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

Introduction

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

Prototype

public boolean hasNext() throws IOException 

Source Link

Document

Returns true if the current array or object has another element.

Usage

From source file:com.miki.webapp.webservicerestful.MikiWsJsonTools.java

/**
 * Cette methode permet de renvoyer un map contenant les attributs(pass en parametre) et leurs valeurs
 * @param urlwebservice url du webservice (faire reference  un renvoie d'un
 * seul objet)/*from   w ww.  j  av  a2s  .c o  m*/
 * @param listeAttribut une liste des attributs a chercher dans le Json
 * @return un Map
 */
public Map<String, String> getObjetLectureJsonFromUrl(String urlwebservice, List<String> listeAttribut) {
    try {
        if (!listeAttribut.isEmpty()) {
            String json = MikiWsTools.get(urlwebservice);
            final JsonReader reader = new JsonReader(new StringReader(json));
            Map<String, String> resultat = new HashMap<>();
            reader.beginObject();
            while (reader.hasNext()) {
                final String name = reader.nextName();
                int iter = 0;
                for (String attribut : listeAttribut) {
                    if (name.equals(attribut)) {
                        if (reader.peek() == JsonToken.NULL) {
                            reader.nextNull();
                            resultat.put(attribut, null);
                        } else {
                            resultat.put(attribut, reader.nextString());
                        }
                    } else {
                        iter++;
                    }
                }
                if (iter == listeAttribut.size()) {
                    reader.skipValue();
                }
            }
            reader.endObject();
            return resultat;
        } else {
            return null;
        }

    } catch (IOException e) {
        e.printStackTrace();
        System.out.println("Echec de l'opration");
        return null;
    }
}

---

From source file:com.miki.webapp.webservicerestful.MikiWsJsonTools.java

/**
 * Cette methode permet de renvoyer un map contenant les attributs(pass en parametre) et leurs valeurs
 * @param json les donnes en format json
 * @param listeAttribut une liste des attributs a chercher dans le Json
 * @return un Map/*from w ww  .j  av a 2 s . c o  m*/
 */
public Map<String, String> getObjetLectureJson(String json, List<String> listeAttribut) {
    try {
        if (!listeAttribut.isEmpty()) {
            final JsonReader reader = new JsonReader(new StringReader(json));
            Map<String, String> resultat = new HashMap<>();
            reader.beginObject();
            while (reader.hasNext()) {
                final String name = reader.nextName();
                int iter = 0;
                for (String attribut : listeAttribut) {
                    if (name.equals(attribut)) {
                        if (reader.peek() == JsonToken.NULL) {
                            reader.nextNull();
                            resultat.put(attribut, null);
                        } else {
                            resultat.put(attribut, reader.nextString());
                        }
                    } else {
                        iter++;
                    }
                }
                if (iter == listeAttribut.size()) {
                    reader.skipValue();
                }
            }
            reader.endObject();
            return resultat;
        } else {
            return null;
        }

    } catch (IOException e) {
        e.printStackTrace();
        System.out.println("Echec de l'opration");
        return null;
    }
}

---

From source file:com.netease.flume.taildirSource.ReliableTaildirEventReader.java

License:Apache License

/**
 * Load a position file which has the last read position of each file. If the position file exists, update tailFiles
 * mapping./* w ww  .  ja v a 2 s  .  c  o  m*/
 */
public void loadPositionFile(String filePath) {
    Long inode, pos;
    String path;
    FileReader fr = null;
    JsonReader jr = null;
    try {
        fr = new FileReader(filePath);
        jr = new JsonReader(fr);
        jr.beginArray();
        while (jr.hasNext()) {
            inode = null;
            pos = null;
            path = null;
            jr.beginObject();
            while (jr.hasNext()) {
                switch (jr.nextName()) {
                case "inode":
                    inode = jr.nextLong();
                    break;
                case "pos":
                    pos = jr.nextLong();
                    break;
                case "file":
                    path = jr.nextString();
                    break;
                }
            }
            jr.endObject();

            for (Object v : Arrays.asList(inode, pos, path)) {
                Preconditions.checkNotNull(v, "Detected missing value in position file. " + "inode: " + inode
                        + ", pos: " + pos + ", path: " + path);
            }
            TailFile tf = tailFiles.get(inode);
            if (tf != null && tf.updatePos(path, inode, pos)) {
                tailFiles.put(inode, tf);
            } else {
                logger.info("Missing file: " + path + ", inode: " + inode + ", pos: " + pos);
            }
        }
        jr.endArray();
    } catch (FileNotFoundException e) {
        logger.info("File not found: " + filePath + ", not updating position");
    } catch (IOException e) {
        logger.error("Failed loading positionFile: " + filePath, e);
    } finally {
        try {
            if (fr != null)
                fr.close();
            if (jr != null)
                jr.close();
        } catch (IOException e) {
            logger.error("Error: " + e.getMessage(), e);
        }
    }
}

---

From source file:com.nit.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);/*from  w  w w . j av a2  s .c om*/
    }

    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));
    } 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);
    }
}

---

From source file:com.nit.libanki.importer.Anki2Importer.java

License:Open Source License

public int run(boolean currDeckImport) {
    publishProgress(false, 0, 0, false);
    try {//from   w w w. j  ava  2 s.  co m
        // extract the deck from the zip file
        String tempDir = AnkiDroidApp.getCurrentAnkiDroidDirectory() + "/tmpzip";
        // from anki2.py
        String colFile = tempDir + "/collection.anki2";
        if (!Utils.unzipFiles(mZip, tempDir, new String[] { "collection.anki2", "media" }, null)
                || !(new File(colFile)).exists() || !Storage.Collection(colFile).validCollection()) {
            return -2;
        }

        // we need the media dict in advance, and we'll need a map of fname number to use during the import
        File mediaMapFile = new File(tempDir, "media");
        HashMap<String, String> numToName = new HashMap<String, String>();
        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();
        }

        _prepareFiles(colFile);
        publishProgress(true, 0, 0, false);
        int cnt = -1;
        try {
            cnt = _import(currDeckImport);
        } finally {
            // do not close collection but close only db (in order not to confuse access counting in storage.java
            // Note that the media database is still open and needs to be closed below.
            AnkiDatabaseManager.closeDatabase(mSrc.getPath());
        }
        // import static media
        String mediaDir = mCol.getMedia().getDir();
        if (nameToNum.size() != 0) {
            for (Map.Entry<String, String> entry : nameToNum.entrySet()) {
                String file = entry.getKey();
                String c = entry.getValue();
                if (!file.startsWith("_") && !file.startsWith("latex-")) {
                    continue;
                }
                File of = new File(mediaDir, file);
                if (!of.exists()) {
                    Utils.unzipFiles(mZip, mediaDir, new String[] { c }, numToName);
                }
            }
        }
        mZip.close();
        mSrc.getMedia().close();
        // delete tmp dir
        File dir = new File(tempDir);
        BackupManager.removeDir(dir);
        publishProgress(true, 100, 100, true);
        return cnt;
    } catch (RuntimeException e) {
        Log.e(AnkiDroidApp.TAG, "RuntimeException while importing ", e);
        return -1;
    } catch (IOException e) {
        Log.e(AnkiDroidApp.TAG, "IOException while importing ", e);
        return -1;
    }
}

---

From source file:com.nridge.core.io.gson.DataBagJSON.java

License:Open Source License

/**
 * Parses an JSON stream and loads it into a bag/table.
 *
 * @param aReader Json reader stream instance.
 *
 * @throws java.io.IOException I/O related exception.
 *///from w w  w .j  av a2  s.c om
public void load(JsonReader aReader) throws IOException {
    DataField dataField;
    String jsonName, jsonValue;

    aReader.beginObject();
    while (aReader.hasNext()) {
        jsonName = aReader.nextName();
        if (StringUtils.equals(jsonName, IO.JSON_NAME_MEMBER_NAME))
            mBag.setName(aReader.nextString());
        else if (StringUtils.equals(jsonName, IO.JSON_TITLE_MEMBER_NAME))
            mBag.setTitle(aReader.nextString());
        else if (StringUtils.equals(jsonName, IO.JSON_FEATURES_ARRAY_NAME)) {
            aReader.beginObject();
            while (aReader.hasNext()) {
                jsonName = aReader.nextName();
                jsonValue = aReader.nextString();
                mBag.addFeature(jsonName, jsonValue);
            }
            aReader.endObject();
        } else if (StringUtils.equals(jsonName, IO.JSON_FIELDS_ARRAY_NAME)) {
            aReader.beginArray();
            while (aReader.hasNext()) {
                dataField = mDataFieldJSON.load(aReader);
                if (dataField != null)
                    mBag.add(dataField);
            }
            aReader.endArray();
        } else
            aReader.skipValue();
    }

    aReader.endObject();
}

---

From source file:com.nridge.core.io.gson.DataFieldJSON.java

License:Open Source License

private void assignFieldNameValue(DataField aField, String aName, JsonReader aReader) throws IOException {
    if (StringUtils.equals(aName, IO.JSON_TITLE_MEMBER_NAME))
        aField.setTitle(aReader.nextString());
    else if (StringUtils.equals(aName, "displaySize"))
        aField.setDisplaySize(aReader.nextInt());
    else if (StringUtils.equals(aName, "defaultValue"))
        aField.setDefaultValue(aReader.nextString());
    else if (StringUtils.equals(aName, "sortOrder"))
        aField.setSortOrder(Field.Order.valueOf(aReader.nextString()));
    else if (StringUtils.equals(aName, "isMultiValue"))
        aField.setMultiValueFlag(aReader.nextBoolean());
    else if (StringUtils.equals(aName, IO.JSON_RANGE_OBJECT_NAME))
        aField.setRange(mRangeJSON.load(aReader));
    else if (StringUtils.equals(aName, IO.JSON_FEATURES_ARRAY_NAME)) {
        String jsonName, jsonValue;

        aReader.beginObject();//from www.  jav  a2 s . com
        while (aReader.hasNext()) {
            jsonName = aReader.nextName();
            jsonValue = aReader.nextString();
            aField.addFeature(jsonName, jsonValue);
        }
        aReader.endObject();
    } else if (StringUtils.equals(aName, IO.JSON_VALUE_MEMBER_NAME)) {
        String jsonValue = aReader.nextString();
        if (aField.isMultiValue()) {
            String mvDelimiter = aField.getFeature(Field.FEATURE_MV_DELIMITER);
            if (StringUtils.isNotEmpty(mvDelimiter))
                aField.expand(jsonValue, mvDelimiter.charAt(0));
            else
                aField.expand(jsonValue);
        } else
            aField.setValue(jsonValue);
    }
}

---

From source file:com.nridge.core.io.gson.DataFieldJSON.java

License:Open Source License

/**
 * Parses aJSON formatted input reader stream and loads it into a field.
 *
 * @param aReader Input reader stream instance.
 *
 * @return DataField instance.//from   www. j a va2 s  .c  o m
 *
 * @throws java.io.IOException I/O related exception.
 */
public DataField load(JsonReader aReader) throws IOException {
    String jsonName;

    DataField dataField = null;
    String fieldName = StringUtils.EMPTY;
    String fieldType = Field.typeToString(Field.Type.Text);

    aReader.beginObject();
    while (aReader.hasNext()) {
        jsonName = aReader.nextName();
        if (StringUtils.equals(jsonName, IO.JSON_NAME_MEMBER_NAME))
            fieldName = aReader.nextString();
        else if (StringUtils.equals(jsonName, IO.JSON_TYPE_MEMBER_NAME))
            fieldType = aReader.nextString();
        else {
            if (dataField == null) {
                if ((StringUtils.isNotEmpty(fieldName)) && (StringUtils.isNotEmpty(fieldType)))
                    dataField = new DataField(Field.stringToType(fieldType), fieldName);
                else
                    throw new IOException("JSON Parser: Data field is missing name/type field.");
            }
            assignFieldNameValue(dataField, jsonName, aReader);
        }
    }
    aReader.endObject();

    // OK - if we get here and the data field is null, then the JSON lacked a value field.

    if (dataField == null) {
        if ((StringUtils.isNotEmpty(fieldName)) && (StringUtils.isNotEmpty(fieldType)))
            dataField = new DataField(Field.stringToType(fieldType), fieldName);
        else
            throw new IOException("JSON Parser: Data field is missing name/type field.");
    }

    return dataField;
}

---

From source file:com.nridge.core.io.gson.DataTableJSON.java

License:Open Source License

/**
 * Parses an JSON stream and loads it into a bag/table.
 *
 * @param aReader Json reader stream instance.
 *
 * @throws java.io.IOException I/O related exception.
 *///from   w  w  w  .j a v a2s  .  co  m
public void load(JsonReader aReader) throws IOException {
    int columnOffset;
    FieldRow fieldRow;
    DataField dataField;
    String jsonName, jsonValue, mvDelimiter;

    resetContext();
    aReader.beginObject();
    while (aReader.hasNext()) {
        jsonName = aReader.nextName();
        if (StringUtils.equals(jsonName, IO.JSON_NAME_MEMBER_NAME))
            mDataTable.setName(aReader.nextString());
        else if (StringUtils.equals(jsonName, IO.JSON_CONTEXT_OBJECT_NAME)) {
            aReader.beginObject();
            while (aReader.hasNext()) {
                jsonName = aReader.nextName();
                if (StringUtils.equals(jsonName, IO.JSON_START_MEMBER_NAME))
                    mContextStart = aReader.nextInt();
                else if (StringUtils.equals(jsonName, IO.JSON_LIMIT_MEMBER_NAME))
                    mContextLimit = aReader.nextInt();
                else if (StringUtils.equals(jsonName, IO.JSON_TOTAL_MEMBER_NAME))
                    mContextTotal = aReader.nextInt();
                else
                    aReader.skipValue();
            }
            aReader.endObject();
        } else if (StringUtils.equals(jsonName, IO.JSON_BAG_OBJECT_NAME)) {
            DataBagJSON dataBagJSON = new DataBagJSON();
            dataBagJSON.load(aReader);
            mDataTable.setColumns(dataBagJSON.getBag());
        } else if (StringUtils.equals(jsonName, IO.JSON_ROWS_ARRAY_NAME)) {
            aReader.beginArray();
            while (aReader.hasNext()) {
                columnOffset = 0;
                fieldRow = mDataTable.newRow();

                aReader.beginObject();
                while (aReader.hasNext()) {
                    jsonName = aReader.nextName();
                    if (StringUtils.equals(jsonName, IO.JSON_CELL_MEMBER_NAME)) {
                        jsonValue = aReader.nextString();
                        dataField = mDataTable.getColumn(columnOffset);
                        if (dataField != null) {
                            if (dataField.isMultiValue()) {
                                mvDelimiter = dataField.getFeature(Field.FEATURE_MV_DELIMITER);
                                if (StringUtils.isNotEmpty(mvDelimiter))
                                    fieldRow.setValues(columnOffset,
                                            StrUtl.expandToList(jsonValue, mvDelimiter.charAt(0)));
                                else
                                    fieldRow.setValues(columnOffset,
                                            StrUtl.expandToList(jsonValue, StrUtl.CHAR_PIPE));
                            } else
                                fieldRow.setValue(columnOffset, jsonValue);
                            columnOffset++;
                        }
                    } else
                        aReader.skipValue();
                }
                aReader.endObject();

                mDataTable.addRow(fieldRow);

            }
            aReader.endArray();
        } else
            aReader.skipValue();
    }
    aReader.endObject();
}

---

From source file:com.nridge.core.io.gson.DocumentJSON.java

License:Open Source License

private void loadACL(JsonReader aReader, Document aDocument) throws IOException {
    String jsonName, aceName, aceValue;

    HashMap<String, String> docACL = aDocument.getACL();
    aReader.beginArray();/*from  ww  w.j a  va2 s  .  c o  m*/
    while (aReader.hasNext()) {
        aceName = StringUtils.EMPTY;

        aReader.beginObject();
        while (aReader.hasNext()) {
            jsonName = aReader.nextName();
            if (StringUtils.equals(jsonName, IO.JSON_NAME_MEMBER_NAME))
                aceName = aReader.nextString();
            else if (StringUtils.equals(jsonName, IO.JSON_VALUE_MEMBER_NAME)) {
                aceValue = aReader.nextString();
                if (StringUtils.isNotEmpty(aceName))
                    docACL.put(aceName, aceValue);
            } else
                aReader.skipValue();
        }
        aReader.endObject();
    }
    aReader.endArray();
}

---

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