@Thiago - I am using Tapestry 5.1.0.5.
@Martin - here is my code. This code works when called from onActivate()
and returns the file.
JAVA
@Log
StreamResponse onSuccess() {
try {
File tmpFile = File.createTempFile(urlFile.getFileName(), null);
BufferedWriter br = new BufferedWriter(new FileWriter(tmpFile));
br.append("something to test\nAnother line to test");
br.flush();
br.close();
return new CsvStreamResponse(new
FileInputStream(tmpFile.getAbsolutePath()), "results_file");
} catch (IOException e) {
e.printStackTrace();
addError("An Error occured while streaming back the results.");
}
return null;
}
public class CsvStreamResponse implements StreamResponse {
private InputStream is;
private String filename;
public CsvStreamResponse(InputStream is, String filename) {
this.is = is;
this.filename = filename;
}
public String getContentType() {
return "text/csv";
}
public InputStream getStream() throws IOException {
return is;
}
public void prepareResponse(Response arg0) {
arg0.setHeader("Content-Disposition", "attachment; filename=" +
filename + ".csv");
//also tried setting content length after this -
arg0.setContentLength(is.available());
}
}
TML
<form t:type="form" t:id="analysis">
<t:upload t:id="urlFile" class="marginRight" validate="required"/>
<t:submit class="marginRight white button medium"
value="${message:button.upload}" t:id="upload"/>
</form>
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