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/*
* SonarQube
* Copyright (C) 2009-2025 SonarSource SA
* mailto:info AT sonarsource DOT com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.process.cluster.health;
import com.google.common.collect.ImmutableSet;
import java.util.HashMap;
import java.util.Map;
import java.util.Random;
import java.util.UUID;
import java.util.stream.IntStream;
import org.junit.Rule;
import org.junit.Test;
import org.slf4j.event.Level;
import org.sonar.process.LoggingRule;
import org.sonar.process.cluster.hz.HazelcastMember;
import static java.util.Collections.singleton;
import static org.apache.commons.lang3.RandomStringUtils.secure;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.assertThatThrownBy;
import static org.mockito.Mockito.doReturn;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
import static org.sonar.process.cluster.health.NodeDetails.newNodeDetailsBuilder;
import static org.sonar.process.cluster.health.NodeHealth.newNodeHealthBuilder;
public class SharedHealthStateImplTest {
private static final String MAP_SQ_HEALTH_STATE = "sq_health_state";
@Rule
public LoggingRule logging = new LoggingRule(SharedHealthStateImpl.class);
private final Random random = new Random();
private long clusterTime = 99 + Math.abs(random.nextInt(9621));
private HazelcastMember hazelcastMember = mock(HazelcastMember.class);
private SharedHealthStateImpl underTest = new SharedHealthStateImpl(hazelcastMember);
@Test
public void write_fails_with_NPE_if_arg_is_null() {
assertThatThrownBy(() -> underTest.writeMine(null))
.isInstanceOf(NullPointerException.class)
.hasMessage("nodeHealth can't be null");
}
@Test
public void write_put_arg_into_map_sq_health_state_under_current_client_uuid() {
NodeHealth nodeHealth = randomNodeHealth();
Map<UUID, TimestampedNodeHealth> map = new HashMap<>();
doReturn(map).when(hazelcastMember).getReplicatedMap(MAP_SQ_HEALTH_STATE);
long clusterTime = random.nextLong();
UUID uuid = UUID.randomUUID();
when(hazelcastMember.getUuid()).thenReturn(uuid);
when(hazelcastMember.getClusterTime()).thenReturn(clusterTime);
underTest.writeMine(nodeHealth);
assertThat(map).hasSize(1);
assertThat(map.get(uuid)).isEqualTo(new TimestampedNodeHealth(nodeHealth, clusterTime));
assertThat(logging.getLogs()).isEmpty();
}
@Test
public void write_logs_map_sq_health_state_content_and_NodeHealth_to_be_added_if_TRACE() {
logging.setLevel(Level.TRACE);
NodeHealth newNodeHealth = randomNodeHealth();
Map<String, TimestampedNodeHealth> map = new HashMap<>();
map.put(secure().nextAlphanumeric(4), new TimestampedNodeHealth(randomNodeHealth(), random.nextLong()));
doReturn(new HashMap<>(map)).when(hazelcastMember).getReplicatedMap(MAP_SQ_HEALTH_STATE);
UUID uuid = UUID.randomUUID();
when(hazelcastMember.getUuid()).thenReturn(uuid);
underTest.writeMine(newNodeHealth);
assertThat(logging.getLogs()).hasSize(1);
assertThat(logging.hasLog(Level.TRACE, "Reading " + map + " and adding " + newNodeHealth)).isTrue();
}
@Test
public void readAll_returns_all_NodeHealth_in_map_sq_health_state_for_existing_client_uuids_aged_less_than_30_seconds() {
NodeHealth[] nodeHealths = IntStream.range(0, 1 + random.nextInt(6)).mapToObj(i -> randomNodeHealth()).toArray(NodeHealth[]::new);
Map<UUID, TimestampedNodeHealth> allNodeHealths = new HashMap<>();
Map<UUID, NodeHealth> expected = new HashMap<>();
for (NodeHealth nodeHealth : nodeHealths) {
UUID memberUuid = UUID.randomUUID();
TimestampedNodeHealth timestampedNodeHealth = new TimestampedNodeHealth(nodeHealth, clusterTime - random.nextInt(30 * 1000));
allNodeHealths.put(memberUuid, timestampedNodeHealth);
if (random.nextBoolean()) {
expected.put(memberUuid, nodeHealth);
}
}
doReturn(allNodeHealths).when(hazelcastMember).getReplicatedMap(MAP_SQ_HEALTH_STATE);
when(hazelcastMember.getMemberUuids()).thenReturn(expected.keySet());
when(hazelcastMember.getClusterTime()).thenReturn(clusterTime);
assertThat(underTest.readAll())
.containsOnly(expected.values().toArray(new NodeHealth[0]));
assertThat(logging.getLogs()).isEmpty();
}
@Test
public void readAll_ignores_NodeHealth_of_30_seconds_before_cluster_time() {
NodeHealth nodeHealth = randomNodeHealth();
Map<UUID, TimestampedNodeHealth> map = new HashMap<>();
UUID memberUuid = UUID.randomUUID();
TimestampedNodeHealth timestampedNodeHealth = new TimestampedNodeHealth(nodeHealth, clusterTime - 30 * 1000);
map.put(memberUuid, timestampedNodeHealth);
doReturn(map).when(hazelcastMember).getReplicatedMap(MAP_SQ_HEALTH_STATE);
when(hazelcastMember.getMemberUuids()).thenReturn(map.keySet());
when(hazelcastMember.getClusterTime()).thenReturn(clusterTime);
assertThat(underTest.readAll()).isEmpty();
}
@Test
public void readAll_ignores_NodeHealth_of_more_than_30_seconds_before_cluster_time() {
NodeHealth nodeHealth = randomNodeHealth();
Map<UUID, TimestampedNodeHealth> map = new HashMap<>();
UUID memberUuid = UUID.randomUUID();
TimestampedNodeHealth timestampedNodeHealth = new TimestampedNodeHealth(nodeHealth, clusterTime - 30 * 1000 - random.nextInt(99));
map.put(memberUuid, timestampedNodeHealth);
doReturn(map).when(hazelcastMember).getReplicatedMap(MAP_SQ_HEALTH_STATE);
when(hazelcastMember.getMemberUuids()).thenReturn(map.keySet());
when(hazelcastMember.getClusterTime()).thenReturn(clusterTime);
assertThat(underTest.readAll()).isEmpty();
}
@Test
public void readAll_logs_map_sq_health_state_content_and_the_content_effectively_returned_if_TRACE() {
logging.setLevel(Level.TRACE);
Map<UUID, TimestampedNodeHealth> map = new HashMap<>();
UUID uuid = UUID.randomUUID();
NodeHealth nodeHealth = randomNodeHealth();
map.put(uuid, new TimestampedNodeHealth(nodeHealth, clusterTime - 1));
when(hazelcastMember.getClusterTime()).thenReturn(clusterTime);
when(hazelcastMember.getMemberUuids()).thenReturn(singleton(uuid));
doReturn(map).when(hazelcastMember).getReplicatedMap(MAP_SQ_HEALTH_STATE);
underTest.readAll();
assertThat(logging.getLogs()).hasSize(1);
assertThat(logging.hasLog(Level.TRACE, "Reading " + new HashMap<>(map) + " and keeping " + singleton(nodeHealth))).isTrue();
}
@Test
public void readAll_logs_message_for_each_non_existing_member_ignored_if_TRACE() {
logging.setLevel(Level.TRACE);
Map<String, TimestampedNodeHealth> map = new HashMap<>();
String memberUuid1 = secure().nextAlphanumeric(44);
String memberUuid2 = secure().nextAlphanumeric(44);
map.put(memberUuid1, new TimestampedNodeHealth(randomNodeHealth(), clusterTime - 1));
map.put(memberUuid2, new TimestampedNodeHealth(randomNodeHealth(), clusterTime - 1));
when(hazelcastMember.getClusterTime()).thenReturn(clusterTime);
doReturn(map).when(hazelcastMember).getReplicatedMap(MAP_SQ_HEALTH_STATE);
underTest.readAll();
assertThat(logging.getLogs()).hasSize(3);
assertThat(logging.getLogs(Level.TRACE))
.containsOnly(
"Reading " + new HashMap<>(map) + " and keeping []",
"Ignoring NodeHealth of member " + memberUuid1 + " because it is not part of the cluster at the moment",
"Ignoring NodeHealth of member " + memberUuid2 + " because it is not part of the cluster at the moment");
}
@Test
public void readAll_logs_message_for_each_timed_out_NodeHealth_ignored_if_TRACE() {
logging.setLevel(Level.TRACE);
Map<UUID, TimestampedNodeHealth> map = new HashMap<>();
UUID memberUuid1 = UUID.randomUUID();
UUID memberUuid2 = UUID.randomUUID();
map.put(memberUuid1, new TimestampedNodeHealth(randomNodeHealth(), clusterTime - 30 * 1000));
map.put(memberUuid2, new TimestampedNodeHealth(randomNodeHealth(), clusterTime - 30 * 1000));
doReturn(map).when(hazelcastMember).getReplicatedMap(MAP_SQ_HEALTH_STATE);
when(hazelcastMember.getMemberUuids()).thenReturn(ImmutableSet.of(memberUuid1, memberUuid2));
when(hazelcastMember.getClusterTime()).thenReturn(clusterTime);
underTest.readAll();
assertThat(logging.getLogs()).hasSize(3);
assertThat(logging.getLogs(Level.TRACE))
.containsOnly(
"Reading " + new HashMap<>(map) + " and keeping []",
"Ignoring NodeHealth of member " + memberUuid1 + " because it is too old",
"Ignoring NodeHealth of member " + memberUuid2 + " because it is too old");
}
@Test
public void clearMine_clears_entry_into_map_sq_health_state_under_current_client_uuid() {
Map<UUID, TimestampedNodeHealth> map = new HashMap<>();
UUID uuid = UUID.randomUUID();
map.put(uuid, new TimestampedNodeHealth());
doReturn(map).when(hazelcastMember).getReplicatedMap(MAP_SQ_HEALTH_STATE);
when(hazelcastMember.getUuid()).thenReturn(uuid);
underTest.clearMine();
assertThat(map).doesNotContainKey(uuid);
assertThat(logging.getLogs()).isEmpty();
}
@Test
public void clearMine_logs_map_sq_health_state_and_current_client_uuid_if_TRACE() {
logging.setLevel(Level.TRACE);
Map<UUID, TimestampedNodeHealth> map = new HashMap<>();
map.put(UUID.randomUUID(), new TimestampedNodeHealth(randomNodeHealth(), random.nextLong()));
doReturn(map).when(hazelcastMember).getReplicatedMap(MAP_SQ_HEALTH_STATE);
UUID uuid = UUID.randomUUID();
when(hazelcastMember.getUuid()).thenReturn(uuid);
underTest.clearMine();
assertThat(logging.getLogs()).hasSize(1);
assertThat(logging.hasLog(Level.TRACE, "Reading " + map + " and clearing for " + uuid)).isTrue();
}
private NodeHealth randomNodeHealth() {
return newNodeHealthBuilder()
.setStatus(NodeHealth.Status.values()[random.nextInt(NodeHealth.Status.values().length)])
.setDetails(newNodeDetailsBuilder()
.setType(random.nextBoolean() ? NodeDetails.Type.SEARCH : NodeDetails.Type.APPLICATION)
.setName(secure().nextAlphanumeric(30))
.setHost(secure().nextAlphanumeric(10))
.setPort(1 + random.nextInt(666))
.setStartedAt(1 + random.nextInt(852))
.build())
.build();
}
}
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