/*
* 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.openstack.swift.binders;
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;
import javax.inject.Inject;
import javax.inject.Singleton;
import javax.ws.rs.core.MediaType;
import com.google.common.io.BaseEncoding;
import com.google.common.net.HttpHeaders;
import org.jclouds.blobstore.binders.BindUserMetadataToHeadersWithPrefix;
import org.jclouds.http.HttpRequest;
import org.jclouds.openstack.swift.blobstore.functions.ObjectToBlob;
import org.jclouds.openstack.swift.domain.SwiftObject;
import org.jclouds.rest.Binder;
@Singleton
public class BindSwiftObjectMetadataToRequest implements Binder {
private final BindUserMetadataToHeadersWithPrefix mdBinder;
private final ObjectToBlob object2Blob;
@Inject
public BindSwiftObjectMetadataToRequest(ObjectToBlob object2Blob, BindUserMetadataToHeadersWithPrefix mdBinder) {
this.mdBinder = mdBinder;
this.object2Blob = object2Blob;
}
@SuppressWarnings("unchecked")
@Override
public <R extends HttpRequest> R bindToRequest(R request, Object input) {
checkArgument(checkNotNull(input, "input") instanceof SwiftObject, "this binder is only valid for SwiftObject!");
checkNotNull(request, "request");
SwiftObject object = (SwiftObject) input;
if (object.getPayload().getContentMetadata().getContentType() == null)
object.getPayload().getContentMetadata().setContentType(MediaType.APPLICATION_OCTET_STREAM);
if (object.getPayload().getContentMetadata().getContentLength() != null
&& object.getPayload().getContentMetadata().getContentLength() >= 0) {
checkArgument(object.getPayload().getContentMetadata().getContentLength() <= 5l * 1024 * 1024 * 1024,
"maximum size for put object is 5GB");
} else {
// Enable "chunked"/"streamed" data, where the size needn't be known in advance.
request = (R) request.toBuilder().replaceHeader("Transfer-Encoding", "chunked").build();
}
byte[] contentMD5 = object.getInfo().getHash();
if (contentMD5 != null) {
// Swizzle hash to ETag
object.getInfo().setHash(null);
request = (R) request.toBuilder()
.addHeader(HttpHeaders.ETAG,
BaseEncoding.base16().lowerCase().encode(contentMD5))
.build();
}
request = mdBinder.bindToRequest(request, object2Blob.apply(object));
return request;
}
}