| /* |
| * Copyright (C) 2006 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.server.data; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| |
| /** |
| * Throwable data transfer object. Keep in sync. with the server side version. |
| */ |
| public class ThrowableData { |
| |
| final String message; |
| final String type; |
| final StackTraceElementData[] stackTrace; |
| final ThrowableData cause; |
| |
| public ThrowableData(Throwable throwable) { |
| this.type = throwable.getClass().getName(); |
| String message = throwable.getMessage(); |
| this.message = message == null ? "" : message; |
| |
| StackTraceElement[] elements = throwable.getStackTrace(); |
| this.stackTrace = new StackTraceElementData[elements.length]; |
| for (int i = 0; i < elements.length; i++) { |
| this.stackTrace[i] = new StackTraceElementData(elements[i]); |
| } |
| |
| Throwable cause = throwable.getCause(); |
| this.cause = cause == null ? null : new ThrowableData(cause); |
| } |
| |
| public ThrowableData(DataInput in) throws IOException { |
| int dataVersion = in.readInt(); |
| if (dataVersion != 0) { |
| throw new IOException("Expected 0. Got: " + dataVersion); |
| } |
| |
| this.message = in.readUTF(); |
| this.type = in.readUTF(); |
| |
| int count = in.readInt(); |
| this.stackTrace = new StackTraceElementData[count]; |
| for (int i = 0; i < count; i++) { |
| this.stackTrace[i] = new StackTraceElementData(in); |
| } |
| |
| this.cause = in.readBoolean() ? new ThrowableData(in) : null; |
| } |
| |
| public void write(DataOutput out) throws IOException { |
| out.writeInt(0); // version |
| |
| out.writeUTF(message); |
| out.writeUTF(type); |
| |
| out.writeInt(stackTrace.length); |
| for (StackTraceElementData elementData : stackTrace) { |
| elementData.write(out); |
| } |
| |
| out.writeBoolean(cause != null); |
| if (cause != null) { |
| cause.write(out); |
| } |
| } |
| |
| public String getMessage() { |
| return message; |
| } |
| |
| public String getType() { |
| return type; |
| } |
| |
| public StackTraceElementData[] getStackTrace() { |
| return stackTrace; |
| } |
| |
| public ThrowableData getCause() { |
| return cause; |
| } |
| |
| |
| public String toString() { |
| return toString(null); |
| } |
| |
| public String toString(String prefix) { |
| StringBuilder builder = new StringBuilder(); |
| append(prefix, builder, this); |
| return builder.toString(); |
| } |
| |
| private static void append(String prefix, StringBuilder builder, |
| ThrowableData throwableData) { |
| if (prefix != null) builder.append(prefix); |
| builder.append(throwableData.getType()) |
| .append(": ") |
| .append(throwableData.getMessage()) |
| .append('\n'); |
| for (StackTraceElementData element : throwableData.getStackTrace()) { |
| if (prefix != null ) builder.append(prefix); |
| builder.append(" at ") |
| .append(element.getClassName()) |
| .append('.') |
| .append(element.getMethodName()) |
| .append("(") |
| .append(element.getFileName()) |
| .append(':') |
| .append(element.getLineNumber()) |
| .append(")\n"); |
| |
| } |
| |
| ThrowableData cause = throwableData.getCause(); |
| if (cause != null) { |
| if (prefix != null ) builder.append(prefix); |
| builder.append("Caused by: "); |
| append(prefix, builder, cause); |
| } |
| } |
| } |