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// 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 com.cloud.consoleproxy;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.Map;
import javax.naming.ConfigurationException;
import com.cloud.utils.component.AdapterBase;
import com.cloud.vm.ConsoleProxy;
public class ConsoleProxyBalanceAllocator extends AdapterBase implements ConsoleProxyAllocator {
@Override
public Long allocProxy(List<? extends ConsoleProxy> candidates, final Map<Long, Integer> loadInfo, long dataCenterId) {
List<ConsoleProxy> allocationList = new ArrayList<ConsoleProxy>(candidates);
Collections.sort(candidates, new Comparator<ConsoleProxy>() {
@Override
public int compare(ConsoleProxy x, ConsoleProxy y) {
Integer loadOfX = loadInfo.get(x.getId());
Integer loadOfY = loadInfo.get(y.getId());
if (loadOfX != null && loadOfY != null) {
if (loadOfX < loadOfY)
return -1;
else if (loadOfX > loadOfY)
return 1;
return 0;
} else if (loadOfX == null && loadOfY == null) {
return 0;
} else {
if (loadOfX == null)
return -1;
return 1;
}
}
});
return (allocationList.size() > 0) ? allocationList.get(0).getId() : null;
}
@Override
public boolean configure(String name, Map<String, Object> params) throws ConfigurationException {
return true;
}
@Override
public boolean start() {
return true;
}
@Override
public boolean stop() {
return true;
}
}