Exemple d'application

Cette page présente une application exemple qui montre comment provisionner un appareil COSU (détenu par l'entreprise) à usage unique et lui envoyer une commande de redémarrage. L'application utilise la bibliothèque cliente Java de l'API Android Management.

Avant de commencer

  1. Téléchargez la bibliothèque cliente Java de l'API Android Management, puis ajoutez tous les fichiers JAR au chemin de classe.
  2. Créez ou sélectionnez un projet Google Cloud Platform qui sera propriétaire de l'entreprise créée.
  3. Activez l'API Android Management dans le projet.
  4. Créez ou sélectionnez un compte de service disposant du rôle de propriétaire ou d'éditeur sur le projet.
  5. Sélectionnez un compte Google pour vous inscrire à une nouvelle entreprise. Le compte ne peut pas être l'administrateur d'une entreprise préexistante.
  6. Définissez les constantes PROJECT_ID et SERVICE_ACCOUNT_CREDENTIAL_FILE ci-dessous.
  7. Si vous le souhaitez, modifiez la constante COSU_APP_PACKAGE_NAME ci-dessous pour installer l'application de votre choix.

Code

package sample;

import com.google.api.client.googleapis.auth.oauth2.GoogleCredential;
import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport;
import com.google.api.client.json.jackson2.JacksonFactory;
import com.google.api.services.androidmanagement.v1.AndroidManagement;
import com.google.api.services.androidmanagement.v1.model.ApplicationPolicy;
import com.google.api.services.androidmanagement.v1.model.Command;
import com.google.api.services.androidmanagement.v1.model.Device;
import com.google.api.services.androidmanagement.v1.model.EnrollmentToken;
import com.google.api.services.androidmanagement.v1.model.Enterprise;
import com.google.api.services.androidmanagement.v1.model.ListDevicesResponse;
import com.google.api.services.androidmanagement.v1.model.PersistentPreferredActivity;
import com.google.api.services.androidmanagement.v1.model.Policy;
import com.google.api.services.androidmanagement.v1.model.SignupUrl;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.security.GeneralSecurityException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

public class SampleApp {
  /** The id of the Google Cloud Platform project. */
  private static final String PROJECT_ID = "YOUR_PROJECT_ID";

  /** The JSON credential file for the service account. */
  private static final String SERVICE_ACCOUNT_CREDENTIAL_FILE =
      "/PATH/TO/YOUR_FILE";

  /** The id of the policy for the COSU device. */
  private static final String POLICY_ID = "samplePolicy";

  /** The package name of the COSU app. */
  private static final String COSU_APP_PACKAGE_NAME =
      "com.google.android.apps.youtube.gaming";

  /** The OAuth scope for the Android Management API. */
  private static final String OAUTH_SCOPE =
      "https://www.googleapis.com/auth/androidmanagement";

  /** The name of this app. */
  private static final String APP_NAME = "Android Management API sample app";

  /** The Android Management API client. */
  private final AndroidManagement androidManagementClient;

  public static void main(String[] args)
      throws IOException, GeneralSecurityException {
    new SampleApp(getAndroidManagementClient()).run();
  }

  public SampleApp(AndroidManagement androidManagementClient) {
    this.androidManagementClient = androidManagementClient;
  }

  /** Runs the app. */
  public void run() throws IOException {
    // Create an enterprise. If you've already created an enterprise, the
    // createEnterprise call can be commented out and replaced with your
    // enterprise name.
    String enterpriseName = createEnterprise();
    System.out.println("Enterprise created with name: " + enterpriseName);

    // Set the policy to be used by the device.
    setPolicy(enterpriseName, POLICY_ID, getCosuPolicy());

    // Create an enrollment token to enroll the device.
    String token = createEnrollmentToken(enterpriseName, POLICY_ID);
    System.out.println("Enrollment token (to be typed on device): " + token);

    // List some of the devices for the enterprise. There will be no devices for
    // a newly created enterprise, but you can run the app again with an
    // existing enterprise after enrolling a device.
    List<Device> devices = listDevices(enterpriseName);
    for (Device device : devices) {
      System.out.println("Found device with name: " + device.getName());
    }

    // If there are any devices, reboot one.
    if (devices.isEmpty()) {
      System.out.println("No devices found.");
    } else {
      rebootDevice(devices.get(0));
    }
  }

  /** Builds an Android Management API client. */
  private static AndroidManagement getAndroidManagementClient()
      throws IOException, GeneralSecurityException {
    try (FileInputStream input =
        new FileInputStream(SERVICE_ACCOUNT_CREDENTIAL_FILE)) {
      GoogleCredential credential =
          GoogleCredential.fromStream(input)
              .createScoped(Collections.singleton(OAUTH_SCOPE));
      return new AndroidManagement.Builder(
          GoogleNetHttpTransport.newTrustedTransport(),
          JacksonFactory.getDefaultInstance(),
          credential)
              .setApplicationName(APP_NAME)
              .build();
    }
  }

  /** Creates a new enterprise. Returns the enterprise name. */
  private String createEnterprise() throws IOException {
    // Initiate signup process.
    System.out.println("Creating signup URL...");
    SignupUrl signupUrl =
        androidManagementClient
            .signupUrls()
            .create()
            .setProjectId(PROJECT_ID)
            .setCallbackUrl("https://localhost:9999")
            .execute();
    System.out.print(
        "To sign up for a new enterprise, open this URL in your browser: ");
    System.out.println(signupUrl.getUrl());
    System.out.println(
        "After signup, you will see an error page in the browser.");
    System.out.print(
        "Paste the enterpriseToken value from the error page URL here: ");
    String enterpriseToken =
        new BufferedReader(new InputStreamReader(System.in)).readLine();

    // Create the enterprise.
    System.out.println("Creating enterprise...");
    return androidManagementClient
        .enterprises()
        .create(new Enterprise())
        .setProjectId(PROJECT_ID)
        .setSignupUrlName(signupUrl.getName())
        .setEnterpriseToken(enterpriseToken)
        .execute()
        .getName();
  }

  /** Gets a Policy for a COSU device. */
  private Policy getCosuPolicy() {
    List<String> categories = new ArrayList<>();
    categories.add("android.intent.category.HOME");
    categories.add("android.intent.category.DEFAULT");

    return new Policy()
        .setApplications(
            Collections.singletonList(
                new ApplicationPolicy()
                    .setPackageName(COSU_APP_PACKAGE_NAME)
                    .setInstallType("FORCE_INSTALLED")
                    .setDefaultPermissionPolicy("GRANT")
                    .setLockTaskAllowed(true)))
        .setPersistentPreferredActivities(
            Collections.singletonList(
                new PersistentPreferredActivity()
                    .setReceiverActivity(COSU_APP_PACKAGE_NAME)
                    .setActions(
                        Collections.singletonList("android.intent.action.MAIN"))
                    .setCategories(categories)))
        .setKeyguardDisabled(true)
        .setStatusBarDisabled(true);
  }

  /** Sets the policy of the given id to the given value. */
  private void setPolicy(String enterpriseName, String policyId, Policy policy)
      throws IOException {
    System.out.println("Setting policy...");
    String name = enterpriseName + "/policies/" + policyId;
    androidManagementClient
        .enterprises()
        .policies()
        .patch(name, policy)
        .execute();
  }

  /** Creates an enrollment token. */
  private String createEnrollmentToken(String enterpriseName, String policyId)
      throws IOException {
    System.out.println("Creating enrollment token...");
    EnrollmentToken token =
        new EnrollmentToken().setPolicyName(policyId).setDuration("86400s");
    return androidManagementClient
        .enterprises()
        .enrollmentTokens()
        .create(enterpriseName, token)
        .execute()
        .getValue();
  }

  /** Lists the first page of devices for an enterprise. */
  private List<Device> listDevices(String enterpriseName) throws IOException {
    System.out.println("Listing devices...");
    ListDevicesResponse response =
        androidManagementClient
            .enterprises()
            .devices()
            .list(enterpriseName)
            .execute();
    return response.getDevices() == null
        ? new ArrayList<>() : response.getDevices();
  }

  /** Reboots a device. Note that reboot only works on Android N+. */
  private void rebootDevice(Device device) throws IOException {
    System.out.println(
        "Sending reboot command to " + device.getName() + "...");
    Command command = new Command().setType("REBOOT");
    androidManagementClient
        .enterprises()
        .devices()
        .issueCommand(device.getName(), command)
        .execute();
  }
}