Andrew Shvayka
3 years ago
committed by
GitHub
GitHub
17 changed files with 251 additions and 25 deletions
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/** |
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* Copyright © 2016-2023 The Thingsboard Authors |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package org.thingsboard.server.common.transport.limits; |
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import com.github.benmanes.caffeine.cache.Cache; |
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import com.github.benmanes.caffeine.cache.Caffeine; |
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import com.github.benmanes.caffeine.cache.Expiry; |
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import lombok.extern.slf4j.Slf4j; |
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import org.jetbrains.annotations.NotNull; |
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import org.springframework.beans.factory.annotation.Value; |
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import org.springframework.stereotype.Service; |
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import org.thingsboard.server.queue.util.TbTransportComponent; |
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import java.util.concurrent.ThreadLocalRandom; |
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import java.util.concurrent.TimeUnit; |
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@Service |
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@TbTransportComponent |
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@Slf4j |
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public class DefaultEntityLimitsCache implements EntityLimitsCache { |
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private static final int DEVIATION = 10; |
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private final Cache<EntityLimitKey, Boolean> cache; |
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public DefaultEntityLimitsCache(@Value("${cache.entityLimits.timeToLiveInMinutes:5}") int ttl, |
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@Value("${cache.entityLimits.maxSize:100000}") int maxSize) { |
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// We use the 'random' expiration time to avoid peak loads.
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long mainPart = (TimeUnit.MINUTES.toNanos(ttl) / 100) * (100 - DEVIATION); |
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long randomPart = (TimeUnit.MINUTES.toNanos(ttl) / 100) * DEVIATION; |
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cache = Caffeine.newBuilder() |
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.expireAfter(new Expiry<EntityLimitKey, Boolean>() { |
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@Override |
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public long expireAfterCreate(@NotNull EntityLimitKey key, @NotNull Boolean value, long currentTime) { |
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return mainPart + (long) (randomPart * ThreadLocalRandom.current().nextDouble()); |
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} |
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@Override |
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public long expireAfterUpdate(@NotNull EntityLimitKey key, @NotNull Boolean value, long currentTime, long currentDuration) { |
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return currentDuration; |
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} |
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@Override |
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public long expireAfterRead(@NotNull EntityLimitKey key, @NotNull Boolean value, long currentTime, long currentDuration) { |
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return currentDuration; |
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} |
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}) |
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.maximumSize(maxSize) |
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.build(); |
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} |
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@Override |
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public boolean get(EntityLimitKey key) { |
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var result = cache.getIfPresent(key); |
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return result != null ? result : false; |
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} |
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@Override |
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public void put(EntityLimitKey key, boolean value) { |
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cache.put(key, value); |
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} |
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} |
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@ -0,0 +1,27 @@ |
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/** |
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* Copyright © 2016-2023 The Thingsboard Authors |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package org.thingsboard.server.common.transport.limits; |
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import lombok.Data; |
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import org.thingsboard.server.common.data.id.TenantId; |
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@Data |
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public class EntityLimitKey { |
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private final TenantId tenantId; |
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private final String deviceName; |
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} |
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@ -0,0 +1,24 @@ |
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/** |
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* Copyright © 2016-2023 The Thingsboard Authors |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package org.thingsboard.server.common.transport.limits; |
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public interface EntityLimitsCache { |
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boolean get(EntityLimitKey key); |
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void put(EntityLimitKey key, boolean value); |
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} |
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@ -0,0 +1,35 @@ |
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/** |
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* Copyright © 2016-2023 The Thingsboard Authors |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package org.thingsboard.server.dao.exception; |
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import lombok.Getter; |
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import org.thingsboard.server.common.data.EntityType; |
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import org.thingsboard.server.common.data.id.TenantId; |
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public class EntitiesLimitException extends DataValidationException { |
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private static final long serialVersionUID = -9211462514373279196L; |
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@Getter |
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private final TenantId tenantId; |
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@Getter |
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private final EntityType entityType; |
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public EntitiesLimitException(TenantId tenantId, EntityType entityType) { |
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super(entityType.getNormalName() + "s limit reached"); |
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this.tenantId = tenantId; |
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this.entityType = entityType; |
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} |
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} |
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