Ajuda no Spring

Seguinte foi esse.

Tenho essa classe

public class ClienteController implements Controller {

private transient final Log log = LogFactory.getLog(ClienteController.class);

private ClienteManager mgr = null;

public void setClienteManager(ClienteManager clienteManager) {
    this.mgr = clienteManager;
}

public ModelAndView handleRequest(HttpServletRequest request,
                                  HttpServletResponse response)
throws Exception {
    
    if (log.isDebugEnabled()) {
        log.debug("entering 'handleRequest' method...");
    }
    
    return new ModelAndView("clienteList", Constants.CLIENTE_LIST, mgr.getGrupos(""));
    
}

public List ListaGrupos() {
	return mgr.getGrupos("");
}

}

Até esse momento beleza, pois os testes trazem os grupos que é um atributo da classe cliente lá do model.

Porém estou precisando montar um combo box no JSP com todos os grupos dos cllientes.

Ai vem essa ClasseTAG.

package br.com.modere.webapp.taglib;

import java.io.IOException;

import java.text.Collator;

import java.util.ArrayList;

import java.util.Collections;

import java.util.Comparator;

import java.util.Iterator;

import java.util.List;

import java.util.Locale;

import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.TagSupport;

import org.displaytag.tags.el.ExpressionEvaluator;

import br.com.modere.model.LabelValue;

/**

• Tag for creating multiple <select> options for displaying a list of

• Grupo names.

• NOTE - This tag requires a Java2 (JDK 1.2 or later) platform.

• @author Luciano Brunes

• @version 1.0 $ $Date: 11/10/2006 11:51:00 $

• @jsp.tag name=“grupo” bodycontent=“empty”
  
  <em>/
  
  public class GrupoTag extends TagSupport {
  
  private static final long serialVersionUID = 3905528206810167095L;
  
  private String name;
  
  private String prompt;
  
  private String scope;
  
  private String selected;
  
  /</em>*
  

  • @param name The name to set.
  • @jsp.attribute required=“false” rtexprvalue=“true”
    */
    public void setName(String name) {
    this.name = name;
    }

  /**

  • @param prompt The prompt to set.
  • @jsp.attribute required=“false” rtexprvalue=“true”
    */
    public void setPrompt(String prompt) {
    this.prompt = prompt;
    }

  /**

  • @param selected The selected option.
  • @jsp.attribute required=“false” rtexprvalue=“true”
    */
    public void setDefault(String selected) {
    this.selected = selected;
    }

  /**

  • Property used to simply stuff the list of ClasseSocials into a
  • specified scope.
  • @param scope
  • @jsp.attribute required=“false” rtexprvalue=“true”
    */
    public void setToScope(String scope) {
    this.scope = scope;
    }

  /**

  • Process the start of this tag.

  • @return int status

  • @exception JspException if a JSP exception has occurred

  • @see javax.servlet.jsp.tagext.Tag#doStartTag()
    
    */
    
    public int doStartTag() throws JspException {
    
    ExpressionEvaluator eval = new ExpressionEvaluator(this, pageContext);
    

    if (selected != null) {
    
    selected = eval.evalString(“default”, selected);
    
    }
    

    Locale userLocale = pageContext.getRequest().getLocale();
    List Grupos = this.buildGruposList(userLocale);

    if (scope != null) {
    
    if (scope.equals(“page”)) {
    
    pageContext.setAttribute(name, Grupos);
    
    } else if (scope.equals(“request”)) {
    
    pageContext.getRequest().setAttribute(name, Grupos);
    
    } else if (scope.equals(“session”)) {
    
    pageContext.getSession().setAttribute(name, Grupos);
    
    } else if (scope.equals(“application”)) {
    
    pageContext.getServletContext().setAttribute(name, Grupos);
    
    } else {
    
    throw new JspException(“Attribute ‘scope’ must be: page, request, session or application”);
    
    }
    
    } else {
    
    StringBuffer sb = new StringBuffer();
    
    sb.append("<select name="" + name + “” id="" + name + “” class=“select”>\n");
    

    if (prompt != null) {
         sb.append("    <option value=\"\" selected=\"selected\">");
         sb.append(eval.evalString("prompt", prompt) + "</option>\n");
     }
    
     for (Iterator i = Grupos.iterator(); i.hasNext();) {
         LabelValue ClasseSocial = (LabelValue) i.next();
         sb.append("    <option value=\"" + ClasseSocial.getValue() + "\"");
    
         if ((selected != null) && selected.equals(ClasseSocial.getValue())) {
             sb.append(" selected=\"selected\"");
         }
    
         sb.append(">" + ClasseSocial.getLabel() + "</option>\n");
     }
    
     sb.append("</select>");
    
     try {
         pageContext.getOut().write(sb.toString());
     } catch (IOException io) {
         throw new JspException(io);
     }
    

    }

    return super.doStartTag();
    }

  /**

  • Release aquired resources to enable tag reusage.
  • @see javax.servlet.jsp.tagext.Tag#release()
    */
    public void release() {
    super.release();
    }

  /**

  • Build a List of LabelValues for all the available countries. Uses

  • the two letter uppercase ISO name of the ClasseSocial as the value and the

  • localized ClasseSocial name as the label.

  • @param locale The Locale used to localize the ClasseSocial names.

  • @return List of LabelValues for all available countries.
    
    */
    
    protected List buildGruposList(Locale locale) {
    
    final String EMPTY = “”;
    
    List grupos = new ArrayList();
    
    grupos.add(“CLINICA”);
    

    List grupos2 = new ArrayList();

    for (Iterator it=grupos.iterator(); it.hasNext(); ) {
    
    final String iso = it.next().toString();
    
    final String name = iso;
    

    if (!EMPTY.equals(name)) {
     	LabelValue Grupo = new LabelValue(name, iso);
     	
         if (!grupos2.contains(Grupo)) {
             grupos2.add(new LabelValue(name, iso));
         }
     }
    

    }

    Collections.sort(grupos2, new LabelValueComparator(locale));

    System.out.println("GruposTag: " + grupos2);

    return grupos2;
    }

  /**

  • Class to compare LabelValues using their labels with

  • locale-sensitive behaviour.
    
    */
    
    public class LabelValueComparator implements Comparator {
    
    private Comparator c;
    

    /**

    • Creates a new LabelValueComparator object.
    • @param locale The Locale used for localized String comparison.
      */
      public LabelValueComparator(Locale locale) {
      c = Collator.getInstance(locale);
      }

    /**

    • Compares the localized labels of two LabelValues.

    • @param o1 The first LabelValue to compare.

    • @param o2 The second LabelValue to compare.

    • @return The value returned by comparing the localized labels.
      
      */
      
      public final int compare(Object o1, Object o2) {
      
      LabelValue lhs = (LabelValue) o1;
      
      LabelValue rhs = (LabelValue) o2;
      

      return c.compare(lhs.getLabel(), rhs.getLabel());
      
      }
      
      }
      
      }
      

No buildGruposList desta classe fiz um objeto direto receber o valor para testar o JSP. Funciona.

Mas como faço para buscar a minha lista de grupos lá da classe ClienteController ?

Até.