package er.jrexample.controllers;
import java.io.File;
import org.apache.commons.lang.exception.NestableRuntimeException;
import org.apache.log4j.Logger;
import com.webobjects.appserver.WOActionResults;
import com.webobjects.appserver.WOComponent;
import er.extensions.appserver.ERXNextPageForResultWOAction;
import er.extensions.appserver.ERXWOContext;
import er.extensions.components.ERXDownloadResponse;
import er.jrexample.components.DownloadIsCompletePage;
/**
* A generic controller for handling a long response that generates a file to download.
*
* The responsibility of this class is to pass control from the long response page at the end of
* the execution of the long response task to the next page, which in this case is the "Your File is being downloaded" page.
*
* @author kieran
*
*/
public class FileTaskDownloadController extends ERXNextPageForResultWOAction {
@SuppressWarnings("unused")
private static final Logger log = Logger.getLogger(FileTaskDownloadController.class);
private String _returnLinkText;
private final WOComponent _senderPage;
public FileTaskDownloadController() {
super();
_senderPage = ERXWOContext.currentContext().page();
}
/** @return the link text for the link/button that brings the user back to the original page that initiated the long response file download */
public String returnLinkText() {
return _returnLinkText;
}
/** @param returnLinkText the link text for the link/button that brings the user back to the original page that initiated the long response file download */
public void setReturnLinkText(String returnLinkText){
_returnLinkText = returnLinkText;
}
@Override
public WOActionResults performAction() {
if (_result instanceof File) {
File file = (File) _result;
ERXDownloadResponse dl = pageWithName(ERXDownloadResponse.class);
dl.setFileToDownload(file);
dl.setDownloadFilename(downloadFileNameForClient());
DownloadIsCompletePage nextPage = pageWithName(DownloadIsCompletePage.class);
nextPage.setDownloadResponseComponent(dl);
nextPage.setReturnLinkText(returnLinkText());
nextPage.setReferringPage(_senderPage);
return nextPage;
} else {
throw new NestableRuntimeException("Unknown result type: " + (_result == null ? "null" : _result.toString()));
}
}
private String _downloadFileNameForClient;
/** @return what */
public String downloadFileNameForClient() {
return _downloadFileNameForClient;
}
/** @param downloadFileNameForClient what */
public void setDownloadFileNameForClient(String downloadFileNameForClient){
_downloadFileNameForClient = downloadFileNameForClient;
}
}