/*
* 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.TypeSerializerConfigSnapshot;
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,
TypeSerializerConfigSnapshot[] fieldSerializerConfigSnapshots) {
super(fieldSerializerConfigSnapshots);
this.tupleClass = Preconditions.checkNotNull(tupleClass);
}
@Override
public void write(DataOutputView out) throws IOException {
super.write(out);
InstantiationUtil.serializeObject(new DataOutputViewStream(out), tupleClass);
}
@Override
public void read(DataInputView in) throws IOException {
super.read(in);
try {
tupleClass = InstantiationUtil.deserializeObject(new DataInputViewStream(in), getUserCodeClassLoader());
} 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();
}
}