Example usage for com.google.gwt.json.client JSONValue isObject

List of usage examples for com.google.gwt.json.client JSONValue isObject

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Introduction

In this page you can find the example usage for com.google.gwt.json.client JSONValue isObject.

Prototype

public JSONObject isObject()

Source Link

Document

Returns non-null if this JSONValue is really a JSONObject.

Usage

From source file:org.rest.client.activity.RequestActivity.java

License:Apache License

private ArrayList<RedirectData> getRedirectData(JSONArray response) {
    ArrayList<RedirectData> result = new ArrayList<RedirectData>();
    if (response == null) {
        return result;
    }//from ww  w. jav a  2  s  .c om
    int size = response.size();
    for (int i = 0; i < size; i++) {
        JSONValue itemValue = response.get(i);
        JSONObject item = itemValue.isObject();
        if (item == null)
            continue;

        boolean fromCache = item.get("fromCache").isBoolean().booleanValue();
        String redirectUrl = item.get("redirectUrl").isString().stringValue();

        String statusLine = null;
        JSONValue statusLineValue = item.get("statusLine");
        if (statusLineValue != null) {
            statusLine = item.get("statusLine").isString().stringValue();
        }
        int statusCode = Integer.parseInt(item.get("statusCode").isNumber().toString());
        ArrayList<Header> headers = extractHeadersExternal(item, "responseHeaders");
        RedirectData redirect = new RedirectData();
        redirect.setRedirectUrl(redirectUrl);
        redirect.setFromCache(fromCache);
        redirect.setResponseHeaders(headers);
        redirect.setStatusCode(statusCode);
        if (statusLine != null)
            redirect.setStatusLine(statusLine);
        result.add(redirect);
    }
    return result;
}

From source file:org.rest.client.activity.RequestActivity.java

License:Apache License

private ArrayList<Header> extractHeadersExternal(JSONObject response, String key) {
    ArrayList<Header> headers = new ArrayList<Header>();
    JSONValue valuesValue = response.get(key);
    if (valuesValue == null) {
        return headers;
    }/*ww  w .  ja  v  a 2 s  .c  om*/
    JSONArray arr = valuesValue.isArray();
    if (arr == null) {
        return headers;
    }
    int len = arr.size();
    for (int i = 0; i < len; i++) {
        JSONValue item = arr.get(i);
        final String name = item.isObject().get("name").isString().stringValue();
        final String value = item.isObject().get("value").isString().stringValue();
        Header header = new Header() {
            @Override
            public String getName() {
                return name;
            }

            @Override
            public String getValue() {
                return value;
            }

            @Override
            public String toString() {
                return name + " : " + value;
            }
        };
        headers.add(header);
    }
    return headers;
}

From source file:org.rest.client.activity.RequestActivity.java

License:Apache License

private void createExternalRequest(final String requestUUID) {
    clientFactory.getChromeMessagePassing().postMessage(ExternalEventsFactory.EXT_GET_EXTERNAL_REQUEST_DATA,
            requestUUID, new BackgroundPageCallback() {
                @Override/*  www  .  ja  v a2  s .  c  o m*/
                public void onSuccess(String result) {
                    if (result.isEmpty()) {
                        StatusNotification.notify("Data from external extension is no longer available :(",
                                StatusNotification.TYPE_CRITICAL, StatusNotification.TIME_MEDIUM);
                        return;
                    }
                    JSONValue parsedValue = null;
                    try {
                        parsedValue = JSONParser.parseStrict(result);
                    } catch (Exception e) {
                    }
                    if (parsedValue == null) {
                        Log.error("Malformed External Data Exception. Passed data: " + result);
                        StatusNotification.notify("Unable to read data from external extension :(",
                                StatusNotification.TYPE_CRITICAL, StatusNotification.TIME_MEDIUM);
                        return;
                    }
                    JSONObject obj = parsedValue.isObject();
                    if (obj.containsKey("error")) {
                        if (obj.get("error").isBoolean().booleanValue()) {
                            Log.error("Error get External Data. Message: "
                                    + obj.get("message").isString().stringValue());
                            StatusNotification.notify(obj.get("message").isString().stringValue(),
                                    StatusNotification.TYPE_CRITICAL, StatusNotification.TIME_MEDIUM);
                            return;
                        }
                    }
                    if (obj.containsKey("data")) {
                        JSONObject dataObj = obj.get("data").isObject();
                        if (dataObj.containsKey("url")) {
                            requestView.setUrl(dataObj.get("url").isString().stringValue());
                        }
                        if (dataObj.containsKey("method")) {
                            requestView.setMethod(dataObj.get("method").isString().stringValue());
                        }
                        if (dataObj.containsKey("headers")) {
                            requestView.setHeaders(dataObj.get("headers").isString().stringValue());
                        }
                        if (dataObj.containsKey("payload")) {
                            requestView.setPayload(dataObj.get("payload").isString().stringValue());
                        }
                        if (dataObj.containsKey("encoding")) {
                            requestView.setEncoding(dataObj.get("encoding").isString().stringValue());
                        }
                    }
                    RestClient.fixChromeLayout();
                }

                @Override
                public void onError(String message) {
                    if (RestClient.isDebug()) {
                        Log.error("Unknown error occured: " + message);
                    }
                }
            });

}

From source file:org.roda.wui.client.common.utils.FormUtilities.java

private static void addList(FlowPanel panel, final FlowPanel layout, final MetadataValue mv,
        final boolean mandatory) {
    // Top Label//w w w  .java2  s . c  o  m
    Label mvLabel = new Label(getFieldLabel(mv));
    mvLabel.addStyleName("form-label");
    if (mandatory) {
        mvLabel.addStyleName("form-label-mandatory");
    }
    // Field
    final ListBox mvList = new ListBox();
    mvList.setTitle(mvLabel.getText());
    mvList.addStyleName("form-textbox");

    String options = mv.get("options");
    JSONArray optionsArray = null;
    if (options != null) {
        optionsArray = JSONParser.parseLenient(options).isArray();
    }

    String list = mv.get("optionsLabels");
    mvList.addItem("");

    if (list != null) {
        JSONArray jsonArray = JSONParser.parseLenient(list).isArray();
        if (jsonArray != null) {
            for (int i = 0; i < jsonArray.size(); i++) {
                String value = jsonArray.get(i).isString().stringValue();
                mvList.addItem(value);

                if (value.equals(mv.get("value"))) {
                    mvList.setSelectedIndex(i + 1);
                }
            }
        } else {
            JSONObject jsonObject = JSONParser.parseLenient(list).isObject();
            if (jsonObject != null) {
                String loc = LocaleInfo.getCurrentLocale().getLocaleName();
                int i = 0;

                if (optionsArray != null) {
                    for (int pos = 0; pos < optionsArray.size(); pos++) {
                        String key = optionsArray.get(pos).isString().stringValue();
                        JSONValue entry = jsonObject.get(key);
                        if (entry.isObject() != null) {
                            JSONValue jsonValue = entry.isObject().get(loc);
                            String value;
                            if (jsonValue != null) {
                                value = jsonValue.isString().stringValue();
                            } else {
                                value = entry.isObject().get(entry.isObject().keySet().iterator().next())
                                        .isString().stringValue();
                            }
                            if (value != null) {
                                mvList.addItem(value, key);
                                if (key.equals(mv.get("value"))) {
                                    mvList.setSelectedIndex(i + 1);
                                }
                            }
                        }
                        i++;
                    }
                } else {
                    for (String key : jsonObject.keySet()) {
                        JSONValue entry = jsonObject.get(key);
                        if (entry.isObject() != null) {
                            JSONValue jsonValue = entry.isObject().get(loc);
                            String value;
                            if (jsonValue != null) {
                                value = jsonValue.isString().stringValue();
                            } else {
                                value = entry.isObject().get(entry.isObject().keySet().iterator().next())
                                        .isString().stringValue();
                            }
                            if (value != null) {
                                mvList.addItem(value, key);
                                if (key.equals(mv.get("value"))) {
                                    mvList.setSelectedIndex(i + 1);
                                }
                            }
                        }
                        i++;
                    }
                }
            }
        }
    } else {
        if (optionsArray != null) {
            int i = 0;
            for (int pos = 0; pos < optionsArray.size(); pos++) {
                String key = optionsArray.get(pos).isString().stringValue();
                if (key != null) {
                    mvList.addItem(key, key);
                    if (key.equals(mv.get("value"))) {
                        mvList.setSelectedIndex(i + 1);
                    }
                }
                i++;
            }
        }
    }

    mvList.addChangeHandler(new ChangeHandler() {
        @Override
        public void onChange(ChangeEvent changeEvent) {
            mv.set("value", mvList.getSelectedValue());
            if (mandatory
                    && (mvList.getSelectedValue() != null && !"".equals(mvList.getSelectedValue().trim()))) {
                mvList.removeStyleName("isWrong");
            }

            if (mandatory && (mvList.getSelectedValue() == null
                    || "".equalsIgnoreCase(mvList.getSelectedValue().trim()))) {
                mvList.removeStyleName("isWrong");
            }
        }
    });

    if (mv.get("value") == null || mv.get("value").isEmpty()) {
        mvList.setSelectedIndex(0);
        mv.set("value", mvList.getSelectedValue());
    }

    layout.add(mvLabel);
    layout.add(mvList);

    // Description
    String description = mv.get("description");
    if (description != null && description.length() > 0) {
        Label mvDescription = new Label(description);
        mvDescription.addStyleName("form-help");
        layout.add(mvDescription);
    }

    if (mv.get("error") != null && !"".equals(mv.get("error").trim())) {
        Label errorLabel = new Label(mv.get("error"));
        errorLabel.addStyleName("form-label-error");
        layout.add(errorLabel);
        mvList.addStyleName("isWrong");
    }
    panel.add(layout);
}

From source file:org.rstudio.core.client.jsonrpc.RpcResponse.java

License:Open Source License

public final static RpcResponse parse(String json) {
    try {//from  w w  w.j a  va  2 s .c o m
        // we first call parseStrict so we can use the browser
        // json parser (for performance) whenever possible)
        JSONValue val = JSONParser.parseStrict(json);
        return val.isObject().getJavaScriptObject().cast();
    } catch (Exception e) {
        try {
            // there are some cases where json emitted by our 
            // server isn't parsable by parseStrict (for example,
            // see bug #3025). for these situations we call 
            // parseLenient (which in turn calls eval)
            JSONValue val = JSONParser.parseLenient(json);
            return val.isObject().getJavaScriptObject().cast();
        } catch (Exception e2) {
            return null;
        }
    }
}

From source file:org.sakaiproject.gradebook.gwt.client.gxt.view.panel.GradeScalePanel.java

License:Educational Community License

private void getStatisticsChartData() {

    /*/*from ww w . j a v  a 2 s . co  m*/
     *  GRBK-1071
     *  No need to get the data if the visualization API hasn't been loaded yet
     */
    if (!canGetStatisticsChartData) {

        return;
    }

    showUserFeedback();

    Gradebook gbModel = Registry.get(AppConstants.CURRENT);

    RestBuilder builder = RestBuilder.getInstance(Method.GET, GWT.getModuleBaseURL(),
            AppConstants.REST_FRAGMENT, AppConstants.STATISTICS_FRAGMENT, AppConstants.COURSE_FRAGMENT,
            gbModel.getGradebookUid());

    builder.sendRequest(200, 400, null, new RestCallback() {

        public void onError(Request request, Throwable caught) {

            hideUserFeedback();
            Dispatcher.forwardEvent(GradebookEvents.Notification.getEventType(), new NotificationEvent(
                    i18n.statisticsDataErrorTitle(), i18n.statisticsDataErrorMsg(), true));
        }

        public void onFailure(Request request, Throwable exception) {

            hideUserFeedback();
            Dispatcher.forwardEvent(GradebookEvents.Notification.getEventType(), new NotificationEvent(
                    i18n.statisticsDataErrorTitle(), i18n.statisticsDataErrorMsg(), true));
        }

        public void onSuccess(Request request, Response response) {

            /*
             * The response text contains a sorted linked-list map, where the keys are the letter grades and the values
             * are the frequency.
             * e.g. {"F":0, "D-":3, "D":1, "D+":0, "C-":5, "C":0, "C+":1, "B-":0, "B":20, "B+":0, "A-":3, "A":12, "A+":1}
             * 
             */
            JSONValue jsonValue = JSONParser.parseStrict(response.getText());
            JSONObject jsonObject = jsonValue.isObject();
            Set<String> keys = jsonObject.keySet();

            // Initialize the DataTable
            DataTable dataTable = statisticsChartPanel.createDataTable();
            dataTable.addColumn(ColumnType.STRING, i18n.statisticsChartLabelDistribution());
            dataTable.addColumn(ColumnType.NUMBER, i18n.statisticsChartLabelFrequency());
            dataTable.addRows(keys.size());

            Iterator<String> iter = keys.iterator();
            int index = 0;
            while (iter.hasNext()) {

                String key = iter.next();
                dataTable.setValue(index, 0, key);
                dataTable.setValue(index, 1, jsonObject.get(key).isNumber().doubleValue());
                index++;
            }

            statisticsChartPanel.show();

            hideUserFeedback();
        }
    });
}

From source file:org.sakaiproject.gradebook.gwt.client.gxt.view.panel.StatisticsPanel.java

License:Educational Community License

private void getCourseStatisticsChartData(String sectionId) {

    // First we check the cache if we have the data already
    String cacheKey = COURSE_CACHE_KEY_PREFIX + sectionId;

    if (dataTableCache.containsKey(cacheKey)) {

        // Cache hit
        dataTable = dataTableCache.get(cacheKey);
        statisticsChartPanel.setDataTable(dataTable);
        statisticsChartPanel.show();/*from w ww  .java 2 s .co m*/
    } else {

        statisticsChartPanel.showUserFeedback(null);

        Gradebook gbModel = Registry.get(AppConstants.CURRENT);

        RestBuilder builder = RestBuilder.getInstance(Method.GET, GWT.getModuleBaseURL(),
                AppConstants.REST_FRAGMENT, AppConstants.STATISTICS_FRAGMENT, AppConstants.COURSE_FRAGMENT,
                gbModel.getGradebookUid(), sectionId);

        selectedSectionId = sectionId;

        builder.sendRequest(200, 400, null, new RestCallback() {

            public void onError(Request request, Throwable caught) {

                statisticsChartPanel.hideUserFeedback(null);
                Dispatcher.forwardEvent(GradebookEvents.Notification.getEventType(), new NotificationEvent(
                        i18n.statisticsDataErrorTitle(), i18n.statisticsDataErrorMsg(), true));
            }

            public void onFailure(Request request, Throwable exception) {

                statisticsChartPanel.hideUserFeedback(null);
                Dispatcher.forwardEvent(GradebookEvents.Notification.getEventType(), new NotificationEvent(
                        i18n.statisticsDataErrorTitle(), i18n.statisticsDataErrorMsg(), true));
            }

            public void onSuccess(Request request, Response response) {

                /*
                 * The response text contains a sorted linked-list map, where the keys are the letter grades and the values
                 * are the frequency.
                 * e.g. {"F":0, "D-":3, "D":1, "D+":0, "C-":5, "C":0, "C+":1, "B-":0, "B":20, "B+":0, "A-":3, "A":12, "A+":1}
                 * 
                 */
                JSONValue jsonValue = JSONParser.parseStrict(response.getText());
                JSONObject jsonObject = jsonValue.isObject();
                Set<String> keys = jsonObject.keySet();

                // Initialize the datatable
                dataTable = statisticsChartPanel.createDataTable();
                dataTable.addColumn(ColumnType.STRING, i18n.statisticsChartLabelDistribution());
                dataTable.addColumn(ColumnType.NUMBER, i18n.statisticsChartLabelFrequency());
                dataTable.addRows(keys.size());

                Iterator<String> iter = keys.iterator();
                int index = 0;
                while (iter.hasNext()) {

                    String key = iter.next();
                    dataTable.setValue(index, 0, key);
                    dataTable.setValue(index, 1, jsonObject.get(key).isNumber().doubleValue());
                    index++;
                }

                statisticsChartPanel.show();

                // adding the dataTable to the cache
                dataTableCache.put(COURSE_CACHE_KEY_PREFIX + selectedSectionId, dataTable);

                statisticsChartPanel.hideUserFeedback(null);
            }
        });
    }
}

From source file:org.sakaiproject.gradebook.gwt.client.gxt.view.panel.StudentPanel.java

License:Educational Community License

private void getCourseStatisticsChartData() {

    // First we check the cache if we have the data already
    String cacheKey = COURSE_CACHE_KEY_PREFIX;

    if (dataTableCache.containsKey(cacheKey)) {

        // Cache hit
        dataTable = dataTableCache.get(cacheKey);
        statisticsChartPanel.setDataTable(dataTable);
        statisticsChartPanel.show();/*  www  . j  ava2s. co  m*/
    } else {

        statisticsChartPanel.showUserFeedback(null);

        Gradebook gbModel = Registry.get(AppConstants.CURRENT);

        RestBuilder builder = RestBuilder.getInstance(Method.GET, GWT.getModuleBaseURL(),
                AppConstants.REST_FRAGMENT, AppConstants.STATISTICS_FRAGMENT, AppConstants.STUDENT_FRAGMENT,
                AppConstants.COURSE_FRAGMENT, gbModel.getGradebookUid(), Base64.encode(AppConstants.ALL));

        builder.sendRequest(200, 400, null, new RestCallback() {

            public void onError(Request request, Throwable caught) {

                statisticsChartPanel.hideUserFeedback(null);
                Dispatcher.forwardEvent(GradebookEvents.Notification.getEventType(), new NotificationEvent(
                        i18n.statisticsDataErrorTitle(), i18n.statisticsDataErrorMsg(), true));
            }

            public void onFailure(Request request, Throwable exception) {

                statisticsChartPanel.hideUserFeedback(null);
                Dispatcher.forwardEvent(GradebookEvents.Notification.getEventType(), new NotificationEvent(
                        i18n.statisticsDataErrorTitle(), i18n.statisticsDataErrorMsg(), true));
            }

            public void onSuccess(Request request, Response response) {

                /*
                 * The response text contains a sorted linked-list map, where the keys are the letter grades and the values
                 * are the frequency.
                 * e.g. {"F":0, "D-":3, "D":1, "D+":0, "C-":5, "C":0, "C+":1, "B-":0, "B":20, "B+":0, "A-":3, "A":12, "A+":1}
                 * 
                 */
                JSONValue jsonValue = JSONParser.parseStrict(response.getText());
                JSONObject jsonObject = jsonValue.isObject();
                Set<String> keys = jsonObject.keySet();

                // Initialize the datatable
                dataTable = statisticsChartPanel.createDataTable();
                dataTable.addColumn(ColumnType.STRING, i18n.statisticsChartLabelDistribution());
                dataTable.addColumn(ColumnType.NUMBER, i18n.statisticsChartLabelFrequency());
                dataTable.addRows(keys.size());

                Iterator<String> iter = keys.iterator();
                int index = 0;
                while (iter.hasNext()) {

                    String key = iter.next();
                    dataTable.setValue(index, 0, key);
                    dataTable.setValue(index, 1, jsonObject.get(key).isNumber().doubleValue());
                    index++;
                }

                statisticsChartPanel.show();

                // adding the dataTable to the cache
                dataTableCache.put(COURSE_CACHE_KEY_PREFIX, dataTable);

                statisticsChartPanel.hideUserFeedback(null);
            }
        });
    }
}

From source file:org.sigmah.offline.status.ApplicationStateManager.java

License:Open Source License

private void updateStatus() {
    final RequestBuilder requestBuilder = new RequestBuilder(RequestBuilder.GET, "sigmah/online.nocache.json");
    try {//from w w w. j  av a2s.  c o  m
        requestBuilder.sendRequest(null, new RequestCallback() {
            @Override
            public void onResponseReceived(com.google.gwt.http.client.Request request, Response response) {
                if (response != null && response.getText() != null && !response.getText().isEmpty()) {
                    try {
                        final JSONValue value = JSONParser.parseStrict(response.getText());
                        final JSONObject object = value.isObject();
                        if (object != null) {
                            final JSONValue onlineObject = object.get("online");
                            final JSONBoolean online = onlineObject.isBoolean();
                            setOnline(online != null && online.booleanValue());
                        } else {
                            setOnline(false);
                        }
                    } catch (JSONException ex) {
                        setOnline(false);
                        Log.error(
                                "An error occured while parsing the JSON string: '" + response.getText() + "'.",
                                ex);
                    }
                } else {
                    setOnline(false);
                }
            }

            @Override
            public void onError(com.google.gwt.http.client.Request request, Throwable exception) {
                setOnline(false);
            }
        });

    } catch (RequestException ex) {
        setOnline(false);
        Log.error("An error occured while checking the connection state.", ex);
    }
}

From source file:org.sigmah.offline.status.ConnectionStatus.java

License:Open Source License

public void updateStatus() {
    final RequestBuilder requestBuilder = new RequestBuilder(RequestBuilder.GET, "sigmah/online.nocache.json");
    try {//from www.  ja  v a 2 s .c o  m
        requestBuilder.sendRequest(null, new RequestCallback() {
            @Override
            public void onResponseReceived(com.google.gwt.http.client.Request request, Response response) {
                if (response != null && response.getText() != null && !response.getText().isEmpty()) {
                    try {
                        final JSONValue value = JSONParser.parseStrict(response.getText());
                        final JSONObject object = value.isObject();
                        if (object != null) {
                            final JSONValue online = object.get("online");
                            final JSONBoolean isOnline = online.isBoolean();
                            setOnline(isOnline != null && isOnline.booleanValue());
                        } else {
                            setOnline(false);
                        }
                    } catch (JSONException ex) {
                        setOnline(false);
                        Log.error(
                                "An error occured while parsing the JSON string: '" + response.getText() + "'.",
                                ex);
                    }
                } else {
                    setOnline(false);
                }
            }

            @Override
            public void onError(com.google.gwt.http.client.Request request, Throwable exception) {
                setOnline(false);
            }
        });

    } catch (RequestException ex) {
        setOnline(false);
        Log.error("An error occured while checking the connection state.", ex);
    }
}