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/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.cluster;
import org.elasticsearch.action.admin.indices.create.CreateIndexClusterStateUpdateRequest;
import org.elasticsearch.cluster.metadata.IndexTemplateFilter;
import org.elasticsearch.cluster.metadata.IndexTemplateMetaData;
import org.elasticsearch.cluster.routing.RoutingNode;
import org.elasticsearch.cluster.routing.ShardRouting;
import org.elasticsearch.cluster.routing.allocation.FailedRerouteAllocation;
import org.elasticsearch.cluster.routing.allocation.RoutingAllocation;
import org.elasticsearch.cluster.routing.allocation.StartedRerouteAllocation;
import org.elasticsearch.cluster.routing.allocation.allocator.BalancedShardsAllocator;
import org.elasticsearch.cluster.routing.allocation.allocator.ShardsAllocator;
import org.elasticsearch.cluster.routing.allocation.decider.AllocationDecider;
import org.elasticsearch.cluster.routing.allocation.decider.EnableAllocationDecider;
import org.elasticsearch.cluster.settings.DynamicSettings;
import org.elasticsearch.cluster.settings.Validator;
import org.elasticsearch.common.inject.ModuleTestCase;
import org.elasticsearch.common.settings.*;
import org.elasticsearch.index.settings.IndexDynamicSettings;
public class ClusterModuleTests extends ModuleTestCase {
public static class FakeAllocationDecider extends AllocationDecider {
protected FakeAllocationDecider(Settings settings) {
super(settings);
}
}
static class FakeShardsAllocator implements ShardsAllocator {
@Override
public void applyStartedShards(StartedRerouteAllocation allocation) {}
@Override
public void applyFailedShards(FailedRerouteAllocation allocation) {}
@Override
public boolean allocateUnassigned(RoutingAllocation allocation) {
return false;
}
@Override
public boolean rebalance(RoutingAllocation allocation) {
return false;
}
@Override
public boolean move(ShardRouting shardRouting, RoutingNode node, RoutingAllocation allocation) {
return false;
}
}
static class FakeIndexTemplateFilter implements IndexTemplateFilter {
@Override
public boolean apply(CreateIndexClusterStateUpdateRequest request, IndexTemplateMetaData template) {
return false;
}
}
public void testRegisterClusterDynamicSettingDuplicate() {
final SettingsFilter settingsFilter = new SettingsFilter(Settings.EMPTY);
SettingsModule module = new SettingsModule(Settings.EMPTY, settingsFilter);
try {
module.registerSetting(EnableAllocationDecider.CLUSTER_ROUTING_ALLOCATION_ENABLE_SETTING);
} catch (IllegalArgumentException e) {
assertEquals(e.getMessage(), "Cannot register setting [" + EnableAllocationDecider.CLUSTER_ROUTING_ALLOCATION_ENABLE_SETTING.getKey() + "] twice");
}
}
public void testRegisterClusterDynamicSetting() {
final SettingsFilter settingsFilter = new SettingsFilter(Settings.EMPTY);
SettingsModule module = new SettingsModule(Settings.EMPTY, settingsFilter);
module.registerSetting(Setting.boolSetting("foo.bar", false, true, Setting.Scope.CLUSTER));
assertInstanceBinding(module, ClusterSettings.class, service -> service.hasDynamicSetting("foo.bar"));
}
public void testRegisterIndexDynamicSettingDuplicate() {
ClusterModule module = new ClusterModule(Settings.EMPTY);
try {
module.registerIndexDynamicSetting(EnableAllocationDecider.INDEX_ROUTING_ALLOCATION_ENABLE, Validator.EMPTY);
} catch (IllegalArgumentException e) {
assertEquals(e.getMessage(), "Cannot register setting [" + EnableAllocationDecider.INDEX_ROUTING_ALLOCATION_ENABLE + "] twice");
}
}
public void testRegisterIndexDynamicSetting() {
ClusterModule module = new ClusterModule(Settings.EMPTY);
module.registerIndexDynamicSetting("foo.bar", Validator.EMPTY);
assertInstanceBindingWithAnnotation(module, DynamicSettings.class, dynamicSettings -> dynamicSettings.hasDynamicSetting("foo.bar"), IndexDynamicSettings.class);
}
public void testRegisterAllocationDeciderDuplicate() {
ClusterModule module = new ClusterModule(Settings.EMPTY);
try {
module.registerAllocationDecider(EnableAllocationDecider.class);
} catch (IllegalArgumentException e) {
assertEquals(e.getMessage(), "Can't register the same [allocation_decider] more than once for [" + EnableAllocationDecider.class.getName() + "]");
}
}
public void testRegisterAllocationDecider() {
ClusterModule module = new ClusterModule(Settings.EMPTY);
module.registerAllocationDecider(FakeAllocationDecider.class);
assertSetMultiBinding(module, AllocationDecider.class, FakeAllocationDecider.class);
}
public void testRegisterShardsAllocator() {
Settings settings = Settings.builder().put(ClusterModule.SHARDS_ALLOCATOR_TYPE_KEY, "custom").build();
ClusterModule module = new ClusterModule(settings);
module.registerShardsAllocator("custom", FakeShardsAllocator.class);
assertBinding(module, ShardsAllocator.class, FakeShardsAllocator.class);
}
public void testRegisterShardsAllocatorAlreadyRegistered() {
ClusterModule module = new ClusterModule(Settings.EMPTY);
try {
module.registerShardsAllocator(ClusterModule.BALANCED_ALLOCATOR, FakeShardsAllocator.class);
} catch (IllegalArgumentException e) {
assertEquals(e.getMessage(), "Can't register the same [shards_allocator] more than once for [balanced]");
}
}
public void testUnknownShardsAllocator() {
Settings settings = Settings.builder().put(ClusterModule.SHARDS_ALLOCATOR_TYPE_KEY, "dne").build();
ClusterModule module = new ClusterModule(settings);
assertBindingFailure(module, "Unknown [shards_allocator]");
}
public void testEvenShardsAllocatorBackcompat() {
Settings settings = Settings.builder()
.put(ClusterModule.SHARDS_ALLOCATOR_TYPE_KEY, ClusterModule.EVEN_SHARD_COUNT_ALLOCATOR).build();
ClusterModule module = new ClusterModule(settings);
assertBinding(module, ShardsAllocator.class, BalancedShardsAllocator.class);
}
public void testRegisterIndexTemplateFilterDuplicate() {
ClusterModule module = new ClusterModule(Settings.EMPTY);
try {
module.registerIndexTemplateFilter(FakeIndexTemplateFilter.class);
module.registerIndexTemplateFilter(FakeIndexTemplateFilter.class);
} catch (IllegalArgumentException e) {
assertEquals(e.getMessage(), "Can't register the same [index_template_filter] more than once for [" + FakeIndexTemplateFilter.class.getName() + "]");
}
}
public void testRegisterIndexTemplateFilter() {
ClusterModule module = new ClusterModule(Settings.EMPTY);
module.registerIndexTemplateFilter(FakeIndexTemplateFilter.class);
assertSetMultiBinding(module, IndexTemplateFilter.class, FakeIndexTemplateFilter.class);
}
}
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