/*
* ProActive Parallel Suite(TM):
* The Open Source library for parallel and distributed
* Workflows & Scheduling, Orchestration, Cloud Automation
* and Big Data Analysis on Enterprise Grids & Clouds.
*
* Copyright (c) 2007 - 2017 ActiveEon
* Contact: contact@activeeon.com
*
* This library is free software: you can redistribute it and/or
* modify it under the terms of the GNU Affero General Public License
* as published by the Free Software Foundation: version 3 of
* the License.
*
* 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* If needed, contact us to obtain a release under GPL Version 2 or 3
* or a different license than the AGPL.
*/
package org.ow2.proactive.resourcemanager.frontend.topology.clustering;
import java.util.LinkedList;
import java.util.List;
import org.objectweb.proactive.annotation.PublicAPI;
/**
* Class represents the cluster of elements grouped by their proximity.
* One element can belong only to one cluster, so it is one-to-many relationship
* (one cluster - many nodes).
*
*/
@PublicAPI
public class Cluster<Element> {
private String id = "";
private int hashCode = 0;
private LinkedList<Element> elements = new LinkedList<>();
public Cluster(String id, Element element) {
elements.add(element);
this.id = id;
hashCode = id.hashCode();
}
public void add(List<Element> elements) {
this.elements.addAll(elements);
}
public void remove(List<Element> elements) {
this.elements.removeAll(elements);
}
public void removeLast(int number) {
// removeLast will throw NoSuchElementException if number is bigger than list size
for (int i = 0; i < number; i++) {
this.elements.removeLast();
}
}
public List<Element> getElements() {
return elements;
}
public int size() {
return elements.size();
}
public String toString() {
return "Cluster \"" + id + "\"";
}
public boolean equals(Object obj) {
if (!(obj instanceof Cluster<?>))
return false;
return this.id.equals(((Cluster<?>) obj).id);
}
public int hashCode() {
return hashCode;
}
}