Example usage for com.google.gson.stream JsonReader JsonReader

List of usage examples for com.google.gson.stream JsonReader JsonReader

  1. HOME
  2. Java
  3. com.google.gson
  4. com.google.gson.stream.*
  5. JsonReader
  6. JsonReader

Introduction

In this page you can find the example usage for com.google.gson.stream JsonReader JsonReader.

Prototype

public JsonReader(Reader in)

Source Link

Document

Creates a new instance that reads a JSON-encoded stream from in .

Usage

From source file:com.aliyun.openservices.odps.console.common.JobDetailInfo.java

License:Apache License

private void getInfoFromJsonSummary(List<FuxiJob> fuxiJobs, String jsonSummaryContent) throws IOException {
    jsonSummaryContent = jsonSummaryContent.replaceAll("\n", " ");
    jsonSummaryContent = jsonSummaryContent.replaceAll("\t", " ");
    jsonSummaryContent = jsonSummaryContent.replace("\\\"", "\"");

    JsonReader reader = new JsonReader(
            new InputStreamReader(new ByteArrayInputStream(jsonSummaryContent.getBytes())));

    reader.beginObject();//from  ww  w.  j av a  2 s  . c  o m
    while (reader.hasNext()) {
        String name = reader.nextName();
        if (name.equals("jobs")) {
            reader.beginArray();

            int jobCount = 0;
            // Get more info for each job
            while (reader.hasNext()) {
                reader.beginObject();
                FuxiJob job = fuxiJobs.get(jobCount);
                while (reader.hasNext()) {
                    String nameInJobs = reader.nextName();
                    if (nameInJobs.equals("tasks")) {
                        reader.beginObject();

                        int taskCount = 0;
                        // Get more info for each task
                        while (reader.hasNext()) {
                            String taskName = reader.nextName();
                            FuxiTask task = job.tasks.get(taskCount);

                            // Get the downstream tasks info
                            reader.beginObject();
                            while (reader.hasNext()) {
                                if (reader.nextName().equals("output_record_counts")) {
                                    List<String> downTasks = new ArrayList<String>();
                                    reader.beginObject();
                                    while (reader.hasNext()) {
                                        downTasks.add(reader.nextName());
                                        reader.skipValue();
                                    }
                                    reader.endObject();
                                    addUpAndDownTasks(job, task.name, downTasks);
                                } else {
                                    reader.skipValue();
                                }
                            }
                            reader.endObject();
                            taskCount++;
                        }
                        reader.endObject();
                    } else {
                        reader.skipValue();
                    }
                }
                reader.endObject();
                jobCount++;
            }
            reader.endArray();
        } else {
            reader.skipValue();
        }
    }
    reader.endObject();
}

From source file:com.andgate.ikou.io.LevelService.java

License:Open Source License

public static Level read(final FileHandle levelFile) throws IOException {
    Level level = null;//from w w  w  . j  a  v  a 2 s.  c o m

    if (levelFile.exists() && levelFile.extension().equals(Constants.LEVEL_EXTENSION_NO_DOT)) {
        InputStream levelIn = new GZIPInputStream(levelFile.read());
        Reader reader = new BufferedReader(new InputStreamReader(levelIn));
        JsonReader jsonReader = new JsonReader(reader);

        try {
            // Skip the first int, it's just the floor numbers.
            levelIn.read();
            Gson gson = new Gson();
            level = gson.fromJson(jsonReader, Level.class);
        } finally {
            jsonReader.close();
        }
    }

    if (level == null) {
        final String errorMessage = "Failed to load level \"" + levelFile.path() + levelFile.name() + "\"";
        throw new IOException(errorMessage);
    }

    return level;
}

From source file:com.andrewreitz.onthisday.ui.flow.GsonParcer.java

License:Apache License

private T decode(String json) throws IOException {
    JsonReader reader = new JsonReader(new StringReader(json));

    try {//w ww .j  a  v  a 2 s.  co m
        reader.beginObject();

        Class<?> type = Class.forName(reader.nextName());
        return gson.fromJson(reader, type);
    } catch (ClassNotFoundException e) {
        throw new RuntimeException(e);
    } finally {
        reader.close();
    }
}

From source file:com.android.ide.common.blame.MergingLogPersistUtil.java

License:Apache License

@NonNull
static Map<SourceFile, Map<SourcePosition, SourceFilePosition>> loadFromMultiFile(@NonNull File folder,
        @NonNull String shard) {/*ww w.  j a v a 2s.  co  m*/
    Map<SourceFile, Map<SourcePosition, SourceFilePosition>> map = Maps.newConcurrentMap();
    JsonReader reader;
    File file = getMultiFile(folder, shard);
    if (!file.exists()) {
        return map;
    }
    try {
        reader = new JsonReader(Files.newReader(file, Charsets.UTF_8));
    } catch (FileNotFoundException e) {
        // Shouldn't happen unless it disappears under us.
        return map;
    }
    try {
        reader.beginArray();
        while (reader.peek() != JsonToken.END_ARRAY) {
            reader.beginObject();
            SourceFile toFile = SourceFile.UNKNOWN;
            Map<SourcePosition, SourceFilePosition> innerMap = Maps.newLinkedHashMap();
            while (reader.peek() != JsonToken.END_OBJECT) {
                final String name = reader.nextName();
                if (name.equals(KEY_OUTPUT_FILE)) {
                    toFile = mSourceFileJsonTypeAdapter.read(reader);
                } else if (name.equals(KEY_MAP)) {
                    reader.beginArray();
                    while (reader.peek() != JsonToken.END_ARRAY) {
                        reader.beginObject();
                        SourceFilePosition from = null;
                        SourcePosition to = null;
                        while (reader.peek() != JsonToken.END_OBJECT) {
                            final String innerName = reader.nextName();
                            if (innerName.equals(KEY_FROM)) {
                                from = mSourceFilePositionJsonTypeAdapter.read(reader);
                            } else if (innerName.equals(KEY_TO)) {
                                to = mSourcePositionJsonTypeAdapter.read(reader);
                            } else {
                                throw new IOException(String.format("Unexpected property: %s", innerName));
                            }
                        }
                        if (from == null || to == null) {
                            throw new IOException("Each record must contain both from and to.");
                        }
                        innerMap.put(to, from);
                        reader.endObject();
                    }
                    reader.endArray();
                } else {
                    throw new IOException(String.format("Unexpected property: %s", name));
                }
            }
            map.put(toFile, innerMap);
            reader.endObject();
        }
        reader.endArray();
        return map;
    } catch (IOException e) {
        // TODO: trigger a non-incremental merge if this happens.
        throw new RuntimeException(e);
    } finally {
        try {
            reader.close();
        } catch (Throwable e2) {
            // well, we tried.
        }
    }
}

From source file:com.android.ide.common.blame.MergingLogPersistUtil.java

License:Apache License

@NonNull
static Map<SourceFile, SourceFile> loadFromSingleFile(@NonNull File folder, @NonNull String shard) {
    Map<SourceFile, SourceFile> fileMap = Maps.newConcurrentMap();
    JsonReader reader;/*from w  ww . j a  v  a  2 s. c  om*/
    File file = getSingleFile(folder, shard);
    if (!file.exists()) {
        return fileMap;
    }
    try {
        reader = new JsonReader(Files.newReader(file, Charsets.UTF_8));
    } catch (FileNotFoundException e) {
        // Shouldn't happen unless it disappears under us.
        return fileMap;
    }
    try {
        reader.beginArray();
        while (reader.peek() != JsonToken.END_ARRAY) {
            reader.beginObject();
            SourceFile merged = SourceFile.UNKNOWN;
            SourceFile source = SourceFile.UNKNOWN;
            while (reader.peek() != JsonToken.END_OBJECT) {
                String name = reader.nextName();
                if (name.equals(KEY_MERGED)) {
                    merged = mSourceFileJsonTypeAdapter.read(reader);
                } else if (name.equals(KEY_SOURCE)) {
                    source = mSourceFileJsonTypeAdapter.read(reader);
                } else {
                    throw new IOException(String.format("Unexpected property: %s", name));
                }
            }
            reader.endObject();
            fileMap.put(merged, source);
        }
        reader.endArray();
        return fileMap;
    } catch (IOException e) {
        // TODO: trigger a non-incremental merge if this happens.
        throw new RuntimeException(e);
    } finally {
        try {
            reader.close();
        } catch (Throwable e) {
            // well, we tried.
        }
    }
}

From source file:com.appunity.ant.Utils.java

License:Apache License

protected static ProjectProfile getProfile(Task task, String profilePath) {
    ProjectProfile profile = null;// w  w  w .  ja v a  2s .co  m
    try {
        Gson gson = new Gson();
        JsonParser parser = new JsonParser();
        InputStreamReader reader = new InputStreamReader(
                new FileInputStream(obtainValidPath(task, profilePath, "project.profile")), "UTF-8");
        JsonReader jsonReader = new JsonReader(reader);
        JsonObject asJsonObject = parser.parse(jsonReader).getAsJsonObject();
        profile = gson.fromJson(asJsonObject.get("project"), ProjectProfile.class);
    } catch (FileNotFoundException ex) {
        Logger.getLogger(InitProjectTask.class.getName()).log(Level.SEVERE, null, ex);
    } catch (UnsupportedEncodingException ex) {
        Logger.getLogger(InitProjectTask.class.getName()).log(Level.SEVERE, null, ex);
    } catch (JsonIOException ex) {
        Logger.getLogger(InitProjectTask.class.getName()).log(Level.SEVERE, null, ex);
    } catch (JsonSyntaxException ex) {
        Logger.getLogger(InitProjectTask.class.getName()).log(Level.SEVERE, null, ex);
    }
    return profile;
}

From source file:com.arbalest.net.converter.GsonConverter.java

License:Open Source License

private Object convertObject(InputStream in, Type type)
        throws ArbalestNetworkException, ArbalestResponseException {
    JsonReader reader = null;// www  .jav a2 s .c o m
    try {
        reader = new JsonReader(new InputStreamReader(in, DEFAULT_CHARSET));
        Gson gson = mDefaultGsonBuilder.create();
        return gson.fromJson(reader, type);
    } catch (JsonSyntaxException e) {
        throw new ArbalestResponseException(e);
    } catch (IOException e) {
        throw new ArbalestNetworkException(e);
    } finally {
        CloseableUtils.close(reader);
    }
}

From source file:com.arbalest.net.converter.GsonConverter.java

License:Open Source License

@SuppressWarnings("unchecked")
private <T> T convertArray(InputStream in, Class<T> clazz)
        throws ArbalestNetworkException, ArbalestResponseException {
    JsonReader reader = null;// www  .  ja va 2s  . com
    try {
        reader = new JsonReader(new InputStreamReader(in, DEFAULT_CHARSET));
        Class<?> type = clazz.getComponentType();
        Gson gson = mDefaultGsonBuilder.create();
        List<Object> list = new ArrayList<Object>();

        reader.beginArray();

        while (reader.hasNext()) {
            list.add(gson.fromJson(reader, type));
        }

        reader.endArray();

        return (T) list.toArray((T[]) Array.newInstance(type, list.size()));
    } catch (JsonSyntaxException e) {
        throw new ArbalestResponseException(e);
    } catch (IOException e) {
        throw new ArbalestNetworkException(e);
    } finally {
        CloseableUtils.close(reader);
    }
}

From source file:com.asakusafw.lang.inspection.json.JsonInspectionNodeRepository.java

License:Apache License

@Override
public InspectionNode load(InputStream input) throws IOException {
    try (JsonReader reader = new JsonReader(new InputStreamReader(input, ENCODING))) {
        InspectionNode result = gson.fromJson(reader, InspectionNode.class);
        if (result == null) {
            throw new IOException("there are no valid JSON object");
        }/*www  . ja  va 2  s. c o m*/
        return result;
    } catch (JsonParseException e) {
        throw new IOException("invalid JSON object", e);
    }
}

From source file:com.astech.mnlottery.web.EditGameList.java

/**
 * Handles the HTTP <code>GET</code> method.
 *
 * @param request servlet request/*  w ww  .  j  a  v a  2s  .c o  m*/
 * @param response servlet response
 * @throws ServletException if a servlet-specific error occurs
 * @throws IOException if an I/O error occurs
 */
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    String operation = request.getParameter("operation");
    if (operation != null) {
        int lotteryGameId = Integer.parseInt(request.getParameter("lotteryGameId"));
        switch (operation) {
        case "delete":
            Gson gson = new GsonBuilder().setDateFormat("yyyy-MM-dd'T'HH:mm:ss").create();
            LotteryGameResponse lotGameObj = null;
            String fetchUrl = "http://localhost:8080/AstonTech.MNLottery.RestService/webresources/lotGame/get/";
            fetchUrl = fetchUrl + lotteryGameId;
            try {
                URLConnection urlConnection = new URL(fetchUrl).openConnection();
                urlConnection.connect();
                JsonReader reader = new JsonReader(new InputStreamReader(urlConnection.getInputStream()));
                gson = new GsonBuilder().create();
                Type type = new TypeToken<LotteryGameResponse>() {
                }.getType();
                lotGameObj = gson.fromJson(reader, type);
            } catch (IOException | JsonIOException | JsonSyntaxException ex) {
                System.out.println("Exception caught: " + ex);
            }

            String jsonGame = gson.toJson(lotGameObj);
            fetchUrl = "http://localhost:8080/AstonTech.MNLottery.RestService/webresources/lotGame/delete";
            try {
                HttpURLConnection urlConnection = (HttpURLConnection) new URL(fetchUrl).openConnection();
                urlConnection.setRequestMethod("POST");
                urlConnection.setDoOutput(true);
                urlConnection.setDoInput(true);
                urlConnection.addRequestProperty("Content-type", "application/json");
                urlConnection.setRequestProperty("Accept", "text/plain");

                OutputStreamWriter out = new OutputStreamWriter(urlConnection.getOutputStream());
                out.write(jsonGame);
                out.flush();

                BufferedReader reader = new BufferedReader(
                        new InputStreamReader(urlConnection.getInputStream()));
                String line;
                while ((line = reader.readLine()) != null) {
                    System.out.println(line);
                }
            } catch (Exception ex) {
                System.out.println("Exception caught: " + ex);
            }
            break;
        default:
            break;
        }
    }
    request.setAttribute("navBarContent", Builders.buildNavBar(0));
    request.setAttribute("homeNavBar", Builders.buildHomeNavBar(4));

    Collection<LotteryGameResponse> lotGameCol = null;
    lotGameCol = Builders.getGameCollection();
    request.setAttribute("lotteryGameCol", lotGameCol);

    request.getRequestDispatcher("./editGameList.jsp").forward(request, response);
}