/*
* Copyright 2016 The Simple File Server Authors
*
* 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
*
* 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.sfs.nodes.data;
import com.google.common.base.Optional;
import io.vertx.core.http.HttpServerResponse;
import org.sfs.SfsRequest;
import org.sfs.filesystem.volume.ReadStreamBlob;
import org.sfs.rx.Holder2;
import rx.functions.Func1;
import static java.lang.String.valueOf;
import static org.sfs.util.SfsHttpHeaders.X_CONTENT_OFFSET;
public class WriteReadStreamBlobAsHttpResponseHeaders<A extends ReadStreamBlob> implements Func1<Holder2<SfsRequest, Optional<A>>, Holder2<SfsRequest, Optional<A>>> {
@Override
public Holder2<SfsRequest, Optional<A>> call(Holder2<SfsRequest, Optional<A>> input) {
HttpServerResponse httpServerResponse = input.value0().response();
Optional<A> oBlob = input.value1();
if (oBlob.isPresent()) {
A blob = oBlob.get();
long offset = blob.getOffset();
httpServerResponse
.putHeader(X_CONTENT_OFFSET, valueOf(offset));
}
return input;
}
}