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package com.sun.appserv.management.util.jmx;
import java.util.Map;
import java.util.HashMap;
import java.io.Serializable;
import javax.management.ObjectName;
import javax.management.openmbean.OpenType;
import javax.management.openmbean.ArrayType;
import javax.management.openmbean.CompositeData;
import javax.management.openmbean.CompositeDataSupport;
import javax.management.openmbean.CompositeType;
import javax.management.openmbean.TabularType;
import javax.management.openmbean.TabularData;
import javax.management.openmbean.SimpleType;
import javax.management.openmbean.OpenDataException;
import javax.management.openmbean.InvalidOpenTypeException;
import com.sun.appserv.management.util.jmx.OpenMBeanUtil;
import com.sun.appserv.management.util.misc.TypeCast;
public class CompositeDataHelper
{
public
CompositeDataHelper()
{
}
protected <T extends Serializable> CompositeType
mapToCompositeType(
final String typeName,
final String description,
final Map<String,T> map)
throws OpenDataException
{
return mapToCompositeType( typeName, description, map, null );
}
/**
Create a CompositeType from a Map. Each key in the map must be a String,
and each value must be a type consistent with OpenTypes.
@param typeName the arbitrary name of the OpenType to be used
@param description the arbitrary description of the OpenType to be used
@param map a Map keyed by String, whose values may not be null
*/
protected <T extends Serializable> CompositeType
mapToCompositeType(
final String typeName,
final String description,
final Map<String,T> map,
CompositeTypeFromNameCallback callback)
throws OpenDataException
{
return OpenMBeanUtil.mapToCompositeType( typeName, description, map, callback );
}
/**
Create a CompositeData from a Map. Each key in the map must be a String,
and each value must be a type consistent with OpenTypes.
@param typeName the arbitrary name of the OpenType to be used
@param description the arbitrary description of the OpenType to be used
@param map a Map keyed by String, whose values may not be null
*/
protected <T extends Serializable> CompositeData
mapToCompositeData(
final String typeName,
final String description,
final Map<String,T> map )
throws OpenDataException
{
final CompositeType type = mapToCompositeType( typeName, description, map );
return( new CompositeDataSupport( type, map ) );
}
public Serializable
asData( final Serializable o )
throws OpenDataException
{
Object result = null;
if ( o instanceof StackTraceElement )
{
result = stackTraceElementCompositeData( (StackTraceElement)o );
}
else if ( o instanceof Throwable )
{
result = throwableToCompositeData( (Throwable)o );
}
else if ( o instanceof Map )
{
final Map<String,Serializable> m = TypeCast.asSerializableMap( o );
result = mapToCompositeData( Map.class.getName(), "", m );
}
else
{
final OpenType type = OpenMBeanUtil.getOpenType( o );
if ( type instanceof SimpleType )
{
result = o;
}
else if ( type instanceof ArrayType )
{
result = o;
}
else
{
throw new IllegalArgumentException( "" + o );
}
}
return( Serializable.class.cast( result ) );
}
/**
Get a CompositeType describing a CompositeData which has no elements.
*/
public CompositeType
getStackTraceElementCompositeType()
throws OpenDataException
{
final String[] itemNames = new String[]
{
"ClassName",
"FileName",
"LineNumber",
"isNativeMethod",
};
final String[] descriptions = new String[ ]
{
"ClassName",
"FileName",
"LineNumber",
"IsNativeMethod",
};
final OpenType[] openTypes = new OpenType[ itemNames.length ];
openTypes[ 0 ] = SimpleType.STRING;
openTypes[ 1 ] = SimpleType.STRING;
openTypes[ 2 ] = SimpleType.INTEGER;
openTypes[ 3 ] = SimpleType.BOOLEAN;
final CompositeType type = new CompositeType(
StackTraceElement.class.getName(),
"StackTraceElement composite type",
itemNames,
descriptions,
openTypes
);
return( type );
}
/**
Get a CompositeType describing a CompositeData which has no elements.
*/
public CompositeData
stackTraceElementCompositeData( StackTraceElement elem )
throws OpenDataException
{
final Map<String,Serializable> m = new HashMap<String,Serializable>();
m.put( "ClassName", elem.getClassName() );
m.put( "FileName", elem.getFileName() );
m.put( "LineNumber", new Integer( elem.getLineNumber() ) );
m.put( "isNativeMethod", Boolean.valueOf( elem.isNativeMethod() ) );
return( new CompositeDataSupport( getStackTraceElementCompositeType(), m ) );
}
/**
Get a CompositeType describing a CompositeData which has no elements.
*/
public CompositeData
throwableToCompositeData( final Throwable t)
throws OpenDataException
{
final Throwable cause = t.getCause();
final String[] itemNames = new String[]
{
"Message",
"Cause",
"StackTrace",
};
final String[] descriptions = new String[ ]
{
"The message from the Throwable",
"The cause (if any) from the Throwable",
"The stack trace from the Throwable",
};
final OpenType[] openTypes = new OpenType[ itemNames.length ];
openTypes[ 0 ] = SimpleType.STRING;
openTypes[ 1 ] = cause == null ?
getEmptyCompositeType() : throwableToCompositeData( cause ).getCompositeType();
openTypes[ 2 ] = new ArrayType( t.getStackTrace().length,
getStackTraceElementCompositeType() );
final CompositeType type = new CompositeType(
t.getClass().getName(),
"Throwable composite type",
itemNames,
descriptions,
openTypes
);
final Map<String,Object> m = new HashMap<String,Object>();
m.put( "Message", t.getMessage() );
m.put( "Cause", cause == null ? null : throwableToCompositeData( cause ) );
m.put( "StackTrace", t.getStackTrace() );
return( new CompositeDataSupport( type, m ) );
}
private final static String[] EMPTY_STRING_ARRAY = new String[0];
private final static OpenType[] EMPTY_OPENTYPES = new OpenType[0];
/**
Get a CompositeType describing a CompositeData which has no elements.
*/
public static CompositeType
getEmptyCompositeType()
throws OpenDataException
{
return( new CompositeType(
CompositeType.class.getName() + ".Empty",
"Empty composite type",
EMPTY_STRING_ARRAY,
EMPTY_STRING_ARRAY,
EMPTY_OPENTYPES
) );
}
}
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