org.eclipse.jetty.start.graph.CriteriaSetPredicate Maven / Gradle / Ivy
//
// ========================================================================
// Copyright (c) 1995-2015 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package org.eclipse.jetty.start.graph;
import java.util.HashSet;
import java.util.Set;
/**
* Should match against the provided set of {@link Selection#getCriteria()} values.
*
* Incomplete set is considered to be no-match.
*/
public class CriteriaSetPredicate implements Predicate
{
private final Set criteriaSet;
public CriteriaSetPredicate(String... criterias)
{
this.criteriaSet = new HashSet<>();
for (String name : criterias)
{
this.criteriaSet.add(name);
}
}
@Override
public boolean match(Node node)
{
Set selections = node.getSelections();
if (selections == null)
{
// empty sources list
return false;
}
Set actualCriterias = node.getSelectedCriteriaSet();
if (actualCriterias.size() != criteriaSet.size())
{
// non-equal sized set
return false;
}
for (String actualCriteria : actualCriterias)
{
if (!this.criteriaSet.contains(actualCriteria))
{
return false;
}
}
return true;
}
}