| /* |
| * 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.beam.sdk.io.gcp.pubsublite; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import org.apache.beam.sdk.coders.AtomicCoder; |
| import org.apache.beam.sdk.coders.Coder; |
| import org.apache.beam.sdk.coders.CoderProvider; |
| import org.apache.beam.sdk.coders.CoderProviders; |
| import org.apache.beam.sdk.coders.DelegateCoder; |
| import org.apache.beam.sdk.coders.KvCoder; |
| import org.apache.beam.sdk.coders.VarLongCoder; |
| import org.apache.beam.sdk.io.range.OffsetRange; |
| import org.apache.beam.sdk.values.KV; |
| import org.apache.beam.sdk.values.TypeDescriptor; |
| |
| public class OffsetByteRangeCoder extends AtomicCoder<OffsetByteRange> { |
| private static final Coder<OffsetByteRange> CODER = |
| DelegateCoder.of( |
| KvCoder.of(OffsetRange.Coder.of(), VarLongCoder.of()), |
| OffsetByteRangeCoder::toKv, |
| OffsetByteRangeCoder::fromKv); |
| |
| private static KV<OffsetRange, Long> toKv(OffsetByteRange value) { |
| return KV.of(value.getRange(), value.getByteCount()); |
| } |
| |
| private static OffsetByteRange fromKv(KV<OffsetRange, Long> kv) { |
| return OffsetByteRange.of(kv.getKey(), kv.getValue()); |
| } |
| |
| @Override |
| public void encode(OffsetByteRange value, OutputStream outStream) throws IOException { |
| CODER.encode(value, outStream); |
| } |
| |
| @Override |
| public OffsetByteRange decode(InputStream inStream) throws IOException { |
| return CODER.decode(inStream); |
| } |
| |
| public static CoderProvider getCoderProvider() { |
| return CoderProviders.forCoder( |
| TypeDescriptor.of(OffsetByteRange.class), new OffsetByteRangeCoder()); |
| } |
| } |