/*
* Copyright DataStax, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.datastax.oss.driver.internal.core.loadbalancing.nodeset;
import com.datastax.oss.driver.api.core.metadata.Node;
import edu.umd.cs.findbugs.annotations.NonNull;
import edu.umd.cs.findbugs.annotations.Nullable;
import java.util.Collections;
import java.util.Set;
import java.util.concurrent.CopyOnWriteArraySet;
import net.jcip.annotations.ThreadSafe;
@ThreadSafe
public class DcAgnosticNodeSet implements NodeSet {
private final Set<Node> nodes = new CopyOnWriteArraySet<>();
@Override
public boolean add(@NonNull Node node) {
return nodes.add(node);
}
@Override
public boolean remove(@NonNull Node node) {
return nodes.remove(node);
}
@Override
@NonNull
public Set<Node> dc(@Nullable String dc) {
return nodes;
}
@Override
public Set<String> dcs() {
return Collections.emptySet();
}
}