| /* |
| * 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.flink.api.common.typeutils.base.array; |
| |
| import org.apache.flink.annotation.Internal; |
| import org.apache.flink.api.common.typeutils.base.TypeSerializerSingleton; |
| import org.apache.flink.core.memory.DataInputView; |
| import org.apache.flink.core.memory.DataOutputView; |
| |
| import java.io.IOException; |
| |
| /** |
| * A serializer for byte arrays. |
| */ |
| @Internal |
| public final class BytePrimitiveArraySerializer extends TypeSerializerSingleton<byte[]>{ |
| |
| private static final long serialVersionUID = 1L; |
| |
| private static final byte[] EMPTY = new byte[0]; |
| |
| public static final BytePrimitiveArraySerializer INSTANCE = new BytePrimitiveArraySerializer(); |
| |
| @Override |
| public boolean isImmutableType() { |
| return false; |
| } |
| |
| @Override |
| public byte[] createInstance() { |
| return EMPTY; |
| } |
| |
| @Override |
| public byte[] copy(byte[] from) { |
| byte[] copy = new byte[from.length]; |
| System.arraycopy(from, 0, copy, 0, from.length); |
| return copy; |
| } |
| |
| @Override |
| public byte[] copy(byte[] from, byte[] reuse) { |
| return copy(from); |
| } |
| |
| @Override |
| public int getLength() { |
| return -1; |
| } |
| |
| |
| @Override |
| public void serialize(byte[] record, DataOutputView target) throws IOException { |
| if (record == null) { |
| throw new IllegalArgumentException("The record must not be null."); |
| } |
| |
| final int len = record.length; |
| target.writeInt(len); |
| target.write(record); |
| } |
| |
| @Override |
| public byte[] deserialize(DataInputView source) throws IOException { |
| final int len = source.readInt(); |
| byte[] result = new byte[len]; |
| source.readFully(result); |
| return result; |
| } |
| |
| @Override |
| public byte[] deserialize(byte[] reuse, DataInputView source) throws IOException { |
| return deserialize(source); |
| } |
| |
| @Override |
| public void copy(DataInputView source, DataOutputView target) throws IOException { |
| final int len = source.readInt(); |
| target.writeInt(len); |
| target.write(source, len); |
| } |
| |
| @Override |
| public boolean canEqual(Object obj) { |
| return obj instanceof BytePrimitiveArraySerializer; |
| } |
| } |