/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2010-2011, Red Hat, Inc. and/or its affiliates 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, Inc.
*
* 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.search.util.impl;
import java.lang.reflect.AccessibleObject;
import java.lang.reflect.Member;
import java.lang.reflect.Modifier;
import org.hibernate.annotations.common.reflection.XMember;
import org.hibernate.annotations.common.util.StringHelper;
/**
* @author Emmanuel Bernard
* @author Hardy Ferentschik
*/
public abstract class ReflectionHelper {
private ReflectionHelper() {
}
/**
* Get attribute name out of member unless overridden by <code>name</code>.
*
* @param member <code>XMember</code> from which to extract the name.
* @param name Override value which will be returned in case it is not empty.
* @return attribute name out of member unless overridden by <code>name</code>.
*/
public static String getAttributeName(XMember member, String name) {
return StringHelper.isNotEmpty( name ) ?
name :
member.getName(); //explicit field name
}
/**
* Always use this method to set accessibility regardless of the visibility.
*/
public static void setAccessible(XMember member) {
try {
// always set accessible to true as it bypass the security model checks
// at execution time and is faster.
member.setAccessible( true );
}
catch ( SecurityException se ) {
if ( !Modifier.isPublic( member.getModifiers() ) ) {
throw se;
}
}
}
/**
* Always use this method to set accessibility regardless of the visibility.
*/
public static void setAccessible(AccessibleObject member) {
try {
// always set accessible to true as it bypass the security model checks
// at execution time and is faster.
member.setAccessible( true );
}
catch ( SecurityException se ) {
if ( !Modifier.isPublic( ( (Member) member ).getModifiers() ) ) {
throw se;
}
}
}
public static Object getMemberValue(Object bean, XMember getter) {
Object value;
try {
value = getter.invoke( bean );
}
catch ( Exception e ) {
throw new IllegalStateException( "Could not get property value", e );
}
return value;
}
}