Examples with RRDv3 org.opennms.netmgt.rrd.model.v3.RRDv3 used on opensource projects

Example 21 with RRDv3

use of org.opennms.netmgt.rrd.model.v3.RRDv3 in project opennms by OpenNMS.

the class RrdMergeIT method testRrdMerge.

/**
 * Test RRD merge.
 * <p>Both test XML contains data from different range of times, and the value is always increasing.</p>
 *
 * @throws Exception the exception
 */
@Test
public void testRrdMerge() throws Exception {
    RRDv3 tempA = JaxbUtils.unmarshal(RRDv3.class, new File("src/test/resources/rrd-tempA-rrd.xml"));
    RRDv3 tempB = JaxbUtils.unmarshal(RRDv3.class, new File("src/test/resources/rrd-tempB-rrd.xml"));
    // Retrieve a list of the time stamps of the rows with data from tempA.rrd
    // Verify the max value
    Double value = Double.NEGATIVE_INFINITY;
    List<Long> timestampsA = new ArrayList<>();
    for (RRA rra : tempA.getRras()) {
        for (Row row : rra.getRows()) {
            if (!row.isNan()) {
                timestampsA.add(tempA.findTimestampByRow(rra, row));
                Double current = row.getValues().get(0);
                if (current > value) {
                    value = current;
                }
            }
        }
    }
    Assert.assertEquals(new Double(3.0), value);
    // Retrieve a list of the time stamps of the rows with data from tempB.rrd
    value = Double.NEGATIVE_INFINITY;
    List<Long> timestampsB = new ArrayList<>();
    for (RRA rra : tempB.getRras()) {
        for (Row row : rra.getRows()) {
            if (!row.isNan()) {
                timestampsB.add(tempB.findTimestampByRow(rra, row));
                Double current = row.getValues().get(0);
                if (current > value) {
                    value = current;
                }
            }
        }
    }
    Assert.assertEquals(new Double(18.0), value);
    // Verify that all the timestamps on timestampsA are different than the timestamps from timestampsB
    for (Long l : timestampsA) {
        if (timestampsB.contains(l)) {
            Assert.fail("The timestampsB should not contain any timestamp from timestampsA");
        }
    }
    for (Long l : timestampsB) {
        if (timestampsA.contains(l)) {
            Assert.fail("The timestampsA should not contain any timestamp from timestampsB");
        }
    }
    // Perform the Merge Operation, merging the data from tempA.rrd to tempB.rrd
    tempB.merge(tempA);
    // Retrieve the list of the non NaN rows from the updated tempB.rrd
    value = Double.NEGATIVE_INFINITY;
    List<Long> timestampsFinal = new ArrayList<>();
    for (RRA rra : tempB.getRras()) {
        for (Row row : rra.getRows()) {
            if (!row.isNan()) {
                timestampsFinal.add(tempB.findTimestampByRow(rra, row));
                Double current = row.getValues().get(0);
                if (current > value) {
                    value = current;
                }
            }
        }
    }
    Assert.assertEquals(new Double(18.0), value);
    // Verify that timestampsFinal contains timestampsA and timestampsB
    Assert.assertTrue(timestampsFinal.containsAll(timestampsA));
    Assert.assertTrue(timestampsFinal.containsAll(timestampsB));
}