ejtools-cvs

[<let...@us...>]

Update of /cvsroot/ejtools/libraries/common/src/main/org/ejtools/util/state
In directory sc8-pr-cvs1:/tmp/cvs-serv20661/common/src/main/org/ejtools/util/state

Added Files:
	DefaultRule.java DefaultStoreVisitor.java LoadHandler.java 
	Rule.java Storable.java StoreVisitor.java 
Log Message:
Adjust Eclipse build files
Adjust some Javadoc
Integrate Persistence framework
Integrate Image export as PNG



--- NEW FILE: DefaultRule.java ---
/*
 * EJTools, the Enterprise Java Tools
 *
 * Distributable under LGPL license.
 * See terms of license at www.gnu.org.
 */
package org.ejtools.util.state;

import java.util.Map;

/**
 * @author    Laurent Etiemble
 * @version   $Revision: 1.1 $
 */
public class DefaultRule implements Rule
{
   /**
    * Description of the Method
    *
    * @param context  Description of the Parameter
    */
   public void loadBody(Map context)
   {
   }


   /**
    * Description of the Method
    *
    * @param context  Description of the Parameter
    */
   public void loadEnter(Map context)
   {
   }


   /**
    * Description of the Method
    *
    * @param context  Description of the Parameter
    */
   public void loadExit(Map context)
   {
   }
}

--- NEW FILE: DefaultStoreVisitor.java ---
/*
 * EJTools, the Enterprise Java Tools
 *
 * Distributable under LGPL license.
 * See terms of license at www.gnu.org.
 */
package org.ejtools.util.state;

import java.lang.reflect.Method;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Stack;
import org.w3c.dom.Node;

import org.apache.log4j.Logger;
import org.ejtools.beans.Sort;


/**
 * @author    Laurent Etiemble
 * @version   $Revision: 1.1 $
 */
public class DefaultStoreVisitor implements StoreVisitor
{
   /** Description of the Field */
   private Stack nodes = new Stack();
   /** Description of the Field */
   private Map persistMappings = new HashMap();
   /** Description of the Field */
   private static Logger logger = Logger.getLogger(DefaultStoreVisitor.class);



   /**Constructor for the ReflectivePersistenceStore object */
   public DefaultStoreVisitor() { }


   /**
    * Description of the Method
    *
    * @param iterator  Description of the Parameter
    */
   public void persist(Iterator iterator)
   {
      Iterator it = Sort.getChildrenByClass(iterator, Storable.class);
      for (; it.hasNext(); )
      {
         Storable p = (Storable) it.next();
         p.accept(this);
      }
   }


   /**
    * Description of the Method
    *
    * @param o  Description of the Parameter
    */
   public void persist(Object o)
   {
      Class clazz = o.getClass();
      Method m = (Method) this.persistMappings.get(clazz);
      try
      {
         m.invoke(this, new Object[]{o});
      }
      catch (Exception e)
      {
         logger.debug("Object of type " + o.getClass().getName() + " will not be persist");
      }
   }


   /**
    * Description of the Method
    *
    * @return   Description of the Return Value
    */
   protected Node peekCurrentNode()
   {
      return (Node) this.nodes.peek();
   }



   /**
    * Description of the Method
    *
    * @return   Description of the Return Value
    */
   protected Node popCurrentNode()
   {
      return (Node) this.nodes.pop();
   }



   /**
    * Description of the Method
    *
    * @param node  Description of the Parameter
    */
   protected void pushCurrentNode(Node node)
   {
      this.nodes.push(node);
   }


   /**
    * Description of the Method
    *
    * @param clazz  Description of the Parameter
    */
   public final void registerForPersistence(Class clazz)
   {
      try
      {
         Method m = this.getClass().getMethod("persist", new Class[]{clazz});
         this.persistMappings.put(clazz, m);
      }
      catch (NoSuchMethodException nsme)
      {
         logger.warn("Can't register for persistence class " + clazz.getName());
      }
   }
}

--- NEW FILE: LoadHandler.java ---
/*
 * EJTools, the Enterprise Java Tools
 *
 * Distributable under LGPL license.
 * See terms of license at www.gnu.org.
 */
package org.ejtools.util.state;

import java.util.HashMap;
import java.util.Hashtable;
import java.util.Map;

import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;


/**
 * @author    Laurent Etiemble
 * @version   $Revision: 1.1 $
 */
public class LoadHandler extends DefaultHandler
{
   /** Description of the Field */
   private Map context = new HashMap();
   /** Description of the Field */
   private String path = "";
   /** Description of the Field */
   private Map rules = new Hashtable();

   /** Description of the Field */
   public final static String ATTRIBUTES = "ATTRIBUTES";
   /** Description of the Field */
   public final static String ELEMENT = "ELEMENT";
   /** Description of the Field */
   public final static String TEXT = "TEXT";


   /**Constructor for the WorkbenchHandler object */
   public LoadHandler() { }


   /**
    * Adds a feature to the Rule attribute of the WorkbenchHandler object
    *
    * @param path  The feature to be added to the Rule attribute
    * @param rule  The feature to be added to the Rule attribute
    */
   public void addRule(String path, Rule rule)
   {
      this.rules.put(path, rule);
   }


   /**
    * Description of the Method
    *
    * @param ch                Description of the Parameter
    * @param start             Description of the Parameter
    * @param length            Description of the Parameter
    * @exception SAXException  Description of the Exception
    */
   public void characters(char[] ch, int start, int length)
      throws SAXException
   {
      String text = new String(ch, start, length);
      this.context.put("TEXT", text);
      Rule rule = (Rule) this.rules.get(this.path);
      if (rule != null)
      {
         rule.loadBody(this.context);
      }
   }


   /**
    * Description of the Method
    *
    * @param uri               Description of the Parameter
    * @param localName         Description of the Parameter
    * @param qName             Description of the Parameter
    * @exception SAXException  Description of the Exception
    */
   public void endElement(String uri, String localName, String qName)
      throws SAXException
   {
      this.context.put("ELEMENT", qName);
      Rule rule = (Rule) this.rules.get(this.path);
      if (rule != null)
      {
         rule.loadExit(this.context);
      }
      this.path = this.path.substring(0, this.path.length() - qName.length() - 1);
   }


   /**
    * Gets the context attribute of the LoadHandler object
    *
    * @return   The context value
    */
   public Map getContext()
   {
      return this.context;
   }


   /**
    * Description of the Method
    *
    * @param uri               Description of the Parameter
    * @param localName         Description of the Parameter
    * @param qName             Description of the Parameter
    * @param attributes        Description of the Parameter
    * @exception SAXException  Description of the Exception
    */
   public void startElement(String uri, String localName, String qName, Attributes attributes)
      throws SAXException
   {
      this.context.put("ELEMENT", qName);
      this.context.put("ATTRIBUTES", attributes);
      this.path = path + "/" + qName;
      Rule rule = (Rule) this.rules.get(this.path);
      if (rule != null)
      {
         rule.loadEnter(this.context);
      }
   }
}

--- NEW FILE: Rule.java ---
/*
 * EJTools, the Enterprise Java Tools
 *
 * Distributable under LGPL license.
 * See terms of license at www.gnu.org.
 */
package org.ejtools.util.state;

import java.util.Map;


/**
 * @author    Laurent Etiemble
 * @version   $Revision: 1.1 $
 */
public interface Rule
{
   /**
    * Description of the Method
    *
    * @param context  Description of the Parameter
    */
   public void loadEnter(Map context);


   /**
    * Description of the Method
    *
    * @param context  Description of the Parameter
    */
   public void loadBody(Map context);


   /**
    * Description of the Method
    *
    * @param context  Description of the Parameter
    */
   public void loadExit(Map context);
}

--- NEW FILE: Storable.java ---
/*
 * EJTools, the Enterprise Java Tools
 *
 * Distributable under LGPL license.
 * See terms of license at www.gnu.org.
 */
package org.ejtools.util.state;


/**
 * @author    Laurent Etiemble
 * @version   $Revision: 1.1 $
 */
public interface Storable
{
   /**
    * Description of the Method
    *
    * @param visitor  Description of the Parameter
    */
   void accept(StoreVisitor visitor);
}

--- NEW FILE: StoreVisitor.java ---
/*
 * EJTools, the Enterprise Java Tools
 *
 * Distributable under LGPL license.
 * See terms of license at www.gnu.org.
 */
package org.ejtools.util.state;

import java.util.Iterator;


/**
 * @author    Laurent Etiemble
 * @version   $Revision: 1.1 $
 */
public interface StoreVisitor
{
   /**
    * Description of the Method
    *
    * @param iterator  Description of the Parameter
    */
   void persist(Iterator iterator);


   /**
    * Description of the Method
    *
    * @param o  Description of the Parameter
    */
   void persist(Object o);


   /**
    * Description of the Method
    *
    * @param clazz  Description of the Parameter
    */
   void registerForPersistence(Class clazz);
}