Package org.jclouds.openstack.nova.v2_0.compute.strategy

Source Code of org.jclouds.openstack.nova.v2_0.compute.strategy.ApplyNovaTemplateOptionsCreateNodesWithGroupEncodedIntoNameThenAddToSet

/**
* Licensed to jclouds, Inc. (jclouds) under one or more
* contributor license agreements.  See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership.  jclouds 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.openstack.nova.v2_0.compute.strategy;

import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;
import static org.jclouds.ssh.SshKeys.fingerprintPrivateKey;

import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.atomic.AtomicReference;

import javax.inject.Inject;
import javax.inject.Named;
import javax.inject.Singleton;

import org.jclouds.Constants;
import org.jclouds.compute.config.CustomizationResponse;
import org.jclouds.compute.domain.NodeMetadata;
import org.jclouds.compute.domain.Template;
import org.jclouds.compute.functions.GroupNamingConvention;
import org.jclouds.compute.strategy.CreateNodeWithGroupEncodedIntoName;
import org.jclouds.compute.strategy.CustomizeNodeAndAddToGoodMapOrPutExceptionIntoBadMap;
import org.jclouds.compute.strategy.ListNodesStrategy;
import org.jclouds.compute.strategy.impl.CreateNodesWithGroupEncodedIntoNameThenAddToSet;
import org.jclouds.openstack.nova.v2_0.NovaApi;
import org.jclouds.openstack.nova.v2_0.compute.functions.AllocateAndAddFloatingIpToNode;
import org.jclouds.openstack.nova.v2_0.compute.options.NovaTemplateOptions;
import org.jclouds.openstack.nova.v2_0.domain.KeyPair;
import org.jclouds.openstack.nova.v2_0.domain.zonescoped.SecurityGroupInZone;
import org.jclouds.openstack.nova.v2_0.domain.zonescoped.ZoneAndName;
import org.jclouds.openstack.nova.v2_0.domain.zonescoped.ZoneSecurityGroupNameAndPorts;

import com.google.common.base.Throwables;
import com.google.common.cache.LoadingCache;
import com.google.common.collect.Multimap;
import com.google.common.primitives.Ints;
import com.google.common.util.concurrent.Futures;
import com.google.common.util.concurrent.ListenableFuture;
import com.google.common.util.concurrent.ListeningExecutorService;

/**
*
* @author Adrian Cole
*/
@Singleton
public class ApplyNovaTemplateOptionsCreateNodesWithGroupEncodedIntoNameThenAddToSet extends
         CreateNodesWithGroupEncodedIntoNameThenAddToSet {

   private final AllocateAndAddFloatingIpToNode createAndAddFloatingIpToNode;
   private final LoadingCache<ZoneAndName, SecurityGroupInZone> securityGroupCache;
   private final LoadingCache<ZoneAndName, KeyPair> keyPairCache;
   private final NovaApi novaApi;

   @Inject
   protected ApplyNovaTemplateOptionsCreateNodesWithGroupEncodedIntoNameThenAddToSet(
            CreateNodeWithGroupEncodedIntoName addNodeWithTagStrategy,
            ListNodesStrategy listNodesStrategy,
            GroupNamingConvention.Factory namingConvention,
            CustomizeNodeAndAddToGoodMapOrPutExceptionIntoBadMap.Factory customizeNodeAndAddToGoodMapOrPutExceptionIntoBadMapFactory,
            @Named(Constants.PROPERTY_USER_THREADS) ListeningExecutorService userExecutor,
            AllocateAndAddFloatingIpToNode createAndAddFloatingIpToNode,
            LoadingCache<ZoneAndName, SecurityGroupInZone> securityGroupCache,
            LoadingCache<ZoneAndName, KeyPair> keyPairCache, NovaApi novaApi) {
      super(addNodeWithTagStrategy, listNodesStrategy, namingConvention, userExecutor,
               customizeNodeAndAddToGoodMapOrPutExceptionIntoBadMapFactory);
      this.securityGroupCache = checkNotNull(securityGroupCache, "securityGroupCache");
      this.keyPairCache = checkNotNull(keyPairCache, "keyPairCache");
      this.createAndAddFloatingIpToNode = checkNotNull(createAndAddFloatingIpToNode,
               "createAndAddFloatingIpToNode");
      this.novaApi = checkNotNull(novaApi, "novaApi");
   }

   @Override
   public Map<?, ListenableFuture<Void>> execute(String group, int count, Template template, Set<NodeMetadata> goodNodes,
            Map<NodeMetadata, Exception> badNodes, Multimap<NodeMetadata, CustomizationResponse> customizationResponses) {

      Template mutableTemplate = template.clone();

      NovaTemplateOptions templateOptions = NovaTemplateOptions.class.cast(mutableTemplate.getOptions());

      assert template.getOptions().equals(templateOptions) : "options didn't clone properly";

      String zone = mutableTemplate.getLocation().getId();

      if (templateOptions.shouldAutoAssignFloatingIp()) {
         checkArgument(novaApi.getFloatingIPExtensionForZone(zone).isPresent(),
                  "Floating IPs are required by options, but the extension is not available! options: %s",
                  templateOptions);
      }

      boolean keyPairExtensionPresent = novaApi.getKeyPairExtensionForZone(zone).isPresent();
      if (templateOptions.shouldGenerateKeyPair()) {
         checkArgument(keyPairExtensionPresent,
                  "Key Pairs are required by options, but the extension is not available! options: %s", templateOptions);
         KeyPair keyPair = keyPairCache.getUnchecked(ZoneAndName.fromZoneAndName(zone, namingConvention.create()
                  .sharedNameForGroup(group)));
         keyPairCache.asMap().put(ZoneAndName.fromZoneAndName(zone, keyPair.getName()), keyPair);
         templateOptions.keyPairName(keyPair.getName());
      } else if (templateOptions.getKeyPairName() != null) {
         checkArgument(keyPairExtensionPresent,
                  "Key Pairs are required by options, but the extension is not available! options: %s", templateOptions);
         if (templateOptions.getLoginPrivateKey() != null) {
            String pem = templateOptions.getLoginPrivateKey();
            KeyPair keyPair = KeyPair.builder().name(templateOptions.getKeyPairName())
                     .fingerprint(fingerprintPrivateKey(pem)).privateKey(pem).build();
            keyPairCache.asMap().put(ZoneAndName.fromZoneAndName(zone, keyPair.getName()), keyPair);
         }
      }

      boolean securityGroupExtensionPresent = novaApi.getSecurityGroupExtensionForZone(zone).isPresent();
      List<Integer> inboundPorts = Ints.asList(templateOptions.getInboundPorts());
      if (templateOptions.getSecurityGroupNames().isPresent()
            && templateOptions.getSecurityGroupNames().get().size() > 0) {
         checkArgument(securityGroupExtensionPresent,
                  "Security groups are required by options, but the extension is not available! options: %s",
                  templateOptions);
      } else if (securityGroupExtensionPresent) {
         if (!templateOptions.getSecurityGroupNames().isPresent() && inboundPorts.size() > 0) {
            String securityGroupName = namingConvention.create().sharedNameForGroup(group);
            try {
               securityGroupCache.get(new ZoneSecurityGroupNameAndPorts(zone, securityGroupName, inboundPorts));
            } catch (ExecutionException e) {
               throw Throwables.propagate(e.getCause());
            }
            templateOptions.securityGroupNames(securityGroupName);
         }
      }

      return super.execute(group, count, mutableTemplate, goodNodes, badNodes, customizationResponses);
   }

   @Override
   protected ListenableFuture<AtomicReference<NodeMetadata>> createNodeInGroupWithNameAndTemplate(String group,
            final String name, Template template) {

      ListenableFuture<AtomicReference<NodeMetadata>> future = super.createNodeInGroupWithNameAndTemplate(group, name, template);
      NovaTemplateOptions templateOptions = NovaTemplateOptions.class.cast(template.getOptions());

      if (templateOptions.shouldAutoAssignFloatingIp()) {
         return Futures.transform(future, createAndAddFloatingIpToNode, userExecutor);
      } else {
         return future;
      }
   }

}
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