/*
 * Copyright 2019 Red Hat
 *
 * Licensed 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 io.apicurio.registry.kafka.snapshot;

import io.apicurio.registry.utils.kafka.SelfSerde;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectInputStream;
import java.io.ObjectOutput;
import java.io.ObjectOutputStream;

/**
 * @author Ales Justin
 */
public class StorageSnapshotSerde extends SelfSerde<StorageSnapshot> {

    // TODO -- optimize this if/when need (via Protobuf)

    @Override
    public StorageSnapshot deserialize(String topic, byte[] data) {
        try {
            ByteArrayInputStream bais = new ByteArrayInputStream(data);
            ObjectInput in = new ObjectInputStream(bais);
            return (StorageSnapshot) in.readObject();
        } catch (Exception e) {
            throw new IllegalStateException(e);
        }
    }

    @Override
    public byte[] serialize(String topic, StorageSnapshot data) {
        try {
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(baos);
            out.writeObject(data);
            return baos.toByteArray();
        } catch (IOException e) {
            throw new IllegalStateException(e);
        }
    }
}
