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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.provision.node.filter;
import com.yahoo.config.provision.NodeType;
import com.yahoo.text.StringUtilities;
import com.yahoo.vespa.hosted.provision.Node;
import java.util.EnumSet;
import java.util.Objects;
import java.util.function.Predicate;
import java.util.stream.Collectors;
/**
* @author bratseth
*/
public class NodeTypeFilter {
private NodeTypeFilter() {}
private static Predicate<Node> makePredicate(EnumSet<NodeType> types) {
Objects.requireNonNull(types, "Node types cannot be null");
if (types.isEmpty()) return node -> true;
return node -> types.contains(node.type());
}
/** Returns a copy of the given filter which only matches for the given type */
public static Predicate<Node> from(NodeType type) {
return makePredicate(EnumSet.of(type));
}
/** Returns a node filter which matches a comma or space-separated list of types */
public static Predicate<Node> from(String types) {
return makePredicate(StringUtilities.split(types).stream()
.map(NodeType::valueOf)
.collect(Collectors.toCollection(() -> EnumSet.noneOf(NodeType.class))));
}
}
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