Examples of org.json.JSONObject

org.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 coercion for you. The opt methods differ from the get methods in that they do not throw. Instead, they return a specified value, such as null.
The put methods add or replace values in 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 syntax 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.
@author JSON.org @version 2014-05-03

        new Coordinate(12.0, 34.23), new Coordinate(12.000, 54.555), new Coordinate(7, 8),
        new Coordinate(12.0, 34.23)});
    LinearRing ring = new LinearRing(coords, factory);
    Polygon p = new Polygon(ring, new LinearRing[] {}, factory);
    MultiPolygon m = new MultiPolygon(new Polygon[] {p}, factory);
    JSONObject jo = (JSONObject) ser.marshall(null, m);
    assertEquals("MultiPolygon", jo.get("type").toString());
    assertEquals("31300", jo.get("srid").toString());
    assertEquals("2", jo.get("precision").toString());
    JSONArray polygons = jo.getJSONArray("polygons");
    JSONObject polygon = polygons.getJSONObject(0);
    assertEquals("Polygon", polygon.get("type").toString());
    assertEquals("[]", polygon.get("holes").toString());
    assertEquals("31300", polygon.get("srid").toString());
    assertEquals("2", polygon.get("precision").toString());
    JSONObject shell = polygon.getJSONObject("shell");
    assertEquals("LineString", shell.get("type").toString());
    assertEquals("31300", shell.get("srid").toString());
    assertEquals("2", shell.get("precision").toString());
    assertEquals("[12,34.23,12,54.56,7,8,12,34.23]", shell.get("coordinates").toString());
  }

View Full Code Here

    GeometryFactory factory = new GeometryFactory(new PrecisionModel(100.0), 31300);
    CoordinateArraySequence coords = new CoordinateArraySequence(new Coordinate[] {
        new Coordinate(12.0, 34.23), new Coordinate(12.000, 54.555), new Coordinate(-0.01, -0.0)});
    LineString l = new LineString(coords, factory);
    MultiLineString m = new MultiLineString(new LineString[] {l}, factory);
    JSONObject jo = (JSONObject) ser.marshall(null, m);
    assertEquals("MultiLineString", jo.get("type").toString());
    assertEquals("31300", jo.get("srid").toString());
    assertEquals("2", jo.get("precision").toString());
    JSONArray lineStrings = jo.getJSONArray("lineStrings");
    JSONObject lineString = lineStrings.getJSONObject(0);
    assertEquals("LineString", lineString.get("type").toString());
    assertEquals("31300", lineString.get("srid").toString());
    assertEquals("2", lineString.get("precision").toString());
    assertEquals("[12,34.23,12,54.56,-0.01,0]", lineString.get("coordinates").toString());
  }

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  public void testPoint() throws MarshallException, GeomajasException {
    GeometryFactory factory = new GeometryFactory(new PrecisionModel(10000.0), 31300);
    CoordinateArraySequence coords = new CoordinateArraySequence(new Coordinate[] { new Coordinate(12.3456,
        34567.3456) });
    Point p = new Point(coords, factory);
    JSONObject jtsJson = (JSONObject) jtsSerializer.marshall(null, p);
    Geometry dto = converter.toDto(p);
    JSONObject dtoJson = (JSONObject) dtoSerializer.marshall(null, dto);
    Assert.assertEquals(jtsJson.toString(), dtoJson.toString());
  }

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  public void testLineString() throws MarshallException, GeomajasException {
    GeometryFactory factory = new GeometryFactory(new PrecisionModel(10000.0), 31300);
    CoordinateArraySequence coords = new CoordinateArraySequence(new Coordinate[] { new Coordinate(12.0, 34.23),
        new Coordinate(12.000, 54.555), new Coordinate(-0.01, 0.0) });
    LineString p = new LineString(coords, factory);
    JSONObject jtsJson = (JSONObject) jtsSerializer.marshall(null, p);
    Geometry dto = converter.toDto(p);
    JSONObject dtoJson = (JSONObject) dtoSerializer.marshall(null, dto);
    Assert.assertEquals(jtsJson.toString(), dtoJson.toString());
  }

View Full Code Here

        new Coordinate(12.000, 54.555), new Coordinate(7, 8), new Coordinate(12.0, 34.23) });
    LinearRing ring = new LinearRing(coords, factory);
    Polygon p = new Polygon(ring, null, factory);
    Geometry dto = converter.toDto(p);


    JSONObject jtsJson = (JSONObject) jtsSerializer.marshall(null, p);
    JSONObject dtoJson = (JSONObject) dtoSerializer.marshall(null, dto);
    Assert.assertEquals(jtsJson.toString().length(), dtoJson.toString().length());
    Assert.assertEquals(jtsJson.get("type").toString(), dtoJson.get("type").toString());
    Assert.assertEquals(jtsJson.get("holes").toString(), dtoJson.get("holes").toString());
    Assert.assertEquals(jtsJson.get("srid").toString(), dtoJson.get("srid").toString());
    Assert.assertEquals(jtsJson.get("precision").toString(), dtoJson.get("precision").toString());


    JSONObject jtsShell = jtsJson.getJSONObject("shell");
    JSONObject dtoShell = dtoJson.getJSONObject("shell");
    Assert.assertEquals(jtsShell.get("type").toString(), dtoShell.get("type").toString());
    Assert.assertEquals(jtsShell.get("srid").toString(), dtoShell.get("srid").toString());
    Assert.assertEquals(jtsShell.get("precision").toString(), dtoShell.get("precision").toString());
    Assert.assertEquals(jtsShell.get("coordinates").toString(), dtoShell.get("coordinates").toString());
  }

View Full Code Here

    LinearRing ring = new LinearRing(coords, factory);
    Polygon p = new Polygon(ring, new LinearRing[] {}, factory);
    MultiPolygon m = new MultiPolygon(new Polygon[] { p }, factory);
    Geometry dto = converter.toDto(m);


    JSONObject jtsJson = (JSONObject) jtsSerializer.marshall(null, m);
    JSONObject dtoJson = (JSONObject) dtoSerializer.marshall(null, dto);
    Assert.assertEquals(jtsJson.toString().length(), dtoJson.toString().length());
    Assert.assertEquals(jtsJson.get("type").toString(), dtoJson.get("type").toString());
    Assert.assertEquals(jtsJson.get("srid").toString(), dtoJson.get("srid").toString());
    Assert.assertEquals(jtsJson.get("precision").toString(), dtoJson.get("precision").toString());


    JSONObject jtsPolygon = jtsJson.getJSONArray("polygons").getJSONObject(0);
    JSONObject dtoPolygon = dtoJson.getJSONArray("polygons").getJSONObject(0);
    Assert.assertEquals(jtsPolygon.get("type").toString(), dtoPolygon.get("type").toString());
    Assert.assertEquals(jtsPolygon.get("holes").toString(), dtoPolygon.get("holes").toString());
    Assert.assertEquals(jtsPolygon.get("srid").toString(), dtoPolygon.get("srid").toString());
    Assert.assertEquals(jtsPolygon.get("precision").toString(), dtoPolygon.get("precision").toString());


    JSONObject jtsShell = jtsPolygon.getJSONObject("shell");
    JSONObject dtoShell = dtoPolygon.getJSONObject("shell");
    Assert.assertEquals(jtsShell.get("type").toString(), dtoShell.get("type").toString());
    Assert.assertEquals(jtsShell.get("srid").toString(), dtoShell.get("srid").toString());
    Assert.assertEquals(jtsShell.get("precision").toString(), dtoShell.get("precision").toString());
    Assert.assertEquals(jtsShell.get("coordinates").toString(), dtoShell.get("coordinates").toString());
  }

View Full Code Here

    GeometryFactory factory = new GeometryFactory(new PrecisionModel(10000.0), 31300);
    CoordinateArraySequence coords = new CoordinateArraySequence(new Coordinate[] { new Coordinate(12.0, 34.23),
        new Coordinate(12.000, 54.555), new Coordinate(-0.01, 0.0) });
    LineString l = new LineString(coords, factory);
    MultiLineString m = new MultiLineString(new LineString[] { l }, factory);
    JSONObject jtsJson = (JSONObject) jtsSerializer.marshall(null, m);
    Geometry dto = converter.toDto(m);
    JSONObject dtoJson = (JSONObject) dtoSerializer.marshall(null, dto);
    Assert.assertEquals(jtsJson.toString(), dtoJson.toString());
  }

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  public void setHighLightingEnabled(boolean enabled) {
    myContent.contextPut("highlight", Boolean.valueOf(enabled));
  }


  public MediaResource extractMediaResource(boolean wrapHTML) {
    JSONObject json = getAndClearJSON();
    String res;
    String jsonText = json.toString();
    //System.out.println("jsontext:"+jsonText);
    if (wrapHTML) {
      // most ajax responses are a lot smaller than 16k
      StringBuffer sb = new StringBuffer(16384);
      sb.append("<html><head><script type=\"text/javascript\">\n/* <![CDATA[ */\nfunction invoke(){var r=")
        .append(jsonText).append("; ") 
        .append("if (parent!=self&&parent.window.o_info){")
        .append("parent.window.o_ainvoke(r);")
          // normal case: ajax result can be delivered into the hidden iframe.
          // else: no parent frame or parent frame is not olat -> reasons:
          // a) mouse-right-click to open in new tab/window
          // b) fast double-click when target causes a 302 and browser's window's document has been updated, but old link was still clickable
          // c) ...
          // -> in all cases, do not show the json command, but reload the window which contained the link clicked (= window id of url)
          
        .append("} else {") 
          // inform user that ajax-request cannot be opened in a new window,
          // todo felix: maybe send back request to bookmark-launch current url? -> new window?
          // we could then come near to what the user probably wanted when he/she opened a link in a new window
        .append("this.document.location=\"")
        .append(StaticMediaDispatcher.createStaticURIFor("msg/json/en/info.html"))
        .append("\";")
          //.append("window.open(self.location+\"?o_win_jsontop=1\"); this.close();")
          //.append("this.document.location=self.location+\"?o_win_jsontop=1\";")
        .append("}}")
        .append("\n/* ]]> */\n</script></head><body onLoad=\"invoke()\">");
          if (showJSON) {
            try {
              sb.append("<pre style=\"font-size:12px;\">len:").append(jsonText.length()).append(":\n").append(StringEscapeUtils.escapeHtml(json.toString(2))).append("</pre>");
            } catch (JSONException e) {
              sb.append("error while prettyprinting json for debug mode: ").append(e.getMessage());
            }
          }
          sb.append("</body></html>");

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  private JSONObject createJSON(WindowCommand wc) {
    Command c = wc.getCommand();
    WindowBackOffice wbo = wc.getWindowBackOffice();
    long winId = wbo.getWindow().getDispatchID();
    JSONObject jo = new JSONObject();
    try {
      jo.put("cmd", c.getCommand());
      jo.put("w", winId);
      jo.put("cda", c.getSubJSON());
      return jo;
    } catch (JSONException e) {
      throw new AssertException("json exception:", e);
    }
  }

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  /**
   * @param moreCmds a List of WindowCommand objects
   * @return
   */
  private JSONObject getAndClearJSON() {
    JSONObject root = new JSONObject();
    


    try {
      if (Settings.isDebuging()) {
        long time = System.currentTimeMillis();
        root.put("time", time);
      }
      synchronized (windowcommands) { //o_clusterOK by:fj
        // handle all windowcommands now, create json
        int sum = windowcommands.size();
        root.put("cmdcnt", sum); // number of commands: 0..n
        if (sum > 0) {
          JSONArray ja = new JSONArray();
          root.put("cmds", ja);
          // treat commands waiting for the poll
          for (int i = 0; i < sum; i++) {
            WindowCommand wc = windowcommands.get(i);
            JSONObject jo = createJSON(wc);
            ja.put(jo);
          }
          windowcommands.clear();
        }

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