package org.hibernate.tuple.component;
import org.hibernate.tuple.EntityModeToTuplizerMapping;
import org.hibernate.tuple.Tuplizer;
import org.hibernate.mapping.Component;
import org.hibernate.mapping.PersistentClass;
import org.hibernate.EntityMode;
import org.hibernate.HibernateException;
import org.hibernate.util.ReflectHelper;
import java.util.Map;
import java.util.HashMap;
import java.util.Iterator;
import java.io.Serializable;
/**
* Handles mapping {@link EntityMode}s to {@link ComponentTuplizer}s.
* <p/>
* Most of the handling is really in the super class; here we just create
* the tuplizers and add them to the superclass
*
* @author Steve Ebersole
*/
class ComponentEntityModeToTuplizerMapping extends EntityModeToTuplizerMapping implements Serializable {
private static final Class[] COMPONENT_TUP_CTOR_SIG = new Class[] { Component.class };
public ComponentEntityModeToTuplizerMapping(Component component) {
PersistentClass owner = component.getOwner();
// create our own copy of the user-supplied tuplizer impl map
Map userSuppliedTuplizerImpls = new HashMap();
if ( component.getTuplizerMap() != null ) {
userSuppliedTuplizerImpls.putAll( component.getTuplizerMap() );
}
// Build the dynamic-map tuplizer...
Tuplizer dynamicMapTuplizer = null;
String tuplizerImpl = ( String ) userSuppliedTuplizerImpls.remove( EntityMode.MAP );
if ( tuplizerImpl == null ) {
dynamicMapTuplizer = new DynamicMapComponentTuplizer( component );
}
else {
dynamicMapTuplizer = buildComponentTuplizer( tuplizerImpl, component );
}
// then the pojo tuplizer, using the dynamic-map tuplizer if no pojo representation is available
tuplizerImpl = ( String ) userSuppliedTuplizerImpls.remove( EntityMode.POJO );
Tuplizer pojoTuplizer = null;
if ( owner.hasPojoRepresentation() && component.hasPojoRepresentation() ) {
if ( tuplizerImpl == null ) {
pojoTuplizer = new PojoComponentTuplizer( component );
}
else {
pojoTuplizer = buildComponentTuplizer( tuplizerImpl, component );
}
}
else {
pojoTuplizer = dynamicMapTuplizer;
}
// then dom4j tuplizer, if dom4j representation is available
Tuplizer dom4jTuplizer = null;
tuplizerImpl = ( String ) userSuppliedTuplizerImpls.remove( EntityMode.DOM4J );
if ( owner.hasDom4jRepresentation() ) {
if ( tuplizerImpl == null ) {
dom4jTuplizer = new Dom4jComponentTuplizer( component );
}
else {
dom4jTuplizer = buildComponentTuplizer( tuplizerImpl, component );
}
}
else {
dom4jTuplizer = null;
}
// put the "standard" tuplizers into the tuplizer map first
if ( pojoTuplizer != null ) {
addTuplizer( EntityMode.POJO, pojoTuplizer );
}
if ( dynamicMapTuplizer != null ) {
addTuplizer( EntityMode.MAP, dynamicMapTuplizer );
}
if ( dom4jTuplizer != null ) {
addTuplizer( EntityMode.DOM4J, dom4jTuplizer );
}
// then handle any user-defined entity modes...
if ( !userSuppliedTuplizerImpls.isEmpty() ) {
Iterator itr = userSuppliedTuplizerImpls.entrySet().iterator();
while ( itr.hasNext() ) {
Map.Entry entry = ( Map.Entry ) itr.next();
EntityMode entityMode = ( EntityMode ) entry.getKey();
ComponentTuplizer tuplizer = buildComponentTuplizer( ( String ) entry.getValue(), component );
addTuplizer( entityMode, tuplizer );
}
}
}
private ComponentTuplizer buildComponentTuplizer(String tuplizerImpl, Component component) {
try {
Class implClass = ReflectHelper.classForName( tuplizerImpl );
return ( ComponentTuplizer ) implClass.getConstructor( COMPONENT_TUP_CTOR_SIG ).newInstance( new Object[] { component } );
}
catch( Throwable t ) {
throw new HibernateException( "Could not build tuplizer [" + tuplizerImpl + "]", t );
}
}
}