| /* |
| * Copyright (C) 2019 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.content; |
| |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.content.res.AssetFileDescriptor; |
| import android.database.Cursor; |
| import android.database.DatabaseUtils; |
| import android.net.Uri; |
| import android.os.Binder; |
| import android.os.Bundle; |
| import android.os.CancellationSignal; |
| import android.os.ParcelFileDescriptor; |
| import android.os.RemoteException; |
| import android.util.Log; |
| |
| import java.io.FileNotFoundException; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| |
| /** |
| * Instance of {@link ContentInterface} that logs all inputs and outputs while |
| * delegating to another {@link ContentInterface}. |
| * |
| * @hide |
| */ |
| public class LoggingContentInterface implements ContentInterface { |
| private final String tag; |
| private final ContentInterface delegate; |
| |
| public LoggingContentInterface(String tag, ContentInterface delegate) { |
| this.tag = tag; |
| this.delegate = delegate; |
| } |
| |
| private class Logger implements AutoCloseable { |
| private final StringBuilder sb = new StringBuilder(); |
| |
| public Logger(String method, Object... args) { |
| // First, force-unparcel any bundles so we can log them |
| for (Object arg : args) { |
| if (arg instanceof Bundle) { |
| ((Bundle) arg).size(); |
| } |
| } |
| |
| sb.append("callingUid=").append(Binder.getCallingUid()).append(' '); |
| sb.append(method); |
| sb.append('(').append(deepToString(args)).append(')'); |
| } |
| |
| private String deepToString(Object value) { |
| if (value != null && value.getClass().isArray()) { |
| return Arrays.deepToString((Object[]) value); |
| } else { |
| return String.valueOf(value); |
| } |
| } |
| |
| public <T> T setResult(T res) { |
| if (res instanceof Cursor) { |
| sb.append('\n'); |
| DatabaseUtils.dumpCursor((Cursor) res, sb); |
| } else { |
| sb.append(" = ").append(deepToString(res)); |
| } |
| return res; |
| } |
| |
| @Override |
| public void close() { |
| Log.v(tag, sb.toString()); |
| } |
| } |
| |
| @Override |
| public @Nullable Cursor query(@NonNull Uri uri, @Nullable String[] projection, |
| @Nullable Bundle queryArgs, @Nullable CancellationSignal cancellationSignal) |
| throws RemoteException { |
| try (Logger l = new Logger("query", uri, projection, queryArgs, cancellationSignal)) { |
| try { |
| return l.setResult(delegate.query(uri, projection, queryArgs, cancellationSignal)); |
| } catch (Exception res) { |
| l.setResult(res); |
| throw res; |
| } |
| } |
| } |
| |
| @Override |
| public @Nullable String getType(@NonNull Uri uri) throws RemoteException { |
| try (Logger l = new Logger("getType", uri)) { |
| try { |
| return l.setResult(delegate.getType(uri)); |
| } catch (Exception res) { |
| l.setResult(res); |
| throw res; |
| } |
| } |
| } |
| |
| @Override |
| public @Nullable String[] getStreamTypes(@NonNull Uri uri, @NonNull String mimeTypeFilter) |
| throws RemoteException { |
| try (Logger l = new Logger("getStreamTypes", uri, mimeTypeFilter)) { |
| try { |
| return l.setResult(delegate.getStreamTypes(uri, mimeTypeFilter)); |
| } catch (Exception res) { |
| l.setResult(res); |
| throw res; |
| } |
| } |
| } |
| |
| @Override |
| public @Nullable Uri canonicalize(@NonNull Uri uri) throws RemoteException { |
| try (Logger l = new Logger("canonicalize", uri)) { |
| try { |
| return l.setResult(delegate.canonicalize(uri)); |
| } catch (Exception res) { |
| l.setResult(res); |
| throw res; |
| } |
| } |
| } |
| |
| @Override |
| public @Nullable Uri uncanonicalize(@NonNull Uri uri) throws RemoteException { |
| try (Logger l = new Logger("uncanonicalize", uri)) { |
| try { |
| return l.setResult(delegate.uncanonicalize(uri)); |
| } catch (Exception res) { |
| l.setResult(res); |
| throw res; |
| } |
| } |
| } |
| |
| @Override |
| public boolean refresh(@NonNull Uri uri, @Nullable Bundle args, |
| @Nullable CancellationSignal cancellationSignal) throws RemoteException { |
| try (Logger l = new Logger("refresh", uri, args, cancellationSignal)) { |
| try { |
| return l.setResult(delegate.refresh(uri, args, cancellationSignal)); |
| } catch (Exception res) { |
| l.setResult(res); |
| throw res; |
| } |
| } |
| } |
| |
| @Override |
| public @Nullable Uri insert(@NonNull Uri uri, @Nullable ContentValues initialValues) |
| throws RemoteException { |
| try (Logger l = new Logger("insert", uri, initialValues)) { |
| try { |
| return l.setResult(delegate.insert(uri, initialValues)); |
| } catch (Exception res) { |
| l.setResult(res); |
| throw res; |
| } |
| } |
| } |
| |
| @Override |
| public int bulkInsert(@NonNull Uri uri, @NonNull ContentValues[] initialValues) |
| throws RemoteException { |
| try (Logger l = new Logger("bulkInsert", uri, initialValues)) { |
| try { |
| return l.setResult(delegate.bulkInsert(uri, initialValues)); |
| } catch (Exception res) { |
| l.setResult(res); |
| throw res; |
| } |
| } |
| } |
| |
| @Override |
| public int delete(@NonNull Uri uri, @Nullable String selection, |
| @Nullable String[] selectionArgs) throws RemoteException { |
| try (Logger l = new Logger("delete", uri, selection, selectionArgs)) { |
| try { |
| return l.setResult(delegate.delete(uri, selection, selectionArgs)); |
| } catch (Exception res) { |
| l.setResult(res); |
| throw res; |
| } |
| } |
| } |
| |
| @Override |
| public int update(@NonNull Uri uri, @Nullable ContentValues values, @Nullable String selection, |
| @Nullable String[] selectionArgs) throws RemoteException { |
| try (Logger l = new Logger("update", uri, values, selection, selectionArgs)) { |
| try { |
| return l.setResult(delegate.update(uri, values, selection, selectionArgs)); |
| } catch (Exception res) { |
| l.setResult(res); |
| throw res; |
| } |
| } |
| } |
| |
| @Override |
| public @Nullable ParcelFileDescriptor openFile(@NonNull Uri uri, @NonNull String mode, |
| @Nullable CancellationSignal signal) throws RemoteException, FileNotFoundException { |
| try (Logger l = new Logger("openFile", uri, mode, signal)) { |
| try { |
| return l.setResult(delegate.openFile(uri, mode, signal)); |
| } catch (Exception res) { |
| l.setResult(res); |
| throw res; |
| } |
| } |
| } |
| |
| @Override |
| public @Nullable AssetFileDescriptor openAssetFile(@NonNull Uri uri, @NonNull String mode, |
| @Nullable CancellationSignal signal) throws RemoteException, FileNotFoundException { |
| try (Logger l = new Logger("openAssetFile", uri, mode, signal)) { |
| try { |
| return l.setResult(delegate.openAssetFile(uri, mode, signal)); |
| } catch (Exception res) { |
| l.setResult(res); |
| throw res; |
| } |
| } |
| } |
| |
| @Override |
| public @Nullable AssetFileDescriptor openTypedAssetFile(@NonNull Uri uri, |
| @NonNull String mimeTypeFilter, @Nullable Bundle opts, |
| @Nullable CancellationSignal signal) throws RemoteException, FileNotFoundException { |
| try (Logger l = new Logger("openTypedAssetFile", uri, mimeTypeFilter, opts, signal)) { |
| try { |
| return l.setResult(delegate.openTypedAssetFile(uri, mimeTypeFilter, opts, signal)); |
| } catch (Exception res) { |
| l.setResult(res); |
| throw res; |
| } |
| } |
| } |
| |
| @Override |
| public @NonNull ContentProviderResult[] applyBatch(@NonNull String authority, |
| @NonNull ArrayList<ContentProviderOperation> operations) |
| throws RemoteException, OperationApplicationException { |
| try (Logger l = new Logger("applyBatch", authority, operations)) { |
| try { |
| return l.setResult(delegate.applyBatch(authority, operations)); |
| } catch (Exception res) { |
| l.setResult(res); |
| throw res; |
| } |
| } |
| } |
| |
| @Override |
| public @Nullable Bundle call(@NonNull String authority, @NonNull String method, |
| @Nullable String arg, @Nullable Bundle extras) throws RemoteException { |
| try (Logger l = new Logger("call", authority, method, arg, extras)) { |
| try { |
| return l.setResult(delegate.call(authority, method, arg, extras)); |
| } catch (Exception res) { |
| l.setResult(res); |
| throw res; |
| } |
| } |
| } |
| } |