Implements disableNanoApp

Bug: 67734082
Test: Run a test app to issue an disable request, verify HAL code is
executed via logs and client receives an error response.
Change-Id: I5a26c85372bd10a0224bf2a696982dccbca0c275

core/java/android/hardware/location/ContextHubManager.java

@@ -417,7 +417,17 @@ public final class ContextHubManager {
      */
     @RequiresPermission(android.Manifest.permission.LOCATION_HARDWARE)
     public ContextHubTransaction<Void> disableNanoApp(ContextHubInfo hubInfo, long nanoAppId) {
-        throw new UnsupportedOperationException("TODO: Implement this");
+        ContextHubTransaction<Void> transaction =
+                new ContextHubTransaction<>(ContextHubTransaction.TYPE_DISABLE_NANOAPP);
+        IContextHubTransactionCallback callback = createTransactionCallback(transaction);
+
+        try {
+            mService.disableNanoApp(hubInfo.getId(), callback, nanoAppId);
+        } catch (RemoteException e) {
+            throw e.rethrowFromSystemServer();
+        }
+
+        return transaction;
     }
 
     /**

core/java/android/hardware/location/IContextHubService.aidl

@@ -75,6 +75,11 @@ interface IContextHubService {
             int contextHubId, in IContextHubTransactionCallback transactionCallback,
             long nanoAppId);
 
+    // Disables a nanoapp at the specified hub
+    void disableNanoApp(
+            int contextHubId, in IContextHubTransactionCallback transactionCallback,
+            long nanoAppId);
+
     // Queries for a list of nanoapps
     void queryNanoApps(int contextHubId, in IContextHubTransactionCallback transactionCallback);
 }

services/core/java/com/android/server/location/ContextHubService.java

@@ -717,6 +717,30 @@ public class ContextHubService extends IContextHubService.Stub {
         mTransactionManager.addTransaction(transaction);
     }
 
+    /**
+     * Disables a nanoapp at the specified Context Hub.
+     *
+     * @param contextHubId        the ID of the hub to disable the nanoapp
+     * @param transactionCallback the client-facing transaction callback interface
+     * @param nanoAppId           the ID of the nanoapp to disable
+     *
+     * @throws IllegalStateException if the transaction queue is full
+     */
+    @Override
+    public void disableNanoApp(
+            int contextHubId, IContextHubTransactionCallback transactionCallback, long nanoAppId)
+            throws RemoteException {
+        checkPermissions();
+        if (!checkHalProxyAndContextHubId(
+                contextHubId, transactionCallback, ContextHubTransaction.TYPE_DISABLE_NANOAPP)) {
+            return;
+        }
+
+        ContextHubServiceTransaction transaction = mTransactionManager.createDisableTransaction(
+                contextHubId, nanoAppId, transactionCallback);
+        mTransactionManager.addTransaction(transaction);
+    }
+
     /**
      * Queries for a list of nanoapps from the specified Context hub.
      *

services/core/java/com/android/server/location/ContextHubTransactionManager.java

@@ -216,6 +216,41 @@ import java.util.concurrent.atomic.AtomicInteger;
         };
     }
 
+    /**
+     * Creates a transaction for disabling a nanoapp.
+     *
+     * @param contextHubId       the ID of the hub to disable the nanoapp on
+     * @param nanoAppId          the ID of the nanoapp to disable
+     * @param onCompleteCallback the client on complete callback
+     * @return the generated transaction
+     */
+    /* package */ ContextHubServiceTransaction createDisableTransaction(
+            int contextHubId, long nanoAppId, IContextHubTransactionCallback onCompleteCallback) {
+        return new ContextHubServiceTransaction(
+                mNextAvailableId.getAndIncrement(), ContextHubTransaction.TYPE_DISABLE_NANOAPP) {
+            @Override
+            /* package */ int onTransact() {
+                try {
+                    return mContextHubProxy.disableNanoApp(
+                            contextHubId, nanoAppId, this.getTransactionId());
+                } catch (RemoteException e) {
+                    Log.e(TAG, "RemoteException while trying to disable nanoapp with ID 0x" +
+                            Long.toHexString(nanoAppId), e);
+                    return Result.UNKNOWN_FAILURE;
+                }
+            }
+
+            @Override
+            /* package */ void onTransactionComplete(@ContextHubTransaction.Result int result) {
+                try {
+                    onCompleteCallback.onTransactionComplete(result);
+                } catch (RemoteException e) {
+                    Log.e(TAG, "RemoteException while calling client onTransactionComplete", e);
+                }
+            }
+        };
+    }
+
     /**
      * Creates a transaction for querying for a list of nanoapps.
      *