/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.aop.pointcut;
import java.lang.reflect.Field;
import org.jboss.aop.Advisor;
import org.jboss.aop.pointcut.ast.ASTAll;
import org.jboss.aop.pointcut.ast.ASTAttribute;
import org.jboss.aop.pointcut.ast.ASTConstructor;
import org.jboss.aop.pointcut.ast.ASTField;
import org.jboss.aop.pointcut.ast.ASTFieldExecution;
import org.jboss.aop.pointcut.ast.ASTHas;
import org.jboss.aop.pointcut.ast.ASTHasField;
import org.jboss.aop.pointcut.ast.ASTMethod;
import org.jboss.aop.pointcut.ast.ASTStart;
import org.jboss.aop.pointcut.ast.ClassExpression;
import org.jboss.aop.pointcut.ast.Node;
import javassist.CtField;
import javassist.NotFoundException;
/**
* Comment
*
* @author <a href="mailto:bill@jboss.org">Bill Burke</a>
* @version $Revision: 44925 $
*/
public class FieldMatcher extends MatcherHelper
{
protected Advisor advisor;
protected String classname;
protected String fieldName;
protected int fieldModifiers;
protected CtField ctField;
protected Field refField;
public FieldMatcher(Advisor advisor, CtField field, ASTStart start) throws NotFoundException
{
super(start, advisor.getManager());
this.advisor = advisor;
this.classname = field.getDeclaringClass().getName();
this.start = start;
this.fieldName = field.getName();
this.fieldModifiers = field.getModifiers();
this.ctField = field;
}
public FieldMatcher(Advisor advisor, Field field, ASTStart start)
{
super(start, advisor.getManager());
this.advisor = advisor;
this.classname = field.getDeclaringClass().getName();
this.start = start;
this.fieldName = field.getName();
this.fieldModifiers = field.getModifiers();
this.refField = field;
}
protected Boolean resolvePointcut(Pointcut p)
{
throw new RuntimeException("SHOULD NOT BE CALLED");
}
public Object visit(ASTField node, Object data)
{
if (node.getAttributes().size() > 0)
{
for (int i = 0; i < node.getAttributes().size(); i++)
{
ASTAttribute attr = (ASTAttribute) node.getAttributes().get(i);
if (!Util.matchModifiers(attr, fieldModifiers))
{
return Boolean.FALSE;
}
}
}
try
{
ClassExpression type = node.getType();
if (ctField != null)
{
if (!Util.matchesClassExpr(type, ctField.getType(), advisor)) return Boolean.FALSE;
if (!Util.matchesClassExpr(node.getClazz(), ctField.getDeclaringClass(), advisor)) return Boolean.FALSE;
}
else
{
if (!Util.matchesClassExpr(type, refField.getType(), advisor)) return Boolean.FALSE;
if (!Util.matchesClassExpr(node.getClazz(), refField.getDeclaringClass(), advisor)) return Boolean.FALSE;
}
}
catch (NotFoundException nfe)
{
throw new RuntimeException(nfe);
}
if (node.getFieldIdentifier().isAnnotation())
{
String sub = node.getFieldIdentifier().getOriginal().substring(1);
if (advisor.getFieldMetaData().hasTag(fieldName, sub) || advisor.getDefaultMetaData().hasTag(sub))
{
return Boolean.TRUE;
}
try
{
if (ctField != null)
{
if (advisor.hasAnnotation(ctField, sub))
{
return Boolean.TRUE;
}
}
else
{
if (advisor.hasAnnotation(refField, sub))
{
return Boolean.TRUE;
}
}
}
catch (Exception e)
{
throw new RuntimeException(e); //To change body of catch statement use Options | File Templates.
}
}
else
{
if (node.getFieldIdentifier().matches(fieldName))
{
return Boolean.TRUE;
}
}
return Boolean.FALSE;
}
public Object visit(ASTFieldExecution node, Object data)
{
return node.jjtGetChild(0).jjtAccept(this, null);
}
public Object visit(ASTAll node, Object data)
{
if (node.getClazz().isAnnotation())
{
String sub = node.getClazz().getOriginal().substring(1);
if (!advisor.getFieldMetaData().hasTag(fieldName, sub))
{
if (!advisor.getDefaultMetaData().hasTag(sub))
{
if (ctField != null)
{
if (!advisor.hasAnnotation(ctField, sub)) return Boolean.FALSE;
}
else
{
try
{
if (!advisor.hasAnnotation(refField, sub)) return Boolean.FALSE;
}
catch (Exception e)
{
throw new RuntimeException(e); //To change body of catch statement use Options | File Templates.
}
}
}
}
}
else if (node.getClazz().isInstanceOf())
{
if (ctField != null)
{
if (!Util.subtypeOf(ctField.getDeclaringClass(), node.getClazz(), advisor)) return Boolean.FALSE;
}
else if (!Util.subtypeOf(refField.getDeclaringClass(), node.getClazz(), advisor)) return Boolean.FALSE;
}
else if (node.getClazz().isTypedef())
{
if (ctField != null)
{
try
{
if (!Util.matchesTypedef(ctField.getDeclaringClass(), node.getClazz(), advisor)) return Boolean.FALSE;
}
catch (Exception e)
{
throw new RuntimeException(e);
}
}
else if (!Util.matchesTypedef(refField.getDeclaringClass(), node.getClazz(), advisor)) return Boolean.FALSE;
}
else if (!node.getClazz().matches(classname))
{
return Boolean.FALSE;
}
return Boolean.TRUE;
}
public Object visit(ASTHasField node, Object data)
{
ASTField f = (ASTField) node.jjtGetChild(0);
if (ctField != null)
return new Boolean(Util.has(ctField.getDeclaringClass(), f, advisor));
else
return new Boolean(Util.has(refField.getDeclaringClass(), f, advisor));
}
public Object visit(ASTHas node, Object data)
{
Node n = node.jjtGetChild(0);
if (n instanceof ASTMethod)
{
if (ctField != null)
{
return new Boolean(Util.has(ctField.getDeclaringClass(), (ASTMethod) n, advisor));
}
else
{
return new Boolean(Util.has(refField.getDeclaringClass(), (ASTMethod) n, advisor));
}
}
else
{
if (refField != null)
{
return new Boolean(Util.has(ctField.getDeclaringClass(), (ASTConstructor) n, advisor));
}
else
{
return new Boolean(Util.has(refField.getDeclaringClass(), (ASTConstructor) n, advisor));
}
}
}
}