| /* |
| * 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.java.typeutils.runtime; |
| |
| import org.apache.flink.annotation.Internal; |
| import org.apache.flink.api.common.typeutils.CompositeTypeSerializerConfigSnapshot; |
| import org.apache.flink.api.common.typeutils.TypeSerializer; |
| import org.apache.flink.core.memory.DataInputView; |
| import org.apache.flink.core.memory.DataOutputView; |
| import org.apache.flink.util.InstantiationUtil; |
| import org.apache.flink.util.Preconditions; |
| |
| import java.io.IOException; |
| |
| /** |
| * Snapshot of a tuple serializer's configuration. |
| */ |
| @Internal |
| public final class TupleSerializerConfigSnapshot<T> extends CompositeTypeSerializerConfigSnapshot { |
| |
| private static final int VERSION = 1; |
| |
| private Class<T> tupleClass; |
| |
| /** This empty nullary constructor is required for deserializing the configuration. */ |
| public TupleSerializerConfigSnapshot() {} |
| |
| public TupleSerializerConfigSnapshot(Class<T> tupleClass, TypeSerializer<?>[] fieldSerializers) { |
| super(fieldSerializers); |
| |
| this.tupleClass = Preconditions.checkNotNull(tupleClass); |
| } |
| |
| @Override |
| public void write(DataOutputView out) throws IOException { |
| super.write(out); |
| |
| try (final DataOutputViewStream outViewWrapper = new DataOutputViewStream(out)) { |
| InstantiationUtil.serializeObject(outViewWrapper, tupleClass); |
| } |
| } |
| |
| @Override |
| public void read(DataInputView in) throws IOException { |
| super.read(in); |
| |
| try (final DataInputViewStream inViewWrapper = new DataInputViewStream(in)) { |
| tupleClass = InstantiationUtil.deserializeObject(inViewWrapper, getUserCodeClassLoader(), true); |
| } catch (ClassNotFoundException e) { |
| throw new IOException("Could not find requested tuple class in classpath.", e); |
| } |
| } |
| |
| @Override |
| public int getVersion() { |
| return VERSION; |
| } |
| |
| public Class<T> getTupleClass() { |
| return tupleClass; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| return super.equals(obj) |
| && (obj instanceof TupleSerializerConfigSnapshot) |
| && (tupleClass.equals(((TupleSerializerConfigSnapshot) obj).getTupleClass())); |
| } |
| |
| @Override |
| public int hashCode() { |
| return super.hashCode() * 31 + tupleClass.hashCode(); |
| } |
| } |