AttachVersionMap.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2011 Lluis Turró Cutiller <http://www.turro.org/>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package  org.turro.attach.version;
 
import java.util.HashSet;
import java.util.Set;
import java.util.TreeMap;
import org.turro.attach.entity.Attachment;
 
public class AttachVersionMap extends TreeMap<String, AttachVersionSet> {
 
  public void addAttachment(Attachment attachment) {
    AttachVersionSet avs = get(attachment.getFileName());
    if(avs == null) {
      avs = new AttachVersionSet();
      put(attachment.getFileName(), avs);
    }
    avs.add(attachment);
  }
 
  public Set<Attachment> getVersionedAttachments() {
    HashSet<Attachment> set = new HashSet<Attachment>();
    for(String s : keySet()) {
      set.add(get(s).first());
    }
    return set;
  }
 
}