Examples of org.apache.tapestry.json.JSONObject

org.apache.tapestry.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.
The constructor can convert an external form string into an internal form Java object. The toString() method creates an external form string.
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 texts produced by the toString() methods are very strict. 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 ; as well as by ,
- Numbers may have the 0- (octal) or 0x- (hex) prefix.
- Line comments can begin with #
@author JSON.org @version 1

    public void test_Render_Contribution()
    {
        NumberTranslator translator = new NumberTranslator();
        IFormComponent field = newField("Number Field", "numberField", 1);
        
        JSONObject json = new JSONObject();
        
        IMarkupWriter writer = newWriter();
        IRequestCycle cycle = newCycle();
        
        FormComponentContributorContext context = newMock(FormComponentContributorContext.class);
        
        expect(context.getProfile()).andReturn(json);
        context.addInitializationScript(field, "dojo.require(\"dojo.i18n.number\");");
        
        trainGetLocale(context, Locale.ENGLISH);
        
        trainBuildMessage(context, null, ValidationStrings.INVALID_NUMBER, 
                new Object[] { "Number Field", "#" }, "invalid number message");
        
        replay();
        
        translator.renderContribution(writer, cycle, context, field);
        
        verify();
        
        assertEquals(json.toString(),
                "{\"constraints\":{\"numberField\":" +
                "[[dojo.i18n.number.isReal,null,{places:0,decimal:\".\",separator:\"\"}]]}," +
                "\"numberField\":{\"constraints\":[\"invalid number message\"]}}");
    }

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    {
        NumberTranslator translator = new NumberTranslator();
        translator.setPattern("###,##");
        IFormComponent field = newField("Number Field", "numberField", 1);


        JSONObject json = new JSONObject();


        IMarkupWriter writer = newWriter();
        IRequestCycle cycle = newCycle();


        FormComponentContributorContext context = newMock(FormComponentContributorContext.class);


        expect(context.getProfile()).andReturn(json);
        context.addInitializationScript(field, "dojo.require(\"dojo.i18n.number\");");


        trainGetLocale(context, Locale.US);


        trainBuildMessage(context, null, ValidationStrings.INVALID_NUMBER, new String[] { "Number Field", "#,##" },
                          "invalid number message");


        replay();


        translator.renderContribution(writer, cycle, context, field);


        verify();


        assertEquals(json.toString(),
                "{\"constraints\":{\"numberField\":" +
                "[[dojo.i18n.number.isReal,null," +
                "{places:0,decimal:\".\",separator:\",\",groupSize:2}]]}," +
                "\"numberField\":{\"constraints\":[\"invalid number message\"]}}");
    }

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        String messageOverride = "You entered a bunk value for {0}. I should look like {1}. Watch out for ''this''!";


        IMarkupWriter writer = newWriter();
        IRequestCycle cycle = newCycle();
        
        JSONObject json = new JSONObject();
        
        FormComponentContributorContext context = newMock(FormComponentContributorContext.class);


        expect(context.getProfile()).andReturn(json);
        context.addInitializationScript(field, "dojo.require(\"dojo.i18n.number\");");
        
        trainGetLocale(context, Locale.ENGLISH);
        
        trainBuildMessage(
                context,
                messageOverride,
                ValidationStrings.INVALID_NUMBER,
                new Object[] { "Number Field", "#" },
                "Blah Blah 'Field Name' Blah.");
        
        replay();
        
        translator.setMessage(messageOverride);


        translator.renderContribution(writer, cycle, context, field);
        
        verify();
        
        assertEquals(json.toString(),
                "{\"constraints\":{\"myfield\":[[dojo.i18n.number.isReal,null," +
                "{places:0,decimal:\".\",separator:\"\"}]]}," +
                "\"myfield\":{\"constraints\":[\"Blah Blah 'Field Name' Blah.\"]}}");
    }

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    public void test_Trim_Render_Contribution()
    {
        IFormComponent field = newField("Number Field", "myfield", 2);
        
        NumberTranslator translator = new NumberTranslator();
        JSONObject json = new JSONObject();
        
        IMarkupWriter writer = newWriter();
        IRequestCycle cycle = newCycle();
        
        FormComponentContributorContext context = newMock(FormComponentContributorContext.class);
        
        expect(context.getProfile()).andReturn(json);
        context.addInitializationScript(field, "dojo.require(\"dojo.i18n.number\");");
        
        trainGetLocale(context, Locale.ENGLISH);
        
        trainBuildMessage(context, null, ValidationStrings.INVALID_NUMBER, new Object[]
        { "Number Field", "#" }, "invalid number message");
        
        expect(context.getProfile()).andReturn(json);
        
        replay();


        translator.setTrim(true);
        
        translator.renderContribution(writer, cycle, context, field);
        
        verify();
        
        assertEquals(json.toString(),
                "{\"trim\":[\"myfield\"]," +
                "\"constraints\":{\"myfield\":[[dojo.i18n.number.isReal,null," +
                "{places:0,decimal:\".\",separator:\"\"}]]}," +
                "\"myfield\":{\"constraints\":[\"invalid number message\"]}}");
    }

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     */
    public static JSONObject parseJSONParameter(IComponent component, String parameterName)
    {
        IBinding binding = component.getBinding(parameterName);
        if (binding == null || binding.getObject() == null)
            return new JSONObject();
        
        try
        {
            return new JSONObject((String) binding.getObject(String.class));
        }
        catch (ParseException ex)
        {
            throw new ApplicationRuntimeException( DojoMessages.mustUseValidJsonInParameter(parameterName), 
                    binding.getLocation() , ex);

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     */
    public void render(IMarkupWriter writer, IRequestCycle cycle)
    {
        // first configure dojo, has to happen before package include


        JSONObject dojoConfig = new JSONObject();


        // Debugging configuration , debugAtAlCosts causes the individual 
        // .js files to included in the document head so that javascript errors
        // are able to resolve to the context of the file instead of just "dojo.js"


        if (_debug)
        {
            dojoConfig.put("isDebug", _debug);
        }


        if (_debugAtAllCosts)
            dojoConfig.put("debugAtAllCosts", _debugAtAllCosts);
        if (_debugContainerId != null)
            dojoConfig.put("debugContainerId", _debugContainerId);


        IPage page = cycle.getPage();


        // The key to resolving everything out of the asset service


        dojoConfig.put("baseRelativePath", _dojoPath.buildURL());


        if (page.hasFormComponents())
        {
            dojoConfig.put("preventBackButtonFix", _preventBackButtonFix);
        }
        dojoConfig.put("parseWidgets", _parseWidgets);


        // Supports setting up locale in dojo environment to match the requested page locale.
        // (for things that use these settings, like DropdownDatePicker / date parsing / etc..


        Locale locale = cycle.getPage().getLocale();


        String localeStr = locale.getLanguage().toLowerCase()
                           + ((locale.getCountry() != null && locale.getCountry().trim().length() > 0)
                              ? "-" + locale.getCountry().toLowerCase()
                              : "");


        if (isLocaleSupported(localeStr))
        {
            dojoConfig.put("locale", localeStr);
        }


        // Write the required script includes and dojo.requires


        StringBuffer str = new StringBuffer("<script type=\"text/javascript\">");
        str.append("djConfig = ").append(dojoConfig.toString())
          .append(" </script>")
          .append(SYSTEM_NEWLINE).append(SYSTEM_NEWLINE);


        // include the core dojo.js package

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        renderDelegateSuffix(writer, cycle);
        
        Map parms = new HashMap();
        parms.put("id", getClientId());
        
        JSONObject json = new JSONObject();
        if (!isLocal())
        {
            ILink link = getDirectService().getLink(true, new DirectServiceParameter(this));
            json.put("dataUrl", link.getURL() + "&filter=%{searchString}");
        }
        
        json.put("mode", isLocal() ? MODE_LOCAL : MODE_REMOTE);
        json.put("widgetId", getName());
        json.put("name", getName());
        json.put("searchDelay", getSearchDelay());
        json.put("fadeTime", getFadeTime());
        json.put("maxListLength", getMaxListLength());
        json.put("forceValidOption", isForceValidOption());
        json.put("disabled", isDisabled());
        
        json.put("value", key != null ? getDataSqueezer().squeeze(key) : "");
        json.put("label", value != null ? model.getLabelFor(value) : "");
        
        parms.put("props", json.toString());
        parms.put("form", getForm().getName());
        parms.put("widget", this);
        
        PageRenderSupport prs = TapestryUtils.getPageRenderSupport(cycle, this);
        getScript().execute(this, cycle, prs, parms);

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        if (!cycle.isRewinding())
            writer.end();
        
        if (!cycle.isRewinding())
        {
            JSONObject json = new JSONObject();
            json.put("bgColor", getBackgroundColor());
            json.put("bgOpacity", getOpacity());
            json.put("followScroll", getFollowScroll());
            json.put("closeOnBackgroundClick", getCloseOnBackgroundClick());
            json.put("blockDuration", getBlockDuration());
            json.put("lifeTime", getLifeTime());
            json.put("toggle", getToggle());
            json.put("toggleDuration", getToggleDuration());


            Map parms = new HashMap();
            parms.put("component", this);
            parms.put("props", json.toString());
            
            getScript().execute(this, cycle, TapestryUtils.getPageRenderSupport(cycle, this), parms);
        }
    }

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            return;
        
        Object key = null;
        String label = null;
        
        JSONObject json = writer.object();
        
        for (int i=0; i < filteredValues.size(); i++) {
            Object value = filteredValues.get(i);
            
            key = model.getPrimaryKey(value);
            label = model.getLabelFor(value);
            
            json.put(getDataSqueezer().squeeze(key), label );
        }
        
    }

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        optStr.append("]");
        
        // now create widget parms


        JSONObject json = new JSONObject();
        json.put("inputNodeId", getClientId());
        json.put("optionValues", new JSONLiteral(optStr.toString()));


        if (selectedIndex > -1)
        {
            json.put("selectedIndex", selectedIndex);
        }


        Map parms = new HashMap();
        parms.put("clientId", getClientId());
        parms.put("props", json.toString());
        parms.put("widget", this);


        getScript().execute(this, cycle, TapestryUtils.getPageRenderSupport(cycle, this), parms);
    }

View Full Code Here

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