/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
* Free SoftwareFoundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package javax.servlet.jsp.tagext;
import java.util.Enumeration;
import java.util.Hashtable;
/**
* Tag instance attributes and values. This information is used by
* TagExtraInfo to prepare VariableInfo.
*/
public class TagData implements Cloneable {
/**
* Constant object used as a key for request time attributes.
*/
public static final Object REQUEST_TIME_VALUE = new RequestTimeValue();
private Hashtable<String, Object> attributes;
/**
* Create a new TagData object based on an attribute key/value hash table.
*/
public TagData(Hashtable<String, Object> attrs)
{
if (attrs == null)
throw new NullPointerException();
this.attributes = attrs;
}
/**
* Create a new TagData object based on and array of attribute key/values.
*/
public TagData(Object [][]attrs)
{
attributes = new Hashtable<String, Object>();
for (int i = 0; attrs != null && i < attrs.length; i++) {
attributes.put((String)attrs[i][0], attrs[i][1]);
}
}
/**
* Returns the attribute with the given name.
*/
public Object getAttribute(String attribute)
{
return this.attributes.get(attribute);
}
/**
* Sets the attribute with the given name.
*/
public void setAttribute(String attribute, Object value)
{
this.attributes.put(attribute, value);
}
/**
* Enumerates the attribute names.
*/
public Enumeration<String> getAttributes()
{
return this.attributes.keys();
}
/**
* Return the attribute as a string.
*/
public String getAttributeString(String name)
{
Object value = this.attributes.get(name);
return (String) value;
}
/**
* Return the id of the attribute as a string.
*/
public String getId()
{
return getAttributeString(TagAttributeInfo.ID);
}
/**
* Clone the tag data.
*/
protected Object clone()
throws CloneNotSupportedException
{
return new TagData((Hashtable<String, Object>) attributes.clone());
}
static class RequestTimeValue {
public String toString()
{
return "RequestTimeValue[]";
}
}
}