| /* |
| * 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.cassandra.streaming; |
| |
| import java.io.DataInput; |
| import java.io.IOException; |
| import java.io.Serializable; |
| import java.util.UUID; |
| |
| import com.google.common.base.Objects; |
| |
| import org.apache.cassandra.db.TypeSizes; |
| import org.apache.cassandra.io.IVersionedSerializer; |
| import org.apache.cassandra.io.util.DataOutputPlus; |
| import org.apache.cassandra.net.MessagingService; |
| import org.apache.cassandra.utils.UUIDSerializer; |
| |
| /** |
| * Summary of streaming. |
| */ |
| public class StreamSummary implements Serializable |
| { |
| public static final IVersionedSerializer<StreamSummary> serializer = new StreamSummarySerializer(); |
| |
| public final UUID cfId; |
| |
| /** |
| * Number of files to transfer. Can be 0 if nothing to transfer for some streaming request. |
| */ |
| public final int files; |
| public final long totalSize; |
| |
| public StreamSummary(UUID cfId, int files, long totalSize) |
| { |
| this.cfId = cfId; |
| this.files = files; |
| this.totalSize = totalSize; |
| } |
| |
| @Override |
| public boolean equals(Object o) |
| { |
| if (this == o) return true; |
| if (o == null || getClass() != o.getClass()) return false; |
| StreamSummary summary = (StreamSummary) o; |
| return files == summary.files && totalSize == summary.totalSize && cfId.equals(summary.cfId); |
| } |
| |
| @Override |
| public int hashCode() |
| { |
| return Objects.hashCode(cfId, files, totalSize); |
| } |
| |
| @Override |
| public String toString() |
| { |
| final StringBuilder sb = new StringBuilder("StreamSummary{"); |
| sb.append("path=").append(cfId); |
| sb.append(", files=").append(files); |
| sb.append(", totalSize=").append(totalSize); |
| sb.append('}'); |
| return sb.toString(); |
| } |
| |
| public static class StreamSummarySerializer implements IVersionedSerializer<StreamSummary> |
| { |
| // arbitrary version is fine for UUIDSerializer for now... |
| public void serialize(StreamSummary summary, DataOutputPlus out, int version) throws IOException |
| { |
| UUIDSerializer.serializer.serialize(summary.cfId, out, MessagingService.current_version); |
| out.writeInt(summary.files); |
| out.writeLong(summary.totalSize); |
| } |
| |
| public StreamSummary deserialize(DataInput in, int version) throws IOException |
| { |
| UUID cfId = UUIDSerializer.serializer.deserialize(in, MessagingService.current_version); |
| int files = in.readInt(); |
| long totalSize = in.readLong(); |
| return new StreamSummary(cfId, files, totalSize); |
| } |
| |
| public long serializedSize(StreamSummary summary, int version) |
| { |
| long size = UUIDSerializer.serializer.serializedSize(summary.cfId, MessagingService.current_version); |
| size += TypeSizes.NATIVE.sizeof(summary.files); |
| size += TypeSizes.NATIVE.sizeof(summary.totalSize); |
| return size; |
| } |
| } |
| } |