But this example is still valid and it shows how to interact with the internal components.

///

We can also use this same approach to access the request body in an exception handler.

All we need to do is handle the request inside a `try`/`except` block:

		return pilotxds.IstioControlPlaneInstance{
			Component: "MISSING",
			ID:        "MISSING",
			Info: istioversion.BuildInfo{
				Version: "MISSING CP ID",
			},
		}
	}

	cpID := pilotxds.IstioControlPlaneInstance{}
	err := json.Unmarshal([]byte(xdsResponse.ControlPlane.Identifier), &cpID)
	if err != nil {
		return pilotxds.IstioControlPlaneInstance{
			Component: "INVALID",
			ID:        "INVALID",

* Hoe stel je **validatie restricties** in zoals `maximum_length` of een `regex`.
* Een zeer krachtig en eenvoudig te gebruiken **<abbr title="ook bekend als componenten, middelen, verstrekkers, diensten, injectables">Dependency Injection</abbr>** systeem.
* Beveiliging en authenticatie, inclusief ondersteuning voor **OAuth2** met **JWT-tokens** en **HTTP Basic** auth.

				ConfigStatus: config.ecdsSyncStatus,
			},
		},
	}
}

func xdsResponseInput(istiodID string, configInputs []clientConfigInput) *discovery.DiscoveryResponse {
	icp := &xds.IstioControlPlaneInstance{
		Component: "istiod",
		ID:        istiodID,
		Info: istioversion.BuildInfo{
			Version: "1.1",
		},
	}
	identifier, _ := json.Marshal(icp)

	resources := make([]*anypb.Any, 0)

## Pre-pre requisite

- A working knowledge of MinIO codebase and its various components.
- A working knowledge of AWS S3 API behaviors and corner cases.

## Pre-requisite for backporting any fixes

Fixes that are allowed a backport must satisfy any of the following criteria's:

  optional ContainerResourceMetricSource containerResource = 7;

  // external refers to a global metric that is not associated
  // with any Kubernetes object. It allows autoscaling based on information
  // coming from components running outside of cluster
  // (for example length of queue in cloud messaging service, or
  // QPS from loadbalancer running outside of cluster).
  // +optional
  optional ExternalMetricSource external = 5;
}

Dieses Beispiel ist jedoch immer noch gültig und zeigt, wie mit den internen Komponenten interagiert wird.

///

Wir können denselben Ansatz auch verwenden, um in einem Exceptionhandler auf den Requestbody zuzugreifen.

import org.codehaus.plexus.classworlds.realm.ClassRealm;
import org.codehaus.plexus.classworlds.realm.NoSuchRealmException;
import org.codehaus.plexus.component.repository.exception.ComponentLookupException;
import org.codehaus.plexus.components.secdispatcher.SecDispatcher;
import org.codehaus.plexus.logging.LoggerManager;
import org.eclipse.aether.DefaultRepositoryCache;
import org.eclipse.aether.transfer.TransferListener;

     */
    public NtlmPasswordAuthentication ( CIFSContext tc ) {
        this(tc, "", "", "");
    }


    /**
     * Create an <tt>NtlmPasswordAuthentication</tt> object from the userinfo
     * component of an SMB URL like "<tt>domain;user:pass</tt>". This constructor
     * is used internally be jCIFS when parsing SMB URLs.
     * 
     * @param tc
     * @param userInfo
     */

        DefaultRepositorySystemSession session = super.initRepoSession();
        session.setWorkspaceReader(new TestMavenWorkspaceReader());
        return session;
    }

    @Override
    protected String component() {
        return "resolver";
    }

    @Test
    void testResolutionOfASingleArtifactWhereTheArtifactIsPresentInTheLocalRepository() throws Exception {
        Artifact a = createLocalArtifact("a", "1.0");