Java 类freemarker.template.SimpleNumber 实例源码

protected Map getComplexParams(Map params) {
    HashMap map = new HashMap(params.size());
    for (Iterator iterator = params.entrySet().iterator(); iterator.hasNext();) {
        Map.Entry entry = (Map.Entry) iterator.next();
        Object value = entry.getValue();
        if (value != null && complexType(value)) {
            if (value instanceof freemarker.ext.beans.BeanModel) {
                map.put(entry.getKey(), ((freemarker.ext.beans.BeanModel) value).getWrappedObject());
            } else if (value instanceof SimpleNumber) {
                map.put(entry.getKey(), ((SimpleNumber) value).getAsNumber());
            } else if (value instanceof SimpleSequence) {
                try {
                    map.put(entry.getKey(), ((SimpleSequence) value).toList());
                } catch (TemplateModelException e) {
                    if (LOG.isErrorEnabled()) {
                        LOG.error("There was a problem converting a SimpleSequence to a list", e);
                    }
                }
            }
        }
    }
    return map;
}

@SuppressWarnings("rawtypes")
@Override
public void execute(Environment env, Map params, TemplateModel[] loopVars, TemplateDirectiveBody body)
    throws TemplateException, IOException {
    try {
        SimpleNumber pFor = (SimpleNumber) params.get("for");

        Number forMillis = null;

        if (pFor != null) {
            forMillis = pFor.getAsNumber();

            try {
                Thread.sleep(forMillis.longValue());
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    } catch (Throwable t) {
        t.printStackTrace();
    }
}

@Override
public Object exec(@SuppressWarnings("rawtypes") List arguments) throws TemplateModelException {
    testAtLeastOneArgument(arguments);
    String value = readValue(arguments.get(0));
    MessageFormat formatter = new MessageFormat(value, bundle.getLocale());
    if (arguments.size() == 1) {
        value = formatter.format(new Object[] {});
    } else {
        List<Object> parameters = new ArrayList<>();
        for (Object obj : arguments.subList(1, arguments.size())) {
            if (obj instanceof SimpleNumber) {
                parameters.add(((SimpleNumber) obj).getAsNumber());
            } else if (obj instanceof SimpleDate) {
                parameters.add(((SimpleDate) obj).getAsDate());
            } else {
                parameters.add(obj.toString());
            }
        }
        value = formatter.format(parameters.toArray(), new StringBuffer(), null).toString();
    }
    return value;
}

@Override
@SuppressWarnings("unchecked")
public Object exec(List list) throws TemplateModelException {
    if (list.size() != 2) {
        throw new TemplateModelException("Wrong number of arguments for method isAssignableFrom()."
                + " Method has two required parameters: [Class, SimpleNumber]. Found: " + list.size());
    }

    Object arg1 = ((WrapperTemplateModel) list.get(0)).getWrappedObject();
    if (!(arg1 instanceof Method)) {
        throw new TemplateModelException("Wrong type of the first parameter."
                + " It should be Method. Found: " + arg1.getClass());
    }

    Object arg2 = list.get(1);
    if (!(arg2 instanceof SimpleNumber)) {
        throw new TemplateModelException("Wrong type of the second parameter."
                + " It should be SimpleNumber. Found: " + arg2.getClass());
    }

    return timeStepModel.hasStartNanosAnnotation((Method) arg1, ((SimpleNumber) arg2).getAsNumber().intValue() - 1);
}

@Override
public Object exec(List arguments) throws TemplateModelException
{
    ExecutionStatistics.get().begin(NAME);
    if (arguments.size() < 1)
    {
        throw new TemplateModelException("Error, method expects one or two arguments (Integer, [verbosity:String])");
    }
    SimpleNumber simpleNumber = (SimpleNumber) arguments.get(0);
    int effort = simpleNumber.getAsNumber().intValue();

    Verbosity verbosity = Verbosity.SHORT;
    if (arguments.size() > 1)
    {
        final TemplateScalarModel verbosityModel = (TemplateScalarModel) arguments.get(1);
        String verbosityString = verbosityModel.getAsString();
        verbosity = Verbosity.valueOf(verbosityString.toUpperCase());
    }

    String result = EffortReportService.getEffortLevelDescription(verbosity, effort);

    ExecutionStatistics.get().end(NAME);
    return result;
}

@Override
public Object exec(@SuppressWarnings("rawtypes") List arguments) throws TemplateModelException
{
    if (arguments.size() != 1)
    {
        throw new TemplateModelException("Error, method expects one argument (int)");
    }
    SimpleNumber freemarkerArg = (SimpleNumber) arguments.get(0);
    int effortPoints = freemarkerArg.getAsNumber().intValue();
    if (effortPoints == 0)
        return "info";
    else if (effortPoints < 8)
        return "warning";
    else if (effortPoints < 14)
        return "severe";
    else
        return "critical";
}

@Override
public TemplateModel get(String s) throws TemplateModelException {
    if (METHOD_DAYS.equalsIgnoreCase(s)) {
        return new SimpleNumber(getObject().getDays());
    } else if (METHOD_MONTHS.equalsIgnoreCase(s)) {
        return new SimpleNumber(getObject().getMonths());
    } else if (METHOD_YEARS.equalsIgnoreCase(s)) {
        return new SimpleNumber(getObject().getYears());
    }
    throw new TemplateModelException(METHOD_UNKNOWN_MSG + s);
}

@Override
public TemplateModel get(String s) throws TemplateModelException {
    if (METHOD_NANO.equalsIgnoreCase(s)) {
        return new SimpleNumber(getObject().getNano());
    } else if (METHOD_SECONDS.equalsIgnoreCase(s)) {
        return new SimpleNumber(getObject().getSeconds());
    }
    throw new TemplateModelException(METHOD_UNKNOWN_MSG + s);
}

@SuppressWarnings("unchecked")
public Object exec(List arguments) throws TemplateModelException {
  TemplateModel model = (TemplateModel) arguments.get(0);
  if (model instanceof SimpleNumber) {
    SimpleNumber number = (SimpleNumber) model;
    return "" + number;
  } else if (model instanceof BeanModel) {
    BeanModel arg0 = (BeanModel) model;
    Cost cost = (Cost) arg0.getAdaptedObject(Cost.class);
    return "Cost: " + costModel.computeOverall(cost) + " [" + cost + "]";
  } else {
    throw new IllegalStateException();
  }
}

@SuppressWarnings("unchecked")
public Object exec(List arguments) throws TemplateModelException {
  TemplateModel model = (TemplateModel) arguments.get(0);
  if (model instanceof SimpleNumber) {
    SimpleNumber number = (SimpleNumber) model;
    return number;
  } else if (model instanceof BeanModel) {
    BeanModel arg0 = (BeanModel) model;
    Cost cost = (Cost) arg0.getAdaptedObject(Cost.class);
    return costModel.computeOverall(cost);
  } else {
    throw new IllegalStateException();
  }
}

public static Integer getInt(Map params, String paramName){
    SimpleNumber valueModel=(SimpleNumber)params.get(paramName);
    if (valueModel!=null){
        int value=valueModel.getAsNumber().intValue();
        return value;
    }
    return null;
}

public static Long getLong(Map params, String paramName){
    SimpleNumber valueModel=(SimpleNumber)params.get(paramName);
    if (valueModel!=null){
        Long value=valueModel.getAsNumber().longValue();
        return value;
    }
    return null;
}

public static BigDecimal getBigDecimal(Map params, String paramName){
    SimpleNumber valueModel=(SimpleNumber)params.get(paramName);
    if (valueModel!=null){
        if (valueModel.getAsNumber() instanceof BigDecimal){
            return (BigDecimal)valueModel.getAsNumber();
        }
        return new BigDecimal(valueModel.getAsNumber().doubleValue());
    }
    return null;
}

@SuppressWarnings("unchecked")
public String getStringArg(Map args, String key) {
    Object o = args.get(key);
    if (o instanceof SimpleScalar) {
        return ((SimpleScalar) o).getAsString();
    } else if (o instanceof StringModel) {
        return ((StringModel) o).getAsString();
    } else if (o instanceof SimpleNumber) {
        return ((SimpleNumber) o).getAsNumber().toString();
    } else if (o instanceof NumberModel) {
        return ((NumberModel) o).getAsNumber().toString();
    }
    return null;
}

@SuppressWarnings("unchecked")
public String getStringArg(Map args, String key) {
    Object o = args.get(key);
    if (o instanceof SimpleScalar) {
        return ((SimpleScalar) o).getAsString();
    } else if (o instanceof StringModel) {
        return ((StringModel) o).getAsString();
    } else if (o instanceof SimpleNumber) {
        return ((SimpleNumber) o).getAsNumber().toString();
    } else if (o instanceof NumberModel) {
        return ((NumberModel) o).getAsNumber().toString();
    }
    return null;
}

@SuppressWarnings("unchecked")
public String getStringArg(Map args, String key) {
    Object o = args.get(key);
    if (o instanceof SimpleScalar) {
        return ((SimpleScalar) o).getAsString();
    } else if (o instanceof StringModel) {
        return ((StringModel) o).getAsString();
    } else if (o instanceof SimpleNumber) {
        return ((SimpleNumber) o).getAsNumber().toString();
    } else if (o instanceof NumberModel) {
        return ((NumberModel) o).getAsNumber().toString();
    }
    return null;
}

@SuppressWarnings("unchecked")
public String getStringArg(Map args, String key) {
    Object o = args.get(key);
    if (o instanceof SimpleScalar) {
        return ((SimpleScalar) o).getAsString();
    } else if (o instanceof StringModel) {
        return ((StringModel) o).getAsString();
    } else if (o instanceof SimpleNumber) {
        return ((SimpleNumber) o).getAsNumber().toString();
    } else if (o instanceof NumberModel) {
        return ((NumberModel) o).getAsNumber().toString();
    }
    return null;
}

@Override
public Object exec(@SuppressWarnings("rawtypes") List arguments) throws TemplateModelException {
    testExactlyOneArgument(arguments);

    Object arg = arguments.get(0);
    testArgumentIsNumber(arg);
    long millis = ((SimpleNumber) arg).getAsNumber().longValue();
    long hrs = TimeUnit.MILLISECONDS.toHours(millis);
    long min = TimeUnit.MILLISECONDS.toMinutes(millis) % MINUTES_PER_HOUR;
    long sec = TimeUnit.MILLISECONDS.toSeconds(millis) % SECONDS_PER_MINUTES;
    return String.format("%02d:%02d:%02d", hrs, min, sec);
}

protected void testArgumentIsNumber(Object arg) throws TemplateModelException {
    if (!(arg instanceof SimpleNumber)) {
        String message = "Argument (%s) must be a number.";
        message = String.format(message, arg);
        throw new TemplateModelException(message);
    }
}

@Test
public void testParamTranslation() throws TemplateModelException, ParseException {
    ResourceBundle bundle = new SimpleBundle("foo", "bar {0} {1} {2}");
    FreemarkerMessageMethod method = new FreemarkerMessageMethod(bundle);
    SimpleNumber simpleNumber = new SimpleNumber(1234567);
    Date date = new Date(new SimpleDateFormat("yyyy-MM-dd hh:mm").parse("2014-03-14 13:11").getTime());
    SimpleDate simpleDate = new SimpleDate(date);
    assertEquals("bar baz 1,234,567 3/14/14 1:11 PM", method.exec(Arrays.asList("foo", "baz", simpleNumber, simpleDate)));
}

@Test
public void testDurationFormat() throws TemplateModelException {
    long hours = 1 * 60 * 60 * 1000;
    long minutes = 2 * 60 * 1000;
    long seconds = 3 * 1000;
    SimpleNumber duration = new SimpleNumber(hours + minutes + seconds);
    assertEquals("01:02:03", new FreemarkerDurationMethod().exec(Arrays.asList(duration)).toString());
}

@Override
public Object exec(@SuppressWarnings("rawtypes") List arguments) throws TemplateModelException
{
    if (arguments.size() < 2)
        throw new TemplateModelException(NAME + ": Expected 2 arguments, count and maximum count.");

    if (!(arguments.get(0) instanceof TemplateNumberModel))
        throw new TemplateModelException(NAME + ": Both arguments must be numbers, but the first was " + arguments.get(0).getClass().getName());
    if (!(arguments.get(1) instanceof TemplateNumberModel))
        throw new TemplateModelException(NAME + ": Both arguments must be numbers, but the second was " + arguments.get(1).getClass().getName());

    int count = ((TemplateNumberModel) arguments.get(0)).getAsNumber().intValue();
    if (count < 1)
        return new SimpleNumber(0);

    int maximum = ((TemplateNumberModel) arguments.get(1)).getAsNumber().intValue();
    if (maximum < 0)
        throw new TemplateModelException(NAME + "Maximum must be at least 0, " + maximum);

    if (count > maximum)
    {
        LOG.severe("Count " + count + " is larger than maximum " + maximum + ". Using the maximum as count.");
        count = maximum;
    }

    double ratio = ((double)count) / ((double)maximum + QUITE_A_LOT_FACTOR); //  <0..1>

    // Map it to scale 1..1000.
    double ratio2 = 1.0d + ratio * (998d * (1-FLATTENER));
    double log10 = Math.log10(ratio2) / 3D;    // 0..2.999  =>  0..0.999
    //LOG.info(String.format("count: %d, max: %d, ratio %f, ratio2 %f, log10 %f", count, maximum, ratio, ratio2, log10));
    return new NumberModel(Double.valueOf(log10), new DefaultObjectWrapper());
}

private int getInt(Object val)
{
    return ((SimpleNumber) val).getAsNumber().intValue();
}

protected boolean complexType(Object value) {
    return value instanceof freemarker.ext.beans.BeanModel
            || value instanceof SimpleNumber
            || value instanceof SimpleSequence;
}

@SuppressWarnings({ "rawtypes", "deprecation" })
@Override
public void execute(Environment env, Map params, TemplateModel[] loopVars, TemplateDirectiveBody body)
    throws TemplateException, IOException {
    if (log.isTraceEnabled()) {
        log.trace(params);
    }

    SimpleNumber width = (SimpleNumber) params.get("width");
    SimpleNumber height = (SimpleNumber) params.get("height");
    SimpleScalar uri = (SimpleScalar) params.get("uri");
    SimpleScalar var = (SimpleScalar) params.get("var");
    BeanModel pSource = (BeanModel) params.get("src");
    TemplateBooleanModel pParent = (TemplateBooleanModel) params.get("parent");

    if (pSource != null && uri != null)
        throw new IllegalArgumentException("The parameters 'src' and 'uri' cannot be set at the same time.");

    if (pSource == null && uri == null)
        throw new IllegalArgumentException("You must provide either a 'src' or 'uri' parameter.");

    Product product = null;
    String uriStr = null;
    boolean fallbackToParent = false;

    if (pParent != null) {
        fallbackToParent = pParent.getAsBoolean();
    }

    if (pSource != null) {

        if (!(pSource instanceof BeanModel))
            throw new IllegalArgumentException("The parameter 'src' must be of type BeanModel (Product)");

        Object beanModel = ((BeanModel) pSource).getWrappedObject();

        if (beanModel instanceof Product) {
            product = (Product) beanModel;

            if (product.getMainImage() != null) {
                uriStr = product.getMainImage().getPath();
            }

            if (uriStr == null && product.isVariant() && fallbackToParent) {
                Product parent = product.getParent();

                if (parent != null && parent.getMainImage() != null) {
                    uriStr = parent.getMainImage().getPath();
                }
            }
        } else {
            throw new IllegalArgumentException("The source-object must be of type Product");
        }
    }

    if (uri != null || uriStr != null) {
        if (uri != null) {
            uriStr = uri.getAsString();
        }

        String varStr = null;

        if (var != null)
            varStr = var.getAsString();

        if (!Str.isEmpty(uriStr)) {
            String mediaAssetURL = catalogMediaHelper.toMediaAssetURL(uriStr,
                width == null ? null : width.getAsNumber().intValue(),
                height == null ? null : height.getAsNumber().intValue());

            if (varStr != null) {
                env.setVariable(varStr, DefaultObjectWrapper.getDefaultInstance().wrap(mediaAssetURL));
            } else {
                env.getOut().write(mediaAssetURL);
            }
        }
    }
}

@Override
public void execute(Environment env, Map params, TemplateModel[] loopVars, TemplateDirectiveBody body)
    throws TemplateException, IOException {
    TemplateModel pItem = (TemplateModel) params.get("item");
    SimpleScalar pVar = (SimpleScalar) params.get("var");

    App app = App.get();
    List<NavigationItem> navItems = app.registryGet(NavigationConstant.NAV_ITEMS);
    List<Id> navItemIds = app.registryGet(NavigationConstant.NAV_ITEM_IDS);

    boolean isActive = false;
    String var = null;

    if (pVar != null)
        var = pVar.getAsString();

    if (pItem != null && navItems != null) {
        Object navItem = null;

        if (pItem instanceof SimpleScalar) {
            navItem = ((SimpleScalar) pItem).getAsString();
        } else if (pItem instanceof SimpleNumber) {
            navItem = Id.valueOf(((SimpleNumber) pItem).getAsNumber());
        } else if (pItem instanceof StringModel) {
            navItem = ((StringModel) pItem).getWrappedObject();
        } else {
            navItem = DeepUnwrap.unwrap(pItem);
        }

        if (navItem instanceof String) {
            for (NavigationItem navigationItem : navItems) {
                if ((navigationItem.getLabel() != null
                    && Str.trimEqualsIgnoreCase((String) navItem, navigationItem.getLabel().str()))
                    || Str.trimEqualsIgnoreCase((String) navItem, navigationItem.getDisplayURI())) {
                    isActive = true;
                    break;
                }
            }
        } else if (navItem instanceof Id) {
            isActive = navItemIds.contains(navItem);
        } else if (navItem instanceof NavigationItem) {
            isActive = navItemIds.contains(((NavigationItem) navItem).getId());
        }
    }

    if (isActive && Str.isEmpty(var)) {
        body.render(env.getOut());
    } else {
        env.setVariable(var, DefaultObjectWrapper.getDefaultInstance().wrap(isActive));
    }
}

@SuppressWarnings("rawtypes")
@Override
public void execute(Environment env, Map params, TemplateModel[] loopVars, TemplateDirectiveBody body)
    throws TemplateException, IOException {
    if (log.isTraceEnabled()) {
        log.trace(params);
    }

    SimpleScalar pType = (SimpleScalar) params.get("type");
    TemplateModel pId = (TemplateModel) params.get("id");
    SimpleScalar pVar = (SimpleScalar) params.get("var");

    String type = null;
    String varName = null;

    if (pType != null)
        type = pType.getAsString();

    if (pVar != null)
        varName = pVar.getAsString();

    if (pId != null && !Str.isEmpty(type)) {
        Object beanModel = null;

        if (pId instanceof SimpleScalar)
            beanModel = ((SimpleScalar) pId).getAsString();

        if (pId instanceof SimpleNumber)
            beanModel = ((SimpleNumber) pId).getAsNumber();

        else if (pId instanceof StringModel)
            beanModel = ((StringModel) pId).getAsString();

        else if (pId instanceof NumberModel)
            beanModel = ((NumberModel) pId).getAsNumber();

        else if (pId instanceof BeanModel)
            beanModel = ((BeanModel) pId).getWrappedObject();

        Id id = Id.valueOf(beanModel);

        Class<? extends Model> modelClass = Models.findBy(type);

        if (modelClass != null) {
            Object obj = restService.get(modelClass, id);

            if (obj != null)
                env.setVariable(Str.isEmpty(varName) ? modelClass.getSimpleName() : varName,
                    DefaultObjectWrapper.getDefaultInstance().wrap(obj));
        }
    }
}

@SuppressWarnings("rawtypes")
private static void check(String s, int max, String expected) throws TemplateModelException {
  FmTruncateStringMethod method = new FmTruncateStringMethod();
  List list = Arrays.asList(new SimpleScalar(s), new SimpleNumber(max));
  assertEquals(expected, ((SimpleScalar)method.exec(list)).getAsString());
}

public void execute(Environment env, Map params, TemplateModel[] loopVars,
                    TemplateDirectiveBody body) throws TemplateException, IOException {

    // ---------------------------------------------------------------------
    // 处理参数

    int countParam = 0;
    boolean countParamSet = false;
    boolean hrParam = false;

    Iterator paramIter = params.entrySet().iterator();
    while (paramIter.hasNext()) {
        Map.Entry ent = (Map.Entry) paramIter.next();

        String paramName = (String) ent.getKey();
        TemplateModel paramValue = (TemplateModel) ent.getValue();

        if (paramName.equals(PARAM_NAME_COUNT)) {
            if (!(paramValue instanceof TemplateNumberModel)) {
                throw new TemplateModelException("The \"" + PARAM_NAME_HR
                        + "\" parameter " + "must be a number.");
            }
            countParam = ((TemplateNumberModel) paramValue).getAsNumber()
                    .intValue();
            countParamSet = true;
            if (countParam < 0) {
                throw new TemplateModelException("The \"" + PARAM_NAME_HR
                        + "\" parameter " + "can't be negative.");
            }
        } else if (paramName.equals(PARAM_NAME_HR)) {
            if (!(paramValue instanceof TemplateBooleanModel)) {
                throw new TemplateModelException("The \"" + PARAM_NAME_HR
                        + "\" parameter " + "must be a boolean.");
            }
            hrParam = ((TemplateBooleanModel) paramValue).getAsBoolean();
        } else {
            throw new TemplateModelException("Unsupported parameter: "
                    + paramName);
        }
    }
    if (!countParamSet) {
        throw new TemplateModelException("The required \""
                + PARAM_NAME_COUNT + "\" paramter" + "is missing.");
    }

    if (loopVars.length > 1) {
        throw new TemplateModelException(
                "At most one loop variable is allowed.");
    }

    // Yeah, it was long and boring...

    // ---------------------------------------------------------------------
    // 真正开始处理输出内容

    Writer out = env.getOut();
    if (body != null) {
        for (int i = 0; i < countParam; i++) {
            // 输出  <hr> 如果 参数hr 设置为true
            if (hrParam && i != 0) {
                out.write("<hr>");
            }

            // 设置循环变量
            if (loopVars.length > 0) {
                loopVars[0] = new SimpleNumber(i + 1);
            }

            // 执行标签内容(same as <#nested> in FTL).
            body.render(env.getOut());
        }
    }
}

@SuppressWarnings("rawtypes")
@Override
public TemplateModel wrap(Object obj) throws TemplateModelException {
       if (obj == null) {
           return super.wrap(null);
       }
       if (obj instanceof TemplateModel) {
           return (TemplateModel) obj;
       }
       if (obj instanceof String) {
           return new SimpleScalar((String) obj);
       }
       if (obj instanceof Number) {
           return new SimpleNumber((Number) obj);
       }
       if (obj instanceof java.util.Date) {
           if(obj instanceof java.sql.Date) {
               return new SimpleDate((java.sql.Date) obj);
           }
           if(obj instanceof java.sql.Time) {
               return new SimpleDate((java.sql.Time) obj);
           }
           if(obj instanceof java.sql.Timestamp) {
               return new SimpleDate((java.sql.Timestamp) obj);
           }
           return new SimpleDate((java.util.Date) obj, getDefaultDateType());
       }
       if (obj.getClass().isArray()) {
           obj = convertArray(obj);
       }
       if (obj instanceof Collection) {
           return new SimpleSequence((Collection) obj, this);
       }
       if (obj instanceof Boolean) {
           return obj.equals(Boolean.TRUE) ? TemplateBooleanModel.TRUE : TemplateBooleanModel.FALSE;
       }
       if (obj instanceof Iterator) {
           return new SimpleCollection((Iterator) obj, this);
       }
       return handleUnknownType(obj);
   }

@Test
public void testArgumentIsNumberSuccess() throws TemplateModelException {
    new SimpleFreemarkerMethod().testArgumentIsNumber(new SimpleNumber(42));
}

@SuppressWarnings("rawtypes")
@Override
public TemplateModel wrap(Object obj) throws TemplateModelException {
       if (obj == null) {
           return super.wrap(null);
       }
       if (obj instanceof TemplateModel) {
           return (TemplateModel) obj;
       }
       if (obj instanceof String) {
           return new SimpleScalar((String) obj);
       }
       if (obj instanceof Number) {
           return new SimpleNumber((Number) obj);
       }
       if (obj instanceof java.util.Date) {
           if(obj instanceof java.sql.Date) {
               return new SimpleDate((java.sql.Date) obj);
           }
           if(obj instanceof java.sql.Time) {
               return new SimpleDate((java.sql.Time) obj);
           }
           if(obj instanceof java.sql.Timestamp) {
               return new SimpleDate((java.sql.Timestamp) obj);
           }
           return new SimpleDate((java.util.Date) obj, getDefaultDateType());
       }
       if (obj.getClass().isArray()) {
           obj = convertArray(obj);
       }
       if (obj instanceof Collection) {
           return new SimpleSequence((Collection) obj, this);
       }
       if (obj instanceof Boolean) {
           return obj.equals(Boolean.TRUE) ? TemplateBooleanModel.TRUE : TemplateBooleanModel.FALSE;
       }
       if (obj instanceof Iterator) {
           return new SimpleCollection((Iterator) obj, this);
       }
       return handleUnknownType(obj);
   }