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:lh.api.showcase.client.referencedata.cities.CitiesResponseJsonParser.java

License:Apache License

private City getCityInfo(JSONObject jsCityObj) {
    JSONValue jsCityCodeVal = jsCityObj.get("CityCode");
    JSONValue jsCountryCodeVal = jsCityObj.get("CountryCode");

    if (jsCityCodeVal == null || jsCountryCodeVal == null) {
        return null;
    }/*from  w  ww  . j  a v a 2s  .  c om*/
    JSONString jsCityCodeStr = jsCityCodeVal.isString();
    JSONString jsCountryCodeStr = jsCountryCodeVal.isString();

    JSONNumber jsLatitudeNum = null;
    JSONNumber jsLongitudeNum = null;
    JSONValue jsCoordinateVal = jsCityObj.get("Position");
    if (jsCoordinateVal != null) {
        JSONObject jsCoordinateObj = jsCoordinateVal.isObject().get("Coordinate").isObject();
        jsLatitudeNum = jsCoordinateObj.get("Latitude").isNumber();
        jsLongitudeNum = jsCoordinateObj.get("Longitude").isNumber();
    }

    JSONObject jsNamesObj = jsCityObj.get("Names").isObject();

    JSONValue jsAirportsVal = jsCityObj.get("Airports");
    JSONObject jsAirportsObj = (jsAirportsVal == null) ? (null) : (jsAirportsVal.isObject());

    return new City((jsCityCodeStr == null) ? ("") : (jsCityCodeStr.toString().replace("\"", "")),
            (jsCountryCodeStr == null) ? ("") : (jsCountryCodeStr.toString().replace("\"", "")),
            (jsLatitudeNum == null) ? (null) : (jsLatitudeNum.doubleValue()),
            (jsLongitudeNum == null) ? (null) : (jsLongitudeNum.doubleValue()), getAirportInfo(jsAirportsObj),
            JsonParserUtils.getNamesMap(jsNamesObj));
}

From source file:lh.api.showcase.client.referencedata.countries.CountriesResponseJsonParser.java

License:Apache License

@Override
public List<Country> parse(String json) {
    List<Country> countries = new ArrayList<Country>();

    logger.log(Level.INFO, "JSON parsing");
    JSONValue jsv = JSONParser.parseStrict(json);
    JSONObject jobj = jsv.isObject();

    JSONValue jsCountriesResourceVal = jobj.get("CountryResource");
    JSONObject jsCountriesResourceObj = jsCountriesResourceVal.isObject();

    JSONValue jsCountriesVal = jsCountriesResourceObj.get("Countries");
    JSONObject jsCountriesObj = jsCountriesVal.isObject();

    JSONValue jsCountryVal = jsCountriesObj.get("Country");
    JSONObject jsCountryObj = jsCountryVal.isObject();

    if (jsCountryObj == null) {
        JSONArray jarrayCountries = jsCountryVal.isArray();
        if (jarrayCountries != null) {
            for (int i = 0; i < jarrayCountries.size(); ++i) {

                JSONObject jsCountryObject = jarrayCountries.get(i).isObject();
                if (jsCountryObject == null) {
                    continue;
                }/*from w w w  .j a va2 s .  c  om*/
                getCountryInfo(jsCountryObject, countries);
            }
        }
    } else {
        getCountryInfo(jsCountryObj, countries);
    }
    return countries;
}

From source file:lh.api.showcase.client.referencedata.countries.CountriesResponseJsonParser.java

License:Apache License

private void getCountryInfo(JSONObject jsCountryObj, List<Country> countries) {
    JSONValue jsCountryCodeVal = jsCountryObj.get("CountryCode");
    JSONString jsCountryCodeStr = (jsCountryCodeVal == null) ? (null) : (jsCountryCodeVal.isString());

    JSONValue jsCountryZoneVal = jsCountryObj.get("ZoneCode");
    JSONString jsZoneCodeStr = (jsCountryZoneVal == null) ? (null) : (jsCountryZoneVal.isString());

    JSONValue jsNamesVal = jsCountryObj.get("Names");
    JSONObject jsNamesObj = jsNamesVal.isObject();

    countries.add(/*from  ww w.j  a  v a2  s  . c  om*/
            new Country((jsCountryCodeStr == null) ? ("") : (jsCountryCodeStr.toString().replace("\"", "")),
                    (jsZoneCodeStr == null) ? ("") : (jsZoneCodeStr.toString().replace("\"", "")),
                    JsonParserUtils.getNamesMap(jsNamesObj)));
}

From source file:lh.api.showcase.client.referencedata.nearestairports.NearestAirportsResponseJsonParser.java

License:Apache License

@Override
public List<NearestAirport> parse(String json) {

    List<NearestAirport> ret = new ArrayList<NearestAirport>();

    JSONValue jsv = JSONParser.parseStrict(json);
    JSONObject jobj = jsv.isObject();

    JSONValue jsAirportResourceVal = jobj.get("NearestAirportResource");
    JSONObject jsAirportResourceObj = jsAirportResourceVal.isObject();

    JSONValue jsAirportsVal = jsAirportResourceObj.get("Airports");
    JSONObject jsAirportsObj = jsAirportsVal.isObject();

    JSONValue jsAirportVal = jsAirportsObj.get("Airport");
    JSONObject jsAirportObj = jsAirportVal.isObject();

    if (jsAirportObj == null) {
        JSONArray jarrayAirports = jsAirportVal.isArray();
        if (jarrayAirports != null) {
            for (int i = 0; i < jarrayAirports.size(); ++i) {
                JSONObject jsAirportObject = jarrayAirports.get(i).isObject();
                if (jsAirportObject == null) {
                    continue;
                }//from w  ww  .  j  a  va2 s .  c om
                NearestAirport na = getNearestAirportInfo(jsAirportObject);
                if (na != null) {
                    ret.add(na);
                }
            }
        }
    } else {
        NearestAirport na = getNearestAirportInfo(jsAirportObj);
        if (na != null) {
            ret.add(na);
        }
    }
    return ret;
}

From source file:MY_PACKAGE.client.Index.java

License:Apache License

/**
 * Show the successful message result of our REST call.
 * //  w  ww.j  a v a2  s.  c om
 * @param val    the value containing the JSON response from the server
 */
private void showSuccessMessage(JSONValue val) {
    JSONObject obj = val.isObject();
    String name = JSONUtil.getStringValue(obj, "user");
    String browser = JSONUtil.getStringValue(obj, "userAgent");
    String server = JSONUtil.getStringValue(obj, "serverInfo");

    String message = "Hello, " + name + "!  <br/>You are using " + browser + ".<br/>The server is " + server
            + ".";
    m_longMessage.setHTML(message);
}

From source file:name.cphillipson.experimental.gwt.client.module.common.widget.suggest.MultivalueSuggestBox.java

License:Apache License

/**
 * Retrieve Options (name-value pairs) that are suggested from the REST endpoint
 * /*from  www.  ja va2  s  .  c om*/
 * @param query
 *            - the String search term
 * @param from
 *            - the 0-based begin index int
 * @param to
 *            - the end index inclusive int
 * @param callback
 *            - the OptionQueryCallback to handle the response
 */
private void queryOptions(final String query, final int from, final int to,
        final OptionQueryCallback callback) {
    final RequestBuilder builder = new RequestBuilder(RequestBuilder.GET,
            URL.encode(m_restEndpointUrl + "?q=" + query + "&indexFrom=" + from + "&indexTo=" + to));

    // Set our headers
    builder.setHeader("Accept", "application/json");
    builder.setHeader("Accept-Charset", "UTF-8");

    builder.setCallback(new RequestCallback() {

        @Override
        public void onResponseReceived(com.google.gwt.http.client.Request request, Response response) {
            final JSONValue val = JSONParser.parse(response.getText());
            final JSONObject obj = val.isObject();
            final int totSize = (int) obj.get(OptionResultSet.TOTAL_SIZE).isNumber().doubleValue();
            final OptionResultSet options = new OptionResultSet(totSize);
            final JSONArray optionsArray = obj.get(OptionResultSet.OPTIONS).isArray();

            if (options.getTotalSize() > 0 && optionsArray != null) {

                for (int i = 0; i < optionsArray.size(); i++) {
                    if (optionsArray.get(i) == null) {
                        /*
                         * This happens when a JSON array has an invalid trailing comma
                         */
                        continue;
                    }

                    final JSONObject jsonOpt = optionsArray.get(i).isObject();
                    final Option option = new Option();
                    option.setName(jsonOpt.get(OptionResultSet.DISPLAY_NAME).isString().stringValue());
                    option.setValue(jsonOpt.get(OptionResultSet.VALUE).isString().stringValue());
                    options.addOption(option);
                }
            }
            callback.success(options);
        }

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

    try {
        builder.send();
    } catch (final RequestException e) {
        updateFormFeedback(FormFeedback.ERROR, "Error: " + e.getMessage());
    }
}

From source file:net.opentsdb.tsd.client.QueryUi.java

License:Open Source License

private void refreshVersion() {
    asyncGetJson(VERSION_URL, new GotJsonCallback() {
        public void got(final JSONValue json) {
            final JSONObject bd = json.isObject();
            final JSONString shortrev = bd.get("short_revision").isString();
            final JSONString status = bd.get("repo_status").isString();
            final JSONNumber stamp = bd.get("timestamp").isNumber();
            final JSONString user = bd.get("user").isString();
            final JSONString host = bd.get("host").isString();
            final JSONString repo = bd.get("repo").isString();
            build_data.setHTML("OpenTSDB built from revision " + shortrev.stringValue() + " in a "
                    + status.stringValue() + " state<br/>" + "Built on "
                    + new Date((long) (stamp.doubleValue() * 1000)) + " by " + user.stringValue() + '@'
                    + host.stringValue() + ':' + repo.stringValue());
        }// w  w  w  . j ava2 s  . com
    });
}

From source file:net.opentsdb.tsd.client.QueryUi.java

License:Open Source License

private void refreshGraph() {
    final Date start = start_datebox.getValue();
    if (start == null) {
        graphstatus.setText("Please specify a start time.");
        return;// w ww .  j  a  v  a2 s  . c  om
    }
    final Date end = end_datebox.getValue();
    if (end != null && !autoreoload.isChecked()) {
        if (end.getTime() <= start.getTime()) {
            end_datebox.addStyleName("dateBoxFormatError");
            graphstatus.setText("End time must be after start time!");
            return;
        }
    }
    final StringBuilder url = new StringBuilder();
    url.append("/q?start=").append(FULLDATE.format(start));
    if (end != null && !autoreoload.isChecked()) {
        url.append("&end=").append(FULLDATE.format(end));
    } else {
        // If there's no end-time, the graph may change while the URL remains
        // the same.  No browser seems to re-fetch an image once it's been
        // fetched, even if we destroy the DOM object and re-created it with the
        // same src attribute.  This has nothing to do with caching headers sent
        // by the server.  The browsers simply won't retrieve the same URL again
        // through JavaScript manipulations, period.  So as a workaround, we add
        // a special parameter that the server will delete from the query.
        url.append("&ignore=" + nrequests++);
    }
    if (!addAllMetrics(url)) {
        return;
    }
    addLabels(url);
    addFormats(url);
    addYRanges(url);
    addLogscales(url);
    if (nokey.isChecked()) {
        url.append("&nokey");
    } else if (!keypos.isEmpty() || horizontalkey.isChecked()) {
        url.append("&key=");
        if (!keypos.isEmpty()) {
            url.append(keypos);
        }
        if (horizontalkey.isChecked()) {
            url.append(" horiz");
        }
        if (keybox.isChecked()) {
            url.append(" box");
        }
    }
    url.append("&wxh=").append(wxh.getText());
    final String uri = url.toString();
    if (uri.equals(lastgraphuri)) {
        return; // Don't re-request the same graph.
    } else if (pending_requests++ > 0) {
        return;
    }
    lastgraphuri = uri;
    graphstatus.setText("Loading graph...");
    asyncGetJson(uri + "&json", new GotJsonCallback() {
        public void got(final JSONValue json) {
            if (autoreoload_timer != null) {
                autoreoload_timer.cancel();
                autoreoload_timer = null;
            }
            final JSONObject result = json.isObject();
            final JSONValue err = result.get("err");
            String msg = "";
            if (err != null) {
                displayError("An error occurred while generating the graph: " + err.isString().stringValue());
                graphstatus.setText("Please correct the error above.");
            } else {
                clearError();
                final JSONValue nplotted = result.get("plotted");
                final JSONValue cachehit = result.get("cachehit");
                if (cachehit != null) {
                    msg += "Cache hit (" + cachehit.isString().stringValue() + "). ";
                }
                if (nplotted != null && nplotted.isNumber().doubleValue() > 0) {
                    graph.setUrl(uri + "&png");
                    graph.setVisible(true);
                    msg += result.get("points").isNumber() + " points retrieved, " + nplotted
                            + " points plotted";
                } else {
                    graph.setVisible(false);
                    msg += "Your query didn't return anything";
                }
                final JSONValue timing = result.get("timing");
                if (timing != null) {
                    msg += " in " + timing + "ms.";
                } else {
                    msg += '.';
                }
            }
            final JSONValue info = result.get("info");
            if (info != null) {
                if (!msg.isEmpty()) {
                    msg += ' ';
                }
                msg += info.isString().stringValue();
            }
            graphstatus.setText(msg);
            if (result.get("etags") != null) {
                final JSONArray etags = result.get("etags").isArray();
                final int netags = etags.size();
                for (int i = 0; i < netags; i++) {
                    if (i >= metrics.getWidgetCount()) {
                        break;
                    }
                    final Widget widget = metrics.getWidget(i);
                    if (!(widget instanceof MetricForm)) {
                        break;
                    }
                    final MetricForm metric = (MetricForm) widget;
                    final JSONArray tags = etags.get(i).isArray();
                    final int ntags = tags.size();
                    for (int j = 0; j < ntags; j++) {
                        metric.autoSuggestTag(tags.get(j).isString().stringValue());
                    }
                }
            }
            if (autoreoload.isChecked()) {
                final int reload_in = Integer.parseInt(autoreoload_interval.getValue());
                if (reload_in >= 5) {
                    autoreoload_timer = new Timer() {
                        public void run() {
                            // Verify that we still want auto reload and that the graph
                            // hasn't been updated in the mean time.
                            if (autoreoload.isChecked() && lastgraphuri == uri) {
                                // Force refreshGraph to believe that we want a new graph.
                                lastgraphuri = "";
                                refreshGraph();
                            }
                        }
                    };
                    autoreoload_timer.schedule(reload_in * 1000);
                }
            }
            if (--pending_requests > 0) {
                pending_requests = 0;
                refreshGraph();
            }
        }
    });
}

From source file:net.opentsdb.tsd.client.QueryUi.java

License:Open Source License

private void asyncGetJson(final String url, final GotJsonCallback callback) {
    final RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, url);
    try {/*from w  ww.  j  a v a 2s.  c  o  m*/
        builder.sendRequest(null, new RequestCallback() {
            public void onError(final Request request, final Throwable e) {
                displayError("Failed to get " + url + ": " + e.getMessage());
                // Since we don't call the callback we've been given, reset this
                // bit of state as we're not going to retry anything right now.
                pending_requests = 0;
            }

            public void onResponseReceived(final Request request, final Response response) {
                final int code = response.getStatusCode();
                if (code == Response.SC_OK) {
                    clearError();
                    callback.got(JSONParser.parse(response.getText()));
                    return;
                } else if (code >= Response.SC_BAD_REQUEST) { // 400+ => Oops.
                    // Since we don't call the callback we've been given, reset this
                    // bit of state as we're not going to retry anything right now.
                    pending_requests = 0;
                    String err = response.getText();
                    // If the response looks like a JSON object, it probably contains
                    // an error message.
                    if (!err.isEmpty() && err.charAt(0) == '{') {
                        final JSONValue json = JSONParser.parse(err);
                        final JSONObject result = json == null ? null : json.isObject();
                        final JSONValue jerr = result == null ? null : result.get("err");
                        final JSONString serr = jerr == null ? null : jerr.isString();
                        err = serr.stringValue();
                        // If the error message has multiple lines (which is common if
                        // it contains a stack trace), show only the first line and
                        // hide the rest in a panel users can expand.
                        final int newline = err.indexOf('\n', 1);
                        final String msg = "Request failed: " + response.getStatusText();
                        if (newline < 0) {
                            displayError(msg + ": " + err);
                        } else {
                            displayError(msg);
                            final DisclosurePanel dp = new DisclosurePanel(err.substring(0, newline));
                            RootPanel.get("queryuimain").add(dp); // Attach the widget.
                            final InlineLabel content = new InlineLabel(err.substring(newline, err.length()));
                            content.addStyleName("fwf"); // For readable stack traces.
                            dp.setContent(content);
                            current_error.getElement().appendChild(dp.getElement());
                        }
                    } else {
                        displayError("Request failed while getting " + url + ": " + response.getStatusText());
                        // Since we don't call the callback we've been given, reset this
                        // bit of state as we're not going to retry anything right now.
                        pending_requests = 0;
                    }
                    graphstatus.setText("");
                }
            }
        });
    } catch (RequestException e) {
        displayError("Failed to get " + url + ": " + e.getMessage());
    }
}

From source file:net.vleu.par.gwt.client.storage.PersistentStorage.java

License:Open Source License

/**
 * Reads {@link #cookiesJson} save by {@link #writeCookies()} in the
 * browser's cookie jar/*  w  ww  . j av  a 2 s  . co m*/
 * 
 * @return The unserialized object, or null if there weren't any
 */
private JSONObject readCookies() {
    final String serializedCookies = Cookies.getCookie(COOKIE_NAME);
    JSONValue jsonValue;
    if (serializedCookies == null)
        return null;
    try {
        jsonValue = JSONParser.parseLenient(serializedCookies);
    } catch (final Exception _) {
        return null;
    }
    return jsonValue.isObject();
}