Heritrix 1

About Heritrix binaries:
• To start the Heritrix server at 127.0.0.1:8080, just right click the project on Eclipse and run it.
  
• The ARC Writer crawl output goes to:
  C:\tools\Heritrix\archive-crawler\heritrix\jobs
  
• Unzip IAH-20090813141952-00000-stutzmann.arc.gz with 7zip
  
• run perl C:\tools\Heritrix\ArcExtractor\ArcExtractor.pl
  You get crawled files with names changed, but extensions preserved
  
• change in bin/heritrix: JAVA_OPTS=" -Xmx512M"
  
• You can shut down through the web interface: http://127.0.0.1:8080/
  

About the dev version on Vista:
• I build the heritrix-1.15.4.jar on Windows using "maven dist" (version 1.0.2). I get a build error that is actually related to the tests (C:\Users\toto\.maven\cache\maven-test-plugin-1.6.2\plugin.jelly), but if you comment out the tests in project.xml, the jar is fine (heritrix-1.15.4.jar in C:\tools\Heritrix\archive-crawler\heritrix\target). I had to use jdk 1.5 because jdk 1.6 would not work because of tools.jar
  
• I copy the jar to a Linux heritrix 1.14.3 binary install and rename the existing heritrix-1.14.3.jar to *.old
  
• I run it on Linux doing:
  "bin/heritrix --bind=/ --admin=LOGIN:PASSWORD"
  
• Note that if you add a writer in the jar file, you can choose it from the web interface from:
  "Profiles", edit your profile, "Modules", and writer
  

About Maven (need maven 1.0.2 for Heritrix):
• to display all the targets:
  maven -g > toto.txt
  
• List of targets are in project.xml, see "build" target
  
• "dist:" postgoals are described in maven.xml
  
• To add a jar like mysql, you need to add it to project.properties and project.xml
  

Java survival kit

- Java2 (1998)

• Collections
  
• JavaWorld article on Collections
  

- Java5 (2004): Generics and enum

• Generics
  
• Annotations

- Java6 (2006)

• Web Services
• All developers get first-class support for writing XML web service client applications. No messing with the plumbing: You can expose your APIs as .NET interoperable web services with a simple annotation. Not your style? Want to handle the XML directly? Knock yourself out: Java SE 6 adds new parsing and XML to Java object-mapping APIs, previously only available in Java EE platform implementations or the Java Web Services Pack.

- Java8 (LTS, 2014 )

• Java Stream API
  
• Lambda expressions
• java.util.function

- Java11 (LTS  2018)

- Java17 (LTS.  2021)

- annotations

• Java 8 annotations
• Java 15 annotations

- alternatives
  - alternatives (works with "java" and "javac")

/usr/bin/update-alternatives --config java
/usr/bin/update-alternatives --install

http://askubuntu.com/questions/56104/how-can-i-install-sun-oracles-proprietary-java-jdk-6-7-8-or-jre

- To switch from open-jdk to Sun Hotspot JDK on ubuntu:
  sudo update-alternatives --set    java    /usr/lib/jvm/jdk1.7.0_67/bin/java

- other notes

• keywords const and goto are reserved, even though they are not currently used
  
• // @formatter:off
• 
  
• JAVA_HOME when using Java11
• in .bash_profile:       export JAVA_HOME=$(/usr/libexec/java_home)

Apache HTTP server on vista

I installed apache_2.2.11-win32-x86-openssl-0.9.8i.msi on Vista on port 8080 for myself. Then, from the apache console, it tells me that there is no service, and the "start" button is disabled. The way I had to start it, is from the MS console: httpd.exe. When I start it, a Vista pop-up asks me if I want to open the firewall for this process. That's the way I start it.
It also starts from the menu /Control Apache Server/Start Apache in Console.
Could not start it from the "Apache Server Monitor"
Ah also, I had to go through the security vista nightmare to add files in htdocs in Program Files.

Google search functions

• Google cache for a URL:

• cache:france24.com     (not all link are cached)
• http://webcache.googleusercontent.com/search?q=cache:https://www.france24.com/en/tag/cnn/&hl=en&gl=fr&strip=1&vwsrc=0 

• related:www.disney.com    (related/similar  sites)
• site:www.cnn.com shannon  (search a specific  site)
• filetype:pdf horses
• http://www.googleguide.com/advanced_operators_reference.html#filetype
• exclude term: "laptop -hp"
• 
  

{-inurl:(htm|html|php) intitle:"index of" +"last modified" +"parent directory" +description +size +(wma|mp3) "DIGG"}

Use a SonyEricsson phone as a modem for your PC

Plug your USB telephone cable into your PC, the telephone not being plugged in.

Start SonyEricsson PC Suite 4.0.

Plug the USB cable into the K800 phone

Don't select neither "File transfer" nor "Phone mode" on the phonee

Click on "connect" on the PC Suite window in the internet tab, you are done.

Posix thread

#include 
#include 
#include 

void my_routine(void * arg)
{
printf("\n hello \n");
}

int main(int argc, char* argv[])
{
pthread_t th;
pthread_attr_t attr;

pthread_attr_init(&attr);

int rc = pthread_create(&th, (void *)&args, (void *)my_routine, NULL);

return 0;
}

C++ survival kit

If you don't want somebody to instanciate your class, set the constructor private

Operator precedence
http://en.wikipedia.org/wiki/Operators_in_C_and_C%2B%2B#Operator_precedence

Operator overloading:

Complex Complex::operator+( Complex &other ) {
return Complex( re + other.re, im + other.im );
}

Dummy template

// ---------------------------------------
class MyPairClass
{
int pair_1;
int pair_2;
};

// ---------------------------------------
template < class T, int i > class MyTemplate
{
public:
T* testFunc(T* pl);
};

template < class T, int i >
T* MyTemplate::testFunc(T* p1) 
{
return p1;
};

// ---------------------------------------
void myTemplateFunc()
{

MyPairClass * myPairClass = new MyPairClass();
MyTemplate < MyPairClass, 2 >  myList;
myList.testFunc(myPairClass);
}

Access to class members
The default access to class members (members of a class type declared using the class keyword) is private; the default access to global struct and union members is public. For either case, the current access level can be changed using the public, private, or protected keyword.

const array size

const int maxarray = 255;
char store_char[maxarray];  // allowed in C++; not allowed in C