/**
* Licensed to jclouds, Inc. (jclouds) under one or more
* contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. jclouds 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.blobstore.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 org.jclouds.blobstore.domain.Blob;
import org.jclouds.http.HttpRequest;
import org.jclouds.rest.Binder;
/**
*
* @author Adrian Cole
*/
@Singleton
public class BindUserMetadataToHeadersWithPrefix implements Binder {
private final BindMapToHeadersWithPrefix metadataPrefixer;
@Inject
public BindUserMetadataToHeadersWithPrefix(BindMapToHeadersWithPrefix metadataPrefixer) {
this.metadataPrefixer = checkNotNull(metadataPrefixer, "metadataPrefixer");
}
@Override
public <R extends HttpRequest> R bindToRequest(R request, Object input) {
checkArgument(checkNotNull(input, "input") instanceof Blob, "this binder is only valid for Blobs!");
checkNotNull(request, "request");
return metadataPrefixer.bindToRequest(request, Blob.class.cast(input).getMetadata().getUserMetadata());
}
}