Example usage for com.google.gson.stream JsonReader 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.google.gdt.googleapi.core.ApiDirectoryListingJsonCodec.java

License:Open Source License

public Map<String, String> toIconCacheMap(InputStream in) {
    try {//from   w  w w  .jav a 2 s .c om
        JsonReader reader = new JsonReader(new InputStreamReader(in, "UTF-8"));
        return gson.fromJson(reader, Map.class);
    } catch (UnsupportedEncodingException e) {
        return Collections.emptyMap();
    }
}

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From source file:com.google.gerrit.httpd.restapi.RestApiServlet.java

License:Apache License

private Object parseRequest(HttpServletRequest req, Type type) throws IOException, BadRequestException,
        SecurityException, IllegalArgumentException, NoSuchMethodException, IllegalAccessException,
        InstantiationException, InvocationTargetException, MethodNotAllowedException {
    if (isType(JSON_TYPE, req.getContentType())) {
        try (BufferedReader br = req.getReader(); JsonReader json = new JsonReader(br)) {
            json.setLenient(true);//  w w  w  . j  a v a 2s  . c  o m

            JsonToken first;
            try {
                first = json.peek();
            } catch (EOFException e) {
                throw new BadRequestException("Expected JSON object");
            }
            if (first == JsonToken.STRING) {
                return parseString(json.nextString(), type);
            }
            return OutputFormat.JSON.newGson().fromJson(json, type);
        }
    } else if (("PUT".equals(req.getMethod()) || "POST".equals(req.getMethod())) && acceptsRawInput(type)) {
        return parseRawInput(req, type);
    } else if ("DELETE".equals(req.getMethod()) && hasNoBody(req)) {
        return null;
    } else if (hasNoBody(req)) {
        return createInstance(type);
    } else if (isType("text/plain", req.getContentType())) {
        try (BufferedReader br = req.getReader()) {
            char[] tmp = new char[256];
            StringBuilder sb = new StringBuilder();
            int n;
            while (0 < (n = br.read(tmp))) {
                sb.append(tmp, 0, n);
            }
            return parseString(sb.toString(), type);
        }
    } else if ("POST".equals(req.getMethod()) && isType(FORM_TYPE, req.getContentType())) {
        return OutputFormat.JSON.newGson().fromJson(ParameterParser.formToJson(req), type);
    } else {
        throw new BadRequestException("Expected Content-Type: " + JSON_TYPE);
    }
}

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From source file:com.google.iosched.input.fetcher.RemoteJsonHelper.java

License:Open Source License

public static JsonObject fetchJsonFromPublicURL(String urlStr) throws IOException {
    URL url = new URL(urlStr);

    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    connection.setReadTimeout(1000 * 30); // 30 seconds
    int response = connection.getResponseCode();
    if (response < 200 || response >= 300) {
        throw new IllegalArgumentException("Unexpected HTTP response [" + response + "] at URL: " + urlStr);
    }/*from   w  w  w.j ava  2  s.co  m*/

    InputStream stream = connection.getInputStream();
    JsonReader reader = new JsonReader(new InputStreamReader(stream, Charset.forName("UTF-8")));
    return (JsonObject) new JsonParser().parse(reader);
}

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From source file:com.google.javascript.jscomp.AbstractCommandLineRunner.java

License:Apache License

public List<JsonFileSpec> parseJsonFilesFromInputStream() throws IOException {
    List<JsonFileSpec> jsonFiles = new ArrayList<>();
    try (JsonReader reader = new JsonReader(new InputStreamReader(this.in, inputCharset))) {
        reader.beginArray();//from  w  w  w  .j  a va 2s.  co  m
        while (reader.hasNext()) {
            JsonFileSpec jsonFile = gson.fromJson(reader, JsonFileSpec.class);
            jsonFiles.add(jsonFile);
        }
        reader.endArray();
    }
    return jsonFiles;
}

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From source file:com.google.samples.apps.iosched.server.schedule.input.fetcher.VendorAPIEntityFetcher.java

License:Open Source License

@Override
public JsonElement fetch(Enum<?> entityType, Map<String, String> params) throws IOException {
    StringBuilder urlStr = new StringBuilder(BASE_URL);
    urlStr.append(entityType.name());/*  w w w  . j  av  a  2s .  c  om*/
    if (params != null && !params.isEmpty()) {
        urlStr.append("?");
        for (Map.Entry<String, String> param : params.entrySet()) {
            urlStr.append(param.getKey()).append("=").append(param.getValue()).append("&");

        }
        urlStr.deleteCharAt(urlStr.length() - 1);
    }

    URL url = new URL(urlStr.toString());
    if (LOG.isLoggable(Level.INFO)) {
        LOG.info("URL requested: " + url);
    }

    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    connection.setReadTimeout(1000 * 30); // 30 seconds
    connection.setRequestProperty("code", Config.CMS_API_CODE);
    connection.setRequestProperty("apikey", Config.CMS_API_KEY);

    InputStream stream = connection.getInputStream();
    JsonReader reader = new JsonReader(new InputStreamReader(stream, Charset.forName("UTF-8")));
    return new JsonParser().parse(reader);
}

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From source file:com.google.samples.apps.iosched.sync.ConferenceDataHandler.java

License:Open Source License

/**
 * Processes a conference data body and calls the appropriate data type handlers
 * to process each of the objects represented therein.
 *
 * @param dataBody The body of data to process
 * @throws IOException If there is an error parsing the data.
 *///from   w  ww .j  av a2  s.  c  o m
private void processDataBody(String dataBody) throws IOException {
    JsonReader reader = new JsonReader(new StringReader(dataBody));
    JsonParser parser = new JsonParser();
    try {
        reader.setLenient(true); // To err is human

        // the whole file is a single JSON object
        reader.beginObject();

        while (reader.hasNext()) {
            // the key is "rooms", "speakers", "tracks", etc.
            String key = reader.nextName();
            if (mHandlerForKey.containsKey(key)) {
                // pass the value to the corresponding handler
                mHandlerForKey.get(key).process(parser.parse(reader));
            } else {
                LOGW(TAG, "Skipping unknown key in conference data json: " + key);
                reader.skipValue();
            }
        }
        reader.endObject();
    } finally {
        reader.close();
    }
}

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From source file:com.google.samples.apps.iosched.sync.userdata.util.UserActionHelper.java

License:Open Source License

public static List<UserAction> deserializeUserActions(String str) {
    try {/*from   w w w. ja  va  2  s  .  c  o m*/
        ArrayList<UserAction> actions = new ArrayList<UserAction>();
        JsonReader reader = new JsonReader(new StringReader(str));
        reader.beginArray();
        while (reader.hasNext()) {
            reader.beginObject();
            UserAction action = new UserAction();
            while (reader.hasNext()) {
                String key = reader.nextName();
                if ("type".equals(key)) {
                    action.type = UserAction.TYPE.valueOf(reader.nextString());
                } else if ("id".equals(key)) {
                    action.sessionId = reader.nextString();
                } else {
                    throw new RuntimeException("Invalid key " + key + " in serialized UserAction: " + str);
                }
            }
            reader.endObject();
            actions.add(action);
        }
        reader.endArray();
        return actions;
    } catch (IOException ex) {
        throw new RuntimeException("Error deserializing UserActions: " + str, ex);
    }
}

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From source file:com.google.samples.apps.iosched.sync.userdata.util.UserDataHelper.java

License:Open Source License

static public Set<String> fromString(String str) {
    TreeSet<String> result = new TreeSet<String>();
    if (str == null || str.isEmpty()) {
        return result;
    }/*from  w w  w  .j  a v  a2s. c om*/
    try {
        JsonReader reader = new JsonReader(new StringReader(str));
        reader.beginObject();
        while (reader.hasNext()) {
            String key = reader.nextName();
            if (JSON_STARRED_SESSIONS_KEY.equals(key)) {
                reader.beginArray();
                while (reader.hasNext()) {
                    result.add(reader.nextString());
                }
                reader.endArray();
            } else {
                reader.skipValue();
            }
        }
        reader.endObject();
        reader.close();
    } catch (Exception ex) {
        Log.w(TAG, "Ignoring invalid remote content.", ex);
        return null;
    }
    return result;
}

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From source file:com.google.security.wycheproof.JsonUtil.java

License:Apache License

/**
 * Reads a set of test vectors from a file.
 * @param filename the name of the file, local to the directory with the
 *        the test vectors./*from ww w  .  j a v a  2s .  c  om*/
 * @return a JsonObject with a test
 * @throws IOException if the test vectors could not be read.
 * @throws JsonParseException if the file is not valid JSON.
 */
public static JsonObject getTestVectors(String filename) throws IOException {
    // The directory where the test vectors are.
    String testVectorsDir = "testvectors/";
    FileInputStream is = new FileInputStream(testVectorsDir + filename);
    JsonReader reader = new JsonReader(new InputStreamReader(is, UTF_8));
    JsonParser parser = new JsonParser();
    JsonElement elem = parser.parse(reader);
    return elem.getAsJsonObject();
}

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From source file:com.hichinaschool.flashcards.async.DeckTask.java

License:Open Source License

private TaskData doInBackgroundImportReplace(TaskData... params) {
    // Log.i(AnkiDroidApp.TAG, "doInBackgroundImportReplace");
    Collection col = params[0].getCollection();
    String path = params[0].getString();
    Resources res = AnkiDroidApp.getInstance().getBaseContext().getResources();

    // extract the deck from the zip file
    String fileDir = AnkiDroidApp.getCurrentAnkiDroidDirectory() + "/tmpzip";
    File dir = new File(fileDir);
    if (dir.exists()) {
        BackupManager.removeDir(dir);/*  w w  w . j  ava  2s.co  m*/
    }

    publishProgress(new TaskData(res.getString(R.string.import_unpacking)));
    // from anki2.py
    String colFile = fileDir + "/collection.anki2";
    ZipFile zip;
    try {
        zip = new ZipFile(new File(path), ZipFile.OPEN_READ);
    } catch (IOException e) {
        Log.e(AnkiDroidApp.TAG, "doInBackgroundImportReplace - Error while unzipping: ", e);
        AnkiDroidApp.saveExceptionReportFile(e, "doInBackgroundImportReplace0");
        return new TaskData(false);
    }
    if (!Utils.unzipFiles(zip, fileDir, new String[] { "collection.anki2", "media" }, null)
            || !(new File(colFile)).exists()) {
        return new TaskData(-2, null, false);
    }

    Collection tmpCol = null;
    try {
        tmpCol = Storage.Collection(colFile);
        if (!tmpCol.validCollection()) {
            tmpCol.close();
            return new TaskData(-2, null, false);
        }
    } finally {
        if (tmpCol != null) {
            tmpCol.close();
        }
    }

    publishProgress(new TaskData(res.getString(R.string.importing_collection)));
    String colPath;
    if (col != null) {
        // unload collection and trigger a backup
        colPath = col.getPath();
        AnkiDroidApp.closeCollection(true);
        BackupManager.performBackup(colPath, true);
    }
    // overwrite collection
    colPath = AnkiDroidApp.getCollectionPath();
    File f = new File(colFile);
    f.renameTo(new File(colPath));
    int addedCount = -1;
    try {
        col = AnkiDroidApp.openCollection(colPath);

        // because users don't have a backup of media, it's safer to import new
        // data and rely on them running a media db check to get rid of any
        // unwanted media. in the future we might also want to duplicate this step
        // import media
        HashMap<String, String> nameToNum = new HashMap<String, String>();
        HashMap<String, String> numToName = new HashMap<String, String>();
        File mediaMapFile = new File(fileDir, "media");
        if (mediaMapFile.exists()) {
            JsonReader jr = new JsonReader(new FileReader(mediaMapFile));
            jr.beginObject();
            String name;
            String num;
            while (jr.hasNext()) {
                num = jr.nextName();
                name = jr.nextString();
                nameToNum.put(name, num);
                numToName.put(num, name);
            }
            jr.endObject();
            jr.close();
        }
        String mediaDir = col.getMedia().getDir();
        int total = nameToNum.size();
        int i = 0;
        for (Map.Entry<String, String> entry : nameToNum.entrySet()) {
            String file = entry.getKey();
            String c = entry.getValue();
            File of = new File(mediaDir, file);
            if (!of.exists()) {
                Utils.unzipFiles(zip, mediaDir, new String[] { c }, numToName);
            }
            ++i;
            publishProgress(new TaskData(res.getString(R.string.import_media_count, (i + 1) * 100 / total)));
        }
        zip.close();
        // delete tmp dir
        BackupManager.removeDir(dir);

        publishProgress(new TaskData(res.getString(R.string.import_update_counts)));
        // Update the counts
        DeckTask.TaskData result = doInBackgroundLoadDeckCounts(new TaskData(col));
        if (result == null) {
            return null;
        }
        return new TaskData(addedCount, result.getObjArray(), true);
    } catch (RuntimeException e) {
        Log.e(AnkiDroidApp.TAG, "doInBackgroundImportReplace - RuntimeException: ", e);
        AnkiDroidApp.saveExceptionReportFile(e, "doInBackgroundImportReplace1");
        return new TaskData(false);
    } catch (FileNotFoundException e) {
        Log.e(AnkiDroidApp.TAG, "doInBackgroundImportReplace - FileNotFoundException: ", e);
        AnkiDroidApp.saveExceptionReportFile(e, "doInBackgroundImportReplace2");
        return new TaskData(false);
    } catch (IOException e) {
        Log.e(AnkiDroidApp.TAG, "doInBackgroundImportReplace - IOException: ", e);
        AnkiDroidApp.saveExceptionReportFile(e, "doInBackgroundImportReplace3");
        return new TaskData(false);
    }
}

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