/*
* Copyright 2010 salaboy.
*
* 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.
* under the License.
*/
package org.drools.grid.services.strategies;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.drools.grid.ConnectorType;
import org.drools.grid.services.DirectoryInstance;
/**
*
* @author salaboy
*/
public class DirectoryInstanceByPrioritySelectionStrategy
implements
DirectoryInstanceSelectionStrategy {
private List<DirectoryInstance> directories;
public DirectoryInstance getBestDirectoryInstance() {
Collections.sort( this.directories,
new Comparator<DirectoryInstance>() {
private Map<ConnectorType, Integer> priorities
= new HashMap<ConnectorType, Integer>() {
{
put( ConnectorType.LOCAL,
1 );
// put("RioEnvironmentProvider", 2);
// put("HornetQEnvironmentProvider", 3);
put( ConnectorType.REMOTE,
4 );
}
};
public int compare(DirectoryInstance o1,
DirectoryInstance o2) {
return this.priorities.get( o1.getConnector().getConnectorType() )
.compareTo( this.priorities.get( o2.getConnector().getConnectorType() ) );
}
} );
return this.directories.get( 0 );
}
public void setDirectoryInstances(Map<String, DirectoryInstance> directoryInstances) {
List<DirectoryInstance> dirList = new ArrayList<DirectoryInstance>();
for ( DirectoryInstance directory : directoryInstances.values() ) {
dirList.add( directory );
}
this.directories = dirList;
}
public DirectoryInstance getBestDirectoryInstance(Map<String, DirectoryInstance> directoryInstances) {
setDirectoryInstances( directoryInstances );
return getBestDirectoryInstance();
}
}