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:illarion.client.util.translation.mymemory.MyMemoryProvider.java

License:Open Source License

@Nullable
@Override//from  w  w  w .j av a 2s  .  c  o m
public String getTranslation(@Nonnull String original, @Nonnull TranslationDirection direction) {
    StringBuilder queryBuilder = new StringBuilder();
    queryBuilder.append(serviceUrl).append('?');
    try {
        queryBuilder.append("q=").append(URLEncoder.encode(original, "UTF-8"));
        queryBuilder.append('&').append("langpair=").append(getLangPair(direction));
        queryBuilder.append('&').append("of=json");
        queryBuilder.append('&').append("de=").append(URLEncoder.encode("webmaster@illarion.org", "UTF-8"));

        URL queryUrl = new URL(queryBuilder.toString());
        try (JsonReader rd = new JsonReader(
                new InputStreamReader(queryUrl.openStream(), Charset.forName("UTF-8")))) {
            Gson gson = new GsonBuilder().setDateFormat("yyyy-MM-dd HH:mm:ss").create();
            Response response = gson.fromJson(rd, Response.class);
            if ((response != null) && (response.getResponseData() != null)
                    && (response.getResponseData().getMatch() > 0.75)) {
                return response.getResponseData().getTranslatedText();
            }
        } catch (IOException e) {
            log.error("Error while reading from the service.", e);
        } catch (JsonParseException e) {
            log.error("Unexpected error while decoding json", e);
        }
    } catch (UnsupportedEncodingException e) {
        log.error("Error while encoding the text for transfer to the MyMemory provider.", e);
    } catch (MalformedURLException e) {
        log.error("Generated URL for the query to MyMemory appears to have a invalid format.", e);
    }

    // The provider is not working anymore. That either happens because the provider is unreachable or because
    // the provider is not accepting any more requests. Either way to reduce overhead the provider may shut down for
    // this session to reduce the overhead.
    operational = false;
    return null;
}

---

From source file:illarion.client.util.translation.yandex.YandexProvider.java

License:Open Source License

@Nullable
@Override//from  ww  w  . j  a  v a 2s .com
public String getTranslation(@Nonnull String original, @Nonnull TranslationDirection direction) {
    if (!isProviderWorking()) {
        return null;
    }

    StringBuilder queryBuilder = new StringBuilder();
    queryBuilder.append(serviceUrl).append('?');
    try {
        queryBuilder.append("text=").append(URLEncoder.encode(original, "UTF-8"));
        queryBuilder.append('&').append("lang=").append(getLang(direction));
        queryBuilder.append("&srv=tr-text");

        URL queryUrl = new URL(queryBuilder.toString());
        URLConnection connection = queryUrl.openConnection();
        connection.addRequestProperty("User-Agent", userAgent);
        try (JsonReader rd = new JsonReader(
                new InputStreamReader(connection.getInputStream(), Charset.forName("UTF-8")))) {
            Gson gson = new GsonBuilder().setDateFormat("yyyy-MM-dd HH:mm:ss").create();
            Response response = gson.fromJson(rd, Response.class);
            if (response != null) {
                List<String> result = response.getTexts();
                if (result.size() == 1) {
                    return result.get(0);
                } else if (result.size() > 1) {
                    StringBuilder resultBuilder = new StringBuilder();
                    for (String text : result) {
                        resultBuilder.append(text).append(' ');
                    }
                    return resultBuilder.toString().trim();
                }
            }
        } catch (IOException e) {
            log.error("Error while reading from the service.", e);
        } catch (JsonParseException e) {
            log.error("Unexpected error while decoding json", e);
        }
    } catch (UnsupportedEncodingException e) {
        log.error("Error while encoding the text for transfer to the Yandex provider.", e);
    } catch (MalformedURLException e) {
        log.error("Generated URL for the query to Yandex appears to have a invalid format.", e);
    } catch (IOException e) {
        log.error("Failed to open connection for Yandex provider.", e);
    }

    // The provider is not working anymore. That either happens because the provider is unreachable or because
    // the provider is not accepting any more requests. Either way to reduce overhead the provider may shut down for
    // this session to reduce the overhead.
    operational = false;
    return null;
}

---

From source file:imapi.OnlineDatabaseActions.java

License:Apache License

private int readJsonUriVals(InputStream inputStream, Vector<String> uriVals) {

    try {/*from   w  w  w .  jav  a  2 s  . c o  m*/

        JsonReader rdr = new JsonReader(new InputStreamReader(inputStream));
        JsonParser parser = new JsonParser();
        JsonElement jElement = parser.parse(rdr);

        if (jElement.isJsonObject() == false) {
            showContentsOfInputStream(inputStream);
            return ApiConstants.IMAPIFailCode;
        }

        // read head/vars from json in order to get the names of the
        // select clause in the order that they were declared.
        // Store in headVarNames vector
        Vector<String> headVarNames = new Vector<String>();

        JsonObject jRootObject = jElement.getAsJsonObject();
        JsonArray jHeadVarsArray = jRootObject.get("head").getAsJsonObject().get("vars").getAsJsonArray();

        Iterator<JsonElement> jVarsIter = jHeadVarsArray.iterator();
        while (jVarsIter.hasNext()) {
            JsonElement jVarElement = jVarsIter.next();
            if (jVarElement.isJsonPrimitive()) {
                headVarNames.add(jVarElement.getAsString());
            }
        }

        if (jRootObject.has("results") == false
                || jRootObject.get("results").getAsJsonObject().has("bindings") == false) {
            return ApiConstants.IMAPIFailCode;
        }

        // loop over all json bindings
        JsonArray jBindingsArray = jRootObject.get("results").getAsJsonObject().get("bindings")
                .getAsJsonArray();
        Iterator<JsonElement> jBindingsIter = jBindingsArray.iterator();
        while (jBindingsIter.hasNext()) {

            // of the binding
            String uri = "";

            JsonElement jBindingElement = jBindingsIter.next();
            if (jBindingElement.isJsonObject() == false) {
                continue;
            }
            JsonObject jBindingObject = jBindingElement.getAsJsonObject();

            for (int k = 0; k < headVarNames.size(); k++) {

                String currentPropertyName = headVarNames.get(k);
                if (jBindingObject.has(currentPropertyName)) {

                    JsonObject jObj = jBindingObject.get(currentPropertyName).getAsJsonObject();

                    String valStr = "";
                    if (jObj.has("value")) {
                        valStr = jObj.get("value").getAsString();
                    }

                    if (k == 0) {
                        uri = valStr;
                    }
                }
            }

            if (uri.length() > 0 && uriVals.contains(uri) == false) {
                uriVals.add(uri);
            }

            // end of asking for all predicates of select clause head/vars names 
        } // edn of while llop that iters across all bindings

    } catch (Exception ex) {
        Utilities.handleException(ex);
        return ApiConstants.IMAPIFailCode;
    }

    return ApiConstants.IMAPISuccessCode;
}

---

From source file:imapi.OnlineDatabaseActions.java

License:Apache License

private int readJsonStartingUriAndValuePairs(InputStream inputStream, String startingUriName, String valueName,
        boolean checkForLang, Vector<DataRecord[]> returnVals) {

    try {/*from www .jav a 2s .  co  m*/

        JsonReader rdr = new JsonReader(new InputStreamReader(inputStream));
        JsonParser parser = new JsonParser();
        JsonElement jElement = parser.parse(rdr);

        if (jElement.isJsonObject() == false) {
            showContentsOfInputStream(inputStream);
            return ApiConstants.IMAPIFailCode;
        }

        // read head/vars from json in order to get the names of the
        // select clause in the order that they were declared.
        // Store in headVarNames vector
        Vector<String> headVarNames = new Vector<String>();

        JsonObject jRootObject = jElement.getAsJsonObject();
        JsonArray jHeadVarsArray = jRootObject.get("head").getAsJsonObject().get("vars").getAsJsonArray();

        Iterator<JsonElement> jVarsIter = jHeadVarsArray.iterator();
        while (jVarsIter.hasNext()) {
            JsonElement jVarElement = jVarsIter.next();
            if (jVarElement.isJsonPrimitive()) {
                headVarNames.add(jVarElement.getAsString());
            }
        }

        if (jRootObject.has("results") == false
                || jRootObject.get("results").getAsJsonObject().has("bindings") == false) {
            return ApiConstants.IMAPIFailCode;
        }

        // loop over all json bindings
        JsonArray jBindingsArray = jRootObject.get("results").getAsJsonObject().get("bindings")
                .getAsJsonArray();
        Iterator<JsonElement> jBindingsIter = jBindingsArray.iterator();
        while (jBindingsIter.hasNext()) {

            // of the binding
            DataRecord start = null;
            DataRecord end = null;

            JsonElement jBindingElement = jBindingsIter.next();
            if (jBindingElement.isJsonObject() == false) {
                continue;
            }
            JsonObject jBindingObject = jBindingElement.getAsJsonObject();

            for (int k = 0; k < headVarNames.size(); k++) {

                String currentPropertyName = headVarNames.get(k);
                if (jBindingObject.has(currentPropertyName)) {

                    JsonObject jObj = jBindingObject.get(currentPropertyName).getAsJsonObject();

                    String valStr = "";

                    String langStr = "";
                    if (jObj.has("value")) {
                        valStr = jObj.get("value").getAsString();
                    }

                    if (checkForLang) {
                        //read lang if type is literal
                        if (jObj.has("xml:lang")) {
                            langStr = jObj.get("xml:lang").getAsString();
                        }
                    }

                    if (valStr == null || valStr.trim().length() == 0) {
                        continue;
                    }

                    if (currentPropertyName.equals(startingUriName)) {
                        start = new DataRecord(valStr, "");
                    }

                    if (currentPropertyName.equals(valueName)) {
                        end = new DataRecord(valStr, langStr);
                    }
                }
            }
            if (start != null && end != null) {
                DataRecord[] newVal = { start, end };
                returnVals.add(newVal);
            }

            // end of asking for all predicates of select clause head/vars names 
        } // edn of while llop that iters across all bindings

    } catch (Exception ex) {
        Utilities.handleException(ex);
        return ApiConstants.IMAPIFailCode;
    }

    return ApiConstants.IMAPISuccessCode;
}

---

From source file:Implement.DAO.CommonDAOImpl.java

@Override
public boolean insertNewLanguage() {
    String language = "JSON String";
    Gson gson = new Gson();
    JsonReader reader = new JsonReader(new StringReader(language));
    reader.setLenient(true);//w ww  .j  ava 2s . com
    JsonObject myobject = gson.fromJson(reader, JsonObject.class);
    int flag = 0;
    for (Map.Entry<String, JsonElement> entry : myobject.entrySet()) {
        String name = entry.getValue().getAsJsonObject().get("name").toString();
        if (!name.equals(
                "\"Old Church Slavonic, Church Slavic, Church Slavonic, Old Bulgarian, Old Slavonic\"")) {
            String sql = "INSERT INTO Language" + " VALUES (?)";
            jdbcTemplate.update(sql, name.replaceAll("\"", ""));
        }
    }
    return true;
}

---

From source file:info.hieule.framework.laravel.github.GithubTagBase.java

License:Open Source License

private void init() {
    isNetworkError = false;/* w  w w . jav  a  2 s .co  m*/
    tags = new ArrayList<GithubTag>();
    try {
        // JSON -> Object
        Gson gson = new Gson();
        URL tagsJson = new URL(getUrl());
        BufferedReader reader = new BufferedReader(new InputStreamReader(tagsJson.openStream(), "UTF-8"));
        try {
            JsonReader jsonReader = new JsonReader(reader);
            Type type = new TypeToken<ArrayList<GithubTag>>() {
            }.getType();
            tags = gson.fromJson(jsonReader, type);
        } finally {
            reader.close();
        }
    } catch (MalformedURLException ex) {
        Exceptions.printStackTrace(ex);
    } catch (UnsupportedEncodingException ex) {
        Exceptions.printStackTrace(ex);
    } catch (IOException ex) {
        isNetworkError = true;
    }

    names = new ArrayList<String>(tags.size());
    if (isNetworkError) {
        return;
    }

    Filter filter = getFilter();
    if (filter == null) {
        filter = new DefaultFilter();
    }
    for (GithubTag tag : tags) {
        String name = tag.getName();
        if (filter.accept(name)) {
            names.add(name);
        }
    }
}

---

From source file:io.bouquet.v4.GsonFactory.java

License:Apache License

/**
 * Deserialize the given JSON string to Java object.
 *
 * @param            <T> Type/* w ww  .  ja  v a2s . co  m*/
 * @param body       The JSON string
 * @param returnType The type to deserialize inot
 * @return The deserialized Java object
 */
@SuppressWarnings("unchecked")
public <T> T deserialize(String body, Type returnType) throws ApiException {
    try {
        if (getClient().isLenientOnJson()) {
            JsonReader jsonReader = new JsonReader(new StringReader(body));
            // see
            // https://google-gson.googlecode.com/svn/trunk/gson/docs/javadocs/com/google/gson/stream/JsonReader.html#setLenient(boolean)
            jsonReader.setLenient(true);
            return gson.fromJson(jsonReader, returnType);
        } else {
            return gson.fromJson(body, returnType);
        }
    } catch (JsonParseException e) {
        // Fallback processing when failed to parse JSON form response body:
        // return the response body string directly for the String return
        // type;
        // parse response body into date or datetime for the Date return
        // type.
        if (returnType.equals(String.class))
            return (T) body;
        else if (returnType.equals(Date.class))
            return (T) getClient().parseDateOrDatetime(body);
        else
            throw (e);
    } catch (Exception e) {
        throw e;
    }
}

---

From source file:io.cloudex.framework.config.Job.java

License:Apache License

/**
 * De-serialize a job instance from a json file.
 * @param jsonFile - a file path//from   w w w . j ava 2 s. c  om
 * @return a Job instance
 * @throws FileNotFoundException if the file is not found
 * @throws IOException if the json conversion fails
 */
public static Job fromJsonFile(String jsonFile) throws FileNotFoundException, IOException {
    try (FileReader reader = new FileReader(jsonFile)) {
        return ObjectUtils.GSON.fromJson(new JsonReader(reader), Job.class);
    }
}

---

From source file:io.cloudex.framework.utils.FileUtils.java

License:Apache License

/**
 * Convert a json file to set/*from ww w. jav  a  2 s. c  o m*/
 * @param filename
 * @return
 * @throws IOException
 */
public static Set<String> jsonFileToSet(String filename) throws IOException {

    try (FileReader reader = new FileReader(filename)) {

        return GSON.fromJson(new JsonReader(reader), new TypeToken<Set<String>>() {
        }.getType());

    } catch (Exception e) {
        log.error("failed to prase json into set", e);
        throw new IOException(e);
    }
}

---

From source file:io.cloudex.framework.utils.FileUtils.java

License:Apache License

/**
 * Convert a json file to map/* w  ww  .  j av a2 s. c om*/
 * @param filename
 * @return
 * @throws IOException
 */
public static Map<String, Long> jsonFileToMap(String filename) throws IOException {

    try (FileReader reader = new FileReader(filename)) {

        return GSON.fromJson(new JsonReader(reader), new TypeToken<Map<String, Long>>() {
        }.getType());

    } catch (Exception e) {
        log.error("failed to prase json into map", e);
        throw new IOException(e);
    }
}

---

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