/*
* =============================================================================
*
* Copyright (c) 2011-2016, 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.expression;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.thymeleaf.TemplateEngine;
import org.thymeleaf.context.IExpressionContext;
/**
* <p>
* Boolean token (Thymeleaf Standard Expressions)
* </p>
* <p>
* Note a class with this name existed since 2.1.0, but it was completely reimplemented
* in Thymeleaf 3.0
* </p>
*
* @author Daniel Fernández
*
* @since 3.0.0
*
*/
public final class BooleanTokenExpression extends Token {
private static final Logger logger = LoggerFactory.getLogger(BooleanTokenExpression.class);
private static final long serialVersionUID = 7003426193298054476L;
public BooleanTokenExpression(final String value) {
super(Boolean.valueOf(value));
}
public BooleanTokenExpression(final Boolean value) {
super(value);
}
static BooleanTokenExpression parseBooleanTokenExpression(final String input) {
if ("true".equalsIgnoreCase(input) || "false".equalsIgnoreCase(input)) {
return new BooleanTokenExpression(input);
}
return null;
}
static Object executeBooleanTokenExpression(
final IExpressionContext context,
final BooleanTokenExpression expression,
final StandardExpressionExecutionContext expContext) {
if (logger.isTraceEnabled()) {
logger.trace("[THYMELEAF][{}] Evaluating boolean token: \"{}\"", TemplateEngine.threadIndex(), expression.getStringRepresentation());
}
return expression.getValue();
}
}