<commit_before>/**
 * Copyright © 2016-2021 The Thingsboard Authors
 *
 * Licensed 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.thingsboard.server.common.data.id;

import java.util.UUID;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.annotation.JsonProperty;
import io.swagger.annotations.ApiModelProperty;
import org.thingsboard.server.common.data.EntityType;

public final class TenantId extends UUIDBased implements EntityId {

    @JsonIgnore
    public static final TenantId SYS_TENANT_ID = new TenantId(EntityId.NULL_UUID);

    private static final long serialVersionUID = 1L;

    @JsonCreator
    public TenantId(@JsonProperty("id") UUID id) {
        super(id);
    }

    @ApiModelProperty(position = 2, required = true, value = "string", example = "TENANT", allowableValues = "TENANT")
    @Override
    public EntityType getEntityType() {
        return EntityType.TENANT;
    }
}<commit_msg>TenantId factory method fromUUID added to reduce optimize TenantId instances count in heap memory. Factory as default @JsonCreator<commit_after>/**
 * Copyright © 2016-2021 The Thingsboard Authors
 *
 * Licensed 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.thingsboard.server.common.data.id;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.annotation.JsonProperty;
import io.swagger.annotations.ApiModelProperty;
import org.springframework.util.ConcurrentReferenceHashMap;
import org.springframework.util.ConcurrentReferenceHashMap.ReferenceType;
import org.thingsboard.server.common.data.EntityType;

import java.util.UUID;

public final class TenantId extends UUIDBased implements EntityId {

    @JsonIgnore
    public static final TenantId SYS_TENANT_ID = new TenantId(EntityId.NULL_UUID);

    static final ConcurrentReferenceHashMap<UUID, TenantId> tenants = new ConcurrentReferenceHashMap<>(16, ReferenceType.SOFT);

    private static final long serialVersionUID = 1L;

    @JsonCreator
    public static TenantId fromUUID(@JsonProperty("id") UUID id) {
        return tenants.computeIfAbsent(id, TenantId::new);
    }

    public TenantId(UUID id) {
        super(id);
    }

    @ApiModelProperty(position = 2, required = true, value = "string", example = "TENANT", allowableValues = "TENANT")
    @Override
    public EntityType getEntityType() {
        return EntityType.TENANT;
    }
}
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