/*
* Copyright 2002-2015 the original author or authors.
*
* 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.springframework.web.servlet.view.document;
import java.io.IOException;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.streaming.SXSSFWorkbook;
/**
* Convenient superclass for Excel document views in the Office 2007 XLSX format,
* using POI's streaming variant. Compatible with Apache POI 3.9 and higher.
*
* <p>For working with the workbook in subclasses, see
* <a href="http://poi.apache.org">Apache's POI site</a>.
*
* @author Juergen Hoeller
* @since 4.2
*/
public abstract class AbstractXlsxStreamingView extends AbstractXlsxView {
/**
* This implementation creates a {@link SXSSFWorkbook} for streaming the XLSX format.
*/
@Override
protected SXSSFWorkbook createWorkbook(Map<String, Object> model, HttpServletRequest request) {
return new SXSSFWorkbook();
}
/**
* This implementation disposes of the {@link SXSSFWorkbook} when done with rendering.
* @see org.apache.poi.xssf.streaming.SXSSFWorkbook#dispose()
*/
@Override
protected void renderWorkbook(Workbook workbook, HttpServletResponse response) throws IOException {
super.renderWorkbook(workbook, response);
// Dispose of temporary files in case of streaming variant...
((SXSSFWorkbook) workbook).dispose();
}
}