/*
* =============================================================================
*
* 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 java.util.Set;
import org.thymeleaf.Arguments;
import org.thymeleaf.Configuration;
import org.thymeleaf.dom.Element;
import org.thymeleaf.processor.IAttributeNameProcessorMatcher;
import org.thymeleaf.processor.attr.AbstractAttributeModifierAttrProcessor;
import org.thymeleaf.standard.expression.IStandardExpression;
import org.thymeleaf.standard.expression.IStandardExpressionParser;
import org.thymeleaf.standard.expression.StandardExpressions;
/**
*
* @author Daniel Fernández
*
* @since 1.0
*
*/
public abstract class AbstractStandardSingleValueMultipleAttributeModifierAttrProcessor
extends AbstractAttributeModifierAttrProcessor {
protected AbstractStandardSingleValueMultipleAttributeModifierAttrProcessor(final IAttributeNameProcessorMatcher matcher) {
super(matcher);
}
protected AbstractStandardSingleValueMultipleAttributeModifierAttrProcessor(final String attributeName) {
super(attributeName);
}
@Override
protected final Map<String, String> getModifiedAttributeValues(
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 expression = expressionParser.parseExpression(configuration, arguments, attributeValue);
final Set<String> newAttributeNames =
getModifiedAttributeNames(arguments, element, attributeName, attributeValue, expression);
final Object valueForAttributes = expression.execute(configuration, arguments);
final Map<String,String> result = new HashMap<String,String>(newAttributeNames.size() + 1, 1.0f);
for (final String newAttributeName : newAttributeNames) {
result.put(newAttributeName, (valueForAttributes == null? "" : valueForAttributes.toString()));
}
return result;
}
protected abstract Set<String> getModifiedAttributeNames(final Arguments arguments,
final Element element, final String attributeName, final String attributeValue, final IStandardExpression expression);
@Override
protected boolean recomputeProcessorsAfterExecution(final Arguments arguments,
final Element element, final String attributeName) {
return false;
}
}