Jeff Sharkey | bffd250 | 2019-02-28 16:39:12 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2019 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package android.content; |
| 18 | |
| 19 | import android.annotation.NonNull; |
| 20 | import android.annotation.Nullable; |
| 21 | import android.content.res.AssetFileDescriptor; |
| 22 | import android.database.Cursor; |
| 23 | import android.database.DatabaseUtils; |
| 24 | import android.net.Uri; |
| 25 | import android.os.Binder; |
| 26 | import android.os.Bundle; |
| 27 | import android.os.CancellationSignal; |
| 28 | import android.os.ParcelFileDescriptor; |
| 29 | import android.os.RemoteException; |
| 30 | import android.util.Log; |
| 31 | |
| 32 | import java.io.FileNotFoundException; |
| 33 | import java.util.ArrayList; |
| 34 | import java.util.Arrays; |
| 35 | |
| 36 | /** |
| 37 | * Instance of {@link ContentInterface} that logs all inputs and outputs while |
| 38 | * delegating to another {@link ContentInterface}. |
| 39 | * |
| 40 | * @hide |
| 41 | */ |
| 42 | public class LoggingContentInterface implements ContentInterface { |
| 43 | private final String tag; |
| 44 | private final ContentInterface delegate; |
| 45 | |
| 46 | public LoggingContentInterface(String tag, ContentInterface delegate) { |
| 47 | this.tag = tag; |
| 48 | this.delegate = delegate; |
| 49 | } |
| 50 | |
| 51 | private void log(String method, Object res, Object... args) { |
| 52 | // First, force-unparcel any bundles so we can log them |
| 53 | for (Object arg : args) { |
| 54 | if (arg instanceof Bundle) { |
| 55 | ((Bundle) arg).size(); |
| 56 | } |
| 57 | } |
| 58 | |
| 59 | final StringBuilder sb = new StringBuilder(); |
| 60 | sb.append("callingUid=").append(Binder.getCallingUid()).append(' '); |
| 61 | sb.append(method); |
| 62 | sb.append('(').append(deepToString(args)).append(')'); |
| 63 | if (res instanceof Cursor) { |
| 64 | sb.append('\n'); |
| 65 | DatabaseUtils.dumpCursor((Cursor) res, sb); |
| 66 | } else { |
| 67 | sb.append(" = ").append(deepToString(res)); |
| 68 | } |
| 69 | Log.v(tag, sb.toString()); |
| 70 | } |
| 71 | |
| 72 | private String deepToString(Object value) { |
| 73 | if (value != null && value.getClass().isArray()) { |
| 74 | return Arrays.deepToString((Object[]) value); |
| 75 | } else { |
| 76 | return String.valueOf(value); |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | @Override |
| 81 | public @Nullable Cursor query(@NonNull Uri uri, @Nullable String[] projection, |
| 82 | @Nullable Bundle queryArgs, @Nullable CancellationSignal cancellationSignal) |
| 83 | throws RemoteException { |
| 84 | final Cursor res = delegate.query(uri, projection, queryArgs, cancellationSignal); |
| 85 | log("query", res, uri, projection, queryArgs, cancellationSignal); |
| 86 | return res; |
| 87 | } |
| 88 | |
| 89 | @Override |
| 90 | public @Nullable String getType(@NonNull Uri uri) throws RemoteException { |
| 91 | final String res = delegate.getType(uri); |
| 92 | log("getType", res, uri); |
| 93 | return res; |
| 94 | } |
| 95 | |
| 96 | @Override |
| 97 | public @Nullable String[] getStreamTypes(@NonNull Uri uri, @NonNull String mimeTypeFilter) |
| 98 | throws RemoteException { |
| 99 | final String[] res = delegate.getStreamTypes(uri, mimeTypeFilter); |
| 100 | log("getStreamTypes", res, uri, mimeTypeFilter); |
| 101 | return res; |
| 102 | } |
| 103 | |
| 104 | @Override |
| 105 | public @Nullable Uri canonicalize(@NonNull Uri uri) throws RemoteException { |
| 106 | final Uri res = delegate.canonicalize(uri); |
| 107 | log("canonicalize", res, uri); |
| 108 | return res; |
| 109 | } |
| 110 | |
| 111 | @Override |
| 112 | public @Nullable Uri uncanonicalize(@NonNull Uri uri) throws RemoteException { |
| 113 | final Uri res = delegate.uncanonicalize(uri); |
| 114 | log("uncanonicalize", res, uri); |
| 115 | return res; |
| 116 | } |
| 117 | |
| 118 | @Override |
| 119 | public boolean refresh(@NonNull Uri uri, @Nullable Bundle args, |
| 120 | @Nullable CancellationSignal cancellationSignal) throws RemoteException { |
| 121 | final boolean res = delegate.refresh(uri, args, cancellationSignal); |
| 122 | log("refresh", res, uri, args, cancellationSignal); |
| 123 | return res; |
| 124 | } |
| 125 | |
| 126 | @Override |
| 127 | public @Nullable Uri insert(@NonNull Uri uri, @Nullable ContentValues initialValues) |
| 128 | throws RemoteException { |
| 129 | final Uri res = delegate.insert(uri, initialValues); |
| 130 | log("insert", res, uri, initialValues); |
| 131 | return res; |
| 132 | } |
| 133 | |
| 134 | @Override |
| 135 | public int bulkInsert(@NonNull Uri uri, @NonNull ContentValues[] initialValues) |
| 136 | throws RemoteException { |
| 137 | final int res = delegate.bulkInsert(uri, initialValues); |
| 138 | log("bulkInsert", res, uri, initialValues); |
| 139 | return res; |
| 140 | } |
| 141 | |
| 142 | @Override |
| 143 | public int delete(@NonNull Uri uri, @Nullable String selection, |
| 144 | @Nullable String[] selectionArgs) throws RemoteException { |
| 145 | final int res = delegate.delete(uri, selection, selectionArgs); |
| 146 | log("delete", res, uri, selection, selectionArgs); |
| 147 | return res; |
| 148 | } |
| 149 | |
| 150 | @Override |
| 151 | public int update(@NonNull Uri uri, @Nullable ContentValues values, @Nullable String selection, |
| 152 | @Nullable String[] selectionArgs) throws RemoteException { |
| 153 | final int res = delegate.update(uri, values, selection, selectionArgs); |
| 154 | log("update", res, uri, values, selection, selectionArgs); |
| 155 | return res; |
| 156 | } |
| 157 | |
| 158 | @Override |
| 159 | public @Nullable ParcelFileDescriptor openFile(@NonNull Uri uri, @NonNull String mode, |
| 160 | @Nullable CancellationSignal signal) throws RemoteException, FileNotFoundException { |
| 161 | final ParcelFileDescriptor res = delegate.openFile(uri, mode, signal); |
| 162 | log("openFile", res, uri, mode, signal); |
| 163 | return res; |
| 164 | } |
| 165 | |
| 166 | @Override |
| 167 | public @Nullable AssetFileDescriptor openAssetFile(@NonNull Uri uri, @NonNull String mode, |
| 168 | @Nullable CancellationSignal signal) throws RemoteException, FileNotFoundException { |
| 169 | final AssetFileDescriptor res = delegate.openAssetFile(uri, mode, signal); |
| 170 | log("openAssetFile", res, uri, mode, signal); |
| 171 | return res; |
| 172 | } |
| 173 | |
| 174 | @Override |
| 175 | public @Nullable AssetFileDescriptor openTypedAssetFile(@NonNull Uri uri, |
| 176 | @NonNull String mimeTypeFilter, @Nullable Bundle opts, |
| 177 | @Nullable CancellationSignal signal) throws RemoteException, FileNotFoundException { |
| 178 | final AssetFileDescriptor res = delegate.openTypedAssetFile(uri, mimeTypeFilter, opts, signal); |
| 179 | log("openTypedAssetFile", res, uri, mimeTypeFilter, opts, signal); |
| 180 | return res; |
| 181 | } |
| 182 | |
| 183 | @Override |
| 184 | public @NonNull ContentProviderResult[] applyBatch(@NonNull String authority, |
| 185 | @NonNull ArrayList<ContentProviderOperation> operations) |
| 186 | throws RemoteException, OperationApplicationException { |
| 187 | final ContentProviderResult[] res = delegate.applyBatch(authority, operations); |
| 188 | log("applyBatch", res, authority, operations); |
| 189 | return res; |
| 190 | } |
| 191 | |
| 192 | @Override |
| 193 | public @Nullable Bundle call(@NonNull String authority, @NonNull String method, |
| 194 | @Nullable String arg, @Nullable Bundle extras) throws RemoteException { |
| 195 | final Bundle res = delegate.call(authority, method, arg, extras); |
| 196 | log("call", res, authority, method, arg, extras); |
| 197 | return res; |
| 198 | } |
| 199 | } |