com.facebook.presto.jdbc.internal.spi.NodeManager Maven / Gradle / Ivy
/*
* 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.facebook.presto.jdbc.internal.spi;
import java.util.Set;
import static com.facebook.presto.jdbc.internal.spi.StandardErrorCode.NO_NODES_AVAILABLE;
public interface NodeManager
{
Set getAllNodes();
Set getWorkerNodes();
Node getCurrentNode();
String getEnvironment();
default Set getRequiredWorkerNodes()
{
Set nodes = getWorkerNodes();
if (nodes.isEmpty()) {
throw new PrestoException(NO_NODES_AVAILABLE, "No nodes available to run query");
}
return nodes;
}
}
© 2015 - 2024 Weber Informatics LLC | Privacy Policy