Java tutorial
/* * * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * */ package org.apache.metron.profiler.hbase; import org.apache.commons.collections.CollectionUtils; import org.apache.storm.tuple.Tuple; import org.apache.metron.profiler.ProfileMeasurement; import org.apache.metron.profiler.ProfilePeriod; import org.apache.metron.profiler.hbase.SaltyRowKeyBuilder; import org.junit.Assert; import org.junit.Before; import org.junit.Test; import java.nio.ByteBuffer; import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; import java.util.Formatter; import java.util.List; import java.util.concurrent.TimeUnit; import static org.hamcrest.core.IsEqual.equalTo; import static org.junit.Assert.assertThat; import static org.mockito.Matchers.eq; import static org.mockito.Mockito.mock; import static org.mockito.Mockito.when; /** * Tests the SaltyRowKeyBuilder. */ public class SaltyRowKeyBuilderTest { private static final int saltDivisor = 1000; private static final long periodDuration = 15; private static final TimeUnit periodUnits = TimeUnit.MINUTES; private SaltyRowKeyBuilder rowKeyBuilder; private ProfileMeasurement measurement; private Tuple tuple; /** * Thu, Aug 25 2016 13:27:10 GMT */ private long AUG2016 = 1472131630748L; @Before public void setup() throws Exception { // a profile measurement measurement = new ProfileMeasurement().withProfileName("profile").withEntity("entity").withPeriod(AUG2016, periodDuration, periodUnits); // the tuple will contain the original message tuple = mock(Tuple.class); when(tuple.getValueByField(eq("measurement"))).thenReturn(measurement); rowKeyBuilder = new SaltyRowKeyBuilder(saltDivisor, periodDuration, periodUnits); } /** * Build a row key that includes only one group. */ @Test public void testRowKeyWithOneGroup() throws Exception { // setup measurement.withGroups(Arrays.asList("group1")); // the expected row key ByteBuffer buffer = ByteBuffer.allocate(100) .put(SaltyRowKeyBuilder.getSalt(measurement.getPeriod(), saltDivisor)) .put(measurement.getProfileName().getBytes()).put(measurement.getEntity().getBytes()) .put("group1".getBytes()).putLong(1635701L); buffer.flip(); final byte[] expected = new byte[buffer.limit()]; buffer.get(expected, 0, buffer.limit()); // validate byte[] actual = rowKeyBuilder.rowKey(measurement); Assert.assertTrue(Arrays.equals(expected, actual)); } /** * Build a row key that includes two groups. */ @Test public void testRowKeyWithTwoGroups() throws Exception { // setup measurement.withGroups(Arrays.asList("group1", "group2")); // the expected row key ByteBuffer buffer = ByteBuffer.allocate(100) .put(SaltyRowKeyBuilder.getSalt(measurement.getPeriod(), saltDivisor)) .put(measurement.getProfileName().getBytes()).put(measurement.getEntity().getBytes()) .put("group1".getBytes()).put("group2".getBytes()).putLong(1635701L); buffer.flip(); final byte[] expected = new byte[buffer.limit()]; buffer.get(expected, 0, buffer.limit()); // validate byte[] actual = rowKeyBuilder.rowKey(measurement); Assert.assertTrue(Arrays.equals(expected, actual)); } /** * Build a row key that includes a single group that is an integer. */ @Test public void testRowKeyWithOneIntegerGroup() throws Exception { // setup measurement.withGroups(Arrays.asList(200)); // the expected row key ByteBuffer buffer = ByteBuffer.allocate(100) .put(SaltyRowKeyBuilder.getSalt(measurement.getPeriod(), saltDivisor)) .put(measurement.getProfileName().getBytes()).put(measurement.getEntity().getBytes()) .put("200".getBytes()).putLong(1635701L); buffer.flip(); final byte[] expected = new byte[buffer.limit()]; buffer.get(expected, 0, buffer.limit()); // validate byte[] actual = rowKeyBuilder.rowKey(measurement); Assert.assertTrue(Arrays.equals(expected, actual)); } /** * Build a row key that includes a single group that is an integer. */ @Test public void testRowKeyWithMixedGroups() throws Exception { // setup measurement.withGroups(Arrays.asList(200, "group1")); // the expected row key ByteBuffer buffer = ByteBuffer.allocate(100) .put(SaltyRowKeyBuilder.getSalt(measurement.getPeriod(), saltDivisor)) .put(measurement.getProfileName().getBytes()).put(measurement.getEntity().getBytes()) .put("200".getBytes()).put("group1".getBytes()).putLong(1635701L); buffer.flip(); final byte[] expected = new byte[buffer.limit()]; buffer.get(expected, 0, buffer.limit()); // validate byte[] actual = rowKeyBuilder.rowKey(measurement); Assert.assertTrue(Arrays.equals(expected, actual)); } /** * Build a row key that does not include any groups. */ @Test public void testRowKeyWithNoGroup() throws Exception { // setup measurement.withGroups(Collections.emptyList()); // the expected row key ByteBuffer buffer = ByteBuffer.allocate(100) .put(SaltyRowKeyBuilder.getSalt(measurement.getPeriod(), saltDivisor)) .put(measurement.getProfileName().getBytes()).put(measurement.getEntity().getBytes()) .putLong(1635701L); buffer.flip(); final byte[] expected = new byte[buffer.limit()]; buffer.get(expected, 0, buffer.limit()); // validate byte[] actual = rowKeyBuilder.rowKey(measurement); Assert.assertTrue(Arrays.equals(expected, actual)); } /** * `rowKeys` should return all of the row keys needed to retrieve the profile values over a given time horizon. */ @Test public void testRowKeys() throws Exception { int hoursAgo = 1; // setup List<Object> groups = Collections.emptyList(); rowKeyBuilder = new SaltyRowKeyBuilder(saltDivisor, periodDuration, periodUnits); // a dummy profile measurement long now = System.currentTimeMillis(); long oldest = now - TimeUnit.HOURS.toMillis(hoursAgo); ProfileMeasurement m = new ProfileMeasurement().withProfileName("profile").withEntity("entity") .withPeriod(oldest, periodDuration, periodUnits).withProfileValue(22); // generate a list of expected keys List<byte[]> expectedKeys = new ArrayList<>(); for (int i = 0; i < (hoursAgo * 4) + 1; i++) { // generate the expected key byte[] rk = rowKeyBuilder.rowKey(m); expectedKeys.add(rk); // advance to the next period ProfilePeriod next = m.getPeriod().next(); m = new ProfileMeasurement().withProfileName("profile").withEntity("entity") .withPeriod(next.getStartTimeMillis(), periodDuration, periodUnits); } // execute List<byte[]> actualKeys = rowKeyBuilder.rowKeys(measurement.getProfileName(), measurement.getEntity(), groups, oldest, now); // validate - expectedKeys == actualKeys for (int i = 0; i < actualKeys.size(); i++) { byte[] actual = actualKeys.get(i); byte[] expected = expectedKeys.get(i); assertThat(actual, equalTo(expected)); } } private void printBytes(byte[] bytes) { StringBuilder sb = new StringBuilder(bytes.length * 2); Formatter formatter = new Formatter(sb); for (byte b : bytes) { formatter.format("%02x ", b); } System.out.println(sb.toString()); } }