| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package freemarker.core; |
| |
| import java.text.DecimalFormat; |
| import java.text.DecimalFormatSymbols; |
| import java.text.NumberFormat; |
| |
| /** |
| * Defines the methods in {@link CFormat} that are the same for all JSON-like languages. |
| * |
| * <p><b>Experimental class!</b> This class is too new, and might will change over time. Therefore, for now |
| * constructor and most methods are not exposed outside FreeMarker, and so you can't create a custom implementation. |
| * The class itself and some members are exposed as they are needed for configuring FreeMarker. |
| * |
| * @since 2.3.32 |
| */ |
| public abstract class AbstractJSONLikeFormat extends CFormat { |
| private static final TemplateNumberFormat TEMPLATE_NUMBER_FORMAT = new CTemplateNumberFormat( |
| "Infinity", "-Infinity", "NaN", |
| "Infinity", "-Infinity", "NaN"); |
| |
| private static final DecimalFormat LEGACY_NUMBER_FORMAT_PROTOTYPE = (DecimalFormat) Default230CFormat.LEGACY_NUMBER_FORMAT_PROTOTYPE.clone(); |
| static { |
| DecimalFormatSymbols symbols = LEGACY_NUMBER_FORMAT_PROTOTYPE.getDecimalFormatSymbols(); |
| symbols.setInfinity("Infinity"); |
| symbols.setNaN("NaN"); |
| LEGACY_NUMBER_FORMAT_PROTOTYPE.setDecimalFormatSymbols(symbols); |
| } |
| |
| // Visibility is not "protected" to avoid external implementations while this class is experimental. |
| AbstractJSONLikeFormat() { |
| } |
| |
| @Override |
| String getTrueString() { |
| return "true"; |
| } |
| |
| @Override |
| String getFalseString() { |
| return "false"; |
| } |
| |
| @Override |
| final String getNullString() { |
| return "null"; |
| } |
| |
| @Override |
| final TemplateNumberFormat getTemplateNumberFormat(Environment env) { |
| return TEMPLATE_NUMBER_FORMAT; |
| } |
| |
| @Override |
| NumberFormat getLegacyNumberFormat(Environment env) { |
| return (NumberFormat) LEGACY_NUMBER_FORMAT_PROTOTYPE.clone(); |
| } |
| } |