/* ======================================
* JFreeChart : a free Java chart library
* ======================================
*
* (C) Copyright 2000-2011, by Object Refinery Limited and Contributors.
*
* Project Info: http://www.jfree.org/jfreechart/index.html
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library 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.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
* [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
* Other names may be trademarks of their respective owners.]
*
* -------------------------------
* CustomCategoryURLGenerator.java
* -------------------------------
* (C) Copyright 2008, by Diego Pierangeli and Contributors.
*
* Original Author: Diego Pierangeli;
* Contributors: David Gilbert (for Object Refinery Limited);
*
* Changes:
* --------
* 23-Apr-2008 : Version 1, contributed by Diego Pierangeli based on
* CustomXYURLGenerator by Richard Atkinson, with some
* modifications by David Gilbert(DG);
*
*/
package org.jfree.chart.urls;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import org.jfree.data.category.CategoryDataset;
import org.jfree.util.PublicCloneable;
/**
* A custom URL generator.
*/
public class CustomCategoryURLGenerator implements CategoryURLGenerator,
Cloneable, PublicCloneable, Serializable {
/** Storage for the URLs. */
private ArrayList urlSeries = new ArrayList();
/**
* Default constructor.
*/
public CustomCategoryURLGenerator() {
super();
}
/**
* Returns the number of URL lists stored by the renderer.
*
* @return The list count.
*/
public int getListCount() {
return this.urlSeries.size();
}
/**
* Returns the number of URLs in a given list.
*
* @param list the list index (zero based).
*
* @return The URL count.
*/
public int getURLCount(int list) {
int result = 0;
List urls = (List) this.urlSeries.get(list);
if (urls != null) {
result = urls.size();
}
return result;
}
/**
* Returns the URL for an item.
*
* @param series the series index.
* @param item the item index.
*
* @return The URL (possibly <code>null</code>).
*/
public String getURL(int series, int item) {
String result = null;
if (series < getListCount()) {
List urls = (List) this.urlSeries.get(series);
if (urls != null) {
if (item < urls.size()) {
result = (String) urls.get(item);
}
}
}
return result;
}
/**
* Generates a URL.
*
* @param dataset the dataset (ignored in this implementation).
* @param series the series (zero-based index).
* @param item the item (zero-based index).
*
* @return A string containing the URL (possibly <code>null</code>).
*/
public String generateURL(CategoryDataset dataset, int series, int item) {
return getURL(series, item);
}
/**
* Adds a list of URLs.
*
* @param urls the list of URLs (<code>null</code> permitted).
*/
public void addURLSeries(List urls) {
List listToAdd = null;
if (urls != null) {
listToAdd = new java.util.ArrayList(urls);
}
this.urlSeries.add(listToAdd);
}
/**
* Tests if this object is equal to another.
*
* @param obj the other object.
*
* @return A boolean.
*/
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
if (!(obj instanceof CustomCategoryURLGenerator)) {
return false;
}
CustomCategoryURLGenerator generator = (CustomCategoryURLGenerator) obj;
int listCount = getListCount();
if (listCount != generator.getListCount()) {
return false;
}
for (int series = 0; series < listCount; series++) {
int urlCount = getURLCount(series);
if (urlCount != generator.getURLCount(series)) {
return false;
}
for (int item = 0; item < urlCount; item++) {
String u1 = getURL(series, item);
String u2 = generator.getURL(series, item);
if (u1 != null) {
if (!u1.equals(u2)) {
return false;
}
} else {
if (u2 != null) {
return false;
}
}
}
}
return true;
}
/**
* Returns a new generator that is a copy of, and independent from, this
* generator.
*
* @return A clone.
*
* @throws CloneNotSupportedException if there is a problem with cloning.
*/
public Object clone() throws CloneNotSupportedException {
CustomCategoryURLGenerator clone
= (CustomCategoryURLGenerator) super.clone();
clone.urlSeries = new java.util.ArrayList(this.urlSeries);
return clone;
}
}
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