a proxy is returned which implements
the interface specified by theClass.
@param theInterface the Stats sub-interface which the resulting should implement
@param statistics a Map containing keys of type String and their Statistic values
*/
public static <T extends Stats> T
createStats( Class<T> theInterface, final Map<String,Statistic> statistics )
{
if ( ! Stats.class.isAssignableFrom( theInterface ) )
{
throw new IllegalArgumentException( theInterface.getName() );
}
// generate a proxy
final MapGetterInvocationHandler handler =
new MapGetterInvocationHandler<Statistic>( statistics );
final ClassLoader classLoader = theInterface.getClassLoader();
final Class<T>[] interfaces = TypeCast.asArray( new Class[] { theInterface } );
final Object proxy = Proxy.newProxyInstance( classLoader, interfaces, handler);
return theInterface.cast( proxy );
}
private void test()
{
createStats( EJBStats.class, new java.util.HashMap<String,Statistic>() );
}
/**
Calls createStats( theInterface, J2EEUtil.statisticsToMap( statistics ) )
*/
public static <T extends Stats> T
createStats( Class<T> theInterface, final Statistic[] statistics )
{
final Map<String,Statistic> statisticsMap = J2EEUtil.statisticsToMap( statistics );
return( createStats( theInterface, statisticsMap ) );
}
public static EJBStats
createEJBStats( final Map<String,Statistic> statistics )
{
return( createStats( EJBStats.class, statistics ) );
}
public static URLStats
createURLStats( final Map<String,Statistic> statistics )
{
return( createStats( URLStats.class, statistics ) );
}
public static EntityBeanStats
createEntityBeanStats( final Map<String,Statistic> statistics )
{
return( createStats( EntityBeanStats.class, statistics ) );
}
public static JCAConnectionPoolStats
createJCAConnectionPoolStats( final Map<String,Statistic> statistics )
{
return( createStats( JCAConnectionPoolStats.class, statistics ) );
}
public static JCAConnectionStats
createJCAConnectionStats( final Map<String,Statistic> statistics )
{
return( createStats( JCAConnectionStats.class, statistics ) );
}
public static JCAStats
createJCAStats( final Map<String,Statistic> statistics )
{
return( createStats( JCAStats.class, statistics ) );
}
public static JDBCConnectionPoolStats
createJDBCConnectionPoolStats( final Map<String,Statistic> statistics )
{
return( createStats( JDBCConnectionPoolStats.class, statistics ) );
}
public static JDBCConnectionStats
createJDBCConnectionStats( final Map<String,Statistic> statistics )
{
return( createStats( JDBCConnectionStats.class, statistics ) );
}
public static JDBCStats
createJDBCStats( final Map<String,Statistic> statistics )
{
return( createStats( JDBCStats.class, statistics ) );
}
public static JMSConnectionStats
createJMSConnectionStats( final Map<String,Statistic> statistics )
{
return( createStats( JMSConnectionStats.class, statistics ) );
}
public static JMSConsumerStats
createJMSConsumerStats( final Map<String,Statistic> statistics )
{
return( createStats( JMSConsumerStats.class, statistics ) );
}
public static JMSEndpointStats
createJMSEndpointStats( final Map<String,Statistic> statistics )
{
return( createStats( JMSEndpointStats.class, statistics ) );
}
public static JMSProducerStats
createJMSProducerStats( final Map<String,Statistic> statistics )
{
return( createStats( JMSProducerStats.class, statistics ) );
}
public static JMSSessionStats
createJMSSessionStats( final Map<String,Statistic> statistics )
{
return( createStats( JMSSessionStats.class, statistics ) );
}
public static JMSStats
createJMSStats( final Map<String,Statistic> statistics )
{
return( createStats( JMSStats.class, statistics ) );
}
public static JTAStats
createJTAStats( final Map<String,Statistic> statistics )
{
return( createStats( JTAStats.class, statistics ) );
}
public static JVMStats
createJVMStats( final Map<String,Statistic> statistics )
{
return( createStats( JVMStats.class, statistics ) );
}
public static MessageDrivenBeanStats
createMessageDrivenBeanStats( final Map<String,Statistic> statistics )
{
return( createStats( MessageDrivenBeanStats.class, statistics ) );
}
public static ServletStats
createServletStats( final Map<String,Statistic> statistics )
{
return( createStats( ServletStats.class, statistics ) );
}
public static SessionBeanStats
createSessionBeanStats( final Map<String,Statistic> statistics )
{
return( createStats( SessionBeanStats.class, statistics ) );
}
public static StatefulSessionBeanStats
createStatefulSessionBeanStats( final Map<String,Statistic> statistics )
{
return( createStats( StatefulSessionBeanStats.class, statistics ) );
}
public static StatelessSessionBeanStats
createStatelessSessionBeanStats( final Map<String,Statistic> statistics )
{
return( createStats( StatelessSessionBeanStats.class, statistics ) );
}
public static JavaMailStats
createJavaMailStats( final Map<String,Statistic> statistics )
{
// bizarre compiler error in JDK 1.5.0_06 forces us to inline the code here
final Class<JavaMailStats> theInterface = JavaMailStats.class;
JavaMailStats result = null;
// generate a proxy
final MapGetterInvocationHandler handler =
new MapGetterInvocationHandler<Statistic>( statistics );
final ClassLoader classLoader = theInterface.getClassLoader();
final Class<JavaMailStats>[] interfaces = TypeCast.asArray( new Class[] { theInterface } );
result = (JavaMailStats)Proxy.newProxyInstance( classLoader, interfaces, handler);
return result;
}
}
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