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.rest.annotations;
20
21 import static java.lang.annotation.ElementType.PARAMETER;
22 import static java.lang.annotation.RetentionPolicy.RUNTIME;
23
24 import java.lang.annotation.Retention;
25 import java.lang.annotation.Target;
26 import java.net.URI;
27
28 import javax.inject.Singleton;
29 import javax.ws.rs.PathParam;
30
31 import com.google.common.base.Function;
32
33 /**
34 * Extracts the endpoint of a parameter from an object.
35 *
36 * @see PathParam
37 * @author Adrian Cole
38 */
39 @Target(PARAMETER)
40 @Retention(RUNTIME)
41 public @interface EndpointParam {
42 @Singleton
43 public static class ReturnSame implements Function<Object, URI> {
44
45 @Override
46 public URI apply(Object from) {
47 // TODO check arg;
48 return (URI) from;
49 }
50
51 }
52
53 Class<? extends Function<Object, URI>> parser() default ReturnSame.class;
54 }