/*
* #%L
* BroadleafCommerce Framework Web
* %%
* Copyright (C) 2009 - 2013 Broadleaf Commerce
* %%
* 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.
* #L%
*/
package org.broadleafcommerce.core.web.processor;
import org.broadleafcommerce.common.web.BroadleafRequestContext;
import org.broadleafcommerce.core.search.domain.ProductSearchCriteria;
import org.broadleafcommerce.core.web.util.ProcessorUtils;
import org.thymeleaf.Arguments;
import org.thymeleaf.dom.Element;
import org.thymeleaf.processor.attr.AbstractAttributeModifierAttrProcessor;
import org.thymeleaf.standard.expression.Expression;
import org.thymeleaf.standard.expression.StandardExpressions;
import java.util.HashMap;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
/**
* <p>
* A Thymeleaf processor that processes the value attribute on the element it's tied to
* with a predetermined value based on the SearchFacetResultDTO object that is passed into this
* processor.
*
*
* @author apazzolini
*/
public class PaginationPageLinkProcessor extends AbstractAttributeModifierAttrProcessor {
/**
* Sets the name of this processor to be used in Thymeleaf template
*/
public PaginationPageLinkProcessor() {
super("paginationpagelink");
}
@Override
public int getPrecedence() {
return 10000;
}
@Override
@SuppressWarnings("unchecked")
protected Map<String, String> getModifiedAttributeValues(Arguments arguments, Element element, String attributeName) {
Map<String, String> attrs = new HashMap<String, String>();
BroadleafRequestContext blcContext = BroadleafRequestContext.getBroadleafRequestContext();
HttpServletRequest request = blcContext.getRequest();
String baseUrl = request.getRequestURL().toString();
Map<String, String[]> params = new HashMap<String, String[]>(request.getParameterMap());
Expression expression = (Expression) StandardExpressions.getExpressionParser(arguments.getConfiguration())
.parseExpression(arguments.getConfiguration(), arguments, element.getAttributeValue(attributeName));
Integer page = (Integer) expression.execute(arguments.getConfiguration(), arguments);
if (page != null && page > 1) {
params.put(ProductSearchCriteria.PAGE_NUMBER, new String[] { page.toString() });
} else {
params.remove(ProductSearchCriteria.PAGE_NUMBER);
}
String url = ProcessorUtils.getUrl(baseUrl, params);
attrs.put("href", url);
return attrs;
}
@Override
protected ModificationType getModificationType(Arguments arguments, Element element, String attributeName, String newAttributeName) {
return ModificationType.SUBSTITUTION;
}
@Override
protected boolean removeAttributeIfEmpty(Arguments arguments, Element element, String attributeName, String newAttributeName) {
return true;
}
@Override
protected boolean recomputeProcessorsAfterExecution(Arguments arguments, Element element, String attributeName) {
return false;
}
}