Decoding in BSP

Hi
I am passing a encoding parameter into BSP using java.net.URLencoder class.
How to decode the parameter in BSP which is encoded in java using java encoder class.
Regards,
puneet aggarwal

I am using the code as
l_fname = request->get_form_field( name = 'UserID' ).
clear l_bpartner.
 call function 'Z_CRM_BP_GETNUMBER'
 exporting
 lv_username = l_fname
 importing
 lv_bpartner = l_bpartner.
 if l_bpartner is not initial.
 l_fname = l_bpartner.
 exit.
 endif.
In this case I am passing the UserId as java encoded parameter.
Can you please send me the code for how to convert it into BSP in decoded form.
Thanks
Puneet Aggarwal

Similar Messages

RFC Call through BSP - Issue with RFC logon credentials

Hi everyone,
I have an BSP application running on a 6.40 which calls a RFC function module on a backend system (4.6c) using a trusted RFC connection.
The BSP is started with an URL which contains in encoded form the username and password. So we don't use the standard sap-username & sap-password.
In the first step the user is logged in with the anonym user (user type 'service') which is entered in the SICF. So sy-uname = 'anonym'.
After a couple of checks and verifications the BSP makes a user switch using 'SUSR_INTERNET_USERSWITCH'. Exporting parameters are the now decoded values from the URL. So after the switch sy-uname is e.g. 'blabla'.
Now a function module on the backend system is called. What I would now expect is that on the backend system sy-uname is also 'blabla'. But it isn't. The sy-uname is still 'anonym', which isn't very helpful regarding object authority checks.
Only after an reload of the BSP page and a second RFC call of the function module the sy-uname = 'blabla'.
I wonder what causes this problem?
Thanks for your replies & regards
Kruno

Hi,
I solved it.
Before I execute function 'SUSR_INTERNET_USERSWITCH' I first check if user has a valid backend account by using function module 'BAPI_USER_EXISTENCE_CHECK'.
And this is the problem. When 'BAPI_USER_EXISTENCE_CHECK' is executed once all other RFC function calls to the backend get the wrong user.
Why? I don't know yet. Maybe I will get an useful anwer from an OSS note.

Print Problem in Appraisal BSP HAP_DOCUMENT

Hi,
I'am using HAP_DOCUMNET Biving SP's for appraisal.I created BSP iviews in EP and i'am using them.
There is a problem i'am facing in this BSP's,when i click on PRINT after creating Appraisal,it will ask me to either open or save in pdf.
But when i open or save it and open it is giving me this message in Adobe
"Acrobat could not open u2018webforms.pdfu2019 because it is either not a supported file type or because the file has been corrupted (for example, it was sent as an email attachment and wasnu2019t correctly decoded).
To create an Adobe PDF document, go to the source application. Then print the document to Adobe PDF."
Any body please guide me with a solution.
With Regards,
Pradeep.B

hi ,
the probelm with adobe (pdf) only(.i.e. pdf attachments are damaged or something) so, check the below links to get more info regrding above error...
http://www.computing.net/answers/windows-xp/pdf-error-acrobat-could-not-open/118542.html
http://forum.planetpdf.com/wb/default.asp?action=9&fid=6&read=62004
http://www.acrobatusers.com/forums/aucbb/viewtopic.php?id=6911
thnx
suriya

H.264 DirectShow decoding in WEC2013

We are developing a WEC2013 device based on the i.MX6 processor family.
I need to be able to playback H.264 encoded video, but I can see from
this page that the BSP does not support H.264. Does anyone know of any third parties that will provide H.264 support for the i.MX6 and WEC2013?
And if no third parties provide that support, where would one get started (documentation) to write a DirectShow filter that would use the on board H.264 decoder?

Someone asked me for an update via email so I just realized that I forgot to post as I promised. It's working out pretty good. I can play 1080p h264 movies using mplayer with only about 10-30% use of my 3.0 P4 HT CPU using VDPAU. I wasn't able to get it (x.264 GPU decoding) to work with vlc or the system ffmpeg though. At least when I set this up many months ago. So if anyone is just looking to be able to play 1080p h264 videos I definitely would give a VDPAU capable PCI card a shot if you have no other viable choices for your old hardware. Using mplayer with VDPAU properly configured I don't experience any stuttering at all on my old hardware, believe it or not.
03:00.0 VGA compatible controller: nVidia Corporation G98 [GeForce 8400 GS] (rev a1) (prog-if 00 [VGA controller])
Subsystem: Device 19f1:0a5e
Flags: bus master, fast devsel, latency 0, IRQ 21
Memory at fb000000 (32-bit, non-prefetchable) [size=16M]
Memory at e0000000 (64-bit, prefetchable) [size=256M]
Memory at f8000000 (64-bit, non-prefetchable) [size=32M]
I/O ports at ec00 [size=128]
[virtual] Expansion ROM at fafe0000 [disabled] [size=128K]
Capabilities: [60] Power Management version 3
Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+
Capabilities: [78] Express Endpoint, MSI 00
Kernel driver in use: nvidia
Kernel modules: nvidia, nouveau, nvidiafb
Last edited by davidm (2010-10-28 20:07:36)

BSP Url encoding

Hi all!
I'd like to use URL encoding (I guess base64) to mask url parameters in our URL (instead of default.htm?param1=value&param2=value etc.) to prevent URL manipulation. In most parts of our application we use PopUp-Windows without the location bar of the browser, but we have email links to workitems which launch BSPs and these new opened browser windows do have a location bar and a URL which can be manipulated.
How do you set up URL encoding in your BSP application? (entries in the BSP service of /sicf for example or BSP Application Attributes ?). Is there a way to encode the only parts of the application? How to use and when the if_http_utility->en/decode_base64 methods?
best regards,
Christoph

did you try the following?
ex. you have page a.htm and from there you are calling page b.htm with params param1 and param2.
use
CALL METHOD cl_http_utility=>if_http_utility~encode_base64
 EXPORTING
 unencoded = param1value
 receiving
 encoded = param1value .
and pass this as the value for param1 and call the URL for page b.htm.
and within page b.htm decode it and use .
CALL METHOD cl_http_utility=>IF_HTTP_UTILITY~DECODE_BASE64 EXPORTING
 encoded = param1value
 receiving
 decoded = param1value .
Sample application:
Create a BSP application withe two pages a.htm and b.htm
and have a page attribute called name in both the pages.
a.htm layout code
<%@page language="abap"%>
<%@extension name="htmlb" prefix="htmlb"%>
<htmlb:content design="design2003">
<htmlb:page title = " ">
 <htmlb:form>
<%
if name is initial .
name = sy-uname .
endif .
%>
 <htmlb:textView text = "<%= name %>"
 design = "EMPHASIZED" />
<%
CALL METHOD cl_http_utility=>if_http_utility~encode_base64
 EXPORTING
 unencoded = name
 receiving
 encoded = name .
%>
 <htmlb:button text = "Press Me"
 onClientClick = "javascript:window.open('b.htm?name=<%= name %>');" />
 </htmlb:form>
</htmlb:page>
</htmlb:content>
b.htm layout code
<%@page language="abap"%>
<%@extension name="htmlb" prefix="htmlb"%>
<htmlb:content design="design2003">
<htmlb:page title = " ">
 <htmlb:form>
<%
CALL METHOD cl_http_utility=>if_http_utility~DECODE_BASE64
 EXPORTING
 encoded = name
 receiving
 decoded = name .
%>
 <htmlb:textView text = "<%= name %>"
 design = "EMPHASIZED" />
 </htmlb:form>
</htmlb:page>
</htmlb:content>
Hope this helps.
Regards
Raja

BSP Application, URL for webreport

Hello all,
I am trying to analyze a BSP application, which is used for Management cockpit, developed using BSP and WAD(webtemplates).
i found, in Tcode SICF, one HTTP service has been created for the BSP application and External alias also created for this HTTP service. This exteranl alias is used in the fallowing url, which executes the Management cockpit in the browser.
http://<Servername>:8080/<HTTP service External alias>(bD1lbiZjPTEwMA==)/default.htm
Now i have one question in the above URL, What is the meaning of "(bD1lbiZjPTEwMA==)" in the above URL...?
Thanks
kumar

Hi Amie,
the encoded string is the mangled code and contains information about language, client and other parameters you send with the URL. You can decode the mangled code with the program BSP_DECODE_URL. Be aware that you can't switch off this mangled code in the URL.
See also
BSP In-Depth: URL Mangling
/people/brian.mckellar/blog/2003/09/30/bsp-in-depth-url-mangling
Regards,
Rainer

Portal Style to BSP

Hi,
I have a BSP application inside a Portal IView, when the iView is created, there is an option to pass the Portal style to the BSP app, and it works fine. But, when the BSP in the iView call another BSP application the Portal style is lost. is it possible to use the same Portal Style in the second BSP application? Can i pass this style to other BSP application?
Thanks in advance,
Best Regards,
Mario Cristóbal.

If the BSP application uses the HTMLB library the theme can be changed using the sap-themeroot URL parameter.
Normally the portal does use it.
I'm not an expert in the portal setting, probably there is the option for iView for doing this.
You can check if the theme root is passed correctly to BSP:
- Open the BSP page properties and copy the URL into clipboard.
- Start this decoder: http://home.arcor.de/artem.gratchev/lj/B64codec.htm (it automatically takes the URL from clipboard and decodes it at once after start)
- See at the bottom of the page the parameter p itmust contain the whole theme root URL

Logical Operations in SQL decode function ?

Hi,
Is it possible to do Logical Operations in SQL decode function
like
'>'
'<'
'>='
'<='
'<>'
not in
in
not null
is null
eg...
select col1 ,order_by,decode ( col1 , > 10 , 0 , 1)
from tab;
select col1 ,order_by,decode ( col1 , <> 10 , 0 , 1)
from tab;
select col1 ,order_by,decode ( col1 , not in (10,11,12) , 0 , 1)
from tab;
select col1 ,order_by,decode ( col1 ,is null , 0 , 1)
from tab;
Regards,
infan
Edited by: user780731 on Apr 30, 2009 12:07 AM
Edited by: user780731 on Apr 30, 2009 12:07 AM
Edited by: user780731 on Apr 30, 2009 12:08 AM
Edited by: user780731 on Apr 30, 2009 12:08 AM
Edited by: user780731 on Apr 30, 2009 12:09 AM

example:
select col1 ,order_by,case when col1 > 10 then 0 else 1 end
from tab;
select col1 ,order_by,case when col1 <> 10 then 0 else 1 end
from tab;
select col1 ,order_by,case when col1 not in (10,11,12) then 0 else 1 end
from tab;As for testing for null, decode handles that by default anyway so you can have decode or case easily..
select col1 ,order_by,decode (col1, null , 0 , 1)
from tab;
select col1 ,order_by,case when col1 is null then 0 else 1 end
from tab;

USING NULL AND SELECT ALL IN DECODE

COL1 has the following values:
COL1
====
A
B
C
A
B
C
A
D
D
SELECT COL1 FROM TABLE1 WHERE COL1 =
DECODE(:VAL1, 'A', 'AA', 'B', 'BB', 'C', 'CC', 'D', 'DD')
1. what about the null values ? how can I add to the above statements when I enter null for the parameter :VAL1
2. what about all the values in COL1, what shall I enter for :VAL1 ?
THANKS.

SELECT COL1 FROM TABLE1
WHERE nvl(COL1,0) = DECODE(:VAL1, 'A', 'AA', 'B', 'BB', 'C', 'CC', 'D', 'DD',null,0)
Can we use in this way?
Shishu Paul
Chandigarh-India

Clearing values from request in decode method

I am using a custom table paginator. In its decode method I have the next code to control whether next link is clicked:
String pLink = (String)requestMap.get("pLink" + clientId);
if ((pLink != null) && (!pLink.equals(""))) {
     if (pLink.equals("next")) {
     } else if (pLink.equals("previous")) {
}But the next sequence produces some problems:
1.     Initial page load.
2.     Click on next link.
3.     Table navigates ok to next page.
4.     Reload page (push F5).
5.     The previous click still remains in the request, so decode method think next link is pressed again.
6.     Application abnormal behaviour arises.
So, I am trying to clear the next_link key from the request, but next code throws an UnsupportedOperationException:
String pLink = (String)requestMap.get("pLink" + clientId);
if ((pLink != null) && (!pLink.equals(""))) {
     if (pLink.equals("next")) {
     } else if (pLink.equals("previous")) {
     requestMap.put("pLink" + clientId, "");
}Do any of you have some ideas?

Hey, where are you RaymondDeCampo, rLubke, BalusC ... the masters of JSF Universe?
;-)

How can I open a PDF stored in IXOS and then display it in a BSP

Hello gurus,
I have created a PDF icon and an onclick action to open a pdf, that displays on every row of an assignment block in the actions column, but I do not know the technical process to determine how to get a PDF from the IXOS system from the line selected. (even if I know it depends on an ID attribute of that assignment block) I want to to call a transaction launcher with the url for the pdf in the IXOS that has an ID that identifies which line in the assignment block the user has clicked the pdf icon for (does that make sense?)
Therefore, I am assuming the PDF should correspond to the relance ID of the row in the assignment block, but I would like more information as per the business logic involved in able to achieve the desired results for this particular specification. I already confirmed that the XURL or any other attribute in the BOL object does not contain the URL to use for this. I have looked at the class I was told that it may contain the required business logic for determining which PDF in IXOS to fetch for a particular row, and I am currently trying to reverse engineer the logic through looking at other code and using the debugger, but so far I haven'T had much luck.
Here are some questions I have now for the functional side in the meantime:
1) Can we fetch the PDF in IXOS for each line of an assignment block?
2) Which URL should I call with the transaction launcher? a URL link to the PDF on the IXOS system??
3) Do we have to configure a transaction in the IMG to be launched?
4) Do we have to create a logical link there that I will make dynamic to call the right PDF for each table line?
5) Are there any existing examples of this or a similar functionality/ logic that I could refer to, preferably in CRM 7 WebUI?
6) Do you have any code to just display a PDF in a new window? Or prompt a download?
One possible way I thought of would be for me to have a logical link defined in the IMG, that I could call passing it different attributes (eg. some object id, etc) and then return the PDF and display it in the UI in a new browser window by itself. Alternatively, we can just prompt a download. What do you think would be the optimal behaviour here?
Please do not hesitate to propose any potential solution. Any partial answers/ links to wikis/ other threads, anything would be much appreciated.
Thank you in advance.
Best regards,
Jonathan Laplante

Hi,
I partially answered your question in another posting but I feel that you´re in the wrong forum for your problem. This is for BSP development and you talk about CRM.

GIF decoding

This works on WinXP but not Linux. Why? It takes the first frame of an animated gif and writes a thumbnail.
 GifDecoder d = new GifDecoder();
 try {
 fis = new FileInputStream(file);
 bis = new BufferedInputStream(fis);
 log.debug("reading gif");
 d.read(bis);
 log.debug("reading framecount");
 int n = d.getFrameCount();
 log.debug("read framecount" + n);
 for (int i = 0; i < 1; i++) {
 BufferedImage frame = d.getFrame(i); // frame i
 int t = d.getDelay(i); // display duration of frame in milliseconds
 log.debug("resizing frame");
 File gifoutputfile = new File("gif" + i + outputthumbFilename);
 BufferedImage bdest = new BufferedImage(60, 60, BufferedImage.TYPE_INT_RGB);
 Graphics2D g = bdest.createGraphics();
 AffineTransform at = AffineTransform.getScaleInstance((double) 60 / frame.getWidth(), (double) 60 / frame.getHeight());
 g.drawRenderedImage(frame, at);
 ImageIO.setUseCache(false);
 ImageIO.write(bdest, "GIF", new File(outputthumbFilename));
 } catch (FileNotFoundException e) {
 e.printStackTrace();
 } catch (IOException e) {
 e.printStackTrace();
import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.image.BufferedImage;
import java.awt.image.DataBufferInt;
import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.ArrayList;
* Class GifDecoder - Decodes a GIF file into one or more frames. 
* <pre>
* Example:
* GifDecoder d = new GifDecoder();
* d.read("sample.gif");
* int n = d.getFrameCount();
* for (int i = 0; i < n; i++) {
* BufferedImage frame = d.getFrame(i); // frame i
* int t = d.getDelay(i); // display duration of frame in milliseconds
* // do something with frame
* </pre>
* No copyright asserted on the source code of this class. May be used for any
* purpose, however, refer to the Unisys LZW patent for any additional
* restrictions. Please forward any corrections to [email protected].
* @author Kevin Weiner, FM Software; LZW decoder adapted from John Cristy's
* ImageMagick.
* @version 1.03 November 2003
public class GifDecoder {
 * File read status: No errors.
public static final int STATUS_OK = 0;
 * File read status: Error decoding file (may be partially decoded)
public static final int STATUS_FORMAT_ERROR = 1;
 * File read status: Unable to open source.
public static final int STATUS_OPEN_ERROR = 2;
protected BufferedInputStream in;
protected int status;
protected int width; // full image width
protected int height; // full image height
protected boolean gctFlag; // global color table used
protected int gctSize; // size of global color table
protected int loopCount = 1; // iterations; 0 = repeat forever
protected int[] gct; // global color table
protected int[] lct; // local color table
protected int[] act; // active color table
protected int bgIndex; // background color index
protected int bgColor; // background color
protected int lastBgColor; // previous bg color
protected int pixelAspect; // pixel aspect ratio
protected boolean lctFlag; // local color table flag
protected boolean interlace; // interlace flag
protected int lctSize; // local color table size
protected int ix, iy, iw, ih; // current image rectangle
protected Rectangle lastRect; // last image rect
protected BufferedImage image; // current frame
protected BufferedImage lastImage; // previous frame
protected byte[] block = new byte[256]; // current data block
protected int blockSize = 0; // block size
// last graphic control extension info
protected int dispose = 0;
// 0=no action; 1=leave in place; 2=restore to bg; 3=restore to prev
protected int lastDispose = 0;
protected boolean transparency = false; // use transparent color
protected int delay = 0; // delay in milliseconds
protected int transIndex; // transparent color index
protected static final int MaxStackSize = 4096;
// max decoder pixel stack size
// LZW decoder working arrays
protected short[] prefix;
protected byte[] suffix;
protected byte[] pixelStack;
protected byte[] pixels;
protected ArrayList frames; // frames read from current file
protected int frameCount;
static class GifFrame {
 public GifFrame(BufferedImage im, int del) {
 image = im;
 delay = del;
 public BufferedImage image;
 public int delay;
 * Gets display duration for specified frame.
 * @param n
 * int index of frame
 * @return delay in milliseconds
public int getDelay(int n) {
 delay = -1;
 if ((n >= 0) && (n < frameCount)) {
 delay = ((GifFrame) frames.get(n)).delay;
 return delay;
 * Gets the number of frames read from file.
 * @return frame count
public int getFrameCount() {
 return frameCount;
 * Gets the first (or only) image read.
 * @return BufferedImage containing first frame, or null if none.
public BufferedImage getImage() {
 return getFrame(0);
 * Gets the "Netscape" iteration count, if any. A count of 0 means repeat
 * indefinitiely.
 * @return iteration count if one was specified, else 1.
public int getLoopCount() {
 return loopCount;
 * Creates new frame image from current data (and previous frames as specified
 * by their disposition codes).
protected void setPixels() {
 // expose destination image's pixels as int array
 int[] dest = ((DataBufferInt) image.getRaster().getDataBuffer()).getData();
 // fill in starting image contents based on last image's dispose code
 if (lastDispose > 0) {
 if (lastDispose == 3) {
 // use image before last
 int n = frameCount - 2;
 if (n > 0) {
 lastImage = getFrame(n - 1);
 } else {
 lastImage = null;
 if (lastImage != null) {
 int[] prev = ((DataBufferInt) lastImage.getRaster().getDataBuffer()).getData();
 System.arraycopy(prev, 0, dest, 0, width * height);
 // copy pixels
 if (lastDispose == 2) {
 // fill last image rect area with background color
 Graphics2D g = image.createGraphics();
 Color c = null;
 if (transparency) {
 c = new Color(0, 0, 0, 0); // assume background is transparent
 } else {
 c = new Color(lastBgColor); // use given background color
 g.setColor(c);
 g.setComposite(AlphaComposite.Src); // replace area
 g.fill(lastRect);
 g.dispose();
 // copy each source line to the appropriate place in the destination
 int pass = 1;
 int inc = 8;
 int iline = 0;
 for (int i = 0; i < ih; i++) {
 int line = i;
 if (interlace) {
 if (iline >= ih) {
 pass++;
 switch (pass) {
 case 2:
 iline = 4;
 break;
 case 3:
 iline = 2;
 inc = 4;
 break;
 case 4:
 iline = 1;
 inc = 2;
 line = iline;
 iline += inc;
 line += iy;
 if (line < height) {
 int k = line * width;
 int dx = k + ix; // start of line in dest
 int dlim = dx + iw; // end of dest line
 if ((k + width) < dlim) {
 dlim = k + width; // past dest edge
 int sx = i * iw; // start of line in source
 while (dx < dlim) {
 // map color and insert in destination
 int index = ((int) pixels[sx++]) & 0xff;
 int c = act[index];
 if (c != 0) {
 dest[dx] = c;
 dx++;
 * Gets the image contents of frame n.
 * @return BufferedImage representation of frame, or null if n is invalid.
public BufferedImage getFrame(int n) {
 BufferedImage im = null;
 if ((n >= 0) && (n < frameCount)) {
 im = ((GifFrame) frames.get(n)).image;
 return im;
 * Gets image size.
 * @return GIF image dimensions
public Dimension getFrameSize() {
 return new Dimension(width, height);
 * Reads GIF image from stream
 * @param BufferedInputStream
 * containing GIF file.
 * @return read status code (0 = no errors)
public int read(BufferedInputStream is) {
 init();
 if (is != null) {
 in = is;
 readHeader();
 if (!err()) {
 readContents();
 if (frameCount < 0) {
 status = STATUS_FORMAT_ERROR;
 } else {
 status = STATUS_OPEN_ERROR;
 try {
 is.close();
 } catch (IOException e) {
 return status;
 * Reads GIF image from stream
 * @param InputStream
 * containing GIF file.
 * @return read status code (0 = no errors)
public int read(InputStream is) {
 init();
 if (is != null) {
 if (!(is instanceof BufferedInputStream))
 is = new BufferedInputStream(is);
 in = (BufferedInputStream) is;
 readHeader();
 if (!err()) {
 readContents();
 if (frameCount < 0) {
 status = STATUS_FORMAT_ERROR;
 } else {
 status = STATUS_OPEN_ERROR;
 try {
 is.close();
 } catch (IOException e) {
 return status;
 * Reads GIF file from specified file/URL source (URL assumed if name contains
 * ":/" or "file:")
 * @param name
 * String containing source
 * @return read status code (0 = no errors)
public int read(String name) {
 status = STATUS_OK;
 try {
 name = name.trim().toLowerCase();
 if ((name.indexOf("file:") >= 0) || (name.indexOf(":/") > 0)) {
 URL url = new URL(name);
 in = new BufferedInputStream(url.openStream());
 } else {
 in = new BufferedInputStream(new FileInputStream(name));
 status = read(in);
 } catch (IOException e) {
 status = STATUS_OPEN_ERROR;
 return status;
 * Decodes LZW image data into pixel array. Adapted from John Cristy's
 * ImageMagick.
protected void decodeImageData() {
 int NullCode = -1;
 int npix = iw * ih;
 int available, clear, code_mask, code_size, end_of_information, in_code, old_code, bits, code, count, i, datum, data_size, first, top, bi, pi;
 if ((pixels == null) || (pixels.length < npix)) {
 pixels = new byte[npix]; // allocate new pixel array
 if (prefix == null)
 prefix = new short[MaxStackSize];
 if (suffix == null)
 suffix = new byte[MaxStackSize];
 if (pixelStack == null)
 pixelStack = new byte[MaxStackSize + 1];
 // Initialize GIF data stream decoder.
 data_size = read();
 clear = 1 << data_size;
 end_of_information = clear + 1;
 available = clear + 2;
 old_code = NullCode;
 code_size = data_size + 1;
 code_mask = (1 << code_size) - 1;
 for (code = 0; code < clear; code++) {
 prefix[code] = 0;
 suffix[code] = (byte) code;
 // Decode GIF pixel stream.
 datum = bits = count = first = top = pi = bi = 0;
 for (i = 0; i < npix;) {
 if (top == 0) {
 if (bits < code_size) {
 // Load bytes until there are enough bits for a code.
 if (count == 0) {
 // Read a new data block.
 count = readBlock();
 if (count <= 0)
 break;
 bi = 0;
 datum += (((int) block[bi]) & 0xff) << bits;
 bits += 8;
 bi++;
 count--;
 continue;
 // Get the next code.
 code = datum & code_mask;
 datum >>= code_size;
 bits -= code_size;
 // Interpret the code
 if ((code > available) || (code == end_of_information))
 break;
 if (code == clear) {
 // Reset decoder.
 code_size = data_size + 1;
 code_mask = (1 << code_size) - 1;
 available = clear + 2;
 old_code = NullCode;
 continue;
 if (old_code == NullCode) {
 pixelStack[top++] = suffix[code];
 old_code = code;
 first = code;
 continue;
 in_code = code;
 if (code == available) {
 pixelStack[top++] = (byte) first;
 code = old_code;
 while (code > clear) {
 pixelStack[top++] = suffix[code];
 code = prefix[code];
 first = ((int) suffix[code]) & 0xff;
 // Add a new string to the string table,
 if (available >= MaxStackSize)
 break;
 pixelStack[top++] = (byte) first;
 prefix[available] = (short) old_code;
 suffix[available] = (byte) first;
 available++;
 if (((available & code_mask) == 0) && (available < MaxStackSize)) {
 code_size++;
 code_mask += available;
 old_code = in_code;
 // Pop a pixel off the pixel stack.
 top--;
 pixels[pi++] = pixelStack[top];
 i++;
 for (i = pi; i < npix; i++) {
 pixels[i] = 0; // clear missing pixels
 * Returns true if an error was encountered during reading/decoding
protected boolean err() {
 return status != STATUS_OK;
 * Initializes or re-initializes reader
protected void init() {
 status = STATUS_OK;
 frameCount = 0;
 frames = new ArrayList();
 gct = null;
 lct = null;
 * Reads a single byte from the input stream.
protected int read() {
 int curByte = 0;
 try {
 curByte = in.read();
 } catch (IOException e) {
 status = STATUS_FORMAT_ERROR;
 return curByte;
 * Reads next variable length block from input.
 * @return number of bytes stored in "buffer"
protected int readBlock() {
 blockSize = read();
 int n = 0;
 if (blockSize > 0) {
 try {
 int count = 0;
 while (n < blockSize) {
 count = in.read(block, n, blockSize - n);
 if (count == -1)
 break;
 n += count;
 } catch (IOException e) {
 if (n < blockSize) {
 status = STATUS_FORMAT_ERROR;
 return n;
 * Reads color table as 256 RGB integer values
 * @param ncolors
 * int number of colors to read
 * @return int array containing 256 colors (packed ARGB with full alpha)
protected int[] readColorTable(int ncolors) {
 int nbytes = 3 * ncolors;
 int[] tab = null;
 byte[] c = new byte[nbytes];
 int n = 0;
 try {
 n = in.read(c);
 } catch (IOException e) {
 if (n < nbytes) {
 status = STATUS_FORMAT_ERROR;
 } else {
 tab = new int[256]; // max size to avoid bounds checks
 int i = 0;
 int j = 0;
 while (i < ncolors) {
 int r = ((int) c[j++]) & 0xff;
 int g = ((int) c[j++]) & 0xff;
 int b = ((int) c[j++]) & 0xff;
 tab[i++] = 0xff000000 | (r << 16) | (g << 8) | b;
 return tab;
 * Main file parser. Reads GIF content blocks.
protected void readContents() {
 // read GIF file content blocks
 boolean done = false;
 while (!(done || err())) {
 int code = read();
 switch (code) {
 case 0x2C: // image separator
 readImage();
 break;
 case 0x21: // extension
 code = read();
 switch (code) {
 case 0xf9: // graphics control extension
 readGraphicControlExt();
 break;
 case 0xff: // application extension
 readBlock();
 String app = "";
 for (int i = 0; i < 11; i++) {
 app += (char) block;
if (app.equals("NETSCAPE2.0")) {
readNetscapeExt();
} else
skip(); // don't care
break;
default: // uninteresting extension
skip();
break;
case 0x3b: // terminator
done = true;
break;
case 0x00: // bad byte, but keep going and see what happens
break;
default:
status = STATUS_FORMAT_ERROR;
* Reads Graphics Control Extension values
protected void readGraphicControlExt() {
read(); // block size
int packed = read(); // packed fields
dispose = (packed & 0x1c) >> 2; // disposal method
if (dispose == 0) {
dispose = 1; // elect to keep old image if discretionary
transparency = (packed & 1) != 0;
delay = readShort() * 10; // delay in milliseconds
transIndex = read(); // transparent color index
read(); // block terminator
* Reads GIF file header information.
protected void readHeader() {
String id = "";
for (int i = 0; i < 6; i++) {
id += (char) read();
if (!id.startsWith("GIF")) {
status = STATUS_FORMAT_ERROR;
return;
readLSD();
if (gctFlag && !err()) {
gct = readColorTable(gctSize);
bgColor = gct[bgIndex];
* Reads next frame image
protected void readImage() {
ix = readShort(); // (sub)image position & size
iy = readShort();
iw = readShort();
ih = readShort();
int packed = read();
lctFlag = (packed & 0x80) != 0; // 1 - local color table flag
interlace = (packed & 0x40) != 0; // 2 - interlace flag
// 3 - sort flag
// 4-5 - reserved
lctSize = 2 << (packed & 7); // 6-8 - local color table size
if (lctFlag) {
lct = readColorTable(lctSize); // read table
act = lct; // make local table active
} else {
act = gct; // make global table active
if (bgIndex == transIndex)
bgColor = 0;
int save = 0;
if (transparency) {
save = act[transIndex];
act[transIndex] = 0; // set transparent color if specified
if (act == null) {
status = STATUS_FORMAT_ERROR; // no color table defined
if (err())
return;
decodeImageData(); // decode pixel data
skip();
if (err())
return;
frameCount++;
// create new image to receive frame data
image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB_PRE);
setPixels(); // transfer pixel data to image
frames.add(new GifFrame(image, delay)); // add image to frame list
if (transparency) {
act[transIndex] = save;
resetFrame();
* Reads Logical Screen Descriptor
protected void readLSD() {
// logical screen size
width = readShort();
height = readShort();
// packed fields
int packed = read();
gctFlag = (packed & 0x80) != 0; // 1 : global color table flag
// 2-4 : color resolution
// 5 : gct sort flag
gctSize = 2 << (packed & 7); // 6-8 : gct size
bgIndex = read(); // background color index
pixelAspect = read(); // pixel aspect ratio
* Reads Netscape extenstion to obtain iteration count
protected void readNetscapeExt() {
do {
readBlock();
if (block[0] == 1) {
// loop count sub-block
int b1 = ((int) block[1]) & 0xff;
int b2 = ((int) block[2]) & 0xff;
loopCount = (b2 << 8) | b1;
} while ((blockSize > 0) && !err());
* Reads next 16-bit value, LSB first
protected int readShort() {
// read 16-bit value, LSB first
return read() | (read() << 8);
* Resets frame state for reading next image.
protected void resetFrame() {
lastDispose = dispose;
lastRect = new Rectangle(ix, iy, iw, ih);
lastImage = image;
lastBgColor = bgColor;
int dispose = 0;
boolean transparency = false;
int delay = 0;
lct = null;
* Skips variable length blocks up to and including next zero length block.
protected void skip() {
do {
readBlock();
} while ((blockSize > 0) && !err());


Niklas wrote:
This works on WinXP but not Linux. Why? Please don't just post reams of code without providing more context and information.
How is it failing on Linux? Wrong results? What are they? Error messages? What do they say? You need to give us some place to start looking.

Any ideas on a nice BSP view pretty printer?

Hi there,
I am wondering whether somebody already tried to extend the SAP standard pretty printer by an own functionality which fits better for pages with mixed content, containing not only BSP-elements but also HTML-tags.
The standard pretty printer considers everything as plain text which is not a BSP-element and leaves it unaltered. Only BSP-elements are arranged according to their tree structure.
This produces ugly results for pages with mixed content.
1.) Requirement
A Pretty Printer for HTML-based BSP views should cover the following:
(a) HTML-Tags and BSP-elements together form the chain. As in following example:
<z:table table_id="testTab" binding="//test/gt_test" rows="5">
<z:tableBody position="top">
 <colgroup>
 <col width="4%">
 <col width="96%">
 </colgroup>
</z:tableBody>
<z:column name="type" header="<%=zcl_bsp_util=>dtel_text_s('EDI_TTYP')%>"
 listPos="10"/>
<z:column name="text" listPos="20"></z:column>
</z:table>
(b) Certain HTML formatting tags like I, B, etc. should not be added to the stack but be treated inline.
(c) HTML-attribute names should be converted to lower case, the attribute values should be quoted.
(d) Like for BSP-elements, there should be a threshold after which the attributes should appear in separate lines. Instead of a certain maximum "number of attributes", this could also be a maximum number of characters per line.
(e) Scripting Tags (<% ... %>) should start at a new line, if the content contains new-lines.
(f) Evaluation Scripting (<%= ... %>) should be inline, if they are contained within text nodes (and not within HTML oder BSP element nodes).
(g) The Pretty Printer should be parametrizable (with parameters like indent-depth,... ).
2.) Exits?
Of course, one could always use an external HTML editor and write an add-on for that editor which produces the desired result. Or one could take the view content into the clipboard, paste it into a plain text editor like UltraEdit or TextPad which allows external commands, apply an external, self-written pretty printer to it and then paste the result back into the View. But it would be easier to use the "Pretty Printer" button directly to get the result. Therefore the question arises at which point the standard Pretty Printer Functionality could be modified or extended.
I didn't find an exit. But the pretty-print itself is doubly-decoupled in the standard which minimizes the number of points where an extension has to be made:
2.a) First decoupling point: The Fcode handler method pretty_printer_ext( ) in cl_o2_page is calling
dynamically a method in cl_o2_co2_processor:
* call pretty printer
create object pp type ('CL_O2_CO2_PROCESSOR').
appl_str = me->pagekey-applname.
page_str = me->pagekey-pagekey.
try.
 CALL METHOD pp->('PRETTY_PRINT')
 EXPORTING
 indent = 2
 ATTRIBUTE_NORMALIZE = 'X'
 ATTRIBUTE_THRESHOLD = 2
 BSP_UNFORMATTED = source
 appl = appl_str
 page = page_str
 IMPORTING
 test_ok = test_ok
 BSP_FORMATTED = pp_source.
 catch cx_o2_co2_exception into o2ex.
2.b) Second decoupling point:
The method pretty_print() of class cl_o2_co2_processor (fancy names, by the way. It seems that many former chemistry students had joined the BSP team ),
there is a second delegation, to a local class, as follows:
data pretty type ref to LCL_BSP_PRETTY_PRINT.
pretty = LCL_BSP_PRETTY_PRINT=>getInstance( processor = me ).
The real logic for doing the Pretty Print, finally, is performed in this local class.
3.) Implementation.
Since, up to my knowledge, there is no HTML parser in the ABAP world,
the implementation could be based on existing HTML Parsers, like the Perl module Parser::HTML, or the Java package http://htmlparser.sourceforge.net/ . The pretty printer could then be called as external OS command.
Are there any ideas out there? Or is there somebody who already worked in this direction?
Regards,
Rüdiger

For those who are interested. I found out that the Dave Ragget's classic "HTML Tidy" (see <a href="http://tidy.sourceforge.net/">http://tidy.sourceforge.net/</a> ) is available in ABAP! There is a class CL_HTMLTIDY (at least here in my SAP_BASIS 700 system) which wraps calls of HTML Tidy by kernel modules.
The class is undocumented, but there are 2 OSS notes of this year for it, so it might well be that it is alive.
HTML Tidy can surely not directly be used for Pretty Printing BSP views, but for designing test cases or for doing things like HTML parsing, it might be a helpful tool.

Error in using PERFORM in eventhandler in a BSP Application.

Hi All,
Can we use Subroutines in BSP applications?
If yes then please help me with syntax .
Best Regards,
Anubhav.
Edited by: Anubhav Jain on Dec 20, 2007 10:52 PM

You can call subroutine with below Synatx:
DATA: progname(20) TYPE C VALUE 'YTESTINCLUDE' .
PERFORM your_perform_name IN PROGRAM (progname) IF FOUND.
"where your_perform_name is the form within the include program YTESTINCLUDE[/code]
Raja T
Edited by: Raja Thangamani on Dec 20, 2007 4:58 PM

Problem with index of numbers in BSP Front end

Hello All,
I am facing the below problem. Request your help.
Scenario: When I am trying to add the projects in the Front end , I am facing the problem with the index of numbering of the projects.
Example: If I am adding 6 projects ( at the max only 4 on each page i-e there are 2 pages ), then the index is wrongly numbered and the arrow (for direction of the pages) are wrongly displayed. The direction of the arrow is pointed to the next page rather pointing to the previous page and the index of numbering of the pages is wrong.
Request you to please suggest if this is any code fault in the table maintainance activity in the backend (BSP).

Hi Irina,
If you mean the number range is skipping 10 numbers in between runs then its because of the buffering in the number range.
To avoid the buffer influencing the number range, pass
'X' to the function module parameter: IGNORE_BUFFER.
This should resolve the problem.
Cheers,
Aditya

Decoding in BSP

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