Rrd4jUtilTest.java

/*
 *
 * Copyright (c) void.fm
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright notice, this list
 * of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice, this
 * list of conditions and the following disclaimer in the documentation and/or
 * other materials provided with the distribution.
 *
 * Neither the name void.fm nor the names of its contributors may be
 * used to endorse or promote products derived from this software without specific
 * prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */
package etm.contrib.rrd.rrd4j;

import junit.framework.TestCase;
import org.rrd4j.core.RrdDb;
import org.rrd4j.core.Util;

import java.io.File;
import java.net.URL;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

/**
 * Tests the rrd4j util methods.
 *
 * @author void.fm
 * @version $Revision$
 */
public class Rrd4jUtilTest extends TestCase {

  public void testCreateDb() throws Exception {
    URL resource = Thread.currentThread().getContextClassLoader().getResource("etm/contrib/rrd/rrd4j/resources/basic_db_template.xml");

    File path = File.createTempFile("test", ".rrd");

    try {
      path.delete();
      Rrd4jUtil rrd4jUtil = new Rrd4jUtil();
      rrd4jUtil.createRrdDb(resource, path, null);
      assertTrue(path.exists());

      RrdDb db = new RrdDb(path.getAbsolutePath(), true);
      assertEquals(4, db.getDsCount());
      db.close();

    } finally {
      if (path.exists()) {
        path.delete();
      }
    }
  }

  public void testCreateImage() throws Exception {
    URL dbResource = Thread.currentThread().getContextClassLoader().getResource("etm/contrib/rrd/rrd4j/resources/basic_db_template.xml");
    URL imageResource = Thread.currentThread().getContextClassLoader().getResource("etm/contrib/rrd/rrd4j/template/graph/average-and-tx-template.xml");

    File dbPath = File.createTempFile("test", ".rrd");
    File imagePath = File.createTempFile("test", ".png");

    try {
      dbPath.delete();
      imagePath.delete();
      Rrd4jUtil rrd4jUtil = new Rrd4jUtil();
      rrd4jUtil.createRrdDb(dbResource, dbPath, null);

      Map map = new HashMap();
      map.put("imagetitle", "test image");

      long intervalend = Util.getTimestamp(new Date());
      long intervalstart = intervalend - 60 * 60;

      rrd4jUtil.createGraph(imageResource, dbPath, imagePath, intervalstart, intervalend, map);

      assertTrue(imagePath.exists());
    } finally {
      if (imagePath.exists()) {
        imagePath.delete();
      }
      if (dbPath.exists()) {
        dbPath.delete();
      }
    }
  }

}