/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.drill.exec.store.sys;
import java.util.Iterator;
import org.apache.drill.exec.ops.FragmentContext;
import org.apache.drill.exec.proto.CoordinationProtos.DrillbitEndpoint;
public class DrillbitIterator implements Iterator<Object> {
static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(DrillbitIterator.class);
private Iterator<DrillbitEndpoint> endpoints;
public DrillbitIterator(FragmentContext c) {
this.endpoints = c.getDrillbitContext().getBits().iterator();
}
public static class DrillbitInstance {
public String host;
public int user_port;
public int control_port;
public int data_port;
}
@Override
public boolean hasNext() {
return endpoints.hasNext();
}
@Override
public Object next() {
DrillbitEndpoint ep = endpoints.next();
DrillbitInstance i = new DrillbitInstance();
i.host = ep.getAddress();
i.user_port = ep.getUserPort();
i.control_port = ep.getControlPort();
i.data_port = ep.getDataPort();
return i;
}
@Override
public void remove() {
throw new UnsupportedOperationException();
}
}