/*
* 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;
import org.apache.flink.annotation.Internal;
import org.apache.flink.core.memory.DataInputView;
import org.apache.flink.core.memory.DataOutputView;
import org.apache.flink.util.Preconditions;
import java.io.IOException;
import java.util.Arrays;
/**
* A {@link TypeSerializerConfigSnapshot} for serializers that has multiple nested serializers.
* The configuration snapshot consists of the configuration snapshots of all nested serializers.
*/
@Internal
public abstract class CompositeTypeSerializerConfigSnapshot extends TypeSerializerConfigSnapshot {
private TypeSerializerConfigSnapshot[] nestedSerializerConfigSnapshots;
/** This empty nullary constructor is required for deserializing the configuration. */
public CompositeTypeSerializerConfigSnapshot() {}
public CompositeTypeSerializerConfigSnapshot(TypeSerializerConfigSnapshot... nestedSerializerConfigSnapshots) {
this.nestedSerializerConfigSnapshots = Preconditions.checkNotNull(nestedSerializerConfigSnapshots);
}
@Override
public void write(DataOutputView out) throws IOException {
super.write(out);
TypeSerializerUtil.writeSerializerConfigSnapshots(out, nestedSerializerConfigSnapshots);
}
@Override
public void read(DataInputView in) throws IOException {
super.read(in);
nestedSerializerConfigSnapshots = TypeSerializerUtil.readSerializerConfigSnapshots(in, getUserCodeClassLoader());
}
public TypeSerializerConfigSnapshot[] getNestedSerializerConfigSnapshots() {
return nestedSerializerConfigSnapshots;
}
public TypeSerializerConfigSnapshot getSingleNestedSerializerConfigSnapshot() {
return nestedSerializerConfigSnapshots[0];
}
@Override
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
if (obj == null) {
return false;
}
return (obj.getClass().equals(getClass()))
&& Arrays.equals(
nestedSerializerConfigSnapshots,
((CompositeTypeSerializerConfigSnapshot) obj).getNestedSerializerConfigSnapshots());
}
@Override
public int hashCode() {
return Arrays.hashCode(nestedSerializerConfigSnapshots);
}
}