Examples of org.apache.axiom.attachments.lifecycle.DataHandlerExt.readOnce()

org.apache.axiom.attachments.lifecycle.DataHandlerExt.readOnce()

Get an {@link InputStream} that consumes the content of this data handler. This method issimilar to {@link DataHandler#getInputStream()} except that it can be invoked only once. Ifthe content has not been buffered yet, then the implementation may choose to enable streaming of the content.

The implementation ensures that after the returned input steam is consumed, the data handler will be in the same state as after a call to {@link #purgeDataSource()}. @return the stream representing the content; never null @throws IOException if an error occurs

        try {
            // We configure Attachments to buffer MIME parts in memory. If the part content is not
            // streamed, then this will result in an OOM error.
            Attachments attachments = new Attachments(pipeIn, message.getContentType());
            DataHandlerExt dh = (DataHandlerExt)attachments.getDataHandler("part2@apache.org");
            IOTestUtils.compareStreams(dataSource.getInputStream(), dh.readOnce());
        } finally {
            pipeIn.close();
        }
    }

        try {
            // We configure Attachments to buffer MIME parts in memory. If the part content is not
            // streamed, then this will result in an OOM error.
            Attachments attachments = new Attachments(pipeIn, message.getContentType());
            DataHandlerExt dh = (DataHandlerExt)attachments.getDataHandler("part2@apache.org");
            IOTestUtils.compareStreams(dataSource.getInputStream(), dh.readOnce());
        } finally {
            pipeIn.close();
        }
    }

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