Migration from JSF to GWT 1.5

As far as I had to fix small project I had a task to fix JSF application. I need:
1.Add sorting
2.Fix flow
What I have is ant with many libs and JSF version 1.1.2
Problems:
1.JSF doesn't support table sorting.So do use this I need to use extensions such as Tomahawk or Trinidad as far as I worked with Tomahawk I used it.Last version in maven repositary is Tomahawk 1.1.5 so I used it. JSF 1.1.2 is not compatible with it so I replaced it with myfaces 1.1.5.After that many operations in applications didn't worked I had a lot of time to fix

In the same time I started to write the same application but on GWT. The 1 problem was that JSF Bean has UI, SQL, POJO in 1 Bean.

Time estimations will be discuss later

Hibernate Filters

Task:
Show feed executors with specified date

Libraries:


org.hibernate
hibernate-annotations
3.3.1.GA


org.hibernate
hibernate-commons-annotations
3.3.0.ga



So Feed Entity:

@Entity(name="FEED")
@FilterDef(name="status", parameters=@ParamDef( name="date", type="date" ) )
public class Feed {

@Id
@Column(name="FEED_ID")
private int id;

@Column(name="NAME")
private String name;

@OneToMany(fetch=FetchType.EAGER)
@JoinColumn(name = "FEED_ID")
@BatchSize(size=50)
@Fetch(FetchMode.SELECT)
@Filter(name="status", condition="BUSINESS_DATE=(select max(x.business_date) from FEED_RUN x where x.BUSINESS_DATE <= :date AND FEED_ID=x.FEED_ID)")
private List feedExecution;
}

Feed Runner Entity

@Entity(name = "FEED_RUN")
@Where(clause = "STATUS_ID <> 4")
public class FeedExecution {

@Id
@Column(name = "FEED_RUN_ID")
private int id;

@Column(name = "BUSINESS_DATE")
@Temporal(TemporalType.DATE)
private Date businessDate;

@ManyToOne(fetch = FetchType.EAGER)
@JoinColumn(name = "STATUS_ID")
private Status status;

@Formula("decode((SELECT COUNT(*) FROM file_load fl WHERE feed_run_id = fl.feed_run_id)+(SELECT COUNT(*) FROM event_log ev WHERE feed_run_id = ev.feed_run_id)+(SELECT COUNT(*) FROM error_log er WHERE feed_run_id = er.feed_run_id), 0, 0, 1)")
private boolean executed;

}


Migration from JBoss 4.0 to Tomcat 6.0(JNDI context)

JNDI resources types:
1.Global - myDS
2.Local java:/comp/env/myDS

By default JBOSS has global JNDI context
Tomcat has local JNDI context

To export property:

JAVA_OPTS="$JAVA_OPTS -DpropertyDS=java:/comp/env/myDS"

Where propertyDS - name of system property that will be used in your application

Creating your own maven plugin

Maven plugin:
Project->New->Maven Project->Next then select:


Your Mojo class will look like:

import org.apache.maven.plugin.AbstractMojo;
import org.apache.maven.plugin.MojoExecutionException;

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;

/**
* Goal which touches a timestamp file.
*
* @goal ddw
*
* @phase process-sources
*/
public class MyMojo extends AbstractMojo {
 /**
  * Location of the file.
  * expression says which parameter to use
  * @parameter expression="${outputDirectory}"

  * @required
  */
 private File outputDirectory;

 public void execute() throws MojoExecutionException {
     File f = outputDirectory;

     if (!f.exists()) {
         f.mkdirs();
     }

     File touch = new File(f, "touch.txt");

     FileWriter w = null;
     try {
         w = new FileWriter(touch);

         w.write("touch.txt");
     } catch (IOException e) {
         throw new MojoExecutionException("Error creating file " + touch, e);
     } finally {
         if (w != null) {
             try {
                 w.close();
             } catch (IOException e) {
                 // ignore
             }
         }
     }
 }
}

This plugin just creates file. Pay attention that comments are really a part of function.
Then you can run it via command line:
mvn groupId:artifactId:version:goal

In this case go to your project directory

mvn com.ddw.plugin:ddw-plugin:0.0.1-SNAPSHOT:ddw -DoutputDirectory="C:\tmp"