Examples of org.json.me.JSONObject

org.json.me.JSONObject
A JSONObject is an unordered collection of name/value pairs. Its external form is a string wrapped in curly braces with colons between the names and values, and commas between the values and names. The internal form is an object having get and opt methods for accessing the values by name, and put methods for adding or replacing values by name. The values can be any of these types: Boolean, JSONArray, JSONObject, Number, String, or the JSONObject.NULL object. A JSONObject constructor can be used to convert an external form JSON text into an internal form whose values can be retrieved with the get and opt methods, or to convert values into a JSON text using the put and toString methods. A get method returns a value if one can be found, and throws an exception if one cannot be found. An opt method returns a default value instead of throwing an exception, and so is useful for obtaining optional values.
The generic get() and opt() methods return an object, which you can cast or query for type. There are also typed get and opt methods that do type checking and type coersion for you.
The put methods adds values to an object. For example,
```
 myString = new JSONObject().put("JSON", "Hello, World!").toString();
```
produces the string {"JSON": "Hello, World"}.
The texts produced by the toString methods strictly conform to the JSON sysntax rules. The constructors are more forgiving in the texts they will accept:
- An extra , (comma) may appear just before the closing brace.
- Strings may be quoted with ' (single quote).
- Strings do not need to be quoted at all if they do not begin with a quote or single quote, and if they do not contain leading or trailing spaces, and if they do not contain any of these characters: { } [ ] / \ : , = ; # and if they do not look like numbers and if they are not the reserved words true, false, or null.
- Keys can be followed by = or => as well as by :.
- Values can be followed by ; (semicolon) as well as by , (comma).
- Numbers may have the 0- (octal) or 0x- (hex) prefix.
- Comments written in the slashshlash, slashstar, and hash conventions will be ignored.
@author JSON.org @version 2

            throws JSONException, IOException {
        log("parseMessage(NDEFMessage)");
        String record_type = "?";
        int typeNameFormat = NDEFRecord.TNF_WELL_KNOWN;


        JSONObject result = new JSONObject();
        /*
         * The NDEF Message may consist of a number of NDEF records
         */


        NDEFRecord[] records = _message.getRecords();
        /*
         * This is the number of NDEF records in the NDEF message
         */
        int numRecords = records.length;


        log("Parsing #records=" + numRecords);


        /*
         * Only unpick the message if it contains a non-zero number of records
         */
        JSONArray recordsArray = new JSONArray();
        result.put(Constants.NDEF_RECORDS, recordsArray);


        if (numRecords > 0) {
            /*
             * Work our way through each record in the message in turn
             */
            for (int j = 0; j < numRecords; ++j) {
                log("parseMessage record #" + j);


                NDEFRecord currentRecord = records[j];
                JSONObject jsonRecord = new JSONObject();
                recordsArray.put(jsonRecord);


                log("Processing NDEF record#=" + j);


                typeNameFormat = currentRecord.getTypeNameFormat();
                record_type = records[j].getType();


                if (typeNameFormat == NDEFRecord.TNF_WELL_KNOWN) {
                    if (Constants.NDEF_SMART_POSTER_TYPE.equals(records[j]
                            .getType())) {
                        mergeInto(jsonRecord, parseSmartPoster(records[j]));
                    } else if (Constants.NDEF_TEXT_TYPE.equals(records[j]
                            .getType())) {
                        mergeInto(jsonRecord, parseText(records[j]));
                    } else if (Constants.NDEF_URI_TYPE.equals(records[j]
                            .getType())) {
                        mergeInto(jsonRecord, parseURI(records[j]));
                    } else {
                        // Gc, Hr, Hs, Hc, Sig are not currently parsed by this
                        // implementation...
                    }
                } else if (typeNameFormat == NDEFRecord.TNF_MEDIA) {
                    mergeInto(jsonRecord, parseMediaRecord(records[j]));
                } else if (typeNameFormat == NDEFRecord.TNF_EXTERNAL) {
                    NDEFMessage message = new NDEFMessage(
                            records[j].getPayload());
                    mergeInto(jsonRecord, parseMessage(message));
                }


                if (!jsonRecord.has(Constants.NDEF_PAYLOAD64)) {
                    mergeInto(jsonRecord, parseGenericRecord(records[j]));
                }


                // Put the first record at the top level - to simplify
                // accessing.

View Full Code Here

        synchronized (_messages) {
            message = (NDEFMessage) _messages.elementAt(_messages.size() - 1);
            _messages.removeElementAt(_messages.size() - 1);
        }


        JSONObject toUse;
        try {
            toUse = parseMessage(message);
            try {
                _js_bridge.useNDEFMessage(
                        toUse.getInt(Constants.NDEF_TYPE_NAME_FORMAT),
                        toUse.getString(Constants.NDEF_TYPE), toUse.toString());
            } catch (JSONException j) {
                log("Could not send object back to event handler", j);
            }
        } catch (Exception e) {
            String record_type = "?";

View Full Code Here

    }


    protected JSONObject parseURI(NDEFRecord record) throws JSONException,
            IOException {
        log("parseURL(NDEFRecord)");
        JSONObject toReturn = parseGenericRecord(record);
        byte[] payload = record.getPayload();
        StringBuffer uriBuffer = new StringBuffer();
        uriBuffer.append(URLPrefixes.getPrefix(payload[0] & 0xff));
        uriBuffer.append(new String(payload, 1, payload.length - 1, "UTF-8"));
        toReturn.put(Constants.NDEF_URI, uriBuffer.toString());
        return toReturn;
    }

View Full Code Here

    }


    protected JSONObject parseGenericRecord(NDEFRecord record)
            throws JSONException, IOException {
        log("parseGenericRecord(NDEFRecord)");
        JSONObject toReturn = new JSONObject();
        toReturn.putOpt(Constants.NDEF_ID, record.getId());
        toReturn.putOpt(Constants.NDEF_TYPE, record.getType());
        toReturn.put(Constants.NDEF_TYPE_NAME_FORMAT,
                record.getTypeNameFormat());


        byte[] payloadBytes = record.getPayload();
        JSONArray bytePayload = new JSONArray();


        for (int i = 0; i < payloadBytes.length; i++) {
            byte b = payloadBytes[i];
            bytePayload.put(b & 0xff);
        }


        toReturn.put("payload", bytePayload);
        return toReturn;
    }

View Full Code Here

        if (textLength > 0) {
            text = new String(payload, 1 + languageCodeLength, textLength,
                    isUTF16 ? "UTF-16" : "UTF-8");
        }


        JSONObject toReturn = parseGenericRecord(record);
        toReturn.putOpt(Constants.NDEF_TEXT_LANGUAGE_CODE, languageCode);
        toReturn.putOpt(Constants.NDEF_TEXT_VALUE, text);
        return toReturn;
    }

View Full Code Here

    }


    protected JSONObject parseSmartPoster(NDEFRecord record)
            throws JSONException, IOException {
        log("parseSmartPoster(NDEFRecord)");
        JSONObject toReturn = new JSONObject();
        JSONArray recordsArray = new JSONArray();
        toReturn.put("records", recordsArray);
        // testing


        // if (true)
        // throw new JSONException("Fictitious JSON problem");


        // if(true)
        // throw new
        // UnsupportedEncodingException("Fictitious encoding problem");


        // if(true)
        // throw new BadFormatException("Fictitious format problem");


        // if(true)
        // throw new NFCException("Fictitious NFC problem");


        log("Recognised a Smart Poster Message");
        // try {
        NDEFMessage smartPosterMessage = new NDEFMessage(record.getPayload());
        NDEFRecord[] spRecords = smartPosterMessage.getRecords();
        int numSpRecords = spRecords.length;
        log("Parsing smartposter #records=" + numSpRecords);


        if (numSpRecords > 0) {
            log("Parsing Smart Poster Message");
            for (int k = 0; k < numSpRecords; ++k) {
                log("parseSmartPoster record #" + k);
                JSONObject currentRecordJSON = parseGenericRecord(spRecords[k]);
                recordsArray.put(currentRecordJSON);
                log("Parsing SP record#=" + k);
                byte[] spPayloadBytes = spRecords[k].getPayload();


                int tnf = spRecords[k].getTypeNameFormat();
                String type = spRecords[k].getType();


                log("entering parseSmartPoster if");


                if (tnf == NDEFRecord.TNF_WELL_KNOWN) {
                    if (Constants.NDEF_TEXT_TYPE.equals(type)) {
                        log(Constants.NDEF_TEXT_TYPE);
                        JSONObject text = parseText(spRecords[k]);
                        mergeInto(currentRecordJSON, text);
                        if (text != null) {
                            toReturn.putOpt(Constants.NDEF_TEXT,
                                    text.get(Constants.NDEF_TEXT_VALUE));
                            getOrCreateArray(toReturn,
                                    Constants.NDEF_TEXT_VALUES).put(text);
                        }
                    } else if (Constants.NDEF_URI_TYPE.equals(type)) {
                        log(Constants.NDEF_URI_TYPE);
                        JSONObject uri = parseURI(spRecords[k]);
                        mergeInto(currentRecordJSON, uri);
                        toReturn.put(Constants.NDEF_URI,
                                uri.get(Constants.NDEF_URI));
                        toReturn.put(Constants.NDEF_URI_LEGACY,
                                uri.get(Constants.NDEF_URI));
                    } else if (Constants.NDEF_SMART_POSTER_RECOMMENDED_ACTION_TYPE
                            .equals(type)) {
                        log("Reading an action");
                        if (spPayloadBytes.length != 1) {
                            log("Incorrect length noted for 'action' record: "

View Full Code Here

    }


    protected JSONObject parseMediaRecord(NDEFRecord ndefRecord)
            throws JSONException, IOException {
        log("parseMediaRecord(NDEFRecord)");
        JSONObject toReturn = parseGenericRecord(ndefRecord);
        byte[] payLoad = ndefRecord.getPayload();
        String base64 = Base64OutputStream.encodeAsString(payLoad, 0,
                payLoad.length, false, false);
        toReturn.put(Constants.NDEF_MEDIA_MIME_TYPE, ndefRecord.getType());
        toReturn.put(Constants.NDEF_MEDIA_MIME_BODY, base64);
        toReturn.put(Constants.NDEF_MEDIA_DATA_URI,
                "data:" + ndefRecord.getType() + ";base64," + base64);
        return toReturn;
    }

View Full Code Here

        if(args.length > 0) {
            if (args[0] instanceof String) {
                if (((String)args[0]).indexOf("{")==-1) {
                    record_type = (String) args[0];
                } else {
                    JSONObject params = new JSONObject((String)args[0]);
                    if (params.has(Constants.NDEF_TYPE)) {
                        record_type = params.getString(Constants.NDEF_TYPE);
                    } else {
                        log("Defaulting to Sp (no type in JSON Object)");
                    }
                    if (params.has(Constants.NDEF_TYPE_NAME_FORMAT)) {
                        typeNameFormat = params.getInt(Constants.NDEF_TYPE_NAME_FORMAT);
                    }
                }
            } else {
                log("args[0] is an invalid type of Object");
                return Boolean.FALSE;

View Full Code Here

            if (args[2] instanceof String) {
                if (((String) args[2]).indexOf("{") == -1) {
                    record_type = (String) args[2];
                } else {
                    try {
                        JSONObject params = new JSONObject((String) args[2]);
                        if (params.has(Constants.NDEF_TYPE)) {
                            record_type = params.getString(Constants.NDEF_TYPE);
                        } else {
                            log("Defaulting to Sp (no type in JSONObject)");
                        }
                        if (params.has(Constants.NDEF_TYPE_NAME_FORMAT)) {
                            typeNameFormat = params
                                    .getInt(Constants.NDEF_TYPE_NAME_FORMAT);
                        }
                    } catch (JSONException je) {
                        log("Could not decode param", je);
                        return Boolean.FALSE;

View Full Code Here

    
    private void makeCallback(){
    
      String result = "";
      
      JSONObject j = new JSONObject();
      try {
      j.put("latitude", Double.toString(currSelection.getLat()));
      j.put("longitude", Double.toString(currSelection.getLon()));
      result = j.toString();
    } catch (JSONException e1) {
      // TODO Auto-generated catch block
      e1.printStackTrace();
    }catch (Exception e){

View Full Code Here

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