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

Introduction

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

Prototype

public void endArray() throws IOException 

Source Link

Document

Consumes the next token from the JSON stream and asserts that it is the end of the current array.

Usage

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

License:Open Source License

/**
 * parse articles from JSON-reader/*from   w  w  w  . j a  va 2  s. co m*/
 *
 * @param articles  container, where parsed articles will be stored
 * @param reader    JSON-reader, containing articles (received from server)
 * @param skipNames set of names (article properties), which should not be processed (may be {@code null})
 * @param filter    filter for articles, defining which articles should be omitted while parsing (may be {@code
 *                  null})
 * @return amount of processed articles
 */
private int parseArticleArray(final Set<Article> articles, JsonReader reader,
        Set<Article.ArticleField> skipNames, IArticleOmitter filter) {
    long time = System.currentTimeMillis();
    int count = 0;

    try {
        reader.beginArray();
        while (reader.hasNext()) {
            Article article = new Article();
            boolean skipObject = false;

            reader.beginObject();
            skipObject = parseArticle(article, reader, skipNames, filter);
            reader.endObject();

            if (!skipObject && article.id != -1 && article.title != null)
                articles.add(article);

            count++;
        }
        reader.endArray();
    } catch (OutOfMemoryError e) {
        Controller.getInstance().lowMemory(true); // Low memory detected
    } catch (Exception e) {
        Log.e(TAG, "Input data could not be read: " + e.getMessage() + " (" + e.getCause() + ")", e);
    }

    Log.d(TAG, String.format("parseArticleArray: parsing %s articles took %s ms", count,
            (System.currentTimeMillis() - time)));
    return count;
}

---

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

License:Open Source License

private Set<Label> parseLabels(final JsonReader reader) throws IOException {
    Set<Label> ret = new HashSet<>();

    if (reader.peek().equals(JsonToken.BEGIN_ARRAY)) {
        reader.beginArray();//from w  w  w .  ja v a  2  s .c o m
    } else {
        reader.skipValue();
        return ret;
    }

    try {
        while (reader.hasNext()) {

            Label label = new Label();
            reader.beginArray();
            try {
                label.id = Integer.parseInt(reader.nextString());
                label.caption = reader.nextString();
                label.foregroundColor = reader.nextString();
                label.backgroundColor = reader.nextString();
                label.checked = true;
            } catch (IllegalArgumentException e) {
                e.printStackTrace();
                reader.skipValue();
                continue;
            }
            ret.add(label);
            reader.endArray();
        }
        reader.endArray();
    } catch (Exception e) {
        // Ignore exceptions here
        try {
            if (reader.peek().equals(JsonToken.END_ARRAY))
                reader.endArray();
        } catch (Exception ee) {
            // Empty!
        }
    }

    return ret;
}

---

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

License:Open Source License

/**
 * Retrieves all categories./*from w ww  . jav a 2 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/*  w  w  w.j a  v a2s . 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.wso2.carbon.governance.rest.api.internal.JSONMessageBodyReader.java

License:Open Source License

/**
 * Traverse through a json array and maps the array elements to a {@link Map}
 *
 * @param reader        {@link JsonReader}
 * @return              map with json array values mapped to key value pairs.
 * @throws IOException  If unable to parse the json array.
 *//*  w w w  .  j  ava 2 s.co m*/
private Map<String, Object> handleArray(JsonReader reader) throws IOException {
    Map<String, Object> values = new HashMap<>();
    reader.beginArray();
    JsonToken token = reader.peek();
    while (token != null) {
        if (token.equals(JsonToken.END_ARRAY)) {
            reader.endArray();
            return values;
        } else {
            handleObject(reader, values, token, true);
        }
        token = reader.peek();
    }
    return values;
}

---

From source file:persistance.JSONHandler.java

public static ArrayList<Colony> loadColonies(String filePath) throws IOException {
    ArrayList<Colony> colonies = new ArrayList<>();

    try (Reader reader = new InputStreamReader(new FileInputStream(filePath))) {
        Gson gson = new GsonBuilder().create();
        JsonReader jsonReader = gson.newJsonReader(reader);

        jsonReader.beginArray();//  ww w . j a  v  a 2  s  . c om
        while (jsonReader.hasNext()) {
            colonies.add(parseColony(jsonReader, colonies));
        }
        jsonReader.endArray();

        return colonies;
    }
}

---

From source file:persistance.JSONHandler.java

private static Colony parseColony(JsonReader jsonReader, ArrayList<Colony> colonies) throws IOException {

    int year = 0;
    Queen queen = null;// w  ww  . j  a  v a2s .c  om
    ArrayList<Bee> bees = new ArrayList<>();
    Colony parentColony = null;

    jsonReader.beginObject();
    while (jsonReader.hasNext()) {
        switch (jsonReader.nextName()) {
        case "year":
            year = jsonReader.nextInt();
            break;
        case "queen":
            queen = parseQueen(jsonReader);
            break;
        case "parentColony":
            parentColony = parseColony(jsonReader, colonies);
            for (Colony colony : colonies) {
                if (colony.equals(parentColony)) {
                    parentColony = colony;
                }
            }

            break;
        case "bees":
            jsonReader.beginArray();
            while (jsonReader.hasNext()) {
                bees.add(parseUnspecifiedBee(jsonReader));
            }
            jsonReader.endArray();
            break;
        default:
            jsonReader.skipValue();
            break;
        }
    }
    jsonReader.endObject();

    Colony colony = new Colony(year, queen, bees);

    if (parentColony != null) {
        colony.setParentColony(parentColony);
        parentColony.addChildColony(colony);
    }

    return colony;
}

---

From source file:pl.nask.hsn2.task.SignatureProcessor.java

License:Open Source License

public final void process(InputStream stream) throws IOException {
    JsonReader reader = new JsonReader(new InputStreamReader(stream));
    reader.beginObject();/*w ww  . j a  v a2s.  co m*/
    while (reader.hasNext()) {
        String name = reader.nextName();
        if ("signatures".equals(name)) {
            reader.beginArray();
            while (reader.hasNext()) {
                Signature<Map<String, Object>> signature = new Gson().fromJson(reader, Signature.class);
                extractData(signature);
            }
            reader.endArray();
        } else {
            reader.skipValue();
        }
    }
    reader.endObject();
}

---

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  w  w .  jav  a 2  s  . c om

    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();
        }
    }
}

---

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

final void loadTransmittedDataKeys(String filePath) throws IOException {
    if (filePath == null) {
        throw new IllegalArgumentException("Cannot load keys from null file");
    }//w w  w. ja  v a2  s .  com

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

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

---

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