/*
* =============================================================================
*
* 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.processor.attr;
import java.util.HashMap;
import java.util.Map;
import org.thymeleaf.Arguments;
import org.thymeleaf.Configuration;
import org.thymeleaf.dom.Element;
import org.thymeleaf.processor.IAttributeNameProcessorMatcher;
import org.thymeleaf.processor.attr.AbstractLocalVariableDefinitionAttrProcessor;
import org.thymeleaf.standard.expression.IStandardExpression;
import org.thymeleaf.standard.expression.IStandardExpressionParser;
import org.thymeleaf.standard.expression.StandardExpressions;
/**
*
* @author Daniel Fernández
*
* @since 2.0.0
*
*/
public abstract class AbstractStandardSwitchStructureAttrProcessor
extends AbstractLocalVariableDefinitionAttrProcessor {
public static final String SWITCH_VARIABLE_NAME = "[%SWITCH_EXPR%]";
protected AbstractStandardSwitchStructureAttrProcessor(final IAttributeNameProcessorMatcher matcher) {
super(matcher);
}
protected AbstractStandardSwitchStructureAttrProcessor(final String attributeName) {
super(attributeName);
}
@Override
protected final Map<String, Object> getNewLocalVariables(
final Arguments arguments, final Element element, final String attributeName) {
final String attributeValue = element.getAttributeValue(attributeName);
final Configuration configuration = arguments.getConfiguration();
final IStandardExpressionParser expressionParser = StandardExpressions.getExpressionParser(configuration);
final IStandardExpression switchExpression = expressionParser.parseExpression(configuration, arguments, attributeValue);
final Map<String,Object> newVariables = new HashMap<String, Object>(2, 1.0f);
newVariables.put(SWITCH_VARIABLE_NAME, new SwitchStructure(switchExpression));
return newVariables;
}
public static final class SwitchStructure {
private final IStandardExpression expression;
private boolean executed;
public SwitchStructure(final IStandardExpression expression) {
super();
this.expression = expression;
this.executed = false;
}
public IStandardExpression getExpression() {
return this.expression;
}
public boolean isExecuted() {
return this.executed;
}
public void setExecuted(final boolean executed) {
this.executed = executed;
}
}
}