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Modern server-side Java template engine for both web and standalone environments

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/*
 * =============================================================================
 *
 *   Copyright (c) 2011-2018, The THYMELEAF team (http://www.thymeleaf.org)
 *
 *   Licensed 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 org.thymeleaf.standard.serializer;

import org.thymeleaf.IEngineConfiguration;
import org.thymeleaf.exceptions.TemplateProcessingException;


/**
 * 

* Utility class for the easy obtention of objects relevant to the serialization of output values * in template modes like JavaScript and/or CSS. *

* * @author Daniel Fernández * * @since 3.0.0 * */ public final class StandardSerializers { /** * Name used for registering the Standard JavaScript Serializer object as an * execution attribute at the Standard Dialects. */ public static final String STANDARD_JAVASCRIPT_SERIALIZER_ATTRIBUTE_NAME = "StandardJavaScriptSerializer"; /** * Name used for registering the Standard CSS Serializer object as an * execution attribute at the Standard Dialects. */ public static final String STANDARD_CSS_SERIALIZER_ATTRIBUTE_NAME = "StandardCSSSerializer"; private StandardSerializers() { super(); } /** *

* Obtain the JavaScript serializer (implementation of {@link IStandardJavaScriptSerializer}) registered by * the Standard Dialect that is being currently used. *

* * @param configuration the configuration object for the current template execution environment. * @return the parser object. */ public static IStandardJavaScriptSerializer getJavaScriptSerializer(final IEngineConfiguration configuration) { final Object serializer = configuration.getExecutionAttributes().get(STANDARD_JAVASCRIPT_SERIALIZER_ATTRIBUTE_NAME); if (serializer == null || (!(serializer instanceof IStandardJavaScriptSerializer))) { throw new TemplateProcessingException( "No JavaScript Serializer has been registered as an execution argument. " + "This is a requirement for using Standard serialization, and might happen " + "if neither the Standard or the SpringStandard dialects have " + "been added to the Template Engine and none of the specified dialects registers an " + "attribute of type " + IStandardJavaScriptSerializer.class.getName() + " with name " + "\"" + STANDARD_JAVASCRIPT_SERIALIZER_ATTRIBUTE_NAME + "\""); } return (IStandardJavaScriptSerializer) serializer; } /** *

* Obtain the CSS serializer (implementation of {@link IStandardCSSSerializer}) registered by * the Standard Dialect that is being currently used. *

* * @param configuration the configuration object for the current template execution environment. * @return the variable expression evaluator object. */ public static IStandardCSSSerializer getCSSSerializer(final IEngineConfiguration configuration) { final Object serializer = configuration.getExecutionAttributes().get(STANDARD_CSS_SERIALIZER_ATTRIBUTE_NAME); if (serializer == null || (!(serializer instanceof IStandardCSSSerializer))) { throw new TemplateProcessingException( "No CSS Serializer has been registered as an execution argument. " + "This is a requirement for using Standard serialization, and might happen " + "if neither the Standard or the SpringStandard dialects have " + "been added to the Template Engine and none of the specified dialects registers an " + "attribute of type " + IStandardCSSSerializer.class.getName() + " with name " + "\"" + STANDARD_CSS_SERIALIZER_ATTRIBUTE_NAME + "\""); } return (IStandardCSSSerializer) serializer; } }




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