/* * Copyright 2014-2020 Andrew Gaul <[email protected]> * * Licensed 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 * * https://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.gaul.s3proxy; import java.util.List; import org.jclouds.blobstore.BlobStore; import org.jclouds.blobstore.domain.Blob; import org.jclouds.blobstore.domain.BlobMetadata; import org.jclouds.blobstore.domain.MultipartPart; import org.jclouds.blobstore.domain.MultipartUpload; import org.jclouds.blobstore.options.CopyOptions; import org.jclouds.blobstore.options.CreateContainerOptions; import org.jclouds.blobstore.options.PutOptions; import org.jclouds.blobstore.util.ForwardingBlobStore; import org.jclouds.domain.Location; import org.jclouds.io.Payload; /** This class is a BlobStore wrapper which prevents mutating operations. */ final class ReadOnlyBlobStore extends ForwardingBlobStore { private ReadOnlyBlobStore(BlobStore blobStore) { super(blobStore); } static BlobStore newReadOnlyBlobStore(BlobStore blobStore) { return new ReadOnlyBlobStore(blobStore); } @Override public boolean createContainerInLocation(Location location, String container, CreateContainerOptions options) { throw new UnsupportedOperationException("read-only BlobStore"); } @Override public void deleteContainer(String container) { throw new UnsupportedOperationException("read-only BlobStore"); } @Override public boolean deleteContainerIfEmpty(String container) { throw new UnsupportedOperationException("read-only BlobStore"); } @Override public String putBlob(String containerName, Blob blob) { throw new UnsupportedOperationException("read-only BlobStore"); } @Override public String putBlob(final String containerName, Blob blob, final PutOptions options) { throw new UnsupportedOperationException("read-only BlobStore"); } @Override public void removeBlob(final String containerName, final String blobName) { throw new UnsupportedOperationException("read-only BlobStore"); } @Override public void removeBlobs(final String containerName, final Iterable<String> blobNames) { throw new UnsupportedOperationException("read-only BlobStore"); } @Override public String copyBlob(final String fromContainer, final String fromName, final String toContainer, final String toName, final CopyOptions options) { throw new UnsupportedOperationException("read-only BlobStore"); } @Override public MultipartUpload initiateMultipartUpload(String container, BlobMetadata blobMetadata, PutOptions options) { throw new UnsupportedOperationException("read-only BlobStore"); } @Override public void abortMultipartUpload(MultipartUpload mpu) { throw new UnsupportedOperationException("read-only BlobStore"); } @Override public String completeMultipartUpload(final MultipartUpload mpu, final List<MultipartPart> parts) { throw new UnsupportedOperationException("read-only BlobStore"); } @Override public MultipartPart uploadMultipartPart(MultipartUpload mpu, int partNumber, Payload payload) { throw new UnsupportedOperationException("read-only BlobStore"); } }