/*************************************************************************
* 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.configurable;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import javax.persistence.Entity;
import javax.persistence.Transient;
import org.apache.log4j.Logger;
public class SingletonDatabasePropertyEntry extends AbstractConfigurableProperty implements ConfigurableProperty {
private static Logger LOG = Logger.getLogger( SingletonDatabasePropertyEntry.class );
public SingletonDatabasePropertyEntry( Class definingClass, String entrySetName, Field field, String description, String defaultValue,
PropertyTypeParser typeParser,
Boolean readOnly, String displayName, ConfigurableFieldType widgetType, String alias,
PropertyChangeListener changeListener ) {
super( definingClass, entrySetName, field, defaultValue, description, typeParser, readOnly, displayName, widgetType, alias, changeListener );
}
@Override
protected Object getQueryObject( ) throws Exception {
return this.getNoArgConstructor( ).newInstance( );
}
@Override
protected Object getInitialObject( ) throws Exception {
return getInitialObjectByAnnotation( );
}
public static class DatabasePropertyBuilder implements ConfigurablePropertyBuilder {
@Override
public ConfigurableProperty buildProperty( Class c, Field f ) throws ConfigurablePropertyException {
if ( c.isAnnotationPresent( Entity.class ) &&
( ( ConfigurableClass ) c.getAnnotation( ConfigurableClass.class ) ).singleton( ) &&
f.isAnnotationPresent( ConfigurableField.class ) ) {
LOG.trace( "Checking field: " + c.getName( ) + "." + f.getName( ) );//REVIEW: lowered this to trace.. sorry.
ConfigurableClass classAnnote = ( ConfigurableClass ) c.getAnnotation( ConfigurableClass.class );
ConfigurableField annote = f.getAnnotation( ConfigurableField.class );
String fqPrefix = classAnnote.root( );
String alias = classAnnote.alias( );
String description = annote.description( );
String defaultValue = configurableFieldInitial( annote );
PropertyTypeParser p = PropertyTypeParser.get( f.getType( ) );
PropertyChangeListener listener = PropertyChangeListeners.getListenerFromClass( annote.changeListener( ) );
try {
if ( !Modifier.isStatic( f.getModifiers( ) ) && !f.isAnnotationPresent( Transient.class ) ) {
boolean readOnly = Modifier.isFinal( f.getModifiers( ) ) || annote.readonly( );
ConfigurableProperty prop = new SingletonDatabasePropertyEntry( c, fqPrefix, f, description, defaultValue, p, readOnly,
annote.displayName( ), annote.type( ), alias, listener );
return prop;
}
} catch ( Exception e ) {
LOG.debug( e, e );
return null;
}
} else {
return null;
}
return null;
}
}
/**
* @see java.lang.Comparable#compareTo(java.lang.Object)
*/
@Override
public int compareTo( ConfigurableProperty that ) {
return this.getQualifiedName( ) != null
? this.getQualifiedName( ).compareTo( that.getQualifiedName( ) )
: ( that.getQualifiedName( ) == null
? 0
: -1 );
}
}