<!-- see o.a.m.plugin.descriptor.Requirement -->
      <fields>
        <field>
          <name>role</name>
          <required>true</required>
          <type>String</type>
          <description></description>
        </field>
        <field xml.tagName="role-hint">
          <name>roleHint</name>
          <type>String</type>
          <description></description>
        </field>

            return null;
        }

        @Override
        public String getRemoteUser() {
            return null;
        }

        @Override
        public boolean isUserInRole(String role) {
            return false;
        }

        @Override
        public Principal getUserPrincipal() {
            return null;
        }

        @Override

Esto es muy útil cuando necesitas:

* Tener lógica compartida (la misma lógica de código una y otra vez).
* Compartir conexiones a bases de datos.
* Imponer seguridad, autenticación, requisitos de roles, etc.
* Y muchas otras cosas...

Todo esto, mientras minimizas la repetición de código.

## Primeros Pasos { #first-steps }

Veamos un ejemplo muy simple. Será tan simple que no es muy útil, por ahora.

            public String getIndexFieldPrimaryTerm() {
                return "primary_term";
            }

            @Override
            public String getIndexFieldRole() {
                return "role";
            }

            @Override
            public String getIndexFieldSeqNo() {
                return "seq_no";
            }

            @Override

d","name","nonce","noshade","novalidate","nowrap","open","optimum","part","pattern","placeholder","playsinline","popover","popovertarget","popovertargetaction","poster","preload","pubdate","radiogroup","readonly","rel","required","rev","reversed","role","rows","rowspan","spellcheck","scope","selected","shape","size","sizes","slot","span","srclang","start","src","srcset","step","style","summary","tabindex","title","translate","type","usemap","valign","value","width","wrap","xmlns","slot"]),P=i(["...

 *      <td>No. Default: <code>java</code></td>
 *      <td>The implementation language for this Mojo (Java, beanshell, etc.).</td>
 *  </tr>
 *  <tr>
 *      <td>configurator</td>
 *      <td>configurator = "&lt;role-hint&gt;"</td>
 *      <td>No</td>
 *      <td>The configurator type to use when injecting parameter values into this Mojo. The value is normally

            mergeTypes(typeTable, model)
        } else if (title.matches('(?i).* blocks')) {
            mergeBlocks(typeTable, model)
        } else {
            return
        }

        typeTable['@role'] = 'dslTypes'
    }

    def mergeBlocks(Element blocksTable, DslDocModel model) {
        blocksTable.addFirst {
            thead {
                tr {
                    td('Block')

- Simpler implementation than [AWS S3 Bucket Replication Config](https://docs.aws.amazon.com/AmazonS3/latest/dev/replication-add-config.html) with requirements such as IAM Role, AccessControlTranslation, Metrics and SourceSelectionCriteria are not needed with MinIO.
- Active-Active replication
- Multi destination replication

## How to use?

**Via Admin UI**:
1. Navigate to **System > Backup**
2. Select configuration items to export:
   - Web Crawling Config
   - File Crawling Config
   - Data Store Config
   - Scheduled Jobs
   - Users and Roles
   - System Settings
3. Click **Export**
4. Download JSON file

**Via API**:
```bash
# Export all configurations
curl -X GET "http://localhost:8080/api/admin/backup/export" \
  -u admin:admin \

        nestedMap.put("name", "John");
        nestedMap.put("role", "Developer");
        params.put("user", nestedMap);

        assertEquals("John", groovyEngine.evaluate("return user.name", params));
        assertEquals("Developer", groovyEngine.evaluate("return user.role", params));
    }

    /**
     * Test that arrays can be passed and manipulated
     */
    @Test