GWT proyect in eclipse and maven

To create a GWT proyect in eclipse or another IDE use console the Archetype execute this command Use it as you would any other Maven archetype to create a template/stub project. launch this command y your console cmd> or terminal> mvn archetype:generate \ -DarchetypeGroupId=org.codehaus.mojo \ -DarchetypeArtifactId=gwt-maven-plugin \ -DarchetypeVersion=2.5.0 The generated project can then be imported as "existing project" into Eclipse, and run command-line maven to launch GWT 'mvn gwt:run' with plugin M2E. [1] But M2E has a problem: M2E problem : Plugin execution not covered by lifecycle configuration solver. Ref in [2] put this in your pom.

            
                
                    org.eclipse.m2e
                    lifecycle-mapping
                    1.0.0
                    
                        
                            
                                
                                    
                                        org.codehaus.mojo
                                        gwt-maven-plugin
                                        [2.4.0,)
                                        
                                            resources
                                            compile
                                            i18n
                                           generateAsync
                                        
                                    
                                    
                                        
                                    
                                
                                
                                    
                                        org.apache.maven.plugins
                                        maven-war-plugin
                                        [2.1.1,)
                                        
                                            exploded
                                        
                                    
                                    
                                        
                                    
                                

                            
                        
                    
                
            
        

[1]http://mojo.codehaus.org/gwt-maven-plugin/user-guide/archetype.html [2]http://stackoverflow.com/questions/8523737/getting-error-plugin-execution-not-covered-by-lifecycle-configuration-with-gwt

Cassandra keys in Unix/linux server and client in java windows

In this link talk about to count in rows in cassandra. But there a little problem when Unix database and client java Windows. The serialize UUID dont work.

byte[] start = null;
byte[] lastEnd = null;
int count = 0;
while (true) {
RangeSlicesQuery rsq = HFactory
 .createRangeSlicesQuery(keyspaceOperator,
       me.prettyprint.cassandra.serializers.BytesArraySerializer.get(), StringSerializer.get(),
 StringSerializer.get());
 rsq.setColumnFamily("columnFamily");
 rsq.setColumnNames("uuid","idUser","timestamp","urlPageVisited","processed");
 rsq.setKeys(start, null);
 rsq.setReturnKeysOnly(); // Return column names instead of values
 rsq.setRowCount(3); // Arbitrary default
 OrderedRows rows = rsq.execute().get();
 int rowCount = rows.getCount();

if (rowCount == 0) {
 break;
} else {
 start = rows.peekLast().getKey();

 if (lastEnd != null && Arrays.equals(start,lastEnd) ) { // modify this line
  break;
 }
 count += rowCount - 1;
 lastEnd = start;
}
  if (count > 0) {
   count += 1;
  }
  System.out.print("count de la tabla " + count);
  return count;
 }

change the UUID identify. Put byte[]

Kundera not implement getCriteriaBuilder

I have cassandra intalled a computer.... I try create a template to make dinamics query with JPA. This is implemente.

    public <E extends Object> List<E> getAll(E e){

    

          CriteriaBuilder cb = em.getCriteriaBuilder();

          

          CriteriaQuery<E> q = cb.createQuery((Class<E>) e);

          Root<E> c = q.from((Class<E>) e);

          return (List<E>) q.select(c);

    }

But when I executed this progran throw a exception

NotImplementedException: TODO
    at com.impetus.kundera.persistence.EntityManagerFactoryImpl.getCriteriaBuilder(EntityManagerFactoryImpl.java:199)
    at com.impetus.kundera.persistence.EntityManagerImpl.getCriteriaBuilder(EntityManagerImpl.java:682)

cant find parent project

I have a maven project with module and parent proyect. If you launch a test module with command mvn  test this work, but you add a variable inside module that reference to parent proyect. ${project.version} and now launch mvn test, this fail. You must install project parent in your local repository to launch module.

start reasoner in virtuoso

load Model from virtuoso

        VirtGraph set = new VirtGraph(GraphIri, "jdbc:virtuoso://" + uriServer + ":"
                + portJDBC + "", db_user, db_pass);
        System.out.println("Start inference!");
        Reasoner reasoner = PelletReasonerFactory.theInstance().create();
        reasoner = reasoner.bindSchema(set);
        InfModel infModel = ModelFactory.createInfModel(reasoner, modelVirtuoso);
        System.out.println("Stop inference!");

        Model m2 = vd.getNamedModel(GraphIri);


save inference in virtuoso

       
         System.out.print("instancias "+m2.size());
         if(m2.containsAll(infModel)){ System.out.print("no hay inferencia ");
         }else{ System.out.print("hay inferencia "); }
         if(m2.containsAny(infModel)){ System.out.print("es correcto ");
         }else{ System.out.print("es incorrecto "); }
        
        Model inferido = infModel.difference(m2);
        m2.add(inferido);

install virtuoso in windows

Download database virtuoso in http://sourceforge.net/projects/virtuoso/files/latest/download
unzip in virtuoso-opensource and add in variable path virtuoso-opensource\lib

copy  database/virtuoso.ini  as  demo.ini  in virtuoso-opensource
remove in file demo.ini  all character ../

open cmd admin mode
http://networkadminkb.com/KB/a47/how-to-allow-users-to-enumerate-service-remotely.aspx
unable to open sthe service control manager

execute in virtuoso-opensource   ./bin/virtuoso-t.exe -c demo -I Demo -S create
the service has been register

start service openlink virtuoso server [Demo]

open http://localhost:8890/

load OWL file model in virtuoso

If you try save a model from OWL file in Virtuoso with class

VirtuosoUpdateFactory  or VirtuosoQueryExecutionFactory this fail.

http://answers.semanticweb.com/questions/10520/virtrdfinsert-examples
http://answers.semanticweb.com/questions/12513/graph-in-virtuoso

To load in virtuoso used VirtDataSource

    VirtDataSource vd = new VirtDataSource("jdbc:virtuoso://localhost:1111", "dba", "dba");

        ModelMaker maker = ModelFactory.createMemModelMaker();   
        Model m = maker.createModel(BASE, false);
               
        //load owl file in model M
        FileInputStream  fis = new FileInputStream (getClass().getClassLoader().getResource("file.owl").getFile());
        m.read(fis ,null);
        fis.close();

       
        //TODO: if exist BASE in virtuoso FAIL
        //to erase datas conductor SQL> RDF_GLOBAL_RESET ();
        Model m2 =vd.getNamedModel(BASE);
        if(m2 == null)
            vd.addNamedModel(BASE, m);