<img src="/img/tutorial/bigger-applications/image01.png">

## Include the same router multiple times with different `prefix` { #include-the-same-router-multiple-times-with-different-prefix }

You can also use `.include_router()` multiple times with the *same* router using different prefixes.

    /** Prefix used to identify role-based permissions */
    protected String rolePrefix = "{role}";

    /** Prefix used to identify group-based permissions */
    protected String groupPrefix = "{group}";

    /** Prefix used to identify user-based permissions */
    protected String userPrefix = "{user}";

    /** Prefix used to identify allow permissions */

import org.gradle.internal.component.external.model.DefaultModuleComponentSelector
import org.gradle.kotlin.dsl.support.serviceOf

/**
 * A map from artifact name to a set of class name prefixes that should be kept.
 * Artifacts matched by this map will be minified to only contain the specified
 * classes and the classes they depend on. The classes are not relocated, they all

        assertEquals(emptyString, decoded);
    }

    @Test
    public void test_facet_prefix_usage() {
        // Test that facet prefixes can be used correctly
        String fieldName = "category";
        String encodedFieldName = BaseEncoding.base64().encode(fieldName.getBytes(StandardCharsets.UTF_8));

			want:   1,
			wantOK: true,
		},
		{
			name: "scientific",
			fields: fields{
				value: []byte("3e5"),
			},
			want:   0,
			wantOK: false,
		},
		{
			// No support for prefixes
			name: "hex",
			fields: fields{
				value: []byte("0xff"),
			},
			want:   0,
			wantOK: false,
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			v := &Value{

tiering. The data is moved to the remote tier in entirety, leaving only the object metadata on MinIO.

The data on the backend is stored under the `bucket/prefix` specified in the tier configuration with a custom name derived from a randomly generated uuid - e.g. `0b/c4/0bc4fab7-2daf-4d2f-8e39-5c6c6fb7e2d3`. The first two prefixes are characters 1-2,3-4 from the uuid. This format allows tiering to any cloud irrespective of whether the cloud in question supports versioning. The reference to...

	}
	return filepath.FromSlash(f)
}

func getSource(level int) string {
	pc, file, lineNumber, ok := runtime.Caller(level)
	if ok {
		// Clean up the common prefixes
		file = trimTrace(file)
		_, funcName := filepath.Split(runtime.FuncForPC(pc).Name())
		return fmt.Sprintf("%v:%v:%v()", file, lineNumber, funcName)
	}
	return ""
}

var prefixUsageCache = cachevalue.New[map[string]uint64]()

// loadPrefixUsageFromBackend returns prefix usages found in passed buckets
//
//	e.g.:  /testbucket/prefix => 355601334
func loadPrefixUsageFromBackend(ctx context.Context, objAPI ObjectLayer, bucket string) (map[string]uint64, error) {
	z, ok := objAPI.(*erasureServerPools)
	if !ok {
		// Prefix usage is empty
		return map[string]uint64{}, nil
	}

	cache := dataUsageCache{}

 * maven-compiler-plugin and maven-clean-plugin.
 * <p>
 * Pattern syntax supports:
 * <ul>
 *   <li>Standard glob patterns with {@code *}, {@code ?}, and {@code **} wildcards</li>
 *   <li>Explicit syntax prefixes like {@code "glob:"} or {@code "regex:"}</li>
 *   <li>Maven 3 compatible behavior for patterns without explicit syntax</li>
 *   <li>Default exclusion patterns for SCM files when requested</li>
 * </ul>
 *
 * @since 4.0.0

func isDirectiveReplace(value string) bool {
	return value == replaceDirective
}

// userMetadataKeyPrefixes contains the prefixes of used-defined metadata keys.
// All values stored with a key starting with one of the following prefixes
// must be extracted from the header.
var userMetadataKeyPrefixes = []string{
	"x-amz-meta-",
	"x-minio-meta-",
}