| /* |
| * Copyright (C) 2010 Google Inc. |
| * |
| * 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 com.google.caliper; |
| |
| import com.google.gson.JsonParseException; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| |
| /** |
| * Helps with deserialization of results, given uncertainty about the format (xml or json) they |
| * are in. |
| */ |
| public final class ResultsReader { |
| public Result getResult(InputStream in) throws IOException { |
| // save input into a byte array since we may need to read it twice |
| byte[] postedData = readAllBytes(in); |
| Result result; |
| InputStreamReader baisJsonReader = new InputStreamReader(new ByteArrayInputStream(postedData)); |
| try { |
| result = Json.getGsonInstance().fromJson(baisJsonReader, Result.class); |
| } catch (JsonParseException e) { |
| // probably an old client is trying to send data, so try to parse it as XML instead. |
| ByteArrayInputStream baisXml = new ByteArrayInputStream(postedData); |
| try { |
| result = Xml.resultFromXml(baisXml); |
| } catch (Exception e2) { |
| throw new RuntimeException(e); |
| } finally { |
| baisXml.close(); |
| } |
| } finally { |
| baisJsonReader.close(); |
| } |
| return result; |
| } |
| |
| private byte[] readAllBytes(InputStream in) throws IOException { |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| byte[] buf = new byte[4096]; |
| int read; |
| while ((read = in.read(buf)) != -1) { |
| baos.write(buf, 0, read); |
| } |
| return baos.toByteArray(); |
| } |
| } |