| 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.atmos.binders; |
| 20 | |
| 21 | import static com.google.common.base.Preconditions.checkArgument; |
| 22 | import static com.google.common.base.Preconditions.checkNotNull; |
| 23 | |
| 24 | import java.util.Map; |
| 25 | |
| 26 | import javax.inject.Singleton; |
| 27 | |
| 28 | import org.jclouds.atmos.domain.UserMetadata; |
| 29 | import org.jclouds.http.HttpRequest; |
| 30 | import org.jclouds.http.utils.ModifyRequest; |
| 31 | import org.jclouds.rest.Binder; |
| 32 | |
| 33 | import com.google.common.base.Function; |
| 34 | import com.google.common.base.Joiner; |
| 35 | import com.google.common.collect.ImmutableMap; |
| 36 | import com.google.common.collect.ImmutableMap.Builder; |
| 37 | import com.google.common.collect.Multimaps; |
| 38 | |
| 39 | /** |
| 40 | * @author Adrian Cole |
| 41 | */ |
| 42 | @Singleton |
| 43 | public class BindUserMetadataToHeaders implements Binder, Function<UserMetadata, Map<String, String>> { |
| 44 | @Override |
| 45 | public <R extends HttpRequest> R bindToRequest(R request, Object input) { |
| 46 | checkArgument(checkNotNull(input, "input") instanceof UserMetadata, |
| 47 | "this binder is only valid for UserMetadatas!"); |
| 48 | checkNotNull(request, "request"); |
| 49 | |
| 50 | return ModifyRequest.putHeaders(request, Multimaps.forMap(apply(UserMetadata.class.cast(input)))); |
| 51 | } |
| 52 | |
| 53 | @Override |
| 54 | public Map<String, String> apply(UserMetadata md) { |
| 55 | Builder<String, String> headers = ImmutableMap.<String, String> builder(); |
| 56 | if (md.getMetadata().size() > 0) { |
| 57 | String header = Joiner.on(',').withKeyValueSeparator("=").join(md.getMetadata()); |
| 58 | headers.put("x-emc-meta", header); |
| 59 | } |
| 60 | if (md.getListableMetadata().size() > 0) { |
| 61 | String header = Joiner.on(',').withKeyValueSeparator("=").join(md.getListableMetadata()); |
| 62 | headers.put("x-emc-listable-meta", header); |
| 63 | } |
| 64 | if (md.getTags().size() > 0) { |
| 65 | String header = Joiner.on(',').join(md.getTags()); |
| 66 | headers.put("x-emc-tags", header); |
| 67 | } |
| 68 | if (md.getListableTags().size() > 0) { |
| 69 | String header = Joiner.on(',').join(md.getListableTags()); |
| 70 | headers.put("x-emc-listable-tags", header); |
| 71 | } |
| 72 | return headers.build(); |
| 73 | } |
| 74 | } |