| 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.functions; |
| 20 | |
| 21 | import static com.google.common.base.Preconditions.checkNotNull; |
| 22 | |
| 23 | import javax.inject.Inject; |
| 24 | import javax.inject.Provider; |
| 25 | import javax.inject.Singleton; |
| 26 | |
| 27 | import org.jclouds.atmos.domain.BoundedSet; |
| 28 | import org.jclouds.atmos.domain.DirectoryEntry; |
| 29 | import org.jclouds.atmos.domain.internal.BoundedLinkedHashSet; |
| 30 | import org.jclouds.atmos.reference.AtmosHeaders; |
| 31 | import org.jclouds.atmos.xml.ListDirectoryResponseHandler; |
| 32 | import org.jclouds.http.HttpResponse; |
| 33 | import org.jclouds.http.functions.ParseSax; |
| 34 | import org.jclouds.http.functions.ParseSax.Factory; |
| 35 | |
| 36 | import com.google.common.base.Function; |
| 37 | |
| 38 | /** |
| 39 | * This parses {@link BoundedSet} from HTTP headers and xml content. |
| 40 | * |
| 41 | * @author Adrian Cole |
| 42 | */ |
| 43 | @Singleton |
| 44 | public class ParseDirectoryListFromContentAndHeaders implements Function<HttpResponse, BoundedSet<DirectoryEntry>> { |
| 45 | |
| 46 | private final ParseSax.Factory factory; |
| 47 | private final Provider<ListDirectoryResponseHandler> listHandlerProvider; |
| 48 | |
| 49 | @Inject |
| 50 | ParseDirectoryListFromContentAndHeaders(Factory factory, Provider<ListDirectoryResponseHandler> listHandlerProvider) { |
| 51 | this.factory = checkNotNull(factory, "factory"); |
| 52 | this.listHandlerProvider = checkNotNull(listHandlerProvider, "listHandlerProvider"); |
| 53 | } |
| 54 | |
| 55 | /** |
| 56 | * parses the http response headers to create a new {@link BoundedSet} object. |
| 57 | */ |
| 58 | public BoundedSet<DirectoryEntry> apply(HttpResponse from) { |
| 59 | checkNotNull(from, "http response"); |
| 60 | String token = from.getFirstHeaderOrNull(AtmosHeaders.TOKEN); |
| 61 | return new BoundedLinkedHashSet<DirectoryEntry>(factory.create(listHandlerProvider.get()).parse( |
| 62 | from.getPayload().getInput()), token); |
| 63 | } |
| 64 | } |