Java tutorial
/* * Copyright 2016 ZJNU ACM. * * 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 cn.edu.zjnu.acm.judge.config.thymeleaf; import org.springframework.util.StringUtils; import org.thymeleaf.context.ITemplateContext; import org.thymeleaf.model.IText; import org.thymeleaf.processor.text.AbstractTextProcessor; import org.thymeleaf.processor.text.ITextStructureHandler; import org.thymeleaf.templatemode.TemplateMode; /** * * @author zhanhb */ class EmptyTextProcessor extends AbstractTextProcessor { EmptyTextProcessor(TemplateMode templateMode, int precedence) { super(templateMode, precedence); } @Override public void doProcess(ITemplateContext context, IText text, ITextStructureHandler structureHandler) { String content = text.getText(); if (!StringUtils.hasText(content)) { structureHandler.removeText(); } } }