/*
* 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.jclouds.cloudstack.compute.functions;
import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.collect.Iterables.filter;
import static com.google.common.collect.Iterables.transform;
import static com.google.common.collect.Sets.filter;
import java.util.Set;
import javax.inject.Inject;
import org.jclouds.compute.ComputeService;
import org.jclouds.compute.domain.NodeMetadata;
import org.jclouds.compute.predicates.NodePredicates;
import org.jclouds.domain.LocationScope;
import org.jclouds.cloudstack.compute.predicates.AllNodesInGroupTerminated;
import org.jclouds.cloudstack.domain.ZoneAndName;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Function;
import com.google.common.base.Predicate;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Multimap;
import com.google.common.collect.Multimaps;
/**
*
* @author Adrian Cole
*/
public class OrphanedGroupsByZoneId implements Function<Set<? extends NodeMetadata>, Multimap<String, String>> {
private final Predicate<ZoneAndName> allNodesInGroupTerminated;
@Inject
protected OrphanedGroupsByZoneId(ComputeService computeService) {
this(new AllNodesInGroupTerminated(checkNotNull(computeService, "computeService")));
}
@VisibleForTesting
OrphanedGroupsByZoneId(Predicate<ZoneAndName> allNodesInGroupTerminated) {
this.allNodesInGroupTerminated = checkNotNull(allNodesInGroupTerminated, "allNodesInGroupTerminated");
}
public Multimap<String, String> apply(Set<? extends NodeMetadata> deadNodes) {
Iterable<? extends NodeMetadata> nodesWithGroup = filter(deadNodes, NodePredicates.hasGroup());
Set<ZoneAndName> zoneAndGroupNames = ImmutableSet.copyOf(filter(transform(nodesWithGroup,
new Function<NodeMetadata, ZoneAndName>() {
@Override
public ZoneAndName apply(NodeMetadata input) {
String zoneId = input.getLocation().getScope() == LocationScope.HOST ? input.getLocation()
.getParent().getId() : input.getLocation().getId();
return ZoneAndName.fromZoneAndName(zoneId, input.getGroup());
}
}), allNodesInGroupTerminated));
Multimap<String, String> zoneToZoneAndGroupNames = Multimaps.transformValues(Multimaps.index(zoneAndGroupNames,
ZoneAndName.ZONE_FUNCTION), ZoneAndName.NAME_FUNCTION);
return zoneToZoneAndGroupNames;
}
}