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

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

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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.astech.mnlottery.web.GameInfo.java

/**
 * Handles the HTTP <code>GET</code> method.
 *
 * @param request servlet request//from ww w.  j  ava 2s . c  om
 * @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 {
    HttpSession session = request.getSession(true);

    int lotteryGameId = 0;
    if (request.getParameter("lotteryGameId") == null || request.getParameter("lotteryGameId").isEmpty()) {
        lotteryGameId = Integer.parseInt(session.getAttribute("lotteryGameId").toString());
    } else {
        lotteryGameId = Integer.parseInt(request.getParameter("lotteryGameId"));
        session.setAttribute("lotteryGameId", lotteryGameId);
    }
    LotteryGameResponse lotGameObj = null;
    Gson gson = new GsonBuilder().create();

    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);
    }

    request.setAttribute("lotteryGameObj", lotGameObj);

    request.setAttribute("navBarContent", Builders.buildNavBar(lotteryGameId));
    request.setAttribute("gameNavBar", Builders.buildGameNavBar(1, request.getParameter("specRow"),
            Builders.getSpecialName(lotteryGameId)));

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

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

/**
 * Handles the HTTP <code>POST</code> method.
 *
 * @param request servlet request/*  w w w . j a  va 2 s .  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 doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    request.setAttribute("navBarContent", Builders.buildNavBar(0));
    request.setAttribute("homeNavBar", Builders.buildHomeNavBar(1));

    String searchString = request.getParameter("searchString");
    String fetchUrl = "http://localhost:8080/AstonTech.MNLottery.RestService/webresources/lotGame/get/byName/";
    fetchUrl = fetchUrl + searchString;
    Collection<LotteryGameResponse> matchingGames = null;
    try {
        URLConnection urlConnection = new URL(fetchUrl).openConnection();
        urlConnection.connect();
        JsonReader reader = new JsonReader(new InputStreamReader(urlConnection.getInputStream()));
        Gson gson = new GsonBuilder().create();
        Type type = new TypeToken<Collection<LotteryGameResponse>>() {
        }.getType();
        matchingGames = gson.fromJson(reader, type);
    } catch (IOException | JsonIOException | JsonSyntaxException ex) {
        System.out.println("Exception caught: " + ex);
    }

    request.setAttribute("matchingGames", matchingGames);

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

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

/**
 * Handles the HTTP <code>POST</code> method.
 *
 * @param request servlet request/*from  www  . jav  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 doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    int stateId = 0;
    if (request.getParameter("stateSearch").equals("0")) {
        doGet(request, response);
        return;
    } else {
        stateId = Integer.parseInt(request.getParameter("stateSearch"));
    }

    request.setAttribute("stateId", stateId);

    request.setAttribute("navBarContent", Builders.buildNavBar(0));
    request.setAttribute("homeNavBar", Builders.buildHomeNavBar(2));

    Collection<StateResponse> allStates = Builders.getAllStates();
    request.setAttribute("stateCollection", allStates);

    String fetchUrl = "http://localhost:8080/AstonTech.MNLottery.RestService/webresources/lotGame/get/byState/";
    fetchUrl = fetchUrl + stateId;
    Collection<LotteryGameResponse> matchingGames = null;
    try {
        URLConnection urlConnection = new URL(fetchUrl).openConnection();
        urlConnection.connect();
        JsonReader reader = new JsonReader(new InputStreamReader(urlConnection.getInputStream()));
        Gson gson = new GsonBuilder().create();
        Type type = new TypeToken<Collection<LotteryGameResponse>>() {
        }.getType();
        matchingGames = gson.fromJson(reader, type);
    } catch (IOException | JsonIOException | JsonSyntaxException ex) {
        System.out.println("Exception caught: " + ex);
    }

    request.setAttribute("matchingGames", matchingGames);

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

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

/**
 * Handles the HTTP <code>GET</code> method.
 *
 * @param request servlet request/*w  w  w.  ja v  a2 s  .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 {

    log.debug("Debug message");
    log.info("Info message");
    log.warn("Warning Message");
    log.error("Error message");
    log.fatal("Fatal message");

    request.setAttribute("navBarContent", Builders.buildNavBar(0));
    request.setAttribute("homeNavBar", Builders.buildHomeNavBar(3));

    String fetchUrl = "http://localhost:8080/AstonTech.MNLottery.RestService/webresources/lotGame/get/collection";
    Collection<LotteryGameResponse> lotGameCol = null;
    try {
        URLConnection urlConnection = new URL(fetchUrl).openConnection();
        urlConnection.connect();
        JsonReader reader = new JsonReader(new InputStreamReader(urlConnection.getInputStream()));
        Gson gson = new GsonBuilder().create();
        Type type = new TypeToken<Collection<LotteryGameResponse>>() {
        }.getType();
        lotGameCol = gson.fromJson(reader, type);
    } catch (IOException | JsonIOException | JsonSyntaxException ex) {
        System.out.println("Exception caught: " + ex);
    }

    request.setAttribute("matchingGames", lotGameCol);

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

From source file:com.avatarproject.core.storage.Serializer.java

License:Open Source License

/**
 * Gets the object from file/*from www.  j  a v  a  2  s .  c  o m*/
 * @param caller Class<?> of the object being deserialized
 * @param file File containing the object
 * @return Deserialized Object
 */
public static Object get(Class<?> caller, File file) {
    try {
        if (!file.exists()) {
            return null;
        }
        if (file.length() == 0) {
            return null;
        }
        JsonReader reader = new JsonReader(
                new BufferedReader(new InputStreamReader(new FileInputStream(file), "UTF-8")));
        Gson gson = new Gson();
        reader.setLenient(true);
        Object object = gson.fromJson(reader, caller);
        reader.close();
        if (object != null && object instanceof Serializer) {
            ((Serializer) object).setFile(file);
        }
        return object;
    } catch (Exception e) {
        log.warning("Error loading GSON Object '" + caller.getSimpleName() + "' for '" + file.toString() + "'");
        e.printStackTrace();
        return null;
    }
}

From source file:com.baidu.rigel.biplatform.tesseract.isservice.index.service.impl.IndexMetaServiceImpl.java

License:Open Source License

@Override
public List<IndexMeta> loadIndexMetasLocalImage(String idxBaseDir, String currNodeKey, String clusterName) {
    LOGGER.info(String.format(LogInfoConstants.INFO_PATTERN_FUNCTION_BEGIN, "loadIndexMetasLocalImage",
            "[idxBaseDir:" + idxBaseDir + "][currNodeKey:" + currNodeKey + "][clusterName:" + clusterName
                    + "]"));
    List<IndexMeta> result = new ArrayList<IndexMeta>();
    if (!StringUtils.isEmpty(idxBaseDir) && !StringUtils.isEmpty(currNodeKey)) {
        File idxBaseDirFile = new File(idxBaseDir);
        if (FileUtils.isEmptyDir(idxBaseDirFile)) {
            return null;
        } else if (FileUtils.isExistGivingFileSuffix(idxBaseDirFile,
                IndexFileSystemConstants.INDEX_META_IMAGE_FILE_SAVED)) {

            String[] fileNames = idxBaseDirFile.list(new FileUtils.LocalImageFilenameFilter(
                    IndexFileSystemConstants.INDEX_META_IMAGE_FILE_SAVED));
            for (String filePath : fileNames) {
                byte[] fileByte = FileUtils.readFile(idxBaseDir + File.separator + filePath);

                String fileStr = new String(fileByte);
                StringReader sr = new StringReader(fileStr);
                JsonReader jr = new JsonReader(sr);
                jr.setLenient(true);/*from  w  ww .  j  av  a  2s  . com*/
                IndexMeta currMeta = AnswerCoreConstant.GSON.fromJson(jr, new TypeToken<IndexMeta>() {
                }.getType());

                //currNodeKey
                for (IndexShard idxShard : currMeta.getIdxShardList()) {
                    idxShard.setNodeKey(currNodeKey);
                    idxShard.setClusterName(clusterName);
                    idxShard.getReplicaNodeKeyList().clear();
                }
                currMeta.setClusterName(clusterName);

                result.add(currMeta);
            }
        } else {
            for (String currDsDir : idxBaseDirFile.list()) {
                //??????
                List<IndexMeta> tmpResult = loadIndexMetasLocalImage(idxBaseDir + File.separator + currDsDir,
                        currNodeKey, clusterName);
                if (CollectionUtils.isNotEmpty(tmpResult)) {
                    result.addAll(tmpResult);
                }
            }
        }
    }
    LOGGER.info(String.format(LogInfoConstants.INFO_PATTERN_FUNCTION_END, "loadIndexMetasLocalImage",
            "[idxBaseDir:" + idxBaseDir + "][currNodeKey:" + currNodeKey + "][clusterName:" + clusterName
                    + "][result.size:" + result.size() + "]"));
    return result;
}

From source file:com.barenode.bareconnection.RestConnection.java

License:Apache License

@SuppressWarnings("unchecked")
private <T> T read(InputStream in, Class<T> clss) throws IOException {
    if (clss.isAssignableFrom(InputStream.class)) {
        return (T) in;
    } else if (clss.isAssignableFrom(JsonReader.class)) {
        return (T) new JsonReader(new InputStreamReader(in, mIncomingCharset));
    } else if (clss.isAssignableFrom(String.class)) {
        return (T) RestUtils.readString(in, mIncomingCharset);
    } else {/*from ww  w  . j a v  a2s .  co  m*/
        return RestUtils.fromJson(in, mIncomingCharset, clss);
    }
}

From source file:com.battlelancer.seriesguide.dataliberation.JsonImportTask.java

License:Apache License

private void importFromJson(@JsonExportTask.BackupType int type, FileInputStream in)
        throws JsonParseException, IOException, IllegalArgumentException {
    Gson gson = new Gson();
    JsonReader reader = new JsonReader(new InputStreamReader(in, "UTF-8"));
    reader.beginArray();/*from  www.j av  a 2  s .c  om*/

    if (type == JsonExportTask.BACKUP_SHOWS) {
        while (reader.hasNext()) {
            Show show = gson.fromJson(reader, Show.class);
            addShowToDatabase(show);
        }
    } else if (type == JsonExportTask.BACKUP_LISTS) {
        while (reader.hasNext()) {
            List list = gson.fromJson(reader, List.class);
            addListToDatabase(list);
        }
    } else if (type == JsonExportTask.BACKUP_MOVIES) {
        while (reader.hasNext()) {
            Movie movie = gson.fromJson(reader, Movie.class);
            addMovieToDatabase(movie);
        }
    }

    reader.endArray();
    reader.close();
}

From source file:com.battlelancer.seriesguide.dataliberation.JsonImportTask.java

License:Apache License

private int importLists(File importPath) {
    File backupLists = new File(importPath, JsonExportTask.EXPORT_JSON_FILE_LISTS);
    if (!backupLists.exists() || !backupLists.canRead()) {
        // Skip lists if the file is not accessible
        return SUCCESS;
    }//w  w w . j  a v  a 2  s  . co  m

    // Access JSON from backup folder to create new database
    try {
        InputStream in = new FileInputStream(backupLists);

        Gson gson = new Gson();

        JsonReader reader = new JsonReader(new InputStreamReader(in, "UTF-8"));
        reader.beginArray();

        while (reader.hasNext()) {
            List list = gson.fromJson(reader, List.class);
            addListToDatabase(list);
        }

        reader.endArray();
        reader.close();
    } catch (JsonParseException | IOException | IllegalStateException e) {
        // the given Json might not be valid or unreadable
        Timber.e(e, "JSON lists import failed");
        return ERROR;
    }

    return SUCCESS;
}

From source file:com.battlelancer.seriesguide.dataliberation.JsonImportTask.java

License:Apache License

private int importMovies(File importPath) {
    context.getContentResolver().delete(Movies.CONTENT_URI, null, null);
    File backupMovies = new File(importPath, JsonExportTask.EXPORT_JSON_FILE_MOVIES);
    if (!backupMovies.exists() || !backupMovies.canRead()) {
        // Skip movies if the file is not available
        return SUCCESS;
    }/*  w  w  w .  java 2  s .  co m*/

    // Access JSON from backup folder to create new database
    try {
        InputStream in = new FileInputStream(backupMovies);

        Gson gson = new Gson();

        JsonReader reader = new JsonReader(new InputStreamReader(in, "UTF-8"));
        reader.beginArray();

        while (reader.hasNext()) {
            Movie movie = gson.fromJson(reader, Movie.class);
            addMovieToDatabase(movie);
        }

        reader.endArray();
        reader.close();
    } catch (JsonParseException | IOException | IllegalStateException e) {
        // the given Json might not be valid or unreadable
        Timber.e(e, "JSON movies import failed");
        return ERROR;
    }

    return SUCCESS;
}