/*
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This program 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.
* See the GNU Lesser General Public License for more details.
*
* Copyright (c) 2001 - 2009 Object Refinery Ltd, Pentaho Corporation and Contributors.. All rights reserved.
*/
package org.pentaho.reporting.engine.classic.core.modules.parser.ext.factory.stylekey;
import java.util.ArrayList;
import java.util.Iterator;
import org.pentaho.reporting.engine.classic.core.modules.parser.ext.factory.base.ClassFactory;
import org.pentaho.reporting.engine.classic.core.style.StyleKey;
/**
* A style key factory.
*
* @author Thomas Morgner
*/
public class StyleKeyFactoryCollector implements StyleKeyFactory
{
/**
* Storage for the factories.
*/
private final ArrayList factories;
/**
* Creates a new factory.
*/
public StyleKeyFactoryCollector()
{
factories = new ArrayList();
}
/**
* Adds a factory.
*
* @param factory the factory.
*/
public void addFactory(final StyleKeyFactory factory)
{
if (factory == null)
{
throw new NullPointerException();
}
factories.add(factory);
}
/**
* Returns an iterator that provides access to the factories.
*
* @return The iterator.
*/
public Iterator getFactories()
{
return factories.iterator();
}
/**
* Returns a style key.
*
* @param name the name.
* @return The style key.
*/
public StyleKey getStyleKey(final String name)
{
for (int i = 0; i < factories.size(); i++)
{
final StyleKeyFactory fact = (StyleKeyFactory) factories.get(i);
final StyleKey o = fact.getStyleKey(name);
if (o != null)
{
return o;
}
}
return null;
}
/**
* Creates an object.
*
* @param k the style key.
* @param value the value.
* @param c the class.
* @param cf the class factory used to create the basic object.
* @return The object.
*/
public Object createBasicObject(final StyleKey k, final String value,
final Class c, final ClassFactory cf)
{
for (int i = 0; i < factories.size(); i++)
{
final StyleKeyFactory fact = (StyleKeyFactory) factories.get(i);
final Object o = fact.createBasicObject(k, value, c, cf);
if (o != null)
{
return o;
}
}
return null;
}
/**
* Returns an iterator that provides access to the registered keys.
*
* @return The iterator.
*/
public Iterator getRegisteredKeys()
{
final ArrayList list = new ArrayList();
for (int i = 0; i < factories.size(); i++)
{
final StyleKeyFactory f = (StyleKeyFactory) factories.get(i);
final Iterator keys = f.getRegisteredKeys();
while (keys.hasNext())
{
list.add(keys.next());
}
}
return list.iterator();
}
/**
* Indicated whether an other object is equal to this one.
*
* @param o the other object.
* @return true, if the object is equal, false otherwise.
* @see java.lang.Object#equals(java.lang.Object)
*/
public boolean equals(final Object o)
{
if (this == o)
{
return true;
}
if (!(o instanceof StyleKeyFactoryCollector))
{
return false;
}
final StyleKeyFactoryCollector styleKeyFactoryCollector = (StyleKeyFactoryCollector) o;
if (!factories.equals(styleKeyFactoryCollector.factories))
{
return false;
}
return true;
}
/**
* Computes an hashcode for this factory.
*
* @return the hashcode.
* @see java.lang.Object#hashCode()
*/
public int hashCode()
{
return factories.hashCode();
}
}