| 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.blobstore.strategy.internal; |
| 20 | |
| 21 | import static org.jclouds.io.Payloads.newByteArrayPayload; |
| 22 | |
| 23 | import javax.inject.Named; |
| 24 | import javax.inject.Singleton; |
| 25 | |
| 26 | import org.jclouds.blobstore.BlobStore; |
| 27 | import org.jclouds.blobstore.domain.StorageType; |
| 28 | import org.jclouds.blobstore.reference.BlobStoreConstants; |
| 29 | import org.jclouds.blobstore.strategy.MkdirStrategy; |
| 30 | |
| 31 | import com.google.inject.Inject; |
| 32 | |
| 33 | /** |
| 34 | * Key-value implementations of BlobStore, such as S3, do not have directories. In following the |
| 35 | * rackspace cloud files project, we use an empty object '#{dirpath}' with content type set to |
| 36 | * 'application/directory'. |
| 37 | * |
| 38 | * @author Adrian Cole |
| 39 | */ |
| 40 | @Singleton |
| 41 | public class MarkerFileMkdirStrategy implements MkdirStrategy { |
| 42 | |
| 43 | @Inject(optional = true) |
| 44 | @Named(BlobStoreConstants.PROPERTY_BLOBSTORE_DIRECTORY_SUFFIX) |
| 45 | protected String directorySuffix = ""; |
| 46 | private final BlobStore blobStore; |
| 47 | |
| 48 | @Inject |
| 49 | MarkerFileMkdirStrategy(BlobStore blobStore) { |
| 50 | this.blobStore = blobStore; |
| 51 | } |
| 52 | |
| 53 | public void execute(String containerName, String directory) { |
| 54 | blobStore.putBlob( |
| 55 | containerName, |
| 56 | blobStore.blobBuilder(directory + directorySuffix).type(StorageType.RELATIVE_PATH) |
| 57 | .payload(newByteArrayPayload(new byte[] {})).contentType("application/directory").build()); |
| 58 | } |
| 59 | } |