<delete> <fileset dir="WEB-INF/lib" includes="**/some*.jar" excludes="**/some-other*.jar" /> </delete>
<copy todir="../new/dir">
<fileset dir="src_dir"/>
</copy>
<copy todir="../dest/dir">
<fileset dir="src_dir">
<exclude name="**/*.java"/>
</fileset>
</copy>
<copy todir="../dest/dir">
<fileset dir="src_dir" excludes="**/*.java"/>
</copy>
<!-- =========================================================== -->
<!-- Set handler Collection Structure -->
<!-- =========================================================== -->
<Set name="handler">
<New id="Handlers" class="org.eclipse.jetty.server.handler.HandlerCollection">
<Set name="handlers">
<Array type="org.eclipse.jetty.server.Handler">
<Item>
<New id="akuiContext" class="org.eclipse.jetty.webapp.WebAppContext">
<Set name="contextPath">/mywebapp</Set>
<Set name="resourceBase">/path/to/single/mywebapp</Set>
</New>
</Item>
</Array>
</Set>
</New>
</Set>
#format: -agentlib:jdwp=name1[=value1],name2[=value2]... java -agentlib:jdwp=transport=dt_socket,server=y,address=8000,suspend=n start.jar
help: prints a brief message on how to use it and exits the VM.
server: (”n” or “y”) If “y,” listen for a debugger application to attach; otherwise, attach to the debugger application at the specified address.
address: transport address for the connection. If server=n, attempt to attach to a debugger application at this address. If server=y, listen for a connection at this address.
timeout: If server=y, this specifies the timeout, in milliseconds, to wait for the debugger to attach. If server=n, this specifies the timeout, in milliseconds, to use when attaching to the debugger.
suspend: If “y,” JVM suspends the execution until a debugger connects to the debuggee JVM.
More info: Techrepublic and Source: StackOverflow
mvn -Dmaven.test.skip=true package
<repository> <id>jboss-repository-group</id> <name>jboss-repository-group</name> <url>https://repository.jboss.org/nexus/content/groups/public/</url> <layout>default</layout> </repository>
Note: the “http://repository.jboss.org/maven2/” is deprecated. Use the above one (Announcement, Getting Started Doc ).
mvn source:jar
mvn javadoc:jar
Publish Snapshots
mvn clean deploy
Or better with source
mvn clean source:jar javadoc:jar deploy
Stage the release
# prepare it (will create the new tag in sonatype SVN, automatically checking in on your behalf). mvn release:clean mvn release:prepare #stage the release mvn release:perform
Maven will checkout the tag you just prepared, then build and deploy it into Nexus staging repository.
Parsing CSV is not as simple at it seems. Not hard, but cumbersome.
Here is a simple Lib that does the job: Open CSV (download)
CSVReader reader = new CSVReader(new FileReader(ADDRESS_FILE));
String [] nextLine;
while ((nextLine = reader.readNext()) != null) {
System.out.println("Name: [" + nextLine[0] + "]\nAddress: [" + nextLine[1] + "]\nEmail: [" + nextLine[2] + "]");
}
Yes, File.renameTo is used to move file.
// File (or directory) to be moved
File file = new File("filename");
// Destination directory
File dir = new File("directoryname");
// Move file to new directory
boolean success = file.renameTo(new File(dir, file.getName()));
if (!success) {
// File was not successfully moved
}
BILINEAR or BICUBIC hint, the quality of the scaled instance may not be as smooth as you might like…. To combat this issue, you can use a multi-step approach when downscaling by more than two times; this helps prevent the information loss issue and produces a much higher quality result that is visually quite close to that produced by Image.SCALE_AREA_AVERAGING.”class EmpSortByName implements Comparator{
public int compare(Employee o1, Employee o2) {
return o1.getName().compareTo(o2.getName());
}
}
....
List employees = ...;
Collections.sort(employees , new EmpSortByName());
java.lang.Comparable: int compareTo(Object o1)
This method compares this object with o1 object. Returned int value has the following meanings.
java.lang.Comparator: int compare(Object o1, Objecto2)
This method compares o1 and o2 objects. Returned int value has the following meanings.
By default, apache commons BeanUtils does not support string value to their targeted Enum. You can write a converter for each enum, but this quickly become unmanageable.
Here is a quick fix to automatically convert the string value to the targeted enum.
BeanUtilsBean beanUtilsBean = new BeanUtilsBean(new ConvertUtilsBean(){
@Override
public Object convert(String value, Class clazz) {
if (clazz.isEnum()){
return Enum.valueOf(clazz, value);
}else{
return super.convert(value, clazz);
}
}
});
Now, you can call beanUtilsBean.populate(bean,map) even for enum values.
Here is the minimum code to support DataSourceTransactionManager thread bound session (similar to OpenSessionInViewInterceptor).
For each thread:
public void beginThreadSession(SessionFactory sessionFactory){
Session session = SessionFactoryUtils.getSession(sessionFactory, true);
TransactionSynchronizationManager.bindResource(sessionFactory,
new SessionHolder(session));
}
public void endThreadSession(SessionFactory sessionFactory){
SessionHolder sessionHolder =
(SessionHolder) TransactionSynchronizationManager.unbindResource(sessionFactory);
SessionFactoryUtils.closeSession(sessionHolder.getSession());
}
DataSourceTransactionManager will pickup the thread bound session with SessionFactoryUtils. The trick is calling the “un/bindResource” methods. This set one session for all your requests and transactions for a given thread (and use the @transactional if you have configured it as follow).
<aop:config proxy-target-class="true"/>
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="configurationClass" value="org.hibernate.cfg.AnnotationConfiguration"/>
<property name="configLocation" value="config/hibernate.cfg.xml"/>
<property name="dataSource" ref="dataSource"/>
</bean>
<tx:annotation-driven transaction-manager="txManager"/>
<bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>
Obviously, this is the strict minimum code (good of unit testing for example). For Web App, use the OpenSessionInViewInterceptor.
<bean id="openSessionInView"
class="org.springframework.orm.hibernate3.support.OpenSessionInViewInterceptor">
<property name="sessionFactory" ref="sessionFactory"/>
<!-- optional
<property name="flushModeName" value="FLUSH_NEVER" />
-->
</bean>