| 1 | /** |
| 2 | * Licensed to jclouds, Inc. (jclouds) under one or more |
| 3 | * contributor license agreements. See the NOTICE file |
| 4 | * distributed with this work for additional information |
| 5 | * regarding copyright ownership. jclouds licenses this file |
| 6 | * to you under the Apache License, Version 2.0 (the |
| 7 | * "License"); you may not use this file except in compliance |
| 8 | * with the License. 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, |
| 13 | * software distributed under the License is distributed on an |
| 14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| 15 | * KIND, either express or implied. See the License for the |
| 16 | * specific language governing permissions and limitations |
| 17 | * under the License. |
| 18 | */ |
| 19 | package org.jclouds.byon.config; |
| 20 | |
| 21 | import static com.google.common.base.Preconditions.checkNotNull; |
| 22 | |
| 23 | import java.util.Map; |
| 24 | |
| 25 | import org.jclouds.byon.Node; |
| 26 | |
| 27 | import com.google.common.annotations.Beta; |
| 28 | import com.google.common.base.Functions; |
| 29 | import com.google.common.base.Supplier; |
| 30 | import com.google.common.base.Suppliers; |
| 31 | import com.google.common.cache.Cache; |
| 32 | import com.google.common.cache.CacheBuilder; |
| 33 | import com.google.common.cache.CacheLoader; |
| 34 | import com.google.inject.AbstractModule; |
| 35 | import com.google.inject.TypeLiteral; |
| 36 | |
| 37 | /** |
| 38 | * |
| 39 | * @author Adrian Cole |
| 40 | */ |
| 41 | @ConfiguresNodeStore |
| 42 | @Beta |
| 43 | public class CacheNodeStoreModule extends AbstractModule { |
| 44 | private final Cache<String, Node> backing; |
| 45 | |
| 46 | public CacheNodeStoreModule(Cache<String, Node> backing) { |
| 47 | this.backing = checkNotNull(backing, "backing"); |
| 48 | } |
| 49 | |
| 50 | public CacheNodeStoreModule(Map<String, Node> backing) { |
| 51 | this(CacheBuilder.newBuilder().<String, Node>build(CacheLoader.from(Functions.forMap(backing)))); |
| 52 | for (String node : backing.keySet()) |
| 53 | this.backing.getUnchecked(node); |
| 54 | } |
| 55 | |
| 56 | @Override |
| 57 | protected void configure() { |
| 58 | bind(new TypeLiteral<Cache<String, Node>>() { |
| 59 | }).toInstance(backing); |
| 60 | bind(new TypeLiteral<Supplier<Cache<String, Node>>>() { |
| 61 | }).toInstance(Suppliers.<Cache<String, Node>> ofInstance(backing)); |
| 62 | } |
| 63 | |
| 64 | } |