Examples of DeferredFileOutputStream

org.apache.commons.fileupload.DeferredFileOutputStream

An output stream which will retain data in memory until a specified threshold is reached, and only then commit it to disk. If the stream is closed before the threshold is reached, the data will not be written to disk at all.
@author Martin Cooper @version $Id: DeferredFileOutputStream.java,v 1.2 2003/05/31 22:31:08 martinc Exp $
org.apache.commons.io.output.DeferredFileOutputStream

An output stream which will retain data in memory until a specified threshold is reached, and only then commit it to disk. If the stream is closed before the threshold is reached, the data will not be written to disk at all.

This class originated in FileUpload processing. In this use case, you do not know in advance the size of the file being uploaded. If the file is small you want to store it in memory (for speed), but if the file is large you want to store it to file (to avoid memory issues).
@author Martin Cooper @author gaxzerow @version $Id: DeferredFileOutputStream.java 280004 2005-09-10 13:19:17Z scolebourne $
org.apache.tomcat.util.http.fileupload.DeferredFileOutputStream
An output stream which will retain data in memory until a specified threshold is reached, and only then commit it to disk. If the stream is closed before the threshold is reached, the data will not be written to disk at all.
This class originated in FileUpload processing. In this use case, you do not know in advance the size of the file being uploaded. If the file is small you want to store it in memory (for speed), but if the file is large you want to store it to file (to avoid memory issues). @version $Id: DeferredFileOutputStream.java 1456969 2013-03-15 14:37:04Z markt $
org.apache.wicket.util.io.DeferredFileOutputStream

An output stream which will retain data in memory until a specified threshold is reached, and only then commit it to disk. If the stream is closed before the threshold is reached, the data will not be written to disk at all.

This class originated in FileUpload processing. In this use case, you do not know in advance the size of the file being uploaded. If the file is small you want to store it in memory (for speed), but if the file is large you want to store it to file (to avoid memory issues).
@author Martin Cooper
org.subethamail.smtp.io.DeferredFileOutputStream
This works like a ByteArrayOutputStream until a certain size is reached, then creates a temp file and acts like a buffered FileOutputStream. The data can be retreived afterwards by calling getInputStream(). When this object is closed, the temporary file is deleted. You can no longer call getInputStream(). @author Jeff Schnitzer

Examples of org.subethamail.smtp.io.DeferredFileOutputStream

public class MimeMessageConverter {
    private Logger logger = LoggerFactory.getLogger(MimeMessageConverter.class);


    public MailData createMailDataInSmtpSession(MimeMessage mimeMessage)
            throws RejectExceptionExt {
        DeferredFileOutputStream deferredFileOutputStream =
                new DeferredFileOutputStream(32768);
        try {
            mimeMessage.writeTo(deferredFileOutputStream);
        } catch (IOException e) {
            logger.error("Cannot write MimeMessage", e);
            try {
                deferredFileOutputStream.close();
            } catch (IOException e1) {
                logger.warn("Cannot close deferredFileOutputStream", e1);
            }
            throw new RejectExceptionExt(
                    EnhancedStatus.TRANSIENT_LOCAL_ERROR_IN_PROCESSING);
        } catch (MessagingException e) {
            logger.error("Cannot write MimeMessage", e);
            try {
                deferredFileOutputStream.close();
            } catch (IOException e1) {
                logger.warn("Cannot close deferredFileOutputStream", e1);
            }
            throw new RejectExceptionExt(
                    EnhancedStatus.TRANSIENT_LOCAL_ERROR_IN_PROCESSING);

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