Examples of org.apache.sling.commons.json.JSONObject

org.apache.sling.commons.json.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

                // SLING-2320: always allow enumeration of one's children;
                // DOS-limitation is for deeper traversals.
                if (count > maxResources && maxRecursionLevels != 1) {
                    return currentLevel;
                }
                final JSONObject json = collectResource(res, jsonObj);
                nextQueue.addLast(new Entry(res, json));
            }
        }


        while (!currentQueue.isEmpty() || !nextQueue.isEmpty()) {

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     * @param level The level where this resource is located.
     * @throws JSONException
     */
    private JSONObject collectResource(Resource resource, final JSONObject parent)
    throws JSONException {
        final JSONObject o = adapt(resource);
        parent.put(ResourceUtil.getName(resource), o);
        return o;
    }

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        @SuppressWarnings("unchecked")
        final Map propertyMap = (valueMap != null)
                ? valueMap
                : resource.adaptTo(Map.class);


        final JSONObject obj = new JSONObject();


        if (propertyMap == null) {


            // no map available, try string
            final String value = resource.adaptTo(String.class);
            if (value != null) {


                // single value property or just plain String resource or...
                obj.put(ResourceUtil.getName(resource), value);


            } else {


                // Try multi-value "property"
                final String[] values = resource.adaptTo(String[].class);
                if (values != null) {
                    obj.put(ResourceUtil.getName(resource), new JSONArray(Arrays.asList(values)));
                }


            }


        } else {

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     */
    public String encodeMessage(String body) throws IOException {
        checkActive();
        if (encryptionEnabled) {
            try {
                JSONObject json = new JSONObject();
                json.put("payload", new JSONArray(encrypt(body)));
                return json.toString();
            } catch (InvalidKeyException e) {
                e.printStackTrace();
                throw new IOException("Unable to Encrypt Message " + e.getMessage());
            } catch (IllegalBlockSizeException e) {
                throw new IOException("Unable to Encrypt Message " + e.getMessage());

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        if (trustEnabled) {
            String bodyHash = hash(prefix + url + ":" + body);
            if (bodyHash.equals(requestHash)) {
                if (encryptionEnabled) {
                    try {
                        JSONObject json = new JSONObject(body);
                        if (json.has("payload")) {
                            return decrypt(json.getJSONArray("payload"));
                        }
                    } catch (JSONException e) {
                        throw new IOException("Encrypted Message is in the correct json format");
                    } catch (InvalidKeyException e) {
                        throw new IOException("Encrypted Message is in the correct json format");

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            if (files != null) {
                while (files.hasMoreElements()) {
                    final InputStream stream = files.nextElement().openStream();
                    final String contents = IOUtils.toString(stream);
                    IOUtils.closeQuietly(stream);
                    final JSONObject obj = new JSONObject(contents);
                    for (final Iterator<String> adaptableNames = obj.keys(); adaptableNames.hasNext();) {
                        final String adaptableName = adaptableNames.next();
                        final JSONObject adaptable = obj.getJSONObject(adaptableName);
                        for (final Iterator<String> conditions = adaptable.keys(); conditions.hasNext();) {
                            final String condition = conditions.next();
                            String[] adapters;
                            final Object value = adaptable.get(condition);
                            if (value instanceof JSONArray) {
                                adapters = toStringArray((JSONArray) value);
                            } else {
                                adapters = new String[] { value.toString() };
                            }

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    }


    private void getJson(final HttpServletResponse resp) throws ServletException, IOException {
        resp.setContentType("application/json");
        try {
            final JSONObject obj = new JSONObject();
            for (final AdaptableDescription desc : allAdaptables) {
                final JSONObject adaptableObj;
                if (obj.has(desc.adaptable)) {
                    adaptableObj = obj.getJSONObject(desc.adaptable);
                } else {
                    adaptableObj = new JSONObject();
                    obj.put(desc.adaptable, adaptableObj);
                }
                for (final String adapter : desc.adapters) {
                    adaptableObj.accumulate(desc.condition == null ? "" : desc.condition, adapter);
                }


            }
            resp.getWriter().println(obj.toString(INDENT));
        } catch (final JSONException e) {

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        return asJSONObject(false);
    }
    
    /** Convert this announcement into a json object **/
    private JSONObject asJSONObject(boolean filterTimes) throws JSONException {
        JSONObject announcement = new JSONObject();
        announcement.put("ownerId", ownerId);
        announcement.put("protocolVersion", protocolVersion);
        // SLING-3389: leaving the 'created' property in the announcement
        // for backwards compatibility!
        if (!filterTimes) {
            announcement.put("created", System.currentTimeMillis());
        }
        announcement.put("inherited", inherited);
        if (loop) {
            announcement.put("loop", loop);
        }
        if (serverInfo != null) {
            announcement.put("serverInfo", serverInfo);
        }
        if (localCluster!=null) {
            announcement.put("localClusterView", asJSON(localCluster));
        }
        if (!filterTimes && backoffInterval>0) {
            announcement.put("backoffInterval", backoffInterval);
        }
        if (resetBackoff) {
            announcement.put("resetBackoff", resetBackoff);
        }
        JSONArray incomingAnnouncements = new JSONArray();
        for (Iterator<Announcement> it = incomings.iterator(); it.hasNext();) {
            Announcement incoming = it.next();
            incomingAnnouncements.put(incoming.asJSONObject(filterTimes));
        }
        announcement.put("topologyAnnouncements", incomingAnnouncements);
        return announcement;
    }

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    }


    /** Create an announcement form json **/
    public static Announcement fromJSON(final String topologyAnnouncementJSON)
            throws JSONException {
        JSONObject announcement = new JSONObject(topologyAnnouncementJSON);
        final String ownerId = announcement.getString("ownerId");
        final int protocolVersion;
        if (!announcement.has("protocolVersion")) {
            protocolVersion = -1;
        } else {
            protocolVersion = announcement.getInt("protocolVersion");
        }
        final Announcement result = new Announcement(ownerId, protocolVersion);
        if (announcement.has("backoffInterval")) {
            long backoffInterval = announcement.getLong("backoffInterval");
            result.backoffInterval = backoffInterval;
        }
        if (announcement.has("resetBackoff")) {
            boolean resetBackoff = announcement.getBoolean("resetBackoff");
            result.resetBackoff = resetBackoff;
        }
        if (announcement.has("loop") && announcement.getBoolean("loop")) {
            result.setLoop(true);
            return result;
        }
        final String localClusterViewJSON = announcement
                .getString("localClusterView");
        final ClusterView localClusterView = asClusterView(localClusterViewJSON);
        final JSONArray subAnnouncements = announcement
                .getJSONArray("topologyAnnouncements");


        if (announcement.has("inherited")) {
            final Boolean inherited = announcement.getBoolean("inherited");
            result.inherited = inherited;
        }
        if (announcement.has("serverInfo")) {
            String serverInfo = announcement.getString("serverInfo");
            result.serverInfo = serverInfo;
        }
        result.setLocalCluster(localClusterView);
        for (int i = 0; i < subAnnouncements.length(); i++) {
            String subAnnouncementJSON = subAnnouncements.getString(i);

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    }


    /** create a clusterview from json **/
    private static ClusterView asClusterView(final String localClusterViewJSON)
            throws JSONException {
        JSONObject obj = new JSONObject(localClusterViewJSON);
        DefaultClusterViewImpl clusterView = new DefaultClusterViewImpl(
                obj.getString("id"));
        JSONArray instancesObj = obj.getJSONArray("instances");


        for (int i = 0; i < instancesObj.length(); i++) {
            JSONObject anInstance = instancesObj.getJSONObject(i);
            clusterView.addInstanceDescription(asInstance(anInstance));
        }


        return clusterView;
    }

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