/*
 * Copyright Red Hat Inc. and/or its affiliates and other contributors
 * as indicated by the authors tag. All rights reserved.
 *
 * 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 General Public License version 2.
 * 
 * This particular file is subject to the "Classpath" exception as provided in the 
 * LICENSE file that accompanied this code.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT A
 * 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 distribution; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA  02110-1301, USA.
 */

package com.redhat.ceylon.ant;

import java.util.LinkedHashSet;
import java.util.Set;

import org.apache.tools.ant.types.DataType;

/**
 * Runtime representation of a {@code <linkset>} element, which can be 
 * defined at the top level of an ant project and referred to by other tasks.
 */
public class LinkSet extends DataType {

    private final LinkedHashSet<Link> links = new LinkedHashSet<Link>();
    
    public void addConfiguredLink(Link link) {
        links.add(link);
    }
    
    public void addConfiguredLinkSet(LinkSet linkset) {
        links.addAll(linkset.getLinks());
    }
    
    public Set<Link> getLinks() {
        LinkedHashSet<Link> result = new LinkedHashSet<Link>();
        result.addAll(this.links);

        if (getRefid() != null) {
            LinkSet referredLinkSet = (LinkSet)getProject().getReference(getRefid().getRefId());
            result.addAll(referredLinkSet.getLinks());        
        }
        return result;
    }
    
}