Afortunadamente, Pydantic proporciona una gran utilidad para manejar estas configuraciones provenientes de variables de entorno con <a href="https://docs.pydantic.dev/latest/concepts/pydantic_settings/" class="external-link" target="_blank">Pydantic: Settings management</a>.

### Instalar `pydantic-settings`

Primero, asegúrate de crear tu [entorno virtual](../virtual-environments.md){.internal-link target=_blank}, actívalo y luego instala el paquete `pydantic-settings`:

    private final Configuration config;
    private final int maxChannels;
    private final LoadBalancingStrategy loadBalancingStrategy;
    private final long healthCheckInterval;

    // Channel management
    private final ConcurrentMap<String, ChannelGroup> sessionChannels = new ConcurrentHashMap<>();
    private final ExecutorService channelExecutor;
    private final ScheduledExecutorService healthCheckExecutor;

 ```

Only the root/admin user can perform an SSE-S3 key rotation using the Admin-API via [mc](https://github.com/minio/mc). For more details about how to perform key management operations using the CLI refer to [mc admin guide](https://github.com/minio/mc/blob/master/docs/minio-admin-complete-guide.md) or run `mc admin kms key`.

#### Secure Erasure and Locking

import org.lastaflute.web.validation.VaErrorHook;
import org.lastaflute.web.validation.exception.ValidationErrorException;

import jakarta.annotation.Resource;

/**
 * Admin action for Mapping management.
 *
 */
public class AdminDictMappingAction extends FessAdminAction {

    /**
     * Default constructor.
     */
    public AdminDictMappingAction() {
        super();
    }

    /**

import org.lastaflute.web.response.render.RenderData;
import org.lastaflute.web.ruts.process.ActionRuntime;

import jakarta.annotation.Resource;

/**
 * Admin action for Label Type management.
 *
 */
public class AdminLabeltypeAction extends FessAdminAction {

    /**
     * Default constructor.
     */
    public AdminLabeltypeAction() {
        super();
    }

      other entities that control, are controlled by, or are under common
      control with that entity. For the purposes of this definition,
      "control" means (i) the power, direct or indirect, to cause the
      direction or management of such entity, whether by contract or
      otherwise, or (ii) ownership of fifty percent (50%) or more of the
      outstanding shares, or (iii) beneficial ownership of such entity.

      other entities that control, are controlled by, or are under common
      control with that entity. For the purposes of this definition,
      "control" means (i) the power, direct or indirect, to cause the
      direction or management of such entity, whether by contract or
      otherwise, or (ii) ownership of fifty percent (50%) or more of the
      outstanding shares, or (iii) beneficial ownership of such entity.

                    }
                }
            }
        }
        
        return results;
    }
}
```

### 7.2 Hierarchical Cache Management
```java
public class HierarchicalCacheManager {
    private final DirectoryLeaseManager leaseManager;
    private final Map<String, Set<String>> parentChildMap;
    

Fortunately, Pydantic provides a great utility to handle these settings coming from environment variables with <a href="https://docs.pydantic.dev/latest/concepts/pydantic_settings/" class="external-link" target="_blank">Pydantic: Settings management</a>.

### Install `pydantic-settings` { #install-pydantic-settings }

      other entities that control, are controlled by, or are under common
      control with that entity. For the purposes of this definition,
      "control" means (i) the power, direct or indirect, to cause the
      direction or management of such entity, whether by contract or
      otherwise, or (ii) ownership of fifty percent (50%) or more of the
      outstanding shares, or (iii) beneficial ownership of such entity.