Jpa vs Hibernate

http://java.dzone.com/articles/jpa-performance-optimization

Eclipse class decompiler javap

Run->External Tools->External Tools Configuration
Location:
${system_path:javap}
Working directory:
${project_loc}
Arguments:
-classpath ${project_loc}\target\classes -c ${java_type_name}

CODE COVERAGE AND CONFIGURATION

http://www.javacodegeeks.com/2011/10/code-coverage-with-unit-integration.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+JavaCodeGeeks+%28Java+Code+Geeks%29&utm_content=Google+Reader

PGP key Check

wget http://nginx.org/download/nginx-0.8.35.tar.gz
wget http://nginx.org/download/nginx-0.8.35.tar.gz.asc
gpg nginx-0.8.35.tar.gz.asc
gpg --keyserver pgpkeys.mit.edu --recv-key


Crossite Request

Sometimes it is nessesary to execute AJAX cross site request.
For Chrome

--disable-web-security --allow-file-access-from-files


WHO IS

To check who is connected to server:
qwinsta /server:SERVER_IP
To disconnect user
rwinsta /server:SERVER_IP SESSION_ID

Spring MVC

HiddenHttpMethodFilter - enable DELETE/PUT in the form

Java web services: performance comparison

http://www.ibm.com/developerworks/webservices/library/j-jws14/index.html?ca=drs-

Nexus configuration

Nexus remote repository indexes loading and publishing.

MVC REST

Since spring v.3 provide REST WEBSERVICE features.
git@github.com:sirtoxy/mvcrest.git
Test and try yourself.

WS-Security with SOAP UI

KEYTOOL CERTIFICATE GENERATION

keytool -genkey -alias bookstoreclient -keypass keypassword -keystore client-keystore.jks -storepass b00k5t0r3 -dname "cn=bookstore" -keyalg RSA
keytool -selfcert -alias bookstoreclient -keystore client-keystore.jks -storepass b00k5t0r3 -keypass keypassword
keytool -export -alias bookstoreclient -file key.rsa -keystore client-keystore.jks -storepass b00k5t0r3
keytool -import -noprompt -alias bookstoreclient -file key.rsa -keystore server-keystore.jks -storepass b00k5t0r3

SERVER_SIGN.PROPERTIES

org.apache.ws.security.crypto.provider=org.apache.ws.security.components.crypto.Merlin
org.apache.ws.security.crypto.merlin.keystore.type=jks
org.apache.ws.security.crypto.merlin.keystore.password=b00k5t0r3
org.apache.ws.security.crypto.merlin.file=C:\\certificates\\server-keystore.jks

CXF

<bean class="org.apache.cxf.ws.security.wss4j.WSS4JInInterceptor">
<constructor-arg>
<map>
<entry key="action" value="Timestamp Signature">
<entry key="signaturePropFile" value="server_sign.properties">
</entry>
</map>
</constructor-arg>
</bean>


RESOLVE MACHINE NAME TO HOST NAME

1. Find you ID

2. Apply patch as described here

cscript.exe //nologo %systemdrive%\inetpub\adminscripts\adsutil.vbs set W3SVC/your_website_identifier_here/SecureBindings “:443:my.publicserver.com”

3. Restart IIS

SOPA Styles

//DOCUMENT LITERAL WRAPPED
//DOCUMENT LITERAL BARE
//RPC ENCODED WRAPPED
//RPC LITERAL WRAPPED

Eclipse best plugins

http://download.eclipse.org/tools/ajdt/36/update
http://eclipse-cs.sourceforge.net/update
http://update.eclemma.org
http://m2eclipse.sonatype.org/sites/m2e
http://www.springsource.com/update/e3.5
http://findbugs.cs.umd.edu/eclipse

Timezone

aptitude update tzdata
zdump -v America/Chicago | grep 2011

#epoch time 1970-01-01 00:00:00 UTC
date +%s

#epoch time of 12 Jan 2010 16:44:12 UTC
date -d "12 Jan 2010 16:44:12 UTC" +%s

#convert epoch time to readable date
date -d @371407800

//Windows
java -jar tzupdater.jar -f -bc -u

Java Mocking Operations

It is became common to use Mocking in java projrcts. But there are not so much examples from Mockito project. So Here is the examples how to do some test with Mockito.
Add maven dependency:
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-all</artifactId>
<version>1.8.5</version>
<scope>test</scope>
</dependency>

First you have to specify the following:

@RunWith(MockitoJUnitRunner.class)
public class YourTest

To mock any object you can use 2 approaches:

@Mock
private YourObject yourObject;

or

YourObject yourObject = mock(YourObject.class);

Verify operations example:
when(classField.getSpecificMethod()).thenReturn(stub value);
verify(classField).getSpecificMethod();
verifyNoMoreInteractions(classField);

verify(classField, atLeast(1)).getSpecificMethod();
*atLeast(1) can be replaced with: atLeastOnce(), never()

Exception generation:
YourException yourException = mock(YourException.class);
doThrow(yourException).when(classField).getSpecificMethod();
when(classField.getSpecificMethod(any(Class.class),anyInt())).thenThrow(new YourException ());


SMB usage

smbclient '//computername/sharefolder' --workgroup=domainname --user=user
lcd /
put or get filename

Example: copy file to you windows machine

smbclient '//computername/sharefolder' --workgroup=domainname --user=user
lcd /path/to/file
put file.name


SSL keystore

By default keystore is users directory (example: C:\Users\myname\.keystore)

%JAVA_HOME%\bin>keytool.exe -importcert -file PATH_TO_CERT.cer –v
keytool.exe –list
%JAVA_HOME%\bin>keytool.exe -printcert - file PATH_TO_CERT.cer


Constructor chain execution with overriding methods inside

Note that when the Base constructor is called from within the Sub constructor, "this" clearly refers to an instance of Sub, not Base. Even though "this" has not been completely constructed yet, the JVM knows what class it will ultimately be. This is how it's able call overriding methods from the constructor.

Ruby Cucumber BDD for Java devs

Nice article how to integrate cucumber into java project.
http://www.goodercode.com/wp/using-cucumber-tests-with-maven-and-java
Change cuke4duke version to 0.4.3 and picocotainer to 2.10.2
Happy BDD!

Ruby 1.9 configuration

http://ascarter.net/2011/01/02/rails-development-on-ubuntu-10.10.html

SMTP (RFC822) testing

telnet mailhost port
EHLO
MAIL FROM: email
RCPT TO: email
DATA
Subject:
From:
To:
ENTER
message text
.

Regexp-Commander

From 20-04-2010
To 2010-04-20

([^0-9])([0-9][0-9])/([0-9][0-9])/([0-9][0-9][0-9][0-9])([^0-9])
\1\4-\3-\2\5