Quick Cacio-Web howto
December 12, 2012 14 Comments
Today we released Caciocavallo 1.3. The release announcement can be found here.
However, what is the more important news is that after the release, I fixed Cacio-Web to work with the latest Cacio build and enabled it in the default build so it doesn’t fall to the wayside again. On popular request I would like to summarize how to get Cacio-Web running. Note that this currently only works on Linux (patches to enable this on other platforms are welcome!)
First of all, check out the source code (the cacio-web changes are not yet released):
hg clone http://hg.openjdk.java.net/caciocavallo/ng/ caciocavallo
Then build it (you need Maven!):
cd caciocavallo mvn clean install
And finally you should be able to run with with something like this:
java -Dcacio.web.port=9091 -cp cacio-web/target/cacio-web-1.4-SNAPSHOT-jar-with-dependencies.jar:/home/rkennke/src/test/SwingSet2.jar net.java.openjdk.cacio.server.CacioServer
The -Dcacio.web.port parameter specifies on which port should Cacio-Web listen. Notice that the classpath needs to include your application (SwingSet2.jar in this case).
Then point your browser to a URL like this:
http://localhost:9091/SessionInitializer?cls=SwingSet2
Where the parameter cls specifies the (fully qualified) name of the main class of the application to start.
Please let me know if you run into any problems.
Latest fails to compile on Mac OS X 10.8.2:
gcc –version
i686-apple-darwin11-llvm-gcc-4.2 (GCC) 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2336.11.00)
gcc -c -Wall -fPIC -I target -I src/main/c -I /include/ -I /include/linux target/WebSurfaceData.c -o target/WebSurfaceData.o
target/WebSurfaceData.c:25:17: error: jni.h: No such file or directory
In file included from src/main/c/cacio-web.h:29,
from target/WebSurfaceData.c:27:
src/main/c/SurfaceData.h:48: error: expected specifier-qualifier-list before ‘jint’
src/main/c/SurfaceData.h:156: error: expected specifier-qualifier-list before ‘jint’
src/main/c/SurfaceData.h:251: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘LockFunc’
src/main/c/SurfaceData.h:294: error: expected ‘)’ before ‘*’ token
src/main/c/SurfaceData.h:334: error: expected ‘)’ before ‘*’ token
src/main/c/SurfaceData.h:366: error: expected ‘)’ before ‘*’ token
src/main/c/SurfaceData.h:390: error: expected ‘)’ before ‘*’ token
src/main/c/SurfaceData.h:398: error: expected ‘)’ before ‘*’ token
src/main/c/SurfaceData.h:437: error: expected specifier-qualifier-list before ‘LockFunc’
src/main/c/SurfaceData.h:548: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘SurfaceDataOps’
src/main/c/SurfaceData.h:555: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘SurfaceDataOps’
src/main/c/SurfaceData.h:571: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘void’
src/main/c/SurfaceData.h:594: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘void’
src/main/c/SurfaceData.h:603: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘void’
src/main/c/SurfaceData.h:612: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘void’
src/main/c/SurfaceData.h:622: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘void’
src/main/c/SurfaceData.h:635: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘void’
src/main/c/SurfaceData.h:651: error: expected ‘)’ before ‘*’ token
src/main/c/SurfaceData.h:659: error: expected ‘)’ before ‘*’ token
In file included from target/WebSurfaceData.c:27:
src/main/c/cacio-web.h:37: error: expected specifier-qualifier-list before ‘jintArray’
target/WebSurfaceData.c:29: error: expected ‘)’ before ‘*’ token
target/WebSurfaceData.c:31: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘sunToolkitCls’
target/WebSurfaceData.c:32: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘sunToolkitLockMID’
target/WebSurfaceData.c:33: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘sunToolkitUnlockMID’
target/WebSurfaceData.c:35: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘lockSurfaceMID’
target/WebSurfaceData.c:36: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘unlockSurfaceMID’
target/WebSurfaceData.c:38: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘webSurfaceCls’
target/WebSurfaceData.c:39: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘dirtyRectMID’
target/WebSurfaceData.c:41: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘WebLock’
target/WebSurfaceData.c:43: error: expected ‘)’ before ‘*’ token
target/WebSurfaceData.c:45: error: expected ‘)’ before ‘*’ token
target/WebSurfaceData.c:47: error: expected ‘)’ before ‘*’ token
target/WebSurfaceData.c:49: error: expected ‘)’ before ‘*’ token
target/WebSurfaceData.c:52: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘void’
target/WebSurfaceData.c:81: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘void’
target/WebSurfaceData.c:99: error: expected ‘)’ before ‘*’ token
target/WebSurfaceData.c:108: error: expected ‘)’ before ‘*’ token
target/WebSurfaceData.c:117: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘WebLock’
target/WebSurfaceData.c:156: error: expected ‘)’ before ‘*’ token
target/WebSurfaceData.c:181: error: expected ‘)’ before ‘*’ token
make: *** [target/WebSurfaceData.o] Error 1
[INFO] ————————————————————————
[INFO] Reactor Summary:
[INFO]
[INFO] Caciocavallo Main Module …………………….. SUCCESS [10.509s]
[INFO] Cacio Shared Module …………………………. SUCCESS [9.030s]
[INFO] CacioTAA Java Module ………………………… SUCCESS [1:30.468s]
[INFO] CacioWeb Module …………………………….. FAILURE [54.146s]
[INFO] ————————————————————————
[INFO] BUILD FAILURE
Ok yes, it wouldn’t compile on OS X. I can’t fix it myself, because I currently don’t have access to such a machine. From what I can tell, what needs to be done, is to fix the cacio-web/Makefile to use the correct include paths (i.e. not linux) and also it looks like $JAVA_HOME is not set correctly from Maven to Makefile.
I think I knew this already, but I just tried on my OSX machine and it failed with Java 6.
So perhaps your article should underline the system requirements for such a build.
It basically needs Linux, Java 7 as well as, probably, gcc for native stuff.
Hi Emilian,
Yes, for now the requirements are Java7 (can’t do anything for Java6, sorry), Linux and GCC. The latter 2 should be fairly easy to fix for other platforms, it’s just that I don’t have access to anything else, otherwise I’d do it. The native part of Cacio-Web is really small and portable, this shouldn’t be a problem to compile on OS X.
It work! I Successfully ran AlienSwarm http://www.checkmypages.com/swarm/ using Cacio-Web & OpenJDK 7 inside the Firefox html5 canvas. 50fps
photo/1
Nice, i managed to use this to run a AWT based AlienSwarm arcadegame across the network using cacio-web https://twitter.com/i/#!/xranby/media/slideshow?url=pic.twitter.com%2Fq19moPwH
Roman: Thanks for writing the tutorial. Sorry its become so quiet arround CacioWeb…
xranby: cool
It gives a test error in Cacio-TTA Java module.
Results :
Tests in error:
testDrag(net.java.openjdk.cacio.ctc.DragMouseTest): Index: 1, Size: 1
Tests run: 17, Failures: 0, Errors: 1, Skipped: 0
[INFO] ————————————————————————
[INFO] Reactor Summary:
[INFO]
[INFO] Caciocavallo Main Module …………………….. SUCCESS [1.301s]
[INFO] Cacio Shared Module …………………………. SUCCESS [14.101s]
[INFO] CacioTAA Java Module ………………………… FAILURE [1:29.895s]
[INFO] CacioWeb Module …………………………….. SKIPPED
[INFO] ————————————————————————
[INFO] BUILD FAILURE
[INFO] ————————————————————————
[INFO] Total time: 1:45.623s
[INFO] Finished at: Thu Dec 20 13:00:51 IST 2012
[INFO] Final Memory: 21M/97M
[INFO] ————————————————————————
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.12:test (default-test) on project cacio-tta: There are test failures.
[ERROR]
[ERROR] Please refer to /home/akash/cacioweb/caciocavallo/cacio-tta/target/surefire-reports for the individual test results.
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
[ERROR]
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR] mvn -rf :cacio-tta
I am running Ubuntu 12.04 with OpenJDK7. I want to play around with it. Thanks.
Akash: Thanks for the report. Please try it again, I am pretty sure it’s a spurious failure. I am looking into it.
Hey Roman, yes it worked!!! Wow. Thank you so much for the prompt reply.
Your project is exactly what we’ve been looking for!
What do you think, needs to be changed for a MS Windows port. I am currently stuck in the makefile: WebSurfaceData.o cannot be found :/ I think a straight way is not that easy, huh?
or more concrete: what exactly does the native code part?
I have already ported it to windows:
http://icedtea.classpath.org/bugzilla/show_bug.cgi?id=1265