/*
 * FindBugs - Find Bugs in Java programs
 * Copyright (C) 2006, University of Maryland
 * 
 * This library 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 library 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 library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package edu.umd.cs.findbugs.filter;

import java.io.IOException;

import edu.umd.cs.findbugs.BugAnnotation;
import edu.umd.cs.findbugs.BugInstance;
import edu.umd.cs.findbugs.FieldAnnotation;
import edu.umd.cs.findbugs.MethodAnnotation;
import edu.umd.cs.findbugs.xml.XMLAttributeList;
import edu.umd.cs.findbugs.xml.XMLOutput;

/**
 * @author rafal@caltha.pl
 */
public class FieldMatcher extends MemberMatcher implements Matcher {

	public FieldMatcher(String name) {
		super(name);
	}

	public FieldMatcher(String name, String type) {
		super(name, SignatureUtil.createFieldSignature(type));
	}
	@Override
    public String toString() {
		return "Method(" + super.toString() + ")";
	}
	public boolean match(BugInstance bugInstance) {
		FieldAnnotation fieldAnnotation = null;
		if (role == null || role.equals(""))
			fieldAnnotation = bugInstance.getPrimaryField();
		else for(BugAnnotation a : bugInstance.getAnnotations()) 
			if (a instanceof FieldAnnotation && role.equals(a.getDescription())) {
				fieldAnnotation = (FieldAnnotation) a;
				break;
			}
		if(fieldAnnotation == null) {
			return false;
		}
		if(!name.match(fieldAnnotation.getFieldName())) {
			return false;
		}
		if (signature != null && !signature.equals(fieldAnnotation.getFieldSignature()))
			return false;
		return true;
	}
	
	public void writeXML(XMLOutput xmlOutput, boolean disabled) throws IOException {
		XMLAttributeList attributes = new XMLAttributeList().addAttribute("name", name.getSpec()).addOptionalAttribute("signature",signature);
		if (disabled) attributes.addAttribute("disabled", "true");
		xmlOutput.openCloseTag("Field", attributes);
	}
}