Draw.jar Source Code

Hi,
Can anyone please tell me where can I get the source code for Java webstart Draw Demo( http://java.sun.com/products/javawebstart/demos.html) ?
Thanks

Sorry, I mean the source code(java files) of files in the Draw.jar,I would like see some samples to develop a drawing program.
Also any one knows what happened to the site http://java.oreilly.com/bite-size
Thanks,

Similar Messages

Where to download javaws.jar source code?

Does anyone know where to download latest javaws.jar source code?
I am debuging the JRE auto download, however the JWS client always report following error when try to download JRE from my intranet server.
Thanks a lot!
NLPException[category: ÏµÍ³ÅäÖÃ : Exception: null : LaunchDesc:
<jnlp spec="1.0+" codebase="http://localhost/jnlpExampleSite/jws/" href="http://localhost/jnlpExampleSite/jws/application2.jnlp">
<information>
    <title>My Application - Example 2</title>
    <vendor>My Company</vendor>
    <homepage href="http://localhost/jnlpExampleSite/"/>
    <description>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.</description>
    <icon href="http://localhost/jnlpExampleSite/jws/applicationIcon.gif" kind="default"/>
    <offline-allowed/>
</information>
<resources>
    <j2se href="http://localhost/jnlpExampleSite/jreInstaller/download" version="1.5.0_17"/>
    <jar href="http://localhost/jnlpExampleSite/jws/HelloWorldApp.jar" download="eager" main="false"/>
</resources>
<application-desc main-class="HelloWorldApp"/>
</jnlp> ]
     at com.sun.javaws.Launcher.handleApplicationDesc(Unknown Source)
     at com.sun.javaws.Launcher.handleLaunchFile(Unknown Source)
     at com.sun.javaws.Launcher.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)

Good eyes, that is the unicode charactor in Chinese, it should mean "Configuration".
The whole exception describe that it can't download specific JRE. But the JRE is on the web if I directly issue the link to http://localhost/jnlpExampleSite/http/download?arch=x86&os=Windows+vista&version-id=1.5.0_18&locale=en_GB&known-platforms=
I simply following the unofficial JRE download example on
http://sourceforge.net/project/showfiles.php?group_id=64065&package_id=84803&release_id=180414
Anyway, let me try the JaNeLA first, thanks a lot for your help!

Tools.jar Source Code

Hello
I am working on Multi Rebinding and Component mobility in a component programming framework.I need the source code of Tools.jar from where i can download the code of tools.jar. I have download the the Java SE 6 source code but i need the code of tools.jar

It's in the SCSL source code, but why do you think you need it?
And you don't need tools.jar at all for RMI.

Frmall.jar source code

Hi,
Does anyone know how to get the source code of frmall.jar, not the class files.
Thanks.

You can use JAD (java decompiler) to decompile classes in frmall.jar (since classes are not obfuscated)
1. unzip the frmall.jar to some directory
2. install a JAD (java decompiler)
3. run jad -s java *.class
For example this is a piece of oracle forms Main class
        if(mOracleLF && s5 != null && !s5.equals(""))
            boolean flag = false;
            if(s5.equalsIgnoreCase("Teal") || s5.equalsIgnoreCase("Titanium") || s5.equalsIgnoreCase("Red") || s5.equalsIgnoreCase("Khaki") || s5.equalsIgnoreCase("Blue") || s5.equalsIgnoreCase("Olive") || s5.equalsIgnoreCase("Purple") || s5.equalsIgnoreCase("BLAF"))
                LookAndFeel lookandfeel = UIManager.getLookAndFeel();
                ColorScheme acolorscheme[] = lookandfeel.getColorSchemes();
                for(int i = 0; i < acolorscheme.length; i++)
                    if(!acolorscheme.getName().equalsIgnoreCase(s5))
continue;
lookandfeel.setDefaultColorScheme(acolorscheme[i]);
flag = true;
break;
if(!flag)
showStatus("Illegal argument for colorScheme applet parameter");
throw new IllegalArgumentException("Illegal argument for colorScheme applet parameter");
FormsImageLoader.sharedInstance().setApplet(this);
initSplashscreen();
if(!getJDKVersion().startsWith("1.1") && !isVisible())
setVisible(true);
mDesktop = new FormDesktopContainer();
mMDIContainer = new MDIContainer(mDesktop, getLogo());
String s6 = getParameter("disableMDIScrollbars");
if(s6 != null && s6.equalsIgnoreCase("true"))
mDisableMDIScrollbars = true;
if(mDisableMDIScrollbars)
mMDIContainer.getMDIScrollBox().setHDisplayPolicy(2);
mMDIContainer.getMDIScrollBox().setVDisplayPolicy(2);
setBackground(UIManager.getLookAndFeel().getDefaults().getColor(LookAndFeel.DESKTOP));
mMDIContainer.setDefaultHorizontalToolBar(null);
mMDIContainer.setDefaultVerticalToolBar(null);
mMDIContainer.setDefaultStatusBar(null);
setupBackgroundImage(getDesktop());
why to decompile frmall.jar?
I'am interested to change some GUI and LAF..

Jars and .class files - security of the source code

Hi,
I have an app that is in a jar file with the .class files (so no source code).
I'm wondering how difficult it is to attain the source code from these .class files in my jar? Looking through the contents of the .class files it seems there is a large amount of readable text. For example I see method names, variables, etc.
This leads me to believe these jars are not secure. What is a better way?
Thanks!
Edit:
Looking around, I've noticed many java decompilers and Sun even supports a dissembler - javap. I think this is not cool, haha.
What way can I protect my code? To me, the value of java just went way down due to the ease at attaining source code (based on what I read in the past hour or so. I have yet to try it myself). I wonder if this impacts companies reasons not to use java?
Edit 2:
I heard that there may be a way to make the jar closed, so you can't say, use winrar, to extract the class files. Does anyone know anything about this?
Message was edited by:
dayrinni
Message was edited by:
dayrinni

Hi,
I have an app that is in a jar file with the .class
files (so no source code).
I'm wondering how difficult it is to attain the
source code from these .class files in my jar?
Looking through the contents of the .class files it
seems there is a large amount of readable text. For
example I see method names, variables, etc.
This leads me to believe these jars are not secure.
What is a better way?
Thanks!
Edit:
Looking around, I've noticed many java decompilers
and Sun even supports a dissembler - javap. I think
this is not cool, haha.
What way can I protect my code? To me, the value of
java just went way down due to the ease at attaining
source code (based on what I read in the past hour or
so. I have yet to try it myself). I wonder if this
impacts companies reasons not to use java?All intellectual property stored in electronic form is vulnerable. Not just Java bytecode. You can use tools called obfuscators to make decompiling more difficult, which is usually good enough. The truth is, no matter how great you think your code is, it's of a lot less interest to others than you actually think. Unless you've got a particularly sexy argorithm or something, it's not really worth worrying too much about
All you can do is make it more difficult for people to crack things, never prevent it. True of all languages, all electronic media

Finding the source code from Jar file

Hi,
I am a beginner java programmer but have been entrusted with learning our company's Java application. The architect of the application is not forthcoming in sharing information and so I need help in tracing the source code for the application. I know where the .jar files are stored but I don't know where the actual .java or .class files are stored.
In the .profile file, I see the classpaths set to various jar files. eg.
CLASSPATH=$PATH:/eaid01_apps/merc01/libs/tools/java/drivers/bin/eaiRun.jar
When I view this jar file with command "jar tf eaiRun.jar", it displays all the files under it. Onc such listing is as following:
citi/eai/EAI.class
citi/eai/Interface.class
I want to go to that specific directory on our file system which is storing these .class or.java file. From what I have learned about packages, I should find some folder called 'citi' ,'eai'.
However I am not able to find these folders anywhere on file system. Is there a way I can find where the actual souce code is by looking at the jar files.
Please help. Let me know if you need more information.
thanks,
Anand.

Is there a way I can find where the actual souce code is by looking at the jar files.No, in general you can't, you should ask the architect that you mentioned earlier. The name of the source file is sometimes stored in the .class file for debugging purposes but that's unlikely going to help you find the files.
You should also ask if he/she has got any documentation of the system. It's often a lot easier to follow documentation written in human language than program code written in a programming language. There could be documentation in a format similar to this: http://java.sun.com/j2se/1.4.2/docs/api/

Where are draw app 4 source code?

how to get the draw app 4 source code in java web start

why loaded the same question in 3 different threads?
My experience is, if your question is valid, you will definitely get the answers, even though your question is upto any complexity. We have got Java jaints here in this forum.
My suggestion is Avoid unnessary repeated posting of messages and wisely use the Precious resource.
And regarding your query, I don't know the answer and I am also eagerly waiting for an answer
Thanks

Attaching source code of jar files in ecllipse edidor

Hi all,
i want to attach source code for jre system library 1.5 while i am using ecllipse 3.2. i also want to attach other source code for struts.jar .
but i am unable to do it.
my another problem is that i have struts.jar 1.2.9 and source code for that version is not available on the apache site.
so please help me to attaching source file with jar files.
thanks.

source code for jre system library 1.5 under eclipse: Window -> Preferences ->
Installed JREs -> here add JDK and not JRE
(that's all !!)
source code for struts.jardownload struts.xxx-src.zip from struts web site the
add it to your struts project repository. Write some
code that uses the struts API then select a struts
class (ActionForm for example) and hit F3 keyboard
key. Finally, click the button Attach
Source... and select struts.xxx-src.zip you've
just downloaded.
do the same thing for all other jar which have a
source code
hope that helpsRather than change JVMs to do this, you could just follow java_2006's instructions for the JRE, looking for the source inside the folder where your JDK is installed. It's in a file called src.zip

Very Easy Question: How to view source code of JAR file

Hi Experts,
1) Can we can see the content of JAR file?
2) How we can we see content of JAR file?
3) I have with me JAR file. It is sap.compcui_gpoadp~ObjectAndDataProvider.JAR. I have to make some changes in the JAR file source code. How I can find the source code?
I tried to see the source code using NWDS. However, I can not see the code.
Regards,
Gaurav

>
Gary wrote:
> Can I make changes in the source code of JAR file? Can I make changes in the code?
You cannot do this by simple repacking/rearchiving of JAR, because it contains special descriptor with fingerprint. In general, JAR is unmodifiable, however, you can create a new one with modified sources.
You can try to import the JAR in some Java project in Eclipse, for example. Then make your changes and use the Eclipse's Export JAR wizard in order to repack the modified source Java files in a new JAR.
>
Gary wrote:
> Can I rename the JAR file and still it will usable? Please confirm.
I general, yes, the operation is allowed. However, you cannot do this with JAR deployed on some J2EE server or Portal, for example. Because there are references to it.
>
Gary wrote:
> Please let me know if by any chance I can see the content of JAR file in NWDS.
Yes, sure. Use Import from Archive wizard in Eclipse. Or add the JAR in the class path of some Java project and Eclipse will show you the content of it.
BR, Sergei

How can I make my source code with jar file?

I use JDK1.6.0. I can open a class file from rt.jar and get its source code. Does this because open source JDK? I wander how I can make my jar file with source code.

CeciNEstPasUnProgrammeur wrote:
youhaodiyi wrote:
But why I can read source code from rt.jar? I found there are only class files in it.I say it's highly likely that you can't and your IDE's settings rather automatically refer to the src.zip file in the JDK's directory.I see. That's true. I use eclipse as the source code reader. It may refer to the source code zip file automatically.
Thanks all.

Jar file and source code? (new to java!)

Hi all!
Sorry if this is a dumb question but I'm really new to java (.net guy).
Someone sent me a jar file and now I need access to source code. I now that I can rename to .zip and view its contents (.class)...
But what about source code? Can I decompile? As i understand, .class files are compiled .java files...
Should I ask for the source code to the guys that sent me the .jar file?
thanks
jay

Humm... is java as fast as replies in this forum? Thank's for your replies warnerja and zadok
I need the source code so that I can understand how the original developer solved a problem. I can ask for the source code.
I posted this message because I was afraid that the question was stupid and source code was in front of me. I am really new to java!
So. No source code in .jar or .class files. Right?
Thanks
Jay

Sample PL/SQL Portlet Source Code for Oracle Portal 9ias

Hi, I'm a newbie of Oracle Portal technology, and I have a problem:
I would create a PL/SQL portlet that realizes the following functions:
1) Retrieve the username of the portal user logged from WWCTX_API.GET_USER function.
2) Insert into an oracle db table two values about two hidden fields in the HTML FORM of the portlet.
3) Realize the insert commit through the click on the submit button on the Html form of the portlet. I would redirect by the same button to an other page url also.
I've never developed in Portal, and may be useful if someone could post me the source code of the SHOW MODE SECTION in the PROCEDURE SHOW of a SAMPLE PL/SQL PORTLET that realizes the upper functions.
Thanks a lot....

Hi
Here's the code from Helloworld_Portlet example:
procedure show
p_portlet_record wwpro_api_provider.portlet_runtime_record
is
l_portlet wwpro_api_provider.portlet_record;
begin
if (not is_runnable(
p_provider_id => p_portlet_record.provider_id
,p_reference_path => p_portlet_record.reference_path)
) then
raise wwpro_api_provider.PORTLET_SECURITY_EXCEPTION;
end if;
Retrieve the portlet information.
l_portlet := get_portlet_info(
p_provider_id => p_portlet_record.provider_id
,p_language => p_portlet_record.language
if (p_portlet_record.exec_mode = wwpro_api_provider.MODE_SHOW) then
if (p_portlet_record.has_title_region) then
Draw the portlet header and specify what links are available
from that header (i.e. details, customize, help, and about).
The has_title property is set at the page region level.
wwui_api_portlet.draw_portlet_header
p_provider_id => p_portlet_record.provider_id
,p_portlet_id => p_portlet_record.portlet_id
,p_title => l_portlet.title
,p_has_details => true
,p_has_edit => true
,p_has_help => true
,p_has_about => true
,p_referencepath => p_portlet_record.reference_path
,p_back_url => p_portlet_record.page_url
end if;
Draw the portlet borders.
The has_border property is set at the page region level.
wwui_api_portlet.open_portlet(p_portlet_record.has_border);
Display the content of the portlet in the show mode.
Use the wwui_api_portlet.portlet_text() API when
generating the content of the portlet so that the
output uses the portlet CSS.
htp.p(wwui_api_portlet.portlet_text(
p_string => 'Hello World - Mode Show'
,p_level => 1
if (p_portlet_record.has_border) then
wwui_api_portlet.close_portlet;
end if;
elsif (p_portlet_record.exec_mode = wwpro_api_provider.MODE_SHOW_ABOUT) then
Display the about page for the portlet.
htp.p('Hello World - Mode Show About');
elsif (p_portlet_record.exec_mode = wwpro_api_provider.MODE_SHOW_EDIT) then
Display the edit page for the portlet.
htp.p('Hello World - Mode Show Edit');
elsif (p_portlet_record.exec_mode = wwpro_api_provider.MODE_SHOW_HELP) then
Display the help page for the portlet.
htp.p('Hello World - Mode Show Help');
elsif (p_portlet_record.exec_mode = wwpro_api_provider.MODE_SHOW_EDIT_DEFAULTS) then
Display the edit defaults page for the portlet.
htp.p('Hello World - Mode Edit Defaults');
elsif (p_portlet_record.exec_mode = wwpro_api_provider.MODE_SHOW_DETAILS) then
Display the details page for the portlet.
htp.p('Hello World - Mode Show Details');
elsif (p_portlet_record.exec_mode = wwpro_api_provider.MODE_PREVIEW) then
Display the preview page for the portlet.
htp.p('Hello World - Mode Show Preview');
end if;
end show;
I think you need to add this:
You can get the values of your html-form with this command:
v_hidden_1 varchar2(256);
v_hidden_2 varchar2(256);
v_hidden_1 := wwpro_api_parameters.get_value('name_of_hidden_1_in_html_form','p');
v_hidden_2 := wwpro_api_parameters.get_value('name_of_hidden_2_in_html_form','p');
You can get the actual URL with this command:
v_url := p_portlet_record.page_url;
Hope that helps.
Regards,
Mark

LLVM Version / Alchemy Source Code

Hi,
I wanted to get a better understanding of flash and decided to learn how the avm2 and alchemy works. I would like to do some fun stuff with LLVM, including generating .swfs from other languages than c/c++. By trying so I noticed that Alchemy is based on LLVM 2.1 which is kinda old (released Sep 2007). Is there a way to use or port it to a newer LLVM version? It would make my experiment a lot easier and taking advantage of over three years development on LLVM would be great .
As far as I understand alchemy adds a new backend to LLVM arch=avm2 to generate avm actionscript code from LLVM IL code. Am I correct that this addition is not open source? Would be too bad, as I hoped to get an better understanding of the avm2 by looking into it. Also that would make it possible for us users of alchemy to port it ourself.
Thank you for any hints,
Florian

I think it's possible and I've been trying to do that for the last couple of days. I believe I've found out how the process works for compiling to iphone, using something similar to the alchemy toolchain. What I'd like to do is create an actioncript compiler with alchemy, so it basically is flash - flash, but taking advantage of all the optimizations that LLVM makes on bytecode, once you can understand it. I believe that adobe uses the following process:
compile .as to ABC.
Pass ABC into the GlobalOptimizer that exists inside the actionscript compiler (ASC.jar).
It appears that GlobalOptimizer produces SSA IR code. I believe adobe slightly modifies this to be LLVM IR, and then they can just run llvm-as on the generated LLVM IR code.
I'm working on getting this functioning right now, because if I can get these stages done, then the existing alchemy toolchain should do the rest of the job (that is, taking that llvm bytecode and outputting actionscript bytecode using the existing back end). This would also explain why Adobe hasn't updated alchemy to work with a new version of LLVM, because the LLVM IR spec changes from release to release, so they'd have to keep changing the process of formatting their GlobalOptimizer output to be LLVM IR, which is probably more work than they want to invest right now.
In this list of processes, I'm on the last one. I'm currently figuring out how to convert the output from GlobalOptimizer to be valid LLVM IR but honestly, this is ALL new territory for me I need to find the specs on these things and do some reading. I had to customize the source code of the actionscript compiler to get this to work at all this far. The very fact that I had to do this also points to the fact that I'm on the right track, since posts I've seen from Adobe employees + documentation state that the actionscript compiler included in the alchemy toolkit is custom. Plus, this paper confirms many of these conclusions:
http://llvm.org/devmtg/2009-10/Petersen_OptimizingActionScriptBytecode.pdf
I think you might be the only person interested in this stuff so for the sake of not clogging up the forums with our discussions feel free to contact me directly if you'd like more info.

How to convert class file to Java source code ?

Hi All ,
Currently am working in Peoplesoft Demo project using java as Plug in.We have only the class files and jar files and we have planned to modify the code for future enhancements.We dont have any legal issues here as we are already working with our client for the original source code.
Kindly help me out in doing this reverse engineering process.We have come to know the below steps would help us out.Can someone guide us in acheiving this process step by step.Please add your experience here and let us know what are the other steps required ..
(1)Rename the file from .jar to .zip and extract the .zip file.
(2)Decompile the desired .class file using 3rd party tool and get .java file.
(3)Modify the .java file and compile it.
(4)Now zip the extracted files and rename the it from .zip to .jar.
We need to verify whether the modified .jar file will work
Thanks & Regards
Kar1983

Thanks for your reply ....We have asked them so many times ..but they say they dont have it .Since we have planned to do some enhancements from our end we have planned to do reverse engineering process.

How to display the source code for this friggin' file.

Below is a rather lengthy bit of code that provides the behavior and attributes of a web server for OpenCyc. I need to know if I can enter some java to have the HTML source code displayed in a separate text file whenever this class returns some resulting webpage. If you have any ideas it will be greatly appreciated.
-"Will code for foo."
package org.opencyc.webserver;
* Class WebServer is simple multithreaded HTTP server
* with CGI limited to a Cyc connection on default port 3600.
* <p>
import java.net.*;
import java.io.*;
import java.util.*;
import java.util.jar.*;
import java.text.*;
import org.opencyc.util.*;
public class WebServer extends Thread {
     * Singleton WebServer instance.
    public static WebServer current;
     * Default HTTP port.
    protected static int DEFAULT_PORT = 80;
     * Default Cyc base port.
    protected static int DEFAULT_CYC_PORT = 3600;
     * Default directory to serve files from on non-Windows OS.
    protected static String DEFAULT_DIR = "/";
     * Default directory to serve files from on Windows.
    //protected static String DEFAULT_WIN_DIR = "C:\\";
    protected static String DEFAULT_WIN_DIR = "k:\\opencyc\\run\\httpd\\htdocs";
     * File cache capacity.
    protected static final int CACHE_CAPACITY = 100;
     * File cache to improve file serving performance.
    protected static Hashtable fileCache = new Hashtable(CACHE_CAPACITY);
     * Number of files served from this web server.
    protected static long nbrFilesServed = 0;
     * Number of files served from this web server that were found in the cache.
    protected static long nbrCacheHits = 0;
     * Server socket for accepting connections.
    protected ServerSocket server;
     * Directories to serve files from.
    protected ArrayList dirs;
     * Map from String (jar root) to JarFile[] (jar class path).
    protected HashMap map;
     * Webserver HTTP port.
    protected int port;
     * Cyc HTML host.
    protected String cycHost = "localhost";
     * Cyc HTML port.
    protected int cycPort;
     * Expand jar tress.
    protected boolean trees;
     * Requests flag.
    protected boolean traceRequests;
     * Constructs a WebServer object.
     * @param port the port to use
     * @param directories the directory to serve files from
     * @param trees true if files within jar files should be served up
     * @param traceRequests true if client's request text should be logged.
     * @exception IOException if the listening socket cannot be opened, or problem opening jar files.
    public WebServer() throws IOException {
        getProperties();
        server = new ServerSocket(port);
        processDirectories();
     * Class Task processes a single HTTP request.
    protected class Task extends Thread {
         * Socket for the incoming request.
        protected Socket sock;
         * Client socket to the Cyc KB HTML server.
        protected Socket cycHtmlSocket;
         * Output tcp stream.
        protected DataOutputStream out;
         * Contains the file request path for a not-found error message.
        protected String notFoundPath;
         * Contains the first line of a request message.
        protected String methodLine;
         * Contains the body of a POST method.
        protected String bodyLine;
         * Constructs a Task object.
         * @param sock the socket assigned for this request.
        public Task(Socket sock) {
            this.sock = sock;
         * Processes the HTTP request.
        public void run() {
            if (traceRequests)
                Log.current.println("connection accepted from " + sock.getInetAddress());
            notFoundPath = "";
            try {
                out = new DataOutputStream(sock.getOutputStream());
                try {
                    getBytes();
                catch (Exception e) {
                    Log.current.println("file not found: " + notFoundPath);
                    try {
                        out.writeBytes("HTTP/1.1 404 Not Found\r\n");
                        out.writeBytes("Server: Cyc WebServer\r\n");
                        out.writeBytes("Connection: close\r\n");
                        out.writeBytes("Content-Type: text/html\r\n\r\n");
                        out.writeBytes("<HTML><HEAD>\n");
                        out.writeBytes("<TITLE>404 Not Found</TITLE>\n");
                        out.writeBytes("</HEAD><BODY>\n");
                        out.writeBytes("<H1>404 - Not Found</H1>\n");
                        out.writeBytes("</BODY></HTML>");
                        out.flush();
                    catch (SocketException se) {
            catch (Exception e) {
                Log.current.printStackTrace(e);
            finally {
                try {
                    sock.close();
                catch (IOException e) {
         * Reads the HTTP request and obtains the response.
         * @exception IOException when HTTP request has an invalid format.
        private void getBytes() throws IOException {
            // Below logic is complex because web browsers do not close the
            // socket after sending the request, so must parse message to find
            // the end.
            BufferedReader in = new BufferedReader(new InputStreamReader(sock.getInputStream()));
            ArrayList inBytes = new ArrayList(200);
            int ch = 0;
            boolean postMethod;
            methodLine = in.readLine();
            //if (traceRequests)
            //    Log.current.println("methodLine=" + methodLine);
            bodyLine = "";
            if (methodLine.startsWith("POST /"))
                postMethod = true;
            else
                postMethod = false;
            //if (traceRequests)
            //    Log.current.println("postMethod=" + postMethod);
            int ch1 = -1;
            int ch2 = -1;
            int ch3 = -1;
            int ch4 = -1;
            // Read the HTTP request headers.
            while (true) {
                ch = in.read();
                inBytes.add(new Integer(ch));
                ch1 = ch2;
                ch2 = ch3;
                ch3 = ch4;
                ch4 = ch;
                if (ch1 == '\r' && ch2 == '\n' && ch3 == '\r' && ch4 == '\n')
                    break;
                if ((! postMethod) &&
                    (! in.ready()) &&
                    ch1 == -1 &&
                    ch2 == -1 &&
                    ch3 == '\r' &&
                    ch4 == '\n') {
                    inBytes.add(new Integer('\r'));
                    inBytes.add(new Integer('\n'));
                    break;
            byte[] byteArray = new byte[inBytes.size()];
            for (int i = 0; i < inBytes.size(); i++) {
                Integer ich = (Integer) inBytes.get(i);
                byteArray[i] = ich.byteValue();
            String headers = new String(byteArray);
            if (postMethod) {
                String lcHeaders = headers.toLowerCase();
                int i = lcHeaders.indexOf("content-length: ");
                String contentLength = lcHeaders.substring(i + 16);
                int j = contentLength.indexOf("\r\n");
                contentLength = contentLength.substring(0, j);
                int bodyLen = (new Integer(contentLength)).intValue();
                for (int k = 0; k < bodyLen; k++) {
                    bodyLine = bodyLine + (new Character((char) in.read())).toString();
            String line = methodLine + "\r\n" + headers + bodyLine;
            if (traceRequests)
                Log.current.println(line);
            if (postMethod)
                processHttpPost();
            else
                if (line.startsWith("GET /"))
                    processHttpGet(line.substring(4));
                else {
                    Log.current.println("Invalid request = " + line);
                    throw new IOException();
         * Processes an HTTP GET method.
         * @param httpGetPath the path of the file to get.
         * @exception IOException if the file is not found.
        private void processHttpGet(String httpGetPath) throws IOException {
            int i = httpGetPath.indexOf(' ');
            if (i > 0)
                httpGetPath = httpGetPath.substring(0, i);
            Log.current.println(methodLine + " from " + sock.getInetAddress().getHostName());
            i = httpGetPath.indexOf("cg?");
            if (i > 0) {
                cycHtmlRequest(httpGetPath.substring(i + 3));
                return;
            notFoundPath = httpGetPath;
            i = httpGetPath.indexOf('/');
            if (i < 0 || map == null) {
                if (map == null || httpGetPath.endsWith(".jar")) {
                    for (int j = 0; j < dirs.size(); j++) {
                        String dir = (String) dirs.get(j);
                        String nativePath = dir + httpGetPath;
                        nativePath = nativePath.replace('/', File.separatorChar);
                        if (fileCache.containsKey(nativePath)) {
                            writeDataBytes((byte[]) fileCache.get(nativePath));
                            Log.current.println("...cached");
                            nbrCacheHits++;
                            nbrFilesServed++;
                            return;
                        try {
                            File f = new File(nativePath);
                            byte[] fileBytes = getBytes(new FileInputStream(f), f.length());
                            writeDataBytes(fileBytes);
                            if (fileCache.size() >= CACHE_CAPACITY)
                                fileCache.clear();
                            fileCache.put(nativePath, fileBytes);
                            Log.current.println("...from " + nativePath);
                            nbrFilesServed++;
                            return;
                        catch (IOException e) {
                throw new IOException();
            String jar = httpGetPath.substring(0, i);
            httpGetPath = httpGetPath.substring(i + 1);
            JarFile[] jfs = (JarFile[]) map.get(jar);
            if (jfs == null)
                throw new IOException();
            for (i = 0; i < jfs.length; i++) {
                JarEntry je = jfs.getJarEntry(httpGetPath);
if (je == null)
continue;
writeDataBytes(getBytes(jfs[i].getInputStream(je), je.getSize()));
nbrFilesServed++;
return;
throw new IOException();
* Processes an HTTP POST method.
* @exception IOException if the file is not found.
private void processHttpPost() throws IOException {
Log.current.println("POST " + bodyLine + " from " + sock.getInetAddress().getHostName());
cycHtmlRequest(bodyLine);
* Reads the specified number of bytes and always close the stream.
* @param in the file to be read for subsequent downloading.
* @param length the number of bytes to read from the file.
* @return An array of bytes from the file.
* @exception IOException if an error occurs when processing the file.
private byte[] getBytes(InputStream in, long length) throws IOException {
DataInputStream din = new DataInputStream(in);
byte[] bytes = new byte[ (int) length];
try {
din.readFully(bytes);
finally {
din.close();
return bytes;
* Sends the HTML request to Cyc.
* @param cycPath the portion of the URL which is given to the Cyc HTML server.
private void cycHtmlRequest(String cycPath) {
String request = sock.getInetAddress().getHostName() + "&" + cycPath + "#";
System.out.println("request=" + request);
ArrayList bytes = new ArrayList(10000);
try {
cycHtmlSocket = new Socket(cycHost, cycPort);
System.out.println("cycHost=" + cycHost + " cycPort=" + cycPort);
BufferedReader cycIn = new BufferedReader(new InputStreamReader(cycHtmlSocket.getInputStream()));
PrintWriter cycOut = new PrintWriter(cycHtmlSocket.getOutputStream(), true);
cycOut.println(request);
cycOut.flush();
int ch = 0;
while (ch >= 0) {
ch = cycIn.read();
bytes.add(new Integer(ch));
catch (Exception e) {
Log.current.printStackTrace(e);
byte[] byteArray = new byte[bytes.size()];
for (int i = 0; i < bytes.size() - 1; i++) {
Integer ich = (Integer) bytes.get(i);
byteArray[i] = ich.byteValue();
try {
writeTextBytes(byteArray);
catch (Exception e) {
Log.current.println(e.getMessage());
* Responds to the HTTP client with data content from the requested URL.
* @param bytes the array of bytes from the URL.
* @exception IOException if there is an error writing to the HTTP client.
public void writeDataBytes(byte[] bytes) throws IOException {
out.writeBytes("HTTP/1.1 200 OK\r\n");
out.writeBytes("Server: Cyc WebServer\r\n");
out.writeBytes("Connection: close\r\n");
out.writeBytes("Content-Length: " + bytes.length + "\r\n");
String prefix = (new String(bytes)).toLowerCase();
if (prefix.indexOf("<html>") > -1)
out.writeBytes("Content-Type: text/html\r\n\r\n");
else
out.writeBytes("Content-Type: application/java\r\n\r\n");
out.write(bytes);
out.flush();
* Respond to the HTTP client with text content from the requested URL.
* @param bytes the array of bytes from the URL.
* @exception IOException if there is an error writing to the HTTP client.
public void writeTextBytes(byte[] bytes) throws IOException {
out.writeBytes("HTTP/1.1 200 OK\r\n");
out.writeBytes("Server: Cyc WebServer\r\n");
out.writeBytes("Connection: close\r\n");
out.writeBytes("Content-Length: " + bytes.length + "\r\n");
out.writeBytes("Content-Type: text/html\r\n\r\n");
out.write(bytes);
out.flush();
* Gets properties governing the web server's behavior.
private void getProperties() {
port = DEFAULT_PORT;
String portProperty = System.getProperty("org.opencyc.webserver.port", "");
if (! portProperty.equalsIgnoreCase(""))
port = (new Integer(portProperty)).intValue();
Log.current.println("Listening on port " + port);
cycPort = DEFAULT_CYC_PORT;
String cycPortProperty = System.getProperty("org.opencyc.webserver.cycPort", "");
if (! cycPortProperty.equalsIgnoreCase(""))
cycPort = (new Integer(cycPortProperty)).intValue();
Log.current.println("Cyc connections directed to port " + cycPort);
String dirsProperty = System.getProperty("org.opencyc.webserver.dirs", "");
dirs = new ArrayList(3);
StringTokenizer st = new StringTokenizer(dirsProperty, ";", false);
while (st.hasMoreTokens()) {
String dir = st.nextToken();
dirs.add(dir);
trees = false;
String treesProperty = System.getProperty("org.opencyc.webserver.trees", "");
if (! treesProperty.equalsIgnoreCase(""))
trees = true;
traceRequests = false;
String traceRequestsProperty = System.getProperty("org.opencyc.webserver.traceRequests", "");
if (! traceRequestsProperty.equalsIgnoreCase("")) {
traceRequests = true;
Log.current.println("tracing requests");
* Adds transitive Class-Path jars to jfs.
* @param jar the jar file
* @param jfs the list of jar files to serve.
* @param dir the jar file directory.
* @exception IOException if an I/O error has occurred with the jar file.
private void addJar(String jar, ArrayList jfs, String dir) throws IOException {
Log.current.println("Serving jar files from: " + dir + jar);
JarFile jf = new JarFile(dir + jar);
jfs.add(jf);
Manifest man = jf.getManifest();
if (man == null)
return;
Attributes attrs = man.getMainAttributes();
if (attrs == null)
return;
String val = attrs.getValue(Attributes.Name.CLASS_PATH);
if (val == null)
return;
dir = dir + jar.substring(0, jar.lastIndexOf(File.separatorChar) + 1);
StringTokenizer st = new StringTokenizer(val);
while (st.hasMoreTokens()) {
addJar(st.nextToken().replace('/', File.separatorChar), jfs, dir);
* Administrative accessor method that obtains list of directories from which files are served.
public ArrayList getDirs() {
return dirs;
* Administrative method that updates the list of directories from which files are served.
public synchronized void setDirs(ArrayList dirs) throws IOException {
this.dirs = dirs;
fileCache.clear();
processDirectories();
* Administrative accessor method that obtains number of files served.
* @return The number of files served.
public long getNbrFilesServed() {
return nbrFilesServed;
* Administrative accessor method that obtains number of files served from cache.
* @return The number of files served from the cache.
public long getNbrCacheHits() {
return nbrCacheHits;
* Administrative method that clears the file cache.
public synchronized void clearFileCache() {
Log.current.println("Clearing file cache");
fileCache.clear();
nbrFilesServed = 0;
nbrCacheHits = 0;
* Processes the directories from which files are served, expanding jar trees if
* directed.
* @exception IOException if problem occurs while processing the jar files.
private void processDirectories() throws IOException {
if (dirs.size() == 0)
if (File.separatorChar == '\\')
dirs.add(DEFAULT_WIN_DIR);
else
dirs.add(DEFAULT_DIR);
Iterator directories = dirs.iterator();
while (directories.hasNext())
Log.current.println("Serving from " + directories.next());
if (trees) {
map = new HashMap();
for (int j = 0; j < dirs.size(); j++) {
String dir = (String) dirs.get(j);
String[] files = new File(dir).list();
for (int i = 0; i < files.length; i++) {
String jar = files[i];
if (!jar.endsWith(".jar"))
continue;
ArrayList jfs = new ArrayList(1);
addJar(jar, jfs, dir);
map.put(jar.substring(0, jar.length() - 4), jfs.toArray(new JarFile[jfs.size()]));
* Provides the command line interface for creating an HTTP server.
* The properties are:
* <pre>
* org.opencyc.webserver.port=<HTTP listening port>
* </pre>
* which defaults to 80.
* <pre>
* org.opencyc.webserver.cycPort=<Cyc connection port>
* </pre>
* which defaults to 3600.
* <pre>
* org.opencyc.webserver.dirs=<path>;<path> ... ;<path>
* </pre>
* with the argument enclosed in quotes if any path contains an
* embedded space.
* The default directory on Windows is C:
* and the default on other systems is / the default
* can be overridden with this property. By default, all files
* under this directory (including all subdirectories) are served
* up via HTTP. If the pathname of a file is <var>path</var> relative
* to the top-level directory, then the file can be downloaded using
* the URL
* <pre>
* http://<var>host</var>:<var>port</var>/<var>path</var>
* </pre>
* Caching of file contents is performed.
* <pre>
* org.opencyc.util.log=all
* </pre>
* If the all value is given, then all attempts to download files
* are output.
* <pre>
* org.opencyc.webserver.traceRequests
* </pre>
* If this property has any value, then the client HTTP requests are
* output.<p>
* <pre>
* org.opencyc.webserver.trees
* </pre>
* This property can be used to serve up individual files stored
* within jar files in addition to the files that are served up by
* default. If the property has any value, the server finds all jar files
* in the top-level directory (not in subdirectories). For each
* jar file, if the name of the jar file is <var>name</var>.jar, then any
* individual file named <var>file</var> within that jar file (or within
* the jar or zip files referenced transitively in the Class-Path manifest
* attribute, can be downloaded using a URL of the form:
* <pre>
* http://<var>host</var>:<var>port</var>/<var>name</var>/<var>file</var>
* </pre>
* When this property has any value, an open file descriptor and cached
* information are held for each jar file, for the life of the process.
* @param args an unused array of command line arguments.
public static void main(String[] args) {
Log.makeLog();
System.out.println("OpenCyc Web Server");
try {
// Launch thread to accept HTTP connections.
current = new WebServer();
current.start();
catch (IOException e) {
e.printStackTrace();
* Just keep looping, spawning a new thread for each incoming request.
public void run() {
try {
while (true) {
// Launch thread to process one HTTP request.
new Task(server.accept()).start();
catch (IOException e) {
e.printStackTrace();

JLundan,
I want to thank you for responding to the thread I started on the forum at java.sun.com. Your solution to my problem of needing to print the code of the html pages that the file I included generates was just what I was looking for. However, I have some further questions to ask, if you don't mind. To clarify my task I should say that your rephrasing of the problem is accurate: "You wan't to display the contents of the HTML file that the web server produces in response of client's request?"
Yes, this is what I need to do, but also it needs to display the source code of that html file that the server produces in response to the client's request. Also, in this case, I am the client requesting that the server return some html file, and I'm not sure where the server is. But the webserver.java file that I shared on the forum is on my local machine. I was wondering if I could modify this webserver.java file at my home so that any html file the server returns to me would automatically display the source code. This is a school project of mine and I am stuck on this one thing here.
Further, where would I put the "foo.html" file so it can be written to?
FileOuputStream fos = new FileOutputStream("foo.html");
fos.write(bytes);
fos.close();
Thanks so much for your help. I look forward to your response, at your convenience.
Regards

Draw.jar Source Code

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