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

Introduction

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

Prototype

public JSONString isString() 

Source Link

Document

Returns a non-null reference if this JSONValue is really a JSONString.

Usage

From source file:es.deusto.weblab.client.comm.CommonSerializerJSON.java

License:Open Source License

protected String json2string(JSONValue value, boolean supportNull) throws SerializationException {
    if (value == null || value.toString().trim().equals("{}")) {
        if (supportNull)
            return null;

        throw new SerializationException("String expected, found null");
    }/*from w  ww . ja  v a  2  s. co  m*/
    final JSONString jsonstring = value.isString();
    if (jsonstring == null)
        throw new SerializationException("String expected, found: " + value);
    return jsonstring.stringValue();
}

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From source file:es.deusto.weblab.client.configuration.ConfigurationRetriever.java

License:Open Source License

/**
 * Retrieves a String property. Will throw an exception if not found.
 * @param key String which uniquely identifies the property
 *///  w ww .  j a v a 2  s .co m
@Override
public String getProperty(String key)
        throws ConfigurationKeyNotFoundException, InvalidConfigurationValueException {
    final JSONValue value = this.getJSONProperty(key);
    if (value == null)
        throw new ConfigurationKeyNotFoundException("Configuration key: " + key + " not found");

    final JSONString stringValue = value.isString();
    if (stringValue == null)
        throw new InvalidConfigurationValueException("Invalid string format for key " + key);

    return stringValue.stringValue();
}

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From source file:es.deusto.weblab.client.configuration.ConfigurationRetriever.java

License:Open Source License

/**
 * Retrieves a string property. If the property is not found,
 * a default value is returned./*from w w w .  ja  v  a 2s .co m*/
 * @param key String which uniquely identifies the property
 * @param def Default string to return in case no string is found for the
 * specified key.
 */
@Override
public String getProperty(String key, String def) {
    final JSONValue s = this.getJSONProperty(key);
    if (s == null)
        return def;

    final JSONString stringValue = s.isString();
    if (stringValue == null)
        return def;

    return stringValue.stringValue();
}

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From source file:es.deusto.weblab.client.experiments.aquarium.ui.SingleWebcamPanel.java

License:Open Source License

private void configureWebcam(WlWebcam webcam, JSONObject initialConfigObject, int number) {
    final JSONValue webcamValue = initialConfigObject.get("webcam" + number);
    if (webcamValue != null) {
        final String urlWebcam = webcamValue.isString().stringValue();
        webcam.setUrl(urlWebcam);/*from  w w w  . ja v  a 2s . c  o m*/
    }

    final JSONValue mjpegValue = initialConfigObject.get("mjpeg" + number);
    if (mjpegValue != null) {
        final String mjpeg = mjpegValue.isString().stringValue();
        int width = 320;
        int height = 240;
        if (initialConfigObject.get("mjpegWidth" + number) != null) {
            final JSONValue mjpegWidth = initialConfigObject.get("mjpegWidth" + number);
            if (mjpegWidth.isNumber() != null) {
                width = (int) mjpegWidth.isNumber().doubleValue();
            } else if (mjpegWidth.isString() != null) {
                width = Integer.parseInt(mjpegWidth.isString().stringValue());
            }
        }
        if (initialConfigObject.get("mjpegHeight" + number) != null) {
            final JSONValue mjpegHeight = initialConfigObject.get("mjpegHeight" + number);
            if (mjpegHeight.isNumber() != null) {
                height = (int) mjpegHeight.isNumber().doubleValue();
            } else if (mjpegHeight.isString() != null) {
                height = Integer.parseInt(mjpegHeight.isString().stringValue());
            }
        }
        webcam.setStreamingUrl(mjpeg, width, height);
    }
}

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From source file:es.deusto.weblab.client.experiments.incubator.ui.EggMiniWidget.java

License:Open Source License

private void configureWebcam(WlWebcam webcam, JSONObject initialConfigObject, String number) {
    final JSONValue webcamValue = initialConfigObject.get("webcam" + number);
    if (webcamValue != null) {
        final String urlWebcam = webcamValue.isString().stringValue();
        webcam.setUrl(urlWebcam);//from   www. j a  v a2s.co  m
    }

    final JSONValue mjpegValue = initialConfigObject.get("mjpeg" + number);
    if (mjpegValue != null) {
        final String mjpeg = mjpegValue.isString().stringValue();
        int width = 320;
        int height = 240;
        if (initialConfigObject.get("mjpegWidth" + number) != null) {
            final JSONValue mjpegWidth = initialConfigObject.get("mjpegWidth" + number);
            if (mjpegWidth.isNumber() != null) {
                width = (int) mjpegWidth.isNumber().doubleValue();
            } else if (mjpegWidth.isString() != null) {
                width = Integer.parseInt(mjpegWidth.isString().stringValue());
            }
        }
        if (initialConfigObject.get("mjpegHeight" + number) != null) {
            final JSONValue mjpegHeight = initialConfigObject.get("mjpegHeight" + number);
            if (mjpegHeight.isNumber() != null) {
                height = (int) mjpegHeight.isNumber().doubleValue();
            } else if (mjpegHeight.isString() != null) {
                height = Integer.parseInt(mjpegHeight.isString().stringValue());
            }
        }
        webcam.setStreamingUrl(mjpeg, width, height);
    }
}

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From source file:es.deusto.weblab.client.experiments.pic18.ui.Pic18Experiment.java

License:Open Source License

private boolean parseWebcamConfig(String initialConfiguration) {
    final JSONValue initialConfigValue = JSONParser.parseStrict(initialConfiguration);
    final JSONObject initialConfigObject = initialConfigValue.isObject();
    if (initialConfigObject == null) {
        Window.alert("Error parsing robot configuration: not an object: " + initialConfiguration);
        return true;
    }//w  ww  .j a v  a 2  s  . c  om

    final JSONValue webcamValue = initialConfigObject.get("webcam");
    if (webcamValue != null) {
        final String urlWebcam = webcamValue.isString().stringValue();
        this.webcam.setUrl(urlWebcam);
    }

    final JSONValue mjpegValue = initialConfigObject.get("mjpeg");
    if (mjpegValue != null) {
        final String mjpeg = mjpegValue.isString().stringValue();
        int width = 320;
        int height = 240;
        if (initialConfigObject.get("mjpegWidth") != null) {
            final JSONValue mjpegWidth = initialConfigObject.get("mjpegWidth");
            if (mjpegWidth.isNumber() != null) {
                width = (int) mjpegWidth.isNumber().doubleValue();
            } else if (mjpegWidth.isString() != null) {
                width = Integer.parseInt(mjpegWidth.isString().stringValue());
            }
        }
        if (initialConfigObject.get("mjpegHeight") != null) {
            final JSONValue mjpegHeight = initialConfigObject.get("mjpegHeight");
            if (mjpegHeight.isNumber() != null) {
                height = (int) mjpegHeight.isNumber().doubleValue();
            } else if (mjpegHeight.isString() != null) {
                height = Integer.parseInt(mjpegHeight.isString().stringValue());
            }
        }
        this.webcam.setStreamingUrl(mjpeg, width, height);
    }
    return false;
}

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From source file:es.deusto.weblab.client.experiments.visir.VisirSetupData.java

License:Open Source License

/**
 * Parses the string, storing the received parameters for them
 * to be retrieved through various getters.
 * @param response Response that was received
 * @return true if the response was successfully parsed, false otherwise
 *///from  w  w  w  . j a  v  a 2s. c o  m
public boolean parseData(String response) {

    try {

        final JSONValue val = JSONParser.parseStrict(response);
        final JSONObject obj = val.isObject();
        if (obj == null)
            return false;

        final JSONValue cookieval = obj.get("cookie");
        final JSONValue savedataval = obj.get("savedata");
        final JSONValue urlval = obj.get("url");
        final JSONValue teacherval = obj.get("teacher");

        final JSONValue circuitsList = obj.get("circuits");

        if (cookieval == null || savedataval == null || urlval == null)
            return false;

        final JSONString cookiestr = cookieval.isString();
        final JSONString savedatastr = savedataval.isString();
        final JSONString urlstr = urlval.isString();

        if (cookiestr == null || savedatastr == null || urlstr == null)
            return false;

        this.cookie = cookiestr.stringValue();
        this.saveData = savedatastr.stringValue();
        this.url = urlstr.stringValue();

        if (teacherval != null) {
            JSONBoolean teacherbool = teacherval.isBoolean();
            this.teacher = teacherbool != null && teacherbool.booleanValue();
        } else
            this.teacher = false;

        // We will now parse the list of available circuits. This is a list containing
        // the names of available circuits. Their actual data is not included and needs to 
        // be requested separatedly.
        this.circuitsAvailable = new ArrayList<String>();
        if (circuitsList == null) {
        } else {
            JSONArray circuitsAvailableArray = circuitsList.isArray();

            for (int i = 0; i < circuitsAvailableArray.size(); ++i) {
                final JSONValue circuitName = circuitsAvailableArray.get(i);
                final String circuitNameStr = circuitName.isString().stringValue();
                this.circuitsAvailable.add(circuitNameStr);
            }
        }

    } catch (Throwable e) {
        return false;
    }

    return true;
}

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From source file:es.deusto.weblab.client.lab.comm.LabSerializerJSON.java

License:Open Source License

private String extractString(String data, String fieldName) throws SerializationException {
    try {/*from  w  w w. j av a2 s  .co m*/
        if (data == null)
            return null;
        final JSONValue value = JSONParser.parseStrict(data);
        if (value == JSONNull.getInstance()) {
            return null;
        }
        final JSONString stringValue = value.isString();
        if (stringValue == null)
            throw new SerializationException(
                    "Invalid " + fieldName + ": expected a string and found a " + value.getClass().getName());

        return stringValue.stringValue();
    } catch (final IllegalArgumentException e) {
        throw new SerializationException("Invalid " + fieldName + ": " + e.getMessage(), e);
    } catch (final JSONException e) {
        throw new SerializationException("Invalid " + fieldName + ": " + e.getMessage(), e);
    }
}

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From source file:es.deusto.weblab.client.ui.widgets.WlStreamImage.java

License:Open Source License

public void configureImageStream(JSONObject initialConfigObject) {
    final JSONValue webcamValue = initialConfigObject.get("webcam");
    if (webcamValue != null) {
        final String urlWebcam = webcamValue.isString().stringValue();
        setUrl(urlWebcam);//from   w w w. j a v  a  2 s. c  o m
    }

}

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From source file:es.deusto.weblab.client.ui.widgets.WlWebcam.java

License:Open Source License

public void configureWebcam(JSONObject initialConfigObject) {
    final JSONValue webcamValue = initialConfigObject.get("webcam");
    if (webcamValue != null) {
        final String urlWebcam = webcamValue.isString().stringValue();
        setUrl(urlWebcam);//  w w  w  .  j a  va  2s .c om
    }

    final JSONValue mjpegValue = initialConfigObject.get("mjpeg");
    if (mjpegValue != null) {
        final String mjpeg = mjpegValue.isString().stringValue();
        int width = 320;
        int height = 240;
        if (initialConfigObject.get("mjpegWidth") != null) {
            final JSONValue mjpegWidth = initialConfigObject.get("mjpegWidth");
            if (mjpegWidth.isNumber() != null) {
                width = (int) mjpegWidth.isNumber().doubleValue();
            } else if (mjpegWidth.isString() != null) {
                width = Integer.parseInt(mjpegWidth.isString().stringValue());
            }
        }
        if (initialConfigObject.get("mjpegHeight") != null) {
            final JSONValue mjpegHeight = initialConfigObject.get("mjpegHeight");
            if (mjpegHeight.isNumber() != null) {
                height = (int) mjpegHeight.isNumber().doubleValue();
            } else if (mjpegHeight.isString() != null) {
                height = Integer.parseInt(mjpegHeight.isString().stringValue());
            }
        }
        setStreamingUrl(mjpeg, width, height);
    }
}

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