| /* |
| * Copyright (C) 2014 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.util; |
| |
| import java.io.IOException; |
| |
| /** |
| * Utility methods for proxying richer exceptions across Binder calls. |
| * |
| * @hide |
| */ |
| public class ExceptionUtils { |
| // TODO: longer term these should be replaced with first-class |
| // Parcel.read/writeException() and AIDL support, but for now do this using |
| // a nasty hack. |
| |
| private static final String PREFIX_IO = "\u2603"; |
| |
| public static RuntimeException wrap(IOException e) { |
| throw new IllegalStateException(PREFIX_IO + e.getMessage()); |
| } |
| |
| public static void maybeUnwrapIOException(RuntimeException e) throws IOException { |
| if ((e instanceof IllegalStateException) && e.getMessage().startsWith(PREFIX_IO)) { |
| throw new IOException(e.getMessage().substring(PREFIX_IO.length())); |
| } |
| } |
| |
| public static String getCompleteMessage(String msg, Throwable t) { |
| final StringBuilder builder = new StringBuilder(); |
| if (msg != null) { |
| builder.append(msg).append(": "); |
| } |
| builder.append(t.getMessage()); |
| while ((t = t.getCause()) != null) { |
| builder.append(": ").append(t.getMessage()); |
| } |
| return builder.toString(); |
| } |
| |
| public static String getCompleteMessage(Throwable t) { |
| return getCompleteMessage(null, t); |
| } |
| } |