Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.jclouds.googlecloudstorage.blobstore.functions; import org.jclouds.blobstore.domain.MutableBlobMetadata; import org.jclouds.blobstore.domain.StorageType; import org.jclouds.blobstore.domain.internal.MutableBlobMetadataImpl; import org.jclouds.googlecloudstorage.domain.GoogleCloudStorageObject; import org.jclouds.javax.annotation.Nullable; import com.google.common.base.Function; import com.google.common.hash.HashCode; import com.google.common.io.BaseEncoding; public class ObjectToBlobMetadata implements Function<GoogleCloudStorageObject, MutableBlobMetadata> { public MutableBlobMetadata apply(GoogleCloudStorageObject from) { if (from == null) { return null; } MutableBlobMetadata to = new MutableBlobMetadataImpl(); to.getContentMetadata().setContentMD5(toHashCode(from.md5Hash())); to.getContentMetadata().setContentType(from.contentType()); to.getContentMetadata().setContentDisposition(from.contentDisposition()); to.getContentMetadata().setContentEncoding(from.contentEncoding()); to.getContentMetadata().setContentLanguage(from.contentLanguage()); to.getContentMetadata().setContentLength(from.size()); to.setLastModified(from.updated()); to.setContainer(from.bucket()); to.setUserMetadata(from.metadata()); to.setETag(from.etag()); to.setName(from.name()); to.setUri(from.selfLink()); to.setId(from.id()); to.setPublicUri(from.mediaLink()); to.setType(StorageType.BLOB); to.setSize(from.size()); to.setTier(from.storageClass().toTier()); return to; } private static HashCode toHashCode(@Nullable String hashCode) { return hashCode == null ? null : HashCode.fromBytes(BaseEncoding.base64().decode(hashCode)); } }