| 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.compute; |
| 20 | |
| 21 | import static org.jclouds.rest.RestContextFactory.createContextBuilder; |
| 22 | import static org.jclouds.util.Throwables2.propagateAuthorizationOrOriginalException; |
| 23 | |
| 24 | import java.util.Properties; |
| 25 | |
| 26 | import org.jclouds.javax.annotation.Nullable; |
| 27 | |
| 28 | import org.jclouds.rest.RestContextFactory; |
| 29 | import org.jclouds.rest.RestContextSpec; |
| 30 | |
| 31 | import com.google.inject.Module; |
| 32 | |
| 33 | /** |
| 34 | * Helper class to instantiate {@code ComputeServiceContext} instances. |
| 35 | * |
| 36 | * @author Adrian Cole |
| 37 | */ |
| 38 | public class ComputeServiceContextFactory { |
| 39 | |
| 40 | private final RestContextFactory contextFactory; |
| 41 | |
| 42 | /** |
| 43 | * Initializes with the default properties built-in to jclouds. This is typically stored in the |
| 44 | * classpath resource {@code rest.properties} |
| 45 | * |
| 46 | * @see RestContextFactory#getPropertiesFromResource |
| 47 | */ |
| 48 | public ComputeServiceContextFactory() { |
| 49 | this(new RestContextFactory()); |
| 50 | } |
| 51 | |
| 52 | /** |
| 53 | * Finds definitions in the specified properties. |
| 54 | */ |
| 55 | public ComputeServiceContextFactory(Properties properties) { |
| 56 | this(new RestContextFactory(properties)); |
| 57 | } |
| 58 | |
| 59 | /** |
| 60 | * |
| 61 | * Uses the supplied RestContextFactory to create {@link ComputeServiceContext}s |
| 62 | */ |
| 63 | public ComputeServiceContextFactory(RestContextFactory restContextFactory) { |
| 64 | this.contextFactory = restContextFactory; |
| 65 | } |
| 66 | |
| 67 | public static <S, A> ComputeServiceContext buildContextUnwrappingExceptions( |
| 68 | ComputeServiceContextBuilder<S, A> builder) { |
| 69 | try { |
| 70 | return builder.buildComputeServiceContext(); |
| 71 | } catch (Exception e) { |
| 72 | return propagateAuthorizationOrOriginalException(e); |
| 73 | } |
| 74 | } |
| 75 | |
| 76 | /** |
| 77 | * @see RestContextFactory#createContextBuilder(String, String, String) |
| 78 | */ |
| 79 | public ComputeServiceContext createContext(String provider, String identity, String credential) { |
| 80 | ComputeServiceContextBuilder<?, ?> builder = ComputeServiceContextBuilder.class.cast(contextFactory |
| 81 | .createContextBuilder(provider, identity, credential)); |
| 82 | return buildContextUnwrappingExceptions(builder); |
| 83 | } |
| 84 | |
| 85 | /** |
| 86 | * @see RestContextFactory#createContextBuilder(String, Properties) |
| 87 | */ |
| 88 | public ComputeServiceContext createContext(String provider, Properties overrides) { |
| 89 | ComputeServiceContextBuilder<?, ?> builder = ComputeServiceContextBuilder.class.cast(contextFactory |
| 90 | .createContextBuilder(provider, overrides)); |
| 91 | return buildContextUnwrappingExceptions(builder); |
| 92 | } |
| 93 | |
| 94 | /** |
| 95 | * @see RestContextFactory#createContextBuilder(String, Iterable) |
| 96 | */ |
| 97 | public ComputeServiceContext createContext(String provider, Iterable<? extends Module> modules, Properties overrides) { |
| 98 | ComputeServiceContextBuilder<?, ?> builder = ComputeServiceContextBuilder.class.cast(contextFactory |
| 99 | .createContextBuilder(provider, modules, overrides)); |
| 100 | return buildContextUnwrappingExceptions(builder); |
| 101 | |
| 102 | } |
| 103 | |
| 104 | /** |
| 105 | * @see RestContextFactory#createContextBuilder(String, String,String, Iterable) |
| 106 | */ |
| 107 | public ComputeServiceContext createContext(String provider, @Nullable String identity, @Nullable String credential, |
| 108 | Iterable<? extends Module> modules) { |
| 109 | ComputeServiceContextBuilder<?, ?> builder = ComputeServiceContextBuilder.class.cast(contextFactory |
| 110 | .createContextBuilder(provider, identity, credential, modules)); |
| 111 | return buildContextUnwrappingExceptions(builder); |
| 112 | } |
| 113 | |
| 114 | /** |
| 115 | * @see RestContextFactory#createContextBuilder(String, String,String, Iterable, Properties) |
| 116 | */ |
| 117 | public ComputeServiceContext createContext(String provider, @Nullable String identity, @Nullable String credential, |
| 118 | Iterable<? extends Module> modules, Properties overrides) { |
| 119 | ComputeServiceContextBuilder<?, ?> builder = ComputeServiceContextBuilder.class.cast(contextFactory |
| 120 | .createContextBuilder(provider, identity, credential, modules, overrides)); |
| 121 | return buildContextUnwrappingExceptions(builder); |
| 122 | } |
| 123 | |
| 124 | /** |
| 125 | * @see RestContextFactory#createContextBuilder(RestContextSpec) |
| 126 | */ |
| 127 | public <S, A> ComputeServiceContext createContext(RestContextSpec<S, A> contextSpec) { |
| 128 | ComputeServiceContextBuilder<?, ?> builder = ComputeServiceContextBuilder.class |
| 129 | .cast(createContextBuilder(contextSpec)); |
| 130 | return buildContextUnwrappingExceptions(builder); |
| 131 | |
| 132 | } |
| 133 | |
| 134 | /** |
| 135 | * @see RestContextFactory#createContextBuilder(RestContextSpec, Properties) |
| 136 | */ |
| 137 | public <S, A> ComputeServiceContext createContext(RestContextSpec<S, A> contextSpec, Properties overrides) { |
| 138 | ComputeServiceContextBuilder<?, ?> builder = ComputeServiceContextBuilder.class.cast(createContextBuilder( |
| 139 | contextSpec, overrides)); |
| 140 | return buildContextUnwrappingExceptions(builder); |
| 141 | } |
| 142 | |
| 143 | /** |
| 144 | * @see RestContextFactory#createContextBuilder(RestContextSpec, Iterable, Properties) |
| 145 | */ |
| 146 | public <S, A> ComputeServiceContext createContext(RestContextSpec<S, A> contextSpec, Iterable<Module> modules, |
| 147 | Properties overrides) { |
| 148 | ComputeServiceContextBuilder<?, ?> builder = ComputeServiceContextBuilder.class.cast(createContextBuilder( |
| 149 | contextSpec, modules, overrides)); |
| 150 | return buildContextUnwrappingExceptions(builder); |
| 151 | } |
| 152 | |
| 153 | } |