| 1 | /** |
| 2 | * |
| 3 | * Copyright (C) 2011 Cloud Conscious, LLC. <info@cloudconscious.com> |
| 4 | * |
| 5 | * ==================================================================== |
| 6 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 7 | * you may not use this file except in compliance with the License. |
| 8 | * You may obtain a copy of the License at |
| 9 | * |
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | * |
| 12 | * Unless required by applicable law or agreed to in writing, software |
| 13 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 15 | * See the License for the specific language governing permissions and |
| 16 | * limitations under the License. |
| 17 | * ==================================================================== |
| 18 | */ |
| 19 | package org.jclouds.compute.strategy.impl; |
| 20 | |
| 21 | import static com.google.common.base.Preconditions.checkNotNull; |
| 22 | import static com.google.common.base.Preconditions.checkState; |
| 23 | |
| 24 | import java.util.Map; |
| 25 | |
| 26 | import javax.annotation.Resource; |
| 27 | import javax.inject.Inject; |
| 28 | import javax.inject.Named; |
| 29 | import javax.inject.Singleton; |
| 30 | |
| 31 | import org.jclouds.compute.ComputeServiceAdapter; |
| 32 | import org.jclouds.compute.domain.ComputeMetadata; |
| 33 | import org.jclouds.compute.domain.NodeMetadata; |
| 34 | import org.jclouds.compute.domain.NodeState; |
| 35 | import org.jclouds.compute.domain.Template; |
| 36 | import org.jclouds.compute.predicates.NodePredicates; |
| 37 | import org.jclouds.compute.reference.ComputeServiceConstants; |
| 38 | import org.jclouds.compute.strategy.CreateNodeWithGroupEncodedIntoName; |
| 39 | import org.jclouds.compute.strategy.DestroyNodeStrategy; |
| 40 | import org.jclouds.compute.strategy.GetNodeMetadataStrategy; |
| 41 | import org.jclouds.compute.strategy.ListNodesStrategy; |
| 42 | import org.jclouds.compute.strategy.RebootNodeStrategy; |
| 43 | import org.jclouds.compute.strategy.ResumeNodeStrategy; |
| 44 | import org.jclouds.compute.strategy.SuspendNodeStrategy; |
| 45 | import org.jclouds.domain.Credentials; |
| 46 | import org.jclouds.logging.Logger; |
| 47 | |
| 48 | import com.google.common.base.Function; |
| 49 | import com.google.common.base.Predicate; |
| 50 | import com.google.common.collect.Iterables; |
| 51 | |
| 52 | /** |
| 53 | * @author Adrian Cole |
| 54 | * |
| 55 | */ |
| 56 | @Singleton |
| 57 | public class AdaptingComputeServiceStrategies<N, H, I, L> implements CreateNodeWithGroupEncodedIntoName, DestroyNodeStrategy, |
| 58 | GetNodeMetadataStrategy, ListNodesStrategy, RebootNodeStrategy, ResumeNodeStrategy, SuspendNodeStrategy { |
| 59 | @Resource |
| 60 | @Named(ComputeServiceConstants.COMPUTE_LOGGER) |
| 61 | protected Logger logger = Logger.NULL; |
| 62 | |
| 63 | private final Map<String, Credentials> credentialStore; |
| 64 | private final ComputeServiceAdapter<N, H, I, L> client; |
| 65 | private final Function<N, NodeMetadata> nodeMetadataAdapter; |
| 66 | |
| 67 | @Inject |
| 68 | public AdaptingComputeServiceStrategies(Map<String, Credentials> credentialStore, |
| 69 | ComputeServiceAdapter<N, H, I, L> client, Function<N, NodeMetadata> nodeMetadataAdapter) { |
| 70 | this.credentialStore = checkNotNull(credentialStore, "credentialStore"); |
| 71 | this.client = checkNotNull(client, "client"); |
| 72 | this.nodeMetadataAdapter = checkNotNull(nodeMetadataAdapter, "nodeMetadataAdapter"); |
| 73 | } |
| 74 | |
| 75 | @Override |
| 76 | public Iterable<? extends ComputeMetadata> listNodes() { |
| 77 | return listDetailsOnNodesMatching(NodePredicates.all()); |
| 78 | } |
| 79 | |
| 80 | @Override |
| 81 | public Iterable<? extends NodeMetadata> listDetailsOnNodesMatching(Predicate<ComputeMetadata> filter) { |
| 82 | return Iterables.filter(Iterables.transform(client.listNodes(), nodeMetadataAdapter), filter); |
| 83 | } |
| 84 | |
| 85 | @Override |
| 86 | public NodeMetadata getNode(String id) { |
| 87 | N node = client.getNode(checkNotNull(id, "id")); |
| 88 | return node == null ? null : nodeMetadataAdapter.apply(node); |
| 89 | } |
| 90 | |
| 91 | @Override |
| 92 | public NodeMetadata rebootNode(String id) { |
| 93 | NodeMetadata node = getNode(checkNotNull(id, "id")); |
| 94 | if (node == null || node.getState() == NodeState.TERMINATED) |
| 95 | return node; |
| 96 | client.rebootNode(id); |
| 97 | return node; |
| 98 | } |
| 99 | |
| 100 | @Override |
| 101 | public NodeMetadata resumeNode(String id) { |
| 102 | NodeMetadata node = getNode(checkNotNull(id, "id")); |
| 103 | if (node == null || node.getState() == NodeState.TERMINATED || node.getState() == NodeState.RUNNING) |
| 104 | return node; |
| 105 | client.resumeNode(id); |
| 106 | return node; |
| 107 | } |
| 108 | |
| 109 | @Override |
| 110 | public NodeMetadata suspendNode(String id) { |
| 111 | NodeMetadata node = getNode(checkNotNull(id, "id")); |
| 112 | if (node == null || node.getState() == NodeState.TERMINATED || node.getState() == NodeState.SUSPENDED) |
| 113 | return node; |
| 114 | client.suspendNode(id); |
| 115 | return node; |
| 116 | } |
| 117 | |
| 118 | @Override |
| 119 | public NodeMetadata destroyNode(String id) { |
| 120 | NodeMetadata node = getNode(checkNotNull(id, "id")); |
| 121 | if (node == null) |
| 122 | return node; |
| 123 | client.destroyNode(id); |
| 124 | return node; |
| 125 | } |
| 126 | |
| 127 | /** |
| 128 | * {@inheritDoc} |
| 129 | */ |
| 130 | @Override |
| 131 | public NodeMetadata createNodeWithGroupEncodedIntoName(String group, String name, Template template) { |
| 132 | checkState(group != null, "group (that which groups identical nodes together) must be specified"); |
| 133 | checkState(name != null && name.indexOf(group) != -1, "name should have %s encoded into it", group); |
| 134 | checkState(template != null, "template must be specified"); |
| 135 | |
| 136 | N from = client.createNodeWithGroupEncodedIntoNameThenStoreCredentials(group, name, template, credentialStore); |
| 137 | NodeMetadata node = nodeMetadataAdapter.apply(from); |
| 138 | return node; |
| 139 | } |
| 140 | |
| 141 | } |