/*
 * FindBugs - Find bugs in Java programs
 * Copyright (C) 2003-2005, 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 java.util.Iterator;

import edu.umd.cs.findbugs.BugInstance;
import edu.umd.cs.findbugs.xml.XMLOutput;

public class OrMatcher extends CompoundMatcher {

    @Override
    public boolean match(BugInstance bugInstance) {
        Iterator<Matcher> i = childIterator();
        while (i.hasNext()) {
            Matcher child = i.next();
            if (child.match(bugInstance)) {
                return true;
            }
        }
        return false;
    }

    @Override
    public void writeXML(XMLOutput xmlOutput, boolean disabled) throws IOException {
        if (numberChildren() == 1) {
            childIterator().next().writeXML(xmlOutput, false);
            return;
        }
        xmlOutput.startTag("Or");
        if (disabled) {
            xmlOutput.addAttribute("disabled", "true");
        }
        xmlOutput.stopTag(false);
        writeChildrenXML(xmlOutput);
        xmlOutput.closeTag("Or");
    }

    @Override
    public String toString() {
        if (numberChildren() == 1) {
            return super.toString();
        }
        return "Or(" + super.toString() + ")";
    }

}

