Activation activation = profile.getActivation();

        if (activation == null) {
            return false;
        }

        String jdk = activation.getJdk();

        if (jdk == null) {
            return false;
        }

        String version = context.getSystemProperties().get("java.version");

Voyons maintenant comment vous pourriez utiliser cela pour renvoyer une réponse personnalisée.

Disons que vous voulez renvoyer une [réponse XML](https://en.wikipedia.org/wiki/XML).

Vous pouvez placer votre contenu XML dans une chaîne de caractères, le mettre dans une `Response` et le renvoyer :

// be reached, as we cannot reliably determine if the precondition is met.
func TestPutObjectConditionalWithReadQuorumFailure(t *testing.T) {
	ctx := context.Background()

	obj, fsDirs, err := prepareErasure16(ctx)
	if err != nil {
		t.Fatal(err)
	}
	defer obj.Shutdown(context.Background())
	defer removeRoots(fsDirs)

	z := obj.(*erasureServerPools)
	xl := z.serverPools[0].sets[0]

	bucket := "test-bucket"

import org.apache.maven.cling.invoker.BaseParser;

public class UpgradeParser extends BaseParser {
    @Override
    protected Options parseCliOptions(LocalContext context) {
        try {
            return CommonsCliUpgradeOptions.parse(context.parserRequest.args().toArray(new String[0]));
        } catch (ParseException e) {
            throw new IllegalArgumentException("Failed to parse command line options: " + e.getMessage(), e);

函式在 `yield` 之前的部分，會在應用啟動前先執行。

`yield` 之後的部分，會在應用結束後再執行。

### 非同步內容管理器（Async Context Manager） { #async-context-manager }

你會看到這個函式被 `@asynccontextmanager` 裝飾。

它會把函式轉換成所謂的「**非同步內容管理器（async context manager）**」。

{* ../../docs_src/events/tutorial003_py310.py hl[1,13] *}

Python 中的**內容管理器（context manager）**可以用在 `with` 陳述式中，例如 `open()` 可以作為內容管理器使用：

```Python
with open("file.txt") as file:

        DefaultProfileActivationContext context = new DefaultProfileActivationContext();

        context.setActiveProfileIds(request.getActiveProfileIds());
        context.setInactiveProfileIds(request.getInactiveProfileIds());
        context.setSystemProperties(request.getSystemProperties());
        // enrich user properties with project packaging

	// OsOpen allows overriding default function.
	OsOpen = os.Open
	// OsOpenFile allows overriding default function.
	OsOpenFile = os.OpenFile
)

// ReadFileWithFileInfo reads the named file and returns the contents.
// A successful call returns err == nil, not err == EOF.
// Because ReadFile reads the whole file, it does not treat an EOF from Read
// as an error to be reported.

)

// loadClusterReplicationMetrics - `MetricsLoaderFn` for cluster replication metrics
// such as transfer rate and objects queued.
func loadClusterReplicationMetrics(ctx context.Context, m MetricValues, c *metricsCache) error {
	st := globalReplicationStats.Load()
	if st == nil {
		return nil
	}

	qs := st.getNodeQueueStatsSummary()

	qt := qs.QStats

    @Mock
    private Configuration config;

    @Mock
    private CIFSContext context;

    @Mock
    private SmbTransportImpl transport;

    @BeforeEach
    void setUp() throws Exception {
        MockitoAnnotations.openMocks(this);
        when(session.getConfig()).thenReturn(config);
        when(session.getContext()).thenReturn(context);
        when(session.getTransport()).thenReturn(transport);

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package grid

import (
	"context"
	"fmt"
	"net/http"
	"strings"
	"time"

	"github.com/minio/madmin-go/v3"
	"github.com/minio/minio/internal/pubsub"
)

// TraceParamsKey allows to pass trace parameters to the request via context.
// This is only needed when un-typed requests are used.