IssueDetailComparator.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.dossier.issue;
 
import java.util.Comparator;
import java.util.Date;
import org.turro.attach.entity.Attachment;
import org.turro.contacts.CommentIt;
import org.turro.contacts.StarIt;
import org.turro.contacts.VoteIt;
import org.turro.dossier.entity.IssueComment;
import org.turro.dossier.entity.IssuePredecessor;
import org.turro.util.CompareUtil;
 
public class IssueDetailComparator implements Comparator {
 
  @Override
  public int compare(Object o1, Object o2) {
    int result = CompareUtil.compare(getDate(o1), getDate(o2));
    if(result == 0) {
      result = CompareUtil.compare(getDescription(o1), getDescription(o2));
    }
    if(result == 0) {
      result = CompareUtil.compare(getId(o1), getId(o2));
    }
    return result;
  }
 
  private long getId(Object obj) {
    if(obj instanceof IssueComment) {
      return ((IssueComment) obj).getId();
    } else if(obj instanceof IssuePredecessor) {
      return ((IssuePredecessor) obj).getId();
    } else if(obj instanceof Attachment) {
      return ((Attachment) obj).getId();
    } else if(obj instanceof CommentIt) {
      return ((CommentIt) obj).getDateCreation().getTime();
    } else if(obj instanceof StarIt) {
      return ((StarIt) obj).getDateCreation().getTime();
    } else if(obj instanceof VoteIt) {
      return ((VoteIt) obj).getDateCreation().getTime();
    }
    return 0;
  }
 
  private Date getDate(Object obj) {
    if(obj instanceof IssueComment) {
      return ((IssueComment) obj).getModification();
    } else if(obj instanceof IssuePredecessor) {
      return ((IssuePredecessor) obj).getCreation();
    } else if(obj instanceof Attachment) {
      return ((Attachment) obj).getModification();
    } else if(obj instanceof CommentIt) {
      return ((CommentIt) obj).getDateCreation();
    } else if(obj instanceof StarIt) {
      return ((StarIt) obj).getDateCreation();
    } else if(obj instanceof VoteIt) {
      return ((VoteIt) obj).getDateCreation();
    }
    return null;
  }
 
  private String getDescription(Object obj) {
    if(obj instanceof IssueComment) {
      return ((IssueComment) obj).getComment();
    } else if(obj instanceof IssuePredecessor) {
      return ((IssuePredecessor) obj).getFullDescription();
    } else if(obj instanceof Attachment) {
      return ((Attachment) obj).getFileName();
    } else if(obj instanceof CommentIt) {
      return ((CommentIt) obj).getId();
    } else if(obj instanceof StarIt) {
      return ((StarIt) obj).getId();
    } else if(obj instanceof VoteIt) {
      return ((VoteIt) obj).getId();
    }
    return null;
  }
 
}