/*
* Copyright 2013 Dan Haywood
*
* 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 com.danhaywood.isis.wicket.excel.collectioncontents;
import java.io.File;
import org.apache.wicket.markup.html.link.DownloadLink;
import org.apache.wicket.model.LoadableDetachableModel;
import org.apache.wicket.request.IRequestCycle;
import org.apache.wicket.request.handler.resource.ResourceStreamRequestHandler;
import org.apache.wicket.request.resource.ContentDisposition;
import org.apache.wicket.util.encoding.UrlEncoder;
import org.apache.wicket.util.file.Files;
import org.apache.wicket.util.resource.FileResourceStream;
import org.apache.wicket.util.resource.IResourceStream;
class ExcelFileDownloadLink extends DownloadLink {
private static final long serialVersionUID = 1L;
private final String xlsxFileName;
public ExcelFileDownloadLink(String id, LoadableDetachableModel<File> model, String xlsxFileName) {
super(id, model, xlsxFileName);
this.xlsxFileName = xlsxFileName;
}
@Override
public void onClick()
{
final File file = getModelObject();
if (file == null)
{
throw new IllegalStateException(getClass().getName() +
" failed to retrieve a File object from model");
}
String fileName = UrlEncoder.QUERY_INSTANCE.encode(this.xlsxFileName, getRequest().getCharset());
final IResourceStream resourceStream = new FileResourceStream(
new org.apache.wicket.util.file.File(file)) {
private static final long serialVersionUID = 1L;
@Override
public String getContentType() {
return "application/vnd.openxmlformats-officedocument.spreadsheetml.worksheet+xml";
}
};
getRequestCycle().scheduleRequestHandlerAfterCurrent(
new ResourceStreamRequestHandler(resourceStream)
{
@Override
public void respond(IRequestCycle requestCycle)
{
super.respond(requestCycle);
Files.remove(file);
}
}.setFileName(fileName)
.setContentDisposition(ContentDisposition.ATTACHMENT));
}
}