| /* |
| * Copyright 2020 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.app.appsearch; |
| |
| import android.annotation.CallbackExecutor; |
| import android.annotation.NonNull; |
| import android.app.appsearch.aidl.AppSearchBatchResultParcel; |
| import android.app.appsearch.aidl.AppSearchResultParcel; |
| import android.app.appsearch.aidl.IAppSearchBatchResultCallback; |
| import android.app.appsearch.aidl.IAppSearchManager; |
| import android.app.appsearch.aidl.IAppSearchResultCallback; |
| import android.app.appsearch.exceptions.AppSearchException; |
| import android.app.appsearch.util.SchemaMigrationUtil; |
| import android.os.Bundle; |
| import android.os.RemoteException; |
| import android.os.SystemClock; |
| import android.os.UserHandle; |
| import android.util.ArrayMap; |
| import android.util.ArraySet; |
| import android.util.Log; |
| |
| import com.android.internal.util.Preconditions; |
| |
| import java.io.Closeable; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Objects; |
| import java.util.Set; |
| import java.util.concurrent.CompletableFuture; |
| import java.util.concurrent.Executor; |
| import java.util.function.Consumer; |
| |
| /** |
| * Provides a connection to a single AppSearch database. |
| * |
| * <p>An {@link AppSearchSession} instance provides access to database operations such as |
| * setting a schema, adding documents, and searching. |
| * |
| * <p>This class is thread safe. |
| * |
| * @see GlobalSearchSession |
| */ |
| public final class AppSearchSession implements Closeable { |
| private static final String TAG = "AppSearchSession"; |
| |
| private final String mPackageName; |
| private final String mDatabaseName; |
| private final UserHandle mUserHandle; |
| private final IAppSearchManager mService; |
| |
| private boolean mIsMutated = false; |
| private boolean mIsClosed = false; |
| |
| /** |
| * Creates a search session for the client, defined by the {@code userHandle} and |
| * {@code packageName}. |
| */ |
| static void createSearchSession( |
| @NonNull AppSearchManager.SearchContext searchContext, |
| @NonNull IAppSearchManager service, |
| @NonNull UserHandle userHandle, |
| @NonNull String packageName, |
| @NonNull @CallbackExecutor Executor executor, |
| @NonNull Consumer<AppSearchResult<AppSearchSession>> callback) { |
| AppSearchSession searchSession = |
| new AppSearchSession(service, userHandle, packageName, searchContext.mDatabaseName); |
| searchSession.initialize(executor, callback); |
| } |
| |
| // NOTE: No instance of this class should be created or returned except via initialize(). |
| // Once the callback.accept has been called here, the class is ready to use. |
| private void initialize( |
| @NonNull @CallbackExecutor Executor executor, |
| @NonNull Consumer<AppSearchResult<AppSearchSession>> callback) { |
| try { |
| mService.initialize( |
| mPackageName, |
| mUserHandle, |
| /*binderCallStartTimeMillis=*/ SystemClock.elapsedRealtime(), |
| new IAppSearchResultCallback.Stub() { |
| @Override |
| public void onResult(AppSearchResultParcel resultParcel) { |
| executor.execute(() -> { |
| AppSearchResult<Void> result = resultParcel.getResult(); |
| if (result.isSuccess()) { |
| callback.accept( |
| AppSearchResult.newSuccessfulResult( |
| AppSearchSession.this)); |
| } else { |
| callback.accept(AppSearchResult.newFailedResult(result)); |
| } |
| }); |
| } |
| }); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| |
| private AppSearchSession(@NonNull IAppSearchManager service, @NonNull UserHandle userHandle, |
| @NonNull String packageName, @NonNull String databaseName) { |
| mService = service; |
| mUserHandle = userHandle; |
| mPackageName = packageName; |
| mDatabaseName = databaseName; |
| } |
| |
| /** |
| * Sets the schema that represents the organizational structure of data within the AppSearch |
| * database. |
| * |
| * <p>Upon creating an {@link AppSearchSession}, {@link #setSchema} should be called. If the |
| * schema needs to be updated, or it has not been previously set, then the provided schema will |
| * be saved and persisted to disk. Otherwise, {@link #setSchema} is handled efficiently as a |
| * no-op call. |
| * |
| * @param request the schema to set or update the AppSearch database to. |
| * @param workExecutor Executor on which to schedule heavy client-side background work such as |
| * transforming documents. |
| * @param callbackExecutor Executor on which to invoke the callback. |
| * @param callback Callback to receive errors resulting from setting the schema. If the |
| * operation succeeds, the callback will be invoked with {@code null}. |
| */ |
| public void setSchema( |
| @NonNull SetSchemaRequest request, |
| @NonNull Executor workExecutor, |
| @NonNull @CallbackExecutor Executor callbackExecutor, |
| @NonNull Consumer<AppSearchResult<SetSchemaResponse>> callback) { |
| Objects.requireNonNull(request); |
| Objects.requireNonNull(workExecutor); |
| Objects.requireNonNull(callbackExecutor); |
| Objects.requireNonNull(callback); |
| Preconditions.checkState(!mIsClosed, "AppSearchSession has already been closed"); |
| List<Bundle> schemaBundles = new ArrayList<>(request.getSchemas().size()); |
| for (AppSearchSchema schema : request.getSchemas()) { |
| schemaBundles.add(schema.getBundle()); |
| } |
| Map<String, List<Bundle>> schemasVisibleToPackagesBundles = |
| new ArrayMap<>(request.getSchemasVisibleToPackagesInternal().size()); |
| for (Map.Entry<String, Set<PackageIdentifier>> entry : |
| request.getSchemasVisibleToPackagesInternal().entrySet()) { |
| List<Bundle> packageIdentifierBundles = new ArrayList<>(entry.getValue().size()); |
| for (PackageIdentifier packageIdentifier : entry.getValue()) { |
| packageIdentifierBundles.add(packageIdentifier.getBundle()); |
| } |
| schemasVisibleToPackagesBundles.put(entry.getKey(), packageIdentifierBundles); |
| } |
| |
| // No need to trigger migration if user never set migrator |
| if (request.getMigrators().isEmpty()) { |
| setSchemaNoMigrations( |
| request, |
| schemaBundles, |
| schemasVisibleToPackagesBundles, |
| callbackExecutor, |
| callback); |
| } else { |
| setSchemaWithMigrations( |
| request, |
| schemaBundles, |
| schemasVisibleToPackagesBundles, |
| workExecutor, |
| callbackExecutor, |
| callback); |
| } |
| mIsMutated = true; |
| } |
| |
| /** |
| * Retrieves the schema most recently successfully provided to {@link #setSchema}. |
| * |
| * @param executor Executor on which to invoke the callback. |
| * @param callback Callback to receive the pending results of schema. |
| */ |
| public void getSchema( |
| @NonNull @CallbackExecutor Executor executor, |
| @NonNull Consumer<AppSearchResult<GetSchemaResponse>> callback) { |
| Objects.requireNonNull(executor); |
| Objects.requireNonNull(callback); |
| Preconditions.checkState(!mIsClosed, "AppSearchSession has already been closed"); |
| try { |
| mService.getSchema( |
| mPackageName, |
| mDatabaseName, |
| mUserHandle, |
| new IAppSearchResultCallback.Stub() { |
| @Override |
| public void onResult(AppSearchResultParcel resultParcel) { |
| executor.execute(() -> { |
| AppSearchResult<Bundle> result = resultParcel.getResult(); |
| if (result.isSuccess()) { |
| GetSchemaResponse response = |
| new GetSchemaResponse(result.getResultValue()); |
| callback.accept(AppSearchResult.newSuccessfulResult(response)); |
| } else { |
| callback.accept(AppSearchResult.newFailedResult(result)); |
| } |
| }); |
| } |
| }); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| |
| /** |
| * Retrieves the set of all namespaces in the current database with at least one document. |
| * |
| * @param executor Executor on which to invoke the callback. |
| * @param callback Callback to receive the namespaces. |
| */ |
| public void getNamespaces( |
| @NonNull @CallbackExecutor Executor executor, |
| @NonNull Consumer<AppSearchResult<Set<String>>> callback) { |
| Objects.requireNonNull(executor); |
| Objects.requireNonNull(callback); |
| Preconditions.checkState(!mIsClosed, "AppSearchSession has already been closed"); |
| try { |
| mService.getNamespaces( |
| mPackageName, |
| mDatabaseName, |
| mUserHandle, |
| new IAppSearchResultCallback.Stub() { |
| @Override |
| public void onResult(AppSearchResultParcel resultParcel) { |
| executor.execute(() -> { |
| AppSearchResult<List<String>> result = resultParcel.getResult(); |
| if (result.isSuccess()) { |
| Set<String> namespaces = |
| new ArraySet<>(result.getResultValue()); |
| callback.accept( |
| AppSearchResult.newSuccessfulResult(namespaces)); |
| } else { |
| callback.accept(AppSearchResult.newFailedResult(result)); |
| } |
| }); |
| } |
| }); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| |
| /** |
| * Indexes documents into the {@link AppSearchSession} database. |
| * |
| * <p>Each {@link GenericDocument} object must have a {@code schemaType} field set to an {@link |
| * AppSearchSchema} type that has been previously registered by calling the {@link #setSchema} |
| * method. |
| * |
| * @param request containing documents to be indexed. |
| * @param executor Executor on which to invoke the callback. |
| * @param callback Callback to receive pending result of performing this operation. The keys |
| * of the returned {@link AppSearchBatchResult} are the IDs of the input |
| * documents. The values are {@code null} if they were successfully indexed, |
| * or a failed {@link AppSearchResult} otherwise. If an unexpected internal |
| * error occurs in the AppSearch service, |
| * {@link BatchResultCallback#onSystemError} will be invoked with a |
| * {@link Throwable}. |
| */ |
| public void put( |
| @NonNull PutDocumentsRequest request, |
| @NonNull @CallbackExecutor Executor executor, |
| @NonNull BatchResultCallback<String, Void> callback) { |
| Objects.requireNonNull(request); |
| Objects.requireNonNull(executor); |
| Objects.requireNonNull(callback); |
| Preconditions.checkState(!mIsClosed, "AppSearchSession has already been closed"); |
| List<GenericDocument> documents = request.getGenericDocuments(); |
| List<Bundle> documentBundles = new ArrayList<>(documents.size()); |
| for (int i = 0; i < documents.size(); i++) { |
| documentBundles.add(documents.get(i).getBundle()); |
| } |
| try { |
| mService.putDocuments(mPackageName, mDatabaseName, documentBundles, mUserHandle, |
| /*binderCallStartTimeMillis=*/ SystemClock.elapsedRealtime(), |
| new IAppSearchBatchResultCallback.Stub() { |
| @Override |
| public void onResult(AppSearchBatchResultParcel resultParcel) { |
| executor.execute(() -> callback.onResult(resultParcel.getResult())); |
| } |
| |
| @Override |
| public void onSystemError(AppSearchResultParcel resultParcel) { |
| executor.execute(() -> sendSystemErrorToCallback( |
| resultParcel.getResult(), callback)); |
| } |
| }); |
| mIsMutated = true; |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| |
| /** |
| * Gets {@link GenericDocument} objects by document IDs in a namespace from the {@link |
| * AppSearchSession} database. |
| * |
| * @param request a request containing a namespace and IDs to get documents for. |
| * @param executor Executor on which to invoke the callback. |
| * @param callback Callback to receive the pending result of performing this operation. The keys |
| * of the returned {@link AppSearchBatchResult} are the input IDs. The values |
| * are the returned {@link GenericDocument}s on success, or a failed |
| * {@link AppSearchResult} otherwise. IDs that are not found will return a |
| * failed {@link AppSearchResult} with a result code of |
| * {@link AppSearchResult#RESULT_NOT_FOUND}. If an unexpected internal error |
| * occurs in the AppSearch service, {@link BatchResultCallback#onSystemError} |
| * will be invoked with a {@link Throwable}. |
| */ |
| public void getByDocumentId( |
| @NonNull GetByDocumentIdRequest request, |
| @NonNull @CallbackExecutor Executor executor, |
| @NonNull BatchResultCallback<String, GenericDocument> callback) { |
| Objects.requireNonNull(request); |
| Objects.requireNonNull(executor); |
| Objects.requireNonNull(callback); |
| Preconditions.checkState(!mIsClosed, "AppSearchSession has already been closed"); |
| try { |
| mService.getDocuments( |
| mPackageName, |
| mDatabaseName, |
| request.getNamespace(), |
| new ArrayList<>(request.getIds()), |
| request.getProjectionsInternal(), |
| mUserHandle, |
| /*binderCallStartTimeMillis=*/ SystemClock.elapsedRealtime(), |
| new IAppSearchBatchResultCallback.Stub() { |
| @Override |
| public void onResult(AppSearchBatchResultParcel resultParcel) { |
| executor.execute(() -> { |
| AppSearchBatchResult<String, Bundle> result = |
| resultParcel.getResult(); |
| AppSearchBatchResult.Builder<String, GenericDocument> |
| documentResultBuilder = |
| new AppSearchBatchResult.Builder<>(); |
| |
| // Translate successful results |
| for (Map.Entry<String, Bundle> bundleEntry : |
| result.getSuccesses().entrySet()) { |
| GenericDocument document; |
| try { |
| document = new GenericDocument(bundleEntry.getValue()); |
| } catch (Throwable t) { |
| // These documents went through validation, so how could |
| // this fail? We must have done something wrong. |
| documentResultBuilder.setFailure( |
| bundleEntry.getKey(), |
| AppSearchResult.RESULT_INTERNAL_ERROR, |
| t.getMessage()); |
| continue; |
| } |
| documentResultBuilder.setSuccess( |
| bundleEntry.getKey(), document); |
| } |
| |
| // Translate failed results |
| for (Map.Entry<String, AppSearchResult<Bundle>> bundleEntry : |
| ((Map<String, AppSearchResult<Bundle>>) |
| result.getFailures()).entrySet()) { |
| documentResultBuilder.setFailure( |
| bundleEntry.getKey(), |
| bundleEntry.getValue().getResultCode(), |
| bundleEntry.getValue().getErrorMessage()); |
| } |
| callback.onResult(documentResultBuilder.build()); |
| }); |
| } |
| |
| @Override |
| public void onSystemError(AppSearchResultParcel result) { |
| executor.execute( |
| () -> sendSystemErrorToCallback(result.getResult(), callback)); |
| } |
| }); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| |
| /** |
| * Retrieves documents from the open {@link AppSearchSession} that match a given query |
| * string and type of search provided. |
| * |
| * <p>Query strings can be empty, contain one term with no operators, or contain multiple terms |
| * and operators. |
| * |
| * <p>For query strings that are empty, all documents that match the {@link SearchSpec} will be |
| * returned. |
| * |
| * <p>For query strings with a single term and no operators, documents that match the provided |
| * query string and {@link SearchSpec} will be returned. |
| * |
| * <p>The following operators are supported: |
| * |
| * <ul> |
| * <li>AND (implicit) |
| * <p>AND is an operator that matches documents that contain <i>all</i> provided terms. |
| * <p><b>NOTE:</b> A space between terms is treated as an "AND" operator. Explicitly |
| * including "AND" in a query string will treat "AND" as a term, returning documents that |
| * also contain "AND". |
| * <p>Example: "apple AND banana" matches documents that contain the terms "apple", "and", |
| * "banana". |
| * <p>Example: "apple banana" matches documents that contain both "apple" and "banana". |
| * <p>Example: "apple banana cherry" matches documents that contain "apple", "banana", and |
| * "cherry". |
| * <li>OR |
| * <p>OR is an operator that matches documents that contain <i>any</i> provided term. |
| * <p>Example: "apple OR banana" matches documents that contain either "apple" or |
| * "banana". |
| * <p>Example: "apple OR banana OR cherry" matches documents that contain any of "apple", |
| * "banana", or "cherry". |
| * <li>Exclusion (-) |
| * <p>Exclusion (-) is an operator that matches documents that <i>do not</i> contain the |
| * provided term. |
| * <p>Example: "-apple" matches documents that do not contain "apple". |
| * <li>Grouped Terms |
| * <p>For queries that require multiple operators and terms, terms can be grouped into |
| * subqueries. Subqueries are contained within an open "(" and close ")" parenthesis. |
| * <p>Example: "(donut OR bagel) (coffee OR tea)" matches documents that contain either |
| * "donut" or "bagel" and either "coffee" or "tea". |
| * <li>Property Restricts |
| * <p>For queries that require a term to match a specific {@link AppSearchSchema} property |
| * of a document, a ":" must be included between the property name and the term. |
| * <p>Example: "subject:important" matches documents that contain the term "important" in |
| * the "subject" property. |
| * </ul> |
| * |
| * <p>Additional search specifications, such as filtering by {@link AppSearchSchema} type or |
| * adding projection, can be set by calling the corresponding {@link SearchSpec.Builder} setter. |
| * |
| * <p>This method is lightweight. The heavy work will be done in {@link |
| * SearchResults#getNextPage}. |
| * |
| * @param queryExpression query string to search. |
| * @param searchSpec spec for setting document filters, adding projection, setting term match |
| * type, etc. |
| * @return a {@link SearchResults} object for retrieved matched documents. |
| */ |
| @NonNull |
| public SearchResults search(@NonNull String queryExpression, @NonNull SearchSpec searchSpec) { |
| Objects.requireNonNull(queryExpression); |
| Objects.requireNonNull(searchSpec); |
| Preconditions.checkState(!mIsClosed, "AppSearchSession has already been closed"); |
| return new SearchResults(mService, mPackageName, mDatabaseName, queryExpression, |
| searchSpec, mUserHandle); |
| } |
| |
| /** |
| * Reports usage of a particular document by namespace and ID. |
| * |
| * <p>A usage report represents an event in which a user interacted with or viewed a document. |
| * |
| * <p>For each call to {@link #reportUsage}, AppSearch updates usage count and usage recency |
| * metrics for that particular document. These metrics are used for ordering {@link #search} |
| * results by the {@link SearchSpec#RANKING_STRATEGY_USAGE_COUNT} and {@link |
| * SearchSpec#RANKING_STRATEGY_USAGE_LAST_USED_TIMESTAMP} ranking strategies. |
| * |
| * <p>Reporting usage of a document is optional. |
| * |
| * @param request The usage reporting request. |
| * @param executor Executor on which to invoke the callback. |
| * @param callback Callback to receive errors. If the operation succeeds, the callback will be |
| * invoked with {@code null}. |
| */ |
| public void reportUsage( |
| @NonNull ReportUsageRequest request, |
| @NonNull @CallbackExecutor Executor executor, |
| @NonNull Consumer<AppSearchResult<Void>> callback) { |
| Objects.requireNonNull(request); |
| Objects.requireNonNull(executor); |
| Objects.requireNonNull(callback); |
| Preconditions.checkState(!mIsClosed, "AppSearchSession has already been closed"); |
| try { |
| mService.reportUsage( |
| mPackageName, |
| mDatabaseName, |
| request.getNamespace(), |
| request.getDocumentId(), |
| request.getUsageTimestampMillis(), |
| /*systemUsage=*/ false, |
| mUserHandle, |
| new IAppSearchResultCallback.Stub() { |
| @Override |
| public void onResult(AppSearchResultParcel resultParcel) { |
| executor.execute(() -> callback.accept(resultParcel.getResult())); |
| } |
| }); |
| mIsMutated = true; |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| |
| /** |
| * Removes {@link GenericDocument} objects by document IDs in a namespace from the {@link |
| * AppSearchSession} database. |
| * |
| * <p>Removed documents will no longer be surfaced by {@link #search} or {@link |
| * #getByDocumentId} calls. |
| * |
| * <p>Once the database crosses the document count or byte usage threshold, removed documents |
| * will be deleted from disk. |
| * |
| * @param request {@link RemoveByDocumentIdRequest} with IDs in a namespace to remove from the |
| * index. |
| * @param executor Executor on which to invoke the callback. |
| * @param callback Callback to receive the pending result of performing this operation. The keys |
| * of the returned {@link AppSearchBatchResult} are the input document IDs. The |
| * values are {@code null} on success, or a failed {@link AppSearchResult} |
| * otherwise. IDs that are not found will return a failed |
| * {@link AppSearchResult} with a result code of |
| * {@link AppSearchResult#RESULT_NOT_FOUND}. If an unexpected internal error |
| * occurs in the AppSearch service, {@link BatchResultCallback#onSystemError} |
| * will be invoked with a {@link Throwable}. |
| */ |
| public void remove( |
| @NonNull RemoveByDocumentIdRequest request, |
| @NonNull @CallbackExecutor Executor executor, |
| @NonNull BatchResultCallback<String, Void> callback) { |
| Objects.requireNonNull(request); |
| Objects.requireNonNull(executor); |
| Objects.requireNonNull(callback); |
| Preconditions.checkState(!mIsClosed, "AppSearchSession has already been closed"); |
| try { |
| mService.removeByDocumentId( |
| mPackageName, |
| mDatabaseName, |
| request.getNamespace(), |
| new ArrayList<>(request.getIds()), |
| mUserHandle, |
| /*binderCallStartTimeMillis=*/ SystemClock.elapsedRealtime(), |
| new IAppSearchBatchResultCallback.Stub() { |
| @Override |
| public void onResult(AppSearchBatchResultParcel resultParcel) { |
| executor.execute(() -> callback.onResult(resultParcel.getResult())); |
| } |
| |
| @Override |
| public void onSystemError(AppSearchResultParcel resultParcel) { |
| executor.execute(() -> sendSystemErrorToCallback( |
| resultParcel.getResult(), callback)); |
| } |
| }); |
| mIsMutated = true; |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| |
| /** |
| * Removes {@link GenericDocument}s from the index by Query. Documents will be removed if they |
| * match the {@code queryExpression} in given namespaces and schemaTypes which is set via {@link |
| * SearchSpec.Builder#addFilterNamespaces} and {@link SearchSpec.Builder#addFilterSchemas}. |
| * |
| * <p>An empty {@code queryExpression} matches all documents. |
| * |
| * <p>An empty set of namespaces or schemaTypes matches all namespaces or schemaTypes in the |
| * current database. |
| * |
| * @param queryExpression Query String to search. |
| * @param searchSpec Spec containing schemaTypes, namespaces and query expression indicates how |
| * document will be removed. All specific about how to scoring, ordering, snippeting and |
| * resulting will be ignored. |
| * @param executor Executor on which to invoke the callback. |
| * @param callback Callback to receive errors resulting from removing the documents. If |
| * the operation succeeds, the callback will be invoked with |
| * {@code null}. |
| */ |
| public void remove( |
| @NonNull String queryExpression, |
| @NonNull SearchSpec searchSpec, |
| @NonNull @CallbackExecutor Executor executor, |
| @NonNull Consumer<AppSearchResult<Void>> callback) { |
| Objects.requireNonNull(queryExpression); |
| Objects.requireNonNull(searchSpec); |
| Objects.requireNonNull(executor); |
| Objects.requireNonNull(callback); |
| Preconditions.checkState(!mIsClosed, "AppSearchSession has already been closed"); |
| try { |
| mService.removeByQuery( |
| mPackageName, |
| mDatabaseName, |
| queryExpression, |
| searchSpec.getBundle(), |
| mUserHandle, |
| /*binderCallStartTimeMillis=*/ SystemClock.elapsedRealtime(), |
| new IAppSearchResultCallback.Stub() { |
| @Override |
| public void onResult(AppSearchResultParcel resultParcel) { |
| executor.execute(() -> callback.accept(resultParcel.getResult())); |
| } |
| }); |
| mIsMutated = true; |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| |
| /** |
| * Gets the storage info for this {@link AppSearchSession} database. |
| * |
| * <p>This may take time proportional to the number of documents and may be inefficient to call |
| * repeatedly. |
| * |
| * @param executor Executor on which to invoke the callback. |
| * @param callback Callback to receive the storage info. |
| */ |
| public void getStorageInfo( |
| @NonNull @CallbackExecutor Executor executor, |
| @NonNull Consumer<AppSearchResult<StorageInfo>> callback) { |
| Objects.requireNonNull(executor); |
| Objects.requireNonNull(callback); |
| Preconditions.checkState(!mIsClosed, "AppSearchSession has already been closed"); |
| try { |
| mService.getStorageInfo( |
| mPackageName, |
| mDatabaseName, |
| mUserHandle, |
| new IAppSearchResultCallback.Stub() { |
| @Override |
| public void onResult(AppSearchResultParcel resultParcel) { |
| executor.execute(() -> { |
| AppSearchResult<Bundle> result = resultParcel.getResult(); |
| if (result.isSuccess()) { |
| StorageInfo response = new StorageInfo(result.getResultValue()); |
| callback.accept(AppSearchResult.newSuccessfulResult(response)); |
| } else { |
| callback.accept(AppSearchResult.newFailedResult(result)); |
| } |
| }); |
| } |
| }); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| |
| /** |
| * Closes the {@link AppSearchSession} to persist all schema and document updates, |
| * additions, and deletes to disk. |
| */ |
| @Override |
| public void close() { |
| if (mIsMutated && !mIsClosed) { |
| try { |
| mService.persistToDisk( |
| mPackageName, |
| mUserHandle, |
| /*binderCallStartTimeMillis=*/ SystemClock.elapsedRealtime()); |
| mIsClosed = true; |
| } catch (RemoteException e) { |
| Log.e(TAG, "Unable to close the AppSearchSession", e); |
| } |
| } |
| } |
| |
| /** |
| * Set schema to Icing for no-migration scenario. |
| * |
| * <p>We only need one time {@link #setSchema} call for no-migration scenario by using the |
| * forceoverride in the request. |
| */ |
| private void setSchemaNoMigrations( |
| @NonNull SetSchemaRequest request, |
| @NonNull List<Bundle> schemaBundles, |
| @NonNull Map<String, List<Bundle>> schemasVisibleToPackagesBundles, |
| @NonNull @CallbackExecutor Executor executor, |
| @NonNull Consumer<AppSearchResult<SetSchemaResponse>> callback) { |
| try { |
| mService.setSchema( |
| mPackageName, |
| mDatabaseName, |
| schemaBundles, |
| new ArrayList<>(request.getSchemasNotDisplayedBySystem()), |
| schemasVisibleToPackagesBundles, |
| request.isForceOverride(), |
| request.getVersion(), |
| mUserHandle, |
| /*binderCallStartTimeMillis=*/ SystemClock.elapsedRealtime(), |
| new IAppSearchResultCallback.Stub() { |
| @Override |
| public void onResult(AppSearchResultParcel resultParcel) { |
| executor.execute(() -> { |
| AppSearchResult<Bundle> result = resultParcel.getResult(); |
| if (result.isSuccess()) { |
| try { |
| SetSchemaResponse setSchemaResponse = |
| new SetSchemaResponse(result.getResultValue()); |
| if (!request.isForceOverride()) { |
| // Throw exception if there is any deleted types or |
| // incompatible types. That's the only case we swallowed |
| // in the AppSearchImpl#setSchema(). |
| SchemaMigrationUtil.checkDeletedAndIncompatible( |
| setSchemaResponse.getDeletedTypes(), |
| setSchemaResponse.getIncompatibleTypes()); |
| } |
| callback.accept(AppSearchResult |
| .newSuccessfulResult(setSchemaResponse)); |
| } catch (Throwable t) { |
| callback.accept(AppSearchResult.throwableToFailedResult(t)); |
| } |
| } else { |
| callback.accept(AppSearchResult.newFailedResult(result)); |
| } |
| }); |
| } |
| }); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| |
| /** |
| * Set schema to Icing for migration scenario. |
| * |
| * <p>First time {@link #setSchema} call with forceOverride is false gives us all incompatible |
| * changes. After trigger migrations, the second time call {@link #setSchema} will actually |
| * apply the changes. |
| */ |
| private void setSchemaWithMigrations( |
| @NonNull SetSchemaRequest request, |
| @NonNull List<Bundle> schemaBundles, |
| @NonNull Map<String, List<Bundle>> schemasVisibleToPackagesBundles, |
| @NonNull Executor workExecutor, |
| @NonNull @CallbackExecutor Executor callbackExecutor, |
| @NonNull Consumer<AppSearchResult<SetSchemaResponse>> callback) { |
| workExecutor.execute(() -> { |
| try { |
| // Migration process |
| // 1. Validate and retrieve all active migrators. |
| CompletableFuture<AppSearchResult<GetSchemaResponse>> getSchemaFuture = |
| new CompletableFuture<>(); |
| getSchema(callbackExecutor, getSchemaFuture::complete); |
| AppSearchResult<GetSchemaResponse> getSchemaResult = getSchemaFuture.get(); |
| if (!getSchemaResult.isSuccess()) { |
| callbackExecutor.execute(() -> |
| callback.accept(AppSearchResult.newFailedResult(getSchemaResult))); |
| return; |
| } |
| GetSchemaResponse getSchemaResponse = getSchemaResult.getResultValue(); |
| int currentVersion = getSchemaResponse.getVersion(); |
| int finalVersion = request.getVersion(); |
| Map<String, Migrator> activeMigrators = SchemaMigrationUtil.getActiveMigrators( |
| getSchemaResponse.getSchemas(), request.getMigrators(), currentVersion, |
| finalVersion); |
| |
| // No need to trigger migration if no migrator is active. |
| if (activeMigrators.isEmpty()) { |
| setSchemaNoMigrations(request, schemaBundles, schemasVisibleToPackagesBundles, |
| callbackExecutor, callback); |
| return; |
| } |
| |
| // 2. SetSchema with forceOverride=false, to retrieve the list of |
| // incompatible/deleted types. |
| CompletableFuture<AppSearchResult<Bundle>> setSchemaFuture = |
| new CompletableFuture<>(); |
| mService.setSchema( |
| mPackageName, |
| mDatabaseName, |
| schemaBundles, |
| new ArrayList<>(request.getSchemasNotDisplayedBySystem()), |
| schemasVisibleToPackagesBundles, |
| /*forceOverride=*/ false, |
| request.getVersion(), |
| mUserHandle, |
| /*binderCallStartTimeMillis=*/ SystemClock.elapsedRealtime(), |
| new IAppSearchResultCallback.Stub() { |
| @Override |
| public void onResult(AppSearchResultParcel resultParcel) { |
| setSchemaFuture.complete(resultParcel.getResult()); |
| } |
| }); |
| AppSearchResult<Bundle> setSchemaResult = setSchemaFuture.get(); |
| if (!setSchemaResult.isSuccess()) { |
| callbackExecutor.execute(() -> |
| callback.accept(AppSearchResult.newFailedResult(setSchemaResult))); |
| return; |
| } |
| SetSchemaResponse setSchemaResponse = |
| new SetSchemaResponse(setSchemaResult.getResultValue()); |
| |
| // 3. If forceOverride is false, check that all incompatible types will be migrated. |
| // If some aren't we must throw an error, rather than proceeding and deleting those |
| // types. |
| if (!request.isForceOverride()) { |
| SchemaMigrationUtil.checkDeletedAndIncompatibleAfterMigration(setSchemaResponse, |
| activeMigrators.keySet()); |
| } |
| |
| try (AppSearchMigrationHelper migrationHelper = new AppSearchMigrationHelper( |
| mService, mUserHandle, mPackageName, mDatabaseName, request.getSchemas())) { |
| |
| // 4. Trigger migration for all migrators. |
| // TODO(b/177266929) trigger migration for all types together rather than |
| // separately. |
| for (Map.Entry<String, Migrator> entry : activeMigrators.entrySet()) { |
| migrationHelper.queryAndTransform(/*schemaType=*/ entry.getKey(), |
| /*migrator=*/ entry.getValue(), currentVersion, |
| finalVersion); |
| } |
| |
| // 5. SetSchema a second time with forceOverride=true if the first attempted |
| // failed. |
| if (!setSchemaResponse.getIncompatibleTypes().isEmpty() |
| || !setSchemaResponse.getDeletedTypes().isEmpty()) { |
| CompletableFuture<AppSearchResult<Bundle>> setSchema2Future = |
| new CompletableFuture<>(); |
| // only trigger second setSchema() call if the first one is fail. |
| mService.setSchema( |
| mPackageName, |
| mDatabaseName, |
| schemaBundles, |
| new ArrayList<>(request.getSchemasNotDisplayedBySystem()), |
| schemasVisibleToPackagesBundles, |
| /*forceOverride=*/ true, |
| request.getVersion(), |
| mUserHandle, |
| /*binderCallStartTimeMillis=*/ SystemClock.elapsedRealtime(), |
| new IAppSearchResultCallback.Stub() { |
| @Override |
| public void onResult(AppSearchResultParcel resultParcel) { |
| setSchema2Future.complete(resultParcel.getResult()); |
| } |
| }); |
| AppSearchResult<Bundle> setSchema2Result = setSchema2Future.get(); |
| if (!setSchema2Result.isSuccess()) { |
| // we failed to set the schema in second time with forceOverride = true, |
| // which is an impossible case. Since we only swallow the incompatible |
| // error in the first setSchema call, all other errors will be thrown at |
| // the first time. |
| callbackExecutor.execute(() -> callback.accept( |
| AppSearchResult.newFailedResult(setSchema2Result))); |
| return; |
| } |
| } |
| |
| SetSchemaResponse.Builder responseBuilder = setSchemaResponse.toBuilder() |
| .addMigratedTypes(activeMigrators.keySet()); |
| |
| // 6. Put all the migrated documents into the index, now that the new schema is |
| // set. |
| AppSearchResult<SetSchemaResponse> putResult = |
| migrationHelper.putMigratedDocuments(responseBuilder); |
| callbackExecutor.execute(() -> callback.accept(putResult)); |
| } |
| } catch (Throwable t) { |
| callbackExecutor.execute(() -> callback.accept( |
| AppSearchResult.throwableToFailedResult(t))); |
| } |
| }); |
| } |
| |
| /** |
| * Calls {@link BatchResultCallback#onSystemError} with a throwable derived from the given |
| * failed {@link AppSearchResult}. |
| * |
| * <p>The {@link AppSearchResult} generally comes from |
| * {@link IAppSearchBatchResultCallback#onSystemError}. |
| * |
| * <p>This method should be called from the callback executor thread. |
| */ |
| private void sendSystemErrorToCallback( |
| @NonNull AppSearchResult<?> failedResult, @NonNull BatchResultCallback<?, ?> callback) { |
| Preconditions.checkArgument(!failedResult.isSuccess()); |
| Throwable throwable = new AppSearchException( |
| failedResult.getResultCode(), failedResult.getErrorMessage()); |
| callback.onSystemError(throwable); |
| } |
| } |
