forked from Coded/SIPRP
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
169 lines
3.4 KiB
169 lines
3.4 KiB
/*
|
|
* NewsServlet.java
|
|
*
|
|
* Created on 20 de Maio de 2005, 17:48
|
|
*/
|
|
|
|
package siprp.pagina;
|
|
|
|
import java.io.*;
|
|
import java.util.*;
|
|
import javax.servlet.*;
|
|
import javax.servlet.http.*;
|
|
import java.sql.*;
|
|
import org.apache.velocity.*;
|
|
import org.apache.velocity.app.*;
|
|
|
|
import com.evolute.utils.*;
|
|
import com.evolute.utils.arrays.*;
|
|
import com.evolute.utils.db.*;
|
|
import com.evolute.utils.sql.*;
|
|
import com.evolute.utils.strings.*;
|
|
|
|
/**
|
|
*
|
|
* @author lflores
|
|
*/
|
|
public class NewsServlet extends HttpServlet
|
|
implements GlobalConstants
|
|
{
|
|
private static DBManager DBM = null;
|
|
|
|
private static final Select SELECT = new Select( new String[]{ "not_noticias" },
|
|
new String[]{"data", "noticia"}, new Field( "id" ).in(
|
|
new Field( "( SELECT MAX( id ) FROM not_noticias )" ) ) );
|
|
|
|
private SQLExecuter executer = null;
|
|
|
|
private static boolean velocityInit = false;
|
|
|
|
public void init()
|
|
{
|
|
if( !velocityInit )
|
|
{
|
|
try
|
|
{
|
|
String TEMPLATE_DIR = this.getServletContext().getRealPath( "/" ) + "html/";
|
|
|
|
Properties props = new Properties();
|
|
props.setProperty( "file.resource.loader.path", TEMPLATE_DIR );
|
|
Velocity.init( props );
|
|
}
|
|
catch( Exception ex )
|
|
{
|
|
ex.printStackTrace();
|
|
}
|
|
velocityInit = true;
|
|
}
|
|
|
|
if( DBM != null )
|
|
{
|
|
return;
|
|
}
|
|
|
|
try
|
|
{
|
|
DBM = new JDBCManager( bdUrl + "?prepareThreshold=1",
|
|
bdUsername, bdPassword , 8, 8, 0, new SQLQuery[] {} );
|
|
}
|
|
catch( Exception e )
|
|
{
|
|
e.printStackTrace();
|
|
}
|
|
}
|
|
|
|
private void close()
|
|
{
|
|
try
|
|
{
|
|
DBM.close();
|
|
DBM = null;
|
|
}
|
|
catch( Exception ex )
|
|
{
|
|
// we come here after an error
|
|
// so we discard this exception
|
|
}
|
|
}
|
|
|
|
private String getNews()
|
|
{
|
|
//System.err.println( "NEWS: BEGIN" );
|
|
try
|
|
{
|
|
if( executer == null )
|
|
{
|
|
executer = ( SQLExecuter )DBM.getSharedExecuter();
|
|
}
|
|
Virtual2DArray array = executer.executeQuery( SELECT );
|
|
Object o[][] = array.getObjects();
|
|
if( o != null && o.length > 0 )
|
|
{
|
|
//System.err.println( "NEWS: " + o[ 0 ][ 0 ].toString() );
|
|
return
|
|
//o[ 0 ][ 0 ].toString() +
|
|
StringConverter.unicodeToHTML( o[ 0 ][ 1 ].toString() );
|
|
}
|
|
}
|
|
catch( Exception ex )
|
|
{
|
|
//System.err.println( "NEWS: EX" );
|
|
ex.printStackTrace();
|
|
close();
|
|
}
|
|
//System.err.println( "NEWS: END" );
|
|
return null;
|
|
}
|
|
|
|
public void doGet( HttpServletRequest req, HttpServletResponse res )
|
|
throws IOException
|
|
{
|
|
//System.err.println( "NEWS: GET BEGIN" );
|
|
init();
|
|
//System.err.println( "NEWS: AF INIT" );
|
|
ServletOutputStream out = res.getOutputStream();
|
|
// String queryString = req.getQueryString();
|
|
res.setContentType( "text/html" );
|
|
String news = getNews();
|
|
Hashtable parameters = new Hashtable();
|
|
if( news == null )
|
|
{
|
|
parameters.put( "noticias", "" );
|
|
}
|
|
else
|
|
{
|
|
parameters.put( "noticias", news );
|
|
}
|
|
//System.err.println( "NEWS: BF SHOW" );
|
|
out.println( showPage( "noticias/mostrar_noticias.html", parameters ) );
|
|
}
|
|
|
|
private String showPage( String page, Hashtable parameters )
|
|
{
|
|
VelocityContext context = new VelocityContext();
|
|
StringWriter output = new StringWriter();
|
|
|
|
try
|
|
{
|
|
if( parameters != null )
|
|
{
|
|
String key;
|
|
for( Enumeration e = parameters.keys(); e.hasMoreElements(); )
|
|
{
|
|
key = ( String ) e.nextElement();
|
|
context.put( key, parameters.get( key ) );
|
|
}
|
|
}
|
|
|
|
Velocity.mergeTemplate( page, Velocity.ENCODING_DEFAULT, context, output );
|
|
|
|
return output.toString();
|
|
}
|
|
catch( Exception e )
|
|
{
|
|
e.printStackTrace();
|
|
}
|
|
return null;
|
|
}
|
|
}
|