/*************************************************************************
* Copyright 2009-2012 Eucalyptus Systems, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 3 of the License.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see http://www.gnu.org/licenses/.
*
* Please contact Eucalyptus Systems, Inc., 6755 Hollister Ave., Goleta
* CA 93117, USA or visit http://www.eucalyptus.com/licenses/ if you need
* additional information or have any questions.
*
* This file may incorporate work covered under the following copyright
* and permission notice:
*
* Software License Agreement (BSD License)
*
* Copyright (c) 2008, Regents of the University of California
* All rights reserved.
*
* Redistribution and use of this software in source and binary forms,
* with or without modification, are permitted provided that the
* following conditions are met:
*
* Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE. USERS OF THIS SOFTWARE ACKNOWLEDGE
* THE POSSIBLE PRESENCE OF OTHER OPEN SOURCE LICENSED MATERIAL,
* COPYRIGHTED MATERIAL OR PATENTED MATERIAL IN THIS SOFTWARE,
* AND IF ANY SUCH MATERIAL IS DISCOVERED THE PARTY DISCOVERING
* IT MAY INFORM DR. RICH WOLSKI AT THE UNIVERSITY OF CALIFORNIA,
* SANTA BARBARA WHO WILL THEN ASCERTAIN THE MOST APPROPRIATE REMEDY,
* WHICH IN THE REGENTS' DISCRETION MAY INCLUDE, WITHOUT LIMITATION,
* REPLACEMENT OF THE CODE SO IDENTIFIED, LICENSING OF THE CODE SO
* IDENTIFIED, OR WITHDRAWAL OF THE CODE CAPABILITY TO THE EXTENT
* NEEDED TO COMPLY WITH ANY SUCH LICENSES OR RIGHTS.
************************************************************************/
package com.eucalyptus.entities;
import java.io.Serializable;
import java.util.Iterator;
import org.apache.log4j.Logger;
import org.hibernate.CallbackException;
import org.hibernate.EmptyInterceptor;
import org.hibernate.EntityMode;
import org.hibernate.Interceptor;
import org.hibernate.Transaction;
import org.hibernate.type.Type;
import com.eucalyptus.records.Logs;
import com.eucalyptus.system.Threads;
import com.eucalyptus.util.Classes;
import com.google.common.collect.HashBasedTable;
import com.google.common.collect.Iterables;
import com.google.common.collect.Iterators;
import com.google.common.collect.Lists;
import com.google.common.collect.Table;
public class Interceptors {//TODO:GRZE:@Configurable
private static final Table stringify( Object[] state, final String[] propertyNames, final Type[] types ) {
return HashBasedTable.create( );
}
private static final class LogMonitorInterceptor extends EmptyInterceptor {
private static final long serialVersionUID = 1L;
private int operations = 0;
private String toStringNullably( Object o ) {
try {
return o != null
? "" + o.toString( )
: "null";
} catch ( Exception ex ) {
return o.getClass( ).getCanonicalName( ) + ".toString(): " + ex.getMessage( );
}
}
@Override
public void onDelete( final Object entity, final Serializable id, final Object[] state, final String[] propertyNames, final Type[] types ) {
try {
LOG.debug( String.format( "%s():%d %s %s %s", Threads.currentStackFrame( ).getMethodName( ), ++this.operations, entity.getClass( ).getSimpleName( ),
id, toStringNullably( entity ) ) );
} catch ( Exception ex ) {
LOG.error( ex );
}
super.onDelete( entity, id, state, propertyNames, types );
}
@Override
public boolean onFlushDirty( final Object entity, final Serializable id, final Object[] currentState, final Object[] previousState, final String[] propertyNames, final Type[] types ) {
try {
LOG.debug( String.format( "%s():%d %s %s %s", Threads.currentStackFrame( ).getMethodName( ), ++this.operations, entity.getClass( ).getSimpleName( ),
id, toStringNullably( entity ) ) );
} catch ( Exception ex ) {
LOG.error( ex );
}
return super.onFlushDirty( entity, id, currentState, previousState, propertyNames, types );
}
/**
* NOTE: <b>MUST</b> remember that the {@code entity} is {@code null} at this time!
*/
@Override
public boolean onLoad( final Object entity, final Serializable id, final Object[] state, final String[] propertyNames, final Type[] types ) {
try {
LOG.debug( String.format( "%s():%d %s %s", Threads.currentStackFrame( ).getMethodName( ), ++this.operations, entity.getClass( ).getSimpleName( ),
id ) );
} catch ( Exception ex ) {
LOG.error( ex );
}
return super.onLoad( entity, id, state, propertyNames, types );
}
@Override
public boolean onSave( final Object entity, final Serializable id, final Object[] state, final String[] propertyNames, final Type[] types ) {
try {
LOG.debug( String.format( "%s():%d %s %s %s", Threads.currentStackFrame( ).getMethodName( ), ++this.operations, entity.getClass( ).getSimpleName( ),
id, toStringNullably( entity ) ) );
} catch ( Exception ex ) {
LOG.error( ex );
}
return super.onSave( entity, id, state, propertyNames, types );
}
@Override
public void postFlush( final Iterator entities ) {
try {
if ( Logs.isExtrrreeeme( ) ) Logs.exhaust( ).debug( String.format( "%s():%d %s", Threads.currentStackFrame( ).getMethodName( ), this.operations,
Iterators.transform( entities, Classes.simpleNameFunction( ) ) ) );
} catch ( Exception ex ) {
LOG.error( ex );
}
super.postFlush( entities );
}
@Override
public void preFlush( final Iterator entities ) {
try {
if ( Logs.isExtrrreeeme( ) ) Logs.exhaust( ).debug( String.format( "%s():%d %s", Threads.currentStackFrame( ).getMethodName( ), this.operations,
Iterators.transform( entities, Classes.simpleNameFunction( ) ) ) );
} catch ( Exception ex ) {
LOG.error( ex );
}
super.preFlush( entities );
}
@Override
public Boolean isTransient( final Object entity ) {
return super.isTransient( entity );
}
@Override
public void afterTransactionBegin( final Transaction tx ) {
try {
LOG.debug( String.format( "%s():%d %s", Threads.currentStackFrame( ).getMethodName( ), this.operations = 0, tx.toString( ) ) );
} catch ( Exception ex ) {
LOG.error( ex );
}
super.afterTransactionBegin( tx );
}
@Override
public void afterTransactionCompletion( final Transaction tx ) {
try {
LOG.debug( String.format( "%s():%d %s", Threads.currentStackFrame( ).getMethodName( ), this.operations, tx.toString( ) ) );
} catch ( Exception ex ) {
LOG.error( ex );
}
super.afterTransactionCompletion( tx );
}
@Override
public void beforeTransactionCompletion( final Transaction tx ) {
if ( this.operations == 0 ) {
LOG.error( Threads.currentStackString( ) );
}
try {
LOG.debug( String.format( "%s():%d %s", Threads.currentStackFrame( ).getMethodName( ), this.operations, tx.toString( ) ) );
} catch ( Exception ex ) {
LOG.error( ex );
}
super.beforeTransactionCompletion( tx );
}
@Override
public void onCollectionRemove( final Object collection, final Serializable key ) throws CallbackException {
try {
Iterable<Object> iter = ( collection instanceof Iterable
? ( Iterable ) collection
: Lists.newArrayList( collection ) );
String summary = Iterables.toString( Iterables.transform( iter, Classes.canonicalNameFunction( ) ) );
if ( Logs.isExtrrreeeme( ) ) Logs.exhaust( ).debug( String.format( "%s():%d %s %s", Threads.currentStackFrame( ).getMethodName( ), ++this.operations,
key, summary ) );
} catch ( Exception ex ) {
LOG.error( ex );
}
super.onCollectionRemove( collection, key );
}
@Override
public void onCollectionRecreate( final Object collection, final Serializable key ) throws CallbackException {
try {
Iterable<Object> iter = ( collection instanceof Iterable
? ( Iterable ) collection
: Lists.newArrayList( collection ) );
String summary = Iterables.toString( Iterables.transform( iter, Classes.canonicalNameFunction( ) ) );
if ( Logs.isExtrrreeeme( ) ) Logs.exhaust( ).debug( String.format( "%s():%d %s %s", Threads.currentStackFrame( ).getMethodName( ), ++this.operations,
key, summary ) );
} catch ( Exception ex ) {
LOG.error( ex );
}
super.onCollectionRecreate( collection, key );
}
@Override
public void onCollectionUpdate( final Object collection, final Serializable key ) throws CallbackException {
try {
Iterable<Object> iter = ( collection instanceof Iterable
? ( Iterable ) collection
: Lists.newArrayList( collection ) );
String summary = Iterables.toString( Iterables.transform( iter, Classes.canonicalNameFunction( ) ) );
LOG.debug( String.format( "%s():%d %s %s", Threads.currentStackFrame( ).getMethodName( ), ++this.operations, key, summary ) );
} catch ( Exception ex ) {
LOG.error( ex );
}
super.onCollectionUpdate( collection, key );
}
@Override
public Object instantiate( String entityName, EntityMode entityMode, Serializable id ) {
try {
LOG.debug( String.format( "%s():%d", Threads.currentStackFrame( ).getMethodName( ), ++this.operations ) );
} catch ( Exception ex ) {
LOG.error( ex );
}
return super.instantiate( entityName, entityMode, id );
}
@Override
public String getEntityName( Object object ) {
try {
LOG.debug( String.format( "%s():%d %s %s", Threads.currentStackFrame( ).getMethodName( ), ++this.operations, object.getClass( ).getSimpleName( ),
toStringNullably( object ) ) );
} catch ( Exception ex ) {
LOG.error( ex );
}
return super.getEntityName( object );
}
@Override
public Object getEntity( String entityName, Serializable id ) {
try {
LOG.debug( String.format( "%s():%d %s %s", Threads.currentStackFrame( ).getMethodName( ), ++this.operations, entityName, id ) );
} catch ( Exception ex ) {
LOG.error( ex );
}
return super.getEntity( entityName, id );
}
}
private static Logger LOG = Logger.getLogger( Interceptors.class );
private static Interceptor empty( ) {
if ( interceptor != null && interceptor instanceof EmptyInterceptor ) {
return interceptor;
} else {
final Interceptor i = new EmptyInterceptor( ) {
private static final long serialVersionUID = 1L;
};
if ( interceptor != null && !( interceptor instanceof EmptyInterceptor ) ) {
interceptor = i;
}
return i;
}
}
@SuppressWarnings( "synthetic-access" )
private static Interceptor logger( ) {
if ( interceptor != null && interceptor instanceof LogMonitorInterceptor ) {
return interceptor;
} else {
final Interceptor i = new LogMonitorInterceptor( );
if ( interceptor != null && !( interceptor instanceof LogMonitorInterceptor ) ) {
interceptor = i;
}
return i;
}
}
private static Boolean TRANSACTION_INTERCEPT = Boolean.FALSE;
private static Interceptor interceptor = get( );
static Interceptor get( ) {
return TRANSACTION_INTERCEPT
? logger( )
: empty( );
}
}