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

Introduction

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

Prototype

public void close() throws IOException 

Source Link

Document

Closes this JSON reader and the underlying java.io.Reader .

Usage

From source file:org.terasology.rendering.gui.components.UITextWrap.java

License:Apache License

public int getLineCount() throws IOException {
    Gson gson = new Gson();
    JsonReader reader = new JsonReader(new FileReader(".\\data\\console\\consolelog.json"));
    int counter = 0;
    reader.beginArray();/*from  ww w .j a v  a2  s . com*/
    while (reader.hasNext()) {
        counter++;
        gson.fromJson(reader, String.class);
    }
    reader.endArray();
    reader.close();
    return counter;
}

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From source file:org.ttrssreader.net.JSONConnector.java

License:Open Source License

private String readResult(Map<String, String> params, boolean login, boolean retry) throws IOException {
    InputStream in = doRequest(params);
    if (in == null)
        return null;

    JsonReader reader = null;
    String ret = "";
    try {//from ww  w  .j  a v a 2s. c o m
        reader = new JsonReader(new InputStreamReader(in, "UTF-8"));
        // Check if content contains array or object, array indicates login-response or error, object is content

        reader.beginObject();
        while (reader.hasNext()) {
            String name = reader.nextName();
            if (!name.equals("content")) {
                reader.skipValue();
                continue;
            }

            JsonToken t = reader.peek();
            if (!t.equals(JsonToken.BEGIN_OBJECT))
                continue;

            JsonObject object = new JsonObject();
            reader.beginObject();
            while (reader.hasNext()) {
                object.addProperty(reader.nextName(), reader.nextString());
            }
            reader.endObject();

            if (object.get(SESSION_ID) != null) {
                ret = object.get(SESSION_ID).getAsString();
            }
            if (object.get(STATUS) != null) {
                ret = object.get(STATUS).getAsString();
            }
            if (this.apiLevel == -1 && object.get(API_LEVEL) != null) {
                this.apiLevel = object.get(API_LEVEL).getAsInt();
            }
            if (object.get(VALUE) != null) {
                ret = object.get(VALUE).getAsString();
            }
            if (object.get(ERROR) != null) {
                String message = object.get(ERROR).getAsString();
                Context ctx = MyApplication.context();

                switch (message) {
                case API_DISABLED:
                    lastError = ctx.getString(R.string.Error_ApiDisabled, Controller.getInstance().username());
                    break;
                case NOT_LOGGED_IN:
                case LOGIN_ERROR:
                    if (!login && retry && login())
                        return readResult(params, false, false); // Just do the same request again
                    else
                        lastError = ctx.getString(R.string.Error_LoginFailed);
                    break;
                case INCORRECT_USAGE:
                    lastError = ctx.getString(R.string.Error_ApiIncorrectUsage);
                    break;
                case UNKNOWN_METHOD:
                    lastError = ctx.getString(R.string.Error_ApiUnknownMethod);
                    break;
                default:
                    lastError = ctx.getString(R.string.Error_ApiUnknownError);
                    break;
                }

                hasLastError = true;
                Log.e(TAG, message);
                return null;
            }

        }
    } finally {
        if (reader != null)
            reader.close();
    }
    if (ret.startsWith("\""))
        ret = ret.substring(1, ret.length());
    if (ret.endsWith("\""))
        ret = ret.substring(0, ret.length() - 1);

    return ret;
}

---

From source file:org.ttrssreader.net.JSONConnector.java

License:Open Source License

/**
 * Retrieves all categories.//  w  ww.  j a  va2  s  .c  o m
 *
 * @return a list of categories.
 */
public Set<Category> getCategories() {
    long time = System.currentTimeMillis();
    Set<Category> ret = new LinkedHashSet<>();
    if (sessionNotAlive())
        return ret;

    Map<String, String> params = new HashMap<>();
    params.put(PARAM_OP, VALUE_GET_CATEGORIES);

    JsonReader reader = null;
    try {
        reader = prepareReader(params);

        if (reader == null)
            return ret;

        reader.beginArray();
        while (reader.hasNext()) {

            int id = -1;
            String title = null;
            int unread = 0;

            reader.beginObject();
            while (reader.hasNext()) {

                try {
                    switch (reader.nextName()) {
                    case ID:
                        id = reader.nextInt();
                        break;
                    case TITLE:
                        title = reader.nextString();
                        break;
                    case UNREAD:
                        unread = reader.nextInt();
                        break;
                    default:
                        reader.skipValue();
                        break;
                    }
                } catch (IllegalArgumentException e) {
                    e.printStackTrace();
                    reader.skipValue();
                }

            }
            reader.endObject();

            // Don't handle categories with an id below 1, we already have them in the DB from
            // Data.updateVirtualCategories()
            if (id > 0 && title != null)
                ret.add(new Category(id, title, unread));
        }
        reader.endArray();
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        if (reader != null)
            try {
                reader.close();
            } catch (IOException e1) {
                // Empty!
            }
    }

    Log.d(TAG, "getCategories: " + (System.currentTimeMillis() - time) + "ms");
    return ret;
}

---

From source file:org.ttrssreader.net.JSONConnector.java

License:Open Source License

/**
 * get current feeds from server/*from   w  w w .  j av  a  2 s. c  o m*/
 *
 * @param tolerateWrongUnreadInformation if set to {@code false}, then
 *                                       lazy server will be updated before
 * @return set of actual feeds on server
 */
private Set<Feed> getFeeds(boolean tolerateWrongUnreadInformation) {
    long time = System.currentTimeMillis();
    Set<Feed> ret = new LinkedHashSet<>();
    if (sessionNotAlive())
        return ret;

    if (!tolerateWrongUnreadInformation) {
        makeLazyServerWork();
    }

    Map<String, String> params = new HashMap<>();
    params.put(PARAM_OP, VALUE_GET_FEEDS);
    params.put(PARAM_CAT_ID, Data.VCAT_ALL + ""); // Hardcoded -4 fetches all feeds. See
    // http://tt-rss.org/redmine/wiki/tt-rss/JsonApiReference#getFeeds

    JsonReader reader = null;
    try {
        reader = prepareReader(params);

        if (reader == null)
            return ret;

        reader.beginArray();
        while (reader.hasNext()) {

            int categoryId = -1;
            int id = 0;
            String title = null;
            String feedUrl = null;
            int unread = 0;

            reader.beginObject();
            while (reader.hasNext()) {

                try {
                    switch (reader.nextName()) {
                    case ID:
                        id = reader.nextInt();
                        break;
                    case CAT_ID:
                        categoryId = reader.nextInt();
                        break;
                    case TITLE:
                        title = reader.nextString();
                        break;
                    case FEED_URL:
                        feedUrl = reader.nextString();
                        break;
                    case UNREAD:
                        unread = reader.nextInt();
                        break;
                    default:
                        reader.skipValue();
                        break;
                    }
                } catch (IllegalArgumentException e) {
                    e.printStackTrace();
                    reader.skipValue();
                }

            }
            reader.endObject();

            if (id != -1 || categoryId == -2) // normal feed (>0) or label (-2)
                if (title != null) // Dont like complicated if-statements..
                    ret.add(new Feed(id, categoryId, title, feedUrl, unread));

        }
        reader.endArray();
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        if (reader != null)
            try {
                reader.close();
            } catch (IOException e1) {
                // Empty!
            }
    }

    Log.d(TAG, "getFeeds: " + (System.currentTimeMillis() - time) + "ms");
    return ret;
}

---

From source file:org.ttrssreader.net.JSONConnector.java

License:Open Source License

/**
 * Retrieves the specified articles./*from  ww  w.j a va  2s  . co m*/
 *
 * @param articles       container for retrieved articles
 * @param id             the id of the feed/category
 * @param limit          the maximum number of articles to be fetched
 * @param viewMode       indicates wether only unread articles should be included (Possible values: all_articles,
 *                       unread,
 *                       adaptive, marked, updated)
 * @param isCategory     indicates if we are dealing with a category or a feed
 * @param sinceId        the first ArticleId which is to be retrieved.
 * @param search         search query
 * @param skipProperties set of article fields, which should not be parsed (may be {@code null})
 * @param filter         filter for articles, defining which articles should be omitted while parsing (may be
 *                       {@code
 *                       null})
 */
public void getHeadlines(final Set<Article> articles, Integer id, int limit, String viewMode,
        boolean isCategory, Integer sinceId, String search, Set<Article.ArticleField> skipProperties,
        IArticleOmitter filter) {
    long time = System.currentTimeMillis();
    int offset = 0;
    int count;
    int maxSize = articles.size() + limit;

    if (sessionNotAlive())
        return;

    int limitParam = Math.min((apiLevel < 6) ? PARAM_LIMIT_API_5 : PARAM_LIMIT_MAX_VALUE, limit);

    makeLazyServerWork(id);

    while (articles.size() < maxSize) {

        Map<String, String> params = new HashMap<>();
        params.put(PARAM_OP, VALUE_GET_HEADLINES);
        params.put(PARAM_FEED_ID, id + "");
        params.put(PARAM_LIMIT, limitParam + "");
        params.put(PARAM_SKIP, offset + "");
        params.put(PARAM_VIEWMODE, viewMode);
        params.put(PARAM_IS_CAT, (isCategory ? "1" : "0"));
        if (skipProperties == null || !skipProperties.contains(Article.ArticleField.content))
            params.put(PARAM_SHOW_CONTENT, "1");
        if (skipProperties == null || !skipProperties.contains(Article.ArticleField.attachments))
            params.put(PARAM_INC_ATTACHMENTS, "1");
        if (sinceId > 0)
            params.put(PARAM_SINCE_ID, sinceId + "");
        if (search != null)
            params.put(PARAM_SEARCH, search);

        JsonReader reader = null;
        try {
            reader = prepareReader(params);

            if (hasLastError)
                return;
            if (reader == null)
                continue;

            count = parseArticleArray(articles, reader, skipProperties, filter);

            if (count < limitParam)
                break;
            else
                offset += count;

        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (reader != null) {
                try {
                    reader.close();
                } catch (IOException ignored) {
                    // Empty!
                }
            }
        }
    }

    Log.d(TAG, "getHeadlines: " + (System.currentTimeMillis() - time) + "ms");
}

---

From source file:org.ttrssreader.net.JSONConnector.java

License:Open Source License

public SubscriptionResponse feedSubscribe(String feed_url, int category_id) {
    SubscriptionResponse ret = new SubscriptionResponse();
    if (sessionNotAlive())
        return ret;

    Map<String, String> params = new HashMap<>();
    params.put(PARAM_OP, VALUE_FEED_SUBSCRIBE);
    params.put(PARAM_FEED_URL, feed_url);
    params.put(PARAM_CATEGORY_ID, category_id + "");

    String code = "";
    String message = null;//from   w  w w  .  j a va2  s  . c om
    JsonReader reader = null;
    try {
        reader = prepareReader(params);
        if (reader == null)
            return ret;

        reader.beginObject();
        while (reader.hasNext()) {
            switch (reader.nextName()) {
            case "code":
                code = reader.nextString();
                break;
            case "message":
                message = reader.nextString();
                break;
            default:
                reader.skipValue();
                break;
            }
        }

        if (!code.contains(UNKNOWN_METHOD)) {
            ret.code = Integer.parseInt(code);
            ret.message = message;
        }

    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if (reader != null)
            try {
                reader.close();
            } catch (IOException e1) {
                // Empty!
            }
    }

    return ret;
}

---

From source file:org.unitime.timetable.api.JsonApiHelper.java

License:Apache License

@Override
public <P> P getRequest(Type requestType) throws IOException {
    if (iGson == null)
        iGson = createGson();//from  w ww.j a  va  2  s  .c  o m
    JsonReader reader = new JsonReader(iRequest.getReader());
    try {
        return iGson.fromJson(reader, requestType);
    } finally {
        reader.close();
    }
}

---

From source file:org.unitime.timetable.onlinesectioning.custom.purdue.GsonRepresentation.java

License:Apache License

public T getObject() throws IOException {
    if (iObject == null && iRepresentation != null && iRepresentation.isAvailable()) {
        JsonReader reader = new JsonReader(iRepresentation.getReader());
        try {//from  ww  w .jav a2  s. c  o  m
            if (iObjectType != null)
                return getBuilder().create().fromJson(reader, iObjectType);
            else
                return getBuilder().create().fromJson(reader, iObjectClass);
        } finally {
            reader.close();
            iRepresentation.release();
        }
    }
    return iObject;
}

---

From source file:org.unitime.timetable.onlinesectioning.custom.purdue.XEStudentEnrollment.java

License:Open Source License

protected <T> T readResponse(Gson gson, Response response, Type typeOfT)
        throws JsonIOException, JsonSyntaxException, IOException {
    if (response == null)
        return null;
    JsonReader reader = new JsonReader(response.getEntity().getReader());
    try {/*www . ja  v a 2s  .  c om*/
        return gson.fromJson(reader, typeOfT);
    } finally {
        reader.close();
        response.release();
    }
}

---

From source file:project.latex.balloon.BalloonController.java

static List<String> loadTransmittedDataKeys(String filePath) throws IOException {
    if (filePath == null) {
        throw new IllegalArgumentException("Cannot load keys from null file");
    }/*from w  ww .  ja v  a2  s  .c o m*/

    JsonReader reader = null;
    try {
        List<String> dataKeys = new ArrayList<>();
        reader = new JsonReader(new FileReader(filePath));
        reader.beginObject();
        while (reader.hasNext()) {
            String name = reader.nextName();
            reader.beginArray();
            while (reader.hasNext()) {
                dataKeys.add(reader.nextString());
            }
            reader.endArray();
        }
        reader.endObject();
        reader.close();

        return dataKeys;
    } finally {
        if (reader != null) {
            reader.close();
        }
    }
}

---

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