intarraymodelpersister.java

Novocode的 SWT 控件框架 丰富了MDI功能

/*******************************************************************************
 * Copyright (c) 2004 Stefan Zeiger and others.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.novocode.com/legal/epl-v10.html
 * 
 * Contributors:
 *     Stefan Zeiger ([e-mail]) - initial API and implementation
 *******************************************************************************/

package com.novocode.naf.persist;

import java.util.ArrayList;
import java.util.StringTokenizer;

import org.w3c.dom.Document;
import org.w3c.dom.Element;

import com.novocode.naf.app.NAFException;
import com.novocode.naf.model.IObjectModel;


/**
 * Persister for int[] models.
 *
 * @author Stefan Zeiger ([e-mail])
 * @since Oct 21, 2004
 * @version $Id: IntArrayModelPersister.java,v 1.3 2004/12/16 14:52:04 szeiger Exp $
 */

public class IntArrayModelPersister<T extends IObjectModel<int[]>> implements IPersister<T>
{
  public void toModel(Element e, T model) throws NAFException
  {
    if("null".equals(e.getLocalName())) model.setValue(null);
    else
    {
      ArrayList<String> l = new ArrayList<String>();
      StringTokenizer tok = new StringTokenizer(e.getTextContent(), ",");
      while(tok.hasMoreTokens()) l.add(tok.nextToken().trim());
      int[] a = new int[l.size()];
      for(int i=0; i<a.length; i++) a[i] = Integer.parseInt(l.get(i));
      model.setValue(a);
    }
  }


  public Element toDOM(Document doc, T model) throws NAFException
  {
    int[] val = model.getValue();
    if(val == null) return doc.createElement("null");
    Element e = doc.createElement("int-array");
    StringBuilder b = new StringBuilder();
    for(int v : val)
    {
      if(b.length() != 0) b.append(',');
      b.append(v);
    }
    e.setTextContent(b.toString());
    return e;
  }
}