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/*
* 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.apache.hadoop.ozone.container.common.helpers;
import com.google.common.base.Preconditions;
import com.google.protobuf.ByteString;
import org.apache.hadoop.hdds.protocol.proto.ContainerProtos;
/**
* File Utils are helper routines used by putSmallFile and getSmallFile
* RPCs.
*/
public final class FileUtils {
/**
* Never Constructed.
*/
private FileUtils() {
}
/**
* Gets a response for the putSmallFile RPC.
* @param msg - ContainerCommandRequestProto
* @return - ContainerCommandResponseProto
*/
public static ContainerProtos.ContainerCommandResponseProto
getPutFileResponse(ContainerProtos.ContainerCommandRequestProto msg) {
ContainerProtos.PutSmallFileResponseProto.Builder getResponse =
ContainerProtos.PutSmallFileResponseProto.newBuilder();
ContainerProtos.ContainerCommandResponseProto.Builder builder =
ContainerUtils.getContainerResponse(msg, ContainerProtos.Result
.SUCCESS, "");
builder.setCmdType(ContainerProtos.Type.PutSmallFile);
builder.setPutSmallFile(getResponse);
return builder.build();
}
/**
* Gets a response to the read small file call.
* @param msg - Msg
* @param data - Data
* @param info - Info
* @return Response.
*/
public static ContainerProtos.ContainerCommandResponseProto
getGetSmallFileResponse(ContainerProtos.ContainerCommandRequestProto msg,
byte[] data, ChunkInfo info) {
Preconditions.checkNotNull(msg);
ContainerProtos.ReadChunkResponseProto.Builder readChunkresponse =
ContainerProtos.ReadChunkResponseProto.newBuilder();
readChunkresponse.setChunkData(info.getProtoBufMessage());
readChunkresponse.setData(ByteString.copyFrom(data));
readChunkresponse.setPipeline(msg.getGetSmallFile().getKey().getPipeline());
ContainerProtos.GetSmallFileResponseProto.Builder getSmallFile =
ContainerProtos.GetSmallFileResponseProto.newBuilder();
getSmallFile.setData(readChunkresponse.build());
ContainerProtos.ContainerCommandResponseProto.Builder builder =
ContainerUtils.getContainerResponse(msg, ContainerProtos.Result
.SUCCESS, "");
builder.setCmdType(ContainerProtos.Type.GetSmallFile);
builder.setGetSmallFile(getSmallFile);
return builder.build();
}
}
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