/*
* =============================================================================
*
* Copyright (c) 2011-2014, 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.thymeleaf.Configuration;
import org.thymeleaf.context.IProcessingContext;
import org.thymeleaf.exceptions.TemplateProcessingException;
/**
*
* @author Daniel Fernández
*
* @since 1.1
*
*/
public abstract class SimpleExpression extends Expression {
private static final long serialVersionUID = 9145380484247069725L;
static final char EXPRESSION_START_CHAR = '{';
static final char EXPRESSION_END_CHAR = '}';
protected SimpleExpression() {
super();
}
static Object executeSimple(final Configuration configuration, final IProcessingContext processingContext, final SimpleExpression expression,
final IStandardVariableExpressionEvaluator expressionEvaluator, final StandardExpressionExecutionContext expContext) {
if (expression instanceof VariableExpression) {
return VariableExpression.executeVariable(configuration, processingContext, (VariableExpression)expression, expressionEvaluator, expContext);
}
if (expression instanceof MessageExpression) {
return MessageExpression.executeMessage(configuration, processingContext, (MessageExpression)expression, expContext);
}
if (expression instanceof TextLiteralExpression) {
return TextLiteralExpression.executeTextLiteral(processingContext, (TextLiteralExpression)expression, expContext);
}
if (expression instanceof NumberTokenExpression) {
return NumberTokenExpression.executeNumberToken(processingContext, (NumberTokenExpression) expression, expContext);
}
if (expression instanceof BooleanTokenExpression) {
return BooleanTokenExpression.executeBooleanToken(processingContext, (BooleanTokenExpression) expression, expContext);
}
if (expression instanceof NullTokenExpression) {
return NullTokenExpression.executeNullToken(processingContext, (NullTokenExpression) expression, expContext);
}
if (expression instanceof LinkExpression) {
return LinkExpression.executeLink(configuration, processingContext, (LinkExpression)expression, expContext);
}
if (expression instanceof SelectionVariableExpression) {
return SelectionVariableExpression.executeSelectionVariable(configuration, processingContext, (SelectionVariableExpression)expression, expressionEvaluator, expContext);
}
if (expression instanceof GenericTokenExpression) {
return GenericTokenExpression.executeGenericToken(processingContext, (GenericTokenExpression) expression, expContext);
}
throw new TemplateProcessingException("Unrecognized simple expression: " + expression.getClass().getName());
}
}