/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2008, Red Hat Middleware LLC or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Middleware LLC.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*
*/
package org.hibernate.pretty;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.hibernate.HibernateException;
import org.hibernate.EntityMode;
import org.hibernate.engine.SessionFactoryImplementor;
import org.hibernate.engine.TypedValue;
import org.hibernate.intercept.LazyPropertyInitializer;
import org.hibernate.metadata.ClassMetadata;
import org.hibernate.type.Type;
/**
* Renders entities to a nicely readable string.
* @author Gavin King
*/
public final class Printer {
private SessionFactoryImplementor factory;
private static final Logger log = LoggerFactory.getLogger(Printer.class);
/**
* @param entity an actual entity object, not a proxy!
*/
public String toString(Object entity, EntityMode entityMode) throws HibernateException {
// todo : this call will not work for anything other than pojos!
ClassMetadata cm = factory.getClassMetadata( entity.getClass() );
if ( cm==null ) return entity.getClass().getName();
Map result = new HashMap();
if ( cm.hasIdentifierProperty() ) {
result.put(
cm.getIdentifierPropertyName(),
cm.getIdentifierType().toLoggableString( cm.getIdentifier( entity, entityMode ), factory )
);
}
Type[] types = cm.getPropertyTypes();
String[] names = cm.getPropertyNames();
Object[] values = cm.getPropertyValues( entity, entityMode );
for ( int i=0; i<types.length; i++ ) {
if ( !names[i].startsWith("_") ) {
String strValue = values[i]==LazyPropertyInitializer.UNFETCHED_PROPERTY ?
values[i].toString() :
types[i].toLoggableString( values[i], factory );
result.put( names[i], strValue );
}
}
return cm.getEntityName() + result.toString();
}
public String toString(Type[] types, Object[] values) throws HibernateException {
List list = new ArrayList( types.length * 5 );
for ( int i=0; i<types.length; i++ ) {
if ( types[i]!=null ) list.add( types[i].toLoggableString( values[i], factory ) );
}
return list.toString();
}
public String toString(Map namedTypedValues) throws HibernateException {
Map result = new HashMap();
Iterator iter = namedTypedValues.entrySet().iterator();
while ( iter.hasNext() ) {
Map.Entry me = (Map.Entry) iter.next();
TypedValue tv = (TypedValue) me.getValue();
result.put( me.getKey(), tv.getType().toLoggableString( tv.getValue(), factory ) );
}
return result.toString();
}
public void toString(Iterator iter, EntityMode entityMode) throws HibernateException {
if ( !log.isDebugEnabled() || !iter.hasNext() ) return;
log.debug("listing entities:");
int i=0;
while ( iter.hasNext() ) {
if (i++>20) {
log.debug("more......");
break;
}
log.debug( toString( iter.next(), entityMode ) );
}
}
public Printer(SessionFactoryImplementor factory) {
this.factory = factory;
}
}