Example usage for org.apache.commons.fileupload FileUploadException getStackTrace

Introduction

In this page you can find the example usage for org.apache.commons.fileupload FileUploadException getStackTrace.

Prototype

public StackTraceElement[] getStackTrace() 

Source Link

Document

Provides programmatic access to the stack trace information printed by #printStackTrace() .

Usage

From source file:org.trianacode.TrianaCloud.Broker.Broker.java

public void doPost(HttpServletRequest request, HttpServletResponse response)
        throws IOException, ServletException {
    logger.info("Broker received a request.");
    String pathInfo = isolatePath(request);
    String content = "";
    if (!pathInfo.equalsIgnoreCase("")) {
        logger.info("Unknown Endpoint");
        write404Error(response, "Unknown endpoint");
        return;// w  w  w. java  2s.c  om
    }

    try {
        byte[] data = null;
        String r_key = "";
        String fname = "";
        String name = "";
        int numTasks = 0;
        StringBuilder s = new StringBuilder();

        try {
            List<FileItem> items = new ServletFileUpload(new DiskFileItemFactory()).parseRequest(request);
            for (FileItem item : items) {
                if (item.isFormField()) {
                    // Process regular form field (input type="text|radio|checkbox|etc", select, etc).
                    String fieldname = item.getFieldName();
                    String fieldvalue = item.getString();
                    if (fieldname.equalsIgnoreCase("task")) {
                        s.append(fieldvalue);
                    }
                    if (fieldname.equalsIgnoreCase("routingkey")) {
                        r_key = fieldvalue;
                    }
                    if (fieldname.equalsIgnoreCase("numtasks")) {
                        numTasks = Integer.parseInt(fieldvalue);
                    }
                    if (fieldname.equalsIgnoreCase("name")) {
                        name = fieldvalue;
                    }
                } else {
                    // Process form file field (input type="file").
                    String fieldname = item.getFieldName();
                    String filename = FilenameUtils.getName(item.getName());
                    // ... (do your job here)

                    fname = filename;

                    InputStream is = item.getInputStream();

                    long length = item.getSize();

                    if (length > Integer.MAX_VALUE) {
                        // File is too large
                        throw new Exception("File too large");
                    }

                    // Create the byte array to hold the data
                    byte[] bytes = new byte[(int) length];

                    // Read in the bytes
                    int offset = 0;
                    int numRead = 0;
                    while (offset < bytes.length
                            && (numRead = is.read(bytes, offset, bytes.length - offset)) >= 0) {
                        offset += numRead;
                    }

                    // Ensure all the bytes have been read in
                    if (offset < bytes.length) {
                        throw new IOException("Could not completely read file " + length);
                    }
                    data = bytes;
                }
            }
        } catch (FileUploadException e) {
            logger.error("Cannot parse multipart request.");
            throw new ServletException("Cannot parse multipart request.", e);
        }

        List<String> UUIDList = new ArrayList<String>();

        log.debug(content);
        for (int i = 0; i < numTasks; i++) {
            Task t = new Task();
            t.setData(data);
            t.setDataMD5(MD5.getMD5Hash(data));
            t.setDataType("binary");
            t.setName(name);
            t.setFileName(fname);
            t.setOrigin("Broker");
            t.setDispatchTime(System.currentTimeMillis());
            t.setRoutingKey(r_key);
            t.setUUID(UUID.randomUUID().toString());
            insertTask(t);
            UUIDList.add(t.getUUID());
        }

        StringBuilder sb = new StringBuilder();
        for (String id : UUIDList) {
            sb.append(id + "\n");
        }
        //String ret = "Ok; ///TODO:do some stuff here
        writeResponse(response, 200, "Success", sb.toString());

        List<Task> t = td.list();

        for (Task ta : t) {
            System.out.println(ta.getDispatchTime() + "  " + ta.getState());
        }

    } catch (Exception e) {
        e.printStackTrace();
        log.error(e);
        StringBuffer stack = new StringBuffer("Error: " + e.getMessage() + "<br/>");
        StackTraceElement[] trace = e.getStackTrace();
        for (StackTraceElement element : trace) {
            stack.append(element.toString()).append("<br/>");
        }
        writeError(response, 500, stack.toString());
    } catch (Throwable t) {
        writeThrowable(response, t);
    }
}

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