Examples with ServletOutputStream javax.servlet.ServletOutputStream used on opensource projects

Example 51 with ServletOutputStream

use of javax.servlet.ServletOutputStream in project dubbo by alibaba.

the class Restful method execute.

public void execute(Map<String, Object> context) throws Exception {
    Result result = new Result();
    if (request.getParameter("url") != null) {
        url = URL.valueOf(URL.decode(request.getParameter("url")));
    }
    if (context.get(WebConstants.CURRENT_USER_KEY) != null) {
        User user = (User) context.get(WebConstants.CURRENT_USER_KEY);
        currentUser = user;
        operator = user.getUsername();
        role = user.getRole();
        context.put(WebConstants.CURRENT_USER_KEY, user);
    }
    operatorAddress = (String) context.get("clientid");
    if (operatorAddress == null || operatorAddress.isEmpty()) {
        operatorAddress = (String) context.get("request.remoteHost");
    }
    context.put("operator", operator);
    context.put("operatorAddress", operatorAddress);
    String jsonResult = null;
    try {
        result = doExecute(context);
        result.setStatus("OK");
    } catch (IllegalArgumentException t) {
        result.setStatus("ERROR");
        result.setCode(3);
        result.setMessage(t.getMessage());
    }//        }
     catch (Throwable t) {
        result.setStatus("ERROR");
        result.setCode(1);
        result.setMessage(t.getMessage());
    }
    response.setContentType("application/javascript");
    ServletOutputStream os = response.getOutputStream();
    try {
        jsonResult = JSON.toJSONString(result);
        os.print(jsonResult);
    } catch (Exception e) {
        response.setStatus(500);
        os.print(e.getMessage());
    } finally {
        os.flush();
    }
}

Example 52 with ServletOutputStream

use of javax.servlet.ServletOutputStream in project adempiere by adempiere.

the class WebUtil method streamAttachment.

//	getClosePopupButton
/**
	 * 	Stream Attachment Entry
	 *	@param response response
	 *	@param attachment attachment
	 *	@param attachmentIndex logical index
	 *	@return error message or null
	 */
public static String streamAttachment(HttpServletResponse response, MAttachment attachment, int attachmentIndex) {
    if (attachment == null)
        return "No Attachment";
    int realIndex = -1;
    MAttachmentEntry[] entries = attachment.getEntries();
    for (int i = 0; i < entries.length; i++) {
        MAttachmentEntry entry = entries[i];
        if (entry.getIndex() == attachmentIndex) {
            realIndex = i;
            break;
        }
    }
    if (realIndex < 0) {
        log.fine("No Attachment Entry for Index=" + attachmentIndex + " - " + attachment);
        return "Attachment Entry not found";
    }
    MAttachmentEntry entry = entries[realIndex];
    if (entry.getData() == null) {
        log.fine("Empty Attachment Entry for Index=" + attachmentIndex + " - " + attachment);
        return "Attachment Entry empty";
    }
    //	Stream Attachment Entry
    try {
        //	2k Buffer
        int bufferSize = 2048;
        int fileLength = entry.getData().length;
        //
        response.setContentType(entry.getContentType());
        response.setBufferSize(bufferSize);
        response.setContentLength(fileLength);
        //
        log.fine(entry.toString());
        //	timer start
        long time = System.currentTimeMillis();
        //
        ServletOutputStream out = response.getOutputStream();
        out.write(entry.getData());
        out.flush();
        out.close();
        //
        time = System.currentTimeMillis() - time;
        double speed = (fileLength / 1024) / ((double) time / 1000);
        log.info("Length=" + fileLength + " - " + time + " ms - " + speed + " kB/sec - " + entry.getContentType());
    } catch (IOException ex) {
        log.log(Level.SEVERE, ex.toString());
        return "Streaming error - " + ex;
    }
    return null;
}

Example 53 with ServletOutputStream

use of javax.servlet.ServletOutputStream in project adempiere by adempiere.

the class WebUtil method streamFile.

//	streamAttachment
/**
	 * 	Stream File
	 *	@param response response
	 *	@param file file to stream
	 *	@return error message or null
	 */
public static String streamFile(HttpServletResponse response, File file) {
    if (file == null)
        return "No File";
    if (!file.exists())
        return "File not found: " + file.getAbsolutePath();
    MimeType mimeType = MimeType.get(file.getAbsolutePath());
    //	Stream File
    try {
        //	2k Buffer
        int bufferSize = 2048;
        int fileLength = (int) file.length();
        //
        response.setContentType(mimeType.getMimeType());
        response.setBufferSize(bufferSize);
        response.setContentLength(fileLength);
        //
        log.fine(file.toString());
        //	timer start
        long time = System.currentTimeMillis();
        //	Get Data
        FileInputStream in = new FileInputStream(file);
        ServletOutputStream out = response.getOutputStream();
        int c = 0;
        while ((c = in.read()) != -1) out.write(c);
        //
        out.flush();
        out.close();
        in.close();
        //
        time = System.currentTimeMillis() - time;
        double speed = (fileLength / 1024) / ((double) time / 1000);
        log.info("Length=" + fileLength + " - " + time + " ms - " + speed + " kB/sec - " + mimeType);
    } catch (IOException ex) {
        log.log(Level.SEVERE, ex.toString());
        return "Streaming error - " + ex;
    }
    return null;
}

Example 54 with ServletOutputStream

use of javax.servlet.ServletOutputStream in project adempiere by adempiere.

the class MobileUtil method streamAttachment.

//	getClosePopupButton
/**
	 * 	Stream Attachment Entry
	 *	@param response response
	 *	@param attachment attachment
	 *	@param attachmentIndex logical index
	 *	@return error message or null
	 */
public static String streamAttachment(HttpServletResponse response, MAttachment attachment, int attachmentIndex) {
    if (attachment == null)
        return "No Attachment";
    int realIndex = -1;
    MAttachmentEntry[] entries = attachment.getEntries();
    for (int i = 0; i < entries.length; i++) {
        MAttachmentEntry entry = entries[i];
        if (entry.getIndex() == attachmentIndex) {
            realIndex = i;
            break;
        }
    }
    if (realIndex < 0) {
        log.fine("No Attachment Entry for Index=" + attachmentIndex + " - " + attachment);
        return "Attachment Entry not found";
    }
    MAttachmentEntry entry = entries[realIndex];
    if (entry.getData() == null) {
        log.fine("Empty Attachment Entry for Index=" + attachmentIndex + " - " + attachment);
        return "Attachment Entry empty";
    }
    //	Stream Attachment Entry
    try {
        //	2k Buffer
        int bufferSize = 2048;
        int fileLength = entry.getData().length;
        //
        response.setContentType(entry.getContentType());
        response.setBufferSize(bufferSize);
        response.setContentLength(fileLength);
        //
        log.fine(entry.toString());
        //	timer start
        long time = System.currentTimeMillis();
        //
        ServletOutputStream out = response.getOutputStream();
        out.write(entry.getData());
        out.flush();
        out.close();
        //
        time = System.currentTimeMillis() - time;
        double speed = (fileLength / 1024) / ((double) time / 1000);
        log.info("Length=" + fileLength + " - " + time + " ms - " + speed + " kB/sec - " + entry.getContentType());
    } catch (IOException ex) {
        log.log(Level.SEVERE, ex.toString());
        return "Streaming error - " + ex;
    }
    return null;
}

Example 55 with ServletOutputStream

use of javax.servlet.ServletOutputStream in project jackrabbit-oak by apache.

the class GetLastRevisionHandler method handle.

@Override
public void handle(HttpServletRequest request, HttpServletResponse response) throws IOException {
    RemoteSession session = (RemoteSession) request.getAttribute("session");
    if (session == null) {
        sendInternalServerError(response, "session not found");
        return;
    }
    RemoteRevision revision = session.readLastRevision();
    response.setStatus(HttpServletResponse.SC_OK);
    response.setContentType("application/json");
    ServletOutputStream stream = response.getOutputStream();
    JsonGenerator generator = new JsonFactory().createJsonGenerator(stream, JsonEncoding.UTF8);
    generator.writeStartObject();
    generator.writeStringField("revision", revision.asString());
    generator.writeEndObject();
    generator.flush();
    stream.close();
}