How to read an inputStream in UTF-8 into a byte array.
Hi, Java version is 1.4.2. If inputStream.read() is used to read the bytes into a byte array, is it guarenteed that UTF-8 chars are correctly transferred into byte array? Or should we use InputStreamReader? An example would be a great help.
Thanks in advance.
I would like to send a byte array read from InputStream to another app where they are converted to UTF-8. In brief
-Read input stream which comes in UTF-8 into a byte array
-Send byte array to another app which will convert it into UTF-8 characters
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How to create an inputStream of UTF-8 encoding for a bufferedReader
Hi all,
I would like to ask if an inputStream of UTF-8 encoding can be created?
I have a function
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but this function cannot be changed, how to make sure the inputStream is UTF-8 or there's no such method?
Thanks so much!I would like to send a byte array read from InputStream to another app where they are converted to UTF-8. In brief
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How to read data from an internal table into a real table?
Hello experts,
I'm relatively new to ABAP and I'm trying to figure out how to read data from an internal table into a table that I created. I'm trying to use the RRW3_GET_QUERY_VIEW_DATA function module to read data from a multiprovider. I'm trying to read data from the e_cell_data and e_axis_data tables into a table that I've already created. Please see code below.
TABLES MULTITAB.
DATA:
query_name TYPE RSZCOMPID,
s_cubename TYPE RSINFOPROV,
t_cell_data TYPE RRWS_T_CELL,
t_axis_data TYPE RRWS_THX_AXIS_DATA,
t_axis_info TYPE RRWS_THX_AXIS_INFO,
wa_t_cell_data like line of t_cell_data,
wa_t_axis_data like line of t_axis_data,
w_corp_tab like line of t_cell_data.
s_cubename = 'CORP_MPO1'.
query_name = 'Z_corp_test'.
CALL FUNCTION 'RRW3_GET_QUERY_VIEW_DATA'
EXPORTING
i_infoprovider = s_cubename
i_query = query_name
i_t_parameter = query_string_tab
IMPORTING
e_cell_data = t_cell_data
e_axis_data = t_axis_data
e_axis_info = t_axis_info.
If anyone has any information to help me, I would greatly appreciate it. Thanks.Hi,
<li>Once you call the function module RRW3_GET_QUERY_VIEW_DATA, lets say data is available in the corresponding tables e_cell_data e_axis_data which you have mentioned.
<li>Modify your internal table defined for other purpose, with data from e_cell_data e_axis_data like below.
LOOP AT t_cell_data INTO wa_t_cell_data.
"Get the required data from t_cell_data.
MOVE-CORRESPONDING wa_t_cell_data TO it_ur_tab.
"Modify your internal table wih data
MODIFY it_ur_tab TRANSPORTING <field1> <field2> <field3>.
ENDLOOP.
LOOP AT t_axis_data INTO wa_t_axis_data.
"Get the required data from t_cell_data.
MOVE-CORRESPONDING wa_t_axis_data TO it_ur_tab.
"Modify your internal table wih data
MODIFY it_ur_tab TRANSPORTING <field1> <field2> <field3>.
ENDLOOP.
Thanks
Venkat.O -
How to read .html file and store values into oracle table from html file
Hi all ,
How to read .html file and store values into oracle table from html file using pl/sql
Please Help.....Hi,
Kindly find following sample html code ,i want to store every value in different column in database .
<html><body><p/>
<div style="position:absolute;top:47px;left:37px;font-family:'Times New Roman';font-size:10pt;white-space:nowrap;">
</div>
<div style="position:absolute;top:47px;left:680px;font-family:'Times New Roman';font-size:10pt;white-space:nowrap;">
</div>
<div style="position:absolute;top:94px;left:151px;font-family:'Times New Roman';font-size:1pt;white-space:nowrap;">
</div>
<div style="position:absolute;top:1080px;left:115px;font-family:'Times New Roman';font-size:8pt;white-space:nowrap;">4497743
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<div style="position:absolute;top:1079px;left:442px;font-family:'Times New Roman';font-size:9pt;white-space:nowrap;"> Miclyn Express Offshore Pre-Quotation Disclosure
</div>
<div style="position:absolute;top:1079px;left:680px;font-family:'Times New Roman';font-size:9pt;white-space:nowrap;">
</div>
<div style="position:absolute;top:1079px;left:723px;font-family:'Times New Roman';font-size:9pt;white-space:nowrap;">page 5
</div>
<div style="position:absolute;top:1083px;left:151px;font-family:'Times New Roman';font-size:1pt;white-space:nowrap;">
</div>
<div style="position:absolute;top:107px;left:151px;font-family:'Times New Roman';font-size:10pt;white-space:nowrap;"><b>Attachment 2 ¿ indicative statement of 20 largest shareholders </b>
</div>
<div style="position:absolute;top:139px;left:262px;font-family:'Times New Roman';font-size:10pt;white-space:nowrap;"><b>Name </b>
</div>
<div style="position:absolute;top:131px;left:415px;font-family:'Times New Roman';font-size:10pt;white-space:nowrap;"><b>Number of Shares </b>
</div>
<div style="position:absolute;top:147px;left:458px;font-family:'Times New Roman';font-size:10pt;white-space:nowrap;"><b>Held </b>
</div>
<div style="position:absolute;top:131px;left:560px;font-family:'Times New Roman';font-size:10pt;white-space:nowrap;"><b>Percentage of </b>
</div>
<div style="position:absolute;top:147px;left:567px;font-family:'Times New Roman';font-size:10pt;white-space:nowrap;"><b>shares held </b>
</div>
<div style="position:absolute;top:179px;left:161px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">Macquarie Capital Group Limited 92,378,000
</div>
<div style="position:absolute;top:179px;left:531px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
</div>
<div style="position:absolute;top:179px;left:618px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">34.00%r
</div>
<div style="position:absolute;top:179px;left:663px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
</div>
<div style="position:absolute;top:212px;left:161px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">HSBC Custody Nominees (Australia)
</div>
<div style="position:absolute;top:227px;left:161px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">Limited
</div>
<div style="position:absolute;top:220px;left:464px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">36,458,220
</div>
<div style="position:absolute;top:220px;left:531px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
</div>
<div style="position:absolute;top:220px;left:618px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">13.42%
</div>
<div style="position:absolute;top:220px;left:663px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
</div>
<div style="position:absolute;top:260px;left:161px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">Ray Rider Limited 27,170,000
</div>
<div style="position:absolute;top:260px;left:531px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
</div>
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</div>
<div style="position:absolute;top:260px;left:663px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
</div>
<div style="position:absolute;top:300px;left:531px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
</div>
<div style="position:absolute;top:300px;left:625px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">7.96%
</div>
<div style="position:absolute;top:300px;left:663px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
</div>
<div style="position:absolute;top:333px;left:161px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">National Australia Bank Custodian
</div>
<div style="position:absolute;top:348px;left:161px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">Services
</div>
<div style="position:absolute;top:341px;left:464px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">12,866,550
</div>
<div style="position:absolute;top:341px;left:531px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
</div>
<div style="position:absolute;top:341px;left:625px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">4.74%
</div>
<div style="position:absolute;top:341px;left:663px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
</div>
<div style="position:absolute;top:381px;left:161px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">Citigroup Nominees Pty Ltd 6,942,541
</div>
<div style="position:absolute;top:381px;left:531px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
</div>
<div style="position:absolute;top:381px;left:625px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">2.56%r
</div>
<div style="position:absolute;top:381px;left:663px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
</div>
<div style="position:absolute;top:421px;left:531px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
</div>
<div style="position:absolute;top:421px;left:625px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">2.14%r
</div>
<div style="position:absolute;top:421px;left:663px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
</div>
<div style="position:absolute;top:462px;left:161px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">UBS Securities Australia Ltd 4,806,760
</div>
<div style="position:absolute;top:462px;left:531px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
</div>
<div style="position:absolute;top:462px;left:625px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">1.77%
</div>
<div style="position:absolute;top:462px;left:663px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
</div>
<div style="position:absolute;top:494px;left:161px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">Merrill Lynch Equities (Australia)
</div>
<div style="position:absolute;top:510px;left:161px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">Limited
</div>
<div style="position:absolute;top:502px;left:472px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">4,325,000
</div>
<div style="position:absolute;top:502px;left:531px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
</div>
<div style="position:absolute;top:502px;left:625px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">1.59%
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<div style="position:absolute;top:502px;left:663px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
</div>
<div style="position:absolute;top:550px;left:161px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">Equities Ltd
</div>
<div style="position:absolute;top:542px;left:472px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">4,150,000
</div>
<div style="position:absolute;top:542px;left:531px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
</div>
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<div style="position:absolute;top:542px;left:663px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
</div>
<div style="position:absolute;top:575px;left:161px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">Bond Street Custodians Limited - A/C
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<div style="position:absolute;top:590px;left:161px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">Institutional
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<div style="position:absolute;top:583px;left:472px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">2,750,000
</div>
<div style="position:absolute;top:583px;left:531px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
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<div style="position:absolute;top:583px;left:625px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">1.01%
</div>
<div style="position:absolute;top:583px;left:663px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
</div>
<div style="position:absolute;top:623px;left:161px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">Cogent Investment Operations Pty Ltd 2,599,321
</div>
<div style="position:absolute;top:623px;left:531px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
</div>
<div style="position:absolute;top:623px;left:625px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">0.96%
</div>
<div style="position:absolute;top:623px;left:663px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
</div>
<div style="position:absolute;top:663px;left:161px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">Skeet Nominees Pty Ltd 2,276,736
</div>
<div style="position:absolute;top:663px;left:531px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
</div>
<div style="position:absolute;top:663px;left:625px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">0.84%
</div>
<div style="position:absolute;top:663px;left:663px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
</div>
<div style="position:absolute;top:704px;left:161px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">Diederik de Boer 1,917,561
</div>
<div style="position:absolute;top:704px;left:531px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
</div>
<div style="position:absolute;top:704px;left:625px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">0.71%
</div>
<div style="position:absolute;top:704px;left:663px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
</div>
<div style="position:absolute;top:744px;left:161px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">Ecapital Nominees Pty Limited 1,594,736
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<div style="position:absolute;top:744px;left:531px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
</div>
<div style="position:absolute;top:744px;left:625px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">0.59%
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<div style="position:absolute;top:744px;left:663px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
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<div style="position:absolute;top:784px;left:472px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">1,594,7360
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<div style="position:absolute;top:784px;left:531px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
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<div style="position:absolute;top:784px;left:663px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
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<div style="position:absolute;top:825px;left:531px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
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<div style="position:absolute;top:865px;left:161px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">Argo Investments Limited 1,050,000
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<div style="position:absolute;top:865px;left:531px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">
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<div style="position:absolute;top:865px;left:625px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">0.39%
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<div style="position:absolute;top:905px;left:161px;font-family:'Times New Roman';font-size:11pt;white-space:nowrap;">Idameno (No 79) Nominees Pty Limited 724,210</div>
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Thanks.......................... -
How to read and upload microsoft word file into database using forms9i
Hi,
How to read and upload microsoft word file into oracle database using forms9i. I appretiate if anyone can send me example or atleast a sujjetion.
Thanks in advance
Mahesh RagineniThe webutil package includes the ability up upload from the client to the database. See otn.oracle.com/products/forms and click on webutil for more details.
Regards
Grant Ronald
Forms Product Management -
How to put a String into a byte array
How can i put a String into a byte array byte[]. So that i can send it to the serial port for output to an LCD display. Cheers David
javadocs for String
getBytes
public byte[] getBytes()
Encodes this String into a sequence of bytes using the platform's default charset, storing the result into a new byte array.
Returns:
The resultant byte arraySince:
JDK1.1 -
Reading in any file and converting to a byte array
Okay what I am trying to do is to write a program that will read in any file and convert it into a int array so that I can then manipulate the values of the int array and then re-write the file. Once I get the file into an int array I want to try and compress the data with my own algorithm as well as try to write my own encryption algorithm.
What I have been looking for is code samples that essentially read in the file as a byte array and then I have been trying to convert that byte array into an int array which I could then manipulate. So does anyone have any sample code that essentially takes a file and converts it into an int array and then converts it back into a byte array and write the file. I have found code that is close but I guess I am just too new to this. Any help would be appreciated.You can read a whole file into a byte array like this:File f = new File("somefile");
int size = (int) f.length();
byte[] contents = new byte[size];
DataInputStream in = new DataInputStream(
new BufferedInputStream(new FileInputStream(f)));
in.readFully(contents);
in.close();Note that you need to add in the proper exception handling code. You could also use RandomAccessFile instead of the DataInputStream.
Writing a byte array to a file is easier; just construct the FileOutputStream, call write on it with the byte array, and close the stream. -
How to read xml file and place it into an internal table...
hello all,
can any one help me in - how to read xml data file (placed in application server) and placing the same into an internal table (remove the xml tags or say fetching the xml data without xml tags).Hi Murashali,
use this.
TYPES: BEGIN OF day,
name TYPE string,
work(1) TYPE c,
END OF day.
DATA: BEGIN OF week,
day1 TYPE day,
day2 TYPE day,
day3 TYPE day,
day4 TYPE day,
day5 TYPE day,
day6 TYPE day,
day7 TYPE day,
END OF week.
DATA xml_string TYPE string.
DATA result LIKE week.
week-day1-name = 'Monday'. week-day1-work = 'X'.
week-day2-name = 'Tuesday'. week-day2-work = 'X'.
week-day3-name = 'Wednesday'. week-day3-work = 'X'.
week-day4-name = 'Thursday'. week-day4-work = 'X'.
week-day5-name = 'Friday'. week-day5-work = 'X'.
week-day6-name = 'Saturday'. week-day6-work = ' '.
week-day7-name = 'Sunday'. week-day7-work = ' '.
CALL TRANSFORMATION ...
SOURCE root = week
RESULT XML xml_string.
CALL TRANSFORMATION ...
SOURCE XML xml_string
RESULT root = result.
Regards,
Vijay -
How to read aimage that is drawn in canvas as abyte array
hi,
i'm doing image procesing in j2me.i made a negative image form the original image and draw that in the canvas/now i want to save that image.for that i'm trying like this way: i tried to read that image as byte array and store that one to the rms.while trying to read the image it throws some exception like this:
java.lang.IllegalArgumentException:
at javax.microedition.lcdui.ImmutableImage.<init>(+11)
at javax.microedition.lcdui.Image.createImage(+40)
at can.commandAction(+112)
at javax.microedition.lcdui.Display$DisplayAccessor.commandAction(+282)
at javax.microedition.lcdui.Display$DisplayManagerImpl.commandAction(+10)
at com.sun.midp.lcdui.DefaultEventHandler.commandEvent(+68)
at com.sun.midp.lcdui.AutomatedEventHandler.commandEvent(+47)
at com.sun.midp.lcdui.DefaultEventHandler$QueuedEventHandler.run(+250)
canone know how do this please help me.i'm trying to save the image for the last one week.so please anyone help me
thanx in advancehere is my code:
public void paint(Graphics g)
if(!b1)
System.out.println("B1");
g.setColor(255,255,255);
g.fillRect(0,0,getWidth(),getHeight());
try
offImg=Image.createImage(getWidth(),getHeight());
off= offImg.getGraphics();
dukeImg=Image.createImage("/any41.jpg");
}catch(Exception rty){}
imgX=getWidth()/2;
imgY=getHeight()/2;
off.drawImage(dukeImg,imgX,imgY,0);
g.drawImage (offImg, imgX, imgY, Graphics.HCENTER | Graphics.VCENTER);
System.out.println("DukeImg" +offImg.isMutable());
else
negativeImage(g);
}//else if
}//paint
public void negativeImage(Graphics g)
System.out.println("Paint");
int rgb[]=new int[dukeImg.getWidth()*dukeImg.getHeight()];
dukeImg.getRGB(rgb,0,dukeImg.getWidth(),0,0,dukeImg.getWidth(),dukeImg.getHeight());
int rgb1[]=new int[rgb.length];
for(int i=0;i<rgb.length;i++)
rgb1=rgb[i] >>8;
rgb1[i]=255-rgb1[i];
}//for
g.setColor(255,255,255);
g.fillRect(0,0,getWidth(),getHeight());
g.setColor(0,0,0);
g.drawString("Negative Image ",80,80,Graphics.TOP | Graphics.LEFT);
Image offscreen=Image.createImage(getWidth(),getHeight());
Graphics grap=offscreen.getGraphics();
image=Image.createRGBImage(rgb1,dukeImg.getWidth(),dukeImg.getHeight(),false);
grap.drawImage(image,getWidth()/2,getHeight()/2,0);
g.drawImage(offscreen,getWidth()/2,getHeight()/2,Graphics.HCENTER|Graphics.VCENTER);
x = offscreen.getWidth();
y = offscreen.getHeight();
System.out.println("x "+x+"Y "+y);
System.out.println("Created " + offscreen.isMutable());
public void commandAction(Command cod,Displayable dis)
if(cod==open)
b1=true;
}//if
else if(cod==save)
try
int len=x*y;
System.out.println("length "+ len);
imgByte = new byte[10240];
is = new ByteArrayInputStream(imgByte,0,imgByte.length);
is.read(imgByte,0,imgByte.length);
Form form = new Form("Save Image");
im = Image.createImage(imgByte, 0, imgByte.length);
form.append(im);
Display.getDisplay(midlet).setCurrent(form);
}catch(Exception ww){}
if u have someother sample codes means then please send it to me.
thanx for ur response -
How to add 16 bit message sequential number to the byte array
hi
iam trying to implement socket programming over UDP. Iam writing for the server side now.I need to send an image file from server to a client via a gateway so basically ive to do hand-shaking with the gateway first and then ive to send image data in a sequence of small messages with a payload of 1 KB.The data message should also include a header of 16 bit sequential number and a bit to indicate end of file.
Iam able to complete registration process(Iam not sure yet).I dnt know how to include sequential number and a bit to indicate end of file.
I would like to have your valuable ideas about how to proceed further
package udp;
import java.io.*;
import java.net.*;
import java.util.*;
public class Sender {
protected BufferedReader in = null;
protected FileInputStream image=null;
protected static boolean end_of_file=true;
/** pass arguments hostname,port,filename
* @param args
* @throws IOException
public static void main(String[] args) throws IOException{
DatagramSocket socket = new DatagramSocket(Integer.parseInt(args[1]));
boolean more_messages = true;
String str1=null;
* gateway registration
try{
//send string to emulator
String str="%%%GatewayRegistration SENDER test delay 10 drop 0 dupl 0 bandwidth 1000000";
byte[] buff=str.getBytes();
InetAddress emulator_address = InetAddress.getByName(args[0]);
DatagramPacket packet = new DatagramPacket(buff, buff.length,emulator_address,Integer.parseInt(args[0]));
socket.send(packet);
// figure out response
byte[] buf = new byte[1024];
DatagramPacket recpack=new DatagramPacket(buf,buf.length);
socket.receive(recpack);
// socket.setSoTimeout(10000);
String str2=str1.valueOf(new String(recpack.getData()));
if(socket.equals(null))
System.out.println("no acknowledgement from the emulator");
socket.close();
else if(str2=="%%%GatewayConfirmation")
// String str1=null;
System.out.println("rec message"+str2);
else
System.out.println("not a valid message from emulator");
socket.close();
catch (IOException e) {
e.printStackTrace();
end_of_file = false;
/**create a packet with a payload of 1 KB and header of 16 bit sequential number and a bit to indicate end of file
while(end_of_file!=false)
String ack="y";
String seqnum=
File file = new File(args[2]);
InputStream is = new FileInputStream(file);
socket.close();
private byte[] byteArray(InputStream in) throws IOException {
byte[] readBytes = new byte[1024]; // make a byte array with a length equal to the number of bytes in the stream
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return readBytes;
HI Rolf.k.
Thank you for the small program it was helpfull.
You got right about that proberly there will be conflict with some spurios data, I can already detect that when writing the data to a spreadsheet file.
I writes the data in such a way, that in each line there will be a date, a timestamp, a tab and a timestamp at the end. That means two columns.
When i set given samplerate up, that controls the rate of the data outflow from the device, (1,56 Hz - 200 Hz), the data file that i write to , looks unorderet.
i get more than one timestamp and severel datavalues in every line and so on down the spreadsheet file.
Now the question is: Could it be that the function that writes the data to the file, can't handle the speed of the dataflow in such a way that the time stamp cant follow with the data flowspeed. so i'm trying to set the timestamp to be with fractions of the seconds by adding the unit (<digit>) in the timestamp icon but its not working. Meaby when i take the fractions off a second within the timestamp i can get every timestamp with its right data value. Am i in deeb water or what do You mean!??
AAttached Pics part of program and a logfile over data written to file
regards
Zamzam
HFZ
Attachments:
DataFlowWR.JPG 159 KB
Datalogfile.JPG 386 KB -
How to get password as string back from encrypted password byte array.
Hi All,
I am storing encrypted password and enc key in the database.(Code included encryptPassword method for encryption and validatePassword method for validating of password). Problem is that for some reason i need to show user's password to the user as a string as he/she entered. But i am not able to convert the encrypted password from D/B to original String.
Tell me if any body know how to get the string password back from the encrypted password byte array after seeing my existing encryption code.
//********* Code
private Vector encryptPassword(byte[] arrPwd)
try
// parameter arrPwd is the password as entered by the user and to be encrypted.
byte[] encPwd = null;
byte[] key = null;
/* Generate a key pair */
KeyPairGenerator keyGen = KeyPairGenerator.getInstance("DSA", "SUN");
SecureRandom random = SecureRandom.getInstance("SHA1PRNG", "SUN");
keyGen.initialize(1024, random);
KeyPair pair = keyGen.generateKeyPair();
PrivateKey priv = pair.getPrivate();
PublicKey pub = pair.getPublic();
/* Create a Signature object and initialize it with the private key */
Signature dsa = Signature.getInstance("SHA1withDSA", "SUN");
dsa.initSign(priv);
/* Update and sign the data */
dsa.update(arrPwd, 0, 12);
/* Now that all the data to be signed has been read in, generate a signature for it */
encPwd = dsa.sign();
/* Now realSig has the signed password*/
key = pub.getEncoded();
Vector vtrPwd = new Vector(2);
vtrPwd.add(encPwd);
vtrPwd.add(key);
return vtrPwd;
catch (Exception e)
private boolean validatePassword(byte[] arrPwd,byte[] encPwd,byte[] key) throws RemoteException
try
// arrPwd is the byte array of password entered by user.
// encPwd is the encrypted password retreived from D/B
// key is the array of key through which the password was encrypted and stored.
X509EncodedKeySpec KeySpec = new X509EncodedKeySpec(key);
KeyFactory keyFactory = KeyFactory.getInstance("DSA", "SUN");
PublicKey pubKey = keyFactory.generatePublic(KeySpec);
/* Encrypt the user-entered password using the key*/
Signature sig = Signature.getInstance("SHA1withDSA", "SUN");
sig.initVerify(pubKey);
/* Update and sign the password*/
sig.update(arrPwd, 0, 12);
return sig.verify(encPwd);
catch (Exception e)
Help upto any extent would be appreciated.
Thanx
Moti SinghHi All,
I am storing encrypted password and enc key in the
database.(Code included encryptPassword method for
encryption and validatePassword method for validating
of password). Problem is that for some reason i need
to show user's password to the user as a string as
he/she entered. But i am not able to convert the
encrypted password from D/B to original String.No, you are not encrypting the password in your code, you are merely signing it.
Tell me if any body know how to get the string
password back from the encrypted password byte array
after seeing my existing encryption code.It is impossible to retrieve the original text out of a signature.
You should read up on some encryption basics in order to understand the difference between signing and encrypting. Then you can find examples of how to encrypt something here: http://java.sun.com/j2se/1.4/docs/guide/security/jce/JCERefGuide.html.
Actually there is one class specifically for keeping keys secure, KeyStore http://java.sun.com/j2se/1.4/docs/api/java/security/KeyStore.html
- Daniel -
Read words from a text file into an undefined array
Dear all,
Does anyone know how to read words in text file, seperated by all types of spaces ("_", "\n", "\t","\r","\f") and put them into a string array to be used later?
So far I can read the words using the Tokenizer but can't assign to array:
public class reader
StringTokenizer tokenizer = new StringTokenizer(input);
String[ ] array= null; //unknown size of array
int i=0;
while(tokenizer.hasMoreTokens())
array[i] = tokenizer.nextToken();
i++;
Any suggestions welcome!
thanks in advance!Hi
sorry wrote in a hurry ;) din c the problem clearly
there are two approaches
1) best approach for your problem is Vector or ArrayList, these would make life easy for you.
Always collections are better approach over arrays when the size is dynamic. However in your case the size cant be said to be DYNAMIC. coz the number of words will not grow / shrink during the runtime.. i know that number of words are not fixed but dynamic is something which will grow/shrink during runtime. but still collection is better approach.
2)dirty approach
use double dimensional array
String arr[][] = null;
then use one tokenizer for StringTokenizer(str,"\n");
using countTokens on this will give you number of lines.
use this to initialize array
arr = new String[lineCount][];
then iterate from 1 to lineCount and use 1 more tokenizer to get number of words for that line. use this number to initialize the column size for arr[i] like
arr[i] = new String[wordCount];
then store the token using nested for loops in this array
go for the 1st one ;) 2nd one is hedious n time consuming but both will work ;)
cheers
amey -
How to read the data file and write into the same file without a temp table
Hi,
I have a requirement as below:
We are running lockbox process for several business, but for a few businesses we have requirement where in we receive a flat file in different format other than how the transmission format is defined.
This is a 10.7 to 11.10 migration. In 10.7 the users are using a custom table into which they are first loading the raw data and writing a pl/sql validation on that and loading it into a new flat file and then running the lockbox process.
But in 11.10 we want to restrict using temp table how can we achieve this.
Can we read the file first and then do validations accordingly and then write to the same file and process the lockbox.
Any inputs are highly appreciated.
Thanks & Regards,
Lakshmi Kalyan Vara Prasad.Hello Gurus,
Let me tell you about my requirement clearly with an example.
Problem:
i am receiving a dat file from bank in below format
105A371273020563007 07030415509174REF3178503 001367423860020015E129045
in this detail 1 record starting from 38th character to next 15 characters is merchant reference number
REF3178503 --- REF denotes it as Sales Order
ACC denotes it as Customer No
INV denotes it as Transaction Number
based on this 15 characters......my validation comes.
If i see REF i need to pick that complete record and then fill that record with the SO details as per my system and then submit the file for lockbox processing.
In 10.7 they created a temporary table into which they are loading the data using a control file....once the data is loaded into the temporary table then they are doing a validation and updating the record exactly as required and then creating one another file and then submitting the file for lockbox processing.
Where as in 11.10 they want to bypass these temporary tables and writing it into a different file.
Can this be handled by writing a pl/sql procedure ??
My findings:
May be i am wrong.......but i think .......if we first get the data into ar_payments_interface_all table and then do the validations and then complete the lockbox process may help.
Any suggestions from Oracle GURUS is highly appreciated.
Thanks & Regards,
Lakshmi Kalyan Vara Prasad. -
Could anyone tell me how to read 4 lines altogether and insert into table
Hi ,
I want to load the below data into table by using sql loader.
First 4 lines should insert in one single row in table and again it should from '01' load the next 4 lines in another row.
01suresh
02works
03in
04bankok
01kumar
02works
03in
04abudabi
01Raju
02works
03in
04france
Could you please give me some suggestion how i can accomplish it.
Thanks in advance.
Regards,
Vinouser1142030 wrote:
First 4 lines should insert in one single row in table and again it should from '01' load the next 4 lines in another row.Not a problem, use CONTINUEIF. Control file:
LOAD DATA
INFILE *
REPLACE
CONTINUEIF NEXT PRESERVE(1:2) != "01"
INTO TABLE continueif
TRAILING NULLCOLS
DUMMY FILLER POSITION(1:2),
COL1 TERMINATED BY '02',
COL2 TERMINATED BY '03',
COL3 TERMINATED BY '04',
COL4 TERMINATED BY '01'
BEGINDATA
01suresh
02works
03in
04bankok
01kumar
02works
03in
04abudabi
01Raju
02works
03in
04france Now:
SQL> create table continueif(
2 col1 varchar2(10),
3 col2 varchar2(10),
4 col3 varchar2(10),
5 col4 varchar2(10)
6 )
7 /
Table created.
SQL> host sqlldr scott@orcl/tiger control=c:\temp\continueif.ctl log=c:\temp\continueif.log
SQL> select * from continueif
2 /
COL1 COL2 COL3 COL4
suresh works in bankok
kumar works in abudabi
Raju works in france
3 rows selected.
SQL> SY.
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