/*
* 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.elasticstack.compute.functions;
import static com.google.common.base.Preconditions.checkNotNull;
import static org.jclouds.compute.predicates.ImagePredicates.idEquals;
import java.util.Map;
import java.util.Set;
import javax.annotation.Resource;
import javax.inject.Inject;
import javax.inject.Singleton;
import org.jclouds.collect.Memoized;
import org.jclouds.compute.domain.HardwareBuilder;
import org.jclouds.compute.domain.Image;
import org.jclouds.compute.domain.NodeMetadata;
import org.jclouds.compute.domain.NodeMetadata.Status;
import org.jclouds.compute.domain.NodeMetadataBuilder;
import org.jclouds.compute.domain.Processor;
import org.jclouds.compute.domain.Volume;
import org.jclouds.compute.domain.VolumeBuilder;
import org.jclouds.compute.functions.GroupNamingConvention;
import org.jclouds.domain.Location;
import org.jclouds.elasticstack.domain.Device;
import org.jclouds.elasticstack.domain.DriveInfo;
import org.jclouds.elasticstack.domain.Server;
import org.jclouds.elasticstack.domain.ServerInfo;
import org.jclouds.elasticstack.domain.ServerStatus;
import org.jclouds.logging.Logger;
import com.google.common.base.Function;
import com.google.common.base.Optional;
import com.google.common.base.Supplier;
import com.google.common.cache.LoadingCache;
import com.google.common.collect.FluentIterable;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Iterables;
import com.google.common.util.concurrent.UncheckedExecutionException;
/**
* @author Adrian Cole
*/
@Singleton
public class ServerInfoToNodeMetadata implements Function<ServerInfo, NodeMetadata> {
public static final Map<ServerStatus, Status> serverStatusToNodeStatus = ImmutableMap
.<ServerStatus, Status> builder().put(ServerStatus.ACTIVE, Status.RUNNING)//
.put(ServerStatus.STOPPED, Status.SUSPENDED)//
.put(ServerStatus.PAUSED, Status.SUSPENDED)//
.put(ServerStatus.DUMPED, Status.PENDING)//
.put(ServerStatus.DEAD, Status.TERMINATED)//
.put(ServerStatus.UNRECOGNIZED, Status.UNRECOGNIZED)//
.build();
private final Function<Server, String> getImageIdFromServer;
private final Supplier<Set<? extends Image>> images;
private final Supplier<Location> locationSupplier;
private final Function<Device, Volume> deviceToVolume;
private final GroupNamingConvention nodeNamingConvention;
@Inject
ServerInfoToNodeMetadata(Function<Server, String> getImageIdFromServer, @Memoized Supplier<Set<? extends Image>> images,
Function<Device, Volume> deviceToVolume, Supplier<Location> locationSupplier,
GroupNamingConvention.Factory namingConvention) {
this.nodeNamingConvention = checkNotNull(namingConvention, "namingConvention").createWithoutPrefix();
this.locationSupplier = checkNotNull(locationSupplier, "locationSupplier");
this.deviceToVolume = checkNotNull(deviceToVolume, "deviceToVolume");
this.images = checkNotNull(images, "images");
this.getImageIdFromServer = checkNotNull(getImageIdFromServer, "getImageIdFromServer");
}
@Override
public NodeMetadata apply(ServerInfo from) {
NodeMetadataBuilder builder = new NodeMetadataBuilder();
builder.ids(from.getUuid());
builder.name(from.getName());
builder.location(locationSupplier.get());
builder.group(nodeNamingConvention.groupInUniqueNameOrNull(from.getName()));
builder.tags(from.getTags());
builder.userMetadata(from.getUserMetadata());
String imageId = getImageIdFromServer.apply(from);
if (imageId != null) {
Optional<? extends Image> image = FluentIterable.from(images.get()).firstMatch(idEquals(imageId));
if (image.isPresent()) {
builder.operatingSystem(image.get().getOperatingSystem());
}
}
builder.hardware(new HardwareBuilder().ids(from.getUuid()).hypervisor("kvm")
.processors(ImmutableList.of(new Processor(1, from.getCpu()))).ram(from.getMem())
.volumes(Iterables.transform(from.getDevices().values(), deviceToVolume)).build());
builder.status(serverStatusToNodeStatus.get(from.getStatus()));
builder.publicAddresses(ImmutableSet.<String> of(from.getNics().get(0).getDhcp()));
builder.privateAddresses(ImmutableSet.<String> of());
return builder.build();
}
@Singleton
public static final class DeviceToVolume implements Function<Device, Volume> {
@Resource
protected Logger logger = Logger.NULL;
private final LoadingCache<String, DriveInfo> cache;
@Inject
public DeviceToVolume(LoadingCache<String, DriveInfo> cache) {
this.cache = checkNotNull(cache, "cache");
}
@Override
public Volume apply(Device input) {
VolumeBuilder builder = new VolumeBuilder();
builder.id(input.getId());
try {
DriveInfo drive = cache.getUnchecked(input.getDriveUuid());
builder.size(drive.getSize() / (float) (1024 * 1024));
} catch (NullPointerException e) {
logger.debug("drive %s not found", input.getDriveUuid());
} catch (UncheckedExecutionException e) {
logger.warn(e, "error finding drive %s: %s", input.getDriveUuid(), e.getMessage());
}
return new VolumeBuilder().durable(true).type(Volume.Type.NAS).build();
}
}
/**
* When we create the boot drive of the server, by convention we set the name
* to the image it came from.
*
* @author Adrian Cole
*
*/
@Singleton
public static class GetImageIdFromServer implements Function<Server, String> {
@Resource
protected Logger logger = Logger.NULL;
private final LoadingCache<String, DriveInfo> cache;
@Inject
public GetImageIdFromServer(LoadingCache<String, DriveInfo> cache) {
this.cache = cache;
}
@Override
public String apply(Server from) {
String imageId = null;
String bootDeviceId = Iterables.get(from.getBootDeviceIds(), 0);
Device bootDevice = from.getDevices().get(bootDeviceId);
if (bootDevice != null) {
try {
DriveInfo drive = cache.getUnchecked(bootDevice.getDriveUuid());
imageId = drive.getName();
} catch (NullPointerException e) {
logger.debug("drive %s not found", bootDevice.getDriveUuid());
} catch (UncheckedExecutionException e) {
logger.warn(e, "error finding drive %s: %s", bootDevice.getDriveUuid(), e.getMessage());
}
}
return imageId;
}
}
}