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Oreilly Second Edition of Regular Expressions Cookbook

I was reading the free sampler of this new edition and paid my attention the reference to Recipe 6.7:

So I tested it, but it doesn't work as expected:

String regexp = "(?:429496729[0-5]|42949672[0-8][0-9]|4294967[01][0-9]{2}|429496[0-6]?[0-9]{3}|42949[0-5][0-9]{4}|4294[0-8][0-9]{5}|429[0-3][0-9]{6}|42[0-8]?[0-9]{7}|4[01][0-9]{8}|3[0-9]{9}|2[2-9][0-9]{8}|21[5-9][0-9]{7}|214[89]?[0-9]{6}|2147[5-9][0-9]{5}|214749[0-9]{4}|214748[4-9][0-9]{3}|2147483?[7-9][0-9]{2}|21474836[5-9][0-9]|214748364[89])"; 

String text = "214748364 8 2147483648 2147483650 4294967295";

I get the following results:

214748364
214748364
214748365
4294967295

is this a typo in the book or maybe RegexMagic is wrong.

http://www.regexguru.com/

Regards,

German

How to retrieve XML sent into SOAP Payload

Using WebLogic Server 10.3.5 , we need a way to retrieve XML payload that is not sent between CDATA:

<foo>
<bar>
foobar
</bar>
</foo>

To implement the solution, please use the following snippet code to achieve the requirement:

To achieve this, we use JAX-RPC and following webservice endpoint:
in the method nodeToString() we are getting the XML as String:

@WebMethod()

public String sayHello(javax.xml.soap.SOAPElement message) {

System.out.println("**************************ENDPOINT**************************************************");

System.out.println("sayHello:" + message.toString());

System.out.println("sayHello:" + message.getClass());



printNodeToConsole(message);

String xml_str = nodeToString(message);



System.out.println("****************************XML**********************");

System.out.println(xml_str);

System.out.println("****************************XML**********************");



return "Here is the message: '" + message + "'";

}





private String nodeToString(Node node) {

StringWriter sw = new StringWriter();

try {

System.out.println("Start string conversion...");

Transformer t = TransformerFactory.newInstance().newTransformer();

t.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");

t.transform(new DOMSource(node), new StreamResult(sw));

} catch (TransformerException te) {

System.out.println("nodeToString Transformer Exception");

}

System.out.println("end string conversion...");

return sw.toString();

}

There is a workaround escaping the XML with CDATA or XML entities < >
but the solution would be to use javax.xml.soap.SOAPElement as parameter of the webservice endpoint

Numbers with Thousand Separators

My solution for Numbers with Thousand Separators regexp:

^\-?[0-9]{1,3}(\,[0-9]{3})*(\.[0-9]+)?$|^[0-9]+(\.[0-9]+)?$

Vintage Chess

Estos son post antiguos que tengo en otro blog, creo que son interesantes de tenerlos aca ta,bien:

Colossus Chess 4.0 (a8) v/s GNU Chess

Por fin pude lograr hacer jugar (a través del protocolo UCI) a Colossus Chess 4.0 y GNU Chess para poder generar un nivel al muy buen producto de 8 bits Colossus Chess que era el mejor de la época.

Colossus hizo una buena presentación considerando los 8 bits y 1.67mhz del atari contra:

Hardware: Mobile AMD Sempron™ Processor 3000+ 1794 MHz with 1.152 MB Memory

Bueno el juego lo pueden ver a continuación (para algún tipo de análisis para jugadores) y el archivo PGN.

GNU Chess (white) / Atari Colossus Chess 4. 0 (Black)

1. e2e4 / e7e5
2. g1f3 / g8f6
3. b1c3 / f8b4
4. a2a3 / b4c3
5. d2c3 / d7d6
6. c1g5 / e8g8
7. f1e2 / b8c6
8. d1d3 / c8g4
9. e1c1 / a8c8
10. h2h3 / g4h5
11. d3e3 / h5f3
12. e3f3 / a7a5
13. h3h4 / d8e7
14. h1h3 / f8d8
15. h4h5 / h7h6
16. g5f6 / e7f6
17. f3f6 / g7f6
18. h3f3 / g8g7
19. d1d3 / d8e8
20. f3f5 / e8e7
21. d3g3 / g7h7
22. f5f6 / c8d8
23. e2c4 / d8f8
24. f6f5 / h7h8
25. g3g6 / f7g6
26. f5f8 / h8h7
27. h5g6 / h7g6
28. c1d2 / g6g7
29. f8g8 / g7f6
30. g8h8 / f6g7
31. h8a8 / g7f6
32. c4d5 / e7g7
33. g2g3 / a5a4
34. d2e3 / h6h5
35. a8a4 / b7b5
36. a4a8 / c6e7
37. a8f8 / f6g5
38. d5f7 / h5h4
39. g3h4 / g5h4
40. f7e8 / c7c6
41. f8h8 / h4g5
42. h8h5 / g5g4
43. h5h6 / g7g8
44. e8d7 / g4g5
45. h6e6 / g8g7
46. e6d6 / g7g6
47. d6g6 / g5g6
48. f2f4 / e5f4
49. e3f4 / g6f6
50. e4e5 / f6f7
51. f4e3 / f7g6
52. e3d4 / g6g5
53. d4c5 / g5f4
54. c5d6 / e7f5
55. d7f5 / f4f5
56. e5e6 / f5f6
57. e6e7 / c6c5
58. e7e8q / b5b4
59. e8e6 / f6g5
60. d6e5 / b4a3
61. e6f5 / g5h4
62. e5f4 / a3b2
63. f5-g4+

Colossus Tournament

Finally I made to play both Colossus Chess (3 & 4) against each other, where the last one won without any doubt 9.5 - 0.5

CC3 hardly got a the 4th game ending in a draw. Here it's the tournament in PGN to watch it in some chess software such as Arena.

---

Finalmente hice jugar a los Colossus Chess 3 y 4, donde el último ganó sin apelación 9,5 - 0,5

CC3 Apenas logró una tabla en el cuarto juego. Aquí les dejo el archivo del torneo en PGN para poder visualizarlo en algún software como Arena.

Aocho_cc4 = Colossus Chess 4.0
Aocho_cc3 = Colossus Chess 3.0

Rank	Engine	Score	Ao	Ao	S-B
1	Aocho_cc4	9,5/10	· ·· ·· ·· ··	111=111111	4,75
2	Aocho_cc3	0,5/10	000=000000	· ·· ·· ·· ··	4,75

Sieve of Eratosthenes

TODO: hay un bug en el codigo, probar lo nuevo en cc65.. la version de action ta mala :(

Sieve of Eratosthenes o la Criba de Eratóstenes

Byte: http://www.xgc.com/benchmarks/sieve_c.htm

TODO: revisar: probar: http://www.atarimagazines.com/v7n7/SuperSieve.html

FIRST ST PERFORMANCE TEST
http://www.atarimagazines.com/v4n6/STperformancetest.html

Computer	Operating System	Language	Run Time (Sec.)
68000 Atari 520ST	TOS	C Digital CP/M 68K	3.8
68000 Apple Macintosh	-	C Manx	7
68000 Apple Macintosh	-	C Hippo L2	13
Z8001 5.5 MHZ	Unix	C	1.97
Z8000 Z-Lab	Zeus Unix	C	4.8
Z80	CP/M	Digital Basic	15.7
Z80	CP/M	MicroSoft COBOL	5115
6502 Atari 800	OS Rev.B	ACTION! display off: display on:	12.2 17.9
6502 Atari 800	OS Rev.B	BASIC	389
6502 Atari 800	OS Rev.B	BASIC XL	214

ADVAN COMPILER BASIC
http://www.atarimagazines.com/v4n12/Compiler.html
Advan BASIC is filled with shortcuts like this. By the way, it ran my version of the Sieve of Eratosthenes in 13.8 seconds. The MMG compiler took 9 seconds, BASIC XL took 67 seconds and Atari BASIC hasn't finished yet. If that isn't fast enough, you can rewrite key routines in assembly language from within BASIC. Advan BASIC recognizes assembler mnemonics almost as if they were BASIC keywords. Not only is this great for people who know assembly language, but it can be a teriffic learning environment too.

ADVAN OPTIMIZER
http://www.atarimagazines.com/v6n2/BASICBonanza.html
Advan BASIC was already pretty fast. Now it's the fastest BASIC in Atari history. In our Sieve Benchmark, the Advan Optimizing Compiler is about four times faster than the MMG Compiler, six times faster than regular Advan, 20 times faster than compiled Turbo-BASIC XL and 120 times faster than uncompiled Atari BASIC. In fact, it's more than half the speed of ACTION!- that's getting real close to pure assembly language.

Lights, Camera, ACTION!
http://www.atarimagazines.com/hi-res/v1n4/action.php

Language	Compile Time	Object Code	Run Time
BASIC FORTH Action! C (Z-80)	--- 3 sec < 1 sec 132 sec	443 114 423 290	3140 secs 168 secs 18 secs 14 secs

KYAN PASCAL
http://www.atarimagazines.com/v4n7/kyanpascal.html
The resulting object file has a very rapid run-time. Ten iterations of the Eratosthenes Prime Number Sieve (see "First ST Performance Test," Antic, October 1985) ran in about 120 seconds with the screen on. With the screen off, the same program ran in just 80 seconds.

http://devweb.cl/atari/cc65/sieve_gg.c
http://devweb.cl/atari/cc65/sieve_gg.xex



PD: post pendiente desde 2009 :S

Eclipse M2: requires 'bundle org.hamcrest 0.0.0' but it could not be found

When trying to install M2 plugin to Helios the following error was thrown:

Cannot complete the install because one or more required items could not be found.
  Software being installed: m2e - Maven Integration for Eclipse Update Site 1.0.100.20110804-1717 (org.eclipse.m2e.site.feature.group 1.0.100.20110804-1717)
  Missing requirement: Maven Integration Tests Plug-in 1.0.100.20110804-1717 (org.eclipse.m2e.integration.tests.common 1.0.100.20110804-1717) requires 'bundle org.hamcrest 0.0.0' but it could not be found
  Cannot satisfy dependency:
    From: m2e - Extensions Development Support (Optional) 1.0.100.20110804-1717 (org.eclipse.m2e.sdk.feature.feature.group 1.0.100.20110804-1717)
    To: org.eclipse.m2e.integration.tests.common [1.0.100.20110804-1717]
  Cannot satisfy dependency:
    From: m2e - Maven Integration for Eclipse Update Site 1.0.100.20110804-1717 (org.eclipse.m2e.site.feature.group 1.0.100.20110804-1717)
    To: org.eclipse.m2e.sdk.feature.feature.group [1.0.100.20110804-1717]

The quick solution is:

unselecting the M2Eclipse Extensions Development Support (Optional) and Maven Integration for Eclipse Update site items let me get through the install process..

from http://dev.eclipse.org/mhonarc/lists/m2e-dev/msg00189.html

Project Euler: Problem 54

After 798 lines of code, I was able to solve... I thin it took me too much effort and line of codes... there are a couple method I may factor, however it doesn't worth it; I got the correct answer and I move to the next problem.

It seems the problems that are based on real one, and kind of easy to do, but take more time than usual:

Problem 54: Poker
Problem 84: Monopoly
Problem 96: Sudoku
Problem 109: Darts
Problem 185: Mastermind

Even more, these can be calculated with pencil & paper.

Filtering Classloading Failing With "ServletException: Servlet class: does not implement javax.servlet.Servlet"

In Oracle Weblogic Server 12.1.1.0

Symptoms

When having a POJO with @WebService annotation and the following is been thrown by WLS:

javax.servlet.ServletException: Servlet class: 'TestWS' does not implement javax.servlet.Servlet
at weblogic.servlet.internal.StubSecurityHelper$ServletInitAction.run(StubSecurityHelper.java:292)
at weblogic.servlet.internal.StubSecurityHelper$ServletInitAction.run(StubSecurityHelper.java:250)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
at weblogic.servlet.provider.WlsSubjectHandle.run(WlsSubjectHandle.java:57)
at weblogic.servlet.internal.StubSecurityHelper.initServletInstance(StubSecurityHelper.java:94)
at weblogic.servlet.internal.StubSecurityHelper.createServlet(StubSecurityHelper.java:82)
at weblogic.servlet.internal.StubLifecycleHelper.createOneInstance(StubLifecycleHelper.java:74)
at weblogic.servlet.internal.StubLifecycleHelper.(StubLifecycleHelper.java:60)
at weblogic.servlet.internal.StubLifecycleHelper.(StubLifecycleHelper.java:34)
at weblogic.servlet.internal.ServletStubImpl.initStubLifecycleHelper(ServletStubImpl.java:638)
at weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.java:579)
at weblogic.servlet.internal.WebAppServletContext.preloadServlet(WebAppServletContext.java:1874)
at weblogic.servlet.internal.WebAppServletContext.loadServletsOnStartup(WebAppServletContext.java:1848)
at weblogic.servlet.internal.WebAppServletContext.preloadResources(WebAppServletContext.java:1738)
at weblogic.servlet.internal.WebAppServletContext.start(WebAppServletContext.java:2740)
at weblogic.servlet.internal.WebAppModule.startContexts(WebAppModule.java:1704)
at weblogic.servlet.internal.WebAppModule.start(WebAppModule.java:781)
...

Cause

This occurs when classloading filtering is being used for the packages java.* or javax.*

Although this was common in 10.3.x, this is no longer supported since 12.1.1

i.e.:

<prefer-application-packages>
<package-name>javax.jws.*</package-name>
<package-name>javax.xml.ws.*</package-name>
<package-name>javax.annotation.*</package-name>
</prefer-application-packages>

Solution

remove the following tags from weblogic-application.xml and redeploy the application again:

i.e.:

<package-name>javax.jws.*</package-name>
<package-name>javax.xml.ws.*</package-name>
<package-name>javax.annotation.*</package-name>

References

http://docs.oracle.com/cd/E24329_01/web.1211/e24368/classloading.htm#i1097253

WebLogic Startup Mode: DEV v/s PROD

It is known that several features changes between development or production startup mode on WebLogic Server.

There is an interesting post at Frank Munz blog about it.

Until now, I have suggested about resource-reload-check-secs, webservice test client & CAT.

Probably still there are some features missing, so everybody is invited to comment.