public <R extends HttpRequest> R bindToRequest(R request, Object input) {
checkArgument(checkNotNull(input, "input") instanceof ObjectMetadata,
"this binder is only valid for ObjectMetadata!");
checkNotNull(request, "request");
ObjectMetadata md = ObjectMetadata.class.cast(input);
checkArgument(md.getKey() != null, "objectMetadata.getKey() must be set!");
request = metadataPrefixer.bindToRequest(request, md.getUserMetadata());
Builder<String, String> headers = ImmutableMultimap.builder();
if (md.getCacheControl() != null) {
headers.put(HttpHeaders.CACHE_CONTROL, md.getCacheControl());
}
if (md.getContentMetadata().getContentDisposition() != null) {
headers.put("Content-Disposition", md.getContentMetadata().getContentDisposition());
}
if (md.getContentMetadata().getContentEncoding() != null) {
headers.put("Content-Encoding", md.getContentMetadata().getContentEncoding());
}
if (md.getContentMetadata().getContentType() != null) {
headers.put(HttpHeaders.CONTENT_TYPE, md.getContentMetadata().getContentType());
} else {
headers.put(HttpHeaders.CONTENT_TYPE, "binary/octet-stream");
}
if (md.getContentMetadata().getContentMD5() != null) {
headers.put("Content-MD5", base64().encode(md.getContentMetadata().getContentMD5()));
}
return (R) request.toBuilder().replaceHeaders(headers.build()).build();
}