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Diffstat (limited to 'jetty-start/src/main/java/org/eclipse/jetty/start/graph/CriteriaSetPredicate.java')
| -rw-r--r-- | jetty-start/src/main/java/org/eclipse/jetty/start/graph/CriteriaSetPredicate.java | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/jetty-start/src/main/java/org/eclipse/jetty/start/graph/CriteriaSetPredicate.java b/jetty-start/src/main/java/org/eclipse/jetty/start/graph/CriteriaSetPredicate.java new file mode 100644 index 0000000000..7268f828a8 --- /dev/null +++ b/jetty-start/src/main/java/org/eclipse/jetty/start/graph/CriteriaSetPredicate.java @@ -0,0 +1,71 @@ +// +// ======================================================================== +// Copyright (c) 1995-2016 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. + * <p> + * Incomplete set is considered to be no-match. + */ +public class CriteriaSetPredicate implements Predicate +{ + private final Set<String> criteriaSet; + + public CriteriaSetPredicate(String... criterias) + { + this.criteriaSet = new HashSet<>(); + + for (String name : criterias) + { + this.criteriaSet.add(name); + } + } + + @Override + public boolean match(Node<?> node) + { + Set<Selection> selections = node.getSelections(); + if (selections == null) + { + // empty sources list + return false; + } + + Set<String> 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; + } + +}
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